FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLY BEFORE INSTALLING OR OPERATING THIS
CONTROL COULD CAUSE PERSONAL INJURY AND/OR
PROPERTY DAMAGE.
APPLICATIONS
THERMOSTAT APPLICATION GUIDE
Description
Heat Pump (No Aux. or Emergency Heat)Yes
Heat Pump (with Aux. or Emergency Heat)Yes
Systems with up to 3 Stages Heat, 2 Stages CoolYes
Heat Only SystemsYes
Millivolt Heat Only Systems – Floor or Wall FurnacesYes
Cool Only SystemsYes
Gas or Oil HeatYes
Electric FurnaceYes
Hydronic (Hot Water) Zone Heat – 2 WiresYes
Hydronic (Hot Water) Zone Heat – 3 WiresNo
90 Series Blue Universal Thermostat with90 Series Blue Universal Thermostat with
90 Series Blue Universal Thermostat with
90 Series Blue Universal Thermostat with90 Series Blue Universal Thermostat with
To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse
or circuit breaker box until installation is complete.
This product does not contain mercury. However, this
product may replace a product that contains mercury.
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 and send it to:
White-Rodgers
2895 Harrison Street
Batesville, AR 72501
www.white-rodgers.com
PART NO. 37-6735A
0544
INSTALLATION
WARNING
!
Thermostat installation and all components of the
control system shall conform to Class II circuits per
the NEC code.
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.
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 oldthermostat one at a time. Do not let wires fall back into
the wall.
Installing New Thermostat
1. Pull the ther mostat body off the thermosta t base. Forcing
or prying on the ther mosta t will cause damage to the unit.
2. Place base over hole in wall and mark mounting hole
locations on wall using base as a template.
3. Move base out of the way. Drill mounting holes. If you
are using existing mounting holes and the holes drilled
are too large and do not allow you to tighten base snugly, use plastic screw anc hors to secure the base.
4. Fasten base snugly to wall using mounting holes shown
in Figure 1 and two mounting screws. Leveling is for
appearance only and will not affect thermostat operation.
5. Connect wires to ter minal block on base using
appropriate wiring schematic (see diag ram sheet
37-6740A).
6. Push excess wire into wall and plug hole with a fire resistant material (such as fiberglass insulation) to prevent
drafts from affecting thermostat operation.
7. Carefully line the ther mostat up with the base and sna p
into place.
Battery Location
2 "AA" alkaline batteries are included in the thermosta t a t
the factory with a battery tag to prevent power drainage.
Remove the battery tag to engage the batteries.
To replace batteries, set system to OFF, remo ve thermostat
from wall and install the batteries in the rear along the top of
the thermostat (see Figure 1).
Figure 1 – Thermostat base and rear view of thermostat
Mounting
Hole
Place Level
across
Mounting Tabs
(for appearance only)
W/E
W2
Y2
Mounting
Hole
Place Level
across
Mounting Tabs
(for appearance only)
2 "AA" Batteries
WIRING CONNECTIONS
Refer to equipment manufacturers' instructions for specific
system wiring information. After wiring, see CONFIGURATION section for proper thermostat configuration.
RH . . . . . . . . . . . . . . . Power for Heating
RC . . . . . . . . . . . . . . . Power for Cooling
C . . . . . . . . . . . . . . . . Common wire from secondary side of cooling
system transformer or heat only system transformer
For wiring diagrams, see 37-6740A.
Wiring diagrams shown are for typical systems and describe
the thermostat ter minal functions.
2
2
THERMOSTAT QUICK REFERENCE
Home Screen Description
Figure 2 – Home Screen Display
Time and Day
Room Temperature and Setting Temperature
(flashes when compressor is in 5 minute lockout)
System button for selecting
Heat/Off/Cool or Auto (Heat/Cool)
Fan (Auto/On)
Stage 1
Indicates when thermostat is
calling for Heat or Cool
Programming and Configuration Items
Displays and "Keypad Lockout" when in keypad
1
lockout mode.
