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.white-rodgers.com for location to
send the product containing mercury.
PART NO. 37-6914D
Replaces 37-6914C
0905
Page 2
INSTALLATION
WARNING
!
Thermostat installation and all components of the
control system shall conform to Class II circuits per
the NEC code.
Remove Old Thermostat
Before removing wires from old thermostat, mark wires for
terminal identifi cation so the proper connections will be made
to the new thermostat.
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 snugly,
use plastic screw anchors 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 terminal block on base using appropriate
wiring schematic.
6. Push excess wire into wall and plug hole with a fi re resistant material (such as fi berglass insulation) to prevent
drafts from affecting thermostat operation.
7. Carefully line the thermostat up with the base and snap
into place.
Thermostat Power MethodSwitch Position/Description
Battery Powered, no 24
Volt system power available.
Hardwired with Battery
Back-up, for 24 Volt systems
with common connection from
transformer to "C" terminal
on thermostat.
*Battery Powered with
Power Stealing Assist,
for 24 Volt systems with no
common connection from
transformer to "C" terminal on
thermostat.
Switches "On", thermostat
runs on batteries.
Switches "On", thermostat
runs on power directly from
transformer with battery backup.
Switches "On", thermostat
runs on batteries and
supplemental power drawn
through the heat or cool circuit.
*Power Stealing Assist is very reliable to increase battery life,
but on a small number of heating or cooling systems with high
impedance electronic modules you may observe one of the
following conditions:
1. The furnace draft inducer motor may run with no call for
heat.
2. The furnace fan may turn on with no call for heat or may
not turn off.
3. The furnace may not turn off when the call for heat ends.
4. The air conditioner may not turn off when the call for cool
ends.
If the Power Stealing Assist method is not compatible with
your system, place the Power Stealing Switches to "Off". This
cancels Power Stealing Assist, operates the thermostat on
batteries and corrects the condition.
Figure 1 – Thermostat Base Multi-Stage 1F95-1291
Battery Location
2 "AA" alkaline batteries are included in the thermostat at 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, remove thermostat
from wall and install the batteries in the rear along the top of
the thermostat (see Figure 1). For best results, use a premium brand "AA" alkaline battery such as Duracell
®
gizer
. If the home is going to be unoccupied for an extended
period (over 3 months) and
is displayed, the batteries
®
or Ener-
should be replaced before leaving.
Power Stealing Switches
The Power Stealing Switches (Fig. 1) should be left in the
"On" position for most systems. The information in the
following table details the thermostat power method and
switch options.
Mounting
Hole
Place Level
across Mounting Tabs
(for appearance only)
Rear view of thermostat
O/B
L
Y2
Y
+
S
-
HM
W2
W/E
6
DHM
Mounting
Hole
Place Level
across Mounting Tabs
(for appearance only)
2 "AA" Batteries
Stack
Power
Stealing
Switch
Power
Stealing
Switches
2
Page 3
WIRING DIAGRAMS
Figure 2 – Single Stage or Multi-Stage System
(No Heat Pump) with Single Transformer
System
Single Stage 1
(SS1)
Multi Stage 2
(MS2)
RCRHCYY2W/EW2GO/B6L
24 volt
power for
cooling
24 volt
power for
heating
24 volt
common
(optional
for system
operation,
required
for remote
sensor)
Call for cool
Cool mode-1st
stage
No Output
Cool mode-2nd
stage
Call for heat
Heat mode-1st
stage
Single Stage and Multi-Stage Connections
Refer to equipment manufacturers’ instructions for specifi c system
wiring information.
This thermostat is designed to operate a single-transformer or twotransformer system.
You can confi gure the thermostat for use with the following fossil fuel
systems:
Figure 3 – Heat Pump Systems
System
RCRHCYY2*W/E*W2GO6L
Heat mode-2nd
stage, Emergency
stage,
stage,
Mode-1st stage
*Note: Dual Fuel
energizes Heat
mode stage 1
(compressor)
when auxiliary
heat is energized
Heat mode-3rd
stage, Emergency
Mode-1st stage
*Note: Dual Fuel
energizes Heat
mode stages 1
compressors)
when auxiliary
heat is energized
Heat
Pump 1
(HP1)
Heat
Pump 2
(HP2)
24 volt
power for
cooling
24 volt
power for
heating
24 volt
common
(optional
for system
operation,
required
for remote
sensor)
Heat mode-1st
stage,
Cool mode-1st
stage,
(Compressor)
No Output
Heat mode-2nd
Cool mode-2nd
(Compressor)
No output
Heat mode-2nd
stage
Blower/Circulator fan
energized on a call
for cool or Fan On
(also energized in
heating if configured
for Electric Heat)
Installer
Configuration
Menu selects
“O” or “B” for
changeover
function. Set
to “O” terminal
energized in Cool
& Off mode. Set
to “B” terminal
energized in
Heat & mergency
mode
Power closed
connection for
SPDT 3-wire
zone valve
Fault or System
Malfunction
Indicator for
Heat Pumps
with “L” terminal
connection.
Original production
1F95-1291’s
do not have this
connection
NEUTRAL
24VAC
HOT
SINGLE STAGE (SS 1) gas, oil or electric.
TRANSFORMER
MULTI-STAGE (MS 2)gas, oil or electric.
After wiring, see INSTALLER CONFIGURATION section for proper
thermostat confi guration.
Heat mode-3rd
stage, Emergency
Mode-2nd stage
option de-
option de-
and 2 (both
*Note: Dual Fuel
option de-
energizes Heat
mode stage 1
(compressor)
when auxiliary
heat is energized
Heat mode-4th
stage, Emergency
Mode-2nd stage
*Note: Dual Fuel
option deenergizes Heat
mode stages 1
and 2 (both
compressors)
when auxiliary
heat is energized
Blower/Circulator fan
energized on a call
for cool or Fan On
(also energized in
heating if configured
for Electric Heat)
Installer
Configuration
Menu selects
“O” or “B” for
changeover
function. Set
to “O” terminal
energized in Cool
& Off mode. Set
to “B” terminal
energized in
Heat & mergency
mode
Power closed
connection for
SPDT 3-wire
zone valve
Fault or System
Malfunction
Indicator for
Heat Pumps
with “L” terminal
connection.
Original production
1F95-1291’s
do not have this
connection
120VAC
CLASS II
120VAC
HEATING
120VAC
CLASS II
TRANSFORMER
24VAC
HOT
*Dual fuel option, if selected turns off compressor(s) when Auxiliary stages energize.
