Shipping Temperature Range ................................... -4° to +150°F (-20° to +65°C)
Dimensions Thermostat ............................................ 3-7/16"H x 4-7/16"W x 1-1/4"D
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. Refer to www.thermostat-recycle.org for
location to send product containing mercury.
www.white-rodgers.com
www.emersonclimate.com
PART NO. 37-7248A
1119
WARNING
!
INSTALLATION
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 old thermo- stat one at a time. Do not let wires fall back into the wall.
Installing New Thermostat
1. Pull the thermostat body off the thermostat base. Forcing
or prying on the thermostat will cause damage to the unit.
2. Place base over hole in wall and mark mounting hole
locations on wall using base as a template.
3. Move base out of the way. Drill mounting holes. If you
are using existing mounting holes and the holes drilled
are too large and do not allow you to tighten base snug ly, use plastic screw anchors to secure the base.
4. Fasten base snugly to wall using mounting holes shown
in Figure 2 and two mounting screws. Leveling is for
appearance only and will not affect thermostat operation.
5. Connect wires to terminal block on base.
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.
7. Carefully line the thermostat up with the base and snap
into place.
Batteries
2 "AA" alkaline batteries are included in the thermostat. To install the batteries, pull the battery door as shown by the arrow
and lift open. Using the polarity indicated inside the battery
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, following the
instructions above.
Figure 1 – Battery door shown open
“AA” Alkaline Batteries
Thermostat can be powered by system AC power or Battery.
If
is displayed, the thermostat is battery powered. If
is not displayed, thermostat is system powered with
optional battery back-up. When battery power remaining is
approximately half, the
" is displayed, install fresh “AA” alkaline batteries immediately. For best results, replace all batteries with a premium
brand alkaline battery such as Duracell
recommend 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 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
within two days if batteries are not replaced.
will be displayed. When "Change
®
or Energizer®. We
or . Another offset will occur
SS/HP Switch
Figure 2 – Thermostat base and rear view of thermostat
(Conventional or Heat Pump Selection)
The SS/HP switch is factory set to the SS position. In this position, thermostat is configured as conventional single stage. If
you have a single stage heat pump system, switch SS/HP to
HP position (see figure 2).
Gas/Elec Switch (Fan Option)
The GAS/ELEC switch is factory set to the GAS position. In
this position, the thermostat will not power the circulator fan on
a call for heat, but will power the circulator on a call for cool.
Mounting
Hole
Place Level
across
Mounting Tabs
(for appearance only)
Mounting
Hole
Place Level
across
Mounting Tabs
(for appearance only)
If your system requires that the thermostat power the circulator fan on a call for heat, this switch should be set to the ELEC
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.
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.
SS/HP
Switch
GAS
SS
ELEC
HP
GAS/ELEC Switch
WIRING CONNECTIONS
Refer to equipment manufacturers' instructions for specific system wiring information. After wiring, see CONFIGURATION
section for proper thermostat configuration. Refer to 37-6754 wiring diagram specifications.
TERMINAL DESIGNATION DESCRIPTIONS
Terminal Designation Description
HP) Changeover valve for heat pump RC ........................ Power for Cooling
Y ............................ Compressor Relay C .......................... Common wire from secondary side of
W ........................... Heat Relay cooling system transformer or heat
G ............................ Fan Relay only system transformer
O/B ........................ (SS) Power closed for 3 wire zone RH ........................ Power for Heating
2
Terminal Designation Description
Room
THERMOSTAT QUICK REFERENCE
Home Screen Description
Displays the power level of the
2 "AA" batteries:
indicates good power level.
indicates batteries at about
half power. “Change ” indicates
batteries are low and should be
replaced with 2 new premium brand
“AA” Alkaline batteries.
Figure 3 – Home Screen Display
SYSTEM
Indicator
SYSTEM
Button
Time
Day of Week
FAN
Indicator
FAN
Button
Temperature
MENU/SCHEDULE/RUN
Button
Figure 4 – Programming & Configuration Items
2
1
Setting
Temperature
Temperature Up/Down
HOLD Button
11
8
3
9
5
6
Programming and Configuration Items
Flame icon (
1
HEAT mode. Snowflake icon (
system is in COOL mode.