Displays and "Temperature Limit" and "KeypadLockout" when limited range is activated and locked.
Displays only "Temperature Limit" when limited range
is activated.
Indicates period of day being programmed.
2
Temperature Up/Down
Displays indicating the current power
level of the 2 "AA" batteries. When the batteries
become low, "Change" will appear with the .
The batteries should be replaced at this time.
Menu for Cleaning, Programming
and Setting Time
Figure 3 – Programming & Configuration Items
11
10
9
8
14
13
1
2
12
RUN SCHEDULE (run program) button.
3
SET TIME button or HOLD temperature button.
4
Displays "Change Filter" when the system has run
5
for the programmed filter time period as a reminder
to change or clean your filter. Displays "HumidifierPad" when the system has run for the programmed
filter time period as a reminder to change or clean your
humidifier pad.
COPY button or INSTALLER CONFIG button.
6
CLEAN DISPLAY button allows 30 seconds to wipe off
7
the display or ADVANCE DAY button for programming.
Used in programming to set time and in configuration
8
menu to change selections.
"Hold Until" indicates the time when a temporary hold
9
period will end.
"Hours" and "Days" displays during steps in installer
10
configuration.
5
7
The words "Hold At" are displayed when the thermo-
11
stat is in the HOLD mode. "Temporary Hold At" is
displayed when the thermostat is in a temporary HOLD
mode.
"Call For Service" indicates a fault in the heating/
12
cooling system. It does not indicate a fault in the
thermostat.
"Stage 1" indicates when heating or cooling stage is
13
energized. "+2" also indicates when a second stage is
energized.
"Copy" indicates the copy program feature is being
14
used during programming.
6
4
3
3
INSTALLER/CONFIGURATION MENU
To enter the menu: Press the Menu button. Press and hold for 5 seconds the Installer Config button. This displays menu
item #1 in the table below. Press
to change a menu item.
Menu
Reference
Number
* Not Applicable
Program- Program- Press(Factoryto select from
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
mablemableButtonDefault) listed optionsComments
11MS 2HP 1, HP 2, SS 1Selects Multi-Stage (MS 2, No Hea t Pump), Hea t Pump 1
22
33Days (7)5, 0Selects programming option.
4* NAPS (4)2Selects programming steps per day.
54Cool OffCool Off Heat (Emer), Selects system switch configuration for Heat and Cool with
6* NAE (On)OFFSelects Energy Management Recovery on or off.
75Cr Heat (FA)SLSelects Heat cycle rate Fast (FA) or Slow (SL).
86Cr Cool (FA)SLSelects Cool cycle rate Fast (FA) or Slow (SL).
97Cr Emer (FA )SLIf HP 1 or HP 2 is selected for item #1, selects Emer cycle
108CL (OFF)OnSelects Compressor lockout ON or OFF.
119dL (On)OFFSelects display light on or off.
121001, 2, 3, 4 HISelects temperature display adjustment 1, 2, 3 or 4 degrees
1311°F°CSelects Fahrenheit or Celsius temperature display.
1412b (On)OFFSelects beeper on or off.
1513Heat (99)62-99Selects highest Heat setpoint temperature.
1715 KeypadL, PSelects keypad lockout full or partial to be set.
1816 KeypadOnSelects keypad lockout on or off.
1917FA Heat (On)OFFIf HP or MS selected in item 1, selects Hea t Fast second
2018FA Cool (On)OFFIf HP or MS selected in item 1, selects Cool Fast second
2119000 ChangeOnSelect change filter alert time period.
2220ChangeOnSelects change humidifier pad alert time period
Non-DisplayedPress or
1) This control can be configured for:
MS2 – Multi-Stage System (no heat pump)
HP1 – Heat Pump with one stage of compressor
HP2 – Heat Pump with two stage compressor or two
compressor system, Gas or Electric backup
SS1 – Single Stage System
2) GAS or Electric (ELE) fan operation. If the hea ting system
requires the thermostat to energize the fan, select ELE.