Heat Pump Connections
If you do not have a heat pump system, refer to fi gures 3 & 4.
Refer to equipment manufacturers’ instructions for specifi c system
wiring information.
You can confi gure the thermostat for use with the following heat pump
systems.
NEUTRAL
NEUTRAL
24VAC
HOT
TRANSFORMER
120VAC
COOLING
CLASS II
HEAT PUMP TYPE 1 (HP 1). Single stage compressor system;
gas or electric backup.
HEAT PUMP TYPE 2 (HP 2).Multi-stage compressor or two
compressor system with gas or electric backup.
After wiring, see INSTALLER CONFIGURATION section for proper
thermostat confi guration.
3
Page 4
WIRING DIAGRAMS
Figure 4 – Humidity and Sensors
HM
Humidification Terminal,
Energizes on call for
heat if Humidity setpoint
is above room humidity.
Can also be used to
provide humidification
independent of a call for
heat and/or in cooling
mode if Automatic
Humidification is
selected in Configura-
tion Menu item #34
DHM
De-energizes on call for
Dehumidification to
lower the fan speed.
The DHM terminal is
only used on systems
with a compatible
dehumidification feature
that have the required
terminal connection on
the contol module or
have a relay installed to
lower the fan speed
+
Supply voltage
to remote
temperature
sensor
S
Remote
temperature
sensor signal
-
Supply voltage
to remote
temperature
sensor
Dehumidifi cation wiring without an electronically controlled variable speed blower system for
single stage compressor system only.
If you have a single stage compressor system see the diagram below. A relay (customer provided) should be installed
as shown in Fig 7 to switch the fan speed to the next lower
speed on a call for dehumidifi cation from the thermostat. The
reduction in air fl ow allows the coil to remove more humidity
from the air. The relay should be rated for blower motor load.
Since this confi guration reduces the air fl ow in cooling, the
Figure 5 – Typical Wiring for Dehumidifi er System
Normal High
DHM
No
Relay
90-293Q
or equivalent
N
“Cool Fan Output”
1
Normal Cool speed position (DHM energized)
2
Dehum speed mode (DHM de-energized)
NC
1
2
Dehum
Speed Fan
anti-freeze-up control (White-Rodgers CAFC) or equivalent is
recommended. The CAFC prevents the air conditioning coil
from freezing due to low air fl ow, dirty fi lters, low refrigerant
pressure, etc. The CAFC snaps onto the suction line close to
the evaporator coil as possible and breaks the compressor
circuit when the suction line drops below 38 °F and re-make
the circuit at 46°F.
Med
Low
“Heat Fan Output”
N
HM
Humidifier
System
Figure 6 – Typical Wiring for 120V Humidifi er System
HM
Relay
90-290Q
or equivalent
Humidifier
System
HOT
NEUTRAL
120 VAC
Figure 7 – Typical Wiring for 24V Humidifi er System
R
24 VAC
NEUTRAL
TRANSFORMER
HOT
24 VAC
120 VAC
R
NEUTRAL
TRANSFORMER
HOT
120 VAC
4
Page 5
5
6
7
8
9
10
11
12
13
14
15
16
17
18
THERMOSTAT QUICK REFERENCE
Home Screen Description
Figure 8 – Home Screen Display
Day of Week
Room
Temperature
Time of Day
Note: If is displayed, the
thermostat is battery powered.
When battery power remaining
is approximately half, will
System
Switch
be displayed. 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.
Fan
Switch
Programming and Confi guration Items
Displays and "Keypad Lockout" when in keypad
1
lockout mode.
Displays
Lockout" when limited range is activated and locked.
Displays only "Temperature Limit" when limited range
is activated.
2
Indicates period of day being programmed.
3
RUN SCHEDULE (run program) key.
SET TIME key or HOLD temperature key.
4
Displays "Change Filter"/"Change Pad"/"Change UV
Lamp" when the system has run for the programmed
fi lter/humidity pad/UV lamp time period as a reminder
to change or clean your fi lter/humidity pad or to replace
UV lamp.
COPY key or INSTALLER CONFIG key.
CLEAN DISPLAY key allows 30 seconds to wipe off
the display or ADVANCE DAY key for programming.
Used in programming to set time and in confi guration
menu to change selections.
"Hold Until" indicates the time when a temporary hold
period will end.
"Hours" and "Days" displays during steps in installer
confi guration.
The words "Hold At" are displayed when the
thermostat is in the HOLD mode. "Temporary Hold
At" is displayed when the thermostat is in a temporary
HOLD mode.
"Humidity" indicates that the "Set At" display is Hu-
midity setpoint.
"System On" indicates when heating or cooling stage
is energized. "+2" indicates when a second stage is
energized.
"Copy" indicates the copy program feature is being
used during programming.
and "Temperature Limit" and "Keypad
Indicates when
thermostat is calling
for Heat or Cool
18
14
13
15
19
20
Set Temperature/Humidity
Temperature
UP/Down used for
modifying setpoint
as well as to
navigating the menus
Press to view
Humidity setpoint
Menu key for entering
different modes such as
Cleaning, Configuration, Set
Battery Level Indicator
Time and Set Schedule
Indicating the current power level
of the 2 “AA” batteries.
Full power remaining.
Half power remaining.
Change The batteries should be replaced at this time.
Figure 9 – Programming & Confi guration Items
1617
123456789
1
011
1112
10
1
1
1
1
1
171
516
3
2
4
2
2
222
2
2
021
8
9
272
3
6
5
4
82930
3
3
323
373
1
6
33435
839
9
8
1
20
3
19
7
6
4
5
A steady "Cool Savings" display indicates the feature
is enabled in the installer menu. A fl ashing "CoolSavings" display indicates the feature is active.
"Remote" indicates that the indoor remote temperature
sensor, is being accessed. "Outdoor Remote" indicates the outdoor remote temperature sensor is being
accessed.
Display time, remote temperature or humidity.
"Heat Pump" displays when the system confi guration
is set in HP1/HP2.
"Call for Service" indicates a fault in the heating/cooling
systems. It does not indicate a fault in the thermostat.
Auto Schedule key for Auto Schedule function or
Humidity key to display current Humidity and Humidity
setpoint.
2
5
Page 6
INSTALLER/CONFIGURATION MENU
To enter the menu: Press the Menu touch key. Press and hold for 5 seconds the Installer Confi g touch key. This displays
menu item #1 in the table below. Press
or
to change a menu item option.
