Honeywell 68 0287 04 Thermostat User Manual

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®
VisionPRO IAQ  
Total Home Comfort System  
PRODUCT DATA  
FEATURES  
Large, clear display with backlight shows the current  
and set temperature and time—even in the dark.  
Touchscreen interaction  
Real-time clock keeps time during power failures and  
automatically updates to daylight savings.  
Change/check reminders let you know when to service  
or replace filters.  
Various Hold options allow you to override the  
program schedule, as desired.  
Controls humidification to increase homeowner  
comfort while protecting woodwork and furnishings.  
Controls dehumidification using air conditioner with  
high or low speed fan or a whole house dehumidifier.  
Controls ventilation with other HRV, ERV, or Freshair  
damper. Vent on demand and automatically using  
patented advanced ventilation control.  
Advanced heat pump control featuring balance point  
plus temperature droop control to increase  
homeowner comfort.  
APPLICATION  
®
The VisionPRO IAQ Total Home Comfort System features an  
effortless, 7-Day programmable touchscreen thermostat that  
provides control of temperature, humidification,  
dehumidification, and ventilation.  
Contents  
Application/Features..........................................................  
Specifications/Ordering Information ..................................  
Installation ........................................................................  
Wiring ...............................................................................  
Power the Thermostat ......................................................  
1
2
4
5
8
Installer Setup .................................................................. 12  
Operation .......................................................................... 20  
Programming .................................................................... 26  
Troubleshooting ................................................................ 36  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
SPECIFICATIONS  
Thermostat Description:  
Finish:  
®
®
VisionPRO IAQ Thermostats: Premier White color.  
THM5421C1008: Premier White color.  
C7189U1005 Wall Mount Remote Indoor Sensor: Premier  
®
Feature  
Description  
Common wire only  
®
Powering method  
White color.  
System types (up to  Gas, oil or electric heat with air  
Clock Accuracy: +/- 1 minute per year.  
4
heat/2 cool)  
conditioning  
Warm air, hot water, high-efficiency  
furnaces, heat pumps, steam and  
gravity  
Heat only with fan  
Cool only  
Resistance Characteristics of Remote Sensors:  
C7089U1006 Outdoor Sensor: Negative temperature coeffi-  
cient (NTC) means that resistance decreases as the tem-  
perature increases. See Table 12 in the Operation section  
for sensor resistance characteristics.  
C7189U1005 Remote Indoor Sensor: Negative temperature  
coefficient (NTC), means that resistance decreases as the  
temperature increases. See Table 13 in the Operation sec-  
tion for sensor resistance characteristics.  
Changeover  
System setting  
Fan setting  
Manual or Auto changeover selectable  
Heat-Off-Cool-Auto  
Auto-On-Circ  
Electrical Ratings:  
Cool Indication:  
VisionPRO IAQ Comfort Systems show “Cool On” on the  
®
thermostat screen when Cool is activated.  
Terminal  
Voltage (50/60 Hz) Running Current  
W1 Heating  
20 - 30 Vac  
.02 - 1.0A  
.02 - 1.0A  
.02 - 1.0A  
.02 - 1.0A  
.02 - 1.0A  
.02 - 1.0A  
Heat Indication:  
VisionPRO IAQ Comfort Systems show “Heat On” on the  
®
W2/Aux Heating 20 - 30 Vac  
W3/Aux2 Heating 20 - 30 Vac  
thermostat screen when Heat is activated.  
Y Cooling  
Y2 Cooling  
G Fan  
20 - 30 Vac  
20 - 30 Vac  
20 - 30 Vac  
Auxiliary Heat Indication:  
®
VisionPRO IAQ Comfort Systems show “Aux. Heat On” on  
the thermostat screen when Auxiliary Heat is activated.  
Calibration:  
®
Temperature Setting Range:  
C7089U1006, C7189U1005 and VisionPRO IAQ Comfort Sys-  
Heating: 40°F to 90°F(4.5°C to 32°C).  
Cooling: 50°F to 99°F (10°C to 37°C).  
tems are factory-calibrated and require no field calibration.  
Interstage Differential:  
®
Operating Ambient Temperature:  
VisionPRO IAQ Comfort Systems operate with droopless  
VisionPRO® IAQ Thermostats: 0°F to 120°F  
control. Once the thermostat senses that 1st stage is run-  
(-18°C to 49°C).  
ning at 90% capacity, the thermostat energizes 2nd stage.  
THM5421C1008: -30°F to 150°F (-34°C to 66°C).  
C7089U1006: -40°F to 120°F (-40°C to 49°C).  
C7189U1005: 45°F to 88°F (7°C to 32°C).  
Mounting Means:  
VisionPRO IAQ Comfort System: Thermostat mounts directly  
®
on the wall in the living space using mounting screws and  
anchors provided. Fits a vertical or horizontal 2 x 4 in. junc-  
tion box.  
Shipping Temperature:  
VisionPRO® IAQ Thermostats: -30°F to 150°F  
(
-34°C to 66°C).  
THM5421C1008 Equipment Interface Module (EIM) mounts on  
HVAC equipment or on a wall in the equipment room.  
C7089U1006 Outdoor Sensor: Mounts outside of living space  
with mounting clip and screws provided.  
THM5421C1008: -30°F to 150°F (-34°C to 66°C).  
Operating Relative Humidity (Non-condensing):  
VisionPRO® IAQ Thermostats: 5% to 90%.  
THM5421C1008: 5% to 90%.  
C7189U1005 Remote Indoor Sensor: Mounts directly on the  
wall using mounting screws and anchors provided.  
C7089U1006: 5% to 95%.  
C7189U1005: 5% to 95%.  
Cover Plate:  
3
2003796-001 Cover Plate is used to cover marks left on the  
wall by the old thermostat.  
Humidification Setting Range:  
Heating: 10% to 60% RH.  
Dimensions:  
VisionPRO IAQ Comfort System: see Fig. 1.  
®
Dehumidification Setting Range:  
Heating: 40% to 80% RH.  
THM5421C1008: see Fig. 2  
C7089U1006 Outdoor Sensor Mounting Clip: see Fig. 3.  
Humidity Display Range:  
32003796-001 Cover Plate: see Fig. 4.  
C7189U1005 Remote Indoor Sensor: see Fig. 5.  
0% to 99%.  
Cycle Rates (at 50% Load):  
Heating: Selectable 1 - 12 cycles per hour.  
Cooling: Selectable 1 - 6 cycles per hour.  
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2
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
WALLPLATE  
-3/8 (86)  
1-1/2 (38)  
3
3
-3/8 (86)  
M4488  
THERMOSTAT  
AND WALLPLATE  
-3/8 (35)  
Fig. 3. C7089U1006 Outdoor Sensor Mounting Clip  
dimensions in in. (mm).  
THERMOSTAT  
(152)  
1
6
7
3
-7/8 (200)  
-5/16 (84)  
4-9/16  
(116)  
5
-1/2  
140)  
(
3
-5/16  
84)  
(
M23539  
Fig. 1. VisionPRO® IAQ Comfort System  
dimensions in in. (mm).  
M22139  
Fig. 4. 32003796-001 Cover Plate dimensions in in. (mm).  
7-9/32  
(185)  
6
-57/64  
175)  
(
4
-35/64  
116)  
1-21/64  
(34)  
(
FRONT VIEW  
SIDE VIEW  
M23544  
Fig. 2. THM5421C1008 Equipment Interface Module  
dimensions in in. (mm).  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
2
-9/32  
58)  
2-9/32  
(58)  
(
1
-1/2 (38)  
45/64  
18)  
1-1/2 (38)  
(
M23522  
FRONT VIEW  
SIDE VIEW  
FRONT VIEW (COVER OFF)  
Fig. 5. C7189U1005 Remote Indoor Sensor dimensions in in. (mm).  
Do not install the thermostat where it can be affected by:  
INSTALLATION  
Drafts or dead spots behind doors and in corners.  
Hot or cold air from ducts.  
Radiant heat from sun or appliances.  
Concealed pipes and chimneys.  
Unheated (uncooled) areas such as an outside wall behind  
the thermostat.  
When Installing this Product...  
1.  
Read these instructions carefully. Failure to follow the  
instructions can damage the product or cause a hazard-  
ous condition.  
2.  
3.  
4.  
Check the ratings given in the instructions to make sure  
the product is suitable for your application.  
Installer must be a trained, experienced service  
technician.  
After completing installation, use these instructions to  
verify the product operation.  
Installing Wallplate  
CAUTION  
Electrical Hazard.  
Can cause electrical shock or equipment damage.  
Disconnect power before wiring.  
Selecting Location  
Install the thermostat about 5 ft. (1.5m) above the floor in an area  
with good air circulation at average temperature. See Fig. 6.  
The thermostat can be mounted horizontally on the wall or on a  
in. x 2 in. (101.6 mm x 50.8 mm) wiring box.  
4
1.  
2.  
3.  
Position and level the wallplate (for appearance only).  
Use a pencil to mark the mounting holes.  
Remove the wallplate from the wall and, if drywall, drill  
two 3/16-in. holes in the wall, as marked. For firmer  
material such as plaster, drill two 7/32-in. holes. Gently  
tap anchors (provided) into the drilled holes until flush  
with the wall.  
NO  
YES  
NO  
NO  
5 FEET  
[
1.5 METERS]  
M19925  
Fig. 6. Selecting thermostat location.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
4
.
.
Position the wallplate over the holes, pulling wires  
through the wiring opening. See Fig. 7.  
Insert the mounting screws into the holes and tighten.  
NOTE: It is normal for the LED to blink continuously during  
startup, and while checking equipment status (Auto  
Discover mode).  
5
WALL  
WIRES THROUGH WALL  
AND WIRE SLOT  
WALL ANCHORS (2)  
WALL ANCHOR  
COMMUNICATION LED  
MOUNTING  
HOLES  
DRILL 3/16 IN. HOLES  
FOR DRYWALL. DRILL  
M23541  
7
/32 IN. HOLES FOR  
PLASTER  
MOUNTING  
SCREWS (2)  
M23543  
Fig. 7. Mounting wallplate.  
Installing Equipment Interface Module (EIM)  
MOUNTING SCREW  
M23484  
CAUTION  
Electrical Hazard.  
Fig. 8. Mounting EIM.  
Can cause electrical shock or equipment damage.  
Disconnect power before wiring.  
WIRING  
The EIM can be mounted vertically on the HVAC equipment or  
on a wall in the equipment room.  
All wiring must comply with local electrical codes and  
ordinances. See Fig. 10–20.  
1.  
2.  
3.  
Position the EIM.  
Use a pencil to mark the mounting holes.  
Remove the wallplate from the wall and, if drywall, drill  
two 3/16-in. holes in the wall, as marked. For firmer  
material such as plaster, drill two 7/32-in. holes. Gently  
tap anchors (provided) into the drilled holes until flush  
with the wall.  
1
.
.
Select set of terminal identifications (Table 1) that corre-  
sponds with system type.  
Loosen the screws for the appropriate system type  
selected; see Table 1. See Table 2 for terminal designa-  
tion descriptions. Insert wires in the terminal block under  
the loosened screw. See Fig. 9.  
2
4
.
.
Position the wallplate over the holes, pulling wires  
through the wiring opening.  
Insert the mounting screws into the holes and tighten.  
See Fig. 8.  
3.  
4.  
5.  
Securely tighten each screw.  
Push excess wire back into the hole.  
Plug the hole with nonflammable insulation to prevent  
drafts from affecting the thermostat.  
5
6.  
See Fig. 10–20 for typical wiring hookups.  
Communication LED  
The EIM has an LED (see Fig. 8) that communicates the EIM  
status as follows.  
Table 1. Selecting Terminal Identifications for System Type.  
Wallplate Terminal Wiring Diagram  
LED blinks rapidly: Normal information transfer.  
LED blinks once: Incoming message to EIM.  
LED blinks continuously: Wiring problem. Check wiring to  
terminals 1, 2, 3.  
System Type  
Identifications  
Reference  
10, 11  
12  
Standard Heat/Cool Conventional  
StandardMultistage Conventional  
up to 3 Heat/2 Cool  
LED always off: Wiring problem. Check wiring to terminals  
1
, 2, 3.  
Heat Pump with  
Auxiliary Heat  
Heat Pump  
13  
LED always on: EIM may need replacement.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
NOTES:  
1.  
When used in a single-transformer system, leave  
the metal jumper wires in place between R and Rc,  
and Rc and Rh. If used on a two-transformer sys-  
tem, remove metal jumper wire between Rc and Rh.  
If thermostat is configured for a heat pump system  
in the Installer Setup, configure changeover valve  
for cool (O-factory setting) or heat (B).  
2.  
For wiring to a W8835 Zone panel please refer to the product  
data sheet included with the panel.  
M23541  
Fig. 9. Inserting wires in terminal block.  
1
IMPORTANT  
COMMUNICATION LED  
COMMUNICATION  
TERMINALS  
Use 18-gauge thermostat wire.  
1
2
3
1
CONV. HP  
W1 O/B  
2
3
Table 2. Terminal Designation Descriptions.  
W2 AUX  
C
2
4 VAC  
W3 AUX2  
R
THM5421C1008  
Terminal  
Designations  
Y
Y
RC  
RH  
Y2 Y2  
Function  
G
G
1
2
3
Terminal 1—data to/from thermostat  
Terminal 2—power from thermostat (24Vac)  
Terminal 3—common from thermostat  
FACTORY INSTALLED  
JUMPER BETWEEN R,  
RC AND RH  
1
WIRE TO TERMINALS ON THERMOSTAT.  
M23485  
(24Vac)  
Fig. 10. Typical hookup of conventional single-stage heat  
and cool system with single transformer  
C
24 Vac Transformer Common  
24 Vac Transformer  
R
(
1H/1C conventional).  
RC  
24 Vac Cooling Transformer  
24 Vac Heating Transformer  
Humidification Connection (normally open)  
RH  
1
HUM1/HUM2  
DHM1/DHM2  
1
COMMUNICATION LED  
1
COMMUNICATION  
TERMINALS  
CONV. HP  
W1 O/B  
2
3
2
Dehumidification Connection (normally  
open or closed based on installer setup)  
3
W2 AUX  
C
2
4 VAC  
W3  
Y
AUX2  
Y
VNT1/VNT2  
W1/O/B  
Ventilation connection (normally open)  
R
Stage 1 Heating Relay (Conventional)  
Change-over Relay (Heat Pump)  
RC  
RH  
Y2 Y2  
G
G
W2/AUX  
Stage 2 Heating Relay (Conventional)  
Auxiliary Heat (fossil fuel or electric) (Heat  
Pump)  
OIL PRIMARY/  
AQUASTAT  
FACTORY INSTALLED JUMPER BETWEEN R,  
AND RC (REMOVE FACTORY INSTALLED  
JUMPER BETWEEN RC AND RH  
W3/AUX2  
Stage 3 Heating Relay (Conventional)  
Auxiliary Heat (fossil fuel or electric) (Heat  
Pump)  
1
WIRE TO TERMINALS ON THERMOSTAT.  
M23486  
Fig. 11. Typical hookup of conventional single-stage heat  
and cool system with oil primary (1H/1C conventional).  