Select GAS if the heating system energizes the fan on a
call for heat. Note: Resetting the thermostat switches
the option to ELE.
4
to advance to the next menu item or to retur n to a pr evious menu item. Press or
CONFIGURATION MENU
(HP 1, 1 compressor), Heat Pump 2 (HP 2, 2 compressor
or 2 speed compressor), or Single Stage.
(GAS)ELEGAS setting: furnace controls blower.
ELE setting: thermostat controls blower.
Heat AutoOff Heat, Cool Of fAuto changeover, Heat & Cool, Hea t Only or Cool Only.
rate.
(Room temp)1, 2, 3, 4 LOhigh or low.
Can select 62° to 99°F.
Can select 45° to 82°F.
lockout (L)Temperature LimitActivates temperature limit ranges.
lockout (OFF)
000000 to 999Selects keypad lockout combination number if lockout is on.
000 is not a valid selection.
stage On or Off.
stage On or Off.
Filter (OFF)
200 hours25 to 1975 hoursWhen set ON, selects time in 25 hour increments.
Humidifier
(OFF)
100 hours25 to 1975 hoursWhen set ON, selects time in 25 hour increments.
3) This control can be configured for 7 independent day or
5/1/1 day programming or non-programmable mode. The
display indicates "7 Days" as default. The programs per
week can be toggled to "5 Days" or "0 Days" by pressing
or keys. A selection of 0 Days for non-program-
the
mable will eliminate the need for EMR, and that step
in the menu will be skipped.
4) Programmable Periods – This control can be configured
for 4 or 2 programmable periods per day. The display
indicates "4 PS" in the display as default. The programmable periods can be toggled by pressing the
or
keys.
INSTALLER/CONFIGURATION MENU
5) System Switch Configuration – This thermostat is
configured for Heat and Cool with Auto changeover
(SYSTEM switch with Cool Off Heat Auto) default. It can
also be configured for Heat and Cool (Cool Off Heat),
Heat only (Off Heat), and Cool only (Cool Off).
6) Energy Management Recovery – (this step is skipped if
configured to be non-programmable).
Energy Management Recovery (E) On 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 temperatur e required to reach setpoint.
Example: If E On is selected 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 thermostat setpoint will change to 70° at 6:35 AM. Cooling allows
more time per degree, because it takes longer to reach
temperature.
for Heat is fast cycle (FA Cr), which cycles heat at
approximately 0.6°F. If you prefer slow cycle, press the
or key to change to SL. Heat will cycle at approximately 1.2°F. For Cool the default setting is fast cycle
(FA Cr), which cycles cool at approximately 1.2°F. If you
prefer slow cycle, press the
cool will cycle at approximately 1.7°F. Cycle rate selection for EMER and Aux is only for HP 1 or HP 2 systems.
10) Select Compressor Lockout CL OFF or ON – Selecting
CL 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 compressors already have a time delay built in and do not require
this feature. Your compr essor manufacturer can tell you if
the lockout feature is already present in their system.
When the thermostat compressor time delay occurs, it
will flash the setpoint for up to five minutes.
11) Select Backlight Display – The display backlight
improves display contrast in low lighting conditions.
When the C terminal is powered, selecting backlight (dL
ON) will turn the light on continuously. Selecting backlight
OFF will turn the light on momentarily after any key is
pressed. When the C terminal is not powered, this
selection has no effect.
12) Select Temperature Display Adjustment 4 LO to 4 HI
Allows you to adjust the room temperature display up to
4° higher or lower. Your thermostat was accurately calibrated at the factory, but you have the option to change
the display temperature to match your previous thermostat. The current or adjusted room temperature will be
displayed on the left side of the display.
13) Select F° or C° Readout – Changes the display readout
to Centigrade or Fahrenheit as required.
