White Rodgers 1F85ST 0422 Thermostat User Manual

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Blue Selecto Thermostat with  
Automatic Heat/Cool Changeover Option  
Single Stage, Multi-Stage or Heat Pump  
Installation and Operating Instructions for Model:  
Save these instructions for future use!  
Model  
Programming Choices  
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS  
CAREFULLY BEFORE INSTALLING OR OPERATING  
THIS CONTROL COULD CAUSE PERSONAL INJURY  
AND/OR PROPERTY DAMAGE.  
5/1/1 Day 5/2 Day Non-Programmable  
1F85ST-0422  
APPLICATIONS  
THERMOSTAT APPLICATION GUIDE  
1F85ST-0422 Thermostat  
with Spanish Display  
Description  
Heat Pump (No Aux. or Emergency Heat)  
Heat Pump (with Aux. or Emergency Heat)  
Systems with up to 2 Stages Heat, 2 Stages Cool  
Heat Only Systems (with optional fan switch)  
Millivolt Heat Only Systems – Floor or Wall Furnaces  
Cool Only Systems  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Gas or Oil Heat  
Electric Furnace  
Hydronic (Hot Water) Zone Heat – 2 Wires  
Hydronic (Hot Water) Zone Heat – 3 Wires  
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........................................................... 1.5 A per terminal, 2.5A maximum all terminals combined  
Setpoint Range......................................................... 45° to 90°F (7° to 32°C)  
Differential (Single Stage)......................................... Heat 0.6°F; Cool 1.2°F (adjustable)  
Differential (Heat Pump) ........................................... Heat 1.2°F; Cool 1.2°F (adjustable)  
Operating Ambient.................................................... 32° 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............................................ 3.4”H x 4.4”W x 1.3”D  
ATTENTION: MERCURY NOTICE  
This product does not contain mercury. However, this  
product may replace a product that contains mercury.  
CAUTION  
!
To prevent electrical shock and/or equipment damage,  
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  
Page  
Installation  
2
2
3
4
6
6
8
Wiring Connections  
Thermostat Quick Reference  
Installer Configuration Menu  
Operating Your Thermostat  
Programming  
Troubleshooting  
PART NO. 37-6954B  
Replaces 37-6954A  
0905  
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INSTALLATION  
!
Figure 1 – Battery door shown open  
WARNING  
Thermostat installation and all components of the  
control system shall conform to Class II circuits per  
the NEC code.  
“AA” Alkaline Batteries  
Remove Old Thermostat  
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.  
Thermostat can be powered by system AC power or Battery.  
is displayed, the thermostat is battery powered. If  
If  
is not displayed, thermostat is system powered with optional  
battery back-up. When battery power remaining is approxi-  
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.  
mately half, the  
will be displayed. When “Change  
is displayed, install fresh “AA” alkaline batteries immediately.  
For best results, replace all batteries with new premium brand  
alkaline batteries such as Duracell® or Energizer®. We recom-  
mend replacing batteries every 2 years. If the home is going  
to be unoccupied for an extended period (over 3 months) and  
is displayed, the batteries should be replaced before  
Installing New Thermostat  
leaving. When less than two months of battery life remain, the  
setpoint temperature will offset by 10 degrees (10 degrees  
cooler in Heat mode / 10 degrees warmer in Cool mode). If  
offset occurs, the normal setpoint can be manually reset with  
1) Pull the thermostat body off the thermostat base. Forcing  
or prying on the thermostat will cause damage to the unit.  
2) Place base over hole in wall and mark mounting hole  
locations on wall using base as a template.  
or . Another offset will occur within two days if batter-  
ies are not replaced.  
3) Move base out of the way. Drill mounting holes. If you  
are using existing mounting holes and the holes drilled  
are too large and do not allow you to tighten base snug-  
ly, use plastic screw anchors to secure the base.  
4) Fasten base snugly to wall using mounting holes shown  
in Figure 2 and two mounting screws. Leveling is for  
appearance only and will not affect thermostat operation.  
5) Connect wires to terminal block on base.  
Figure 2 – Thermostat base and rear view of thermostat  
Mounting  
Hole  
Mounting  
Hole  
6) Push excess wire into wall and plug hole with a fire re-  
sistant material (such as fiberglass insulation) to prevent  
drafts from affecting thermostat operation.  