Y
Stage 1 Compressor Relay  
Stage 2 Compressor Relay  
Fan Relay  
Y2  
G
L
Heat Pump Equipment Monitor  
Outdoor Temperature Sensor  
Remote Indoor Temperature Sensor  
OUT1/OUT2  
IN1/IN2  
DATS1/DATS2 Discharge Air Temperature Sensor  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
KEY  
1
2
3
C
=
=
NORMALLY OPEN, DRY CONTACTS  
2
4 VAC  
R
RC  
RH  
NORMALLY CLOSED, DRY CONTACTS  
M23685  
H1  
U
POWERED  
HUMIDIFIER  
M2  
D1  
H
OR  
1
M2  
HEAT 1 RELAY  
COMMUNICATION LED  
V1  
N
1
2
3
1
COMMUNICATION CONV. HP  
T2  
2
TERMINALS  
W1 O/B  
HEAT 2 RELAY  
HEAT 3 RELAY  
COOL 1 RELAY  
COOL 2 RELAY  
FAN RELAY  
M23490  
3
W2 AUX  
C
2
4 VAC  
W3 AUX2  
Fig. 15. Typical hookup of powered humidifier.  
R
Y
Y
RC  
RH  
Y2 Y2  
G
G
1
2
3
C
FACTORY INSTALLED  
JUMPER BETWEEN R,  
RC AND RH  
2
4 VAC  
1
WIRE TO TERMINALS ON THERMOSTAT.  
M23487  
R
RC  
RH  
FIELD INSTALLED  
JUMPER BETWEEN  
R AND DHM 1  
Fig. 12. Typical hookup of conventional system with up to  
three-stage heat and two-stage cool with one transformer  
(
3H/2C, 2H/2C, 2H/1C, 1H/2C, 1H/1C conventional).  
H1  
U
M2  
D1  
H
OR  
NON-POWERED  
DEHUMIDIFIER  
M2  
1
CHANGEOVER  
V1  
N
COMMUNICATION LED  
1
2
3
1
T2  
COMMUNICATION CONV. HP  
2
AUX 1 (HEAT 3)  
AUX 2 (HEAT 4)  
COMP 1  
M23491  
TERMINALS  
W1 O/B  
3
W2 AUX  
C
2
4 VAC  
W3  
Y
AUX2  
Y
Fig. 16. Typical hookup of variable speed blower for  
dehumidification in low speed (contacts normally closed).  
R
RC  
RH  
Y2 Y2  
COMP 2  
NOTE: Connect DHM2 to low-speed fan terminal on air han-  
dler for dehumidification with air conditioner and a  
low-speed fan.  
G
G
FAN RELAY  
FACTORY INSTALLED  
JUMPER BETWEEN R,  
RC AND RH  
1
WIRE TO TERMINALS ON THERMOSTAT.  
M23488  
1
2
3
C
Fig. 13. Typical hookup of heat pump system  
(up to 4H/2C heat pump).  
2
4 VAC  
R
RC  
RH  
1
2
3
H1  
U
C
R
RC  
M2  
2
4 VAC  
D1  
POWERED  
H
OR  
DEHUMIDIFIER  
FIELD INSTALLED  
JUMPER BETWEEN  
R AND HUM 1  
M2  
RH  
V1  
N
T2  
H1  
U
M23492  
NON-POWERED  
HUMIDIFIER  
M2  
D1  
H
OR  
Fig. 17. Typical hookup of powered whole house  
dehumidifier (contacts normally open).  
M2  
V1  
N
T2  
M23489  
Fig. 14. Typical hookup of non-powered humidifier.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
POWER THE THERMOSTAT  
1
2
3
C
24 Vac common wire only to EIM or zone panel.  
2
4 VAC  
R
Wiring 24 Vac Common  
RC  
RH  
FIELD INSTALLED  
JUMPER BETWEEN  
R AND VNT 1  
Single-Transformer System—Connect the common side of  
the transformer to the C screw terminal of the EIM. Leave  
the metal jumper wires in place between R, Rc, and RH.  
Two-Transformer System—Connect the common side of  
the cooling transformer to the C screw terminal of the EIM.  
Remove the metal jumper wire between Rc and Rh.  
Connect the hot side of heating transformer to Rh and leave  
the jumper wire between R and Rc and connect the hot side  
of cooling transformer to R or Rc.  
H1  
U
M2  
D1  
H
OR  
M2  
V1  
N
NON-POWERED  
VENTILATOR  
T2  
M23493  
1.  
Locate and remove the tab labeled, Remove, in the  
lower left corner on the thermostat back. See Fig. 21.  
Fig. 18. Typical hookup of fresh air damper.  
NOTE: Use this hookup for ventilation using a fresh air  
damper.  
REMOVE  
TAB  
1
2
3
C
M
V
 D
 R
 G
SALTION  
2
4 VAC  
R
RC  
RH  
M
V
 D
  I
SALTION  
H1  
U
M2  
D1  
M19920  
H
OR  
M2  
Fig. 21. Remove tab labeled, Remove, on thermostat back  
V1  
N
POWERED  
VENTILATOR  
T2  
M23494  
Mount Thermostat to Wallplate  
1.  
Align the terminal screw blocks with the pins on the back  
of the thermostat. Push the thermostat straight onto the  
wallplate until it snaps into place. See Fig. 22.  
Fig. 19. Typical hookup of powered ventilation.  
1
2
3
C
WALLPLATE  
2
4 VAC  
R
RC  
RH  
PINS ON  
BACK OF  
THERMOSTAT  
FIELD INSTALLED  
JUMPER BETWEEN  
DHM 1 AND VNT 1  
H1  
U
M2  
TERMINAL  
SCREW  
BLOCK  
BLUE  
D1  
H
OR  
M2  
YELLOW  
V1  
N
DH90  
GREEN  
RED  
T2  
WHITE  
FRESH  
AIR  
DAMPER  
M23542  
M23495  
Fig. 22. Mount thermostat to wallplate.  
Fig. 20. Hookup of Honeywell DH90 with fresh air intake for  
ventilation.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
IMPORTANT  
Locate and Mount C7089U1006 Outdoor  
Erratic temperature readings from a sensor can occur  
as a result of any of the wiring practices described  
below. Avoid these practices to assure correct opera-  
tion. Use shielded cable to reduce interference if  
rerouting sensor wiring is not possible.  
Temperature Sensor (Optional)  
Mount the sensor where (see Fig. 23):  
cannot tamper with settings.  
there is good air circulation.  
it can measure true outdoor ambient temperature.  
surface is flat.  
wire distance between C7089U1006 and EIM is less than  
Be sure wires have a cable separate from the thermo-  
stat cable.  
Do not route temperature sensor wiring with building  
power wiring, next to control contactors or near light  
dimming circuits, electric motors or welding  
equipment.  
200 feet.  
Do not mount the sensor:  
in direct sunlight.  
Avoid poor wiring connections.  
Avoid intermittent or missing building earth ground.  
where hot or cold air blows on the sensor. Discharge line  
from an outdoor compressor unit, vent or fan causes  
inaccurate temperature readings.  
where snow, ice or debris can cover it.  
CAUTION  
Can cause electrical shock or equipment damage.  
Disconnect power supply before connecting wiring.  
Use the following steps to mount the sensor:  
Electrical Shock Hazard.  
1.  
.
Remove the sensor from the mounting clip.  
Mark the area on the location selected for mounting the  
sensor mounting clip.  
2
3.  
Mount the clip.  
Wiring must comply with applicable codes, ordinances and  
regulations:  
1.  
Wire C7089U1006 Outdoor Sensor to OUT1and OUT2  
terminals on the EIM. If leadwire provided is not long  
enough (60 in.), run a cable to a hole at C7089U1006  
location.  
a. Using color-coded, 18-gauge thermostat wire is  
recommended. For example of general wiring of  
C7089U1006, see Fig. 24.  
b. Pigtail wiring can be used.  
Mount C7089U1006 in its mounting clip.  
Plug wiring hole using nonhardening caulk or putty.  
2
3
.
.
1
WIRING HOLE  
C7089  
THROUGH  
STRUCTURE  
2
M7514  
Fig. 23. Typical locations for C7089U1006 Outdoor Sensor.  
Wire C7089U1006 Outdoor Sensor  
1
2
USE APPROPRIATE MOUNTING MEANS FOR THE  
TYPE OF STRUCTURE.  
CAUTION  
PLUG WIRING HOLE WITH NON-HARDENING CAULK  
OR PUTTY.  
M23525  
Electrical Interference (Noise) Hazard.  
Can cause erratic system operation.  
Keep wiring at least one foot away from large inductive  
loads such as motors, line starters, lighting ballasts and  
large power distribution panels.  
Fig. 24. Wire C7089U1006 Outdoor Sensor to the EIM.  
If an outdoor temperature sensor is installed, the thermostat  
displays the outside temperature in the lower right corner of the  
Home Screen.  
Use shielded cable to reduce interference when  
rerouting is not possible.  
9
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
YES  
FAN  
NO  
Inside  
Set To  
AUTO  
NO  
Following  
Schedule  
5 FEET  
(1.5 METERS)  
SYSTEM  
HEAT  
Outside  
NO  
AM  
SCHED  
HOLD  
CLOCK SCREEN MORE  
M4476  
M22453  
Fig. 25. Typical location for C7189U1005 Indoor Sensor.  
If thermostat is set to Auto Changeover System mode, press  
the More key until the outside temperature is shown on the  
screen.  
Wire C7189U1005 Indoor Sensor  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
CAUTION  
Electrical Interference (Noise) Hazard.  
Can cause erratic system operation.  
Keep wiring at least one foot away from large inductive  
loads such as motors, line starters, lighting ballasts and  
large power distribution panels.  
Outside  
IMPORTANT  
Erratic temperature readings from a sensor can occur  
as a result of any of the wiring practices described  
below. Avoid these practices to assure correct  
operation.  
SCHED  
H OO LL DD  
WAKE  
CLOCK SCREEN  
LEAVE RETURN SLEEP CANCEL  
DONE  
M22448  
Be sure wires have a cable separate from the thermo-  
stat cable.  
Do not route temperature sensor wiring with building  
power wiring, next to control contactors or near light  
dimming circuits, electric motors or welding equipment.  
Locate and Mount C7189U1005 Remote  
Indoor Temperature Sensor (Optional)  
1.  
2.  
3.  
Choose a location (see Fig. 25) for mounting the sensor  
on an inside wall about 5 ft (1.5m) above the floor.  
Be sure wire distance between C7189U1005 and EIM is  
less than 200 feet.  
— Avoid poor wiring connections.  
— Avoid intermittent or missing building earth ground.  
Make sure there is good air circulation at average tem-  
perature at the chosen location. Avoid the following loca-  
tions because they can introduce errors in sensor  
measurements. See Fig. 25.  
CAUTION  
Electrical Shock Hazard.  
Can cause electrical shock or equipment damage.  
Disconnect power supply before connecting wiring.  
a. Hot areas caused by:  
(
(
(
a)Concealed pipes or ducts.  
Wiring must comply with applicable codes, ordinances and  
regulations.  
b)Drafts from fireplaces or other heat sources.  
c)Convection or radiant heat from the sun or  
electrical equipment.  
1.  
Wire C7189U1005 Indoor Sensor to IN1and IN2 termi-  
nals on the EIM. For an example of general wiring of  
C7189U1005, see Fig. 26 to wire one sensor and Fig. 27  
to wire multiple sensors.  
b. Cold areas caused by:  
(a)Concealed pipes or ducts.  
(b)Drafts from windows and doors.  
(c)Unheated areas on the other side of the wall  
location.  
2.  
Push excess wire back into the hole. Plug the hole using  
nonhardening caulk, putty or insulation to prevent drafts  
from affecting performance.  
c. Dead air areas:  
(
(
a)Behind doors, furniture and curtains.  
b)In corners and alcoves.  
3
4
.
.
Remove C7189U1005 cover.  
Mount C7189U1005 to the wall using the screws and  
anchors provided.  
4
.
.
Mark the area on the wall selected for mounting the  
C7189U1005 Sensor.  
Run wire cable to a hole at the selected wall location.  
Pull approximately three inches of wire through the  
opening. Color-coded, 18-gauge thermostat wire is  
recommended.  
5
.
.
Level the C7189U1005 for appearance only. Device  
functions correctly even when not level.  
Install C7189U1005 cover.  
5
6
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
The thermostat will display the temperature measured at  
the sensor locations (internal thermostat sensor is  
disabled). Sensors must be in square numbers (e.g., 4, 9,  
C7189  
M23523  
L
16, and so on) and the displayed temperature will be an  
1
OUT  
average of the temperatures measured at each location.  
The thermostat will display a 50-50 average of the  
temperature measured at the thermostat location and the  
average of the temperatures measured at the remote indoor  
sensor locations. In this case, the thermostat sensor still  
carries a 50% weighting of the displayed temperature.  
2
OUT  
1
IN  
2
IN  
Fig. 26. Wiring a single C7189U1005 Indoor Sensor.  
Install Discharge Air Temperature Sensor  
(Optional):  
L
Prior to installing Discharge Air Temperature Sensor (DATS)  
refer to the installation instructions included with the product for  
more information on placement and wiring.  
1
OUT  
2
OUT  
1
IN  
C7189  
C7189  
C7189  
C7189  
2
IN  
When using a DATS with network zoning the DATS will monitor  
the duct air temperature and communicate with the thermostat  
and will disable the heating and/or cooling if installer set high or  
low temperature limits are reached.  
L
When using a DATS with an Equipment Interface Module the  
DATS is for testing only. When the installer is in any of the  
Installer Tests pressing the “More” button will display the  
temperature measured at the DATS. This allows the installer  
to view the temperature of each stage of heating and or  
cooling. The DATS will not be used for control and will not  
disable heating or cooling based on duct air temperature.  
1
OUT  
2
OUT  
1
IN  
C7189  
C7189  
C7189  
C7189  
C7189  
C7189  
C7189  
C7189  
C7189  
2
IN  
Set Calendar and Time  
Thermostat keeps current time and day for up to ten years  
under normal use after the calendar is set.  
When the thermostat is first powered, the display is ready to  
set the calendar and time.  
M23524  
NOTE: Calendar can also be set in the Installer Setup.  
Fig. 27. Wiring Multiple C7189U1005 Sensors.  
1
2
.
.
Press the arrow keys to set the year, month and day.  
Press the Done key.  
If a remote indoor temperature sensor is installed, the  
thermostat has several options for displaying the current indoor  
temperature. This is configured in ISU 340. The thermostat can  
display either the temperature measured at the thermostat  
location, the sensor location, or a 50-50 average of both.  
SET CURRENT DAY  
SET MONTH  
ONE REMOTE INDOOR SENSOR INSTALLED (OPTIONAL)  
If one remote indoor temperature sensor is used, based on  
configuration during installer setup, either of the following  
options are available:  
MM OO  
WE  
TH  
FR  
SA  
SU  
OK TO PICK MULTIPLE DAYS SCREEN LOCKED  
CHANGE FILTER UV LAMP  
The thermostat will display the temperature measured at  
the sensor location (internal thermostat sensor is disabled).  
The thermostat will display a 50-50 average of the  
temperature measured at the thermostat location and the  
remote indoor sensor location.  
DONE  
MULTIPLE REMOTE INDOOR SENSORS INSTALLED (OPTIONAL)  
If more than one remote indoor sensor is used, based on  
configuration during installer setup, either of the following  
options are available:  
USE ARROWS TO SET YEAR AND TIME  
M22424  
3
4
.
.
Press the arrow keys to set the current time.  
Press the Done Key.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
1.  
Press and release the System Key.  
USE ARROWS TO SET YEAR AND TIME  
THU  
MO  
WE  
TH  
FR  
SA  
SU  
FAN  
ON  
Inside  
AUTO  
SYSTEM  
EM HEAT  
Following  
Schedule  
OFF  
A
COOL  
M
Humidity  
SCHED HOLD CLOCK SCREEN  
DONE  
M22425  
M23498  
2.  
Press and hold the two blank keys on either side of the  
center blank key for approximately five seconds until  
screen changes.  
INSTALLER SETUP  
Auto Discover is available when the TH9421C thermostat is  
connected to an EIM. The EIM communicates information to  
the thermostat. Thermostat settings can be specified using the  
up and down arrow keys on the screen or set to Auto Discover.  