Menu
Reference
Number
Program-
mable
Non-
Program-
Press
key
mable
111MS 2HP 1, HP 2, SS 1Selects Multi-Stage (MS2, No Heat Pump), Heat Pump 1
Cr/AU, Em (FA)SLSelects Adjustable Anticipation, cycle rate auxiliary, (This item is
CL (OFF) OnSelects Compressor Lockout.
dL (On)OFFSelects Continuous Display backlight.
dL (LO)HISelects Backlight Intensity.
0
(Temperature)
°F°C
b (On)OFFSelects audible Beeper On/Off.
dS (On)OFFSelects Daylight Saving Time calculation.
AS, Cool (On)OFFSelects Automatic Schedule for comfort temperature Programming,
CS, (OFF) OnSelects Cool Savings Feature On of Off.
CS Cool Savings
(3)
CO (Off)OnSelect Compressor Optimization (not available on earlier models)
OFF,
Keypad Lockout
000001-999Selects Keypad Lockout Combination (active only if keypad Lockout
FS, Heat (On)OFFFast second stage of heat (not available if SS1 is selected above).
Remote (OFF)OnRemote temperature sensor, enable/disable.
In, RemoteOutdoor RemoteRemote temperature sensor (Indoor/Outdoor).
LS (On)OFFLocal temp. Sensor enable/disable (only when Indoor Remote is
dF (OFF)OnSelects Dual Fuel feature using software logic On or OFF (This item
dF (05)0-09Selects Dual Fuel setpoint (°F) with no outdoor sensor.
Cd (60)0-99Selects compressor delay in seconds.
dF (OFF)OnSelects Dual Fuel feature using outdoor sensor On or OFF (This item
Press
or
to select from
listed options
Cool-Off-Heat, Heat Off,
Heat, Cool-Off, Auto Off
Cool-Off-Heat-Em,
Off-Em-Auto
OFF
5, LO to 5, HISelects Adjustable Ambient Temperature Display [range -5 (LO) to
1-2-3-4-5-6Selects amount of Cool Savings adjustment.
L (total), P (partial),
Temperature Limit
(limited temperature range)
Comments
(HP1, 1 compressor), Heat Pump 2 (HP2, 2 compressor
or 2 speed compressor), or Single Stage.
ELE setting: thermostat controls blower.
selected above.)
Programs per day.
4 = Morning, Day, Evening, Night
2 = Day, Night
System switch confi guration in non heat pump mode.
System switch confi guration, heat pump mode.
Selects Energy Management Recovery, E (with programming option on)
only to appear if HP1 or HP2 is selected above).
+5 (HI)].
Selects °F/°C Display (temperature units in Fahrenheit or Celsius).
heat mode.
cool mode.
Selects Keypad Lockout.
is selected).
above).
selected On).
appears if HP1 or HP2 is selected above and no outdoor sensor.
appears if HP1 or HP2 is selected and outdoor sensor is installed and
enabled.
6
Page 7
INSTALLER/CONFIGURATION MENU
CONFIGURATION MENU
Menu
Reference
Number
(cont.)29(cont.)26(cont.)
Program-
mable
29
303027AO (80)35-74Selects Auxiliary Heat cut out temperature. This item appears if HP1 or
313128
323229
333330Humidity
343431
353532
363633
373734OC (o)od, OFFSelects Optimum Comfort or Optimum Dehumidifi cation.
383835Change UV
393936Change Pad
404037OFF
Non-Pro-
grammable
Press
key
Displayed
Factory
(Default)
dF (35)5-50Selects Dual Fuel setpoint (°F) with outdoor sensor available.
Cd (60)0-99Selects compressor delay in seconds.
bP (80)79-20Selects Blower balance point. Selection of 80 disables this feature. This
Hd (OFF)OnSelects Humidity Display alternate with time.
H1, OD
HR (OFF)LO, HISelects Auto Humidity reduction.
AH (OFF)H, C, ASelects Automatic Humidifi cation.
CH (OFF)OnSelects Cycle Humidifi er.
Lamp (OFF)
350 Days25-1975Change UV Lamp duration days.
(OFF)
1000 Hrs25-1975Change Humidifi er Pad duration hours.
Change Filter
200 Hrs25-1975Change Filter duration hours.
Press
or
to select from
listed options
-20-20
-18
OnSelects Change UV Lamp feature.
OnSelects Change Humidifi er Pad feature.
OnSelects Change Filter feature.
Comments
HP2 is selected and outdoor sensor is installed and enabled.
item appears if HP1 or HP2 is selected and outdoor sensor is installed
and enabled.
Selects Humidity Display adjustment.
1. This control can be confi gured for:
MS2 – Multi-Stage System (2 heat/2 cool)
HP1 – Heat Pump with one stage of compressor (2
heat/1 cool)
HP2 – Heat Pump with two stage compressor or two
compressor system, Gas or Electric backup; (Dual Fuel
see menu item 28) (4 heat/2 cool)
SS1 – Single Stage System (3 wire zone see wiring
diagrams.
2. GAS or Electric (ELE) fan operation. If the heating
system requires the thermostat to energize the fan, select
ELE. Select GAS if the heating system energizes the
fan on a call for heat. Note: Resetting the thermostat
switches the option to GAS.
3. O/B Terminal selection – Selects the operation of the
reversing valve (when item 1 is set to HP1 or HP2 only).
When set to "O" the changeover valve will be energized
in COOL to accommodate the majority of heat applica-
tions. If the heat pump requires the changeover valve to
energize in HEAT, select "B".
4. Programs per week – This control can be confi gured for
7 independent day or 5/1/1 day programming or nonpro-
grammable modes. Default is 7-day mode. The display
indicates "7 Days" as default. Other options "5 Days" or
"0 Days" can be selected. If "0 Days" is selected for non-
programmable mode, the step for EMR will be skipped, as
this feature will not be available in this mode.
5. Program Steps per day – This control can be confi gured
for 4 or 2 program steps per day. Default is "4 PS" and
can be toggled between 4 PS and 2 PS.
6. System Switch Confi guration (MS2/SS1) – This ther-
mostat is confi gured for Heat and Cool with Auto change-
over default (Cool-Off-Heat-Auto). It can be confi gured as
Heat & Cool (Cool-Off-Heat), or Heat Only (Off-Heat), or
Cool Only (Cool-Off).
When the control is in heat pump confi guration (HP1/ HP2), the system switch confi guration will have an
additional mode available namely, Em for Emergency
Mode.
7. Energy Management Recovery (EMR) – (this step is
skipped if confi gured as non-programmable). When set
to "On" causes the thermostat to start heating or cooling
early to make the building temperature reach the program
setpoint at the time you specify.