Place Level  
Place Level  
across  
Mounting Tabs  
(for appearance only)  
across  
Mounting Tabs  
(for appearance only)  
7) Carefully line the thermostat up with the base and snap  
into place.  
Batteries  
2 “AA” alkaline batteries are included with the thermostat.  
To install the batteries, pull the battery door as shown by the  
arrow and lift open. Using the polarity indicated inside the bat-  
tery door, insert the batteries. To close the battery door, swing  
the door down while pulling in the direction of arrow. Once  
fully down, snap the door back into position. To replace the  
batteries, set system to OFF.  
WIRING CONNECTIONS  
Refer to equipment manufacturers’ instructions for specific Refer to 37-6895 for 1F83-0422/1F85-0422 wiring diagram  
system wiring information. After wiring, see CONFIGURATION specifications.  
section for proper thermostat configuration.  
TERMINAL DESIGNATION DESCRIPTIONS  
Terminal  
Designation  
Terminal  
Designation Description  
Description  
L...............Heat pump malfunction indicator for systems  
with malfunction connection  
O..............Changeover valve for heat pump energized  
constantly in cooling  
B ..............Changeover valve for heat pump energized  
constantly in heating  
Y ..............Compressor Relay  
W/E............Heat Relay/Emergency Heat Relay (Stage 1)  
W2.............2nd Stage Heat (3rd Stage Heat in HP 2)  
G..............Fan Relay  
RH.............Power for Heating  
RC.............Power for Cooling  
C ..............Common wire from secondary side of cooling system  
transformer or heat only system transformer  
6...............3 Wire Zone Valve – Energized when no call for Heat  
Y2 .............2nd Stage Compressor  
2
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THERMOSTAT QUICK REFERENCE  
Home Screen Description  
Figure 3 – Home Screen Display  
Room  
Temperature  
Setting  
Temperature  
Displays the power level of  
the 2 “AA” batteries:  
indicates good power level  
indicates batteries at about  
half power. “Cambiar ”  
(Change ) indicates batteries  
are low and should be replaced with  
2 new premium brand “AA” Alkaline  
batteries. (See page 2 for more details)  
SISTEMA  
Button  
VENT  
Indicator  
Figure 4 – Programming & Configuration Items  
2
4
12  
8
3
10  
11  
1
9
7
5
6
Programming and Configuration Items  
7
Displays “Arrancar Programa” (Run Schedule),  
“Programa” (Schedule), or “Menu”.  
“Sistema On” indicates when heating or cooling stage  
is energized. “Sistema On +2” indicates when a second  
stage is energized.  
1
Displays “Guardar” (Save) when Cool SavingsTM is  
8
working.  
The word Retener (Hold) is displayed when the  
thermostat is in the Retener (Hold) mode. Temporal  
Retener (Temp Hold) is displayed when the thermostat  
is in a Retener Temporal (Temp Hold) mode.  
2
Displays “Bomba de Calor” (Heat Pump) when system  
9
is configured as Heat Pump thermostat.  
Displays “Retener” (Hold) in programmable mode when  
not in “Retener” (Hold) mode. Displays Light Bulb in  
non-programmable mode.  
10  
Displays Cambiar Filtro (Change Filter) when the  
system has run for the programmed filter time period as  
a reminder to change or clean your filter.  
3
4
Initially displays “Auto Prog”. If Auto Schedule had  
been used or disabled, then it displays “Cool Savings”  
when in the Frio (Cool) Mode if Cool Savings has been  
enabled in the menu.  
11  
12  
Displays “Adjuste” (Set) for setpoint when in Run  
Program mode.  
Displays System Mode Calor (Heat), Aux (Emer),  
Auto, Frio (Cool), Off or Time in menu mode.  
5
6
“Llamar Servicio” (Call For Service) indicates a fault in  
the heating/cooling system, it does not indicate a fault in  
the thermostat.  
Displays Fan Mode (On, Auto) or “Arrancar” in Menu  
mode.  
3
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INSTALLER/CONFIGURATION MENU  
With thermostat in Heat, Cool or Auto, in normal operation, press the Menu button for at least 5 seconds. The display will  
to change an item option.  
show item #1 in the table below. Press Menu to advance to the next menu item. Press  
Shaded items are not available to 1F86.  
or  
INSTALLER/CONFIGURATION MENU  
MENU  
REF.  
