Carrier 33CS400 01 Thermostat User Manual

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OWNER’S  
MANUAL  
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P // N33CS400-01  
DIGITAL  
IGITAL  
THERMOSTAT  
NON-PROGRAMMABLE  
HEAT  
I2:00Pm  
Su  
HEAT  
74  
COOL  
COOL  
AUTO  
&
PUMP  
HEAT  
72  
3
22 CC oo oo ll SS tt aa gg ee ss  
BacklitDisplay&Button  
Legends  
AuxHeatIndicator  
DryContactEquipped  
SetPointLimiting  
RemoteSensorReady  
OutdoorSensorReady  
AcceptsEZProgrammer  
AcceptsOptionalHumidityModule:  
ControlsHumidification,  
DehumidificationandReheat  
AcceptsOptionalIRRemoteControl  
Accepts the OPTIONAL  
HUMIDITY MODULE  
Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage  
Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.  
Carrier Corporation 04/06  
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CAUTION  
Follow the Installation Instructions before proceeding.  
Set the thermostat mode to “OFF” prior to changing  
settings in setup or restoring Factory Defaults.  
CAUTION  
NEVER PUT MORE THAN ONE  
JUMPER ON THE SAME MISC  
JUMPER BLOCK!  
THIS MAY DAMAGE YOUR  
THERMOSTAT.  
MISC3  
MISC3  
OK  
NOTE: Due to variations in environmental conditions, it is not  
always possible to achieve the desired humidification or  
dehumidification setpoint.  
This device complies with Part 15 of the FCC Rules. Operation is  
subject to the following two conditions: (1) this device may not cause  
harmful interference, and (2) this device must accept any interference  
received, including interference that may cause undesired operation.  
Thermostat  
33CS400-01  
Tested to Comply  
c
with FCC Standards  
FC  
FOR HOME OR OFFICE USE  
4Z95  
Page i  
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The Table of Contents divides the thermostat features into sections  
making it easier to quickly find information.  
The first page of each section contains a more detailed list of the  
contents within that section, such as the example page shown below.  
SECTION 14  
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Header shows section #  
and title of section  
Section 14 Contents:  
Adjusting the Heat/Cool  
Differential..............................14.2  
Adjusting the Cycles  
Per Hour..................................14.3  
Section contents  
Adjusting the Deadband..........14.4  
Adjusting the Minutes of  
Run-Time Before the  
14  
Next Stage...............................14.6  
Selecting 2nd Stage Turn  
Visible section tab  
on the side of the  
page  
Off Temperature.....................14.7  
Section and page #  
Page 14.1  
In addition, this manual also has an Index to help you find any information  
regarding this thermostat quickly.  
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Auto-Changeover: A mode in which the thermostat will turn on  
the heating or cooling based on room temperature demand.  
Configurable Output Jumper: Using jumpers on the thermostat  
you can configure the MISC1, MISC2, and MISC3 terminals to  
control humidification, dehumidification, and 2nd stage cooling.  
Cool Setpoint: The warmest temperature that the space should  
rise to before cooling is turned on (without regards to  
deadband).  
Deadband: The number of degrees the thermostat will wait, once  
setpoint has been reached, before energizing heating or cooling.  
Dehumidify: To reduce the amount of moisture in the air.  
Differential: The forced temperature difference between the  
heat setpoint and the cool setpoint.  
Heat Setpoint: The coolest temperature that the space should  
drop to before heating is turned on (without regards to  
deadband).  
Humidify: To increase the amount of moisture in the air.  
Icon: The word or symbol that appears on the thermostat  
display.  
Mode: The current operating condition of the thermostat (i.e. Off,  
Heat, Cool, Auto).  
Non-Programmable Thermostat: A thermostat that does not  
have the capability of running the Time Period Programming.  
Temperature Swing: Same as Deadband.  
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Quick Start  
1
2
3
4
5
6
7
8
9
Getting to Know Your  
Thermostat  
Basic Operation  
Viewing Temperature  
and Humidity Sensors  
Override Operation  
Programming the  
Fan Operation  
Thermostat Display  
Options  
Humidification  
Dehumidification  
Viewing Equipment  
Run-Times  
1
0
Electric Heat and  
Heat Pump Operation 11  
Timers and Deadbands 12  
Programming Remote  
Sensor Operation  
13  
Programming the Dry  
Contact  
1
4
Programming the Run-  
Time Alerts  
1
5
Configuring the MISC  
Outputs  
16  
Factory Defaults,  
Calibration, and Sensors 17  
Accessories  
18  
Advanced Setup Table  
1
9
Page iv  
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SECTION 1  
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1
Section 1 Contents:  
Selecting the Heat or Cool  
Mode............................................1.2  
Selecting Your Desired  
Temperature................................1.3  
Using the Fan Button...................1.3  
Note: Following the instructions in this section will allow you to  
operate your thermostat using the factory default settings. These  
settings are depicted in the illustrations throughout this manual.  
Page 1.1  
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1
Select Mode by Pressing the MODE Button  
Heating Only  
The HEAT setting indicates the  
temperature the room has to  
reach before the furnace will  
turn on to heat the room.  
HEAT  
Press  
70  
68  
MODE  
Cooling Only  
76  
COOL  
The COOL setting indicates the  
temperature the room has to  
reach before the air conditioner  
will turn on to cool the room.  
Press  
70  
MODE  
Heating or Cooling  
AUTO will automatically select  
heat or cool based on room  
temperature demand.  
76  
COOL  
AUTO  
HEAT  
70  
68  
Press  
MODE  
Off  
OFF indicates both heating  
and air conditioning  
systems are turned off.  
OFF  
70  
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AUTO MODE  
Pressing the UP or DOWN buttons in Auto mode  
will adjust both the heat and cool set temperatures  
simultaneously.  
Adjust the desired  
set temperature with the  
76  
COOL  
AUTO  
HEAT  
70  
68  
buttons.  
HEAT OR COOL MODE  
Pressing the UP or DOWN buttons in Heat or Cool mode will  
adjust only the heat or cool set temperature.  
Adjust the desired  
set temperature with the  
76  
COOL  
70  
buttons.  
Press  
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FAN  
Fan On indicates constant fan operation.  
If Fan On is selected the fan will run  
continuously at all times, except in Off,  
and will only run if there is a heating or  
cooling demand in Unoccupied periods.  
Pressing the FAN button toggles this  
feature on or off.  
76  
COOL  
AUTO  
HEAT  
FanOn 70 68  
Page 1.3  
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SECTION 2  
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2
Section 2 Contents:  
Front Panel Buttons.....................2.2  
Display Features...........................2.3  
Page 2.1  
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2
Warmer Button sometimes referred  
(glows red) to as the UP button  
[ ]  
Backlit LCD Display  
Carrier  
I2:00Pm  
Su  
74  
COOL  
AUTO  
HEAT  
72  
Cooler Button sometimes refer-  
(glows blue)  
red to as the  
[
]
DOWN button  
Override  
Heat or Cool Demand Indicator  
Red = Heat, Green = Cool  
Button  
Commercial  
Thermostat  
74  
COOL  
AUTO  
HEAT  
72  
MODE HUMIDITY  
FAN  
OUTSIDE RESET  
FILTER  
OVER  
RIDE  
QUICK RELEASE FOR  
ACCESSORY PORT  
pg. 18.1)  
(
MODE HUMIDITY  
FAN  
OUTSIDE  
RESET  
FILTER  
Page 2.2  
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2
2
Setup  
DeHumidify 88  
Service Filter  
Pan UV Light  
AUTO  
COOL  
Outside  
Remote  
OFFON  
AUXHEAT  
Override  
FanOn I88 88  
Mode Indicators - Section 3  
Selects the operational mode of the equipment.  
HEAT - Indicates the heating mode.  
COOL - Indicates the air conditioning mode.  
AUTO - Indicates the system will automatically changeover  
between heat and cool modes as the temperature varies.  
OFF - Indicates heating and cooling is turned off.  
Room Temperature Display - Section 4  
Indicates the current room temperature and displays the outside  
temperature when selected.  
Desired Set Temperature - Section 3/4  
Indicates desired room temperature(s). Also displays the daily  
maximum and minimum outside temperatures.  
Outside icon - Section 4  
Indicates the temperature displayed is from the optional outside  
sensor.  
Override icon - Section 5  
Indicates the Unoccupied mode of the thermostat is being overriden  
for up to 4 hours.  
Page 2.3  
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2
2
Setup  
DeHumidify 88  
Service Filter  
Pan UV Light  
AUTO  
COOL  
Outside  
Remote  
OFFON  
AUXHEAT  
Override  
FanOn I88 88  
Setup icon - Sections 6-15  
Indicates the thermostat is in the setup mode.  