Example: The heating program is 65°F at night and 70°
at 7 AM. If the building temperature is 65°F, the difference
is 5°F. Allowing 5 minutes per °F rise, the thermostat setpoint will change to 70° at 6:35 AM. Cooling allows more
time per °F, because it takes longer to reach temperature.
is fast cycle (FA Cr) in all modes (Heat, Cool, Em). To
change to slow cycling (SL, Cr), press touch keys
or
toggle between FA & SL. The cycle rates are below:
Mode Fast rate Slow rate
Heat 0.6°F 1.2°F
Cool 1.2°F 1.7°F
Em 1.2°F 1.7°F
11. Select Compressor Lockout (CL) – 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 of the newer compressors have
a time delay built in and do not require this feature to be
activated in the thermostat. Your compressor manufacturer can tell you if this lockout feature is already present in
their system. When the thermostat compressor time delay
is activated, it will fl ash the set point for up to fi ve minutes.
7
Page 8
INSTALLER/CONFIGURATION MENU
12. Select Continuous Backlight – In low lighting conditions, display backlight improves the display contrast.
When C terminal is connected, selecting dL On will turn
the backlight on continuously. Selecting dL Off will turn
the backlight on momentarily after any key is pressed.
When C terminal is not powered (battery only), dL On
enables the momentary backlight whenever a key is
pressed.
13. Select Backlight Intensity – This thermostat has the
ability to provide two selectable intensities of the backlight: HI and LO. You can toggle the selection between HI
and LO.
14. Select Temperature Display Adjustment 5 LO to 5 HI
This allows you to adjust the room temperature display
by -5°F to +5°F in 1° steps. Your thermostat was accurately calibrated at the factory, however you have the
option to change the display temperature value to match
the previous thermostat, if you so prefer.
15. Select °F or °C Readout – Changes the display readout
to Celsius or Fahrenheit as required.
16. Select Audio Prompting (Beeper) On or Off – Factory
default setting is b, On. If you wish to turn off the beeper
select OFF.
17. Select Daylight Saving Time Calculation – This feature
will allow the thermostat to calculate the DST automatically and apply it to the Real Time Clock display. Default
is On.
18 & 19. Select Automatic Schedule – This feature allows
programming a “Comfort Temperature” into all program
periods with the Auto Schedule key. When Heat AS
(for Heat mode) or Cool AS (for Cool mode) is selected
On, the Auto Schedule feature is ready to be set. Off
indicates that the feature is not ready to be used or a
“Comfort Temperature" is already set. See Auto Schedule
in Programming section.
20. Select Cool Savings™: Cool Savings allows you to
select a temperature offset (from 1-6 degrees). When
the compressor runs for long periods, the thermostat will
internally slowly/gradually adjust the room temperature
display lower, subtracting a maximum of the number of
degrees you select.
This energy saving feature is based on the principal that
long compressor run times lower indoor humidity and
make a slightly higher temperature feel comfortable.
Cool Savings operates only when the compressor runs
20 minutes or longer, normally on the hottest summer
days. When Cool Savings is operating the thermostat will
fl ash "Cool Savings" to indicate it is slowly adjusting the
display temperature lower.
21. Compressor Optimization – (Not available on earlier
models) CO provides a delay in circulator fan operation
after the compressor turns on or off. With CO selected
ON, when the compressor turns on (for a call for heat
in heat pump or a call for cool) the fan will be delayed
for fi ve seconds before turning on to allow the air to be
heated or cooled. After the compressor turns off for call
for cool, the fan will continue to run for 20 seconds to
capture additional cooling from the system. If CO is set to
OFF, there will be no delay in fan operation.
22. Heat Temperature Limit Range – This feature adjusts
the highest setpoint temperature for heat. The default set-
ting is 99°F. It can be changed to a setting between 62°F
and 98°F. The "temperature limit" icon will be displayed
to the left of your setpoint temperature when using this
feature. The "temperature limit" icon will fl ash if an
attempt is made to adjust the temperature beyond the
range selected.
23. Cool Temperature Limit Range – This feature adjusts
the lowest setpoint temperature for cool. The default
setting is 45°F. It can be changed to a setting between
46°F and 82°F. The "temperature limit" icon will be displayed to the left of your setpoint temperature when using
this feature. The "temperature limit" icon will fl ash if an
attempt is made to adjust the temperature beyond the
range selected.
24. 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 Lock-
ing the temperature limits in the Confi guration Menu.
After the type of lockout is selected, press
Keypad Lockout Combination Number Selection
Display will read "000" "Keypad Lockout".
Skip this step and continue through the remainder of the
confi guration menu if you require an Air Filter Change
out indicator or Humidifi er 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
combination number. Note: "000" is not a valid combination choice.
Record the number you select for future use.
Press
will start in 10 seconds. The system key will remain active
for 10 seconds to allow setting Heat, Off, Cool or Auto.
To unlock the keypad, press Menu, then press Installer
Confi g. Display will show "000" and keypad lock. Enter
the code used to lock the keypad and press
25 & 26. Select Fast Second Stage, ON or OFF – Selecting
FA ON forces additional heat stages to come on quickly
when
above the room. Select this setting if you want the heat to
increase quickly when you manually raise the temperature.
Selecting FA OFF allows the thermostat to calculate an
optimal time to bring on additional stages of heat. When
the
perature additional heat stages may come on very quickly
or very slowly (up to 30 minutes later) depending on
recent system performance. Select this setting if you do
not require the additional heat stages to come on quickly
or keys to select the lockout desired.
or keys to operate within your
.
key to advance.
or keys to select your keypad lockout
to exit the menu. The security feature you select
is used to raise the temperature a few degrees
is used to raise the setting above the room tem-
to
.
8
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INSTALLER/CONFIGURATION MENU
when you manually raise the setting and want to allow the
thermostat to stage based on recent system performance.
The Fast Cool feature operates the cooling stages in the
same manner as Fast Heat, On or Off when the temperature is lowered below the room setting.
27. Select Remote Temperature Sensor – Allows one
wired remote temperature sensor (indoor, F145-1328, or
outdoor, F145-1378) be connected to it and indicates the
measured temperature in clock digits. This item allows
you to select the remote sensor and also confi gure it as
indoor or outdoor temperature sensor. Factory default
is off. Select Remote On and Remote in (for indoor) or
Outdoor Remote.
Local Temperature Sensor disable – This is applicable
only when indoor remote temperature sensor is enabled.
