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1F85RF-275 Thermostat and  
Wireless Remote Sensor Kit  
Save these instructions  
for future use!  
Automatic Heat/Cool Changeover Thermostat for Single Stage/  
Multi-Stage/Heat Pump Systems with Wireless Remote Sensor  
Installation and Operating Instructions for Model:  
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS  
CAREFULLYBEFOREINSTALLINGOROPERATINGTHIS  
CONTROLCOULDCAUSEPERSONALINJURYAND/OR  
PROPERTYDAMAGE.  
Model  
Programming Choices  
Non-Programmable 5/1/1 Day  
1F85RF-270  
F145RF-1328  
Wireless Remote Sensor  
APPLICATIONS  
THERMOSTATAPPLICATIONGUIDE  
Description  
Heat Pump (No Auxiliary or Emergency Heat)  
Heat Pump (with Auxiliary or Emergency Heat)  
Standard Heat & Cooling Systems  
Multi-Stage Systems requiring more than  
One Call for Heat or Cool  
Yes  
Yes  
Yes  
Yes  
Standard Heat Only Systems  
Yes  
No  
Millivolt Heat Only Systems – Floor or Wall Furnaces  
Standard Central Air Conditioning  
Gas or Oil Heat  
Yes  
Yes  
Yes  
* Yes  
No  
1F85RF-270  
Electric Furnace  
Hydronic (Hot Water) Zone Heat – 2 Wires  
Hydronic (Hot Water) Zone Heat – 3 Wires  
Wireless Remote Sensor  
* Common Connection Required  
SPECIFICATIONS  
Thermostat:  
Remote Sensor:  
Electrical Ratings .......................... 20 to 30 VAC 50/60 Hz  
0.2 to 0.6 Amps per Load  
(Y1, E/W1, G)  
This device complies with Part 15 of the FCC Rules, Operation  
is subject to the following two conditions: (1) this device may  
not cause harmful interference, and (2) this device must accept  
any interference received, including interference that may cause  
undesired operation.  
1.5 Amps (Y2, W2, O, B  
Load per terminal)  
1.5 Amps Max  
(All terminals combined)  
Setpoint Range .............................. 45 to 90°F (7 to 32°C)  
Rated Differential (Single Stage)... Heat 0.6° or 1.5°F, Cool 1.2°F  
Rated Differential (Multi-Stage)..... Heat 0.6° or 1.5°F, Cool 1.2°F  
Rated Differential (Heat Pump)..... Heat & Cool 0.75° or 1.2°F  
Operating Ambient ........................ 32 to +105°F (0 to +41°C)  
Operating Humidity ....................... 90% non-condensing max.  
Shipping Temp. Range.................. -4 to +150°F (-20 to +65°C)  
Thermostat Dimensions ............... 3-3/4"H x 6"W x 1-1/4"D  
Maximum Wireless Remote Sensors .....1 indoor, 1 outdoor  
Operating Range ....................................45 to 90°F (7 to 32°C)  
Operating Humidity Range .....................0 to 90% RH  
(non-condensing)  
Dimensions .............................................2-5/8"H x 4-1/4"W x 7/8"D  
* Max. Distance from Thermostat ..........200 feet  
* Distance shown is for a typical application. Distances may vary in  
some applications because obstacles that block the signal path  
may affect the strength of the signal.  
ATTENTION:MERCURYNOTICE  
This product does not contain mercury. However, this prod-  
uct may replace a product which contains mercury.  
CAUTION  
!
To prevent electrical shock and/or equipment dam-  
age, disconnect electric power to system at main fuse  
or circuit breaker box until installation is complete.  
Mercury and products containing mercury must not be dis-  
carded 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 and send it  
to:  
Index  
Page  
Installation  
2
3
Wiring Connections  
Thermostat/Sensor Quick Reference  
Installer Configuration Menus  
Operating Your Thermostat and Sensor  
Programming  
4
6
White-Rodgers  
2895 Harrison Street  
Batesville, AR 72501  
9
13  
14  
Troubleshooting  
PART NO. 37-6841B  
www.white-rodgers.com  
Replaces 37-6841A  
0745  
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INSTALLATION  
8. Remove the battery tags in both the thermostat and  
sensor and replace the covers by lining them up with the  
base and pressing until they snap into place.  
ELEC/GAS SWITCH  
WARNING  
!
Thermostat installation and all components of the  
control system shall conform to Class II circuits per the  
NEC code.  
RC/PS  
SWITCH  
ANTENNA  
WIRE  
Remove Old Thermostat  
MOUNTING  
HOLE  
MOUNTING  
HOLE  
A standard heat/cool thermostat consists of three basic parts:  
1. The cover, which may be either a snap-on or hinge type.  
2. The base, which is removed by loosening all captive  
screws.  
CM/NO CM  
SWITCH  
Figure 1 – Thermostat base  
3. The switching subbase, which is removed by unscrewing  
the mounting screws that hold it on the wall or adapter  
plate. Before removing wires from old thermostat,  
label each wire with the terminal designation from  
which it was attached. Disconnect the wires from the old  
thermostat one at a time. Do not let wires fall back into  
the wall.  
ANTENNA  
WIRE  
REMOTE  
COMMUNICATION  
RECEIVER  
Figure 2 – Back of thermostat base  
MOUNTING HOLE  
Guidelines for Thermostat/Sensor Locations  
ANTENNA  
Locate the thermostat/sensor about 5 ft. above floor level on  
an interior wall in an area that represents the average room  
temperature.  
MOUNTING HOLE  
Do not mount directly on or near HVAC equipment or other  
sources of electrical noise.  
Figure 3 – Remote sensor base  
Avoid locations close to windows or near adjoining outside  
walls, doors leading outside, areas close to air registers or  
their direct air flow or areas with poor circulation like alcoves.  
Avoid locating the sensor on a concrete wall, junction box or  
metal plate. Make sure there are no electrical wires, metal,  
pipes or duct work in the part of the wall chosen for the  
sensor location.  
Battery Location  
The thermostat requires 2 "AA" alkaline batteries and the  
sensor requires 2 "AAA" alkaline batteries. Batteries are  
included at the factory with a battery tag to prevent power  
drainage. The battery tag must be removed to engage the  
batteries. For best results, replace batteries once a year with  
new premium brand alkaline batteries such as Duracell® or  
Energizer®.  
Thermostat and indoor sensor are not approved for  
installation in unconditioned space.  
Electric/Gas Switch (Fan Option)  
Mounting Thermostat and Sensor  
1. Remove the packing material from the thermostat and  
sensor.  
2. Pull the front covers of the thermostat and sensor straight  
off the bases. Forcing or prying will cause damage to the  
controls.  
The ELEC/GAS switch is factory set to the ELEC position. In  
this position, the thermostat will power the circulator fan on a  
call for heat. Electric heat systems may require the switch to  
be in the ELEC position.  
If your system does not require that the thermostat power the  
circulator fan, this switch should be set to the GAS position.  
Typically, gas and oil heating systems do not require the  
thermostat to power the circulator fan during a call for heat. If  
your heat is gas or oil, the switch should be set to the GAS  
position.  
3. Using the thermostat and sensor bases as templates,  
place them on the selected wall locations and mark the  
location of all mounting holes (Figure 1 and 3), and the  
hole for the thermostat antenna wire illustrated in Figure 2.  
4. Move bases out of the way and drill the holes. If mounting  
holes drilled are too large and do not allow you to tighten  
base snugly, use the plastic screw anchors (provided) for  
secure mounting.  
5. Make sure the remote communication receiver is plugged  
in properly to the thermostat and that the antenna wire is  
routed through the thermostat subbase as shown in  
Figure 2.  
6. Fasten bases loosely to wall, using two mounting screws  
for each. Place a level against bottom of base (leveling is  
for appearance only and will not affect sensor operation)  
and then tighten screws.  
7. In the thermostat location, push excess wire into wall and  
plug hole with a fire resistant material (such as fiberglass  
insulation) to prevent drafts from affecting the thermostat  
operation.  
When the thermostat is configured for Heat Pump, the  
thermostat will always power the circulator fan on a call for  
heat in the HEAT mode. The ELEC/GAS switch must be set  
to match the type of Auxiliary heat your system uses for  
proper operation in the EMERgency mode.  
RC/PS Switch (Thermostat Power Option)  
RC/PS  
Switch  
Position  
RC  
Description  
For Hardwire Applications. Requires Common Wire  
from System Transformer to "C" Terminal on Thermostat  
For Power Stealing Applications. Use When Common  
from the System Transformer is not Available for  