MO  
TU  
WE  
TH  
FR  
SA  
SU  
OK TO PICK MULTIPLE DAYS SCREEN LOCKED  
CHANGE FILTER UV LAMP  
Inside  
Set  
Using Auto Discover  
SYSTE  
M
EM  
Following  
Schedule  
Some Installer setups are defaulted to Auto Discover. If not  
defaulted, the installer can change the option to Auto Discover,  
however, it is always important that the installer verify that the  
auto discovered values are correct for the system that is  
present.  
HEAT  
OFF  
Humidity  
DONE  
CANCEL  
When using the thermostat with an equipment interface  
module, Auto Discover will discover factory default settings  
and will not receive communications as to proper system  
settings. The equipment interface module is preprogrammed at  
the factory as a one heat one cool product and the thermostat  
will “auto discover” those settings. The equipment interface  
module will be reprogrammed when the installer manually  
changes the configuration in the installer set up. It is not  
recommended to use Auto Discover with an equipment  
interface module.  
M23499  
3. Release the two blank keys when the screen on the ther-  
mostat matches the screen below.  
When using the VisionPRO® IAQ thermostat with a W8835  
zone panel, configure the zone panel, using the DIP switches  
on the panel, for the proper system settings. Enter the installer  
setup on each thermostat and assign zone numbers, and  
change the system settings (ISU 172–180) to Auto Discover  
(
E) then press the discover button on the zone panel. The zone  
panel will then communicate those settings back to the  
thermostats and the thermostats will automatically configure  
the ISU settings in Auto Discover, again it is important to verify  
that the auto discovered values are correct.  
DONE  
NOTE: When a VisionPRO® IAQ thermostat is being added  
to an existing zoning system with T8635 Thermostats  
the new VisionPRO® IAQ must be set up as the Zone  
One Thermostat (master zone controller), and can  
only be used with a W8835 zone panel.  
M22442  
Follow these steps to enter the Installer Setup:  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
4.  
See screen below to review how the thermostat keys are  
used during Installer Setup. See Table 3–4 for the  
Installer Setup Numbers and Settings.  
ADVANCE TO NEXT  
INSTALLER SETUP  
INSTALLER  
SETUP  
NUMBER  
CURRENT  
SETTING  
MON  
WED  
THU  
FRI  
SAT  
SUN  
DONE  
PRESS TO EXIT  
INSTALLER SETUP  
CHANGE THE  
CURRENT  
SETTING  
M22443  
5.  
Press the Done key to exit the Installer Setup screen.  
Table 3. Installer Setup Menu.  
ISU  
Parameter Installer Setup  
Settings  
(Factory Defaults Shown in Bold)  
Number  
Name  
Notes  
110  
Zone Number  
0
1
Not zoned  
Zone number  
Select zone number.  
Zone 0 = not zoned  
–9  
Zone 1 = master zone controller*  
Zone 2–9 = satellite thermostat*  
*
Only change if used with Envirazone Panel.  
1
20  
Date (Year  
Upper)  
20  
21  
Select first two digits of current calendar year (2006  
for example) - (2001-2178 available).  
USU  
1
30  
Date (Year  
Lower)  
01-99  
Default = 06  
Select last two digits of current calendar year (2006  
for example) - (2001-2178 available).  
USU  
1
40  
Date (Month)  
1-12  
Default = 06  
Select number that represents current  
calendar month.  
USU  
1
50  
Date (Day)  
1-31  
Default = 15  
Select number that represents current  
calendar date.  
USU  
1
60  
Schedule Options 4  
Seven-day programmable  
Non-programmable  
USU  
0
1
65  
Restore energy  
saving default  
schedule  
0
1
No  
Yes  
USU  
1
72  
System Selection 1  
Conventional  
Heat Pump  
Heat Only No Fan  
Auto Discover  
Selection of a specific system setting will  
automatically modify some default settings and/or  
hide other installer setup options that follow.  
2
3
E
1
1
73  
74  
Heat Pump Type  
0
Air to Air heat pump  
1
Geothermal heat pump  
Number of Cool/  
Compressor  
Stages  
1
0
2
E
1
Not shown if ISU172 = 3.  
none  
Conventional systems = number of cooling stages.  
Heat Pump systems = number of compressor  
stages.  
2
Auto Discover  
1
76  
80  
Number of  
1
0
2
1
Conventional systems = number of heating stages  
(maximum of 3).  
Conventional  
Heat or Heat  
none  
2
3
Heat Pump systems = number of auxiliary heat  
stages (maximum of 2).  
Pump Aux Stages 3  
E
Auto Discover  
1
Fan Operation  
Conventional  
heat only  
0
1
2
E
Gas or oil furnace equipment controls fan Only shown if ISU172 = 1 (conventional system).  
in heating Use 0 for fossil fuel systems (equipment controls  
fan).  
Electric furnace—thermostat controls fan in  
heating  
Use 1 for electric systems (thermostat controls fan).  
Use 2 if stage 1 is radiant heating and stage 2+ is a  
hot water fan coil.  
Equipment controls stage 1; thermostat  
controls stage 2+  
Auto Discover  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Table 3. Installer Setup Menu. (Continued)  
ISU  
Parameter Installer Setup  
Settings  
(Factory Defaults Shown in Bold)  
Number  
Name  
Notes  
Only shown if ISU172 = 2.  
190  
Reversing Valve  
O/B  
0
Changeover valve—O/B terminal is  
energized in cooling  
Changeover valve—O/B terminal is energized  
in heating  
1
2
00  
Back-up Heat  
E
Auto Discover  
Electric backup heat  
Fossil fuel backup heat  
Only shown if ISU172 = 2 and ISU176 = 1 or  
greater.  
Source Applies to 0  
both Aux and  
EmHeat  
1
210  
220  
230  
240  
External Fossil  
Fuel Kit  
1
External Fossil Fuel kit controls backup  
heat*  
*Cannot control dual fuel when used with W8835  
Envirazone Panel.  
0
Thermostat controls backup heat  
Only shown if ISU172 = 2 and ISU200 = 1.  
CPH for 1st  
Stage Cool/  
Compressor  
1-6  
3—cph recommended for compressors  
1, 2, 4, 5, 6—other cycle rate settings  
Auto Discover  
E
CPH for 2nd  
Stage Cool/  
Compressor  
1-6  
3—cph recommended for compressors  
1, 2, 4, 5, 6—other cycle rate settings  
Auto Discover  
Only shown if ISU174 = 2.  
E
CPH for 1st  
Stage  
Conventional  
Heat or Auxiliary  
1-12  
1—1 cph used for steam and gravity  
Only shown if ISU172 = 2 and ISU176 = 1 or higher.  
3—3 cph used for hot water system and high Default varies based on types of heating.  
efficiency (90% or better) furnaces  
5—5 cph used for standard fossil fuel forced  
air (less than 80% efficient) systems  
9
—9 cph used for electric furnaces  
2
, 4, 6, 7, 8, 10, 11, 12—other cycle rate  
settings  
Auto Discover  
E
250  
CPH for 2nd  
Stage  
Conventional  
Heat or 2nd  
Stage Auxiliary  
1-12  
1—1 cph used for steam and gravity  
3—3 cph for hot water systems and high  
efficiency (90% or better) furnaces  
5—5 cph for standard fossil fuel forced air (less  
than 90% efficient) systems  
Only shown if ISU176 = 2 or for Heat Pump systems  
with 2 stages of Auxiliary Heat.  
Default varies based on types of heating.  
9
—9 cph used for electric furnaces or electric  
auxiliary heat for heat pump systems  
2
, 4, 6, 7, 8, 10, 11, 12—other cycle rate  
settings  
E
Auto Discover  
260  
CPH for 3rd  
Stage Heat  
1-12  
1—1 cph used for steam and gravity  
3—3 cph for hot water systems and high  
efficiency (90% or better) furnaces  
Only shown if ISU176 = 3.  
Default varies based on types of heating.  
5
—5 cph for standard fossil fuel forced air (less  
than 90% efficient) systems  
—9 cph used for electric furnaces or electric  
auxiliary heat for heat pump systems  
9
2
, 4, 6, 7, 8, 10, 11, 12—other cycle rate  
settings  
E
Auto Discover  
2
70  
80  
CPH for  
9
Default  
Emergency Heat 1-12  
Only shown if heat pump is selected.  
2
USU  
Continuous  
Backlight  
0
Backlight not on continuously. Thermostat If backlight is on continuously, it is low-intensity.  
backlight comes on with each key press. Light changes to full brightness after pressing any  
key.  
1
Backlight is on continuously.  
3
00  
Changeover  
Deadband  
0
Manual  
Auto Changeover allows user to choose heat, cool,  
off or auto. When set to Auto the thermostat will  
automatically choose heat or cool based on room  
temperature and heat/cool set points. Manual  
changeover allows the user to manually toggle  
between heat, cool and off.  
1
Auto  
3
10  
3
2
4
5
6
7
8
9
2.0 3°F  
2.0°C  
1.5°C  
2.5°C  
3.0°C  
3.5°C  
4.0°C  
4.5°C  
5.0°C  
Only shown if ISU300 = 0. The deadband indicates  
the minimum number of degrees that are allowed  
between the heat and cool settings when in auto  
changeover. For example, if the deadband is set to  
1.5 2°F  
2.5 4°F  
3.0 5°F  
3.5 6°F  
4.0 7°F  
4.5 8°F  
5.0 9°F  
3
°F and the cool setpoint is 75°F the warmest heat  
setpoint allowed would be 72°F.  
Note: degrees C is not same as degrees F  
3
20  
Temperature  
Indication Scale  
0
1
Fahrenheit temperature display  
Celsius temperature display  
USU  
3
30  
Daylight Saving  
2
0
1
Enabled (US 2007)  
Disabled  
Enabled (US 1987)  
Set to 0 in areas that do not follow daylight savings  
time.  
USU  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Table 3. Installer Setup Menu. (Continued)  
ISU  
Parameter Installer Setup  
Settings  
(Factory Defaults Shown in Bold)  
Number  
Name  
Notes  
340  
Indoor Temp  
Sensor  
0
1
2
Thermostat location only  
Remote indoor sensor(s) location(s) only  
Average between thermostat and sensor  
locations  
Indoor temperature sensors will display the  
temperature at the sensor location or an average of  
two indoor temperature sensors, not including the  
temperature sensor in the thermostat. The  
temperature sensor in the thermostat is disabled  
when using remote indoor temperature sensor(s).  
3
42  
Outdoor Temp  
Sensor  
E
0
1
Auto Discover  
None  
Yes  
An outdoor temperature sensor is required for heat  
pump compressor lockout (ISU350), heat pump  
auxiliary lockout (ISU360), dual fuel heat pump  
balance point (ISU360) and Humidification with  
Frost Protection (ISU372).  
3
45  
46  
Dual Fuel Heat  
Pump Control  
1
0
2
Droop Control  
See Dual Fuel Heat Pump control on page 23.  
No Droop Control  
Droop Control with Auxiliary heat lockout  
3
Dual Fuel Heat  
1
1 hr.  
See Dual Fuel Heat Pump control on page 23.  
Pump Upstage to 0  
Furnace Timer (in 0.5  
Disabled  
0.5 hrs.  
1.5 hrs.  
2 hrs.  
hours)  
1.5  
2
3
3 hrs.  
4
4 hrs.  
5
5 hrs.  
6
6 hrs.  
8
8 hrs.  
1
1
1
1
0
2
4
6
10 hrs.  
12 hrs.  
14 hrs.  
16 hrs.  
3
3
47  
50  
Droop  
2
3
4
5
2°F  
1.0°C  
1.5°C  
2.0°C  
2.5°C  
The fossil fuel will turn on when the outdoor  
temperature is above the balance point if the room  
temperature droops below the selected droop  
temperature setting, and the compressor will be  
disabled.  
Temperature  
3°F  
4°F  
5°F  
Heat Pump  
Balance Point  
40  
0
5
4.5 40°F  
4.5°C  
Only shown for heat pump applications with an  
outdoor temperature sensor present.  
If electric backup is selected then the default is No  
Compressor lockout.  
No heat pump compressor lockout  
(
also compressor  
-15 5°F  
-15.0°C  
-12.0°C  
-9.5°C  
-6.5°C  
-4.0°C  
-1.0°C  
1.5°C  
lockout)  
10  
15  
20  
25  
30  
35  
45  
50  
55  
60  
-12 10°F  
-9.5 15°F  
-6.5 20°F  
-4 25°F  
-1 30°F  
1.5 35°F  
45°F  
10 50°F  
13 55°F  
Temperature  
7
7.0°C  
10.0°C  
13.0°C  
15.5°C  
15.5 60°F  
(
Show 1/2 degree C)  
3
60  
Heat Pump  
Auxiliary Heat  
Lockout  
0
5
1
1
2
2
3
3
4
4
5
5
6
6
No heat pump auxiliary lockout  
Only shown for heat pump applications with an  
outdoor temperature sensor present.  
-15 5°F  
-15.0°C  
-12.0°C  
-9.5°C  
-6.5°C  
-4.0°C  
-1.0°C  
1.5°C  
0
5
0
5
0
5
0
5
0
5
0
5
-12 10°F  
-9.5 15°F  
-6.5 20°F  
-4 25°F  
-1 30°F  
1.5 35°F  
4.5 40°F  
Temperature  
4.5°C  
7
45°F  
7.0°C  
10 50°F  
13 55°F  
15.5 60°F  
18.5 65°F  
10.0°C  
13.0°C  
15.5°C  
18.5°C  
(
Show 1/2 degree C)  
3
3
3
65  
66  
67  
Discharge Temp  
Sensor  
E
0
1
Auto Discover  
None  
Remote  
Zoning High  
Temperature  
Limit  
160  
160°F (71°C)  
Disabled  
110°F to 170°F (43.5°C to 76.5°C)  
Only Shown if ISU110 = 1 (Master Zone Controller)  
and Discharge Temperature Sensor is available.  
0
110–170  
Zoning Low  
Temperature  
Limit  
40  
0
35-50  
160°F (71°C)  
Disabled  
35°F to 50°F (1.5°C to 10°C)  
Only Shown if ISU110 = 1 (Master Zone Controller)  
and Discharge Temperature Sensor is available.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Table 3. Installer Setup Menu. (Continued)  
ISU  
Parameter Installer Setup  
Settings  
(Factory Defaults Shown in Bold)  
Number  
Name  
Notes  
3
3
3
68  
Staging  
110  
0
110°F (43.5°C)  
Only Shown if ISU110 = 1 (Master Zone Controller)  
and ISU174 = 2 or more. Must have Discharge  
Temperature Sensor present.  
Discharge  
Temperature  
High Limit  
Disabled  
80-130  
80°F to 130°F (26.5°C to 54.5°C)  
69  
70  
Staging  
55  
0
50-60  
55°F (13°C)  
Disabled  
50°F to 60°F (10°C to 15.5°C)  
Only Shown if ISU110 = 1 (Master Zone Controller)  
and ISU176 = 2. Must have Discharge Temperature  
Sensor present.  
Discharge  
Temperature  
Low Limit  
Indoor Humidity  
Sensor  
1
0
2
E
Internal—sensor in thermostat  
Disabled  
Remote  
Auto Discovered  
If there is a remote sensor installed and the setting  
is either auto discover or “remote” the internal  
thermostat humidity sensor is disabled. If set to  
“internal” the internal thermostat sensor is  
presented on the screen. If set to “disabled” the  
internal sensor and any remote sensors are  
disabled, there will be no humidity displayed and will  
have no humidification/dehumidification control.  
3
72  
74  
Indoor  
E
0
1
3
8
Auto Discover  
Humidification  
Control  
Off  
Shown only if ISU370 = 1, 2 or E.  