Factory default is On LS. You can make it Off LS if desired by using
or touch keys. Then, only the indoor
remote temperature reading will be used for control.
28. Select Dual Fuel Feature With No Outdoor Sensor (dF) – This feature is applicable only in heat pump modes
and with no outdoor sensor. When selected ON, the
thermostat will use software logic to determine when to
switch to gas heat and shut down the compressor.
Select DF setting (dF) – With DF selected On and no
outdoor sensor, select the dF setting from 01-09. Factory default is 05. The dF setting infl uences when second
stage comes on. The factory default creates a separation
of approximately 1
o
F between stages. Increasing the setting decreases the separation between stages. Decreasing the value increases stage separation. This adjustment allows a small change in the operation of your heat
pump system versus your auxiliary system relative to the
thermostat adjustment. The higher the number the sooner
the auxiliary stage energizes. The lower the number the
longer period of time before auxiliary is energized.
Note: This setting is not minutes or degrees. It is numeric
setting that will infl uence the internal thermostat calculation for staging.
Select Compressor Delay (Cd) – After the auxiliary heat
is turned on, the compressor(s) shut down is delayed for
the time selected (in seconds). This delay is factory set to
60, but can be set in the range of 0 to 99.
29. Select Dual Fuel Feature Using Outdoor Sensor (dF)
– This feature is applicable only in heat pump modes and
with an outdoor sensor installed and enabled in step 27.
When selected ON, the thermostat will use the outdoor
sensor temperature to determine when to switch to gas
heat and shut down the compressor.
Select DF setting (dF) – With DF selected ON, select the
setting for outdoor temperature. When the outdoor temperature goes below the selected temperature, the gas
heat will begin. Default is 35°, but can be set in the range
of 5° to 50°.
Select Compressor Delay (Cd) – After the auxiliary heat
is turned on, the compressor(s) shut down is delayed for
the time selected (in seconds). This delay is factory set to
60, but can be set in the range of 0 to 99.
30. Select Auxiliary Off (AO) – Select the temperature that
will inhibit the auxiliary heating stage. As long as the outdoor temperature is above the selected temperature, the
auxiliary heat will not turn on. The default setting is 60°,
but can be set in the range of 35
° to 80°.
31. Select Programmable Blower Balance Point (bP) – Re-
quires DHM connection from thermostat to heat pump
system. This feature de-energizes the DHM terminal to
operate the blower at a slower speed for fi rst stage heat
when the outdoor temperature is below the temperature
selected. This circulates warmer air than the higher fan
speed. The default is 80
o
(disabled), but can be set from
20o to 79o. Select an outdoor temperature where the air
coming out of the ducts begins to feel cool and the thermostat will lower the fan speed to circulate warmer air.
32. Humidity Display (Hd) – Selecting HD On enables the
display to alternately show the current time and the humidity. If HD is selected OFF, the display will not show the
humidity.
33. Adjustable Humidity Display – The display will show
the ambient humidity and 00 (default). The setting can
be changed from -20 and LO to 20 and HI. The displayed
humidity will change as the offset is changed. In Run
mode, the displayed humidity will be the ambient humidity
adjusted by the setting selected.
34. Auto Humidity Reduction (HR) – This feature au-
tomatically lowers humidity setting when the outside
temperature drops to prevent the interior windows/walls
from reaching the dew point where water condenses on
surfaces. This feature default is OFF. It can be changed
to select LO (low humidity reduction) or HI. To achieve
automatic humidity reduction, the thermostat lowers the
humidity when furnace cycles are long. When the outside
temperature rises, it increases humidity. "LO" indicates a
low amount of humidity reduction.
35. Automatic Humidifi cation (AH) – This feature if enabled
allows for humidifi cation independent of a call for heating
– useful in arid climates where addition humidifi cation in
heating and/or cooling is desired. If enabled, will energize
the humidifi er and circulator blower (“G” terminal and the “HM” terminal) if the actual humidity is below the humidity set point. The display indicates AH. Pressing the
key will cycle the display from OFF to H (feature enabled
in Heat mode) to C (feature enabled in Cool mode) to A
(feature enabled to Auto mode) and back to OFF.
36. Cycle Humidifi er (CH) – This feature provides an op-
tion that reduces the water usage by up to 50% when a
fl ow-through humidifi er is controlled by the thermostat. It
is recommended for use on fl ow-through humidifi ers only.
The display indicates CH (Cycle Humidifi er) with the default indicating OFF. Pressing the
or keys will toggle
the display from OFF to On and back to OFF. When CH is
enabled, the humidifi er will cycle to turn off for 10 minutes
after it has run for 10 minutes. The blower and/or furnace
will continue to run during the humidifi er off period.
37. Programmable Dehumidifi cation Optimal Comfort Mode (OC) or Optimal Dehumidifi cation (Od) – This
item can be selected to OC (Optimal Comfort mode), Od
(Optimal Dehumidifi cation), or OFF. When Optimal Comfort (OC) is enabled, this feature automatically reduces
indoor humidity with a call for Cooling if humidity is 2%
above humidity setpoint. Humidity is set by pressing the
Humidity key when in the appropriate mode, in this case
Cooling, and pressing the
or keys to set desired
humidity (range 40% to 95%) level followed by pressing
Humidity key again. This dehumidifi cation feature uses
less energy by maintaining temperature and dehumidifying only when a call for Cooling is required. Optimal Dehumidifi cation (Od) when enabled, this feature automati-
9
Page 10
INSTALLER/CONFIGURATION MENU
cally reduces indoor humidity with a call for Cooling if
humidity is 2% above setting. Humidity is set by pressing
the HUMIDITY key when in the appropriate mode, in
this case Cooling, and pressing the
desired humidity level followed by pressing Humidity key
again. This dehumidifi cation feature may use more energy
by making dehumidifi cation a priority initiating a call for
cooling if humidity is 2% above desired setting. This
feature may also over-cool the condition space by up to 3
degrees to achieve the desired humidity level. (Note: Both
dehumidifi cation modes operate in Cooling mode only
with a call for cooling)
38. Change UV Lamp – This feature allows the thermostat to
display the words "Change UV Lamp" (Call for Service
of UV bulb) after a set time of UV bulb operation. This is
a reminder to maintain your UV system at optimum level
of operation. When enabled, the factory set interval for
"Change UV Lamp" to be displayed is 350 days of UV
bulb operation and can be adjusted in 25 day increments.
This should be adjusted with respect to the bulb’s recommended maintenance schedule.
or keys to set
OPERATING YOUR THERMOSTAT
Check Thermostat Operation
NOTE
To prevent static discharge problems, touch side of
thermostat to release static build-up before touching
any keys.