Connection to the "C" Terminal on the Thermostat  
PS  
NOTE: If set to PS (Power Stealing), the thermostat "C" terminal  
must not have a wire connected.  
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WIRINGCONNECTIONS  
Typical wiring diagrams are provided below for the following systems:  
Single Stage Heat/Cool systems  
Multi-Stage Heat/Cool systems (No Heat Pump)  
Heat Pump system, one compressor or one speed compressor with Aux. Heat  
Heat Pump systems, two compressors or two speed compressor with Aux. Heat  
Refer to the equipment manufacturers instructions for specific wiring information. After completing the connections configure  
the thermostat in the Installer Configuration Menu to match your system type.  
Figure 4 – Single Stage (No Heat Pump) Terminal Outputs  
W2  
E/W1  
B
R
*C  
Y1  
Y2  
G
O
L
System  
Blower/  
Circulator  
Energized  
Fault  
Energized  
in Cool  
24 Volt  
(Common)  
Optional  
Fan Energized  
on Call for  
in Heat, Off Indicator  
24 Volt  
(Hot)  
Cool Mode  
1st Stage  
(Compressor)  
Heat  
Mode  
(Change-  
over Valve  
for Heat  
Pump  
Systems  
Single Stage  
(SS1)  
Mode  
No Output No Output  
Mode  
Cool or Fan,  
Energized on  
Call for Heat if  
Elect/Gas  
Switch Set to  
Electric  
(Change-  
over Valve  
or Damper)  
1st Stage  
(Heater)  
Connection  
or Damper) with  
Malfunction  
Switch  
NEUTRAL  
24VAC  
HOT  
120VAC  
CLASS II  
TRANSFORMER  
* The RC/PS switch shown in Figure 1 configures the thermostat for Hardwire or Power Stealing.  
The factory setting is RC (Hardwire) and requires a Common connection from the system transformer to the "C" terminal on  
the thermostat. If no common wire is available for the thermostat "C" terminal, move the RC/PS switch to PS (Power Steal-  
ing). NOTE: If set to PS (Power Stealing), the thermostat "C" terminal must not have a wire connected.  
Figure 5 – Multi-Stage (No Heat Pump) Terminal Outputs  
W2  
E/W1  
B
R
*C  
Y1  
Y2  
G
O
L
System  
Blower/  
Circulator  
Energized  
Fault  
Energized  
in Cool  
24 Volt  
Fan Energized  
on Call for  
in Heat, Off Indicator  
24 Volt  
(Hot)  
Heat  
(Common) Cool Mode  
Cool Mode Heat  
2nd Stage Mode  
Mode  
(Change-  
over Valve  
for Heat  
Pump  
Systems  
Multi-Stage  
(MS2)  
Mode  
Mode  
Optional  
Connection  
1st Stage  
Cool or Fan,  
Energized on  
Call for Heat if  
Elect/Gas  
Switch Set to  
Electric  
(Change-  
over Valve  
or Damper)  
(Compressor 1) (Compressor 2)  
1st Stage  
2nd Stage  
or Damper) with  
Malfunction  
Switch  
NEUTRAL  
24VAC  
HOT  
120VAC  
CLASS II  
TRANSFORMER  
* The RC/PS switch shown in Figure 1 configures the thermostat for Hardwire or Power Stealing.  
The factory setting is RC (Hardwire) and requires a Common connection from the system transformer to the "C" terminal on  
the thermostat. If no common wire is available for the thermostat "C" terminal, move the RC/PS switch to PS (Power Steal-  
ing). NOTE: If set to PS (Power Stealing), the thermostat "C" terminal must not have a wire connected.  
Figure 6 – Heat Pump Terminal Outputs  
W2  
E/W1  
B
R
*C  
Y2  
G
O
L
Y1  
System  
Heat  
Blower/  
Heat Pump 1  
(HP1)  
Mode  
Circulator  
2nd Stage.  
Emergency  
Mode 2nd  
Stage  
Energized  
Fault  
Fan Energized Energized  
No Output  
Single  
24 Volt  
on Call for  
in Cool  
in Heat, Off, Indicator  
Emergency for Heat  
Compressor  
Heat Pump  
24 Volt  
(Hot)  
(Common) Heat Mode-  
Heat/Cool  
Mode  
Emergency  
Mode  
Optional  
Connection Cool Mode-  
1st Stage  
1st Stage  
or Fan,  
Mode  
Pump  
(Change-  
Heat  
Mode  
3rd Stage.  
Emergency  
Mode 2nd  
Heat Pump 2  
1st Stage  
Heat Mode-  
2nd Stage  
Cool Mode-  
2nd Stage  
(Change-  
Systems  
over Valve)  
Note: Set  
(HP2)  
over Valve) with  
Elect/Gas  
(Compressor 1)  
Two  
Malfunction  
Switch  
switch for  
Compressor  
or Two Speed  
Compressor  
Emergency  
Mode Heat Type  
(Compressor 2) Stage  
NEUTRAL  
24VAC  
HOT  
120VAC  
CLASS II  
TRANSFORMER  
* The RC/PS switch shown in Figure 1 configures the thermostat for Hardwire or Power Stealing.  
The factory setting is RC (Hardwire) and requires a Common connection from the system transformer to the "C" terminal on  
the thermostat. If no common wire is available for the thermostat "C" terminal, move the RC/PS switch to PS (Power Steal-  
ing). NOTE: If set to PS (Power Stealing), the thermostat "C" terminal must not have a wire connected.  
3
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THERMOSTAT/REMOTESENSORQUICKREFERENCE  
Before operating the thermostat, familiarize yourself with the  
display and button functions. Both thermostat and remote  
sensor consist of two parts: the cover and the base. To remove  
a cover, pull it straight out from the base. To replace a cover, line  
it up with the base and press until the cover snaps into place on  
the base.  
2
The Thermostat Buttons and Switches and Display  
Raises and lowers the temperature setting.  
1
2
Light flashes every 20 seconds indicating acceptable  
signal reception from indoor or outdoor remote sensor.  
5
4
Buttons for setting time (Time), programming (Prgm),  
running program (Run) and bypassing program to  
hold a constant temperature (Hold).  
3
6
7
SYSTEM button (COOL, AUTO, HEAT, OFF, EMER  
heat pump systems only).  
4
8
9
FAN switch (ON, AUTO).  
5
6
10  
Displays the active temperature sensor (outside,  
remote, local) and its sensed temperature.  
Displays ( ) when in keypad lockout mode.  
Indicates day of the week.  
7
8
9
12  
15  
11  
13  
Indicates the thermostat mode information:  
"HOLD" alternates with the system mode (see item 12)  
if the HOLD button is pressed to bypass the program  
and maintain a constant temperature.  
14  
Displays currently programmed set temperature (blank  
when SYSTEM is OFF).  
10  
11  
16  
Alternately displays the current time and the tempera-  
ture average of sensors (thermostat [local] and/or  
indoor remote) turned on.  
17  
Figure 7 – Thermostat display, buttons and switches  
18  
"HEAT" is displayed when set to heating,  
"COOL" is displayed when set to cooling,  
"AUTO" is displayed when set for automatic change-  
over between heating and cooling.  
When "AUTO" is displayed, the currently active mode  
(Heat or Cool) will also display.  
12  
Displays "LR" when the limited range feature is  
activated. Limited range limits the temperature the  
thermostat can be set to.  
14  
"EMER" is displayed flashing (heat pump systems  
only) when the thermostat is set to the Emergency  
Mode. Emergency is used to bypass the heat pump  
and use only the back-up heating system.  
"FLTR" is displayed as a reminder to change or clean  
the air filter after system has run for the programmed  
filter time period.  
Indicates the system is sending a fault signal to the  
thermostat "L" terminal. This does not indicate a fault  
in the thermostat.  
15  
Antenna will display for a few seconds when the remote  
or outdoor transmitted signal is received.  
16  
17  
18  
Stage 1 & 2 indicator.  
13  
Displays "LOW BATT" when the 2 "AA" batteries are  
low and should be replaced.  
"STG 1" indicates when the first stage heat or cool is  
energized. "STG + 2" indicates when the second stage  
heat or cool is energized. "+2" blinking indicates  
Auxiliary Heat stages are energized on Heat Pump  
Systems.  
Indicates the current signal strength level of the remote  
temperature system. Signal strength level is low (one  
bar on), medium (two bars on) or high (three bars on).  
The remote will operate with 1 bar showing.  
4
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THERMOSTAT/SENSORQUICKREFERENCE  
The Sensor Buttons and Display  
Figure 8 – Remote Sensor display and buttons  
Raises the setting.  
1
2
3
Lowers the setting.  
1
2
Sensed temperature from –40 to 140°F with °F and °C  
indicator  
Channel identification A B C O indicator  
4
5
Normal Operation  
9 bar comfort adjust graph with H (hotter) and C (cooler)  
3
Transmission occurrence indicator  
Keypad lockout indicator  
6
7
o
6
4
5
Calibrate temperature offset indicator  
Learn mode activated indicator  
Low battery indicator  
8
A
9
10  
11  
12  
Temperature offset used when hold time is active  
Configuration Items  
Alternates PWR and on to indicate normal operation  
3
with display turned OFF  
5
o
H
C
6
7
LOCK  
ABCO  
CALIB  
4
8
5
PWR HLD BATT LEARN  
5
12  
10  
9
11  
5
                                                                 