14) Select Audio Prompting (Beeper) On or Off – Default
setting is On (On b) if you wish to turn of f the beeper
select Off b.
15) Heat Temperature Limit Range – This feature adjusts
the highest setpoint temperature for heat. The default
setting is 99°F. It can be changed between 62°F and
98°F by pressing the
limit" icon will be displayed to the left of your setpoint
temperature when using this feature. The "temperaturelimit" icon will flash if an attempt is made to adjust the
temperature beyond the range selected.
16) Cool Temperature Limit Range – This feature adjusts
the lowest setpoint temperature for cool. The default
or key to change to SL,
or key. The "temperature
setting is 45°F. It can be changed between 46°F and
82°F by pressing the
limit" icon will be displayed to the left of your setpoint
temperature when using this feature. The "temperaturelimit" icon will flash if an attempt is made to adjust the
temperature beyond the range selected.
17) Keypad Lockout – This step allows you to select the
type of lockout or limited range security required. If no
lockout or limited range security is required, press
advance the menu.
Three security settings are available in this menu item.
Use the
Lockout selections are:
"Keypad Lockout and L" = Total Lockout. Total Lockout
locks all keys.
"Keypad Lockout and P" = Partial Lockout. Partial Lockout allows only the
set temperature limits.
"Temperature Limit/Keypad Lockout" prevents
changing the temperature limits in the Configuration
Menu.
18) Keypad Lockout Combination Number Selection
Display will read "OFF" "Keypad Lockout".
Skip this step and continue through the configuration
menu items 19 thru 22 if you require an Air Filter Change
out indicator or Humidifier Pad Change out indicator by
pressing the
Return to this point when you are ready to start your
selected lock-out and continue by:
Pressing
Press
Pressing
combination number. Note: "000" is not a valid
combination choice.
Record the number you select for future use.
Press to exit the menu. The security feature you
select will start in 10 seconds. The system button will
remain active for 10 seconds to allow setting Heat, Off,
Cool or Auto.
19 & 20)Select Fast Second Stage ON or OFF – In the run
mode, with the fast Heat feature enabled (FA Heat On), if
the Heat setpoint temperature is manually raised by 3°F
(2°C) or more above the actual temperature using
second stage will energize immediately. With FA OFF,
second stage will not energize until the setpoint temperature is 1°F or more above actual temperature for more
than ten minutes. The Fast Cool feature (FA Cool)
provides the same controls when the setpoint temperature is lowered.
21) Select Filter Replacement Run Time – The thermostat
will display "Change Filter" after a set time of blower
operation. This is a reminder to change or clean your air
filter. This time can be set from 25 to 1975 hours in 25
hour increments. A selection of OFF will cancel this
feature. When "Change Filter" is displayed, you can
clear it by pressing Clean Display. In a typical application,
200 hours of run time is appr oximately 30 days.
22) Select Humidifier Pad Replacement Run Time – The
thermostat will display "Humidifier Pad" after a set time
of heating operation. This is a reminder to change or
clean your humidifier pad. This time can be set from 25
to 1975 hours in 25 hour increments. A selection of OFF
will cancel this feature. When "Humidifier Pad" is
displayed, you can clear it by pressing Clean Display.
Check with your humidifier manufacturer for a recommended maintenance interval.
or keys to select the lockout desired.
button to advance.
or keys to select ON.
. Display will read "000".
or keys to select your keypad lockout
or key. The "temperature
to
or keys to operate within your
the
5
OPERATING YOUR THERMOSTAT
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.
Choose the System Setting
(Heat, Off, Cool, Auto)
Press the SYSTEM button to select:
Heat: Thermostat controls only the hea ting system.
Off: Heating and Cooling systems are off.
Cool: Thermostat controls only the cooling system.
Auto: Auto Changeover is used in areas where both heating
and cooling may be required on the same day. AUTO allows
the thermostat to automa tically 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.