DISPLAYED  
(FACTORY DEFAULT)  
PRESS  
HP SS BUTTON  
Press  
or  
to  
select from listed options  
COMMENTS  
1
1
1
MENU  
(EM2)  
bC1, ES1  
Selects Multi-Stage (EM2 No Heat Pump),  
Heat Pump 1 (bC 1, 1 compressor),  
or Single Stage (ES1)  
2
3
4
2
2
3
4
MENU (GAS) for ES1 or EM2  
(ELE) for bC  
ELE  
1, 2, 3, 4, 5, 6  
OFF  
GAS setting: furnace controls the blower  
ELE setting: thermostat controls the blower  
3
4
5
6
MENU  
MENU  
MENU  
CE (0)  
(Disabled)  
E (On)  
Selects Cool Savings  
Value 1 (low) to 6 (high), Value 0 Disables Feature  
Selects Energy Management Recovery (EMR)  
On or OFF.  
5
6
7
5
6
CR Calor (ME)  
AL, bA  
AL, bA  
Adjustable Anticipation:  
Selects heating cycle rate for MS or SS  
Adjustable Anticipation (Heat Pump) (only  
when heat pump selected in #1)  
MENU CR Bomba de Calor  
(ME)  
MENU  
CR Frio (ME)  
or  
CR Aux (FA)  
AL, bA  
AL  
Adjustable Anticipation:  
Selects the cycle rate for cooling  
(only when Em 2 or ES 1 is selected in item 1.)  
or Selects the cycle rate for Emergency  
mode and Auxiliary stage if Heat Pump  
is selected in item 1.  
8
9
7
8
7
8
MENU  
MENU  
Cd (OFF)  
Frio Off  
Cd On  
Compressor Lockout Time  
Calor Frio Off,  
System Mode Configuration  
with Automatic Changeover capability  
Calor Off with Vent icon,  
Calor Off without Vent  
icon Frio Off, Auto Off  
Calor Auto  
10  
9
9
MENU  
L (On)  
0
(current temperature) 1 bC, 2 bC, 3 bC, 4 bC  
L OFF  
Selects Display Light On or OFF  
11 10 10 MENU  
1 AL, 2 AL, 3 AL, 4 AL,  
Adjustable Ambient Temperature Display  
12 11 11 MENU  
Selects Fahrenheit/Celsius Temperature Display  
°F  
°C  
13 12 12 MENU  
L Calor  
(90)  
L 62 to L 89  
Selects Limited Calor (HEAT) Range  
14 13 13 MENU  
L Frio  
(45)  
L 46 to L 82  
Selects Limited Frio (COOL) Range  
15 14 14 MENU  
P3  
P0, P2  
Defaults for 5-1-1 programming (P3) but non-  
programmable (PO) or 5-2 programming (P2)  
is available on most models.  
16 15 15 MENU  
17 16 16 MENU  
Calor AP (On)  
Frio AP (On)  
Calor AL (On)  
OFF  
OFF  
OFF  
Automatic Schedule for heat mode.  
NA to Cool only system.  
Automatic Schedule for cool mode.  
NA to Heat only system.  
18 17  
19 18  
MENU  
MENU  
Fast Heat option may be disabled by  
selecting OFF. NA to ES config.  
NA to Cool only system.  
Frio AL (On)  
Hv (On)  
OFF  
OFF  
Fast Cool option may be disabled by ES or bC  
selecting OFF. NA to ES config.  
NA to Heat only system.  
20 19 17 MENU  
Selects Automatic daylight Savings Time  
option On or OFF.  
21 20 18 MENU Cambiar Filtro (OFF)  
MENU Cambiar Filtro (200 h)  
On  
Selects Filter Change-out Indicator On or OFF.  
Change Filter time in 25 hour increments. This  
menu only appears if On is selected in above.  
25-1975 h  
22 21 19 MENU  
Arrancar  
Frio On (o)  
Calor On (b)  
Selects operation of the reversing valve terminal  
(O/B) output as an O or B terminal.  
22 20  
Returns to Normal Operation  
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INSTALLER/CONFIGURATION MENU  
1) This control can be configured for:  
EM2 – Multi-Stage System (no heat pump)  
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 oc-  
curs, it will flash the setpoint for up to five minutes.  