Humidify (no frost protection)  
Humidify (with frost protection)  
Desert Humidity Control on heat, cool, and off * DATS required for Desert Humidification  
(
no frost protection)*  
Desert Humidity Control on heat, cool, and off  
with frost protection)*  
9
(
3
Hum Fan Action  
0
1
2
3
Humidify only while fan or heat is on  
Humidify will force fan on  
Setting 0 will run the humidifier only during a call for  
heat or if the fan is running.  
Setting 1 will force the fan to run if there is a call for  
humidification.  
Humidify only when heat is on  
Humidifier operates independent of fan  
Setting 2 will humidify only during a call for heat.  
Setting 3 assumes the humidifier has it own internal  
fan and will not require the system fan or heat to be  
operating during a call for humidification.  
3
3
79  
82  
Dehumidification  
Control  
0
1
3
None  
Option 1 uses dehum terminal as a normally closed  
relay to wire to a low-speed fan terminal.  
Option 3 uses dehum terminal as a normally open  
relay to wire to a whole-house dehumidifier.  
Dehumidify with Air Conditioning  
Whole house Dehumidifier  
Dehumidification  
system modes  
0
2
3
Dehumidifier in Cool or Auto (when last call  
was for cooling)  
Dehumidifier in Cool, Off, Heat, EmHeat, or  
Auto  
Dehumidifier in Cool, Off, or Auto (when last  
call was for cooling)  
3
83  
Over-Cooling  
Limit  
3
1
2
1.5 3°F  
0.5 1°F  
1.0 2°F  
1.5°C  
0.5°C  
1.0°C  
Only shown if ISU379 = 1.  
Only shown if ISU379 = 3.  
(
Show 1/2 degree C)  
3
3
3
3
84  
86  
90  
91  
Dehumidification  
Fan Action  
0
1
System fan turns on with dehumidifier  
Dehumidifier operates independent of system  
fan  
Whole house  
dehumidification  
lockout  
0
1
Disabled  
Enabled  
Southern  
Dehumidification  
Away Mode  
0
1
No  
Yes  
Not shown if ISU379 = 0.  
ISU 391-394 will only be shown if ISU390 = 1.  
Southern  
0
1
2
Fan Auto  
Fan On  
Fan Circulate  
If ISU391 = 1 or 2 to help remove condensation  
from the air handler and the A-coil, some humidity  
may be re-introduced into the living space.  
Dehumidification  
Away Mode Fan  
Setting  
3
92  
93  
Southern  
76  
Default = 76°F  
The air conditioner will be allowed to cool the living  
space to this temperature to meet the humidity  
setting that set in ISU394.  
Dehumidification 70-80  
Away Mode Low  
Limit  
70°F–80°F  
Temperature  
Setting  
3
Southern  
85  
Default = 85°F  
70°F–99°F  
The A/C will maintain this temperature provided the  
humidity setting is satisfied. This temperature  
setting can not be set lower than the temperature  
set in ISU 392.  
Dehumidification 70-99  
Away  
Temperature  
Setting  
6
8-0287—04  
16  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Table 3. Installer Setup Menu. (Continued)  
ISU  
Parameter Installer Setup  
Settings  
(Factory Defaults Shown in Bold)  
Number  
Name  
Notes  
3
94  
Southern  
65  
Default = 65%  
40%–70% relative humidity  
Set the desired humidity level to maintain within the  
living space  
Dehumidification 40-70  
Away  
Dehumidification  
Setting  
400  
Ventilation control 0  
No ventilation  
If ISU300 = 0, ISU401-405 will not be shown.  
1
2
3
4
Ventilation on at all times  
Ventilation on except during sleep period  
Vent all with lockouts  
Not ASHRAE  
Not ASHRAE  
Vent off sleep with lockouts  
401  
402  
403  
404  
Number of  
bedrooms  
2
Default = 2  
1-6  
1–6 bedrooms  
Total house  
Sq. Ft.  
10  
10-50  
Default = 1000 sq. ft.  
1000–5000 sq. ft. in increments of 100  
Ventilation CFM 160  
Default = 160 CFM  
30–195 CFM in increments of 5  
30-195  
Max ventilation  
percentage limit 30-60  
50  
Default = 50%  
30%–60%  
unlimited  
The thermostat will determine if ventilation is  
meeting ASHRAE standard 62.2. The display will  
show a P above the setup number if the setting  
passes the ASHRAE standard, or F if it does not.  
Best practice is to move the setting down until F is  
displayed, then move up one setting to the minimum  
passing value.  
1
00  
4
05  
06  
Ventilation Fan  
Action  
1
Vent on will force fan on also  
2
Vent will not force fan ON  
4
Ventilation in  
High Humidity  
1
0
On  
Off  
Only shown if ISU372 and ISU400 are not set to 0.  
When set to On will use ventilation to remove  
humidity when thermostat is in the heat mode.  
4
30  
31  
Ventilation  
lockout  
0
1
2
3
Disabled  
Outdoor temperature sensor required for high and  
low temperature lockouts.  
Lockout for high temperatures  
Lockout for low temperatures  
Lockout for high and low temperatures  
4
Ventilation  
lockout high  
temperature  
100  
38 100°F  
32 90°F  
35 95°F  
40.5 105°F  
43.5 110°F  
38°C  
32°C  
35°C  
40.5°C  
43.5°C  
9
9
1
0
5
05  
110  
4
32  
50  
Ventilation  
lockout low  
temperature  
-10  
-23.5 -10°F  
-29 -20°F  
-26 -15°F  
-20.5 -5°F  
-18 0°F  
-23.5°C  
-29.0°C  
-26.0°C  
-20.5°C  
-18.0°C  
-
-
-
-
20  
15  
5
0
4
DATS Inhibit  
0
3
4
4
5
5
6
6
Disabled  
1.5 35°F  
4.5 40°F  
The DATS will cycle the cooling off at the selected  
temperature to prevent coil freezing.  
5
0
5
0
5
0
5
1.5°C  
4.5°C  
7.0°C  
10.0°C  
13.0°C  
15.5°C  
18.5°C  
7
45°F  
10 50°F  
13 55°F  
15.5 60°F  
18.5 65°F  
5
00  
Furnace Filter  
Change  
Reminder  
E
0
1
2
3
4
5
6
7
8
9
Auto Discover  
Disabled  
USU  
10 R.T. Days  
30 R.T. Days  
60 R.T. Days  
90 R.T. Days  
120 R.T Days  
180 R.T. Days  
270 R.T. Days  
365 R.T. Days  
30 C Days  
1
0
60 C Days  
90 C Days  
120 C Days  
180 C Days  
365 C Days  
1
1
1
1
1
2
3
4
5
02  
Furnace filter  
0
Counts runtime Heat and Cool  
Counts runtime Cool only  
reminder run time 1  
equipment counts  
17  
68-0287—04  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Table 3. Installer Setup Menu. (Continued)  
ISU  
Parameter Installer Setup  
Settings  
(Factory Defaults Shown in Bold)  
Number  
Name  
Notes  
5
10  
Humidifier Pad  
Replacement  
Reminder  
E
0
1
2
3
Auto Discover  
Display will show Calendar Days if ISU372 = 0; Run  
Time Days if ISU372 = 1 or 3.  
USU  
Disabled  
90 C Days or 30 R.T. Days  
180 C Days or 60 R.T. Days  
365 C Days or 90 R.T. Days  
5
20  
UV Lamp  
Replacement  
Reminder  
E
0
1
2
Auto Discover  
Disabled  
USU  
365 Days  
730 Days (2 years)  
5
30  
Adaptive  
Intelligent  
Recovery  
1
0
Adaptive  
Conventional  
See Temperature Recovery on page 32.  
USU  
5
40  
Number of  
Periods  
4
2
4 Periods  
2 Periods  
4 periods = Wake, Leave, Return, and Sleep  
2 periods = Wake and Sleep  
USU  
550  
560  
580  
Number of  
Periods:  
4
4 Periods  
2
2 Periods  
Weekdays  
Number of  
Periods:  
Weekend Days  
4
2
4 Periods  
2 Periods  
Min Compressor  
Off Time  
5
0
1
2
3
4
5 minutes  
Off  
1 minute  
2 minutes  
3 minutes  
4 minutes  
6
6
6
00  
10  
40  
Heat Temp  
90  
Default = 90°F  
Range Stops  
40-90  
40°F–90°F (Show 1/2 degree C)  
Cool Temp  
Range Stops  
60  
60-99  
Default = 60°F  
60°F–99°F (Show 1/2 degree C)  
Clock Format  
12  
24  
12 Hour  
24 Hour  
USU  
6
6
6
50  
60  
70  
Extended Fan on 0  
time Heat (Blower 30  
Off Delay Heat) 60  
Off  
30 seconds  
60 seconds  
90 seconds  
120 seconds  
9
1
0
20  
Extended Fan on 0  
time Cool (Blower 30  
Off Delay Heat) 60  
Off  
This can be used to remove condensation from A-  
coil; however, could re-introduce humidity into the  
living space.  
30 seconds  
60 seconds  
90 Seconds  
120 Seconds  
9
1
0
20  
Keypad Lockout  
0
1
2
Unlocked  
Partial Locked  
Full Locked  
USU  
680  
690  
700  
Temp Control  
Heat  
2
Standard (recommended)  
Less Aggressive temp control (may cause  
temp undershoot)  
1
3
More Aggressive temp control (may cause  
temp overshoot)  
Temp Control  
Cool  
2
1
Standard (recommended)  
Less Aggressive temp control (may cause  
temp undershoot)  
More Aggressive temp control (may cause  
temp overshoot)  
3
Temperature  
Display Offset  
0
0°F  
0 °C — (no difference in  
displayed temperature and actual room  
temperature)  
-
-
-
3
-3°F  
-2°F  
-1°F  
1°F  
-1.5°C  
-1°C  
-.5°C  
.5°C  
2
1
1
2
3
2°F  
1°C  
3°F  
1.5°C  
6
8-0287—04  
18  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Table 3. Installer Setup Menu. (Continued)  
ISU  
Parameter Installer Setup  
Settings  
(Factory Defaults Shown in Bold)  
Number  
Name  
Notes  
7
01  
Humidity Display  
Offset  
0
0%  
-12  
-12%  
-11%  
-10%  
-9%  
-8%  
-7%  
-6%  
-5%  
-4%  
-3%  
-2%  
-1%  
1%  
-
-
-
-
-
-
-
-
-
-
-
11  
10  
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
1
2%  
3%  
4%  
5%  
6%  
7%  
8%  
9%  
0
10%  
11%  
12%  
1
1
1
2
710  
Restore Factory  
Defaults  
0
1
No  
Yes  
Restoring factory defaults will re-set installer setup  
and programming.  
INSTALLER SYSTEM TEST  
SYSTEM TEST  
NUMBER  
SYSTEM STATUS  
NUMBER  
UP ARROW  
TURNS THE  
SYSTEM ON  
Use the Installer System Test to test the heating, cooling and  
fan (and emergency heat for heat pump systems).  
CAUTION  
Equipment Damage Hazard.  
Minimum compressor off time is bypassed during  
Installer System Test  
Avoid cycling compressor quickly.  
DONE  
How to Use the Installer System Test  
The Installer Test is part of the Installer Setup Menu.  
1
2
3
.
.
.
Enter the Installer System Test by entering the Installer  
Setup.  
Note that the test appears at the end of the Installer  
DONE KEY  
EXITS INSTALLER ADVANCES TO  
SYSTEM TEST  
NEXT SYSTEM  
TEST NUMBER  
UP ARROW KEY  
DOWN ARROW  
TURNS THE  
SYSTEM OFF  
M22428  
Setup Numbers.  
See Fig. 28 to review how the thermostat buttons are  
used during the Installer System Test. See Table 6 for  
available Installer System Tests.  
Fig. 28. Review thermostat buttons used during Installer  
System Test.  
4.  
If installed with a Discharge Air Temperature Sensor  
(
ISU365=1) press the “MORE” button to view the dis-  
charge temperature, and press Cancel to return to the  
Installer test screen.  
19  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Installer System Tests  
Table 4. Installer System Test.  
System Test Number  
Test 1  
Test Type  
ISU Value  
System Status Number and Description  
Off  
Cool Stage 1  
Installer Test Cool  
0
1
2
Cool Stages 1 & 2  
Test 2  
Test 3  
Installer Test Fan  
Installer Test Heat  
0
1
Off  
Fan On  
0
1
2
3
4
Off  
Heat Stage 1  
Heat Stages 1, 2  
Heat Stages 1,2,3  
Heat Stages 1,2,3,4  
Test 4  
Emergency Heat Test  
0
1
2
Off  
AUX Heat Stage 1  
AUX Heat Stages 1 and 2  
Test 5  
Test 6  
Test 7  
Err  
Installer Test Humidifier  
Installer Test Dehumidifier  
Installer Test Ventilator  
Diagnostic Recall  
0
1
Off  
Humidifier On  
0
1
Off  
Dehumidifier On  
0
1
Off  
Ventilator On  
00-99  
See “Communication Error Codes” on page 35  
Press the Next button to go to the beginning of the Installer Setup or press the Done button to exit the Installer System Test.  
When VisionPRO® IAQ is used in a zoning system you must exit the installer test on one thermostat before entering the installer  
test on another thermostat.  
OPERATION  
Thermostat Display  
TUE  
INSIDE TEMPERATURE  
SHOWS THE CURRENT INSIDE  
TEMPERATURE  
SHOWS CURRENT DAY  
OF THE WEEK  
Thermostat Keys  
FAN  
SET TO  
SYSTEM  
DOWN ARROW  
LOWERS TEMPERATURE  
SETTING  
SHOWS FAN  
SETTING  
TEMPERATURE  
SELECTS EM.  
SHOWS THE  
CURRENT SET  
TEMPERATURE  
HEAT/HEAT/OFF/COOL  
FAN  
UP ARROW  
RAISES  
TEMPERATURE  
SETTING  
SELECTS  
ON/AUTO/CIRC  
TU  
FAN  
TUE  
Inside  
Set To  
AUTO  
FAN  
Inside  
Set To  
Following  
Schedule  
SYSTEM  
AUTO  
Following  
Schedule  
SYSTEM  
HEAT  
A
M
HEAT  
Humidity  
AM  
SCHED HOLD CLOCK SCREE MORE  
Humidity  
SCHED  
HOLD  
CLOCK SCREEN MORE  
SYSTEM  
SHOWS  
CURRENT  
SYSTEM  
POSITION  
TIME  
FOLLOWING  
SCHEDULE  
SHOWS THE  
THERMOSTAT IS  
FOLLOWING THE  
PROGRAMMED  
SCHEDULE  
DISPLAY CURRENT  
TIME OF DAY, HOLD  
TIME REMAINING OR  
NUMBER OF VACATION  
DAYS REMAINING  
SCHED  
CLOCK  
SETS THE  
TIME  
FORWARD  
OR BACK  
MORE  
ENTERS  
SCHEDULING  
MODE  
SHOWS ADDITIONAL  
ACCESSORY AND  
MAINTENANCE  
OPTIONS  
HOLD  
M23501  
SCREEN  
SETS A PERMANENT  
HOLD AND ACTIVITIES  
VACATION HOLD  
LOCKS OUT THE  
SCREEN TO ALLOW  
FOR CLEANING  
M23500  
6
8-0287—04  
20  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
1.  
2.  
3.  
Press the More key until the inside humidity level set-  
point is shown.  
Use Up and Down arrow keys, located to the right of the  
humidity setpoint, to set desired humidity level.  
Press Done key.  
System and Fan Settings  
System  
The System key selections vary based on your heating and/or  
cooling system type.  
Control Dehumidification Level  
Heat — Thermostat controls the heating system.  