Fan On icon - Section 6  
Indicates constant, continuous fan operation. When Fan On is not  
lit - indicates the fan will only operate when necessary to heat or to  
cool.  
Service Filter icon - Section 15  
Appears when the filter should be serviced under normal conditions.  
Adjustable from 0 - 1950 hours of blower operation.  
icon - Section 7  
Indicates keypad has been locked.  
UV Light icon - Section 10/15  
Appears when the UV bulb should be serviced under normal  
conditions. Adjustable from 0 - 1950 days of operation.  
Remote icon - Pages 4.2, 13.3 & 17.3  
Indicates the remote sensor reading of the thermostat is being  
viewed.  
Page 2.4  
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2
Setup  
DeHumidify 88  
Service Filter  
Pan UV Light  
AUTO  
COOL  
Outside  
Remote  
OFFON  
AUXHEAT  
Override  
FanOn I88 88  
AuxHeat icon - Page 12.4  
Indicates 2nd stage electric strip heat is being used when the  
thermostat is programmed for Heat Pump operation.  
Humidify/DeHumidify icon - Sections 8-9  
Indicates the system is currently humidifying/dehumidifying the air.  
Service Pan icon - Section 14  
Indicates that a sensor (accessory) has detected the condensate  
drain pan is full and the compressor (Y1) has been locked out.  
Page 2.5  
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SECTION 3  
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3
Section 3 Contents:  
Programming for Auto or  
Manual Operation......................3.2  
Selecting the Proper  
Operating Mode.........................3.3  
Selecting Your Desired  
Temperature...............................3.5  
Note: During setup & programming pressing the UP or DOWN  
buttons will modify the flashing selection.  
Page 3.1  
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3
When the very simplest operation is desired, this thermostat may  
be configured to be a manual heat and cool thermostat. Follow the  
step below.  
The thermostat may be programmed to function as a Heat Only or  
Cool Only thermostat by selecting ‘NO’ in the setup screen below.  
This will lockout the Auto-Changeover screen and only allow the Off,  
Heat, and Cool screens to be accessed.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
YES  
Select Yes if you would  
I
like the thermostat to  
be Auto-Changeover or  
No for a Heat Only and  
Cool Only Thermostat.  
AUTO  
Press  
NO  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
Page 3.2  
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3
MANUAL-CHANGEOVER - If the thermostat is configured to be Manual-  
Changeover, the following screens will be available by pressing the  
MODE button.  
Select the Mode by Pressing the MODE Button  
Heating Only  
The HEAT setting indicates the  
temperature the room has to  
reach before the furnace will  
turn on to heat the room.  
HEAT  
70  
68  
Press  
MODE  
Cooling Only  
76  
COOL  
The COOL setting indicates the  
temperature the room has to  
reach before the air conditioner  
will turn on to cool the room.  
70  
Press  
MODE  
Off  
OFF indicates both heating  
and air conditioning  
OFF  
systems are turned off.  
70  
Page 3.3  
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AUTO-CHANGEOVER - If the thermostat is configured to be Auto-  
Changeover, the following screens will be available by pressing  
the MODE button.  
3
Select the Mode by Pressing the MODE Button  
Heating Only  
The HEAT setting indicates the  
temperature the room has to  
reach before the furnace will  
turn on to heat the room.  
HEAT  
70  
68  
Press  
MODE  
Cooling Only  
76  
COOL  
The COOL setting indicates the  
temperature the room has to  
reach before the air conditioner  
will turn on to cool the room.  
70  
Press  
MODE  
Heating or Cooling  
76  
COOL  
AUTO will automatically select  
heat or cool based on room  
temperature demand.  
AUTO  
HEAT  
70  
68  
Press  
MODE  
Off  
OFF indicates both heating  
and air conditioning  
systems are turned off.  
OFF  
70  
Page 3.4  
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AUTO MODE  
3
Pressing the UP or DOWN buttons in Auto mode  
will adjust both the heat and cool set temperatures  
simultaneously. For more information on this see page 12.2.  
Adjust the desired  
set temperature with the  
76  
COOL  
AUTO  
HEAT  
70  
68  
buttons.  
HEAT OR COOL MODE  
Pressing the UP or DOWN buttons in Heat or Cool modes will  
adjust only the heat or cool set temperature.  
Adjust the desired  
set temperature with the  
76  
COOL  
70  
buttons.  
Page 3.5  
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SECTION 4  
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4
Section 4 Contents:  
Viewing the Outside  
Temperature..............................4.2  
Viewing the Indoor  
Humidity....................................4.3  
Page 4.1  
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Requires an outside sensor (optional accessory) to be installed  
(see page 13.2 for wiring instructions). To read the temperature  
from the outside sensor, press the OUTSIDE button. The display  
will then show the current outside temperature.  
4
AN  
OUTSIDE RESE  
FILTE  
Press the OUTSIDE  
button to view  
the Outside  
temperature.  
The current outside  
temperature will be  
displayed.  
Outside  
Current outside  
temperature.  
This reading is from the  
sensor connected to RS2.  
83  
Press  
MODE  
This reading is from  
the sensor connected  
to RS1.  
78  
M
A
O
N
O
U
TSIDE RESE  
Press the OUTSIDE  
FILTE  
button to leave the  
Outside temperature  
screen.  
Note: If no sensors are connected 2 dashes [- -] will appear on the display.  
Page 4.2  
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Requires the Humidity Module (optional accessory) to be installed.  
To display the current humidity at the thermostat, press the  
HUMIDITY button. The display will then show the current indoor  
4
humidity along with the humidification setpoint (Section 8).  
Note: The humidity reading will not appear unless the Humidity  
Module has been installed. If the Humidity Module has not been  
installed dashes will appear in place of the humidity reading.  
To view the indoor humidity  
HUMIDITY  
reading, press the  
HUMIDITY button  
Setup  
Current Room Humidity  
40  
Humidify  
I
0
Press  
HUMIDITY  
Press the HUMIDITY button  
again to return the display  
to normal operation.  
NOTE: Due to variations in environmental conditions, it is not always possible  
to achieve the desired humidification or dehumidification setpoint.  
Page 4.3  
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SECTION 5  
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The OVERRIDE button may only be used when the Dry Contact has  
forced the thermostat into the Unoccupied mode.  
Unoccupied Operation - During a Dry Contact forced  
unoccupied period pressing the OVERRIDE button will  
temporarily force the thermostat into the mode it was in before  
the Dry Contact forced it into the Unoccupied mode.  
For example: If the thermostat was in the Auto mode and the  
Dry Contact forced the thermostat into the Unoccupied mode,  
then pressing the OVERRIDE button will force the thermostat  
back into the Auto mode.  
The remaining override time will be displayed in the upper left  
hand corner of the display. The override timer can be set up to a  
maximum of four (4:00) hours, in increments of 30 minutes. If the  
timer has been set for the maximum time, the next press of the  
OVERRIDE button will reset the timer, returning the thermostat to  
the Unoccupied mode.  
To adjust the setpoints for the Unoccupied mode, see page 15.4.  
85  
COOL  
Unoccupied  
HEAT  
65  
55  
Press  
OVERRIDE  
:
30  
74  
COOL  
AUTO  
HEAT  
Override  
65  
72  
Page 5.1  
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SECTION 6  
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Section 6 Contents:  
6
Using the Fan Button.................6.2  
Smart Fan Operation..................6.2  
Setting the Fan-Off Time  
Delay..........................................6.3  
Page 6.1  
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When the fan is set for automatic operation it will energize any time  
there is a call for heating or cooling, otherwise the fan will remain off.  
Pressing the FAN button will energize the fan and display the FanOn  
icon on the thermostat display. To operate the fan in the automatic  
mode, press the FAN button again and the FanOn icon will disappear.  
Press  
6
FAN  
Fan On indicates constant fan operation.  
If Fan On is selected the fan will run  
76  
COOL  
continuously at all times, except in Off,  
and will only run if there is a heating or  
cooling demand in Unoccupied periods.  
Pressing the FAN button toggles this  
AUTO  
HEAT  
FanOn 70 68 feature on or off.  
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This feature allows the fan to run continuously in Heat, Cool or  
Auto mode, and automatically de-energize during dry contact initiated  
Unoccupied periods (see page 14.3), except when necessary to  
heat or cool. To use this feature, place the thermostat in the Heat,  
Cool or Auto mode. Next, press the FAN button to display the  
FanOn icon (see below).  