If at any time during testing your system does not operate
properly, contact a qualifi ed service person.
Fan Operation
If your system does not have a G terminal connection, skip to
Heating System.
1. Turn on power to system.
2. Press FAN key to ON position. The blower should begin
to operate.
3. Press FAN key to AUTO position. The blower should
stop immediately.
CAUTION
!
Do not allow the compressor to run unless the compressor oil heaters have been operational for 6 hours
and the system has not been operational for at least
5 minutes.
Heating/Humidifi er
1. Press SYSTEM key to select HEAT. If the auxiliary heating
system has a standing pilot, be sure to light it.
2. Press
temperature. The heat pump system should begin to operate. The display should show "System On". However, if
the system confi guration is set to HP1 or HP2 and setpoint
temperature display is fl ashing, the 5 minute compressor
lockout feature is operating (see Confi guration menu, item
11).
to adjust thermostat setting to 1° above the room
When "Change UV Lamp" is displayed, you can clear it
by pressing Clean Display.
39. Change Humidifi er Pad – This feature allows the thermo-
stat to display the words "Change Pad" after a set time
of humidifi er operation. This is a reminder to maintain or
clean your humidifi er. The factory set interval for "ChangePad" to be displayed is 200 hours of humidifi er operation.
This should be adjusted with respect to the humidifi er’s
recommended maintenance schedule.
When "Change Pad" is displayed, you can clear it by
pressing Clean Display.
40. Select Change Filter Run Time – This feature allows
thermostat to display "Change Filter" after a set time of
blower operation. This is a reminder to change or clean
your air fi lter. 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 approximately 30 days.
3. Adjust temperature setting to 3° above room temperature.
If your system configuration is set at MS2, HP1 or HP2,
the auxiliary heat system should begin to operate and the
display will show "System On +2".
4. Press
ture. The heating system should stop operating.
To check the humidifi er when System On appears and the
heating system is running press the *HUMIDITY button once.
Press
humidity level. Hum On will appear indicating it is calling for
the humidifi er.
*Note: If Auto Schedule is displayed instead of Humidity, Auto
Schedule must be turned off in the Confi guration Menu.
to adjust the thermostat below room tempera-
to adjust the humidity 2% or more above the room
Emergency Mode
Applies only to Heat Pump Systems
Emergency Heat (System EM Position) bypasses the Heat
Pump to use the heat source wired to terminal W/E, W2 on
the thermostat. EM is typically used when compressor operation is not desired, or you prefer back-up heat only.
1. Press SYSTEM key to select EM. “EM Heat Mode” will
fl ash on the display.
2. Press
perature. The Emergency heating system will begin to
operate. The display will show “System On” fl ashing “EM Heat Mode” and “Heat” to indicate that the Emergency system is operating.
3. Adjust temperature setting to 3° above room temperature.
Any additional stages of auxiliary heat should begin to
operate and the display will show "System On +2".
4. Press
ture. The heating system should stop operating.
To prevent compressor and/or property damage, if the
outdoor temperature is below 50°F, DO NOT operate
the cooling system.
to adjust thermostat setting above room tem-
to adjust the thermostat below room tempera-
CAUTION
!
10
Page 11
OPERATING YOUR THERMOSTAT
Cooling/Dehumidifi er
1. Press SYSTEM to select "Cool".
2. Press to adjust the thermostat setting below room temperature. The blower should come on immediately on high
speed, followed by cold air circulation. The display should
show "System On". If the setpoint temperature display is
fl ashing, the compressor lockout feature is operating (see
Confi guration menu, item 5).
3. Adjust temperature setting to 3° below room temperature.
The second stage cooling should begin to operate and the
display should show "System On +2".
4. Press
temperature. The cooling system should stop operating.
To check the dehumidifi er when System On appears and
the cooling system is running press *HUMIDITY button once.
Press
humidity level. DeHum On will appear indicating it is calling
for the dehumidifi cation.
If the room humidity is lower than the adjustment range, press
to 40% and hold it for four seconds. This will force the
DeHum On for one complete cooling cycle to test the dehumidifi cation equipment.
After adjusting the humidity setting the display will return to
temperature in approximately 10 seconds. To switch the display back to temperature immediately after adjusting humidity
setting press HUMIDITY again.
*Note: If Auto Schedule is displayed instead of Humidity, Auto
Schedule must be turned off in the Confi guration Menu.
to adjust the temperature setting above room
to adjust the humidity 2% or more below the room
Choose the Fan Setting (Auto or On or Prog)
There are three fan features on the 1F95-1291:
1. Fan Auto/On – Traditional Fan Settings
Press Fan to select Auto or On. The most commonly
used setting is Auto. Fan Auto runs the fan only when
the heating or cooling system is operating. Selecting Fan
On runs the fan continuously for increased air circulation
or to allow additional air cleaning if the system is equipped
with an Electronic Air Cleaner.
2. FAN Prog – Comfort Circulating Fan Feature
Pressing FAN until FAN Prog appears activates the Com-
fort Circulating Fan Option. This causes the thermostat to
cycle the fan on for 10 minutes and off for 20 minutes if the
thermostat has not called for heat or cool during the past
60 minutes. This assures moderate air circulation even
when the heating and cooling equipment is not cycling.
3. FAN On Prog. – Programmable FanFAN OnProg indicates that a time period has FAN Prog
selected in the Set Schedule mode (see Programmable
Fan Option). The fan will run continuously through the pe-
riod until the next period begins. To override FAN On Prog,
press the FAN key to select Auto for the fan to run only
when the heating or cooling system is operating.
Tip: Running the fan more frequently will increase your
energy consumption. Most systems use a 1/2 or 1/3 HP
electric motor to power the fan.
Choose the System Setting
(Cool, Off, Heat, Em, Auto)
Press the SYSTEM key to select:
Cool: Thermostat controls only the cooling system.
Off: Heating and Cooling systems are off.
Heat: Thermostat controls only the heating system.
Em: Setting is available only when the thermostat is confi g-
ured in HP1 or HP2 mode.
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.
Manual Operation for
Non-Programmable Mode
Press the SYSTEM key to select "Heat" or "Cool" and use
the keys to adjust the temperature to your desired setting.
After selecting your desired settings you can also press the
SYSTEM key to select AUTO to allow the thermostat to automatically change between "Heat" and "Cool".
