White Rodgers 1F95 0680 Thermostat User Manual

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Blue Commercial Thermostat with  
Automatic Heat/Cool Changeover  
Option and Damper Control  
Single Stage, Multi-Stage, Heat Pump  
Installation and Operating Instructions for Model:  
Save these instructions for future use!  
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS  
CAREFULLY BEFORE INSTALLING OR OPERATINGTHIS  
CONTROL COULD CAUSE PERSONAL INJURY AND/OR  
PROPERTY DAMAGE.  
Model  
Programming Choices  
7 Day 5/1/1 Day  
Non-Programmable  
1F95-0680  
APPLICATIONS  
THERMOSTAT APPLICATION GUIDE  
1F95-0680 Commercial Thermostat  
Description  
Heat Pump (No Aux. or Emergency Heat)  
Heat Pump (with Aux. or Emergency Heat)  
Systems with up to 4 Stages Heat, 2 Stages Cool  
Heat Only Systems  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Millivolt Heat Only Systems – Floor or Wall Furnaces  
Cool Only Systems  
Gas or Oil Heat  
Electric Furnace  
Hydronic (Hot Water) Zone Heat – 2 Wires  
Hydronic (Hot Water) Zone Heat – 3 Wires  
Wired Remote Temperature Sensor (Indoor or Outdoor)  
Dual Fuel Damper Control Feature (Heat Pump Mode  
Outdoor Remote Required)  
SPECIFICATIONS  
Electrical Rating:  
Battery Power. . . . . . . . . . . . . . . . . . . . . . . . . . mV to 30 VAC, NEC Class II, 50/60 Hz or DC  
Input-Hardwire . . . . . . . . . . . . . . . . . . . . . . . . . 20 to 30 VAC  
Terminal Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A per terminal, 2.5A maximum all terminals combined  
Setpoint Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 to 99°F (7 to 32°C)  
Differential (Single Stage) . . . . . . . . . . . . . . . . . . . . Heat 0.6°F; Cool 1.2°F  
Differential (Multi-Stage) . . . . . . . . . . . . . . . . . . . . . Heat 0.6°F; Cool 1.2°F  
Differential (Heat Pump) . . . . . . . . . . . . . . . . . . . . . Heat 1.2°F; Cool 1.5°F  
Operating Ambient. . . . . . . . . . . . . . . . . . . . . . . . . . 32°F to +105°F (0 to +41°C)  
Operating Humidity . . . . . . . . . . . . . . . . . . . . . . . . . 90% non-condensing max.  
Shipping Temperature Range . . . . . . . . . . . . . . . . . -40 to +150°F (-40 to +65°C)  
Dimensions Thermostat. . . . . . . . . . . . . . . . . . . . . . 4.2"H x 6.4"W x 1.7"D  
CAUTION  
ATTENTION: MERCURY NOTICE  
This product does not contain mercury. However, this prod-  
uct may replace a product that contains mercury.  
!
Topreventelectricalshockand/orequipmentdamage,  
disconnect electric power to system at main fuse or  
circuit breaker box until installation is complete.  
Mercury and products containing mercury must not be  
discarded in household trash. Do not touch any spilled  
mercury. Wearing non-absorbent gloves, clean up any  
spilled mercury and place in a sealed container. For proper  
disposal of a product containing mercury or a sealed  
container of spilled mercury, place it in a suitable shipping  
container. Refer to www.white-rodgers.com for location to  
send product containing mercury.  
Index  
Installation  
Page  
2
2
3
4
5
8
9
Wiring Connections  
Wiring Diagrams  
Thermostat Quick Reference  
Installer Configuration Menu  
Operating Your Thermostat  
Programming  
Troubleshooting  
13  
PART NO. 37-6819A  
0811  
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INSTALLATION  
Power Stealing Switch  
WARNING  
!
This thermostat is designed for 24 VAC power to be hard-  
wired via a common connection to the C terminal with battery  
back-up. The thermostat also has the capability to be battery  
powered with the battery power supplemented by Power  
Stealing to extend the battery life. Powered only by the two  
"AA" batteries the expected battery life is about one year.  
With battery power supplemented by the Power Stealing  
circuits the battery life can be extended up to five years. The  
supplemental power is derived from the Heating (W) and/or  
Cooling (Y) circuits. The thermostat will utilize either one or  
both of these circuits to supplement the battery power. The  
thermostat "steals" power from these circuits when the circuit  
is not active (calling for heating or cooling).  
The Power Stealing switches are defaulted to the ON position.  
If the thermostat is hardwired with "C" common connection,  
both switches should be moved to the OFF position. If the  
thermostat is battery powered and the heating or cooling sys-  
tem does not cycle, indicating the system is not compatible,  
the switch for the circuit, heating or cooling, experiencing the  
incompatibility should be moved to the OFF position.  
Thermostat installation and all components of the  
control system shall conform to Class II circuits per  
the NEC code.  
Remove Old Thermostat  
Before removing wires from old thermostat, mark wires for  
terminal identification so the proper connections will be made  
to the new thermostat.  
Installing New Thermostat  
1. Pull the thermostat body off the thermostat base. Forcing  
or prying on the thermostat will cause damage to the unit.  
2. Place base over hole in wall and mark mounting hole  
locations on wall using base as a template.  
3. Move base out of the way. Drill mounting holes. If you  
are using existing mounting holes and the holes drilled  
are too large and do not allow you to tighten base snug-  
ly, use plastic screw anchors to secure the base.  
4. Fasten base snugly to wall using mounting holes shown  
in Figure 1 and two mounting screws. Leveling is for  
appearance only and will not affect thermostat operation.  
5. Connect wires to terminal block on base using appropriate  
wiring schematic.  
Figure 1 – Thermostat Base Multi-Stage 1F95-0680  
6. Push excess wire into wall and plug hole with a fire re-  
sistant material (such as fiberglass insulation) to prevent  
drafts from affecting thermostat operation.  
Mounting  
Hole  
Mounting  
Hole  
7. Carefully line the thermostat up with the base and snap  
into place.  
Battery Location  
2 "AA" alkaline batteries are included in the thermostat at the  
factory with a battery tag to prevent power drainage. Remove  
the battery tag to engage the batteries.  
Place Level  
across Mounting Tabs  
(for appearance only)  
Place Level  
across Mounting Tabs  
(for appearance only)  
Rear view of thermostat  
2 "AA" Batteries  
To replace batteries, set system to OFF, remove thermostat  
from wall and install the batteries in the rear along the top of  
the thermostat (see Figure 1). For best results, use a premi-  
um brand "AA" alkaline battery such as Duracell® or Ener-  
gizer®. If the home is going to be unoccupied for an extended  
Power Stealing  
Switches  
period (over 3 months) and  
is displayed, the batteries  
should be replaced before leaving.  
WIRING CONNECTIONS  
Refer to equipment manufacturers' instructions for specific  
system wiring information. After wiring, see CONFIGURA-  
TION section for proper thermostat configuration.  
Wiring diagrams shown are for typical systems and describe  
the thermostat terminal functions.  