D
                                                                 
                                                                    
i
                                                                    
                                                                     
s
                                                                     
                                                                       
p
                                                                       
                                                                         
l
                                                                         
                                                                          
a
                                                                          
                                                                            
y
                                                                            
                                                                              
e
                                                                              
                                                                                
d
                                                                                
                                                                                                      
P
                                                                                                      
                                                                                                        
r
                                                                                                        
                                                                                                         
e
                                                                                                          
                                                                                                            
s
                                                                                                            
                                                                                                              
s
                                                                                                              
                                                                                                                      
o
                                                                                                                      
                                                                                                                        
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THERMOSTAT CONFIGURATION MENU  
INSTALLER/CONFIGURATIONMENU  
Press the System button until OFF is displayed, then press the  
Press  
Button(s) (Factory Default)  
and  
simultaneously  
Comments  
Step  
1
to select  
System  
MS2  
SS1, HP2, HP1  
Selects Single stage, Multi-stage, or Heat Pump  
(Single stage or 2-stage) system configuration  
2
System  
LER (OFF)  
LER (ON)  
Selects learn mode OFF or ON  
3
4
System  
System  
System  
System  
System  
System  
System  
System  
System  
System  
System  
System  
OUTSIDE(OFF)  
REMOTE(OFF)  
LOCAL (ON)  
CH(0)  
OUTSIDE(ON)  
REMOTE(ON)  
LOCAL (OFF)  
1 to 9  
Selects OUTSIDE sensor OFF or ON  
Selects REMOTE (indoor) sensor OFF or ON  
Selects LOCAL sensor ON or OFF  
5
6
Select Receiver frequency offset  
7
PRG 4  
PRG 0, PRG 2  
EMR(OFF)  
Selects Programmable Periods  
8
EMR(ON)  
Selects Energy Management Recovery OFF or ON  
Selects Fast or Slow cycle selection  
9
CR HEAT COOL (FA)  
CL (OFF)  
SL  
10  
11  
12  
13  
14  
CL (ON)  
Selects Compressor Lockout CL OFF or ON  
Selects Backlight Display ON or OFF  
CdL (ON)  
CdL (OFF)  
FA HEAT COOL (ON)  
0 FLTR  
FA HEAT COOL (OFF)  
0–1950 (increments of 50)  
4 LO to 4 HI  
Selects Fast Second Stage ON or OFF  
Selects filter replacement run time.0 =Disabled  
Selects Temperature Display Adjustment 4 LO 4 HI  
0 F  
(Room Temperature)  
15  
16  
System  
System  
4:00 HOLD  
0:00 to 8:00  
(Increments of 15 minutes)  
Selects Temporary Program Override Time  
0:00 =Disabled  
F
C
For C selection  
Selects temperature display as F° or C°  
17  
18  
19  
20  
21  
System  
System  
System  
System  
LR HEAT (90)  
LR COOL (45)  
CA (OFF)  
LR 62 to LR 89  
LR 46 to LR 82  
CA (ON)  
Selects Limited HEAT range  
Selects Limited COOL range  
Selects Comfort Alert Lock  
Selects Buttonpad Lockout  
OFF LOCK  
0 00 LOCK  
ON LOCK  
001 to 999  
Selects Buttonpad lockout combination number  
Press System to set code  
Run  
Returns to the OFF mode  
2) Select Learn Mode On or Off – Selecting LER On  
enables the learn mode of the thermostat receiver. Your  
thermostat is configured at the factory to recognize the  
remote sensor shipped with it. The Learn Mode Option is  
used only when required as described in Learn Mode  
Option.  
3) Selects OUTSIDE sensor OFF or ON – Selecting  
OUTSIDE ON enables the thermostat to read a wireless  
outdoor temperature sensor that has been configured for  
Sensor O in the Learn Mode. This allows the thermostat  
to display the outdoor temperature reading.  
4) Selects REMOTE sensor OFF or ON – Selecting  
REMOTE ON allows the thermostat to sense an indoor  
remote sensor that has been set-up the Learn mode. The  
maximum number of Indoor Remote Sensors is 1  
configured to sensor A, B or C.  
5) Selects LOCAL sensor ON or OFF – Selecting LOCAL  
ON allows the thermostat to use the onboard temperature  
sensor exclusively or for averaging with the remote  
sensor readings. To control temperature using only the  
The configuration menu allows you to set certain thermostat  
operating characteristics to your system or personal require-  
ments.  
Set SYSTEM button to OFF, then simultaneously press  
and  
to enter configuration menu. The display will  
show the first item in the configuration menu.  
The configuration menu table summarizes the configuration  
options. An explanation of each option follows.  
Press SYSTEM to change to the next menu item. To exit the  
menu and return to the program operation, pressRUN. If no  
keys are pressed within fifteen minutes, the thermostat will  
revert to normal operation.  
1) Single Stage, Multi-stage or Heat Pump Configuration  
This menu item requires you configure the thermostat to  
match your system. Choose your system option from the  
table below:  
System Type  
Select Option  
SS1  
Single Stage Heat/Cool systems  
indoor remote sensor temperature(s), use the  
buttons to select LOCAL OFF.  
or  
Multi-Stage Heat/Cool systems (No Heat Pump)  
Heat Pump system, 1 compressor or 1 speed compressor  
Heat Pump systems, 2 compressors or 2 speed compressor  
MS2  
HP1  
6) Select Receiver frequency offset – This option allows  
you to select a different channel than the factory default  
for communication between the thermostat and remote  
sensor. Note: If a different channel is selected on the  
thermostat it must also be changed to the same  
HP2  
The thermostat is factory defaulted to MS2. To select a  
different option, press the  
the choices.  
or  
key to scroll through  
6
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THERMOSTAT CONFIGURATION MENU  
setting on the remote. This is only used in areas where  
there are other wireless devices or electronic equipment  
that interfere with the default frequency of the thermostat/  
remote sensor communication.  
4° higher or lower. Your thermostat was accurately  
calibrated at the factory but you have the option to  
change the display temperature to match your previous  
thermostat. The current or adjusted room temperature will  
be displayed on the left side of the display.  
7) Programmable Periods – This control can be config-  
ured for 4, 2 or 0 programmable periods. The display  
indicates "PRG 4" in the display as default. The program-  
mable periods can be changed to 2 or 0 by pressing the  
15)Select Temporary Program Override Time – The thermo-  
stat can hold any temperature you set it to for the amount  
of time you select on this option. Your choices are 0:00 to  
8:00 hours in 15 minute increments. 0:00 means disable.  
Example:  
or  
keys. With "PRG 0" selected for non-program-  
mable, SYSTEM key selection will skip EMR (item 8) and  
temporary program override (item 15).  
1. You have selected 3:00 hours for the Temporary Pro-  
gram Override time period.  
2. With the thermostat set to Heat or Cool, press HOLD  
for approximately 5 seconds until "HOLD time 3:00"  