Off — Both heating and cooling systems are off.  
Cool — Thermostat controls the cooling system.  
®
The VisionPRO IAQ Touchscreen Thermostat reads the  
inside humidity level and allows for a dehumidification setting,  
and can be set to dehumidify using the air conditioner or a  
whole house dehumidifier.  
Auto — Thermostat automatically changes between heating  
and cooling operation, depending on indoor temperature.  
CURRENT  
INDOOR  
Em. Heat — Emergency heat cycles to maintain temperature.  
Compressor is locked out and auxiliary heat turns on as  
needed.  
HUMIDITY  
Fan  
The Fan key selections vary based on the heating and/or  
cooling system type.  
Inside  
DEHUMIDIFIER  
On — Fan runs continuously. Use this setting for improved air  
circulation or for more efficient central air cleaning.  
Auto — fan follows the fan program schedule.  
Circ — fan runs randomly approximately 35% of the time. Use  
this setting for improved air circulation or for more efficient  
central air cleaning when you do not want the fan running  
continuously.  
Humidity  
MORE  
DONE  
CANCEL  
DEHUMIDIFIER  
SETTING  
HUMIDITY SET  
POINT  
Control Humidification Level  
(AUTO/OFF)  
M23496  
The VisionPRO® IAQ Touchscreen Thermostat reads the  
inside humidity level and allows for a humidification setting with  
or without frost protection.  
With Air Conditioner  
The set range for dehumidification is 40 to 80%, and can be set  
in 5% increments. The thermostat must be in Cool mode or  
Auto mode when the previous call was a call for cooling.  
WITH FROST PROTECTION  
Controlling humidification with frost protection requires an  
outdoor temperature sensor. The Frost Index (scale 1–10) will  
limit the amount of humidity added to the air based on outdoor  
temperature, with 1=most dry and 10=most humid. This  
prevents frost from accumulating on windows.  
Inside  
Inside  
DEHUMIDIFIER  
FROST  
DEHUMIDIFIER  
Humidity  
DONE  
CANCEL  
M23514  
MORE  
DONE  
CANCEL  
M23518  
Dehumidifying in this manner runs the air conditioner longer  
than simply cooling the house would require, and can be set to  
run 1, 2, or 3°F below the temperature setpoint. This feature is  
called Dehumidification Droop Control.  
WITHOUT FROST PROTECTION  
The frost setpoint is not displayed, but a humidity setpoint can  
still be set.  
NOTE: You must use this setting if:  
No powered, whole house dehumidifier is present,  
and  
The system uses the air conditioner as the  
dehumidifier.  
21  
68-0287—04  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
DEHUMIDIFICATION DROOP CONTROL  
In extremely high humidity conditions, the thermostat keeps  
the air conditioner running (energizing Y/Y2 and G) for up to  
3
°F below the temperature setpoint. It does this while trying to  
achieve the desired humidity setpoint and balancing that with  
the temperature setpoint. The thermostat controls up to 3° F  
below the temperature setting until either the humidity setpoint  
is satisfied or conditions change.  
With Whole House Dehumidifier  
Controls humidity levels in the house by dehumidifying without  
the use of the air conditioner. This setting requires a dedicated  
unit for dehumidification. Dehumidification with a whole house  
dehumidifier will take place when the thermostat is in the Cool,  
Off, Auto, Heat or Em.Heat modes. If the system is installed  
with a whole house humidifier, dehumidification with a whole  
house dehumidifier will only take place when the thermostat is  
in Cool, Off or Auto modes (Auto only if the previous call was a  
call for cooling).  
DONE  
M23520  
Ventilation occurs two ways:  
AUTOMATIC  
Uses installer setup to determine amount of ventilation  
required based on house and equipment size. To disable  
automatic ventilation, switch the ventilation setting to Off. The  
user can still use the timer to request ventilation.  
When controlling a whole-house dehumidifier the user can  
toggle between auto (dehumidify when needed based on  
setpoint and current humidity level) and off (see Fig. 29).  
ON DEMAND  
User can also set a vent timer that will circulate fresh air into  
the home for a set period of time from 20 to 180 minutes in 20-  
minute increments. The vent timer is enabled whether  
ventilation is set to “Auto” or “Off.”  
Inside  
DEHUMIDIFIER  
Humidity  
MORE  
DONE  
CANCEL  
M23515  
VENT  
Fig. 29. Display when controlling a whole-house  
dehumidifier.  
Minutes  
MORE  
1
.
.
Press the More key until the inside humidity percent and  
dehumidification setpoint are shown.  
Use Up and Down arrow keys, located to the right of the  
dehumidifier setpoint, to set desired humidity level for  
dehumidification in the summer.  
DONE  
CANCEL  
M23519  
2
VENTILATION IN HIGH HUMIDITY CONDITIONS (SETUP FUNCTION 0406)  
If Ventilation Control is available (setup function 0400 set to 1  
or 2), this allows the ventilation equipment to turn on if the  
humidity rises approximately 10% above the RH setting in  
heating mode to exhaust the extra humidity.  
3
.
Press Done key.  
Ventilation Control  
Ventilation setup options include ISUs 400, 401, 402, 403, and  
04. Combined, these will determine a percentage of  
4
maximum ventilation limit. The thermostat will calculate  
whether or not this level of ventilation meets ASHRAE  
standard 62.2. If ASHRAE 62.2 is met a P will appear in the  
display above the setup number. If ASHRAE 62.2 is not met an  
F will appear in the display above the setup number.  
HEAT PUMP OPERATION  
Heat Pump LED Indication  
A red LED indication is located in the upper right corner of the  
thermostat. It is only visible when lighted.  
Passing ASHRAE 62.2 is only applicable when vent is running.  
For example, if installer has set to not vent during sleep period,  
ASHRAE 62.2 would be met at all times except during sleep  
period.  
When the L terminal is wired to an equipment monitor, the LED  
signals when a check or fail signal is sent to the thermostat  
from the system. This is operational in the Heat, Off, Cool or  
Auto positions.  
6
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Heat Pump Emergency Heat LED Indication  
Balance Point/Auxiliary Heat Lockout Plus Droop  
(ISU 345 = 2)  
The thermostat uses a red LED indicator that lights when the  
thermostat is in the Emergency Heat mode. The LED is located  
in the upper right corner of the thermostat. It is visible only  
when on.  
When the outdoor temperature is above the Auxiliary Heat  
Lockout Temperature only the compressor operates; below the  
balance point temperature (setup function 0360) only the fossil  
fuel operates. Between the balance point temperature and  
auxiliary heat lockout temperature the compressor will operate.  
However, the fossil fuel will turn on if the room temperature  
droops below the selected droop temperature setting,  
compressor will be disabled.  
Heat Pump Temperature Lockouts  
Dual Fuel Heat Pump and Outdoor Temperature  
Sensor  
In this operation, there is no external fossil fuel kit (dual fuel kit)  
installed; the thermostat controls this function.  
COMPRESSOR ONLY  
AUX.  
5
0
1.  
2.  
3.  
4.  
5.  
Choose correct heat pump application in Installer Setup  
Number 0172.  
Choose Fossil Fuel Option as the backup heat source  
in Installer Setup Number 0200.  
Choose No External Fossil Fuel Kit Option is control-  
ling back up heat in Installer Setup Number 0210.  
Choose Outdoor Temperature Sensor for Heat Pump  
Temperature Lockouts in Installer Setup Number 0342.  
Choose appropriate Balance Point Temperature in  
Installer Setup Number 0350.  
LOCKOUT  
COMPRESSOR+2 °F  
DROOP UPSTAGE TO  
FURNACE  
BALANCE  
POINT  
3
5
FURNACE ONLY  
M23497  
Fig. 31. Balance Point with Auxiliary Lockout Temperature.  
Dual Fuel Heat Pump Control  
AUXILIARY LOCKOUT FOR ELECTRIC HEAT BACKUP  
Heat Pump systems with electric heat backup can select a  
compressor lockout temperature (function 0350) and/or  
auxiliary heat lockout temperature (function 0360). When the  
outdoor temperature is below the compressor lockout  
temperature, only the auxiliary heat operates. When the  
outdoor temperature is between the compressor and auxiliary  
lockout temperatures, both the compressor and auxiliary heat  
can operate.  
Balance Point Only (ISU345 = 0)  
NOTE: System must have an outdoor temperature sensor.  
When the outdoor temperature is above the selected balance  
point temperature, only the compressor operates and the fan  
(G terminal) energizes when the thermostat calls for heat. See  
Fig. 30. When the outdoor temperature is below the selected  
balance point temperature, only the fossil fuel (auxiliary heat)  
operates and the fan (G terminal) does not energize when the  
thermostat calls for heat.  
NOTE: System must have an outdoor temperature sensor.  
Heat Pump with Electric Auxiliary (Backup) Heat and  
Outdoor Temperature Sensor  
1.  
2.  
3.  
4.  
5.  
Choose correct heat pump application in Installer Setup  
Number 0172.  
Choose Electric as Auxiliary (Backup) Heat Source in  
Installer Setup Number 0200.  
Choose Outdoor Temperature Sensor in Installer  
Setup Number 0342.  
Choose Compressor Lockout Temperature in Installer  
Setup Number 0350.  
Choose Auxiliary Lockout Temperature in Installer  
COMPRESSOR ONLY  
BALANCE  
POINT  
3
0
FOSSIL FUEL ONLY  
M22441  
Setup Number 0360.  
Fig. 30. Dual Fuel Heat Pump Operation in Heat mode with  
Balance Point Set.  
NOTE: There is a 5°F deadband between the Compressor  
and Auxiliary Heat Lockout Temperatures.  
Balance Point Plus Droop (ISU345 = 1)  
Operation in Heat Mode  
The fossil fuel will turn on when the outdoor temperature is  
above the balance point if the room temperature droops below  
the selected droop temperature setting, and the compressor  
will be disabled.  
When the outdoor temperature is below the Compressor  
Lockout Temperature, only the Auxiliary Heat operates.  
When the outdoor temperature is above the Auxiliary Lockout  
Temperature, only the Compressor operates. See Fig. 32.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Operation in Emergency Heat Mode  
COMPRESSOR ONLY  
AUXILIARY  
Once the thermostat is placed into the Emergency Heat mode,  
the compressor and auxiliary lockout features are turned off. In  
the Emergency heat mode, the compressor is locked out. The  
first stage of heat is whatever is connected to the AUX  
terminal. The second stage of heat is connected to the AUX2.  
terminal.  
5
3
0
5
LOCKOUT  
TEMPERATURE  
BOTH COMPRESSOR AND  
AUXILIARY HEAT  
COMPRESSOR  
LOCKOUT  
TEMPERATURE  
AUXILIARY ONLY  
M19950  
Operating Sequence  
The thermostat energizes specific terminal(s), depending on  
the demand for heating, cooling or fan. The thermostat screen  
shows the time, inside temperature, system and fan selections.  
Additional indicators are shown when the heating, cooling or  
fan is energized. See Table 5 and 6 for specification  
information.  
Fig. 32. Heat Pump Operation with Lockout  
Temperatures Set.  
When the outdoor temperature is between the two  
temperatures, both the Compressor and Auxiliary Heat operate.  
Table 5. Sequence of Operation for Conventional Systems.  
Fan Setting Call for Action Energize Terminals  
Auto None  
System Setting  
Off  
Screen Message  
None  
None  
None  
Cool or Auto  
Cool or Auto  
Cool or Auto  
Auto  
Auto  
Auto  
None  
Y, G  
None  
Stage 1 Cooling  
Cool On  
Cool On  
Stage 1 and Stage 2 cooling  
b
Y, Y2 , G  
Heat or Auto  
Heat or Auto  
Auto  
Auto  
None  
None  
W1, Ga  
None  
Stage 1 heating  
Heat On  
Heat or Auto  
Heat or Auto  
Auto  
Auto  
Stage 1 and Stage 2 heating  
c
e
Heat On  
Heat On  
W1, W2 , G  
Stage 1, Stage 2 and Stage 3 heating  
c
d
e
W1, W2 , W3 , G  
a
G energizes only if Installer set up number 180 is set to Option 1 (Electric Heat).  
If installer setup (ISU174) is configured for two stages of cooling.  
b
c
d
e
If installer setup (ISU 176) is configured for two or more stages of heating.  
If installer setup (ISU 176) is configured for three stages of heating.  
G energizes only if Installer set up number 180 is set to Option 1 (Electric Heat) or 2 (Hot water coil).  
Table 6. Sequence of Operation for Heat Pump Systems.  
System Setting Fan Setting  
Call for Action  
Energize Terminals  
Screen message  
Off  
Auto  
Auto  
Auto  
Auto  
Auto  
Auto  
Auto  
Auto  
Auto  
Auto  
Auto  
Auto  
none  
O/Ba  
O/Ba  
Y, G, O/Ba  
None  
Cool or Auto  
Cool or Auto  
Cool or Auto  
Heat or Auto  
Heat or Auto  
Heat or Auto  
none  
None  
Stage 1 cooling  
Cool On  
Cool On  
None  
Stage 1 and Stage 2 cooling  
none  
c
a
a
Y, Y2 , G, O/B  
O/Ba  
Y, G, O/Ba  
Stage 1 heating  
Heat On  
Heat On  
Aux Heat On  
a Aux Heat On  
Stage 1 and Stage 2 heating  
Stage 1, Stage 2 and Stage 3 heating  
Stage 1, Stage 2, Stage 3 and Stage 4 heating  
None  
c
Y, Y2 , G, O/B  
Heat or Auto  
Heat or Auto  
Em.Heatb  
Em.Heatb  
Em.Heatb  
f
c,f  
d
a
Y , Y2 , AUX , G, O/B  
f
c,f  
d
e
Y , Y2 , AUX , AUX2 , G, O/B  
O/Ba  
None  
Stage 1 Heating  
d
a
Aux Heat On  
Aux Heat On  
AUX , G, O/B  
Stage 1 and Stage 2 heating  
d
e
a
AUX , AUX2 , G, O/B  
a
b
c
d
e
f
Configure O/B in Installer Setup. Based on last piece of equipment called (cooling = O or Heating = B).  
Red LED is on. See LED indication section for more details (page 22).  
If installer setup (ISU 174) is configured for 2 compressor stages.  
If installer setup (ISU 176) is configured for one or more stages of Auxiliary Heat.  
If installer setup (ISU 176) is configured for two stages of Auxiliary Heat.  
If thermostat is controlling backup heat, see temperature lockout section (page 23).  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Table 7. Indoor Air Quality Operation.  
Last call  
Energize  
terminals  
System Setting  
Auto  
Call For Action  
Heat  
Cool  
Humidification  
HUM1 and HUM2 Closea  
Nothingb  
Nothingb  
Nothinga  
DHM1 and DHM2 closee  
DHM1 and DHM2 openc Yc and Gc  
None  
Auto  
Auto  
Dehumidification  
Dehumidification  
None  
Auto  
Ventilation  
VNT1 and VNT2 Close  
VNT1 and VNT2 Close  
None  
None  
None  
Heat or Em.Heat  
Heat or Em.Heat  
Humidification  
Dehumidification  
HUM1 and HUM2 Close  
VNT1 and VNT2 Closed  
NA  
NA  
Heat or Em.Heat  
Cool  
Ventilation  
VNT1 and VNT2 Close  
NA  
NA  
Nothinga  
None  
None  
Humidification  
Cool  
Cool  
Cool  
Dehumidification  
Dehumidification  
Ventilation  
NA  
NA  
NA  
DHM1 and DHM2 closee  
DHM1 and DHM2 openc Yc and Gc  
None  
VNT1 and VNT2 Close  
None  
a
b
c
d
e
Humidification only operates in heating or when last call was for heating.  
Dehumidification only operates in cooling or when last call was for cooling.  