TERMINAL DESIGNATION DESCRIPTIONS  
Description  
Terminal Designation  
O/B ........................................... Changeover valve for heat pump energized constantly in cooling and off/heating  
Y2............................................ 2nd Stage Compressor  
Y............................................ Compressor Relay  
G............................................ Fan Relay  
RC............................................ Power for Cooling  
RH............................................ Power for Heating  
C............................................ Common wire from secondary side of cooling (Optional). Required for fault indication, continuous back-  
light operation or remote temperature sensor operation 6 Powered closed 3rd wire for 3-wire zone valve  
W/E........................................... Heat Relay/Emergency Heat Relay (Stage 1) (3rd Stage Heat in HP2)  
W2............................................ 2nd Stage Heat (4th Stage Heat in HP2)  
-............................................ Common (DC) for wired remote temperature sensor  
S............................................ Frequency signal from remote temperature sensor  
+............................................ Power (DC) to remote temperature sensor  
A1............................................ Output energized in occupied (Morn, Day, and Eve periods)  
L............................................ Compressor diagnostic indicator for systems with diagnostic connection typically found on Heat pump  
systems or with Copeland's Comfort Alert  
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WIRING DIAGRAMS  
Figure 1 – Heat Pump Systems  
Heat Pump Connections  
If you do not have a heat pump system, refer  
to gures 2 & 3.  
Jumper  
L
W/E  
O/B  
Y
Y2  
W2  
G
RH  
RC  
C
A1  
Refer to equipment manufacturers' instructions  
System  
for specic system wiring information.  
Heat Mode  
3rd Stage.  
Emergency  
Mode 2nd  
Stage  
O
Heat Mode  
2nd Stage  
Blower/  
Heat Pump 1  
(HP1)  
Energized in  
Cool Mode  
Circulator  
Diagnostic  
Indicator  
or System  
Malfunction  
Switch  
You can congure the thermostat for use with  
the following heat pump systems.  
No  
Fan Energized  
on Call for  
Heat or Cool.  
Set Elect/Gas  
Option for  
Emergency  
Mode  
Optional*  
24 Volt  
(Com-  
mon)  
24 Volt 24 Volt  
Heat and  
Output  
Emergency  
Mode  
1st Stage  
(Hot)  
Heat  
(Hot)  
Cool  
Cool Mode  
1st Stage  
B
Energized in  
Heat, Off,  
Emergency  
Mode  
Heat Pump 2  
(HP2)  
2nd  
Heat Mode  
4th Stage.  
Emergency  
Mode 2nd  
Stage  
(Compressor)  
Stage  
(Com-  
pressor)  
HEAT PUMP TYPE 1 (HP 1). Single stage  
compressor system; gas or electric backup.  
Heat mode  
3rd Stage  
Comfort Alert II Module  
or Similar System  
NEUTRAL  
24VAC  
HOT  
HEAT PUMP TYPE 2 (HP 2). Multi-stage  
compressor or two compressor system with  
gas or electric backup.  
Diagnostic Module  
120VAC  
See Module Instructions  
for details  
CLASS II  
TRANSFORMER  
* Common connection required for diagnostic or malfunction indication.  
After wiring, see INSTALLER CONFIGURA-  
TION section for proper thermostat congura-  
tion.  
Figure 2 – Single Stage or Multi-Stage System (No Heat Pump)  
with Single Transformer  
Single Stage and Multi-Stage Con-  
nections  
Refer to equipment manufacturers' instructions  
for specic system wiring information.  
Jumper  
L
O/B  
W/E  
W2  
G
RH  
C
A1  
Y
RC  
Y2  
This thermostat is designed to operate a  
System  
single-transformer or two-transformer system.  
O
Energized Constantly  
in  
Blower/  
Single  
Stage 1  
(SS1)  
Diagnostic  
Indicator  
Input  
You can congure the thermostat for use with  
the following fossil fuel systems:  
Circulator  
Fan Energized  
on Call for  
Cool (and  
Heat if  
No Output  
No  
Optional*  
24 Volt  
(Com-  
mon)  
Heat  
24 Volt 24 Volt  
Cool Mode  
Output  
Mode  
Cool Mode  
1st Stage  
(Hot)  
Heat  
(Hot)  
Cool  
or  
1st Stage  
System  
Malfunction  
Switch  
Input  
B
Energized Constantly  
in Heat, Off,  
Emergency  
Mode  
Multi-  
Stage 2  
(MS2)  
Cool  
Mode  
2nd  
Heat Mode  
2nd Stage  
SINGLE STAGE (SS 1) gas, oil or electric.  
configured  
for Electric  
Heat)  
Stage  
MULTI-STAGE (MS 2) gas, oil or electric.  
After wiring, see INSTALLER CONFIGURA-  
TION section for proper thermostat congura-  
tion.  
Comfort Alert II Module  
or Similar System  
Diagnostic Module  
NEUTRAL  
24VAC  
HOT  
120VAC  
See Module Instructions  
for details  
CLASS II  
TRANSFORMER  
* Common connection required for diagnostic or malfunction indication.  
NOTE: If continuous backlight or hard-  
wired power input are desired but do not  
function in both HEAT and COOL modes,  
cut the heating transformer 24V wires  
and tape off. Connect the neutral circuit  
disconnected from the heating trans-  
former to the neutral circuit of the cooling  
transformer. Disconnect the wire to the  
RH terminal and install a jumper between  
RH and RC. Depending on the system  
requirements, replace the cooling trans-  
former with a 75VA class II transformer if  
Figure 3 – Single Stage or Multi-Stage System (No Heat Pump)  
with Two Transformers  
Remove Jumper Wire  
between RH & RC  
Jumper  
O/B  
W/E  
G
RH RC  
L
Y
Y2  
W2  
C
System  
Blower/  
Single  
Stage 1  
(SS1)  
B
O
Circulator  
Fan Energized  
on Call for  
Cool (and  
Heat if  
No Output  
Energized  
Constantly  
in Heat, Off,  
Emergency  
Mode  
Energized  
Constantly  
in  
No  
Heat  
24 Volt 24 Volt Optional  
Diagnostic  
Indicator  
(Optional)  
Output  
Cool Mode  
1st Stage  
Mode  
(Hot) (Hot)  
Heat Cool  
24 Volt  
(Com-  
mon)  
1st Stage  
Cool Mode  
Multi-  
Stage 2  
(MS2)  
Cool  
Mode  
2nd  
Heat Mode  
2nd Stage  
configured  
for Electric  
Heat)  
needed.  
Stage  
NEUTRAL  
24VAC  
HOT  
120VAC  
NEUTRAL  
120VAC  
HEATING  
24VAC  
HOT  
COOLING  
CLASS II  
TRANSFORMER  
CLASS II  
TRANSFORMER  
Figure 4 – 3-Wire (SPDT) Heat Only Zone Valve Wiring  
Jumper  
6
W
G
RH  
C
Y
RC  
System  
Single Stage  
3-wire  
Zone Valve  
application  
Constant  
24 Volt  
(Com-  
mon)  
24 Volt  
(Hot)  
Cool  
Closes  
Valve  
(6)  
Opens  
Valve  
(4)  
Blower/Circulator  
Fan Energized  
24 Volt  
(Hot)  
Heat  
(5)  
NEUTRAL  
24VAC  
HOT  
120VAC  
CLASS II  
TRANSFORMER  
3
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THERMOSTAT QUICK REFERENCE  
Home Screen Description  
Figure 5 – Home Screen Display  
Room  
Temperature  
Setting  
Temperature  
Displays the power level of  
the 2 “AA” batteries:  
indicates good power level  
indicates batteries at about  
half power. “Change  
” indicates  
batteries are low and should be  
replaced with 2 new premium brand  
“AA” Alkaline batteries.  