Press  
FAN  
76  
COOL  
AUTO  
HEAT  
FanOn 70 68  
Page 6.2  
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To increase cooling efficiency of your unit, the thermostat may be  
programmed to continue running the fan after a call for cooling has  
been satisfied. This delay may be set for 30, 60, or 90 seconds. If  
the Fan Off Delay is set for zero seconds, the fan will not energize  
after a call for cooling has been satisfied.  
6
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
:
00  
2
Set the Fan Off Delay  
to 0, 30, 60, or 90  
seconds.  
Press  
FanOn  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
Page 6.3  
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SECTION 7  
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Section 7 Contents:  
Turning On/Off the  
7
Backlight...................................7.2  
Programming the Thermostat  
to Display Temperature in  
Fahrenheit or Celsius..............7.2  
Locking/Unlocking the  
Keypad......................................7.3  
Programming a Security  
Level..........................................7.4  
Page 7.1  
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MODE  
Press the MODE button. While holding  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
7
3
Select backlight operation:  
ON - Light continuously.  
OFF - Light for 8 seconds  
after a button press.  
ON  
Press  
MODE  
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TT ee mm pp ee rr aa tt uu rr ee ii nn FF aa hh rr ee nn hh ee ii tt oo rr CC ee ll ss ii uu ss  
Setup  
C
4
Select thermostat  
operation in degrees  
Fahrenheit or Celsius.  
F
f
Press  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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To prevent unauthorized use of the thermostat, the front panel  
buttons may be disabled. To disable, or ‘lock’ the keypad, press  
and hold the MODE button. While holding the MODE button,  
press the UP and DOWN buttons together. The  
appear on the display, then release the buttons.  
icon will  
7
Press all three  
85  
COOL  
buttons in the order  
AUTO  
outlined above for  
HEAT  
keypad lockout  
MODE  
65  
55  
To unlock the keypad, press and hold the MODE button. While  
holding the MODE button, press the UP and DOWN buttons  
together. The icon will disappear from the display, then  
release the buttons.  
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When a security level has been programmed, the thermostat will allow  
limited adjustment to the setpoints (steps # 6 and 7). In security  
levels 2 and 3, the thermostat is forced into the Program On mode.  
To disable the security feature, set the value in step #5 to 0; this will  
cause steps # 6 and 7 not to appear.  
MODE  
Press the MODE button. While holding Note: Press the MODE  
button momentarily  
the MODE, press the HUMIDITY button  
to move through the  
7
setup screens. Press  
HUMIDITY  
to enter Setup screens.  
and hold the MODE  
button to move back-  
Press the MODE button repeatedly  
until this setup screen appears.  
wards through the  
setup screens.  
MODE  
Setup  
Select the security level:  
0
1
2
=No security in effect  
5
=Setpoint range limited  
=1+ locked in current  
mode.  
3
=2 + prohibits setpoint  
changes  
Press  
0
MODE  
Step #6 appears only  
if step #5 is not 0.  
Setup  
HI  
6
Adjust the maximum  
allowable heat setpoint  
when security is in effect.  
HEAT  
(
35 - 99 )  
Press  
8
0
Step #7 appears only  
if step #5 is not 0.  
MODE  
Setup  
Adjust the minimum  
7
allowable cool setpoint  
when security is in effect.  
COOL  
(
35 - 99 )  
LO  
Press  
65  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
Page 7.4  
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SECTION 8  
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Section 8 Contents:  
Installing the Humidity  
Module.......................................8.2  
8
Setting a Thermostat Jumper  
for Humidity Operation............8.3  
Adjusting the Humidification  
Setpoint.....................................8.4  
NOTE: The humidification functions described in this section will  
only be available if a Humidity Module has been properly installed.  
Disclaimer:  
The manufacturer of this thermostat cannot be liable for  
misinstallation, improper connection or improper programming of  
the humidity functions of this thermostat that may result in water  
damage or mold growth.  
Additionally, the manufacturer of this thermostat is not responsible  
for the fitness of the humidifier and/or installation of said humidifier  
connected to this thermostat. Furthermore, the maintenance of the  
humidifier components, including but not limited to, the filters and  
pads are not the responsibility of the thermostat manufacturer.  
The Humidifier Service icon is only a suggestive reminder and  
should not take the place of the humidifier manufacturer’s  
required maintenance requirements and schedule.  
Page 8.1  
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To install the Humidity Module the thermostat must be detached  
from the back plate. Plug the Humidity Module into the Humidity  
Module connector as shown in Figure 2 below. Follow the detailed  
instructions included with the Humidity Module accessory. Once the  
Humidity Module has been installed, you must adjust the Humidity  
jumper setting to HUM as shown in Figure 1 below. This will allow  
you to access the humidification and dehumidification setup steps.  
For proper humidity operation, this  
jumper must be set for HUM.  
Figure 1  
8
Back of 33CS400-01  
HUM  
ELEC  
GAS  
OR  
HP  
HUM  
DEHUM  
ECON  
GAS  
NO HUM  
MISC3 MISC2 MISC1  
(
O
M
YNI SL2CY 1)  
B
W1  
W2  
Y1  
G
MISC1  
RS2  
MISC2  
CK1  
CKGND  
R
MISC3  
RS+5  
Rs1  
MOID
RSGND  
EL
C
Install the Humidity Module  
(see Humidity Module Instruction  
Sheet for more detailed information).  
Figure 2  
Humidity Module  
Plug located on  
the Thermostat  
Circuit Board.  
Humidity Module  
Thermostat Circuit  
Board.  
Page 8.2  
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To control a MISC output for humidification, place the MISC1, MISC2,  
or MISC3 jumper on the terminal labeled HUM (see diagram below).  
This will supply 24VAC to the selected MISC terminal based on the  
humidification programming in the following pages. Only one of the  
three outputs (MISC1, MISC2, or MISC3) is required to have this  
jumper. For more information regarding the MISC1, MISC2, and  
MISC3 outputs, please see Section 16.  
8
In the diagram below, the MISC3 jumper  
has been set for HUM (humidify) operation.  
ELEC  
GAS  
HP  
HUM  
GAS  
DEHUM  
MISC3 MISC2 MISC1  
O
NLY)  
B
HUM  
W1  
W2  
Y1  
G
MISC1  
Rs2  
DEHUM  
MISC2  
CK1  
CKGND  
R
MISC3  
RS+5  
Rs1  
MOI DN
EL
RSGND  
C
MISC3
IMPORTANT CAUTION  
NEVER PUT MORE THAN ONE JUMPER  
ON THE SAME MISC JUMPER BLOCK!  
THIS MAY DAMAGE THE THERMOSTAT  
AND VOID YOUR WARRANTY  
MISC1  
MISC1  
OK  
Page 8.3  
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If your HVAC unit is equipped with a humidification system and the  
Humidity Module has been installed, the thermostat will provide power  
to the appropriate terminal on the backplate of the thermostat when  
the humidity in the home falls below the setpoint you have chosen.  
The value for this setpoint ranges from 0% to 60%.  
NOTE: Due to variations in environmental conditions, it is not always possible  
to achieve the desired humidification or dehumidification setpoint.  
8
Press the HUMIDITY  
button to enter the  
NOTE: Each step # is located at  
the top right corner of the  
HUMIDITY  
display for easy reference.  
Humidity Setup screen.  
Current Room Humidity  
Setup  
40  
Humidify  
I
Adjust the desired  
humidification setpoint  
(0%-60%)  
Press  
0
HUMIDITY  
Press the HUMIDITY button to leave the  
Humidity Control screens (if no buttons are  
pressed, the display will leave the Humidity  
Control screens after 30 seconds).  
Humidification Notes: Press the  
button to set the humidity  
setpoint to 0% for no humidification operation.  
You cannot set the dehumidify setpoint any lower than the humidify setpoint; a  
5
% differential is forced between the humidify and dehumidify setpoints.  
Page 8.4  
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SECTION 9  
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Section 9 Contents:  
Configuring a Thermostat Output  
Jumper for Dehumidification  
Operation...................................9.2  
9
Adjusting the Dehumidification  
Setpoint......................................9.3  
Using Your Air Conditioner  
to Dehumidify............................9.4  
Using the DEHUM  
Terminal.....................................9.5  
NOTE: The dehumidification functions described in this section will  
only be available if a Humidity Module has been properly installed.  
For instructions on installing the Humidity Module please see page 8.2.  
Page 9.1  
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To control a MISC output for dehumidification, install the Humidity  
Module and place the Humidity Jumper on HUM (see page 8.2).  
Then place the MISC1, MISC2, or MISC3 jumper on the terminal  
labeled DEHUM (see diagram below). This will supply 24VAC to the  
selected MISC terminal based on the programming in the following  
pages. Only one of the three outputs (MISC1, MISC2, or MISC3) is  
required to have a jumper. For more information regarding the  
MISC1, MISC2, and MISC3 outputs, please see section 16.  