Must be set up in installer setup (ISU 379) for dehumidification with air conditioning.  
Installer setup (ISU 406) must be setup for Ventilation in high humidity or nothing will happen.  
Only with whole house dehumidifier.  
Multi-Stage Heat and Cool Control  
In a multi-stage system, while maintaining setpoint, several  
factors affect when the next stage energizes, such as load  
conditions, environmental conditions, P+I control, and home  
insulation. The next stage energizes when the thermostat  
senses the previous stage is running at 90% capacity. This  
operation is droopless control.  
TUE  
CHANGE FILTER UV LAMP HUMIDIFIER PAD  
Inside  
Set To  
SYSTEM  
EM HEAT  
Following  
Schedule  
OFF  
COOL  
User Setup  
Humidity  
Follow these steps to enter the User Setup:  
DONE  
CANCEL  
1.  
Press and release the System key.  
M23503  
THU  
3.  
Release the center blank key when the screen on the  
thermostat matches the screen below.  
FAN  
ON  
Inside  
AUTO  
SYSTEM  
EM HEAT  
Following  
Schedule  
OFF  
A
COOL  
M
Humidity  
SCHED HOLD CLOCK SCREEN  
M23502  
DONE  
2.  
Press and hold the center blank key for approximately  
five seconds until the screen changes.  
M22440  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
4.  
See the screen below to review how the thermostat keys  
are used during the User Setup. See Table 8 for the User  
Setup numbers and settings.  
Table 8. User Setup Menu. (Continued)  
User  
Setup User Setup  
No. Name  
Settings  
ADVANCE TO NEXT  
USER SETUP  
USER SETUP  
NUMBER  
5
00 Furnace Filter  
0
1
2
3
4
5
6
7
8
9
1
Disabled  
Change  
10 R.T. Days  
30 R.T. Days  
60 R.T. Days  
90 R.T. Days  
120 R.T Days  
180 R.T. Days  
270 R.T. Days  
365 R.T. Days  
30 C Days  
CURRENT  
SETTING  
Reminder  
MON  
WED  
THU  
FRI  
SAT  
SUN  
0
60 C Days  
90 C Days  
1
1
1
1
1
2
3
4
120 C Days  
180 C Days  
365 C Days  
Auto Discover  
E
DONE  
5
10 Humidifier Pad 0  
Disabled  
Replacement  
Reminder  
1
2
3
E
90 C Days  
180 C Days  
365 C Days  
Auto Discover  
PRESS TO EXIT  
USER SETUP  
CHANGE THE  
CURRENT  
SETTING  
5
5
20 UV Lamp  
0
1
2
E
Disabled  
Replacement  
Reminder  
365 Days  
M19922  
730 Days (2 years)  
Auto Discover  
5.  
Press the Done key to exit the User Setup screen.  
30 Adaptive  
0
1
Conventional  
Adaptive  
Intelligent  
Recovery  
Table 8. User Setup Menu.  
User  
Setup User Setup  
No. Name  
540 Number of  
Periods  
2
2 Periods  
4
4 Periods  
Settings  
6
40 Clock Format 12  
12 Hour  
24 Hour  
1
1
1
20 Date (Year  
20  
21  
24  
Upper)  
670 Keypad  
Lockout  
0
1
2
Unlocked  
Partial Locked  
Full Locked  
30 Date (Year  
Lower)  
01-99 Default = 06  
40 Date (Month) 1-12 Select number that represents current  
calendar month.  
Default = 06  
PROGRAMMING  
150 Date (Day)  
1-31 Select number that represents current  
calendar date.  
Default = 15  
Preprogrammed Settings  
1
1
2
60 Schedule  
Options  
4
Seven-day programmable  
0
Non-programmable  
Table 9 shows default program settings.  
65 RestoreDefault 0  
No  
Yes  
Schedule  
1
80 Continuous  
Backlight  
0
Backlight not on continuously.  
Thermostat backlight comes on with  
each key press.  
Table 9. Default Program Settings.  
Setpoints  
Heat Cool  
1
Backlight is on continuously.  
3
3
4
20 Temperature  
0
1
Fahrenheit temperature display  
Celsius temperature display  
Schedule  
Period  
Fan  
Setting  
Indication  
Scale  
Time  
Wake  
Leave  
Return  
Sleep  
6:00AM 70°F (21°C) 78°F (25.5°C) Auto  
8:00AM 62°F (16.5°C) 85°F (29.5°C) Auto  
6:00PM 70°F (21°C) 78°F (25.5°C) Auto  
10:00PM 62°F (16.5°C) 82°F (28°C) Auto  
30 Daylight Saving 0  
Disabled  
Enabled (US 1987)  
Enabled (US 2007)  
1
2
00 Ventilation  
control  
0
1
2
No ventilation  
Ventilation on at all times  
Ventilation on except during sleep  
period  
Program Heating and Cooling Schedule  
Your thermostat can control up to four different schedule  
periods per day:  
Wake—Period when you awaken and want your home at a  
comfortable temperature.  
Leave—Period when you are away from home and want an  
energy-saving temperature.  
Return—Period when you return home and want your home  
back to a comfortable temperature.  
Sleep—Period when you are asleep and want an energy-  
saving temperature.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
NOTE: Schedule times are in 15-minute intervals.  
5. Press Up and Down keys to modify time and heat and  
cool temperatures from this screen.  
Edit Schedule  
NOTE: The Fan setting can be programmed for On, Auto, or  
Circ for each period selected. See Fan Schedule sec-  
tion for more information.  
1.  
Press Sched key.  
FRI  
6
7
.
.
Press Leave key and repeat step 5.  
Press Return key and repeat step 5.  
FAN  
Inside  
Set  
8. Press Sleep key and repeat step 5.  
AUTO  
9. When complete, press Done key. “Saving Changes”  
appears on the screen to indicate changes are being  
saved to the day(s) modified.  
Following  
SYSTEM  
Schedule  
HEAT  
MON  
TUE  
WED  
THU  
FRI  
AM  
PM  
Humidity  
SCHED  
HOLD  
CLOCK SCREEN  
M23504  
SAVING  
CHANGES  
2.  
Press Edit key.  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
OK TO PICK MULTIPLE DAYS SCREEN LOCKED  
M19956  
FAN  
Inside  
Set To  
HEAT  
AUTO  
NOTE: To set a Program Schedule for the remaining days of  
the week, repeat steps 1–9. Example: If Mon–Fri was  
selected first, go back and repeat steps 1–9 for Sat  
and Sun.  
CANCEL  
PERIOD  
Following  
Schedule  
SYSTEM  
EM HEAT  
HEAT  
OFF  
AM  
PM  
COOL  
10. To exit schedule without saving changes, press Cancel  
COOL  
AUTO  
key any time.  
SC HH EE DD  
EDIT  
H OO LL DD  
WAKE  
CLOCK SCREEN  
LEAVE RETURN SLEEP CANCEL  
DONE  
Cancel a Schedule Period  
M22553  
1.  
2.  
3.  
4.  
Press Sched key.  
Press Edit key.  
Select the Day(s) of the week desired.  
Press schedule period you want to cancel (Wake, Leave,  
Return or Sleep). Once selected, the period flashes.  
Press Cancel Period key.  
3.  
It is OK to pick multiple days. Select any combination of  
days to edit. These days are scheduled with the same  
times and temperatures. Check marks appear next to  
days selected.  
5.  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
OK TO PICK MULTIPLE DAYS SCREEN LOCKED  
FAN  
Inside  
Set To  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
HEAT  
AUTO  
OK TO PICK MULTIPLE DAYS  
FAN  
CANCEL  
PERIOD  
Following  
Schedule  
ON  
SYSTEM  
EM HEAT  
HEAT  
HEAT  
AUTO  
CIRC  
OFF  
AM  
PM  
CANCEL  
PERIOD  
COOL  
COOL  
AUTO  
SCH EE DD  
H OO LL DD  
WAKE  
CLOCK SCREEN  
LEAVE RETURN SLEEP CANCEL  
AM  
COOL  
DONE  
M22446  
6.  
The time, temperature(s) and fan setting disappear. The  
bar above the selected period is removed, indicating the  
scheduled period was cancelled.  
DONE  
WAKE  
LEAVE RETURN SLEEP CANCEL  
M19955  
4.  
Press Wake key. Once pressed, Wake flashes to show it  
is selected.  
NOTE: To reinstate a schedule period, press arrow keys to  
set desired time and temperatures.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
Table 10. Fan Program Operation and Screen Status.  
Fan  
OK TO PICK MULTIPLE DAYS  
FAN  
HEAT  
Fan  
Call  
for  
Status  
shownon  
Screen  
Fan  
Program  
Schedule  
Energize  
Terminal  
Setting  
Action  
Auto  
Auto  
Auto  
Auto  
Auto  
On  
None  
Fan  
None  
G
Auto  
COOL  
Auto/On  
Auto/Circ  
Auto/Circ  
Circ  
Circ  
None  
Fan  
None  
G
DONE  
WAKE  
LEAVE RETURN SLEEP CANCEL  
M19957  
Manual Override of Fan Schedule  
7
.
Press Done key.  
Auto—fan is automatically following the Fan schedule (choices  
are Auto, On or Circulate).  
Fan Schedule  
On—overrides Fan schedule. Fan is continuously On.  
Circ—overrides Fan schedule. Fan circulates randomly for  
approximately 35% of time until the Auto position is selected.  
Press Fan key while in the Scheduling Screen to program the  
System Fan. Choices available from the Scheduling Screen:  
Auto (default position)—fan runs with equipment.  
Programmable for all schedule periods (Wake, Leave, Return  
and Sleep).  
Table 11. Manual Override of Fan Schedule Operation.  
Screen  
On—fan runs continuously (programmable for all schedule  
periods).  
Circ—fan runs randomly for approximately 35% of schedule  
period (programmable for all schedule periods).  
Fan  
Message  
Under  
Fan  
Schedule  
Override  
Setting  
Call  
for  
Action  
Fan  
Setting  
Energize  
Terminal  
Setting  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
Auto  
Auto  
Auto  
On  
On  
Fan  
None  
Fan  
G
On  
Circ  
Circ  
OK TO PICK MULTIPLE DAYS SCREEN LOCKED  
Circ  
Circ  
Autoa  
None  
G
FAN  
Inside  
Set To  
HEAT  
AUTO  
CANCEL  
PERIOD  
Following  
Schedule  
SYSTEM  
EM HEAT  
HEAT  
On  
Circ  
Circ  
None  
None  
Circ  
On  
Fan  
G
Circ  
OFF  
AM  
PM  
COOL  
COOL  
Autoa  
Circ  
AUTO  
SCHED  
H OO LL DD  
WAKE  
CLOCK SCREEN  
LEAVE RETURN SLEEP CANCEL  
Circ  
On  
Fan  
G
On  
DONE  
aAuto Override resumes the Fan Program in each schedule  
period (Wake, Leave, Return and Sleep)  
M22447  
Fan Control  
®
If the Fan program is scheduled, Auto is shown and any  
programmable mode that is set; for example, if during Wake  
period, Fan is set to Auto, only Auto is shown in the Fan area.  
However, if during the Wake period, fan is scheduled to On,  
both Auto and On are shown. Auto indicates fan is running its  
schedule; On indicates Fan schedule is set to On.  
OPERATE VISIONPRO IAQ  
Set Time  
1
2
.
.
Press Clock.  
Use arrows to set current time.  
THU  
FAN  
ON  
Inside  
Set  
AUTO  
Following  
Schedule  
SYSTEM  
HEAT  
AM  
Humidity  
SCHED  
HOLD  
CLOCK SCREEN  
M23505  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
PERMANENT HOLD  
Permanent Hold changes the temperature setting until  
Permanent Hold is cancelled.  
TUE  
1
.
.
Press Hold key. “Permanent Hold” appears on the  
screen.  
Press Up or Down arrow next to the temperature you  
want to set during “Hold.”  
2
AM  
TUE  
FAN  
Inside  
Set To  
AUTO  
DONE  
CANCEL  
M19958  
SYSTEM  
3.  
Press Done key.  
HEAT  
AM  
IMPORTANT  
Permanent  
Hold  
Humidity  
CLOCK SCREEN  
The current day of the week should already be set  
correctly. If not, see Installer Setup to set the day.  
SCHED HOLD  
CANCEL  
M23507  
Set Temperature Overrides  
The thermostat has four temperature override options: Hold  
Temperature Until, Permanent Hold, Vacation Hold, and  
Southern Dehumidification Away Setting.  
3.  
Press Cancel key to cancel “Permanent Hold” and  
resume the schedule.  
VACATION HOLD  
HOLD TEMPERATURE UNTIL (TEMPORARY HOLD)  
Holds temperature temporarily until the next scheduled period  
time or until the time the user sets.  
Changes temperature setting for a designated number of days.  
1. Press the Up and Down arrow keys to set the desired  
temperature while away on vacation. Notice that “Hold  
Temperature Until” time is shown on the screen. (This is  
the time the Vacation Hold override expires after the  
number of days ends.)  
1.  
Press Up or Down arrow next to the temperature you  
want to adjust. “Hold Temperature Until” time appears on  
the screen. The Hold Temperature Until time defaults to  
the start time of the next scheduled period.  
2. Press Hold key twice. Screen shows “Hold Temperature  
Until” one day.  
3.  
Press Up and Down arrow keys to change the number of  
Days you desire thermostat to override the schedule.  
NOTE: The Time Up and Down arrows are shown for approx-  
imately seven seconds. Pressing on the screen time  
(
where the Hold Temperature Until time is shown)  
NOTE: Days Up and Down arrows appear for approximately  
seven seconds. Pressing just below Hold Tempera-  
ture Until on the screen allows the Days Up and Down  
arrows to reappear.  
allows the arrows to reappear.  
2.  
Press Up or Down arrow next to the Time key to set  
desired time for the thermostat to resume schedule.  
TUE  
THU  
FAN  
FAN  
Inside  
Set  
Inside  
Set To  
AUTO  
AUTO  
SYSTEM  
SYSTEM  
Hold Temperature  
Until  
Hold Temperature  
Until  
HEAT  
HEAT  
DAYS  
PM  
Humidity  
CLOCK SCREEN  
Humidity  
SCHED  
HOLD  
SCHED  
CLOCK SCREEN  
CANCEL  
M23506  
CANCEL  
M23508  
4.  
To cancel the Vacation Hold override early, press the  
Cancel key.  
3.  
Press the Cancel or Sched key to cancel “Hold  
Temperature Until” and resume schedule.  
NOTE: When the number of days of Vacation Hold expires,  
the screen shows “Following Schedule” to indicate  
that Vacation Hold has ended.  
NOTE: Once “Hold Temperature Until” time is reached, the  
thermostat shows “Following Schedule” on the screen  
to indicate that “Temporary Hold” has ended.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
SOUTHERN DEHUMIDIFICATION AWAY SETTING  
Screen Locks  
Southern Dehumidification Away Setting is an option that only  
appears if ISU number 390 is set to yes. It can be used to  
maintain the desired humidity level and temperature in the  
living space while away for extended periods of time. See ISU  
Numbers 390–394 for more information.  
TU  
SCREEN LOCKED  
Set  
FAN  
Inside  
AUTO  
Following  
Schedule  
FRI  
SYSTEM  
HEAT  
FAN  
Inside  
Set To  
AUTO  
Humidity  
SYSTEM  
HEAT  
SCHED HOLD CLOCK SCREE MORE  
DEHUMIDIFIER  
M23509  
AM  
COOL  
Permanent  
Hold  
Partially Locked Screen  
MORE  
CANCEL  
M23521  
When partially locked, the screen indicates Screen Locked for  
5 to 7 seconds whenever the user attempts to press a key that  
is locked. Pressing a locked key, while Screen Locked is  
shown, flashes “Screen Locked” on the screen.  