(See page 2 for more details)  
System  
Indicator  
Fan  
Indicator  
Figure 6 – Programming & Configuration Items  
8
2
4
12  
3
10  
11  
1
9
5
7
6
13  
Programming and Configuration Items  
7
8
Displays "Run Schedule", "Schedule", or "Menu".  
Displays "Save" when Cool SavingsTM is working.  
"System On" indicates when heating or cooling stage  
is energized. "System On +2" indicates when a second  
stage is energized.  
1
Displays "Heat Pump" when system is congured  
as Heat Pump thermostat.  
9
2
The word HOLD is displayed when the thermostat is  
in the HOLD mode. Temp is displayed when  
the thermostat is in a Temporary HOLD mode.  
Displays "Hold" in programmable mode when not in  
"Hold" mode. Displays Light Bulb in non-program-  
mable mode.  
10  
Displays Change Filter when the system has run for  
the programmed lter time period as a reminder to  
change or clean your lter.  
3
Initially displays "Auto Sched". If Auto Schedule had  
been used or disabled, then it displays "Cool Savings"  
when in the Cool Mode. Displays "Copy" in Schedule  
mode and "Fan" in Fan Schedule mode.  
11  
4
Displays "Set" for setpoint when in Run Program mode.  
"Call For Service" indicates a diagnostic fault in the  
heating/cooling system, it does not indicate a fault in the  
thermostat.  
12  
Displays System Mode (Heat, Em, Auto, Cool, Off)  
or Time in menu mode.  
5
Displays Fan Mode (On, Auto) Prog FAN On or "Run  
Sched" in Menu mode.  
6
"Keypad Lockout" in Menu mode when selecting key-  
pad Lockout or in RUN when a keypad Lockout is active.  
13  
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INSTALLER/CONFIGURATION MENU  
Press and hold the Menu button for at least 5 seconds. The display will show item #1 in the table below. Press Menu to ad-  
vance to the next menu item. Press  
or  
to change a menu item options.  
INSTALLER/CONFIGURATION MENU  
MENU HP SS PRESS  
DISPLAYED  
(FACTORY DE-  
FAULT)  
COMMENTS  
Press  
select from listed op-  
tions  
or  
to  
REF.  
BUTTON  
1
1
1
MENU  
(MS 2)  
HP 1, HP 2, SS 1  
Selects Multi-Stage (MS 2 No Heat Pump),  
Heat Pump 1 (HP 1, 1 compressor),  
Heat Pump 2 (HP 2, 2 compressor or 2  
speed compressor), or Single Stage (SS 1)  
2
3
2
3
2
3
MENU (GAS) for SS or MS  
ELE  
GAS setting: furnace controls the blower  
ELE setting: thermostat controls the blower  
MENU  
CS (3)  
0, 1, 2, 4, 5, 6  
Selects Cool Savings  
Value 1 (low) to 6 (high),  
Value 0 disables feature  
4
5
6
4
5
4
5
MENU  
MENU  
MENU  
E (On)  
OFF  
Selects Energy Management Recovery (EMR)  
On or OFF.  
CR Heat (ME)  
SL, FA  
SL, FA  
Adjustable Anticipation:  
Selects heating cycle rate for MS or SS in #1 only  
CR Heat Pump  
(ME)  
Adjustable Compressor Anticipation  
(Heat Pump) [only when heat pump (Heat/Cool)  
selected in #1]  
7
6
6
MENU  
CR Cool (ME)  
or  
CR Au (FA)  
SL, FA  
SL  
Adjustable Anticipation:  
Selects the cycle rate for cooling (only when  
MS 2 or SS 1 is selected in item 1.) or  
Selects the cycle rate for Emergency mode  
and Auxiliary stage if Heat Pump is selected  
in item 1.  
8
9
7
8
7
8
MENU  
MENU  
CL (OFF)  
CL On  
Compressor Lockout Time  
Cool Off, Em Heat  
Auto  
Heat Auto Cool Off,  
Heat Off with Fan icon,  
Heat Off without Fan icon  
Cool Off, Auto Off  
System Mode Configuration  
with Automatic Changeover capability  
10  
11  
9
9
MENU  
dL (On)  
0
dL OFF  
Selects Display Light On or OFF  
10 10 MENU  
1 HI, 2 HI, 3HI, 4 HI,  
Adjustable Ambient Temperature Display  
(current temperature) 1 LO, 2 LO, 3 LO, 4 LO  
12  
13  
11 11 MENU  
12 12 MENU  
°F  
°C  
Selects Fahrenheit/Celsius Temperature Display  
(On) b  
OFF  
May select Beeper OFF to stop audible  
key feedback  
14 13 13 MENU  
15 14 14 MENU  
P (7)  
3, 0  
4
Defaults 7-day programming (P7) but non-  
programmable (0) or 5/1/1 programming (P3)  
is available on most models.  
PS (2)  
Selects Program periods per day:  
4 = Morn, Day, Eve, Night  
2 = Day, Night  
16  
17  
18  
15 15 MENU  
16 16 MENU  
Heat AS (On)  
Cool AS (On)  
Heat FA (On)  
OFF  
OFF  
OFF  
Automatic Schedule for heat mode  
Automatic Schedule for cool mode  
17  
MENU  
Fast Heat option may be disabled by  
selecting OFF. NA to SS or HP1 config.  
19  
20  
18  
MENU  
Cool FA (On)  
OFF  
Fast Cool option may be disabled by  
selecting OFF. NA to SS or HP1 config.  
19 17 MENU  
MENU  
Remote (OFF)  
On  
Selects Remote Sensor On/OFF  
Remote  
(In)  
Outdoor  
Selects Remote Sensor to outdoor  
NA is Remote Sensor OFF  
MENU  
Indoor Loc  
(On)  
OFF  
Selects Local Sensor (in thermostat) to OFF.  
N/A if Remote is selected to Outdoor  
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INSTALLER/CONFIGURATION MENU  
21  
20 18 MENU  
dS (On)  
Off  
Selects Automatic Daylight Saving Time option  
22  
21 19 MENU  
(OFF)  
Keypad Lockout  
L, P, Limit  
Selects one of 3 Keypad Lockout configurations  
L - Total Keypad Lockout  
P - Partial Keypad Lockout  
(Up and Keys still work)  
Limit - Limited Temperature RANGE  
MENU  
22 20 MENU  
23 21 MENU  
(000)  
Keypad Lockout  
1-999  
L 62 to L 98  
L 46 to L 82  
6-50  
Selects personal lockout code. 000 is NOT A  
VALID CODE.  
23  
24  
25  
L Heat  
(99)  
Select's Limited HEAT Range  
L Cool  
(45)  
Select's Limited COOL Range  
24  
MENU  
CO  
(05)  
Selects outdoor Compressor OFF temperature  
(Balance Point temperature). 05 disables fea-  
ture. Outdoor Remote required  
MENU  
MENU  
MENU  
(dF)  
EA  
Selects between dF (dual Fuel) or EA (Electric  
Aux) only available is CO > 6  
cd  
(60)  
Selects Compressor delay OFF time in seconds  
26  
25  
AO  
(80)  
Selects AO (Auxiliary OFF) temperature. Fea-  
ture disabled is 80 selected. Outdoor Remote  
required  
27  
28  
26 22 MENU  
27 23 MENU  
(OFF) EC  
(O) pp  
On  
1-3  
Selects Economizer On/OFF  
Selects no. of hours of preoccupancy purge time  
(hours the Fan runs (C an A1 energized)  
prior to occupied period)  
29  
30  
28 24 MENU Change Filter (OFF)  
MENU Change Filter (200 h)  
On  
25-1975 h  
On  
Selects Filter Change-out Indicator On or OFF.  
