White Rodgers Thermostat 1F95 0671 User Manual

Blue Universal Thermostat  
with Automatic Heat/Cool  
Changeover Option  
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  
1F95-0671  
APPLICATIONS  
THERMOSTAT APPLICATION GUIDE  
1F95-0671 Universal 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 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 1.2°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
3
5
6
9
10  
14  
Wiring Diagrams  
Thermostat Quick Reference  
Installer Configuration Menu  
Operating Your Thermostat  
Programming  
Troubleshooting  
PART NO. 37-6979A  
0908  
 
WIRING DIAGRAMS  
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  
L............................................ Compressor diagnostic indicator for systems with diagnostic connection typically found on Heat pump  
systems or with Copeland's Comfort Alert  
Figure 2 – Single Stage or Multi-Stage System (No Heat Pump)  
with Single Transformer  
Jumper  
L
O/B  
W/E  
W2  
G
RH  
C
Y
RC  
Y2  
System  
O
Energized Constantly  
in  
Blower/  
Single  
Stage 1  
(SS1)  
Diagnostic  
Indicator  
Input  
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  
configured  
for Electric  
Heat)  
Stage  
Comfort Alert II Module  
NEUTRAL  
24VAC  
HOT  
or Similar System  
Diagnostic Module  
120VAC  
See Module Instructions  
for details  
* Common connection required for diagnostic or malfunction indication.  
CLASS II  
TRANSFORMER  
Single Stage and Multi-Stage Connections  
Refer to equipment manufacturers' instructions for specic  
system wiring information.  
SINGLE STAGE (SS 1) gas, oil or electric.  
MULTI-STAGE (MS 2) gas, oil or electric.  
This thermostat is designed to operate a single-transformer  
or two-transformer system.  
After wiring, see INSTALLER CONFIGURATION section for  
proper thermostat conguration.  
You can congure the thermostat for use with the following  
systems:  
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
Y2  
Y
C
W2  
System  
O
Energized Constantly  
in  
Blower/  
Single  
Stage 1  
(SS1)  
Circulator  
Fan Energized  
on Call for  
Cool (and  
Heat if  
No Output  
No  
Heat  
24 Volt 24 Volt Optional  
Diagnostic  
Indicator  
(Optional)  
Cool Mode  
Output  
Cool Mode  
1st Stage  
Mode  
(Hot) (Hot)  
Heat Cool  
24 Volt  
(Com-  
mon)  
1st Stage  
B
Energized Constantly  
in Heat, Off,  
Emergency  
Mode  
Multi-  
Stage 2  
(MS2)  
Cool  
Mode  
2nd  
Heat Mode  
2nd Stage  
configured  
for Electric  
Heat)  
Stage  
NEUTRAL  
24VAC  
HOT  
120VAC  
COOLING  
NEUTRAL  
120VAC  
HEATING  
24VAC  
HOT  
CLASS II  
TRANSFORMER  
CLASS II  
TRANSFORMER  
3
 
WIRING DIAGRAMS  
Figure 4 – Heat Pump Systems  
Jumper  
+W/E  
RC  
C
Y
Y2  
+W2  
G
RH  
L
O/B  
System  
Heat Mode - 2nd  
Heat Mode - 3rd  
Stage, Emergency Stage, Emergency  
Mode - 1st Stage Mode - 2nd Stage  
O
Blower/  
+Note: Dual Fuel option  
de-energizes Heat mode  
stage 1 (compressor)  
when auxiliary heat  
is energized  
+Note: Dual Fuel option  
de-energizes Heat mode  
stage 1 (compressor)  
when auxiliary heat  
is energized  
Heat Pump 1  
(HP1)  
Energized in  
No  
Circulator Fan  
Energized on  
Call for Heat  
or Cool.  
Optional*  
24 Volt  
(Com-  
mon)  
Cool Mode  
Output  
Diagnostic  
Indicator  
or System  
Malfunction  
Switch  
Heat and  
24 Volt 24 Volt  
Cool Mode  
1st Stage  
(Hot)  
Heat  
(Hot)  
Cool  
B
Heat Mode - 3rd  
Heat Mode-4th  
Set Elect/Gas  
Option for  
Emergency  
mode  
2nd  
Energized in  
Heat, Off,  
Emergency  
Mode  
Heat Pump 2  
(HP2)  
(Compressor)  
Stage. Emergency  
Stage, Emergency  
Stage  
(Com-  
pressor)  
Mode - 1st Stage Mode - 2nd Stage  
+Note: Dual Fuel option +Note: Dual Fuel option  
de-energizes Heat mode de-energizes Heat mode  
stage 1 (compressor)  
when auxiliary heat  
is energized  
stage 1 (compressor)  
when auxiliary heat  
is energized  
Comfort Alert II Module  
or Similar System  
NEUTRAL  
Diagnostic Module  
120VAC  
24VAC  
HOT  
See Module Instructions  
for details  
* Common connection required for diagnostic or malfunction indication.  
+ Dual Fuel option, if selected turns off compressor(s) when Auxiliary stages energize.  
CLASS II  
TRANSFORMER  
Heat Pump Connections  
HEAT PUMP TYPE 1 (HP 1). Single stage compressor  
system; gas or electric backup.  
Refer to equipment manufacturers' instructions for specic  
system wiring information.  
HEAT PUMP TYPE 2 (HP 2). Multi-stage compressor or two  
compressor system with gas or electric backup.  
This thermostat is designed to operate a single-transformer  
or two-transformer system.  
After wiring, see INSTALLER CONFIGURATION section for  
proper thermostat conguration.  
You can congure the thermostat for use with the following  
systems:  
Figure 5 – 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  
Blower/Circulator  
Fan Energized  
Closes  
Valve  
(6)  
Opens  
Valve  
(4)  
24 Volt  
(Hot)  
Heat  
(5)  
NEUTRAL  
24VAC  
HOT  
120VAC  
CLASS II  
TRANSFORMER  
4
 