Manual Operation for
Non-Programmable Thermostats
Press the SYSTEM button to select Heat or Cool and use
or buttons to adjust the temperature to your
the
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.
IMPORTANT!
Manual Operation (Bypassing the Program)
Programmable Thermostats
Press or and the HOLD button and 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 RunSchedule to cancel HOLD and resume the programmed
schedule.
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 shor tened by
pressing
period can range from 15 minutes to 7 days.
Example: If you turn up the heat during the mor ning program, it will be automatically lowered later, when the temporary hold period ends. To cancel the temporary setting at any
time and return to the program, press Run Schedule.
If the SYSTEM button is pressed to select AUTO the
thermostat will change to Heat or Cool, whichever ran last. If
it switches to heat but you want cool, or it changes to cool
but you want heat, press both
neously to change to the other mode.
or lengthened by pressing . Program Override
or buttons simulta-
PROGRAMMING
Set Current Time and Day
1) Press Menu and then Set Time button once. The display
will show the hour only.
2) Press and hold either the
the correct hour and AM/PM designation (AM begins a t
midnight, PM begins at noon).
3) Press Set Time once again. The display window will show
the minutes only.
4) Press and hold either the
the correct minutes.
5) Press Set Time once again. The display will show the day
of the week.
6) Press the
of the week.
7) Press Run Schedule once. The display will show the
correct time and room temperature alterna tely.
or key until you reach the current day
Programming Tip: Copy Button
You may copy any daily program to another day or group of
days by pressing the Copy button. In 7 day programming
mode when the Copy button is pressed, the other 6 days of
the week will flash. To copy the current pro g ram into the
remaining six days, simply press the Copy button again. To
copy the current program to another day of the week, press
Advance Day to select the day and press Copy to paste the
program. In 5/1/1 day programming mode the copy function
is similar. The weekday (Mon-Fri) program can be copied to
Sat and Sun (both flashing) or use Advance Day to choose
Sat or Sun and press the Copy button to paste the program.
or key until you reach
or key until you reach
Fill in the blank schedule on the next page then:
Enter the Heating Program
1) Press the Menu button and then press Set Schedule.
Press SYSTEM button to select either "Heat" or "Cool" in
the system switch area indicating the active mode being
programmed. You can switch to the other mode by
pressing the system switch at any time.
2) The top of the display will show the day(s) being programmed. The time and set at temperature are also
displayed. "Morning" will also be displayed to indicate
the period.
3) Press
selected temperature for the 1st heating period (Morning).
4) Press or key to adjust the start time for period.
5) The time will change in 15 minute increments.
6) After you have set the time and the temperature for the
period to begin, press Set Schedule to advance to the
next program period.
7) Repeat steps 2 through 6 until all of the pro g ram times
and temperatures are set for all program periods on
that day.
8) Press "Advance Day" to change to the next day and
repeat steps 2 through 8.
9) When programming is complete and all of the times and
temperatures match your desired heating schedule, press
Run Schedule. The thermostat will now run your program.
or key to change the temperature to your
Enter the Cooling Program
1) Press the SYSTEM button until the Cool icon appears.
2) Follow Enter Heating Program instructions for entering
cooling times and temperatures.
6
PROGRAMMING
Energy Saving Factory Pre-Program
The 1F95-1271 thermosta ts are pro g rammed with the energy saving settings shown in the table below for all days of the
week. If this pro g ram suits your needs, simply set the thermostat c lock and press the RUN button.
The table below shows the factory set heating and cooling sc hedule for all days of the week.
* Wake UpLeave For Work* Return HomeGo To Bed
(Morning)(Day)(Evening)(Night)
Heating
Program
Cooling
Program
* You can eliminate these two program periods in the configuration menu (reference #3) if the building is occupied all day.
Day will change to 6:00 am and can be programmed as required.
Planning Your Program – Important
The Heating and Cooling Program schedules below allow you to pencil in your own program times and temperatures.