Change Filter time in 25 hour increments. This  
menu only appears if On is selected in above.  
29 25 MENU  
MENU  
(OFF)  
Change UV Lamp  
Selects UV Lamp  
Timer: On/OFF  
(350)  
Change UV Lamp  
25-1975  
Heat On (b)  
Selects no. of Days between changing UV Lamp  
31  
32  
30 26 MENU  
31 27 MENU  
Cool On (o)  
Selects operation of the reversing valve terminal  
(O/B) output as an O or B terminal  
RUN SCHED  
Returns to Normal Operation  
1) This control can be configured for:  
very slowly, adjusts the setpoint temperature to make the  
setpoint closer to the displayed room temperature, to a  
maximum of the number of degrees you select. Adjust-  
ing the setpoint temperature over a long cooling run time  
allows the system to reach your set temperature and turn  
off. The room temperature will actually be higher than the  
thermostat displays but the reduction in humidity will allow  
comfort at the slightly higher temperature.  
MS 2 – Multi-Stage System (no heat pump)  
HP 1 – Heat Pump with one stage of compressor  
HP 2 – Heat Pump with two stage compressor or two  
compressor system, Gas or Electric backup  
SS 1 – Single Stage System  
2) GAS or Electric (ELE) fan operation. If the heating system  
requires the thermostat to energize the fan, select ELE.  
Select GAS if the heating system energizes the fan on a  
call for heat.  
To turn this feature on in the Cool mode press Cool  
Savings. The display will show “Save” next to the set-  
point temperature. When Cool Savings is making adjust-  
ments to the room temperature display “Save” will be  
flashing and the displayed room temperature may vary  
within the adjustment range you selected.  
3) Select Cool Savings™ value – Selects the amount of  
adjustment for the Cool Savings™ feature in Cool mode  
with 1 (1°) being the least amount of adjustment and 6  
(6°) being the most amount of adjustment. Default value  
is 3. Cool Savings is an optional energy saving feature that  
can reduce your cooling costs. It is based on the principal  
that lower indoor humidity makes a slightly higher tem-  
perature feel more comfortable. Cool Savings operates  
during periods of high demand which normally occur on  
the hottest summer days when a cooling system may run  
for hours to reach the thermostat setting. Long cooling  
run times also lower the indoor humidity. Cool Savings,  
If "Save" is not displayed and this feature is OFF, no  
change will occur when the cooling system is continuously  
running during periods of high demand.  
4) Energy Management Recovery: (this step is skipped if  
configured to be non-programmable).  
Energy Management Recovery (E) On enables the ther-  
mostat to start heating or cooling early to make the building  
temperature reach the program setpoint at the time you  
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INSTALLER/CONFIGURATION MENU  
specify. Heating will start 5 minutes early for every 1° of  
temperature required to reach setpoint.  
16 & 17) Select Automatic Schedule – 1F85 only, with just  
one touch of the Auto Schedule key this feature allows  
you to program a desired comfort temperature into all the  
program periods along with a 6° set back for night periods  
of both Heat and Cool programs. Factory default is "On"  
for both. When Heat AS On and Cool AS On are acti-  
vated while in Heat or Cool mode, select desired setpoint  
temperature and press Auto Schedule. This value will be  
copied into all the morning, day and evening program  
periods. The night program periods will have a 6°F set back.  
Example: E On is selected and your heating is pro-  
grammed to 65° at night and 70° at 7 AM. If the building  
temperature is 65°, the difference between 65° and 70° is  
5°. Allowing 5 minutes per degree, the thermostat setpoint  
will change to 70° at 6:35 AM. Cooling allows more time  
per degree, because it takes longer to reach set tempera-  
ture.  
5, 6 & 7) Cycle Rate Selection – The factory default setting for  
Heat and Cool modes, SS1, MS2, is medium cycle (ME).  
For Heat Pump, HP1, HP2, the default setting is medium  
(ME). For Emer (Aux) the default setting is fast cycle (FA).  
18 & 19) Select Fast Second Stage ON or OFF – Heat  
pump or Multi-stage only, in the run mode, with the fast  
Heat feature enabled (FA Heat On), if the Heat setpoint  
temperature is manually raised by 3°F (2°C) or more  
To change cycle rate, press the  
or  
button.  
above the actual temperature using  
the second stage  
will energize immediately. With FA OFF, second stage will  
not energize until the setpoint temperature is 1°F or more  
above actual temperature for more than ten minutes. The  
Fast Cool feature (FA Cool) provides the same controls  
when the setpoint temperature is lowered.  
Cycle rate differentials for different settings are:  
MODE  
Fast  
FA  
Medium Slow  
ME  
SL  
Heat (SS1, MS2)  
Cool (SS1, MS2)  
Heat Pump (HP1, HP2) 0.9°F  
Emer (HP1, HP2) 0.6°F  
0.4°F  
0.9°F  
0.6°F  
1.2°F  
1.2°F  
-
1.7°F  
1.7°F  
1.7°F  
1.7°F  
20)Select Remote Temperature Sensor – This control  
allows one wired remote temperature sensor (indoor,  
F145-1328, or outdoor, F145-1378) be connected to it and  
indicates the measured temperature in clock digits. This  
menu enables you to select the remote sensor and also  
configure it as indoor or outdoor temperature sensor. Fac-  
tory default is off. Select Remote On and Remote in (for  
indoor) or Outdoor Remote.  
8) Select Compressor Lockout CL OFF or ON – Selecting  
CL ON will cause the thermostat to wait 5 minutes be-  
tween cooling cycles. This is intended to help protect the  
compressor from short cycling. Some newer compressors  
already have a time delay built in and do not require this  
feature.Your compressor manufacturer can tell you if the  
lockout feature is already present in their system. When  
the thermostat compressor time delay occurs, it will flash  
the setpoint for up to five minutes.  
Local Temperature Sensor disable – This is applicable  
only when indoor remote temperature sensor is enabled.  
Factory default is Loc On.You can make it Loc Off if you  
desire by using  
or  
buttons. Then, only the indoor  
9) System Mode Configuration – This thermostat is config-  
ured for Heat and Cool (SYSTEM switch with Cool Off  
Heat) default. It can also be configured for Heat and Cool  
with Auto changeover (Heat, Auto, Cool, Off), Heat only  
with fan (Off Heat), Heat only without fan, Auto only  
(Auto Off), and Cool only (Cool Off).  
remote temperature reading will be used for control  
21)Select Daylight Saving Time Calculation – This feature  
will allow the thermostat to calculate the DST automati-  
cally and apply it to the Real Time Clock display. Default  
On. Use  
or  
touch keys to select the feature OFF.  
22)Keypad Lockout – This step allows you to select the type  
of lockout or limited range security required. If no lock-  
out or limited range security is required, press MENU to  
advance the menu.  