9) System Mode Configuration – This thermostat is con-  
figured for Calor (Heat) and Frio (Cool) (SISTEMA switch  
with Frio Off Heat) default. It can also be configured  
for Calor (Heat) and Frio (Cool) with Auto changeover  
(Calor, Auto, Frio, Off), Heat only with fan (Off Calor),  
Calor only without fan, Auto only (Auto Off), and Frio only  
(Frio Off).  
10) Select Backlight Display – The display backlight im-  
proves display contrast in low lighting conditions. When  
the “C” terminal is powered, selecting backlight dL ON  
will keep the light on continuously. Select backlight OFF  
will turn 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 whether  
the backlight is selected ON or OFF.  
11) Select Temperature Display Adjustment 4 bA to 4 AL  
(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 display temperature to match your previous  
thermostat. The current or adjusted room temperature  
will be displayed.  
12) Select F° or C° Readout – Changes the display readout  
to Celsius or Fahrenheit as required.  
13) Limited Calor (Heat) Range – This feature provides a  
maximum setpoint temperature for heat. The default set-  
ting is 90°F. It can be changed between 62°F and 89°F  
bC1 – Heat Pump with one stage of compressor  
ES1 – Single Stage System  
2) GAS or Electric (ELE) fan operation. If the heating sys-  
tem requires the thermostat to energize the fan, select  
ELE. Select GAS if the heating system energizes the fan  
on a call for heat.  
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 0 which disables this feature. 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 temperature  
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 thermostat displays but the reduction in humidity will  
allow comfort at the slightly higher temperature.  
To turn this feature on in the Cool mode press Cool  
Savings. The display will show “Guardar” (Save) next to  
the setpoint temperature. When Cool Savings is making  
adjustments to the room temperature display “Guardar”  
(Save) will be flashing and the displayed room tempera-  
ture may vary within the adjustment range you selected.  
If “Guardar” (Save) is not displayed and this feature is  
OFF, no change will occur when the cooling system is  
continuously running during periods of high demand.  
4) Energy Management Recovery: (this step is skipped if  
configured to be non-programmable). Energy Manage-  
ment Recovery (E) On enables the thermostat to start  
heating or cooling early to make the building temperature  
reach the program setpoint at the time you specify. Heat-  
ing will start 5 minutes early for every 1° of temperature  
required to reach setpoint.  
by pressing the  
or  
key.  
14) Limited Frio (Cool) Range – This feature provide a  
minimum setpoint temperature for cool. The default set-  
ting is 45°F. It can be changed between 46°F and 82°F  
by pressing the  
or  
key.  
15) Program Options: Configured for 5/1/1 day or 5/2 day  
programming or non-programming mode. The default  
setting is P3, indicating 5/1/1 day programming. The pro-  
grams per week can be toggled to P2 or P0 by pressing  
the  
or  
keys. A selection of 0 Days for non-pro-  
grammable will eliminate the need for EMR, and that step  
in the menu will be skipped.  
16 & 17) Select Automatic Schedule – With just one touch  
of the Auto Prog key this feature allows you to program  
a desired comfort temperature into all the program  
periods along with a 6° set back for night periods of both  
Heat and Cool programs. Factory default is “On” for both.  
When Heat AP On and Cool AP On are activated while  
in Heat or Cool mode, select desired setpoint tempera-  
ture and press Auto Prog. This value will be copied into  
all the morning, day and evening program periods. The  
night program periods will have a 6°F set back.  
Example: E On is selected and your heating is pro-  
grammed to 65° at night and 70° at 7 AM. If the build-  
ing temperature is 65°, the difference between 65° and  
70° is 5°. Allowing 5 minutes per degree, the thermostat  
setpoint will change to 70° at 6:35 AM. Cooling allows  
more time per degree, because it takes longer to reach  
set temperature.  
5, 6 & 7) Cycle Rate Selection – The factory default setting  
for Heat and Cool modes, ES1, EM2, is medium cycle  
(ME). For Heat Pump and bC1, the default setting is  
medium (ME). For Emer (Aux) the default setting is fast  
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 (AL Calor On), if the Heat setpoint  
temperature is manually raised by 3°F (2°C) or more  
cycle (bA). To change cycle rate, press the  
key.  