1
.
.
Press Hold three times to enter the Southern Dehumidifi-  
cation Away Setting.  
2
These settings can only be changed in installer setup.  
In this mode, all keys are locked except the Temperature Up  
and Down arrow keys:  
Clean Thermostat Screen  
User can change temperature up or down but cannot  
change schedule settings.  
The thermostat has a touch screen interaction. Follow these  
steps to clean the screen without making thermostat changes:  
— Temporary temperature change lasts until next scheduled  
period and that time shows on screen.  
— To cancel temperature override and begin following  
schedule, press Cancel key.  
1.  
Press the Screen key. Thermostat locks out all touch  
keys for 30 seconds to allow for cleaning.  
To unlock screen, see Installer Setup section.  
Fully Locked Screen  
In this mode, all keys are locked and not functional. To unlock  
screen, see Installer Setup section. The screen continuously  
displays “Screen Locked.”  
OK TO  
CLEAN  
SCREEN  
Humidification Control  
If you have a humidifier and outdoor temperature sensor, you  
can use Frost Control to reduce window condensation.  
1
.
Press MORE until the humidifier screen is displayed.  
M19964  
2. Press the Up or Down arrow to set the humidity and  
Frost Control level. (Use a lower Frost Control level if  
frost appears on windows. Use a higher setting if the air  
is too dry.)  
3. Press DONE to save and exit, or press CANCEL to exit  
without saving changes.  
2
.
.
Use damp cloth slightly moistened with water or house-  
hold glass cleaner to clean the screen.  
3
Repeat the above steps, as necessary.  
IMPORTANT  
Do not spray any type of liquid directly on the thermo-  
NOTE: If you do not have an outdoor temperature sensor, the  
Frost Control level will not be displayed.  
stat itself. If using household glass cleaner, spray  
cleaner on cloth. Then use a cloth to clean the ther-  
mostat screen.  
Dehumidification Control  
4.  
Press the Done key to return to the Home Screen and  
normal operation.  
If installed to control a dehumidifier, the thermostat can activate  
it as needed to reduce humidity.  
If you don’t have a dehumidifier, the thermostat activates the  
air conditioner to reduce humidity (may cool as much as 3°F  
lower than your temperature setting).  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
1
2
.
.
Press MORE until the dehumidifier screen is displayed.  
Press the Up or Down arrow to set the desired humidity  
level and operation (Auto or Off).  
1. Press the More key until the filter reminder appears on  
the screen. This is the number of fan run-time or calen-  
dar days remaining on the filter reminder.  
3.  
Press DONE to save and exit, or press CANCEL to exit  
without saving changes.  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
CHANGE FILTER UV LAMP HUMIDIFIER PAD  
Ventilation Control  
You can ventilate your home at any time:  
1
2
.
.
Press MORE until the ventilation screen is displayed.  
Press the Up or Down arrow to set the ventilation timer.  
You can set the timer to ventilate from 20 to 180 minutes,  
in 20-minute increments. To turn off the ventilator, select  
RESET  
DAYS  
0
.
3.  
Press DONE to save and exit, or press CANCEL to exit  
without saving changes.  
SCH EE DD  
EDIT  
H OO LL DD  
WAKE  
CLOCK SCREEN MORE  
LEAVE RETURN SLEEP CANCEL  
DONE  
M22449  
If programmed for auto-ventilation by the installer, the  
thermostat will ventilate your home as needed.  
2
3
.
.
Press the Edit key.  
Use the Up and Down keys to change the number of run-  
time or calendar days.  
Indoor Air Quality Reminders  
Filter Change Reminder  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
The filter change reminder must be turned on from the Installer  
Setup. Once expired, the screen flashes, “Change Filter” and a  
Reset key appears. Press the Reset key to reset the change  
reminder. The installer can configure the Filter Change  
Reminder to display remaining run-time or calendar days.  
CHANGE FILTER UV LAMP HUMIDIFIER PAD  
DAYS  
MON  
TUE  
WED  
THU  
FRI  
SA  
SUN  
OK TO PICK MULTIPLE DAYS SCREEN LOCKED  
CHANGE FILTER UV LAMP HUMIDIFIER PAD  
FAN  
SCH EE DD  
H OO LL DD  
WAKE  
CLOCK SCREEN  
LEAVE RETURN SLEEP CANCEL  
Inside  
Set To  
DONE  
AUTO  
M22450  
Following  
Schedule  
SYSTEM  
RESET  
4.  
Press the Done key to go back to the viewing screen.  
HEAT  
PM  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
Humidity  
SCHED  
HOLD  
CLOCK SCREEN MORE  
CHANGE FILTER UV LAMP HUMIDIFIER PAD  
M23511  
RESET  
NOTE: When using run-time days, the days are counted as  
fan run time, so anytime the fan is running, the  
reminder is counting that time against the number of  
days selected.  
DAYS  
SCH EE DD  
EDIT  
H OO LL DD  
WAKE  
CLOCK SCREEN MORE  
LEAVE RETURN SLEEP CANCEL  
The remaining days can be viewed by pressing the More key;  
the remaining days can be edited using the More key or from  
the Installer Setup. To view or reset the reminder before it  
expires, follow these steps using the More key:  
DONE  
M22449  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
5.  
Press the Reset key to activate the new number of days  
selected in the previous screen.  
NOTE: While the reminder is set according to calendar days,  
the display shows the equivalent run time days.  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
MON  
TUE  
WED  
THU  
FRI  
SA  
SUN  
CHANGE FILTER UV LAMP HUMIDIFIER PAD  
CHANGE FILTER UV LAMP HUMIDIFIER PAD  
RESET  
RESET  
DAYS  
DAYS  
SCHED  
EDIT  
H OO LL DD  
WAKE  
CLOCK SCREEN MORE  
LEAVE RETURN SLEEP CANCEL  
SCH EE DD  
EDIT  
HOLD  
WAKE  
CLOCK SCREEN MORE  
LEAVE RETURN SLEEP CANCEL  
M23517  
DONE  
DONE  
M22451  
6
.
Press the Done key to return to the Home screen.  
The remaining days can be edited using the More key or from  
the Installer Setup. To view or reset the reminder before it  
expires, follow these steps using the More key:  
Humidifier Pad Reminder  
The Humidifier Pad change reminder must be turned on from  
the Installer Setup. Once expired, the screen flashes, “Change  
Humidifier Pad” and a Reset key appears. Press the Reset key  
to reset the change reminder.  
1
.
Press the More key until the UV Lamp change reminder  
appears on the screen. This is the number of run time  
days remaining on the UV Lamp reminder.  
Press the Edit key.  
2.  
The remaining calendar or run time days can be viewed by  
pressing the More key. The remaining days can be edited  
using the More key or from the Installer Setup.  
3. Use the Up and Down keys to change the number of cal-  
endar days.  
4. Press the Done key to go back to the viewing screen.  
5.  
Press the Reset key to activate the new number of days  
selected in the previous screen.  
Press the Done key to return to the Home Screen.  
6.  
MON  
TUE  
WED  
THU  
FRI  
SA  
SUN  
CHANGE FILTER UV LAMP HUMIDIFIER PAD  
Temperature Recovery  
The thermostat feature, Adaptive Intelligent Recovery™,  
eliminates all guesswork when setting the thermostat schedule.  
RESET  
Simply set the program schedule to the time that the comfort  
temperature is desired. The thermostat then turns on the  
heating or cooling at just the right time to have the home reach  
the scheduled temperature at the scheduled time.  
DAYS  
For example—get up at 6:00 AM and want the temperature to  
be 70°F. Set the Wake period for 6:00 AM and 70°F. The  
thermostat then turns on the heat before 6:00 AM to raise the  
temperature to 70°F by 6:00 AM.  
SCHED  
EDIT  
HO LL DD  
WAKE  
CLOCK SCREEN MORE  
LEAVE RETURN SLEEP CANCEL  
M23516  
DONE  
To view or reset the reminder before it expires, follow these  
steps using the More key:  
The thermostat alerts that the heating or cooling system is  
coming on before a scheduled time by showing “Recovery” on  
the screen.  
1
.
Press the More key until the Humidifier Pad change  
reminder appears on the screen. This is the number of  
calendar days remaining on the Humidifier Pad reminder.  
Press the Edit key.  
Use the Up and Down keys to change the number of cal-  
endar or run time days.  
Press the Done key to go back to the viewing screen.  
Press the Reset key to activate the new number of days  
selected in the previous screen.  
2
3
.
.
TUE  
FAN  
Inside  
Set To  
4
5
.
.
AUTO  
Following  
Schedule  
Recovery  
6.  
Press the Done key to return to the Home Screen.  
SYSTEM  
HEAT  
UV Lamp Reminder  
PM  
The UV Lamp change reminder must be turned on from the  
Installer Setup. Once expired, the screen flashes, “Change UV  
Lamp” and a Reset key appears. Press the Reset key to reset  
the change reminder.  
Humidity  
SCHED  
HOLD  
CLOCK SCREEN MORE  
M23512  
The remaining calendar days can be viewed by pressing the  
More key.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
NOTE: It takes about a week for the thermostat to adjust to  
local weather, the schedule, the construction of the  
home and the heating and/or cooling system. Each  
day it adjusts the next day’s recovery start time  
accordingly.  
Minimum Off-Timer  
The Thermostat has built-in compressor protection (minimum-  
off timer) that prevents the compressor from restarting too  
early after a shutdown. The minimum-off timer is activated after  
the compressor turns off.  
P+I Control  
If there is a call during the minimum-off timer, the thermostat  
shows “Wait” in the display.  
The thermostat microprocessor-based control requires that the  
user understands temperature control and thermostat  
performance. A conventional mechanical or electronic  
thermostat does not control temperature precisely at setpoint.  
Typically there is an offset (droop) in the control point as the  
system load changes. This is a phenomenon that most people  
in the industry know and accept. Many factors contribute to  
offset including switch differential, thermal lag, overshoot, cycle  
rates and system load.  
WED  
FAN  
Inside  
Set To  
AUTO  
Wait  
Following  
SYSTEM  
HEAT  
Schedule  
The thermostat microprocessor simultaneously gathers,  
compares and computes data. Using this data, it controls a  
wide variety of functions. The special proprietary algorithm  
AM  
PM  
COOL  
Humidity  
(program) in the thermostat eliminates the factors causing  
offset. This makes temperature control more accurate than the  
conventional mechanical or electronic thermostats. The  
temperature control algorithm is called proportional plus  
integral (P+I) control.  
SCHED  
HOLD  
CLOCK SCREEN MORE  
M23513  
When the minimum-off timer expires, “Cool On” or “Heat On”a  
appears in the display and the compressor and fan turn on.  
The thermostat sensor, located on the thermostat or remote,  
senses the current space temperature. The proportional error  
is calculated by comparing the sensed temperature to the  
programmed setpoint. The deviation from the setpoint is the  
proportional error.  
_________  
aHeat Pumps only.  
The thermostat also determines integral error, which is a  
deviation based on the length of error time. The sum of the two  
errors is the (P+I) error. The cycle rate used to reach and  
maintain the setpoint temperature is computed using the P+I.  
The addition of the integral error is what differentiates the  
thermostat from many other electronic and mechanical  
thermostats. See Fig. 33.  
Inside Humidity Level  
The humidity level in the home is shown in the lower right  
corner of the Home Screen.  
NOTE: If an outdoor temperature sensor is present, the out-  
door temperature will be displayed in this location  
rather than the indoor humidity. To see indoor humid-  
ity, display the humidity settings menu.  
THERMOSTAT  
COOL SETPOINT  
PROPORTIONAL COOL  
CONTROL POINT  
TUE  
P+I CONTROL  
POINT  
FAN  
Inside  
Set  
AUTO  
P+I CONTROL POINT  
Following  
Schedule  
SYSTEM  
PROPORTIONAL HEAT  
CONTROL POINT  
THERMOSTAT  
HEAT SETPOINT  
COOL  
PM  
Humidity  
HEATING  
50  
COOLING  
50  
SCHED  
HOLD  
CLOCK SCREEN MORE  
1
00  
0
100  
M23678  
PERCENT LOAD  
M4414  
If thermostat is set to Auto Changeover System mode, press  
the More key until the humidity level is shown on the screen.  
Fig. 33. Proportional temperature control versus P+ I  
temperature control.  
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Table 12. Sensor Resistance at  
Outdoor Temperature.  
MON  
TUE  
WED  
THU  
FRI  
SA  
SUN  
Outdoor  
Temperature  
Outdoor  
Temperature  
Inside  
Ohms of  
Ohms of  
Resistance  
°
F
°C  
Resistance  
106926  
100923  
95310  
90058  
85124  
80485  
76137  
72060  
68237  
64631  
61246  
58066  
55077  
53358  
49598  
47092  
44732  
42506  
40394  
38400  
36519  
34743  
33063  
31475  
29975  
28558  
27219  
25949  
24749  
23613  
22537  
21516  
20546  
19626  
18754  
17926  
°F  
52  
°C  
-20  
-18  
-16  
-14  
-12  
-10  
-28.9  
-27.8  
-26.7  
-25.6  
-24.4  
-23.3  
-22.2  
-21.1  
-20.0  
-18.9  
-17.8  
-16.7  
-15.6  
-14.4  
-13.3  
-12.2  
-11.1  
-10.0  
-8.9  
11.1  
12.2  
13.3  
14.4  
15.6  
16.7  
17.8  
18.9  
20.0  
21.1  
22.2  
23.3  
24.4  
25.6  
26.7  
27.8  
28.9  
30.0  
31.1  
32.2  
33.3  
34.4  
35.6  
36.7  
37.8  
38.9  
40.0  
41.1  
42.2  
43.3  
44.4  
45.6  
46.7  
47.8  
48.9  
17136  
16387  
15675  
14999  
14356  
13743  
13161  
12607  
12081  
11578  
11100  
10644  
10210  
9795  
9398  
9020  
8659  
8315  
7986  
7672  
7372  
7086  
6813  
6551  
6301  
6062  
5834  
5614  
5404  
5203  
5010  
4826  
4649  
4479  
4317  
54  
56  
58  
SC HH EE DD  
HOLD  
WAKE  
CLOCK SCREEN  
LEAVE RETURN SLEEP CANCEL  
M23679  
60  
DONE  
62  
-8  
64  
-6  
66  
C7089U1006 Outdoor Temperature Sensor  
-4  
68  
-2  
70  
Operation  
0
72  
When installed with Thermostat Installer Setup Number 0342  
set to 1, the outside temperature can be displayed on the  
thermostat. See Fig. 34.  
2
4
6
8
74  
76  
78  
80  
MON  
TUE  
WED  
THU  
FRI  
SAT  
SUN  
1
0
82  
FAN  
Inside  
Set To  
12  
84  
AUTO  
1
4
86  
Following  
Schedule  
SYSTEM  
16  
18  
88  
HEAT  
Outside  
-7.8  
90  
AM  
2
0
-6.7  
92  
2
2
4
6
8
-5.6  
94  
SCHED  
HOLD  
CLOCK SCREEN MORE  
2
2
2
-4.4  
96  
M22453  
-3.3  
98  
-2.2  
100  
102  
104  
106  
108  
110  
112  
114  
116  
118  
120  
Fig. 34. Outside temperature reading on  
®
VisionPRO IAQ Thermostat.  
30  
-1.1  
3
3
3
3
2
4
6
8
0.0  
The C7089U1006 Outdoor Sensor converts outdoor ambient  
temperature to a resistance that the thermostat can interpret.  
1.1  
2.2  
The C7089U1006 has a negative temperature coefficient  
3.3  
(
NTC), which means that resistance decreases as the  
temperature increases. See Table 12.  