10)Select Backlight Display – The display backlight improves  
display contrast in low lighting conditions. When the "C" ter-  
minal is powered, selecting backlight CdL ON will keep the  
light on continuously. Select backlight OFF will turn the light  
on momentarily after any button is pressed. When the "C"  
terminal is not powered, the light will be on momen- tarily  
after any button is pressed no matter whether the backlight  
is selected ON or OFF.  
Three security settings are available in this menu item.  
Use the  
or  
buttons to select the lockout desired.  
Lockout selections are:  
"Keypad Lockout and L" = Total Lockout. Total Lockout  
locks all keys.  
11)Select Temperature Display Adjustment 4 LO to 4 HI –  
Allows you to adjust the room temperature display up to 4°  
higher or lower. Your thermostat was accurately calibrated  
at the factory, but you have the option to change the dis-  
play temperature to match your previous thermostat. The  
current or adjusted room temperature will be displayed.  
"Keypad Lockout and P" = Partial Lockout. Partial Lock-  
out allows only the  
or  
buttons to operate within  
your set temperature limits.  
"Keypad Lockout and Limit" prevents changing the  
temperature limits in the Configuration Menu.  
12)Select F° or C° Readout – Changes the display readout  
to Celsius or Fahrenheit as required.  
Press Menu after selecting the type of lockout.  
13)Select Audio Prompting (Beeper) On or Off – Factory  
default setting is on (b, On). If you wish to turn off the  
beeper select OFF.  
"Keypad Lockout Combination Number Selection"  
Display will read "000" "Keypad Lockout". Note: "000" is  
not a valid combination choice.  
14)Program Options: Selects configuration for 7 day (7) or  
5/1/1 day (3) programming or non-programming (0) mode.  
The default setting is 7, indicating 7 day programming.  
The programs per week can be changed to 3 or 0 by  
Skip this step and continue through the remaining configu-  
ration menu items if you require an Air Filter Change out  
indicator or Humidifier Pad Change out indicator by press-  
ing the MENU button to advance.  
pressing the  
or  
buttons. A selection of 0 days for  
non-programmable will eliminate the need for EMR, and  
that step in the menu will be skipped.  
Return to this point when you are ready to start your  
selected lock-out and continue by:  
15)Program Steps per day – This control can be configured  
for 4 or 2 program steps per day. Default is "2 PS" and  
can be toggled between 4 PS and 2 PS.  
Press  
. Display will read "001".  
or buttons to select your keypad lock-  
Pressing  
out combination number.  
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INSTALLER/CONFIGURATION MENU  
Record the number you select for future use.  
Press MENU or RunSched to exit the menu. The security  
feature you select will start. The system button will remain  
active for 10 seconds to allow setting Heat, Off, Cool or  
Auto.  
27)Economizer Feature – This item allows longer Y1 cycles  
for cooling with outdoor air.  
28)Pre-occupancy Purge (PP) – Selects the number of  
hours the pre-occupancy purge time from 0 to 1, 2 or 3  
hour with the  
or  
buttons.  
23)Limited Heat Range – This feature provides a maximum  
setpoint temperature for heat. The default setting is 90°F. It  
can be changed between 62°F and 98°F by pressing the  
When the pre-occupancy purge time is greater than 0  
hours, the blower output ("G" terminal) will energize the  
number of pre-occupancy purge hours before the next  
programmed occupancy time period. During this pre-  
purge time the A1 terminal will be energized.  
or  
button.  
24)Limited Cool Range – This feature provide a minimum  
setpoint temperature for cool. The default setting is 45°F. It  
can be changed between 46°F and 82°F by pressing the  
29)Select Filter Replacement Reminder and Set Run Time  
Select the "Change Filter" reminder On or OFF. If se-  
lected On, press MENU to select the time period from 25  
to 1975 hours in 25 hours increments. In a typical system,  
200 hours (default) of run time is approximately 30 days.  
After the selected time of blower operation, the thermostat  
will display "Change Filter" as a reminder to change or  
clean your air filter. When "Change Filter" is displayed,  
press MENU or RUN SCHED button to clear the display  
and restart the time to the next filter change.  
or  
button.  
25)Select Compressor Off (CO) Feature Using Outdoor  
Sensor (dF) – This feature is applicable only in heat pump  
modes and with an outdoor sensor installed and enabled.  
When CO is enabled by selecting a temperature >5°F  
(01-15°C), the thermostat will use the outdoor sensor  
temperature to determine when to switch to gas heat and  
shut down the compressor.  
30)Change UV Lamp – This feature allows the thermostat  
to display the words Change UV Lamp (Call for Service  
of UV bulb) after a set time of UV bulb operation. This is  
a reminder to maintain your UV system at optimum level  
of operation. When enabled the factory set interval for  
Change UV Lamp to be displayed is 350 days of UV bulb  
operation and can be adjusted in 25 day increments. This  
should be adjusted with respect to the bulb's recommend-  
ed maintenance schedule.  
Select DF setting (dF) – With CO selected >5, select the  
setting for outdoor temperature. When the outdoor tem-  
perature goes below the setpoint, the gas heat will begin.  
Default is 5 (Off or disabled), but can be set in the range  
of 6 to 50 using the  
or  
buttons.  
Select dF or EA – Select dF (default) if your system has  
a fossil fuel (gas or oil) Auxiliary heat. Select EA if your  
system has Electro Auxiliary heat and you want the com-  
pressor to continue to run while calling for Auxiliary stage.  
When Change UV Lamp is displayed, you can clear it by  
pressing MENU.  
Select Compressor Delay (Cd) – After the auxiliary heat  
is turned on, the compressor(s) shut down is delayed for  
the time selected (in seconds). This delay is factory set  
31)Select Reversing Valve Output – The O/B option is  
factory set at "O" position. This will accommodate the  
majority of heat pump applications, which require the  
changeover relay to be energized in COOL. If the thermo-  
stat you are replacing or the heat pump being installed  
with this thermostat requires a "B" terminal, to energize  
the changeover relay in HEAT, the O/B option should be  
set at "B" position.  
to 60, but can be set in the range of 0 to 99 using  
buttons.  
or  
26)Select Auxiliary Off (AO) – Select the temperature that  
will inhibit the auxiliary heating stage. As long as the out-  
door temperature is above the setpoint, the auxiliary heat  
will not turn on. The default setting is 80, but can be set in  
the range of 35 to 79. A setting of 80 disables this feature.  
OPERATINGYOUR THERMOSTAT  
Check Thermostat Operation  
CAUTION  
!
Do not allow the compressor to run unless the com-  
pressor oil heaters have been operational for 6 hours  
and the system has not been operational for at least  
5 minutes.  
NOTE  
To prevent static discharge problems, touch side of  
thermostat to release static build-up before touching  
any keys.  
Heating System  
1. Press SYSTEM button to select HEAT. If the auxiliary  
heating system has a standing pilot, be sure to light it.  
If at any time during testing your system does not operate  
properly, contact a qualified service person.  
2. Press  
to adjust thermostat setting to 1° above room  
Fan Operation  
If your system does not have a G terminal connection, skip to  
Heating System.  
temperature. The heat pump system should begin to oper-  
ate. The display should show “System On”. However, if  
the system configuration is set to HP1 or HP2 and setpoint  
temperature display is flashing, the 5 minute compressor  
lockout feature is operating (see Configuration menu,  
item 11).  