2
The word "Hold" is displayed when the thermostat is
in the HOLD mode. "Temp Hold" is displayed when
the thermostat is in a Temporary HOLD mode.
Displays "Change Filter" when the system has run for
3
the programmed filter time period as a reminder to
change or clean your filter.
4
Displays "Set" for setpoint when in Run Program mode.
Displays System Mode (Heat, Cool, Auto, Off) or
5
"Time" in menu mode.
6
Displays Fan Mode (On, Auto) or "Run" in Menu
mode or "Saving" in Cool Savings
) is displayed when the system is in
) is displayed when the
TM
Mode.
4
12
10
7
7
Displays "Run Schedule", "Schedule", or "Menu".
8
Displays "Save" when Cool Savings
Displays "Heat Pump" when system is configured
9
as Heat Pump thermostat.
Displays "Hold" in programmable mode when
10
in "Hold" mode. Displays Light Bulb in nonprogrammable mode.
Alternates Time of Day and "LOC" when keypad
11
lockout is enabled.
In Configuration Menu, shows screen number. If blank,
12
thermostat is earlier model and requires instruction
sheet 37-6749D.
TM
is working.
3
INSTALLER/CONFIGURATION MENU
To enter the Configuration Menu, SYSTEM must be set to HEAT, COOL, Em or AUTO. Press the Menu button for at least 5
seconds. The display will show item #1 in the table below. Press Menu button to advance to the next menu item. Press
to change an item option. Shaded items are not available on 1F86.
INSTALLER/CONFIGURATION MENU
Menu
Screen
Number
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
SSHP
Displayed
(Factory Default)
(OFF) LkLSelects Keypad Lockout.
(000) Lk001 to 999Selects Keypad lockout combination number
(Cool O) OnHeat b OnReversing Valve Output (SS/HP switch must be in
(2) PP 3, P 0Selectable Programs Per Week
(OFF)
Cool Savings CS
(3) CS6, 5, 4, 3, 2, 1Selects Cool Savings value 1 (low) to 6 (high)
(On) EE OFFSelects Energy Management Recovery (EMR)
(ME)
CR Heat
(FA)
CR Cool
(FA)
CR Heat Pump
(OFF) CLCL OnCompressor Lockout Time
Auto-Heat
Cool-Off
(On) dLOFFSelects Display Light On or OFF
0 HI1 HI, 2 HI, 3 HI, 4 HI,
°F°C
L (90) HeatL 62 to L 89Selects Limited HEAT Range
L (45) CoolL 46 to L 82Selects Limited COOL Range
SL, FAAdjustable Anticipation (Heat) (only when SS/HP
switch is at the SS position)
SLAdjustable Anticipation (Cool) (only when SS/HP
switch is at the SS position)
SLAdjustable Anticipation (Heat Pump)
(only when SS/HP switch is at the HP position)
System Mode Configuration with Automatic
with Fan icon,
Adjustable Ambient Temperature Display
Selects Fahrenheit/Celsius Temperature Display
When on, selects time in 25 hour increments
Comments
On or OFF
Changeover
25-hour increment
or
1 & 2)Keypad Lockout – This menu selection will display
“Lk” and “OFF” (default, keypad not locked out). The
and are used to toggle the selection between
OFF and “L” (keypad locked out). When the keypad
lockout selection is enabled “L”, and the MENU button
is pressed again, the display will indicate the number
“0” (default, still disabled) in the time digits. The
and
to 999. If a combination of 0 is selected and the MENU
button is pressed, the menu will be exited and keypad
will not be locked. If 1 to 999 is selected and the MENU
button is pressed, the combination is stored into memory
and the menu is exited. The “Lk” will display designating
keypad locked with a valid combination. 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.