40  
4.4  
4
4
4
4
5
2
4
6
8
0
5.6  
Checkout  
6.7  
Allow C7089U1006 Outdoor Sensor to absorb outdoor air for a  
minimum of twenty minutes before taking a reading.  
7.8  
8.9  
With an accurate thermometer (±1°F [0.5°C]) measure the  
temperature at the sensor location, allowing time for the  
thermometer to stabilize before reading.  
10.0  
C7189U1005 Remote Indoor Temperature  
Sensor  
To verify sensor resistance, remove one wire from one of the  
C7089U1006 60-in. leadwires. Use an ohmmeter to measure  
the resistance across the sensor. Then verify the sensor  
accuracy with the temperature/resistance in Table 12.  
Operation  
When installed with Thermostat Installer Setup Number 0340  
set to 1, the remote inside temperature is displayed on the  
thermostat home screen as Inside Temperature. The  
thermostat internal temperature sensor is not used. When  
Calibration  
The C7089U1006 Outdoor Sensor is calibrated at the factory  
and cannot be recalibrated in the field.  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
installed with Thermostat Installer Setup Number 340 set to 2,  
the temperature displayed on the thermostat home screen as  
Inside Temperature will be a 50/50 average between the  
temperature sensed at the remote sensor location and the  
temperature sensed at the thermostat location.  
Table 13. Sensor Resistance at Room Temperature.  
Room  
Temperature  
Room  
Temperature  
Ohms of  
Ohms of  
Resistance  
°
F
°C  
Resistance  
°F  
96  
°C  
64  
17.8 13161  
18.9 12607  
20.0 12081  
21.1 11578  
35.6 6813  
36.7 6551  
37.8 6301  
The C7189U1005 Wall Mount Temperature Sensor converts  
room temperature to a resistance that the thermostat can  
interpret.  
66  
98  
6
8
0
100  
7
The C7189U1005 has a negative temperature coefficient  
(
NTC), which means that resistance decreases as the  
temperature increases. See Table 13.  
COMMUNICATION ERROR CODES  
VisionPRO® IAQ can alert the homeowner and installer to  
problems with the HVAC equipment, thermostat, or equipment  
interface module by using error codes. Please see Table 14 for  
a list of error codes. When an error is active (the condition  
causing the error is still present) it will be displayed in the time  
field on the thermostat home screen. The home screen can  
display up to 5 active errors. The time field will flash the time,  
“Err,” and a list of up to 5 error codes, beginning with the most  
critical, and repeat until the errors have been remedied.  
The C7189U1005 can be used to provide one remote sensor  
input (see Fig. 26) or as a temperature averaging network with  
multiple C7189U1005 Sensors connected, as shown in Fig. 27.  
Checkout  
For best results, allow C7189U1005 Wall Mount Temperature  
Sensor to absorb the air moving through the room for a  
minimum of twenty minutes before taking a resistance  
measurement.  
With an accurate thermometer (±1°F [0.5°C]) measure the  
temperature at the sensor location, allowing time for the  
thermometer to stabilize before reading.  
A log of error codes can be viewed at the end of the installer  
setup after the system tests. Active errors will be shown first.  
The Error Log will log the last ten errors (active and inactive).  
Pressing the reset button will clear all inactive errors from the  
error log; active errors can not be cleared until the condition  
has been remedied.  
To verify sensor resistance, remove one wire from one of  
C7189U1005 wiring terminals. Use an ohmmeter to measure  
the resistance across the sensor. Then verify the sensor  
accuracy with the temperature/resistance in Table 13.  
Calibration  
Table 14. VisionPRO® IAQ Error Codes.  
The C7189U1005 Wall Mount Temperature Sensor is  
Error Code  
Meaning  
calibrated at the factory and cannot be recalibrated in the field.  
0
27  
35  
36  
Faulty thermostat (must be replaced)  
Duplicate thermostat zone detected  
Duplicate UV timer  
0
0
Table 13. Sensor Resistance at Room Temperature.  
Room  
Temperature  
Room  
Temperature  
037  
038  
Duplicate filter timer  
Ohms of  
Resistance  
Ohms of  
Resistance  
Duplicate humidifier pad timer  
Duplicate indoor humidity sensor  
Compressor should be running but it is not  
Duplicate outdoor temperature sensor  
Faulty post-coil air discharge sensor  
Faulty outdoor temperature sensor  
Faulty indoor humidity sensor  
°
F
°C  
°F  
72  
74  
76  
78  
80  
82  
84  
86  
88  
90  
92  
94  
°C  
0
0
0
0
0
0
0
0
0
39  
40  
50  
52  
53  
54  
89  
90  
91  
4
4
4
4
4
5
5
5
5
5
6
6
0
2
4
6
8
0
2
4
6
8
0
2
4.4 22537  
5.6 21516  
6.7 20546  
7.8 19626  
8.9 18754  
10.0 17926  
11.1 17136  
12.2 16387  
13.3 15675  
14.4 14999  
15.6 14356  
16.7 13743  
22.2 11100  
23.3 10644  
24.4 10210  
25.6 9795  
26.7 9398  
27.8 9020  
28.9 8659  
30.0 8315  
31.1 7986  
32.2 7672  
33.3 7372  
34.4 7086  
Heating/cooling equipment is missing  
Data interface is continuously busy  
Thermostat is not receiving data from other  
equipment  
118  
119  
121  
Faulty discharge air temperature sensor  
Faulty temperature sensor  
Duplicate post-coil air discharge sensor  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
TROUBLESHOOTING  
Table 15. Troubleshooting.  
Symptom  
Possible Cause  
Action  
Display does not come on  
Thermostat is not being powered  
Check if the thermostat is mounted and latched on the wall  
plate. If not:  
Mount and latch the thermostat on the wallplate.  
Check if the circuit breaker is tripped or the fuse is blown; if  
it is:  
Reset the circuit Breaker or replace the fuse.  
Check if the power switch at the equipment is in the off  
position; if it is:  
Set to the on position.  
Check for 24 Vac between terminals 2 and 3 at the  
thermostat.  
Replace any broken wires if 24Vac is not present.  
Replace thermostat if 24Vas is present.  
Check for 24 Vac between terminals R and C at the  
Equipment interface module.  
If 24Vac is not present consult electrician.  
If 24 Vac is Present replace Equipment interface  
module.  
Temperature setting does not  
change  
The upper and lower temperature  
limits reached  
Check temperature setpoints.  
Check installer setup Numbers 0600 and 610; modify as  
needed.  
Keypad is fully locked  
Check Installer Setup Number 670 to change keypad  
locked options.  
Heating or cooling does not  
come on and thermostat is not activated  
calling for heat or cool.  
Thermostat minimum off timer is  
Wait up to 5 minutes for the system to respond (Wait is  
displayed on the Thermostat home screen.  
System selection is not set to Heat Set system selection to correct setting.  
or Cool  
Heating or cooling equipment is not Check Wiring.  
operating Check installer setup number 172 and verify the correct  
Heating or cooling does not  
come on and thermostat is  
calling for heat or cool.  
system type is chosen.  
Verify operation of equipment in system test mode.  
Heat does not turn on (“Heat On” Heating Equipment failure  
is solid in the display)  
Check for 24 Vac at the equipment on the secondary side  
of the transformer between power and common. If voltage  
is not present check the heating equipment to find the  
cause of the problem.  
Check for 24 Vac between the heat terminal(s) on the  
equipment interface Module and transformer common. If  
present check heating equipment to find the cause of the  
problem.  
Loose or broken wire connection  
between Equipment Interface  
Module and heating equipment.  
Check for 24 Vac between the heat terminal(s) on the  
HVAC equipment and system transformer common. If  
voltage is not present check for loose or broken wires  
between the EIM and heating equipment.  
Communication is not being  
completed  
End the call for heat at the thermostat then repeat the call  
for heat. Check the communication LED on the EIM board.  
If the LED does not blink, check communication  
wiring (wire between terminal 1 on both the EIM  
and thermostat.  
If the LED does blinks correctly, check for 24 Vac  
between heating terminals on the EIM and the sys-  
tem common.  
If 24 Vac is not present check the R to Rh connection on  
the EIM, if the connection is good replace the EIM.  
6
8-0287—04  
36  
href="
VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Table 15. Troubleshooting. (Continued)  
Possible Cause  
Symptom  
Action  
Cooling does not turn on (“Cool Cooling Equipment failure  
On” is solid in the display)  
Check for 24 Vac at the equipment on the secondary side  
of the transformer between power and common. If voltage  
is not present check the cooling equipment to find the  
cause of the problem.  
Check for 24 Vac between the cool terminal(s) on the  
equipment interface Module and transformer common. If  
present check cooling equipment to find the cause of the  
problem.  
Loose or broken wire connection  
between Equipment Interface  
Module and cooling equipment.  
Check for 24 Vac between the cool terminal(s) on the  
cooling equipment and system transformer common. If  
voltage is not present check for loose or broken wires  
between the EIM and cooling equipment.  
Communication is not being  
completed  
End the call for cool at the thermostat then repeat the call  
for cool. Check the communication LED on the EIM board.  
If the LED does not blink, check communication  
wiring (wire between terminal 1 on both the EIM  
and thermostat.  
If the LED does blinks correctly, check for 24 Vac  
between heating terminals on the EIM and the sys-  
tem common.  
If 24 Vac is not present check the R to Rh connection on  
the EIM, if the connection is good replace the EIM.  
2
nd stage heat or cool does not Stage configuration is not set  
Set the stage configuration in installer setup for additional  
stages of cool (ISU 174) or additional stages of heat (ISU  
176).  
energize  
correctly to match the number of  
selected stage  
Terminals not connected properly at Check that 24 Vac is present at W2/AUX and W3/AUX2 for  
EIM  
2nd and 3rd stages of conventional heating and for 3rd and  
th stages of heat pump heating. Also check that 24VAC is  
4
present at Y2 for 2nd stage of cooling or 2nd stage heat in  
heat pump applications.  
Err” appears in time field of  
Thermostat has detected an error  
on the communication bus  
Refer to error code section for more information.  
home screen on thermostat  
Fan does not turn on in a call for Fan Control in Heating is set to Gas Set Fan Control in Heating to Electric Furnace (Setting  
heat (electric furnace).  
or Oil Furnace (Setting 0180).  
0180).  
Heat pump puts out cool air in  
Changeover Valve (Installer Setup Set Changeover Valve (Installer Setup Number 0190) to  
the heat mode and warm air in Number 0190) is not configured to match the changeover required by the installed heat pump.  
the cool mode.  
match the changeover required by  
the installed heat pump.  
Both the heating and cooling  
equipment are running at the  
same time.  
The heating equipment is not a heat Set System Type (Installer Setup Number 0172) to match  
pump but the System Type (Installer the installed heating and/or cooling equipment.  
Setup Number 0172) is set to Heat  
Pump.  
Heating and cooling wires are  
shorted together.  
Separate the shorted heating and cooling wires.  
Heating equipment is running in Heating equipment is not a heat  
Set System Type (Installer Setup Number 0172) to match  
the installed heating and/or cooling equipment.  
the cool mode.  
pump but System Type (Installer  
Setup Number 0172) is set to Heat  
Pump.  
Heating equipment does not turn Heating equipment is not a heat  
off and heat temperature setting pump but System Type (Installer  
is set below room temperature Setup Number 0172) is set to Heat  
Set System Type (Installer Setup Number 0172) to match  
the installed heating and/or cooling equipment.  
(
Heat On is not in the display). Pump.  
Cannot set the system setting to System Type (Installer Setup  
Heat.  
Set System Type (Installer Setup Number 0172) to match  
Number 0172) is set to Cool Only. the installed heating and/or cooling equipment.  
Cannot set the system setting to System Type (Installer Setup  
Set System Type (Installer Setup Number 0172) to match  
Cool.  
Number 0172) is set to Heat Only or the installed heating and/or cooling equipment.  
Heat Only with Fan.  
37  
68-0287—04  
href="
VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Table 15. Troubleshooting. (Continued)  
Symptom  
Possible Cause  
Action  
Heat On is not in the display.  
System setting is not set to Heat  
and/or temperature setting is not set setting above the room temperature.  
above room temperature.  
Set the system setting to Heat and set the temperature  
Cool On is not in the display.  
Wait is in the display.  
System setting is not set to Cool  
and/or the temperature setting is  
not set below room temperature.  
Set the system setting to Cool and set the temperature  
setting below the room temperature.  
Compressor minimum off timer is  
active.  
Wait up to five minutes for the cooling or heating (heat  
pump) equipment to turn on.  
Screen Locked” appears on the The keypad is fully or partially  
Check Installer Setup Number 0670 to change keypad  
locked options.  
screen and all or some of the  
keys do not respond.  
locked.  
6
8-0287—04  
38  
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VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
COMPATIBILITY  
Recommend the following products for use with the VisionPRO® IAQ.  
Table 16. Humidifiers  
HE440A1005—Powered Steam Humidifier with 13 gpd capacity  
HE365A1006—Powered Bypass Flow-through humidifier with 18 gpd capacity  
HE265A1007—Bypass Flow-through humidifier with 17 gpd capacity  
HE225A1006—Bypass Flow-through humidifier with 12 gpd capacity  
Table 17. Dehumidifier  
DH90A1007—90 Pint Whole House Dehumidifier  
Table 18. Ventilation  
HR150B1005—heat recovery ventilator 150cfm with built in defrost  
HR200B1005—heat recovery ventilator 200cfm with built in defrost  
ER150B2006—energy recovery ventilator 150cfm with built in defrost  
ER150C2004—energy recovery ventilator 150cfm with no defrost  
ER200B2006—heat recovery ventilator 200cfm with built in defrost  
ER200C2004—heat recovery ventilator 200cfm with no defrost  
EARD5—5” round damper NC Power Open/Spring Close  
EARD6—6” round damper NC Power Open/Spring Close  
EARD7—7” round damper NC Power Open/Spring Close  
EARD8—8” round damper NC Power Open/Spring Close  
Following is a list of compatible communicating products.  
Table 19. Communicating Products  
THM5421C—Equipment Interface Module Universal up to 4H2C systems  
T8635L1013*—3H3C communicating Thermostat  
W8635A1006—Equipment Interface Module for 2H2C conventional systems  
W8635B1004—Equipment Interface Module for 2H2C heat pump systems  
W8735A1005—EnviraCOM Serial Port Adapter  
W8735B1003—Telephone Access Module  
W8735D1009—Telephone Access Module two Channel communicating  
W8735D1017—Telephone Access Module four channel communicating  
W8835A1004—Envirazone Zone Panel  
C7835A1009—Communicating Discharge Air Sensor  
W8703A1003—Damper Interface Module  
L7224C1004—120VAC Electronic Aquastat  
L7248—Aquastat  
R7184—Oil Primary  
*
T8635L thermostats used with TH9421C thermostats must be used with a W8835A Zone Panel and the TH9421C must be the  
Master Zone Controller (zone 1 thermostat)  
Table 20. UV Lights  
UV100E2009  
UV100E1043  
UV100E3007  
39  
68-0287—04  
href="
VISIONPRO® IAQ TOTAL HOME COMFORT SYSTEM  
Automation and Control Solutions  
Honeywell International Inc.  
1985 Douglas Drive North  
Golden Valley, MN 55422  
Honeywell Limited-Honeywell Limitée  
3
5 Dynamic Drive  
®
©
U.S. Registered Trademark  
2011 Honeywell International Inc.  
Toronto, Ontario M1V 4Z9  
customer.honeywell.com  
US Patent No. 6,208,263; 6,373,376; 6,448,901; 6,926,076;  
7
6
,044,397; D509151; H25192; H25193 and other patents pending  
8-0287—04 M.S. Rev. 03-11  
Printed in U.S.A.  

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