3. Adjust temperature setting to 3° above room temperature.  
If your system configuration is set at MS2, HP2 or HP1,  
the auxiliary heat system should begin to operate and  
the display will show “System On +2”.  
1. Turn on power to system.  
2. Move FAN switch to ON position. The blower should begin  
to operate.  
3. Move FAN switch to AUTO position. The blower should  
stop immediately.  
4. Press  
to adjust the thermostat below room tempera-  
ture. The heating system should stop operating.  
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OPERATINGYOUR THERMOSTAT  
Choose the System Setting  
Emergency System  
EMER bypasses the Heat Pump to use the heat source wired (Cool, Off, Heat, Emer, Auto)  
to terminal W/E on the thermostat. EMER is typically used  
when compressor operation is not desired, or you prefer  
back-up heat only.  
Press the SYSTEM button to select:  
Heat: Thermostat controls only the heating system.  
Off: Heating and Cooling systems are off.  
Cool: Thermostat controls only the cooling system.  
Auto: Auto Changeover is used in areas where both heating  
and cooling may be required on the same day. AUTO allows  
the thermostat to automatically select heating or cooling  
depending on the indoor temperature and the selected heat  
and cool temperatures. When using AUTO, be sure to set the  
Cooling temperatures more than 1° Fahrenheit higher than  
the heating temperature.  
1. Press SYSTEM button to select EMER. “EMER” will flash  
on the display.  
2. Press  
to adjust thermostat setting above room  
temperature. The Emergency heating system will begin  
to operate. The display will show “System On” flashing  
“EMER” and “HEAT” to indicate that the Emergency sys-  
tem is operating.  
3. Press  
to adjust the thermostat below room tempera-  
ture. The Emergency heating system should stop operat-  
ing.  
Emer: Setting is available only when the thermostat is config-  
ured in HP1 or HP2 mode.  
Manual Operation for  
CAUTION  
To prevent compressor and/or property damage, if the  
outdoor temperature is below 50°F, DO NOT operate  
the cooling system.  
!
Non-Programmable Mode  
Press the SYSTEM button to select Heat or Cool and use  
the buttons to adjust the temperature to your desired setting.  
After selecting your desired settings you can also press the  
SYSTEM button to select AUTO to allow the thermostat to  
automatically change between Heat and Cool.  
Cooling System  
1. Press SYSTEM button to select COOL.  
Manual Operation (Bypassing the Program)  
Programmable Mode  
2. Press  
to adjust thermostat setting below room tem-  
Adjust the temperature wherever you like and then press  
the HOLD button. This will override the program. The HOLD  
feature bypasses the program and allows you to adjust the  
temperature manually, as needed. Whatever temperature  
you set in HOLD will be maintained 24 hours a day, until you  
manually change the temperature or press Run Schedule to  
cancel HOLD and resume the programmed schedule.  
perature. The blower should come on immediately on high  
speed, followed by cold air circulation. The display should  
show “System On”. If the setpoint temperature display is  
flashing, the compressor lockout feature is operating (see  
Configuration menu, item 5).  
3. Adjust temperature setting to 3° below room temperature.  
The second stage cooling should begin to operate and  
the display should show “System On +2”.  
Program Override (Temporary Override)  
Press buttons to adjust the temperature. This will override the  
temperature setting for a two hour override period.  
4. Press  
to adjust the temperature setting above room  
temperature. The cooling system should stop operating.  
Example: If you turn up the heat during the morning program,  
it will be automatically lowered later, when the temporary hold  
period ends. To cancel the temporary setting at any time and  
return to the program, press Run Schedule.  
If the SYSTEM button is pressed to select AUTO the  
thermostat will change to Heat or Cool, whichever ran last. If  
it switches to heat, but you want cool, or it changes to cool,  
but you want heat, press both buttons simultaneously to  
change to the other mode.  
Choose the Fan Setting (Auto or On)  
Fan Auto is the most commonly selected setting and runs the  
fan only when the heating or cooling system is on.  
Fan On selection runs the fan continuously for increased air  
circulation or to allow additional air cleaning.  
Fan Prog On indicates that the fan is programmed to be on  
for the entire period. The Prog Fan On can be overridden  
to have the fan cycle with the system. Press the FAN but-  
ton to change the fan to Auto. The fan programming will be  
overridden until the next program period begins or until Run  
Schedule is pressed.  
PROGRAMMING  
7) Press Time once again to display month.  
Set Current Time and Day  
8) Press and hold either the  
reach the correct month.  
or  
button until you  
1) Press Menu key to enter installer menu. Then press  
Time once to indicate hour & AM or PM designation  
in clock display.  
9) Press Time once again to display date of the month  
along with day of the week at top row (which is auto-  
matic).  
2) Press and hold either the  
or  
button until you  
reach the correct hour and AM or PM designation.  
3) Press Time again to display minutes only in clock  
display.  
4) Press and hold either the  
reach the correct minutes.  
10) Press and hold either the  
or  
button until you  
reach the correct day of the month and day of the week  
is automatically calculated and displayed at the top row.  
11) Press Run Schedule once; now the display will show the  
correct time and room temperature.  
or  
button until you  
5) Press Time once again to display year.  
6) Press and hold either the  
reach the correct year.  
or  
button until you  
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PROGRAMMING  
Energy Saving Factory Pre-Program  
The 1F95-0680 thermostats are programmed with the energy saving settings shown in the table below for all days of the week.  
If this program suits your needs, simply set the thermostat clock and press the RunSched button.  
The table below shows the factory set heating and cooling schedule for all days of the week.  
* Wake Up  
(Morn)  
Leave For Work  
(Day)  
* Return Home  
(Eve)  
Go To Bed  
(Night)  
Heating  
Program  
6:00 AM  
6:00 AM  
70°F  
75°F  
8:00 AM  
8:00 AM  
62°F  
83°F  
5:00 PM  
5:00 PM  
70°F  
75°F  
10:00 PM  
10:00 PM  
62°F  
78°F  
Cooling  
Program  
* You can eliminate these two program periods in the configuration menu (reference #15) if the building is occupied all day.  
Day period will change to 6:00 AM and 70° and can be programmed as required.  
PlanningYour Program – Important  
The Heating and Cooling Program schedules below allow you to pencil in your own program times and temperatures.  
The 1F95-0680 comes configured for 7 day programming and can also be configured for 5+1+1 programming (see configura-  
tion section).  
Factory settings are listed on Monday, Saturday and Sunday. If you are re-programming a 5+1+1 day schedule, pencil in your  
own times and temperatures directly below the factory times and temperatures.  
If you are re-programming a 7 day schedule, fill in all lines with the times and temperatures you want.  
Keep the following guidelines in mind when planning your program.  
• In Heating, lower temperatures will save energy.  
• In Cooling, higher temperatures will save energy.  
• If you plan on using Auto Changeover, do not program the heating temperature higher than the cooling temperature.  