While the keypad is locked out, a press of MENU will en-
ter the configuration menu. The first menu item displayed
is the combination code “0”. The
used to set the combination unlock number from 0 to
4
are used to set the combination number from 0
or keys are
999. If the unlock number matches exactly with the combination lock number stored in memory when the MENU
button is pressed, the keypad is unlocked and the “Loc”
is removed. If the unlock number does not match when
the MENU button is pressed, the combination returns to
“0” for another attempt to set the unlock code. To exit the
menu without unlocking the keypad, press RUN SCHED.
To reset the combination code and unlock the keypad if
the code is forgotten, see troubleshooting section.
3) Select Reversing Valve Output (SS/HP switch must be set
at HP, omitted if SS/HP switch is SS Position) – 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.
INSTALLER/CONFIGURATION MENU
4) Program Options 1F80 only – This control can be configured
for 5/2 day or 5/1/1 day programming or non-programming
mode. The default setting is P2, indicating 5/2 day programming. The programs per week can be toggled to P3 or P0
by pressing the
non-programmable will eliminate the need for EMR, and
that step in the menu will be skipped.
5 & 6)Select Cool Savings™ and value – Selects the Cool
Savings feature On or OFF. If selected On, press MENU to
select the amount of adjustment for the feature in Cool mode
with 1 (1°) being the least amount of adjustment and 6 (6°)
being the most amount of adjustment. Default value is 3
(3°). In normal operation "Saving" will appear under "Fan".
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 the 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
temperature, to a maximum number of degrees selected.
Adjusting 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. When Cool
Savings is making adjustments, "Save" will show next to the
setpoint temperature and the room temperature may vary
within the adjustment range selected.
If this feature is selected OFF, no change will occur when
the cooling system is continually running during periods of
high demand.
7) Energy Management Recovery: (this step is skipped if
configured to be non-programmable).
Energy Management Recovery (E) On enables the ther-
mostat to start heating or cooling early to make the building
temperature reach the program setpoint at the time you
specify. Heating will start 5 minutes early for every 1° of
temperature required to reach setpoint.
Example: If E On is selected and have your heating pro-
grammed to 65° at night and 70° at 7 AM. If the building
temperature is 65°, the difference between 65° and 70° is
5°. Allowing 5 minutes per degree, the thermostat setpoint
will change to 70° at 6:35 AM. Cooling allows more time per
degree, because it takes longer to reach set temperature.
8, 9 & 10) Cycle Rate Selection – The factory default settings
with SS/HP switch in SS position for Heat is medium
cycle (ME) and Cool is fast cycle (FA). For Heat Pump
(HP), the default setting is fast cycle (FA).
To change cycle rate, press the
Cycle rate differentials for different settings are:
or keys. A selection of 0 Days for
or key.
11) Select Compressor Lockout CL OFF or ON – SelectingCL 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
compressor manufacturer can tell you if the lockout feature
is already present in their system. When the thermostat
compressor time delay occurs, it will flash the setpoint for
up to five minutes.
12) System Mode Configuration – This thermostat is config-
ured 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 with
fan (Off Heat), Heat only without fan, Auto only (Auto Off),
and Cool only (Cool Off).
13) 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 whether the backlight is
selected ON or OFF.
14) 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.
15) Select F° or C° Readout – Changes the display readout to
Centigrade or Fahrenheit as required.
16 & 17) Temperature Limit Range Heat or Cool – This se-
lection sets the maximum HEAT (16) or minimum COOL
(17) temperature for the setpoint range. Select the limit
temperature using the
or keys. In the Run mode,
the setpoint temperature will not adjust past the limit temperature selected. When the limit temperature is reached,
trying to raise or lower the setpoint past the limit will cause
“L” to be displayed in the times digits for about 6 seconds.
This feature is not available on earlier models.
18 & 19)Select Filter Replacement Reminder and Set Run
Time. Select the "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 "Change Filter" as a reminder to change or
clean your air filter. When "Change Filter" is displayed,
press MENU button to clear the display and restart the time
to the next filter change.