The 1F95-1271 comes configured for 7 day programming and can also be configured for 5+1+1 programming (see configuration section).
Factory settings are listed on Monday, Sa turday and Sunday. If you are re-prog ramming a 5+1+1 day schedule, pencil in your
own times and temperatures directly below the factory times and temperatures.
If you are re-programming a 7 day 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.
6:00 AM70°F8:00 AM62°F5:00 PM70°F10:00 PM62°F
6:00 AM78°F8:00 AM85°F5:00 PM78°F10:00 PM82°F
Worksheet for Re-Programming 5+1+1 and 7 Day Program
Heating
Program
MON
TUE
WED
THU
FRI
SAT
SUN
Cooling
Program
MON
TUE
WED
THU
FRI
SAT
Wake Up Leave For Work Return HomeGo To Bed
(Morning)(Day)(Evening)(Night)
6:00 AM70°F8:00 AM62°F5:00 PM70°F10:00 PM62°F
6:00 AM70°F8:00 AM62°F5:00 PM70°F10:00 PM62°F
6:00 AM70°F8:00 AM62°F5:00 PM70°F10:00 PM62°F
Wake Up Leave For Work Return HomeGo To Bed
(Morning)(Day)(Evening)(Night)
6:00 AM78°F8:00 AM85°F5:00 PM78°F10:00 PM82°F
6:00 AM78°F8:00 AM85°F5:00 PM78°F10:00 PM82°F
SUN
6:00 AM78°F8:00 AM85°F5:00 PM78°F10:00 PM82°F
7
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 SYSTEM button simultaneously. The thermostat
should go blank and then all segments will be displayed momentarily.
Symptom
No Heat/No Cool/No Fan
(common problems)
Possible Cause
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.
Corrective Action
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
No Cool
Heat, Cool or Fan
Runs Constantly
1. Pilot light not lit.
2. Furnace Lock-Out Condition. Heat
may also be intermittent.
3. Heating system requires service or
thermostat requires replacement.
1. Cooling system requires service or
thermostat requires replacement.
1. Possible short in wiring.
2. Possible short in thermostat.
3. Possible short in heat/cool/fan system.
4. FAN Switch set to Fan ON.
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.
Diagnostic: Set SYSTEM Switch to HEAT and raise the
setpoint above room temperature. Within a few seconds
the thermostat should make a soft click sound. This sound
usually indicates the thermostat is operating properly. If
the thermostat does not click, try the reset operation listed
above. If the thermostat does not click after being reset
contact your heating and cooling service person or place
of purchase for a replacement. If the thermostat clicks,
contact the furnace manufacturer or a HVAC service
person to verify the heating is operating correctly.
Same as diagnostic for No Heat condition except set the
thermostat to COOL and lower the setpoint below the
room temperature. There may be up to a five minute delay
before the thermostat clicks in Cooling.
Check each wire connection to verify they are not shorted
or touching together. No bare wire should stick out from
under terminal block. Try resetting the thermostat as
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.
1. The location of the thermostat and/or
the size of the Heating System may
be influencing the cycle rate.
The thermometer can be adjusted +/- 4 degrees. See
Temperature Display Adjustment in the Configuration
Menu section.
Digital thermostats provide precise control and cycle faster
than older mechanical models. The system turns on and
off more frequently but runs for a shorter time so there is
no increase in energy use. If you would like an increased
cycle time, choose SL for slow cycle in the Configuration
menu, step 6 (heat) or 7 (cool). If an acceptable cycle rate
is not achieved, contact a local HVAC service person for
additional suggestions.
Press the menu button (button will disappear) and hold in
for 20 seconds. This unlocks the thermostat.
HOMEOWNER HELP LINE: 1-800-284-2925
St. Louis, Missouri
www.white-rodgers.comwww.white-rodgers.com
www.white-rodgers.com
www.white-rodgers.comwww.white-rodgers.com
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