Worksheet for Re-Programming 5+1+1 and 7 Day Program  
Heating  
Program  
Wake Up  
(Morn)  
Leave For Work  
(Day)  
Return Home  
(Eve)  
Go To Bed  
(Night)  
Fan  
Fan  
Fan  
Fan  
6:00 AM 70°F Auto 8:00 AM 62°F Auto 5:00 PM 70°F Auto 10:00 PM 62°F Auto  
MON  
TUE  
WED  
THU  
FRI  
6:00 AM 70°F Auto 8:00 AM 62°F Auto 5:00 PM 70°F Auto 10:00 PM 62°F Auto  
6:00 AM 70°F Auto 8:00 AM 62°F Auto 5:00 PM 70°F Auto 10:00 PM 62°F Auto  
SAT  
SUN  
Cooling  
Program  
Wake Up  
(Morn)  
Leave For Work  
(Day)  
Return Home  
(Eve)  
Go To Bed  
(Night)  
Fan  
Fan  
Fan  
Fan  
6:00 AM 75°F Auto 8:00 AM 83°F Auto 5:00 PM 75°F Auto 10:00 PM 78°F Auto  
MON  
TUE  
WED  
THU  
FRI  
6:00 AM 75°F Auto 8:00 AM 83°F Auto 5:00 PM 75°F Auto 10:00 PM 78°F Auto  
6:00 AM 75°F Auto 8:00 AM 83°F Auto 5:00 PM 75°F Auto 10:00 PM 78°F Auto  
SAT  
SUN  
10  
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PROGRAMMING  
Automatic Daylight Saving Calculation  
Enter the Cooling Program  
The Real Time Clock will adjust automatically for daylight sav- 1) Press the SYSTEM button until the Cool icon appears.  
ings time, in the following manner:  
2) Follow Enter Heating Program instructions for entering  
Increment one hour at 2 AM on the second Sunday of March  
and decrement one hour at 2 AM on the first Sunday of No-  
vember. (New DST effective 2007).  
cooling times and temperatures.  
Automatic Schedule  
This feature provides a method to program every day with the  
most popular time and temperature settings using one key.  
For this feature to be available, the Auto Schedule options  
(Installer/Configuration menu item 15, AS Heat, or item 16,  
AS Cool) must be selected On.  
The daylight saving feature can be enabled or disabled in  
installer configuration menu. Default is DS ON (enabled).  
After entering installer configuration mode, momentarily  
press MENU button until the display indicates dS (in actual  
temperature digits) and on (default – in clock digits).  
or  
To use Auto Schedule, press RunSched to be sure you are in  
normal operating mode. In SYSTEM Heat mode, use the keys  
to select your “Comfort Temperature”. When your “Comfort  
Temperature” is selected, press Auto Sched button. The  
Auto Schedule key will disappear to indicate that the Auto  
Schedule command has been accepted.  
buttons will toggle display and operation from on to OFF.  
Programming Tip: Copy Program  
When programming your thermostat, you may copy the pro-  
gram from one day to another day or group of days using the  
Copy key. In 7 day programming mode, a day can be copied  
to another day or all six other days. In 5/1/1 day programming  
mode the weekday (Mon – Fri) program can be copied into  
Sat and Sun or either Sat or Sun.  
In Heat mode the thermostat will maintain your “Comfort Tem-  
perature” during the Morning, Day and Evening periods and  
setback 6° for the Night. Morning period will begin at 6:30 AM  
and Night period will begin at 10:30 PM.  
To copy a program from one day to another:  
1) In Set Schedule mode, enter the program for the day or  
select the day you wish to copy by pressing Advance Day.  
2) Press Copy. On the display, Copy will begin to flash. The  
day of the week being copied will show.  
3) Press Advance Day. The day being copied will be indi-  
cated and the other days will be flashing.  
To set the Auto Schedule temperature for Cool mode, press  
SYSTEM to change the mode to Cool and repeat setting the  
temperature. In Cool mode, the thermostat will maintain your  
selected “Comfort Temperature” continuously.  
The “Comfort Temperature” can be temporarily overridden  
by changing the setpoint temperature using the  
or  
4) If you wish to copy to all days skip to next step or press  
Advance Day until the day you wish to copy to is flashing.  
5) Press Copy. “Copy” will be on, the day you copied from  
will disappear and the day(s) you copied to will be on.  
6) If you wish to copy this same program into other days,  
press Copy and repeat steps 2 through 5.  
buttons. Once Auto Schedule has been set and the key has  
disappeared, it can be reset in the Installer/ Configuration  
menu.  
Entering Fan Program  
The fan can be programmed to turn on at the beginning of a  
period and remain on through the whole period. In RunSched  
mode when the FAN switch indicates Prog Fan On the fan is  
programmed to be on for the period.  
7) Press RunSched to return to normal operation.  
Fill in the blank schedule on the next page then:  
Enter the Heating Program  
1) Press SYSTEM button to select either "Heat" or "Cool" in  
the system switch area indicating the active mode being  
programmed.  
1) Press System button to select either Heat or Cool.  
2) Press Menu button and then press Fan button to the right  
of the display.  
3) The top of the display will show the day(s) being pro-  
grammed. The first period to be programmed will appear.  
4) Press the Fan button to change from Auto to Prog.  
5) Press the Fan button to the right of the display to change  
to the next period.  
6) Repeat steps 4 and 5 to program the fan for all periods of  
the day.  
7) Press Fan to advance to the next day of the week and  
repeat steps 4 through 7 to program the fan for all days of  
the week.  
2) Press the Menu button and then press Schedule.  
3) The top of the display will show the day(s) being pro-  
grammed. The first period to be programmed will appear.  
The set temperature will also be displayed and the time  
will be flashing to indicate that the time can be changed.  
4) Press  
or  
buttons to adjust the start time for the  
period. The time will change in 15 minute increments.  
5) Press the System Time button to change to the tempera-  
ture flashing.  
6) Press  
or  
buttons to change the temperature to  
your selected temperature for the first heating period.  
7) After you have set the time and temperature for the first  
period, press Schedule to advance to the next program  
period.  
8) Repeat steps 4 through 7 until all of the program times  
and temperatures are entered for all program periods for  
that day.  
9) Press Schedule button to change to the next day and  
repeat steps 4 through 8 until all program days and peri-  
ods are entered.  
10)When programming is complete and all of the times and  
temperatures match your desired heating schedule, press  
RunSched. The thermostat will now run your program.  
11  
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PROGRAMMING  
The example shows that the weight selected would prioritize  
the overall averaged temperature between the two sensors.  
The high weight selection caused the remote sensor to have  
a higher influence in the calculated temperature average than  
the local sensor and the low weight selection caused the  
remote sensor to have less influence.  
Wired Remote Temperature Sensing  
One remote temperature sensor can be installed indoor or  
outdoor and connected to the thermostat by a maximum  
cable length of 100 meters (300 feet). Terminals +, S and - on  
the terminal block allow connection of the remote sensor.  
The thermostat must have 24 VAC Common connection to  
terminal C for the remote sensor to operate. The remote sen-  
sor can be enabled or disabled in the Installer/Configuration  
menu, item 26.  
Dual Fuel Temperature Setpoint  
When the thermostat is configured for Heat Pump mode and  
the Dual Fuel feature is selected on, the thermostat can moni-  
tor the outside temperature or use software logic to determine  
when to switch to gas heat and shut down the compressor.  
This eliminates the need for a fossil fuel kit.  
When remote sensor, Remote, is selected Off (factory de-  
fault), no remote sensor is enabled. When remote sensor is  
selected On, the next step is to select the remote as indoor,  
Remote In, or outdoor, Remote Outdoor. If the remote is se-  
lected as Remote In, an additional step will be to select if the  
temperature shown on the display will be from the thermostat,  
LS On, or the remote sensor LS Off.  