(indicating 3 hours) appears as a setting reminder.  
3. After releasing the button, "HOLD" on the display will  
blink.  
8) Select Energy Management Recovery OFF or ON –  
Energy Management Recovery (EMR) causes the  
thermostat to start heating or cooling early to make the  
building temperature reach the program setpoint at the  
time you specify. Heating will start 5 minutes early for  
every 1° of temperature required to reach setpoint.  
Example: You select EMR and have your heating  
programmed 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 thermo-  
stat setpoint will change to 70° at 6:35 AM. Cooling allows  
more time per degree because it takes longer to reach  
temperature.  
9) Fast or Slow Cycle Selection – The factory default  
setting is fast cycle, which cycles 1st stage at approxi-  
mately 1.2°F and 2nd stage 0.75°F. If you prefer slow  
cycle, press the temperature key to change to SL. The 1st  
stage and 2nd stage would be 1.5°F and 1.2°F respec-  
tively.  
10)Select Compressor Lockout CL OFF or ON – Selecting  
CL ON will cause the thermostat to wait 5 minutes before  
turning on the compressor if the heating and cooling  
system loses power. It will also wait 5 minutes minimum  
between cooling and heating 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 manufac-  
turer 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 about five  
minutes.  
11)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 keep the light on momentarily after any key is  
pressed. When the "C" terminal is not powered, the light  
will be on momentarily after any key is pressed no matter  
the backlight is selected ON or OFF.  
4. Use  
or  
to set the temperature to your prefer  
ence. The thermostat will maintain this temperature  
setting for 3 hours with "HOLD" blinking to remind you  
it is in Temporary Hold. After 3 hours, the thermostat  
will go back to the program temperature and "HOLD"  
will no longer blink or display.  
16)Select F° or C° Readout – Changes the display readout  
to Celsius or Fahrenheit as required.  
17)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 89°F by pressing the  
or  
key.  
18)Limited Cool Range – This feature provides 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  
or  
key.  
19)Comfort Alert – This feature is available in Passive  
mode on this thermostat. If a Comfort Alert module is  
connected, the thermostat will receive and flash the fault  
codes from the Comfort Alert module.  
20 & 21) Keypad Lockout – This menu selection will  
display lock ( ) icon. The  
and  
are used to toggle  
the function and display the lock icon and OFF (keypad  
not locked out, default) indicating in the time digits to the  
lock icon and ON (keypad locked out). When the keypad  
lockout function is enabled (ON), and the SYSTEM button  
is pressed again, the display will indicate the number 000  
(default, still disabled) in the time digits. The  
and  
are used to set the combination number from 0 to 999. If  
a combination of 000 is selected and the SYSTEM button  
is pressed, the menu will be exited and keypad will not be  
locked. If 1 to 999 is selected and the SYSTEM button is  
pressed again, the combination is locked into non-volatile  
memory and the menu is exited. The lock icon (to  
designate keypad locked with a valid combination) will  
display when the menu is exited. The SYSTEM button will  
operate for 10 seconds after the menu mode is exited to  
allow the user to change the mode from OFF to the  
desired system mode.  
12)Select Fast Second Stage On or OFF – For Heat:  
During normal operation if the setpoint temperature is  
manually raised by 3°F or more above the actual tem-  
perature with the  
button, and the fast second stage  
feature is enabled, FA ON, the second stage will energize  
immediately.  
For Cool: During normal operation if the setpoint tempera-  
ture is manually lowered by 3°F or more below the actual  
While the keypad is locked out, a simultaneous press of  
and  
will enter the menu item from any mode  
temperature with the  
button, and the fast second stage  
instead of only OFF mode. When the menu is entered  
with the keypad lockout feature enabled, the first menu  
feature is enabled, FA ON, the second stage will energize  
immediately.  
item displayed is the combination code 0. The  
or  
13)Select filter replacement run time – The thermostat will  
display "FLTR" after a set time of operation. This is a  
reminder to change or clean your air filter. This time can  
be set from 0 to 1950 hours in 50 hour increments. A  
selection of 0 will cancel this feature. When "FLTR" is  
displayed, you can clear it by pressing HOLD and RUN at  
the same time. This resets the timer and starts counting  
the hours until the next filter change. Contact your system  
manufacturer for a specific replacement/maintenance  
interval.  
keys are used to set the combination unlock number from  
0 to 999. If the unlock number matches exactly with the  
combination lock number stored in memory when the  
SYSTEM button is pressed, the keypad is unlocked and  
the lock icon is removed. If the unlock number does not  
match when the SYSTEM button is pressed, menu is  
exited and the keypad remains disabled.  
To reset the combination code and unlock the keypad if  
the code is forgotten, see troubleshooting section, page  
16.  
14)Select Temperature Display Adjustment 4 LO to 4 HI –  
Allows you to adjust the room temperature display up to  
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REMOTE SENSOR CONFIGURATION MENU  
The configuration menus allow you to set certain remote sensor operating characteristics to your system or personal require-  
ments. Two configuration menus are available, User Configuration and Installer Configuration.  
User Configuration Menu  
Momentarily press  
items press the  
and  
and  
keys at the same time and release to enter the User menu. To scroll through the menu  
keys at the same time. To change the item option press or . To exit the menu  
scroll through all menu items. If no buttons are pushed for 3 minutes, the control will also return to normal operation.  
The User Configuration Menu table summarizes the configuration options. An explanation of each option follows.  
User configuration menu  
Step Press button(s)  
to scroll menu  
Displayed  
Press  
or  
Comments  
(factory default)  
to change option  
on  
1
2
3
4
5
6
7
and  
and  
and  
and  
and  
and  
and  
LOCK  
(OF)  
HLD  
(4h)  
Select keypad lockout OFF or ON  
1 to 8 hrs  
Select temporary adjust temperature  
in 1 hour increments hold time  
1-4 bars (1°-4°) C to Select temperature display adjustment  
CALIB  
(Sensed Temperature) 1-4 bars (1°-4°) H  
dF  
(on)  
dL  
(on)  
oF  
higher or lower  
Select display temperature OFF or ON  
OF  
OF  
Select display backlight OFF or ON  
Select temperature display to F or C  
oC  
(Sensed Temperature)  
_____  
_____  
Exits user menu and returns to normal  
operation  
1) Select keypad lockout OFF or ON – Selecting LOCK  
ON will cause the keypad to be locked in the normal  
change the display temperature to match your previous  
sensor or thermostat.  
operation mode. This prevents the  
being used to adjust temperature. The display will  
indicate "LOCK" when the keypad is locked. If LOCK OF  
is selected, the and keys can still be used.  
When the keypad is locked, the and keys can  
and  
from  
4) Select display temperature OFF or ON – Selecting OF  
allows you to disable displaying the sensed temperature.  
Instead of the temperature, the sensor will display "PWR"  
with the word on to indicate normal operation.  
still be pressed at the same time to enter the configura-  
tion menu.  
5) Select display backlight OFF or ON -. The display  
backlight improves display contrast in low lighting  
conditions. Selecting dL on will keep the light on for a  
short period of time after any key is pressed. Selecting  
OF will keep the light off.  
2) Select temporary adjust temperature hold time –  
Selects the length of time for the temporary temperature  
adjustment. Hold time default is 4 hours and can be set  
from 1 to 8 hours in 1 hour increments.  
o
6) Select temperature display to oF or C - Changes the  
display readout to Celsius or Fahrenheit as required.  
3) Select temperature display adjustment higher or  
lower – allows you to adjust the room temperature  
display 1° to 4° higher or lower. Your sensor was accu-  
rately calibrated at the factory but you have the option to  
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REMOTE SENSOR CONFIGURATION MENU  
Installer Configuration Menu  