9
In the diagram below, the MISC2 jumper has  
been set for DEHUM (dehumidification) operation.  
ELEC  
GAS  
HP  
HUM  
GAS  
DEHUM  
MISC3 MISC2 MISC1  
(
O
M
NI SLCY 1)  
B
HUM  
W1  
W2  
Y1  
G
MISC1  
Rs2  
DEHUM  
MISC2  
CK1  
CKGND  
R
MISC3  
RS+5  
Rs1  
MOI DN
EL
RSGND  
C
MISC2
IMPORTANT CAUTION  
NEVER PUT MORE THAN ONE JUMPER  
ON THE SAME MISC JUMPER BLOCK!  
THIS MAY DAMAGE THE THERMOSTAT  
AND VOID YOUR WARRANTY  
MISC1  
MISC1  
OK  
Page 9.2  
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Dehum Terminal: If a MISC terminal selected for DEHUM operation  
(see page 9.2) then the thermostat will provide power to this terminal  
the when the humidity in the home is above the setpoint you have  
chosen. See page 9.6 for detailed programming instructions. To utilize  
this feature your HVAC unit must be equipped with a DEHUM terminal.  
Cool to Dehumidify: If the thermostat is programmed for Cool to  
Dehumidify operation, then the thermostat will energize the cooling  
system any time the humidity in the home is above the setpoint you  
have chosen. See page 9.4 for detailed programming instructions.  
In each case, when the indoor humidity falls below the setpoint you  
have selected, Cool to Dehumidify and the MISC terminal will be  
de-energized. The value for this setpoint ranges from 25% to 99%.  
9
NOTE: Due to variations in environmental conditions, it is not always  
possible to achieve the desired humidification or dehumidification setpoint.  
Press the HUMIDITY button  
HUMIDITY  
NOTE: Each step # is located at  
to enter the Humidification  
the top right corner of the  
Setup screens.  
display for easy reference.  
MODE  
Press the MODE button once  
Current Room Humidity  
Setup  
ON / +  
40  
DeHumidify  
2
Adjust the desired  
dehumidification setpoint  
Press  
(25%-99%)  
HUMIDITY  
OFF / -  
99  
Press the HUMIDITY button to leave the Humidity  
Control screens (if no buttons are pressed, the display  
will leave the Humidity Control screens after 30 seconds).  
Dehumidification Notes: Press the  
button to set the  
dehumidification setpoint to 99% for no dehumidification operation.  
This will lockout Advanced Setup steps 8 and 9 (see page 9.4).  
You cannot set the dehumidify setpoint any lower than the humidify setpoint; a  
5
% differential is forced between the humidify and dehumidify setpoints.  
Page 9.3  
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If Cool to Dehumidify is on and the Humidity Module is installed,  
the thermostat has the ability to initiate a cooling cycle for advanced  
dehumidification operation. When the thermostat detects the humidity  
percentage is above the setpoint for dehumidification, and heating or  
cooling is not on, the thermostat will force the compressor to run with  
the fan, thus reducing moisture in the air. The green LED will blink  
once every eight seconds to indicate this is taking place. This feature  
will also allow you to adjust the cooling overshoot of the setpoint, from  
0° to 5° (adjustable in step #9). For Example: If the cooling overshoot is  
set for 3°F and the cooling setpoint is set for 74°F, then as long as the room  
temperature reads between 71°F and 74°F this feature will energize the  
compressor and fan to dehumidify the air.  
Note: Press the MODE  
Press the MODE button. While holding button momentarily  
9
MODE  
the MODE, press the HUMIDITY button to move through the  
setup screens. Press  
to enter Setup screens.  
and hold the MODE  
HUMIDITY  
button to move back-  
wards through the  
Press the MODE button repeatedly  
setup screens.  
MODE  
until this setup screen appears.  
Steps 8 and 9 only appear if the Dehumidification  
setpoint is not 99% (see page 9.3).  
Setup  
On  
DeHumidify  
8
Select Cool to  
Dehumidify feature.  
OFF  
Press  
Off  
MODE  
Step 9 appears only if step 8 is set to “ON”  
Setup  
DeHumidify  
9
Adjust the maximum  
overshoot of the set  
temperature in Cool to  
Dehumidify mode.  
COOL  
Press  
HUMIDITY  
(0 - 5 )  
3
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
Dehumidification Notes: The thermostat must be in the Cool or Auto  
mode for the Cool to Dehumidify feature to be available.  
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If you configure a MISC output jumper for DEHUM, it may be  
programmed to operate in one of two ways:  
1
) Normally Closed (NC): The thermostat will de-energize the  
DEHUM terminal to allow the fan to run in low speed when there  
is a call for 1st stage cooling and the room humidity is greater than  
the dehumidification setpoint.  
2
) Normally Open (NO): The thermostat will energize the DEHUM  
terminal to allow the fan to run in low speed when there is a call  
for 1st stage cooling only and the room humidity is greater  
than the dehumidification setpoint.  
9
Note: Press the MODE  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
NC  
Normally Closed (NC) =  
DEHUM de-energized for  
low speed fan.  
DeHumidify  
I0  
Normally Open (NO) =  
DEHUM energized for  
low speed fan.  
Press  
NO  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
Dehumidification Notes: The DEHUM terminal will “release” and allow  
the fan to operate normally if there is call for 2nd stage cooling or if the call  
for Cooling and/or Cool to Dehumidify has been satisfied.  
Page 9.5  
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Section 10 Contents:  
Viewing the Override  
Run-Time.................................10.2  
Viewing the Humidifier  
Run-Time................................ 10.3  
1
0
Viewing the UV Light  
Run-Time.................................10.4  
Page 10.1  
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This display will track the number of hours that your thermostat has  
been operating in the Override mode (see page 5.1). Press the FAN  
button to reset the counter.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
0
Press  
1
0
Counts the number of  
hours Override has  
been active. Press FAN  
to reset the Override Run-  
Time counter.  
I i  
FAN  
Override  
Press  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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After your humidification system has been operating for the number of  
days set in step #12 below, the Service Humidify icon will appear. This  
counter keeps track of the number of days since the Service Humidify  
icon was reset.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
1
0
Setup  
Counts the number of  
0
Press days the humidifier has  
been running. Press  
FAN to reset the  
Humidify  
I2  
Service  
Service Humidify  
FAN  
counter and remove the  
icon from the display.  
Press  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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After the UV light has been operating for the number of days set in  
step #13 below, the Service UV Light icon will appear. This counter  
keeps track of the number of days since the UV light icon was last  
reset.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
1
0
Setup  
0
Counts the number of days  
since the UV Light was last  
reset. Press FAN to reset  
the Service UV Light counter  
and remove the icon from the  
display.  
Press  
Service  
UV Light  
I3  
FAN  
Press  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
Page 10.4  
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SECTION 11  
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Section 11 Contents:  
Viewing the Heat Pump and  
Reversing Valve Jumper  
Setting.....................................11.2  
Viewing the Electric Heat  
11  
Jumper Setting.......................11.3  
Using Emergency Heat............11.4  
Page 11.1  
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Steps 14 and 15 are ‘Read Only’ and may only be set with the  
jumpers on the circuit board of the thermostat.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
1
1
I4  
ON = Heat Pump  
operation  
OFF  
OFF = Gas Electric  
operation  
Press  
Setup  
MODE  
Indicates that the  
thermostat jumper  
is set for an O  
I5  
reversing valve  
(
energize in cooling)  
or a b reversing valve  
energize in heating).  
(
Press  
O
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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Placing the jumper on ELEC will cause the thermostat to turn on the  
fan immediately any time there is a heat demand. Since most gas  
furnaces control the fan, this feature should be off unless it is  
necessary for the thermostat to energize the fan with first stage heat.  
Step 16 is ‘Read Only’ and may only be set with the jumpers on the  
circuit board of the thermostat.  
Note: Press the MODE  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
11  
Setup  
ON indicates that the  
I6  
thermostat jumper is  
set for Electric Heat  
operation, or OFF for  
Gas/Electric or Heat  
Pump operation.  
OFF  
Press  
EH  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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ENTER EMERGENCY HEAT: Only available if you have a Heat Pump  
installed. To initiate the Emergency Heat feature, press the FAN  
button. While holding the FAN button press the UP button. The  
Cool setpoint display will read ‘EH’ (emergency heat).  