Cycle rate differentials for different settings are:  
or  
above the actual temperature using  
the second  
stage will energize immediately. With AL 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 (AL Frio) provides the  
same controls when the setpoint temperature is lowered.  
20) 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  
Fast  
bA  
0.4°F 0.6°F  
0.9°F 1.2°F  
Medium Slow  
ME AL  
MODE  
Calor (ES1, EM2)  
Frio (ES1, EM2)  
1.7°F  
1.7°F  
1.7°F  
1.7°F  
Bomba de Calor (bC1) 0.9°F 1.2°F  
Aux (bC1) 0.6°F  
-
8) Select Compressor Lockout Cd OFF or ON – Select-  
ing Cd ON will cause the thermostat to wait 5 minutes  
between cooling cycles. This is intended to help protect  
the compressor from short cycling. Some newer com-  
pressors already have a time delay built in and do not  
On. Use  
OFF.  
or  
touch keys to select the feature  
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INSTALLER/CONFIGURATION MENU  
21) Select Filter Replacement Reminder and Set Run  
Time – Select the “Cambiar Filtro” (Change Filter)  
reminder On or OFF. If selected 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 “Cambiar  
Filtro” (Change Filter) as a reminder to change or clean  
your air filter. When “Cambiar Filtro” (Change Filter) is  
displayed, press MENU or ARRANCAR button to clear  
the display and restart the time to the next filter change.  
22) 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  
thermostat 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.  
OPERATINGYOUR THERMOSTAT  
IMPORTANT!  
Choose the Vent Setting (Auto or On)  
Manual Operation for Non-Programmable  
Mode  
Vent Auto is the most commonly selected setting and runs the Press the SISTEMA button to select Heat or Cool and use  
Set the VENT Switch to Auto or On.  
fan only when the heating or cooling system is on.  
Vent On runs the fan continuously for increased air circulation  
or to allow additional air cleaning.  
the  
or  
buttons to adjust the temperature to your  
desired setting. After selecting your desired settings you can  
also press the SISTEMA button to select AUTO to allow the  
thermostat to automatically change between Heat and Cool.  
Choose the System (Sistema) Setting  
(Calor, Off, Frio, Auto, Aux)  
Press the SYSTEM button to select:  
Manual Operation (Bypassing the Program)  
Programmable Thermostats  
Press  
or  
and then the RETENER button and  
Calor: Thermostat controls only the heating system.  
Off: Heating and Cooling systems are off.  
adjust the temperature wherever you like. 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 Arrancar to cancel HOLD and resume the  
programmed schedule.  
Frio: 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.  
Program Override (Temporary Override)  
buttons to adjust the temperature. This  
Press  
or  
Aux: (Heat Pump models) Thermostat controls only backup  
heating system.  
will override the temperature setting for two hours minimum  
or until the next programmed time. To cancel the temporary  
setting at any time and return to the program, press  
Arrancar. If the SISTEMA 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  
simultaneously to change to the other mode.  
and  
buttons  
PROGRAMMING (For Programmable Model Only)  
Set Current Time and Date  
1) Press Menu and then Hora button once. The display  
Enter the Heating Program  
1) Press SISTEMA button to select “Calor” in the system  
switch area indicating the active mode being pro-  
grammed.  
will show the hour only.  
2) Press and hold either the  
or  
key until you reach  
the correct hour and AM/PM designation (AM begins at  
midnight, PM begins at noon).  
2) Press the Menu button and then press Programa.  
3) The top of the display will show the day(s) being pro-  
grammed. The time and temperature (flashing) are also  
displayed. “1” will also be displayed to indicate the pe-  
riod.  
3) Press Hora once again. The display window will show  
the minutes only.  
4) Press and hold either the  
the correct minutes.  
or  
key until you reach  
4) Press  
or  
key to change the temperature to your  
5) Additional presses of Hora will advance the display to  
show the year, month and date of month. Press the  
selected temperature for the 1st heating period.  
5) Press Hora button, time will flash.  
or key to change the display to the correct setting  
for each.  
6) Press  
1st period.  
or  
key to adjust the start time for the  
6) Press Arrancar to exit the Time mode.  
7) The time will change in 15 minute increments.  
8) After you have set the time and the temperature for  
the period to begin, press Programa to advance to the  
next program period.  
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PROGRAMMING (For Programmable Model Only)  
9) Repeat steps 2 through 8 until all of the program times  
and temperatures are set for all program periods on  
that day.  