Your thermostat is configured at the factory to recognize the remote sensor it is shipped with as indoor sensor A. The Installer  
Configuration Menu is used only when adding or replacing a remote sensor or selecting a frequency offset.  
Press  
and  
buttons for a minimum of five seconds at the same time to enter the Installer menu. To scroll through  
and buttons at the same time. To change the item option, press or  
the menu items, momentarily press the  
. To exit the menu scroll through all menu items. If no buttons are pushed for 3 minutes, the control will return to normal  
operation. The Installer Configuration Menu table summarizes the configuration options. An explanation of each option  
follows.  
Installer Configuration Menu  
Step Press button(s)  
to scroll menu  
Displayed  
Press  
or  
Comments  
(factory default)  
LEARN  
to change options  
on  
1
2
3
4
and  
and  
and  
and  
Select learn mode OFF or ON  
(OF)  
CH  
(A)  
C
(0)  
B, C, O  
Select sensor identification as A, B, C or O  
Select transmitter frequency offset  
1 through 9  
_____  
_____  
Exit installer menu and return to normal  
operation  
1) Select learn mode OFF or ON – Selecting LEARN on  
enables the sensors learning mode. In the learning mode  
the sensor will transmit identification information once  
every 10 seconds for a period of 10 minutes. The LEARN  
icon will be displayed during the learning mode. The  
transmitter icon will be displayed for a short period of time  
with each transmission. See Learn Mode Option.  
3) Select transmitter frequency offset – The sensor’s  
transmitter operates on 418MHz radio frequency by  
default. Interference may occur if another device or  
equipment operates on the same frequency. The interfer-  
ence may degrade the communications between the  
sensor and the thermostat. To avoid interference, you  
may select a different radio frequency for your sensor.  
This menu item allows you to select a radio frequency  
offset from 1 to 9MHz from the base frequency. For  
example; if the you selected an offset of 4, the transmitter  
radio frequency will be 418MHz + 4MHz = 422MHz. Note  
that the sensor’s transmitter and the thermostat’s receiver  
must operate on the same frequency to communicate. To  
change thermostat’s receiver frequency please refer to  
Thermostat Configuration Menu.  
2) Select sensor identification from A to O – For multiple  
sensors systems, each sensor must have a designated  
identification. The thermostat can operate with one indoor  
sensor and one outdoor sensor. For indoor sensors you  
may select A, B or C. For outdoor sensor you must select  
O.  
OPERATING YOUR THERMOSTAT AND REMOTE SENSOR  
Heating System  
Check Thermostat Operation  
1. Press SYSTEM button to select HEAT. If the auxiliary  
heating system has a standing pilot, be sure to light it.  
2. Press  
NOTE  
to adjust thermostat setting to 1° above room  
To prevent static discharge problems, touch side of  
thermostat to release static build-up before touching  
any keys.  
temperature. The heat pump system should begin to  
operate. The display should show "STG1". 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 10).  
If at any time during testing your system does not operate  
properly, contact a qualified service person.  
Fan Operation  
If your system does not have a G terminal connection, skip to  
Heating System.  
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 "STG 1+2".  
1. Turn on power to system.  
2. Move FAN switch to ON position. The blower should  
begin to operate.  
4. Press  
to adjust the thermostat below room tempera-  
ture. The heating system should stop operating.  
3. Move FAN switch to AUTO position. The blower should  
stop immediately.  
CAUTION  
!
Do not allow the compressor to run unless the compres-  
sor oil heaters have been operational for 6 hours and  
the system has not been operational for at least 5  
minutes.  
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OPERATING YOUR THERMOSTAT AND REMOTE SENSOR  
Emergency System  
Automatic System Changeover  
EMER bypasses the Heat Pump to use the heat source wired When the thermostat is in the AUTO mode, the thermostat  
to terminal E/W1 on the thermostat. EMER is typically used  
when compressor operation is not desired, or you prefer  
back-up heat only.  
1. Press SYSTEM button to select EMER. "EMER" will flash  
on the display.  
will call for heat or cool depending on the room temperature.  
The setpoint temperature displayed will be the last mode  
called. If the last system cycle was heat, the HEAT setpoint  
will be displayed. If the room temperature raises above the  
HEAT setpoint and the COOL setpoint and a call for cool is  
required, the temperature displayed will change to be the  
COOL setpoint.  
2. Press  
to adjust thermostat setting above room  
temperature. The Emergency heating system will begin to  
operate. The display will show "STG1" flashing "EMER"  
and "HEAT" to indicate that the Emergency system is  
operating.  
If you manually override the temperature in AUTO and it  
does not switch to the mode (HEAT or COOL) that you want,  
press the  
and  
keys once, at the same time to switch  
3. Press  
to adjust the thermostat below room tempera-  
ture. The Emergency heating system should stop operat-  
ing.  
modes. At the end of your override time it will revert back to  
AUTO.  
Second Stage Time Delay  
CAUTION  
To prevent compressor and/or property damage, if the  
outdoor temperature is below 50°F, DO NOT operate  
the cooling system.  
!
Your thermostat is designed to determine the optimum time  
to activate the second stage. Simply raising the temperature  
in heating or lowering it in cooling will not always force the  
thermostat to bring the second stage on quickly. If the fast  
second stage option in the configuration menu (step 12) is  
set to "OFF", there is a delay from 0-30 minutes depending  
on the performance of the first stage of the system.  
Cooling System  
1. Press SYSTEM button to select COOL.  
2. Press  
to adjust thermostat setting below room  
EXAMPLE: For the last 2 hours the thermostat is set on 70°  
and the room temperature is 70° with the equipment using  
only the first stage of heat. Since the equipment is keeping  
the temperature within 1 degree of setpoint, the thermostat  
will delay second stage for a longer time if you manually  
raise the temperature or if the room temperature quickly  
changes. Once the second stage comes on, it will come on  
sooner the next time there is a difference between the  
setpoint and the room temperature. The net effect of the  
staging program is that when the first stage is capable of  
holding temperature, the second stage will delay longer.  
temperature. The blower should come on immediately on  
high speed, followed by cold air circulation. The display  
should show "STG1". 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 "STG 1+2".  
4. Press  
to adjust the temperature setting above room  
temperature. The cooling system should stop operating.  
When the thermostat calculates that first stage cannot make  
temperature in a reasonable time, the second stage will  
come on sooner. This built in function automatically opti-  
mizes the use of additional stages of heat or cool.  
Remote Temperature Sensor Information  
on the Thermostat Display  
During normal operation, the upper left of the thermostat  
display changes every 6 seconds to show the temperatures  
at the sensors that are turned on in the configuration menu.  
The sensors are the thermostat (LOCAL), the outdoor  
remote sensor (OUTDOOR) and the indoor remote sensor  
(REMOTE). Below that, the display alternately shows the  
time and temperature average of the sensors that are turned  
on.  
The word "SIGNAL" is shown along with number of bars (1-  
3) indicating the relative signal strength. More bars mean  
better reception. The antenna icon also displays for few  
seconds when information from the remote sensor is  
received.  
If the thermostat does not receive an update signal from an  
enabled remote sensor (REMOTE or OUTDOOR) for 30  
minutes or more, the thermostat will display FAULT and  
ANTENNA icons continuously. The REMOTE or OUTDOOR  
sensor that has communication with the thermostat inter-  
rupted will display a temperature of 00. If the active sensor is  
the REMOTE, the thermostat will revert back to LOCAL  
sense only mode.  
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OPERATING YOUR THERMOSTAT AND REMOTE SENSOR  
70°F then:  
Learn Mode Option  
If weight selected is HI , then the averaged temperature is  