Press for  
Emergency Heat  
HEAT  
73  
74  
FAN  
1
1
OPERATION: During Emergency Heat operation the  
thermostat will turn on the fan and the 2nd stage of heat  
when there is a demand for heat. Also during Emergency  
Heat the 1st stage of heating or cooling will be unavailable.  
EXIT EMERGENCY HEAT: Follow the same steps as entering  
Emergency Heat by pressing the FAN and UP buttons. During  
Emergency Heat, only OFF and HEAT modes are available by  
pressing the MODE button.  
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SECTION 12  
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Section 12 Contents:  
Adjusting the Heat/Cool  
Differential..............................12.2  
Adjusting the Cycles  
Per Hour..................................12.3  
Adjusting the Deadband..........12.4  
Selecting 2nd Stage Turn  
12  
Off Temperature.....................12.6  
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The Heat and Cool setpoints will not be allowed to come any closer to  
each other than the value in this step. This minimum difference is  
enforced during Auto-Changeover operation.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
Adjust the minimum  
difference between  
cooling & heating  
setpoints.  
I7  
COOL  
HEAT  
(0 - 6 )  
1
2
Press  
2
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons  
are pressed, the display will leave the setup screens after 30 seconds.  
Note: To increase the spread between the heating and cooling  
setpoints, press the MODE button until only the heat setpoint is  
displayed. Adjust the desired setpoint. Wait two seconds after  
adjusting the set point so the thermostat can accept the change.  
Press the MODE button until only the cool setpoint is displayed.  
Adjust the desired setpoint. Wait two seconds after adjusting the  
set point so the thermostat can accept the change. Press the  
MODE button again to enter the Auto-Changeover mode where  
both the heat and cool setpoints are displayed.  
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The Cycles Per Hour setting may limit the number of times per hour  
your HVAC unit may energize. For example, at a setting of 6 cycles  
per hour the HVAC unit will only be allowed to energize once every 10  
minutes. The Cycles Per Hour limit may be overridden and reset by  
pressing the UP or DOWN buttons on the thermostat.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
Select the cycles per  
hour limit.  
I8  
d=cycles per hour  
limit defeated.  
12  
d1=d + defeat 5 min.  
compressor lockout.  
Press  
(d1, d, 2 - 6)  
6
Cy  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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MULTI-STAGE OPERATION - Controls up to two Heat and two Cool  
stages.  
The 2nd Stage of heat or cool is turned on when:  
(A) The 1st Stage has been on for the two minutes.  
And  
(
B) The temperature spread from the setpoint is equal to or greater  
than: the setpoint plus the 1st stage deadband (step #19, next  
page), plus two degrees.  
Heating  
Cooling  
Deadband  
Deadband  
Deadband  
Deadband  
db 2  
db 1  
db 1  
db 2  
(adj. 0-10 )  
(adj. 1-6 )  
(adj. 1-6 )  
(adj. 0-10 )  
1
2
2nd Stage  
turn on  
1st Stage  
turn on  
Heat  
Cool  
1st Stage  
turn on  
2nd Stage  
turn on  
Setpoint Setpoint  
DECREASE  
TEMPERATURE  
INCREASE  
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For more detailed information, please see the explanation on the  
previous page.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
Adjust the deadband  
for the 1st stage.  
I9  
1
2
(1 - 6 )  
2
Press  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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If ON is selected, the second stage of cooling or heating will remain  
energized until the thermostat reaches the setpoint on the thermostat  
display.  
If OFF is selected, the second stage of cooling or heating will turn off  
after reaching the 1st stage deadband (see page 12.4 for more  
information).  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
1
2
On  
Setup  
Select On or Off:  
On - 2nd stage will  
remain on until  
20  
setpoint is reached.  
Off - 2nd stage will  
turn off after reaching  
OFF  
Off  
Press  
1
st stage deadband.  
2
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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SECTION 13  
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Section 13 Contents:  
Installing the Remote  
Sensors...................................13.2  
Controlling or Reading the  
Remote Temperature (RS1)...13.3  
1
3
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One wired or up to eight wireless remote sensors may be installed on  
the thermostat (RS1) to control the temperature in another room. If  
more than one wireless sensor is used on RS1, the thermostat will ave-  
rage the sensors to determine the displayed temperature reading. One  
wired or wireless remote sensor may be installed to read the outside  
temperature (RS2). If a sensor is connected to RS1 and is program-  
med to control the thermostat, the degree icon on the thermostat will  
blink once per second to indicate that a remote sensor reading is being  
displayed. The wired sensor can be connected to the thermostat with  
up to 150’ of 18 ga., 300’ of 20 ga., or 450’ of 22 ga. unshielded,  
thermostat wire. The wired sensor can be connected to the therm-  
ostat using a two or three wire installation. If a two wire installation is  
required, then RS+5 must be connected to RSGND (see below).  
This wire MUST be completely separated from the thermostat or  
any other control wiring and must NOT be in the same conduit  
as high voltage wiring.  
1
3
W2  
W1/O/B  
MISC1  
Rs2  
Y1  
G
MISC3  
RS+5  
RS1  
MISC2  
CK1  
CKGND  
R
RSGND  
C
RS-GND  
RS-GND  
RS  
RS  
RS  
RS  
RS1  
RS2  
See the Remote Sensor accessory for further details.  
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The thermostat may be programmed to only READ the remote sensor,  
or to CONTROL to the remote sensor. Refer to Advanced Setup step  
#
21, below.  
Read Only Sensor (RS1): If step #21 is set to only READ to the  
remote sensor, this temperature may be viewed by pressing the  
OUTSIDE button on the thermostat and then pressing the MODE  
button (see page 4.2).  
Control Sensor (RS1): If step #21 is set to CONTROL to the remote  
sensor, the thermostat will ignore the reading of its internal  
temperature sensor and only display the temperature reading from  
the remote sensor. The degree icon on the thermostat will blink  
once per second to indicate that a remote sensor reading is being  
displayed.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
13  
Note: Press the MODE  
HUMIDITY  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
YES  
Optional Remote Sensor:  
2 i  
YES = Control to Remote  
Sensor RS1.  
Remote  
NO = Read Only Remote  
Sensor RS1.  
Press  
NO  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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SECTION 14  
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Section 14 Contents:  
Dry Contact Operation............ 14.2  
Dry Contact Polarity.................14.2  
Dry Contact Programming.......14.3  
Override Operation...................14.4  
Random Start............................14.5  
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4
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If the dry contact is going to be used, select YES in step #22 below; if  
the dry contact is not going to be used, select NO. in step #22 below.  
DRY CONTACT POLARITY - The terminals may be set to be  
Normally Open (NO) or Normally Closed (NC) in step #23.  
If NO is selected the dry contact will operate when it is forced  
closed. If NC is selected, the dry contact will operate until it is  
forced open.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
YES  
22  
Set to YES if the dry  
contact will be used.  
Set to NO if the dry  
contact will not be used.  
14  
Press  
NO  
MODE  
Step 23 appears only if step 22 is “YES”.  
Setup  
NC  
23  
Dry Contact Polarity:  
Normally Closed (NC)  
Normally Open (NO)  
Press  
HUMIDITY  
NO  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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OVERRIDE OR SERVICE THE CONDENSATE DRAIN PAN - If  
Override is selected in step #24 (below), when the dry contact is  
energized the thermostat will be forced into or out of Unoccupied  
setpoints (next page) depending on the polarity of the Dry Contact.  
If Service Pan is selected, when the dry contact is energized the  
thermostat will lockout Y1 (compressor) and write Service Pan on  
the display.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Step 24 appears only if step 22 is “YES”.  
Service Pan  
Select Service Pan to  
Setup  
24  
lockout Y1 when the dry  
contact is energized.  
Select Override to enable  
Override setpoints when  
the dry contact is energized.  
Press  
HUMIDITY  
Override  
Override  
1
4
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
NOTE: If Service Pan is selected and the dry contact was closed at least once, the  
Service Pan icon will remain on the display to alert the user that a problem has  
occurred. This icon will be cleared once a button is pressed.  
Override  
Service Pan  
W2  
W1/O/B  
OR  
W2  
W1/O/B  
MISC1  
RS2  
Y1  
G
MISC1  
Rs2  
Y1  
G
MISC3  
RS+5  
RS1  
MISC2  
CK1  
CKGND  
R
MISC3  
RS+5  
RS1  
MISC2  
CK1  
CKGND  
R
RSGND  
RSGND  
C
C
Connect wires to a time  
clock or other device to  
force the thermostat into  
or out of Unoccupied.  
Connect wires to a device that  
will complete the circuit betw-  
een CK1 and CKGND when the  
Condensate Drain Pan is full.  