Manual Operation (Bypassing the Program)
Programmable Mode
Manual operation will bypass the program and allow you to
adjust the temperature as you desire. The temperature you
set in Hold will be maintained indefi nitely. Press
adjust the temperature. The HOLD key will appear. Press the
HOLD key. "Hold At" will appear next to the setpoint temperature and the thermostat will maintain the new setpoint
temperature until Run Schedule is pressed to resume program operation.
or to
Program Override (Temporary Override)
Press or keys to adjust the temperature. This will override the temperature setting for a (default) four hour override
period. The override period can be shortened by pressing
or lengthened by pressing
range from 15 minutes to 7 days.
Example: If you turn up the heat during the morning program,
it will be automatically lowered later, when the temporary hold
period ends. To cancel the temporary setting at any time and
return to the program, press Run Schedule.
If the SYSTEM key 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 keys
simultaneously to change to the other mode.
. Program Override period can
11
Page 12
PROGRAMMING
Set Current Time and Day
1. Press Menu key to enter installer menu. Then press
Set Time once to indicate hour & AM or PM designation
in clock display.
2. Press and hold either the
reach the correct hour and AM or PM designation.
3. Press Set Time again to display minutes only in clock
display.
4. Press and hold either the
reach the correct minutes.
5. Press Set Time once again to display year.
6. Press either the
correct year.
7. Press Set Time once again to display month.
8. Press either the
correct month.
9. Press Set Time once again to display date of the month
along with day of the week at top row (which is automatic).
10. Press and hold either the
reach the correct day of the month and day of the week
displayed at the top row.
11. Press Run Schedule once or twice to remove the key.
Now the display will show the correct time and room temperature.
or touch key until you reach the
or touch key until you reach the
or touch key until you
or touch keys until you
or touch key until you
Automatic Daylight Saving Calculation
The Real Time Clock will adjust automatically for daylight savings time, in the following manner:
Increment one hour at 2 AM on the second Sunday of March
and decrement one hour at 2 AM on the fi rst Sunday of November. (New DST effective 2007).
The daylight saving feature can be enabled or disabled in
installer confi guration menu. Default is DS ON (enabled).
After entering installer confi guration mode, momentarily
press touch key until the display indicates dS (in actual temperature digits) and on (default – in clock digits).
keys will toggle display and operation from on to OFF.
and
Programming Tip: Copy Program
When programming your thermostat, you may copy the program from one day to another day or group of days using the
Copy key. In 7 day programming mode, a day can be copied
to another day or all six other days. In 5/1/1 day programming
mode the weekday (Mon – Fri) program can be copied into
Sat and Sun or either Sat or Sun.
To copy a program from one day to another:
1. In Set Schedule mode, enter the program for the day or
select the day you wish to copy by pressing Advance Day.
2. Press Copy. The display will show “Copy” next to the
SYSTEM key and the day of the week that will be copied.
3. Press Advance Day. The day being copied will be indi-
cated and the other days will be fl ashing.
4. If you wish to copy to all days skip to next step or press
Advance Day until the day you wish to copy to is fl ashing.
5. Press Copy. “Copy” will disappear, the day you copied
from will disappear and the day(s) you copied to will be on.
6. If you wish to copy this same program into other days,
press Copy and repeat steps 3, 4 and 5.
7. Press Run Schedule to return to normal operation.
Fill in the blank schedule on the next page then:
Enter the Heating Program
1. Press the Menu key and then press Set Schedule. Press
SYSTEM key to select "Heat" 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
The time will change in 15 minute increments.
5. Press FAN to select Auto or Prog.
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 program 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
or key to adjust the start time for period.
Enter the Cooling Program
1. Press the SYSTEM key until the "Cool" icon appears.
2. Follow Enter Heating Program instructions for entering
cooling times and temperatures.
Automatic Schedule
Auto Schedule Heat is a fast way to program all the heating
temperatures during the day to a comfortable temperature
and then lower the temperature 6° at night. Auto Schedule
Cool will program all of the cooling time periods to the same
temperature.
Note: Auto Schedule is available only when the thermostat
is fi rst powered on, after the thermostat has been reset, or
anytime you turn AS on in the Confi guration Menu (item 18
AS Heat or 19 AS Cool). After use in heating and cooling,
Auto Schedule on the display will change to Humidity.
Heating Example:
1. In Heat mode, press Auto Schedule once.
2. Press
ture (example 72°).
3. Press Auto Schedule again. Your thermostat is now pro-
grammed for 72° from 6:30 AM until 10:30 PM at 72°. At
10:30 PM, your thermostat will set back 6° to 66°.
Your heating program for each day of the week will look like
this:
6:30 72°
8:00 72°
5:00 72°
10:30 66°
or to select a comfortable day time tempera-
12
Page 13
PROGRAMMING
Cooling Example:
1. In cool, press Auto Schedule once.
2. Press
ture (example 75°).
3. Press Auto Schedule again. Your thermostat is now pro-
grammed for 75° for all cooling time periods.
Your cooling program for each day of the week will look like
this:
6:30 75°
8:00 75°
5:00 75°
10:30 75°
or to select a comfortable cooling tempera-
Programmable Fan Option
In the Set Schedule (programming mode) pressing Fan will
alternate the fan setting between FAN Auto and FAN Prog.
FAN Auto runs the fan as needed with the heating or cooling.
FAN Prog programs the fan to run continuously for the heat-
ing or cooling time period you are programming.
Example: Press the SYSTEM key to select Heat.
Press the Menu key once to display Set Schedule.
Press Set Schedule once to display the 1st heating program
period. The time and temperature for this period will show on
the display. Press the FAN key until it displays FAN Prog. The
fan is now programmed to run continuously for this time period. The fan can be programmed for any or all time and temperature settings in heating and cooling. To cancel program
fan for a time period, enter the heating or cooling program
(Menu, Set Schedule) and advance to the time/temperature
period you want to cancel. Press the fan key and FAN Prog
will change to FAN Auto.
Energy Saving Factory Pre-Program
The 1F95-1291 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 RUN key.
The table below shows the factory set heating and cooling schedule for all days of the week.
* Wake Up
(Morning)
Leave For Work
(Day)
* Return Home
(Evening)
Go To Bed
(Night)
Heating Program
Cooling Program
* You can eliminate these two program periods in the confi guration menu (reference #5) if the building is occupied all day.
Day period will change to 6:00 AM and 70° and can be programmed as required.
6:00 AM70°F8:00 AM62°F5:00 PM70°F10:00 PM62°F
6:00 AM75°F8:00 AM83°F5:00 PM75°F10:00 PM78°F
Planning Your Program – Important
The Heating and Cooling Program schedules below allow you to pencil in your own program times and temperatures.