Your thermostat is configured at the factory to recognize the  
wireless remote sensor shipped with it. This sensor is stored  
as Sensor A. The Learn Mode Option must be performed on  
the thermostat and wireless remote sensor if:  
(2 x (80°F) + 4 x (70°F))/ 6 = 73.3°F.  
If weight selected is A , then the averaged temperature is  
(2 x (80°F) + 2 x (70°F))/ 4 = 75°F.  
If weight selected is LO , then the averaged temperature is  
(2 x (80°F) + 1 x (70°F))/ 3 = 76.6°F.  
The example above shows that the weight selected would  
prioritize the overall averaged temperature between the two  
sensors. The high weight selection caused the remote  
sensor to carry more weight in the calculated temperature  
average than the local sensor. The low weight selection  
caused the remote sensor to carry less weight in the calcu-  
lated temperature average than the local sensor.  
• A wireless remote sensor is added to another channel.  
• The wireless remote sensor is replaced.  
• The thermostat is replaced.  
During the Learn Mode, the wireless remote sensor will  
transmit identification information every ten seconds for ten  
minutes. In this ten-minute period, the display will show  
“LEARN” and the antenna icon will show for a short time with  
each transmission. The thermostat will be receiving the  
transmitted identification information.  
Choose the Fan Setting (Auto or On)  
Set the FAN Switch to 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 runs the fan continuously for increased air circulation  
or to allow additional air cleaning.  
To perform the Learn Mode on the thermostat and sensor:  
Remove the batteries from all wireless remote sensors in  
the same building except the sensor you are going to put  
into the Learn Mode. This will prevent interference from  
the other sensors.  
Be sure that the remote sensor is set for the proper  
identification (A, B or C for indoor or O for outdoor) and  
the thermostat and remote sensor are set to the same  
frequency.  
Choose the System Setting  
(Heat, Off, Cool, Auto, Emer)  
Press the SYSTEM button to select:  
Heat: Thermostat controls only the heating system.  
Off: Heating and Cooling systems are off.  
On the thermostat, enter the thermostat Configuration  
Menu by pressing the SYSTEM button to OFF and then  
momentarily pressing  
and  
at the same time.  
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.  
Momentarily press SYSTEM button to advance to step 2  
of the Configuration Menu. The display will show “LER”  
and “OFF”.  
Momentarily press  
or  
to select “LER” and “On”.  
The display will flash “LER” with “On” displayed con-  
stantly.  
On the wireless remote sensor, enter the Installer  
Configuration Menu by pressing  
and  
for five  
seconds. The remote sensor display will change to  
“LEARN OF”.  
Emer: Setting is available only when the thermostat is  
configured in HP1 or HP2 mode.  
Momentarily press  
or  
to select “LEARN On”.  
Manual Operation for  
Non-Programmable Thermostats  
Press the SYSTEM button to select Heat or Cool and use  
After the thermostat has successfully identified the  
remote sensor in approximately one minute, the sensor  
information will be stored and the thermostat display will  
change to “LER” and “OK”.  
the  
or  
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.  
If the identification sequence is not successful after ten  
minutes, the thermostat display will show “LER”, “Fault” and  
the antenna icon. If the Learn Mode is unsuccessful, refer to  
Troubleshooting section, Antenna + Fault.  
If you are replacing a thermostat that has more than one  
wireless remote sensor, the Learn Mode must be performed  
for each sensor. Once a sensor has been identified, it will  
remain in the thermostat memory until the Learn Mode is  
performed again and a different sensor for the stored  
channel is identified.  
Manual Operation (Bypassing the Program)  
Programmable Thermostats  
Press  
or  
and adjust the temperature wherever you like.  
Then press HOLD. 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 to cancel  
HOLD and resume the programmed schedule.  
Wireless Remote Indoor  
Temperature Averaging  
Your thermostat is designed to sense the temperature of the  
indoor remote sensor and average or weight it with the local  
sensor in the thermostat for each program period. The  
averaging will only be active when both the local and the  
indoor remote sensors are functional and turned on in the  
configuration menu. When the thermostat is placed in view  
schedule mode (press PRGM once), the weight of the indoor  
remote sensor will be shown on the left side of the display  
when HOLD button is pressed. The weighting classes of the  
indoor remote sensor are designated as A (default for  
average weight), HI (high weight), or LO (low weight). The HI  
weight is two times the weight of the average weight. The A  
weight is two times the weight of the LO weight. The weight  
of the local sensor is fixed to A (average weight). The actual  
temperature displayed, in the clock digits, in the normal  
operation mode is the mathematical weighted sum of the  
enabled functioning sensors. For example, if the local sensed  
temperature is 80°F and the remote sensed temperature is  
Program Override (Temporary Override)  
Press  
or  
buttons to adjust the temperature. This will  
override the temperature setting for a (default) four hour  
override period. The override period can be shortened or  
lengthened by adjusting the temporary hold time in the  
configuration menu.  
Example: If you turn up the heat during the morning pro-  
gram, it will be automatically lowered later, when the tempo-  
rary hold period ends. To cancel the temporary setting at any  
time and return to the program, press RUN.  
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  
and  
buttons simulta-  
neously to change to the other mode.  
11  
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OPERATING YOUR THERMOSTAT AND REMOTE SENSOR  
Remote Sensor Operation  
The sensor monitors the temperature and sends information  
to the thermostat. Updated information is sent to the thermo-  
stat when the temperature changes 3/16 degree or more  
from the last update.  
PROGRAMMINGYOURTHERMOSTAT  
This section will help you plan your thermostat's program to  
meet your needs. For maximum comfort and efficiency, keep  
the following guidelines in mind when planning your program.  
• When heating (cooling) your building, program the temper-  
atures to be cooler (warmer) when the building is vacant or  
during periods of low activity.  
Low Battery power: The sensor will display the word LO  
along with BATT icon to indicate a low battery power  
condition. The 2 "AAA" batteries must be replaced to ensure  
a proper sensor performance. For optimum performance,  
replace batteries once a year with new premium brand  
alkaline batteries such as Duracell® or Energizer®.  
• During early morning hours, the need for cooling is usually  
minimal.  
Planning Your Program  
Look at the factory preprogrammed times and temperatures  
shown in the sample schedule. If this program will suit your  
needs, simply set the time and day and press the RUN  
button to begin running the factory preset program.  
Increasing the sensor setpoint decreases the displayed  
remote temperature shown on the thermostat by 1°F per bar.  
This will lower the actual calculated room temperature by up  
to 4°F. Decreasing the sensor setpoint increases the  
displayed remote temperature and will raise the actual  
calculated room temperature. The table below shows how  
the adjustment on the sensor affects the displayed remote  
temperature on the thermostat and the calculated average  
temperature.  
If you want to change the preprogrammed times and tem-  
peratures, follow these steps.  
Determine the time periods and temperatures for your  
program. You must program four periods for each day.  
However, you may use the same heating and cooling  
temperatures for consecutive time periods. You can choose  
start times, heating temperatures, and cooling temperatures  
independently (for example, you may select 5:00 AM and 70°  
as the weekday 1st period heating start time and tempera-  
ture and also choose 7:00 AM and 76° as the weekday 1st  
period cooling start time and temperature).  
Use the table to plan your program time periods and the  
temperatures you want during each period. Fill in the  
complete table to have a record of your programs.  
Description  
Remote Sensor Thermostat Display (Remote) Thermostat Display (Local) Calculated Room Temp.  
Setpoint Temp.  