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UNOCCUPIED SETPOINTS - If Override is selected in step #24 (see  
previous page), when the dry contact is energized the thermostat  
will be forced into or out of Unoccupied setpoints. To adjust the  
Unoccupied setpoints follow the setup steps below.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
25  
COOL  
Adjust the cooling  
setpoint for unoccupied  
periods.  
Unoccupied  
(35 - 99, OF )  
85  
Press  
MODE  
14  
Setup  
2
6
Adjust the heating set-  
point for Unoccupied  
periods.  
Unoccupied  
HEAT  
(OF, 35 - 99 )  
55  
Press  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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This feature causes a 2 to 30 second delay before energizing  
the thermostat outputs after any of these events:  
Loss of Power to the thermostat: When power to the thermostat  
is interrupted and then restored, Random Start will lockout the  
outputs of the thermostat for a random amount of time. This  
delay helps to keep multiple thermostats from energizing their  
outputs at the same time after a power outage.  
Closure of the Dry Contact to force Heat, Cool or Auto Modes:  
If step #24 (page 14.3) is programmed for Override, then  
Random Start will lockout all outputs of the thermostat for a  
random amount of time when a Dry Contact closure occurs  
(depending on step #23, page 14.2). This delay helps to keep  
multiple thermostats from energizing their outputs each time the  
Dry Contact is used.  
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4
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Section 15 Contents:  
Setting and Resetting the  
Service Filter (Fan Run-Time)  
Alert........................................15.2  
Setting and Resetting the UV  
Light Run-Time Alert.............15.3  
Setting and Resetting the  
Humidify Run-Time Alert......15.4  
1
5
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This counter keeps track of the number of hours of fan run-time  
whether the fan is energized in the Heating or Cooling modes, or in  
stand alone fan operation. The Service Filter icon will appear after the  
preset number of hours of fan run-time in step #28 (below) has been  
achieved. Setting this counter to zero in step #28 will prevent the  
Service Filter icon from ever appearing.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
RESET  
FILTER  
Press the RESET FILTER button  
to enter this setup screen.  
Hours the fan has  
run since last reset  
Setup  
0
Press  
27  
Service Filter  
Reset the counter to 0 to  
remove the Service Filter  
icon from the display.  
FAN  
Press  
MODE  
Setup  
0
Adjust the number of  
1
5
28  
hours, in increments of Service Filter  
0, the fan will run  
5
before the Service  
Filter icon appears on  
the display. 0 = off.  
Press  
HUMIDITY  
(0 - 1950 hours)  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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This counter keeps track of the number of days since the UV Light  
counter has been reset. The UV Light icon will appear after the  
number of days has been achieved, as shown in step #29 (below).  
Setting the counter to zero in Step #29 will prevent the Service UV  
Light icon from ever appearing.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Days since the UV Light  
icon has been reset  
Setup  
0
Press  
I3  
Service  
UV Light  
Reset the counter to 0 to  
remove the Service UV  
Light icon from the display.  
FAN  
1
5
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Setup  
0
29  
Adjust the number of days Service  
UV Light  
in increments of 10 before  
the UV Light icon appears  
on the display. 0 = off.  
Press  
(0 - 1990 days)  
HUMIDITY  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
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This counter keeps track of the number of days since the Service  
Humidify icon was last reset; this icon will appear after the number of  
days set in step #30 (below) has elapsed. Setting this counter to zero  
in step #30 will prevent the Service Humidify icon from ever appearing.  
MODE  
Press the MODE button. While holding  
the MODE, press the HUMIDITY button  
to enter Setup screens.  
Note: Press the MODE  
button momentarily  
to move through the  
setup screens. Press  
and hold the MODE  
button to move back-  
wards through the  
setup screens.  
HUMIDITY  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
Days since the last reset  
of the Service Humidify  
counter.  
Setup  
0
Humidify  
I2  
Service  
Press Reset the counter to 0 to  
remove the Service Humidify  
icon from the display.  
FAN  
Press the MODE button repeatedly  
until this setup screen appears.  
MODE  
1
5
Setup  
0
Adjust the number of days  
Humidify 30  
Service  
in increments of 10 before  
the Service Humidify icon  
appears.  
Press  
0
= Off  
HUMIDITY  
(0 - 1990 days)  
Press the HUMIDITY button to leave the Setup screens. If no buttons are  
pressed, the display will leave the setup screens after 30 seconds.  
The humidifier run-time alert does not take the place of  
any humidifier manufacturer’s recommended maintenance  
plan; it only serves as a helpful reminder.  
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Section 16 Contents:  
Configuring the Jumpers........16.2  
Explanation of Jumper  
Settings..................................16.3  
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6
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For additional flexibility, your thermostat has three configurable  
outputs. These outputs are designed to have different functions  
depending on how the jumpers are set (below).  
Each output, labeled MISC1, MISC2, and MISC3 may be set for one  
of the four choices available.  
In the diagram below, the MISC3 jumper has been set for HUM*  
(humidification) operation, the MISC2 jumper has been set for  
DEHUM* (dehumidification) operation, and the MISC1 jumper has  
been set for Y2 (second stage cooling) operation.  
ELEC  
GAS  
HP  
HUM  
DEHUM  
ECON  
GAS  
MISC3 MISC2 MISC1  
(
O
M
YNI SL2CY 1)  
B
HUM  
DEHUM  
ECON  
W1  
W2  
Y1  
G
MISC1  
RS2  
MISC2  
CK1  
CKGND  
R
MISC3  
RS+5  
Rs1  
Y2  
(MISC1  
MOI DN
EL
RSGND  
C
MISC3 MISC2 MISC1 ONLY)  
*
The Humidity Module (sold separately)  
must be installed to operate a humid-  
ification and/or dehumidification system.  
1
6
CAUTION  
NEVER PUT MORE THAN  
ONE JUMPER ON THE SAME  
MISC JUMPER BLOCK!  
DOING SO MAY DAMAGE  
YOUR THERMOSTAT.  
MISC3  
MISC3  
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HUM JUMPER SETTING  
If the jumper for MISC1, MISC2, or MISC3 is set to HUM, the corresponding MISC screw  
terminal on the backplate will control a humidification system.  
HUMIDIFICATION OPERATION - SECTION 8  
If your HVAC unit is equipped with a humidification system and the Humidity  
Module (sold separately) has been installed, the thermostat will provide power  
to the MISC1, MISC2, or MISC3 terminal of the thermostat when the humidity in  
the home falls below the humidity setpoint you have chosen. The value for this  
setpoint ranges from 0% to 60%. If no humidity is desired or if a humidification  
system has not been installed, set the value to 0%.  
DEHUM JUMPER SETTING  
If the jumper for MISC1, MISC2, or MISC3 is set to DEHUM, the corresponding MISC screw  
terminal on the backplate will be connected to the dehumidification terminal of a furnace board.  
NOTE: Not all furnaces have a dehumidification terminal.  
DEHUMIDIFICATION OPERATION - SECTION 9  
If your HVAC unit is equipped with a dehumidification system the thermostat will  
operate in one of two ways.  
1
) Normally Closed (NC): The thermostat will de-energize the MISC1, MISC2,  
or MISC3 terminal of the thermostat (this MISC terminal is connected  
to the DEHUM terminal on your furnace) to allow the fan to run in low 16  
speed when the humidity in the home is above the dehumidify setpoint you  
have chosen and there is a call for 1st stage cooling.  
2
) Normally Open (NO): The thermostat will energize the MISC1, MISC2, or  
MISC3 terminal of the thermostat (this MISC terminal is connected to the  
DEHUM terminal on your furnace) to allow the fan to run in low speed when  
the humidity in the home is above the dehumidify setpoint you have chosen  
and there is a call for 1st stage cooling.  
Page 16.3  
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Y2 JUMPER SETTING  
If the jumper for MISC1 is set to Y2 the MISC1 screw terminal on the backplate will control a  
second stage of cooling.  
Y2 OPERATION - SECTION 12.4  
The 2nd Stage of heat or cool is turned on when:  
(A) The 1st Stage has been on for the two minutes.  
And  
(
B) The temperature spread from the setpoint is equal to or greater  
than: the setpoint plus the 1st stage deadband (step #19, page  
2.5), plus two degrees.  
1
Cooling  
Deadband  
Deadband  
db 1  
adj. 1-6 )  
db 2  
(
(adj. 0-10 )  
Cool  
1st Stage  
turn on  
2nd Stage  
turn on  
Setpoint  
TEMPERATURE  
INCREASE  
1
6
Page 16.4  
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SECTION 17  
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Section 17 Contents:  
Resetting the Thermostat to the  
Factory Default Settings........17.2  
Calibrating the Temperature  
and Humidity Sensors...........17.3  
1
7
Page 17.1  
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FF aa cc tt oo rr yy DD ee ff aa uu ll tt SS ee tt tt ii nn gg ss (( ff oo rr dd ee ff aa uu ll tt vv aa ll uu ee ss ss ee ee pp aa gg ee 11 99 .. 11 ))  
If, for any reason, you desire to return all the stored settings back to  
the factory default settings, follow the instructions below.  