The 1F95-1291 comes confi gured for 7 day programming and can also be confi gured for 5+1+1 programming (see confi guration section).
Factory settings are listed on Monday, Saturday and Sunday. If you are re-programming a 5+1+1 day schedule, pencil in your
own times and temperatures directly below the factory times and temperatures.
If you are re-programming a 7 day schedule, fi ll in all lines with the times and temperatures you want.
Keep the following guidelines in mind when planning your program.
• In Heating, lower temperatures will save energy.
• In Cooling, higher temperatures will save energy.
• If you plan on using Auto Changeover, do not program the heating temperature higher than the cooling temperature.
13
Page 14
PROGRAMMING
Worksheet for Re-Programming 5+1+1 and 7 Day Program
One remote temperature sensor can be installed indoor or
outdoor and connected to the thermostat by a maximum
cable length of 100 meters (300 feet). Terminals +, S and - on
the terminal block allow connection of the remote sensor.
The thermostat must have 24 VAC Common connection to
terminal C for the remote sensor to operate. The remote sensor can be enabled or disabled in the Installer/Confi guration
menu, item 27.
When remote sensor, Remote, is selected Off (factory default), no remote sensor is enabled. When remote sensor is
selected On, the next step is to select the remote as indoor,
Remote In, or outdoor, Remote Outdoor. If the remote is selected as Remote In, an additional step will be to select if the
temperature shown on the display will be from the thermostat,
LS On, or the remote sensor LS Off.
In normal operation, when a remote sensor is enabled the
time digits of the display will alternate between the time and
the remote temperature for three seconds each. Above the
remote temperature will be Remote, for indoor sensor or
Outdoor Remote, for outdoor sensor. If the remote sensor is
an indoor sensor and the local display has been disabled, the
temperature displayed as the room temperature will be the
remote sensor temperature.
Sensing Range:
Outdoor temperature range is -40
Indoor temperature range is 32
o
F to 140oF
o
F to 99 oF
Averaging or Weighting Remote Sensors
The thermostat will weight or average the temperature of the
indoor remote sensor with the local sensor in the thermostat
for each program period. The averaging will be active only
when the local sensor and the indoor remote sensor are both
functional and enabled in the Installer/Confi guration menu.
When the thermostat is in the Set Schedule mode, the weight
of the indoor sensor will be shown in the current temperature
digits of the display. The weight will show as A2 (average and
default), H4 (high) or L1 (low). Pressing the and keys at
the same time will change the weight for the program period.
The weight of the thermostat sensor is fi xed.
In normal operation of the thermostat, the current temperature displayed will be the weighted average of the local
sensor and the remote sensor using the formula (local sensor
weight x local sensor temperature) + (remote sensor weight x
remote sensor temperature) / (local sensor weight + remote
sensor weight).
Example: Local sensor temperature is 80° and the remote
sensor is 70°.
If weight is selected H4, the averaged temperature of 72° will
be displayed.
(1 x 80) + (4 x 70) / 5 = 72°
If weight is selected A2, the average temperature of 73° will
be displayed.
(1 x 80) + (2 x 70) / 3 = 73.3°
If weight is selected L1, the average temperature of 75° will
be displayed.
(1 x 80) + (1 x 70) / 2 = 75°
The example shows that the weight selected would prioritize
the overall averaged temperature between the two sensors.
The high weight selection caused the remote sensor to have
a higher infl uence in the calculated temperature average than
the local sensor and the low weight selection caused the
remote sensor to have less infl uence.
Dual Fuel Temperature Setpoint
When the thermostat is confi gured for Heat Pump mode and
the Dual Fuel feature is selected on, the thermostat can monitor the outside temperature using remote sensor F145-1378
or use software logic to determine when to switch to gas heat
and shut down the compressor. This eliminates the need for a
fossil fuel kit.
The user selectable temperature is called the dual fuel temperature setpoint, dF and is set in the Installer/Confi guration
menu, items 28 or 29. With outdoor remote sensor installed
and enabled, the dual fuel temperature setpoint (menu item
29) can be set to a temperature of 5° through 50°. When
outdoor remote sensor is not installed, a software logic
based dual fuel number (menu item 28) from 01 to 09 can be
selected.
After the dual fuel temperature setpoint is set and
pressed, a delay, Cd, can be set for compressor shutdown
after the auxiliary stage is energized. This delay can be set
from 0 seconds to 99 seconds to minimize the time that the
system may blow cooler air until the alternate source of heat
comes on. Default setting for delay is 60. When setting the
delay, if the or keys are held depressed, the setpoint
will increase or decrease at the rate of one degree every half
second for the fi rst three seconds and double the speed after
three seconds.
is
Blower Balance Point for Heating
Requires DHM connection from thermostat to heat pump
system. Air to air heat pumps use a fast fan speed to circulate warm air for fi rst stage heating. As outdoor temperatures
drop, the heat pump produces less heat and a high fan speed
makes the air from the ducts feel cooler. Blower Balance Point
allows you to select an outdoor temperature to slow the fan
speed so the air from the duct feels warmer. Select an outdoor temperature where the air from the ducts starts to feel
cool (Installer Confi guration Menu item 31). When the outdoor
temperature drops to the selected temperature, the thermostat will slow the fan speed so the outlet air feels warmer.
15
Page 16
TROUBLESHOOTING
Reset Operation
Note: When thermostat is reset, installer confi guration 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 confi guration menu settings.
To reset the programming, clock and confi guration settings, press the and and SYSTEM keys simultaneously. The thermostat should go blank and then all segments will be displayed momentarily.
1. The location of the thermostat and/or
the size of the Heating System may
be infl uencing the cycle rate.
1. Voltage Spike or static dischargeUse the Reset Operation shown above.
Replace fuse or reset breaker.
Turn switch to ON.
Replace door panel in proper position to engage safety
interlock or door switch.
Tighten connections.
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 fi ve 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.
The thermometer can be adjusted +/- 4 degrees. See
Temperature Display Adjustment in the Confi guration
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
Confi guration menu, step 7 (heat) or 8 (cool). If an acceptable cycle rate is not achieved, contact a local HVAC
service person for additional suggestions.
Press the menu
20 seconds. This unlocks the thermostat.
key (key will disappear) and hold in for
White-Rodgers is a division
of Emerson Electric Co.
The Emerson logo is a
trademark and service mark
of Emerson Electric Co.
HOMEOWNER HELP LINE: 1-800-284-2925
www.white-rodgers.com
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