Increasing setting decreases room  
H +4 bars  
Decreases by 4°F to 71°F  
Decreases by 3°F to 72°F  
Decreases by 2°F to 73°F  
Decreases by 1°F to 74°F  
70.5°F  
71°F  
temperature average causing system H +3 bars  
to increase temperature.  
H +2 bars  
H +1 bar  
71.5°F  
72°F  
Remote 75°F  
C -1 bar  
75°F  
74.5°  
73°F  
75°F  
Decreasing setting increases room  
temperature causing more of a  
demand for Cooling.  
Increases by 1°F to 76°F  
Increases by 2°F to 77°F  
Increases by 3°F to 78°F  
Increases by 4°F to 79°F  
C -2 bars  
C -3 bars  
C -4 bars  
73.5°F  
74°F  
74.5°F  
FACTORYPROGRAM  
SATURDAY (1 DAY)  
PERIOD  
WEEKDAYS (5 DAYS)  
START  
TIME  
SUNDAY (1 DAY)  
START REMOTE  
REMOTE  
TEMP WEIGHT  
START  
TIME  
REMOTE  
TEMP WEIGHT  
TIME  
TEMP WEIGHT  
MORN  
DAY  
EVE  
NITE  
MORN  
DAY  
6:00 AM  
8:00 AM  
5:00 PM  
70 F  
62 F  
70 F  
A
A
A
A
A
A
A
A
6:00 AM  
8:00 AM  
5:00 PM  
70 F  
62 F  
70 F  
A
A
A
A
A
A
A
A
6:00 AM  
8:00 AM  
5:00 PM  
70 F  
62 F  
70 F  
A
A
A
A
A
A
A
A
10:00 PM 62 F  
10:00 PM 62 F  
10:00 PM 62 F  
6:00 AM  
8:00 AM  
5:00 PM  
78 F  
85 F  
78 F  
6:00 AM  
8:00 AM  
5:00 PM  
78 F  
85 F  
78 F  
6:00 AM  
8:00 AM  
5:00 PM  
78 F  
85 F  
78 F  
EVE  
NITE  
10:00 PM 82 F  
10:00 PM 82 F  
10:00 PM 82 F  
PERSONAL PROGRAM  
SATURDAY (1 DAY)  
PERIOD  
WEEKDAYS (5 DAYS)  
START  
TIME  
SUNDAY (1 DAY)  
START  
REMOTE  
START  
TIME  
REMOTE  
REMOTE  
TEMP WEIGHT  
TEMP WEIGHT  
TIME  
TEMP WEIGHT  
MORN  
DAY  
EVE  
NITE  
MORN  
DAY  
EVE  
NITE  
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PROGRAMMING  
6. Press PRGM once. The currently programmed start time  
and setpoint temperature for the 2nd heating program  
period will appear.  
7. Repeat steps 3 and 5 to select the start time and heating  
temperature for the 2nd heating program period.  
8. Repeat steps 3 through 6 for the 3rd and 4th heating  
program periods.  
9. Press PRGM once "SA" (indicating Saturday program)  
will appear in the display, along with the start time for the  
1st heating period and the currently programmed temp-  
erature.  
10.Repeat steps 3 through 8 to complete Saturday heating  
programming.  
Setting the Clock and Day  
Set Current Time and Day  
1. Press TIME button once. The display will show the hour  
only.  
EXAMPLE:  
2. Press and hold either  
or  
until you reach the  
correct hour and AM/PM designation (AM begins at mid-  
night; PM begins at noon). A will indicate for AM. P will  
indicate for PM in the minutes digits.  
3. Press TIME once again. The display window will show  
the minutes only.  
11.Press PRGM once to change to "SU" (Sunday) heating  
programming and repeat steps 3 through 7 to complete  
Sunday programming.  
12.When you have completed entering your heating pro-  
gram, press RUN.  
EXAMPLE:  
Enter Cooling Program  
4. Press and hold either  
correct minutes.  
5. Press TIME once again. The display will show the day of  
the week.  
or  
until you reach the  
CAUTION  
!
If the outside temperature is below 50°F, disconnect  
power to the cooling system before programming.  
Energizing the air conditioner compressor during  
cold weather may cause personal injury or property  
damage.  
6. Press  
week.  
or  
until you reach the current day of the  
7. Press RUN once. The display will show the correct time  
and room temperature alternately.  
1. Press SYSTEM button to COOL.  
2. Follow Enter Heating Program for entering your cooling  
program, using your selected cooling times and tempera-  
tures.  
This thermostat starts the programmed temperature earlier  
than the time selected in your program. This allows the  
system to reach your setting by the time you specify in your  
program. This feature is called EMR (Energy Management  
Recovery). If you do not want the thermostat to start early,  
you may cancel the EMR feature in the Configuration Menu.  
CHECKYOURPROGRAMMING  
Follow these steps to check your thermostat programming  
one final time before beginning thermostat operation.  
1. Press SYSTEM button to HEAT position.  
2. Press PRGM to view the 1st weekday heating period  
time and temperature. Each time you press PRGM, the  
next heating period time and temperature will be display-  
ed in sequence for weekday, then Saturday and Sunday  
program periods (you may change any time or tempera-  
ture during this procedure.  
Enter Heating Program  
1. Press the SYSTEM button to HEAT.  
2. Press PRGM once. "MO TU WE TH FR" (indicating  
weekday program) will appear in the display. Also dis-  
played are the currently programmed start time for the  
1st heating period and the currently programmed temp-  
erature (flashing).  
3. Press RUN.  
EXAMPLE:  
4. Press SYSTEM button to COOL position.  
5. Repeat step 2 to check cooling program.  
6. Press SYSTEM button to HEAT or COOL and press  
RUN to begin program operation.  
NOTE: Batteries are not required to keep your programming  
or menu data. With two optional "AA" batteries installed,  
your thermostat will maintain time and continuously  
display the temperature during a loss of AC power.  
Installed batteries will also allow programming prior to  
installation.  
This display window shows that for the 1st weekday  
period, the start time is 6:00 AM and 68° is the program-  
med temperature (this example reflects factory prepro-  
gramming.  
3. Press  
or  
to change the displayed temperature  
to your selected temperature for the 1st heating program  
period.  
4. Press TIME once (the programmed time will flash). Press  
YOUR THERMOSTAT IS NOW PROGRAMMED AND READY TO  
PROVIDE MAXIMUM COMFORT AND EFFICIENCY!  
or  
until your selected time appears. The time  
will change in 15 minute increments. When your selected  
time is displayed, press TIME again to return to the  
change temperature mode.  
5. If both the local and the remote sensors are enabled, then  
you may press HOLD button to change the remote sensor  
weighting setting. Remote icon will display. The pro-  
grammed weight (A, HI or LO) will flash. Press  
or  
to change the displayed weight to your selected weight  
for the 1st heat program period.  
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TROUBLESHOOTING  
Reset Operation  
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 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.  
Pressing  
and  
and the SYSTEM keys at the same time will reset the thermostat to its factory default setting. This will  
also clear any limited temperature ranges or keypad lockout settings. Note default system configuration is multistage system  
operation.  
Possible Cause  
Corrective Action  
Symptom  
1. Blown fuse or tripped circuit breaker.  
2. Furnace power switch to OFF.  
Replace fuse or reset breaker.  
Turn switch to ON.  
No Heat/No Cool/No Fan  
(common problems)  
3. Furnace blower compartment door or  
panel loose or not properly installed.  
Replace door panel in proper position to engage  
safety interlock or door switch.  
1. Pilot light not lit.  
Re-light pilot.  
No Heat  
2. SYSTEM Switch not set to HEAT.  
Set SYSTEM Switch to HEAT and raise setpoint  
above room temperature.  
3. Loose connection to thermostat or  
system.  
Verify thermostat and system wires are securely  
attached.  
4. 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 service person for assistance.  
5. 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 service  
person to verify the heating is operating correctly.  
1. SYSTEM Switch not set to COOL.  
Set SYSTEM Switch to COOL and lower setpoint  
below room temperature.  
No Cool  
2. Loose connection to thermostat or  
system.  
Verify thermostat and system wires are securely  
attached.  
3. Cooling system requires service or  
thermostat requires replacement.  
Same procedure 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.  
1. Program or current time(s) set  
incorrectly (AM, PM or Day of the  
week).  
2. Energy Management Recovery  
(EMR) starting the program early.  
Verify that the AM or PM settings are correct for  
each program period and the current time of day.  
Also verify the Day of the week is set correctly.  
The EMR (Energy Management Recovery) feature  
starts early to achieve the temperature it is pro-  
grammed for by the time specified in the program.  
See the Configuration Menu section to disable  
EMR if you do not want the thermostat to start early.  
Thermostat does not  
Follow Program  
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TROUBLESHOOTING  
Possible Cause  
                                                                                                                             