WARNING: This will reset all Advanced Programming to the  
default settings. Any information entered prior to this reset may  
be permanently lost.  
Place the thermostat in the  
MODE  
OFF  
OFF mode.  
72  
Setup  
Press and hold the MODE  
button. While holding the  
DeHumidify 88  
MODE  
Service Filter  
MODE button, press and hold Pan UV Light  
COOL  
Outside  
Remote  
the FAN button for 5 seconds. AUTO  
OFFON  
All icons will appear on the  
AUXHEAT  
FAN  
display.  
Override  
FanOn I88 88  
After all of the icons appear,  
release the MODE and FAN  
buttons. Then press and hold  
the FAN button for 5 seconds.  
1
7
FAN  
After the letters Fd appear on  
the display (Factory Default),  
release the FAN button. Press  
the MODE button once to  
return to normal operation.  
MODE  
OFF  
72  
Page 17.2  
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Under normal circumstances it will not be necessary to adjust the  
calibration of the temperature and humidity sensors. If calibration is  
required, please contact a trained HVAC technician to correctly  
perform the following procedure.  
I2:00Pm  
Su  
Place the thermostat in the  
MODE  
OFF mode.  
OFF  
72  
Setup  
Press and hold the MODE  
button. While holding the  
MODE button, press and hold  
the FAN button for 5 seconds.  
All icons will appear on the  
display.  
MODE  
DeHumidify 88  
Service Filter  
Pan UV Light  
AUTO  
COOL  
Outside  
Remote  
OFFON  
AUXHEAT  
FAN  
Override  
FanOn I88 88  
PRESS  
THERMOSTAT SENSOR  
Press the UP and DOWN buttons  
at the same time twice. The  
CALIBRATE  
thermostat temperature will be  
displayed and may be calibrated  
using the UP or DOWN buttons.  
TWICE  
REMOTE SENSOR  
MODE Press the MODE button once. The  
remote sensor temperature will be  
displayed and may be calibrated using the  
UP or DOWN buttons. If a remote sensor  
is not installed, only dashes will appear.  
Remote CALIBRATE  
1
7
HUMIDITY SENSOR  
Press the MODE button once. The  
relative humidity at the thermostat will be  
CALIBRATE  
MODE  
displayed and may be calibrated using the  
UP or DOWN buttons.  
After calibration is complete, press the MODE button once to return to  
normal operation.  
Page 17.3  
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SECTION 18  
AA cc cc ee ss ss oo rr ii ee ss  
ACCESSORY PORT - The RJ11 Jack is used to connect the  
P374-2700 to the IR Receiver P/N P374-0431 for wireless  
communication or the EZ Programmer P/N P374-0432 for  
easy downloading or uploading of thermostat information.  
The Accessory Port is located on  
the bottom of the thermostat.  
RJ11 Type Jack  
IR RECEIVER / REMOTE CONTROL (optional accessory) - When the  
IR Receiver is connected, the thermostat can be controlled using  
an IR Remote Control. The thermostat may also interface with  
other wireless systems in your home. For more information see the  
instruction sheet for the IR Receiver P/N P374-0431.  
EZ PROGRAMMER (optional accessory) - When the EZ Programmer  
is connected, the thermostat Time Period Programming and  
Advanced Setup Programming can be stored into the EZ  
Programmer’s memory. This information can then be uploaded to  
other P374-2700 thermostats. For more information see the  
instruction sheet for the EZ Programmer P/N P374-0432.  
1
8
Page 18.1  
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SECTION 19  
AA dd vv aa nn cc ee dd SS ee tt uu pp TT aa bb ll ee  
Step# Description Pg# Range Df* Step# Description  
Pg# Range Df*  
1
2
3
Auto-Changeover  
Thermostat  
3.2 Yes/No  
Yes 17 Minimum Heat/Cool 12.2 0 - 6  
2
Differential  
Fan Off Delay  
6.3 0, 30, 60,  
0
18 Cycles Per Hour  
19 Deadband/Temp.  
7.2 Auto/On/ Au-  
Swing 1st Stage  
12.3 d1, d 2-6  
12.5 1 - 6  
6
2
90  
Thermoglow  
Backlight  
Off  
7.2 F/C  
7.4 0 - 3  
to 20 2nd Stage turn off at 12.6 On/Off  
On  
4
5
6
7
8
9
F or C  
F
setpoint  
21 Thermostat control 13.3 Yes/No Yes  
to RS1?  
Security Level  
0
Max Heat Setpoint 7.4 35 - 99  
Min Cool Setpoint  
7.4 35 - 99  
Cool to Dehumidify 9.4 On/Off  
Maximum Dehum  
9.4 0 - 5  
Overshoot  
0 DEHUM Terminal  
Polarity  
1 Override Run-Time 10.2 read only - - 25 Unoccupied Cool  
2 Reset Service  
10.3 read only - - 26 Unoccupied Heat  
Humidify Icon  
3 Reset UV Light Icon 10.5 read only - -  
4 Heatpump Jumper 11.2 read only - - 28 Service Filter Run  
Setting  
Time Set  
5 Reversing Valve  
11.2 read only - - 29 UV Light Run-Time 15.3 0 - 1990  
Jumper Setting  
Set  
6 Electric Heat  
11.3 read only - - 30 Service Humidify  
Run-Time Set  
80  
55 22 Dry Contact  
Off  
Operation  
23 Dry Contact Polarity 14.2 NO/NC NO  
14.2 Yes/No No  
3
24 Dry Contact  
9.5 NO/NC NC  
Programming  
14.3 Override/ Ove  
Service rride  
Pan  
1
1
14.4 35 - 99 85  
14.4 35 - 99 55  
1
27 Reset Service Filter 15.2 read only - -  
Icon  
1
1
15.2 0 - 1950  
0
0
0
1
1
15.4 0 - 1990  
*
Df = Factory Default Setting  
1
9
Page 19.1  
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SECTION 20  
II nn dd ee xx  
outside, 2.2, 4.2  
indicator, 2.2  
mode, 1.2  
Override, 2.2, 5.1  
Reset Filter, 2.2, 15.2  
up, 1.2, 2.2, 7.3,  
11.4  
A
run-time, see Run-Time  
setpoint, 1.2-1.3  
to dehumidify, see  
Dehumidify  
Accessory Port, 18.1  
Alerts  
see Run-Time  
Auto  
Condensate Drain Pan,  
2.4, 14.3  
C
adjust temperature,  
Cycles Per Hour, 12.3,  
19.1  
1
.4, 3.5  
changeover, 3.4,  
9.1  
C, 7.2, 19.1  
Calibration, 17.3  
Celsius, 7.2  
Compressor Lockout,  
12.3  
1
differential, see  
Differential  
D
fan, 6.2  
icon, 2.3  
Cool  
Deadband  
lockout, 3.2  
mode, 1.2  
1st stage  
1st stage, 12.4-12.5,  
12.6, 16.4, 19.1  
2nd stage, 12.4, 12.6  
Dehumidify  
cool to, 9.3, 19.1  
DEHUM jumper,  
9.2  
deadband, see  
Deadband  
AuxHeat icon, 2.4  
dehum, 9.5  
2
nd stage  
deadband, see  
B
Deadband  
dehum, 9.5  
turn off  
icon, 2.4  
b reversing valve, 12.2  
Buttons  
setpoint, 9.2  
Delay  
temperature,  
12.6, 19.1  
down, 2.2, 7.3,  
fan-off, see Fan  
Differential  
heat and cool, 12.2,  
19.1  
1
1.4  
fan, 1.3, 2.2, 6.2,  
1.4, 17.2  
front panel, 2.2  
humidity, 2.2, 4.3,  
.3, 8.3  
mode, 1.2, 2.2, 7.3,  
7.2  
Y2 operation,  
16.5  
1
deadband, see  
Deadband  
humidify and  
dehumidify, 8.3,  
9.2  
droop, see Deadband  
electric/heat pump,  
11.2  
7
Disabled Keypad  
see Keypad Lockout  
1
icon, 2.3  
Page 20.1  
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SECTION 20  
II nn dd ee xx  
Drain Pan Overflow  
Buttons  
deadband, see  
Deadband  
Alarm, see Dry Contact  
Dry Contact  
off time delay, 6.3,  
19.1  
emergency heat,  
11.4  
override, 14.3, 19.1  
operation, 14.2,  
on during heat, see  
Electric Heat  
electric strip heat,  
2.4  
1
9.1  
on icon, 1.3, 2.4, 6.2  