THERMOSTAT QUICK REFERENCE  
Home Screen Description  
Figure 5 – Home Screen Display  
Room  
Temperature  
Setting  
Temperature  
Battery Level Indicator  
Indicating the current power level  
of the 2 “AA” batteries:  
Full power remaining.  
Half power remaining  
Change  
The batteries should  
be replaced at this time with 2 new  
premium brand “AA” Alkaline batteries.  
(See page 2 for more details)  
Fan  
Indicator  
System  
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 addi  
tional stages are on.  
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  
5
 
INSTALLER/CONFIGURATION MENU  
Thermostat must be in Heat, Cool or Auto. Press and hold the Menu button for at least 5 seconds. The display will show item  
#1 in the table below. Press Menu to advance to the next menu item. Press  
or  
to change a menu item options.  
INSTALLER/CONFIGURATION MENU  
Menu HP SS Press  
Displayed  
(Factory Default)  
Comments  
Press  
to select from listed  
options  
or  
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) for HP  
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
4
4
5
MENU  
MENU  
E (On)  
OFF  
Selects Energy Management Recovery (EMR)  
On or OFF.  
CR Heat (ME)  
SL, FA  
Selects Adjustable Anticipation, cycle rate, Heat  
(This item only appears when MS 2 or SS 1 is  
selected above)  
6
7
5
6
6
MENU  
MENU  
CR Heat Pump  
(ME)  
SL, FA  
Selects Adjustable Compressor Anticipation  
(Heat Pump) This item only appears when  
HP 1, HP 2 is selected above  
CR Cool (ME)  
or  
CR AU (FA)  
SL, FA  
SL  
Selects Adjustable Anticipation, cycle rate, cool  
(when MS 2 or SS 1 is selected above.) or  
Selects the cycle rate for Auxiliary stage (when  
HP 1 or HP 2 is selected above)  
8
9
7
8
7
8
MENU  
MENU  
CL (OFF)  
CL On  
Compressor Lockout Time  
Em Heat, Auto  
Cool Off  
Heat Cool Off,  
Heat Off with Fan icon,  
Heat Off without Fan icon  
Cool Off, Auto Off  
System Mode Configuration  
with Automatic Changeover capability  
or  
Heat, Auto,Cool Off  
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  
2
Defaults 7-day programming (P7) but non-  
programmable (0) or 5/1/1 programming (P3)  
is available on most models.  
PS (4)  
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  
6
 
INSTALLER/CONFIGURATION MENU  
21  
22  
20 18 MENU  
21 19 MENU  
dS (On)  
Off  
Selects Automatic Daylight Saving Time option  
(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  
06-50  
Selects personal lockout code. 000 is NOT A  
VALID CODE.  
23  
24  
25  
L Heat  
(99)  
Select Limited HEAT Range Temperature  
L Cool  
(45)  
Select Limited COOL Range Temperature  
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 if CO is greater than 05  
Cd  
(60)  
Selects Compressor delay OFF time in seconds  
(only if dF is selected)  
26  
27  
25  
AO  
(80)  
Selects AO (Auxiliary OFF) temperature. Fea-  
ture disabled if 80 is selected. Outdoor Remote  
required  
26 22 MENU Change Filter (OFF)  
MENU Change Filter (200 h)  
On  
Selects Filter Change-out Indicator On or OFF.  
25-1975 h  
Change Filter time in 25 hour increments. This  
menu only appears if On is selected in above.  
28  
27 23 MENU  
MENU  
(OFF)  
Change UV Lamp  
On  
Selects UV Lamp  
Timer: On/OFF  
(350)  
Change UV Lamp  
25-1975  
Selects number of Days between  
changing UV Lamp  
29  
30  
28 24 MENU  
29 27 MENU  
Cool On (o)  
Heat On (b)  
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:  
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  
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.  
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.  
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.  
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,  
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  
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  
specify. Heating will start approximately 5 minutes early  
(15 minutes for heat pump) for every 1° of temperature  
required to reach setpoint.  
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 approxi-  
mately 15 minutes per degree, because it takes longer to  
reach set temperature.  
7
 