Enter the Cooling Program  
1) Press SISTEMA button to select “Frio” in the system  
switch area indicating the active mode being pro-  
grammed.  
10) Press Programa to the next day and repeat steps 2  
through 9.  
2) Follow Enter Heating Program instructions for entering  
cooling times and temperatures.  
11) When programming is complete and all of the times and  
temperatures match your desired heating schedule, press  
Arrancar. The thermostat will now run your program.  
Energy Saving ENERGY STAR® Factory Pre-Program  
The 1F85ST-0422 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 Arrancar button.  
The table below shows the factory set heating and cooling  
schedule for all days of the week.  
Wake Up  
(Period 1)  
Leave For Work Return Home  
(Period 2) (Period 3)  
Go To Bed  
(Period 4)  
Heating  
Program  
6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F  
6:00 AM 75°F 8:00 AM 83°F 5:00 PM 75°F 10:00 PM 78°F  
Cooling  
Program  
PlanningYour Program – Important  
The Heating and Cooling Program schedules below allow you  
to pencil in your own program times and temperatures.  
The 1F85ST-0422 comes configured for 5/1/1 day program-  
ming and can also be configured for 5/2 day programming  
(see configuration section).  
If you are re-programming a 5+1+1 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 higher than the cooling.  
Factory settings are listed on Monday through Friday, Satur-  
day and Sunday. If you are re-programming a 5/2 day sched-  
ule, pencil in your own times and temperatures directly below  
the factory times and temperatures.  
Worksheet for Re-Programming 5/2 Day and 5+1+1 Day Program  
Heating  
Program  
Wake Up  
(Period 1)  
Leave For Work Return Home  
(Period 2) (Period 3)  
Go To Bed  
(Period 4)  
6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F  
6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F  
6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F  
Mo-Fri  
Sat-Sun  
or Sat  
Sun  
5+1+1 only  
Heating  
Program  
Wake Up  
(Period 1)  
Leave For Work Return Home  
(Period 2) (Period 3)  
Go To Bed  
(Period 4)  
6:00 AM 75°F 8:00 AM 83°F 5:00 PM 75°F 10:00 PM 78°F  
6:00 AM 75°F 8:00 AM 83°F 5:00 PM 75°F 10:00 PM 78°F  
6:00 AM 75°F 8:00 AM 83°F 5:00 PM 75°F 10:00 PM 78°F  
Mo-Fri  
Sat-Sun  
or Sat  
Sun  
5+1+1 only  
7
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TROUBLESHOOTING  
Reset Operation  
Note: When thermostat is reset, installer configuration menu  
settings and programming will reset to factory settings.  
If a voltage spike or static discharge blanks out the display  
or causes erratic thermostat operation, you can reset the  
thermostat 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  
and  
and the VENT button simultaneously.  
The thermostat should go blank and then all segments will be  
displayed momentarily.  
Symptom  
Possible Cause  
Correction Action  
No Heat/No Cool/No Fan  
(common problems)  
1. Blown fuse or tripped circuit breaker.  
2. Furnace power switch to OFF.  
3. Furnace blower compartment door or  
panel loose or not properly installed.  
4. Loose connection to thermostat or  
system.  
Replace fuse or reset breaker.  
Turn switch to ON.  
Replace door panel in proper position to engage safety  
interlock or door switch.  
Tighten connections.  
No Heat  
1. Pilot light not lit.  
2. Furnace Lock-Out Condition. Heat  
may also be intermittent.  
Re-light pilot.  
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 SISTEMA Switch to CALOR 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 FRIO and lower the setpoint below the room  
temperature. There may be up to a five minute delay before  
the thermostat clicks in Cooling.  
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  
3. Possible short in heat/cool/vent system. under terminal block. Try resetting the thermostat as  
Heat, Cool or Fan  
Runs Constantly  
2. Possible short in thermostat.  
4. VENT Switch set to Fan ON.  
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.  
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  
temperature swing)  
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 bA for slow cycle in the Configuration  
menu, step 6 (Calor), 7 (Frio) or 8 (Bomba de Calor). If an  
acceptable cycle rate is not achieved, contact a local HVAC  
service person for additional suggestions.  
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  
St. Louis, Missouri  
of Emerson Electric Co.  

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