The user selectable temperature is called the dual fuel tem-  
perature setpoint, dF and is set in the Installer/Configuration  
menu, items 27 or 28. With outdoor remote sensor available,  
the dual fuel temperature setpoint can be set to a tempera-  
ture of 5° through 50°. When outdoor remote sensor is not  
available, a software logic based dual fuel number from 01 to  
09 can be selected. Cd will not be available if dF is selected  
OFF.  
In normal operation, when a remote sensor is enabled the  
time digits of the display will alternate between the time and  
the remote temperature for three seconds each. Above the  
remote temperature will be Remote, for indoor sensor or  
Outdoor Remote, for outdoor sensor. If the remote sensor is  
an indoor sensor and the local display has been disabled, the  
temperature displayed as the room temperature will be the  
remote sensor temperature.  
After the dual fuel temperature setpoint is set and  
is  
pressed, a delay, Cd, can be set for compressor shutdown af-  
ter the auxiliary stage is energized. This delay can be set from  
0 seconds to 99 seconds to minimize the time that the system  
may blow cooler air until the alternate source of heat comes  
on. Default setting for delay is 60. When setting the delay, if  
Sensing Range:  
Outdoor temperature range is -40oF to 140oF  
Indoor temperature range is 32oF to 99oF  
the  
or  
buttons are held depressed, the setpoint will  
increase or decrease at the rate of one degree every half  
second for the first three seconds and double the speed after  
three seconds.  
Weighing of Remote Reading:  
The thermostat will weight or average the temperature of the  
indoor remote sensor with the local sensor in the thermostat  
for each program period. The averaging will be active only  
when the local sensor and the indoor remote sensor are both  
functional and enabled in the Installer/Configuration menu.  
Blower Balance Point  
With an air to air heat pump system, the indoor circulator  
blower discharge air temperature from the register is depend-  
ent on outdoor temperature. When the outdoor temperature  
is, for example, above 35 degrees, the discharge air is warm.  
But, when the outdoor temperature drops, the discharge air  
temperature also drops and is cooler. If the circulator blower  
speed is reduced, the air temperature will increase and the  
resident will feel warmer. The outdoor temperature compared  
to the blower balance point temperature determines the  
blower speed.  
When the thermostat is in the Set Schedule mode, the weight  
of the indoor sensor will be shown in the current temperature  
digits of the display. The weight will show as A2 (average and  
default), H4 (high) or L1 (low). Pressing the  
tons at the same time will change the weight for the program  
period. The weight of the thermostat sensor is fixed.  
or  
but-  
In normal operation of the thermostat, the current tempera-  
ture displayed will be the weighted average of the local  
sensor and the remote sensor using the formula (local sensor  
weight x local sensor temperature) + (remote sensor weight x  
remote sensor temperature) / (local sensor weight + remote  
sensor weight).  
Example: Local sensor temperature is 80° and the remote  
sensor is 70°.  
If weight is selected H4, the averaged temperature of 72° will  
be displayed.  
(1 x 80) + (4 x 70) / 5 = 72°  
If weight is selected A2, the average temperature of 73° will  
be displayed.  
(1 x 80) + (2 x 70) / 3 = 73.3°  
If weight is selected L1, the average temperature of 75° will  
be displayed.  
(1 x 80) + (1 x 70) / 2 = 75°  
12  
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TROUBLESHOOTING  
Reset Operation  
Note: When thermostat is reset, installer configuration menu settings and programming will reset to factory settings.  
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation, you can reset the thermo-  
stat by removing the wires from terminals R and C (do not short them together) and removing batteries for 2 minutes. After  
resetting the thermostat, replace the wires and batteries. If the thermostat has been reset and still does not function correctly  
contact your heating/cooling service person or place of purchase.  
Note: Be sure to review the installer configuration menu settings.  
To reset the programming, clock and configuration settings, press the SYSTEM button simultaneously. The thermostat should  
go blank and then all segments will be displayed momentarily.  
Symptom  
Possible Cause  
Corrective Action  
No Heat/No Cool/No Fan  
(common problems)  
1. Blown fuse or tripped circuit breaker.  
2. Furnace power switch to OFF.  
Replace fuse or reset breaker.  
Turn switch to ON.  
3. Furnace blower compartment door or  
panel loose or not properly installed.  
4. Loose connection to thermostat or system.  
Replace door panel in proper position to engage safety  
interlock or door switch.  
Tighten connections.  
No Heat  
1. Pilot light not lit.  
Re-light pilot.  
2. Furnace Lock-Out Condition. Heat  
may also be intermittent.  
Many furnaces have safety devices that shut down when  
a lock-out condition occurs. If the heat works intermittently  
contact the furnace manufacturer or local HVAC service  
person for assistance.  
3. Heating system requires service or  
thermostat requires replacement.  
Diagnostic: Set SYSTEM Switch to HEAT and raise the  
setpoint above room temperature. Within a few seconds  
the thermostat should make a soft click sound. This sound  
usually indicates the thermostat is operating properly. If  
the thermostat does not click, try the reset operation listed  
above. If the thermostat does not click after being reset  
contact your heating and cooling service person or place  
of purchase for a replacement. If the thermostat clicks,  
contact the furnace manufacturer or a HVAC service  
person to verify the heating is operating correctly.  
No Cool  
1. Cooling system requires service or  
thermostat requires replacement.  
Same as diagnostic for No Heat condition except set the  
thermostat to COOL and lower the setpoint below the  
room temperature. There may be up to a five minute delay  
before the thermostat clicks in Cooling.  
Heat, Cool or Fan  
Runs Constantly  
1. Possible short in wiring.  
Check each wire connection to verify they are not shorted  
or touching together. No bare wire should stick out from  
under terminal block. Try resetting the thermostat as de-  
scribed above. If the condition persists the manufacturer  
of your system or service person can instruct you on how  
to test the Heat/Cool system for correct operation. If the  
system operates correctly, replace the thermostat.  
2. Possible short in thermostat.  
3. Possible short in heat/cool/fan system.  
4. FAN Switch set to Fan ON.  
Thermostat Setting &  
Thermostat Thermometer  
Disagree  
1. Thermostat thermometer setting  
requires adjustment.  
The thermometer can be adjusted +/- 4 degrees. See  
Temperature Display Adjustment in the Configuration  
Menu section.  
Furnace (Air Conditioner)  
Cycles Too Fast or Too Slow  
(narrow or wide  
1. The location of the thermostat and/or  
the size of the Heating System may  
be influencing the cycle rate.  
Digital thermostats provide precise control and cycle  
faster than older mechanical models. The system turns  
on and off more frequently but runs for a shorter time  
so there is no increase in energy use. If you would like  
an increased cycle time, choose SL for slow cycle in the  
Configuration menu, step 7 (heat) or 8 (cool). If an ac-  
ceptable cycle rate is not achieved, contact a local HVAC  
service person for additional suggestions.  
temperature swing)  
Forgot Keypad  
Lockout Code  
Press the menu button (button will disappear) and hold in  
for 20 seconds. This unlocks the thermostat.  
13  
13  
NOTES  
14  
NOTES  
15  
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HOMEOWNER HELP LINE: 1-800-284-2925  
White-Rodgers is a division  
of Emerson Electric Co.  
The Emerson logo is a  
trademark and service mark  
of Emerson Electric Co.  
St. Louis, Missouri  
Markham, Ontario  

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