INSTALLER/CONFIGURATION MENU  
5, 6 & 7) Cycle Rate Selection – The factory default setting for 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  
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).  
above the actual temperature using  
the second stage  
To change cycle rate, press the  
or  
button.  
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  
remote temperature reading will be used for control  
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).  
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"  
terminal 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 momentarily  
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  
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.  
locks all keys.  
"Keypad Lockout and P" = Partial Lockout. Partial Lock-  
out allows only the  
your set temperature limits.  
or  
buttons to operate within  
"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 "4 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.  
16 & 17) Select Automatic Schedule – With just one touch  
of the Auto Schedule key this feature allows you to pro-  
gram 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 activated 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.  
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.  
23)Limited Heat Range – This feature provides a maximum  
setpoint temperature for heat. The default setting is 99°F.  
It can be changed between 62°F and 98°F by pressing the  
or  
button.  
8
 
INSTALLER/CONFIGURATION MENU  
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  
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.  
28)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 recom-  
mended maintenance schedule.  
25)Select Compressor Off (CO) Feature Using Outdoor  
Sensor – 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 >05°F  
(-15°C), the thermostat will use the outdoor sensor tem-  
perature to determine when to switch to gas heat and shut  
down the compressor.  
When the outdoor temperature goes below the selected  
temperature, the gas heat will begin. Default is 05 (Off or  
disabled), but can be set in the range of 06 to 50 using the  
When "Change UV Lamp" is displayed, you can clear it  
by pressing MENU.  
or  
buttons.  
29)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.  
Select dF or EA – If CO is set > 05°F (-15°C), select dF  
(default) if your system has a fossil fuel (gas or oil) Auxil-  
iary heat. Select EA if your system has Electric Auxiliary  
heat and you want the compressor to continue to run  
while calling for Auxiliary stage.  
Select Compressor Delay (Cd) – If dF is selected, 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 to 60, but can be set in the range of 0  
to 99 using  
or  
buttons.  
26)Select Auxiliary Off (AO) – This feature is applicable only  
in heat pump modes and with an outdoor sensor installed  
and enabled. Select the temperature that will inhibit the  
auxiliary heating stage. As long as the outdoor tempera-  
ture 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.  
27)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  
OPERATINGYOUR THERMOSTAT  
Check Thermostat Operation  
NOTE  
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.  
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. Press FAN button to select ON. The blower should begin  
to operate.  
3. Press FAN button to select AUTO. The blower should  
stop immediately.  
4. Press  
to adjust the thermostat below room tempera-  
ture. The heating system should stop operating.  
9
 
OPERATINGYOUR THERMOSTAT  
Choose the System Setting  
Emergency System  
EM bypasses the Heat Pump to use the heat source wired to  
terminal W/E on the thermostat. EM is typically used when  
compressor operation is not desired, or you prefer back-up  
heat only.  
(Cool, Off, Heat, Em, Auto)  
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 EM. “EM” 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" and flashing  
"EM" to indicate that the Emergency system is operating.  
3. Press  
to adjust the thermostat below room tempera-  
ture. The Emergency heating system should stop operat-  
ing.  
Em: 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)  
4. Press  
to adjust the temperature setting above room  
temperature. The cooling system should stop operating.  
Press the  
or  
button to adjust the temperature. This  
will override the temperature setting for a two hour override  
period.  
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.  
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.  
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 button to enter installer menu. Then press  
Time button once to indicate hour & AM or PM designa-  
tion 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 automatic).  
2) Press and hold either the  
or  
button until you  
10) 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.  
reach the correct day of the month and day of the week  
is automatically calculated and displayed at the top row.  
11) Press RunSched button 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  
10  
 
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  
11  
 
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 16, AS Heat, or item 17,  
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.  
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.  
1) Press SYSTEM button to select Heat in the system switch  
area indicating the active mode being programmed.  
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.  
12  
 
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 20.  
Dual Fuel Temperature Setpoint  
When the thermostat is configured for Heat Pump mode  
and an outside remote sensor is installed and enabled, the  
thermostat can monitor the outside temperature to determine  
when to switch to auxiliary heat and shut down the compres-  
sor. 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,  
Loc On, or the remote sensor Loc Off.  
The Compressor Off temperature (CO) set in the configura-  
tion menu, item 25, will determine when the auxiliary heat will  
start and the compressor will shut off. Default setting is 05°F.  
-15°C (feature disabled) and can be set for 06 to 50°. When  
the outside temperature falls to the selected temperature, the  
auxiliary heat system will begin.  
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.  
The auxiliary heat system can be fossil fuel (dF) or electric  
heat (EA). This is selected after CO is set greater than 05°. If  
the auxiliary heat is fossil fuel, (df), a delay time for the com-  
pressor shut down (Cd) can be selected. Default for this delay  
is 60 seconds but can be set from 0 to 99 seconds. If EA is  
selected, there is no selection for Cd because the compres-  
sor will shut down immediately.  
Sensing Range:  
Outdoor temperature range is -40oF to 140oF  
Indoor temperature range is 32oF to 99oF  
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.  
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  
or  
but-  
tons at the same time will change the weight for the program  
period. The weight of the thermostat sensor is fixed.  
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°  
13  
 
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  
or  
and 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.  
14  
 
NOTES  
15  
 
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.  
 

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