run-time, 15.2  
2nd stage heat, see  
Emergency Heat  
speed, see  
polarity, 14.2, 19.1  
random start, 14.5  
service pan, 14.3  
AuxHeat icon, 2.4  
deadband, see  
Deadband  
droop, see Deadband  
electric/heat pump,  
11.2  
Dehumidify  
unoccupied, 6.2  
Fd, 17.2  
E
icon, 2.3  
Flashing Selection,1.2  
indicator, 2.2  
Mode, 1.2  
EH, 11.4  
Electric Heating  
AuxHeat icon, 2.4  
jumper setting, 11.3  
run-time, see Run-  
Time  
G
setpoint, 1.2-1.3  
Heat Pump  
AuxHeat, 2.4  
emergency heat,  
11.4  
1
9.1  
Emergency Heat,  
1.4  
Gas Furnace  
1
control the fan, 11.3  
jumper, 11.2  
EZ Programmer, 18.1  
Green Indicator, 2.2  
jumper setting, 11.2  
Humidify  
icon, 2.4  
F
service, 10.5, 15.4,  
19.1  
H
F, 7.2, 19.1  
setpoint, 8.3  
Humidity Module  
connector, 8.2  
installation, 8.2  
jumper setting, 8.2  
required for, 4.3,  
8.1, 8.3, 9.1-9.3,  
16.4, 17.3  
Factory Defaults  
caution, ii  
Heat  
1st stage  
settings, 17.2  
resetting, 17.2  
Fahrenheit, 7.2  
Fan,  
deadband, see  
Deadband  
emergency heat,  
11.4  
button function, see  
2nd stage  
Page 20.2  
href="
SECTION 20  
Index  
see Display  
12.2  
Off Mode, 1.2, 2.3  
Outdoor,  
Locked Indication  
I
see Keypad Lockout  
see Outside  
IR Receiver, 18.1  
Outside  
IR Remote Control,  
button, see Buttons  
icon, 2.3  
M
1
8.1  
sensor, 2.3, 4.2, 12.1-  
12.2, 13.2, 17.3  
viewing temperature,  
2.3, 4.2, 13.2, 17.3  
Override  
Manual  
changeover, 3.3  
cool, 3.2  
J
heat, 3.2  
Jumpers  
MISC  
button, see Buttons  
icon, 2.3  
DEHUM, 16.3  
jumper, see Jumpers  
output, 16.2-16.3  
Mode icon, 1.2, 2.3  
Multi-stage  
Operation, 12.4  
ECON, 16.3  
timer, 5.1  
ELEC, 11.3  
viewing run-time,  
10.2, 19.1  
electric heat, 11.3  
gas electric, 11.2  
heat pump, 11.2, 19.1  
HUM, 8.2, 16.2-16.3  
reversing valve, 11.2,  
P
1
9.1  
N
Y2, 16.2-16.3  
Pan, Service  
Non-Programmable  
see Dry Contact  
Thermostat, 3.3-3.4 Polarity, see Dry Contact  
Normally  
K
Open/Closed,  
dry contact, 14.2  
R
Keypad Lockout, 2.4,  
dehum terminal,  
7
.3  
9.5  
Random Start, 14.5  
Red Indicator, 2.2  
Remote Sensor  
L O  
calibrate, 17.3  
control to, 13.3-  
LCD  
O Reversing Valve,  
Page 20.3  
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SECTION 20  
II nn dd ee xx  
1
3.4, 17.1  
degree icon blink,  
3.2-13.3  
outside, see Outside  
calibrate, 17.3  
Time Delay,  
compressor lockout,  
12.3  
remote, see Remote  
thermostat, see  
Thermostat  
1
icon, 2.4  
outside temperature,  
see Outside  
Service  
cycles per hour,  
12.3, 19.1  
filter icon, 15.2  
humidify icon, 15.4  
pan icon, see Dry  
Contact  
read to, 13.3  
wiring, 13.2  
RS1, see Remote  
Sensor  
UV light, 15.3  
U
RS2, see Outside  
Sensor  
Setpoint  
cool, see Cool  
dehumidification,  
8.4,  
Unoccupied  
icon, 2.3  
Run-Time  
resetting, 15.2-15.4  
setting,  
operation, 5.1  
override, see  
Override  
9.3, 9.5  
humidifier, 15.4,  
heat, see Heat  
humidification, 4.3,  
8.4, 9.3  
1
9.1  
service filter, 15.2,  
9.1  
UV light, 15.3, 19.1  
viewing,  
setpoints, 14.4  
UV Light  
1
security, 7.4  
icon, 2.4  
unoccupied, 5.1  
Setup Icon, 2.4  
Simplest Operation,  
3.2  
resetting, 15.3  
run-time, 15.3  
setting, 15.3  
Override, 10.2  
UV light, 10.4  
Smart Fan, 6.2  
Smart Recovery, see  
Energy Save  
W
S
Warranty, 26.1  
2
nd stage turn off  
temperature,  
W3, see Jumpers  
T
12.6, 19.1  
Security  
level, 7.4, 19.1  
setpoints, 7.4, 19.1  
Sensor  
Terminal, MISC, see  
MISC  
Y
Thermostat Sensor  
Y2, see Jumpers  
Page 20.4  
href="
Section 21  
WW aa rr rr aa nn tt yy  
Five-Year Warranty - This Product is warranted to be free from defects in material and  
workmanship. If it appears within five year from the date of original installation, whether or not  
actual use begins on that date, that the product does not meet this warranty, a new or  
remanufactured part, at the manufacturer’s sole option to replace any defective part, will be  
provided without charge for the part itself provided the defective part is returned to the  
distributor through a qualified servicing dealer.  
THIS WARRANTY DOES NOT INCLUDE LABOR OR OTHER COSTS incurred for diagnosing,  
repairing, removing, installing, shipping, servicing or handling of either defective parts or  
replacement parts. Such costs may be covered by a separate warranty provided by the installer.  
THIS WARRANTY APPLIES ONLY TO PRODUCTS IN THEIR ORIGINAL INSTALLATION  
LOCATION AND BECOMES VOID UPON REINSTALLATION.  
LIMITATIONS OF WARRANTIES – ALL IMPLIED WARRANTIES (INCLUDING IMPLIED  
WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY) ARE  
HEREBY LIMITED IN DURATION TO THE PERIOD FOR WHICH THE LIMITED WARRANTY  
IS GIVEN. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED  
WARRANTY LASTS, SO THE ABOVE MAY NOT APPLY TO YOU. THE EXPRESSED  
WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND MAY NOT BE ALTERED,  
ENLARGED, OR CHANGED BY ANY DISTRIBUTOR, DEALER, OR OTHER PERSON  
WHATSOEVER.  
ALL WORK UNDER THE TERMS OF THIS WARRANTY SHALL BE PERFORMED DURING  
NORMAL WORKING HOURS. ALL REPLACEMENT PARTS, WHETHER NEW OR  
REMANUFACTURED, ASSUME AS THEIR WARRANTY PERIOD ONLY THE REMAINING  
TIME PERIOD OF THIS WARRANTY.  
THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR:  
1
2
3
4
5
.
.
.
.
.
Normal maintenance as outlined in the installation and servicing instructions or owner’s  
manual, including filter cleaning and/or replacement and lubrication.  
Damage or repairs required as a consequence of faulty installation, misapplication, abuse,  
improper servicing, unauthorized alteration or improper operation.  
Failure to start due to voltage conditions, blown fuses, open circuit breakers or other  
damages due to the inadequacy or interruption of electrical service.  
Damage as a result of floods, winds, fires, lightning, accidents, corrosive environments or  
other conditions beyond the control of the Manufacturer.  
Parts not supplied or designated by the Manufacturer, or damages resulting from their use.  
Manufacturer products installed outside the continental U.S.A., Alaska, Hawaii, and  
Canada.  
6.  
7.  
8.  
Electricity or fuel costs or increases in electricity or fuel costs for any reason whatsoever  
including additional or unusual use of supplemental electric heat.  
ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OR COMMERCIAL  
DAMAGE OF ANY NATURE WHATSOEVER. Some states do not allow the exclusion of  
incidental or consequential damages, so the above may not apply to you.  
This warranty gives you specific legal rights and you may also have other rights which may vary  
from state to state.  
Page 21.1  
P/N 88-502 Rev. 5  

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