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Symptom  
In power stealing mode (RC/PS Switch  
set to PS), the thermostat draws a small transformer to the "C" terminal on the thermostat  
1. Add a common connection from the system  
Furnace Inducer Fan,  
Blower or Heat Turns On  
with No Call for Heat or  
does not Turn Off when  
Call for Heat Ends  
amount of power through the heating  
circuit to operate. Some furnace  
systems using high impedance input  
electronic modules may react to the  
current draw and actuate system  
components.  
and set the RC/PS switch to RC.  
2. If the system has a standard cooling contactor  
and no common connection is available at the  
thermostat, clip jumper W25-W1 and separate the  
ends. This prevents the thermostat from drawing  
power from the W1 (heating) circuit. If the condition  
persists after clipping the jumper, a heating and  
cooling service person can install an isolation relay  
to the system or add a common wire as mentioned  
above.  
1. Loss of power from heating/cooling  
system to thermostat.  
1. Verify the thermostat is operating on AC power by  
removing the thermostat batteries. If display goes  
blank, AC power is lost.  
Antenna + Fault  
2. Remote sensor too far from  
thermostat.  
2. Change remote sensor location.  
3. Thermostat or remote sensor set to  
different channels or a different  
frequency offset.  
3. Verify the thermostat and remote sensor are set  
to the same channel and frequency offset.  
4. Incorrect sensor identification  
selected.  
4. For indoor sensor, verify sensor identification  
selected is A, B or C. For an outdoor sensor, verify  
the sensor identification selected is O.  
5. Replacement Sensor requires  
running learn mode.  
5. If the sensor did not come with this thermostat  
from the factory, perform the learn procedure for  
thermostat and sensor.  
6. Remote sensor requires replacement. 6. If the sensor display indicate E0 or E1, replace  
the remote sensor.  
1. Improper system sizing or improper  
heating and cooling distribution  
between areas.  
2. An uneven change in occupancy  
level, sun load or conditioned space  
activities (cooking, washing dishes,  
showers, etc.) between the areas.  
Selecting a high or low priority for the thermostat or  
sensor location during program periods can help  
even out minor temperature imbalances between  
the thermostat and remote sensor locations. This is  
also useful for scheduled or predictable events like  
occupancy level or sun load during particular times  
of the day. If the temperature difference remains  
large after assigning priorities, system modification  
or zoning may be necessary to balance the tem-  
perature distribution.  
Temperature Difference  
between Thermostat  
and Remote Location  
1. Possible short in wiring.  
2. Possible short in thermostat.  
3. Possible short in heat/cool/fan  
system.  
Check each wire connection to verify they are not  
shorted or touching together. No bare wire should  
stick out from under terminal screws. Try resetting  
the thermostat as described 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.  
Heat, Cool or Fan  
Runs Constantly  
4. FAN Switch set to Fan ON.  
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TROUBLESHOOTING  
Possible Cause  
Corrective Action  
Symptom  
1. The location of the thermostat and/or  
the size of the Heating System may  
be influencing the cycle rate.  
Digital thermostats normally provide precise  
temperature control and may cycle faster than some  
older mechanical models. A faster cycle rate means  
the unit turns on and off more frequently but runs for  
a shorter time so there is no increase in energy use.  
If you would like to increase the cycle time, choose  
SL for slow cycle in the menu, step 4. If an accept-  
able cycle rate is not achieved as received or by  
choosing slow cycle, contact a local service person  
for additional suggestions.  
Furnace  
(Air Conditioner)  
Cycles Too Fast  
or Too Slow (narrow or  
wide temperature swing)  
1. Thermostat thermometer setting  
requires adjustment.  
The thermometer can be adjusted +/- 3 degrees.  
See Temperature Display Adjustment in the  
Configuration Menu section.  
Thermostat Setting &  
Thermostat Thermometer  
Disagree  
1. Voltage spike or static discharge.  
Use the Reset Operation at top of previous page.  
Blank Display and/or  
Keypad Not Responding  
1. The desired setpoint conflicts with the Change system mode to COOL. Raise the Cool  
Heat Setpoint will  
not Respond to the  
Temperature Up Key  
setpoint of the COOL mode.  
setpoint. Return to HEAT mode and set desired  
temperature.  
1. The desired setpoint conflicts with the Change system mode to HEAT. Lower the Heat  
Cool Setpoint will  
setpoint of the HEAT mode.  
setpoint. Return to COOL mode and set desired  
temperature.  
not Respond to the  
Temperature Down Key  
With the thermostat in any mode, press  
at the same time to enter the configuration menu at  
the point where the lockout code is to be entered.  
and  
Forgot Keypad  
Lockout Code  
Press  
and  
and SYSTEM button at the same  
time to reset the lockout code, unlock the keypad.  
Your thermostat is designed to determine the  
optimum time to activate the second stage. Simply  
raising the temperature in heating or lowering it in  
cooling will not always force the thermostat to bring  
the second stage on quickly. There is a time delay  
from 0-30 minutes depending on the performance of  
the first stage of the system.  
Why won't my 2nd or  
3rd stage come on?  
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, MO  
www.white-rodgers.com