Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLY BEFORE INSTALLING OR OPERATING THIS
CONTROL COULD CAUSE PERSONAL INJURY AND/OR
PROPERTY DAMAGE.
APPLICATIONS
Blue Easy Reader Thermostat
Single Stage, Multi-Stage, Heat Pump
Installation and Operating Instructions for Model:
Model Programming Choices
1F95EZ-0671
Non-Programmable 7 Day
THERMOSTAT APPLICATION GUIDE
1F95EZ-0671 Thermostat
Thermostat
Confi guration Options
Single Stage 1
No Heat Pump (SS1)
Multi Stage 2
No Heat Pump (MS2)
Heat Pump 1
Single Stage Compressor
Heat Pump (HP1)
Heat Pump 2
Two Stage or Two
Compressor Heat Pump
(HP2)
Thermostat
Applications
Gas, Oil, Electric, Heat Only,
Cool Only or Heat/Cool
Systems, 2 or 3 wire Hydronic
Zone (Hot Water or Steam)
Systems, 24 Volt or Millivolt
Single Stage Compressor
Heat Pump Systems - up to 2
Stages Aux./Emergency Heat
Two Stage or Two Compressor
Heat Pump systems - up to 2
Stages Aux./Emergency Heat
Maximum
Stages
Heat/Cool
1/1
2/2
3/1
4/2
SPECIFICATIONS
Electrical Rating:
Battery Power. . . . . . . . . . . . . . . . . . . . . . . . . . mV to 30 VAC, NEC Class II, 50/60 Hz or DC
Input-Hardwire . . . . . . . . . . . . . . . . . . . . . . . . . 20 to 30 VAC
Terminal Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A per terminal, 2.5A maximum all terminals combined
Setpoint Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 to 99°F (7 to 32°C)
Differential (Single Stage) . . . . . . . . . . . . . . . . . . . . Heat 0.6°F; Cool 1.2°F
Differential (Multi-Stage) . . . . . . . . . . . . . . . . . . . . . Heat 0.6°F; Cool 1.2°F
Differential (Heat Pump) . . . . . . . . . . . . . . . . . . . . . Heat 1.2°F; Cool 1.2°F
Operating Ambient. . . . . . . . . . . . . . . . . . . . . . . . . . 32°F to +105°F (0 to +41°C)
Operating Humidity . . . . . . . . . . . . . . . . . . . . . . . . . 90% non-condensing max.
Shipping Temperature Range . . . . . . . . . . . . . . . . . -40 to +150°F (-40 to +65°C)
Dimensions Thermostat. . . . . . . . . . . . . . . . . . . . . . 4.2"H x 6.4"W x 1.7"D
CAUTION
!
To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
Index Page
Installation 2
Wiring Connections 2
Wiring Diagrams 3
Thermostat Quick Reference 4
Installer Confi guration Menu 5
Operating Your Thermostat 7
Troubleshooting 8
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ATTENTION: MERCURY NOTICE
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 product containing mercury.
PART NO. 37-6986A
0846
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 snug ly, 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 re sistant material (such as fi berglass insulation) to prevent
drafts from affecting thermostat operation.
Thermostat Power Method Switch 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 1F95EZ-0671
7. Carefully line the thermostat up with the base and snap
into place.
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 Switch
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
*
* A1 For Damper Control Not Applicable To This Model.
Place Level
across Mounting Tabs
(for appearance only)
Mounting
Hole
2 "AA" Batteries
Power Stealing
Switches
WIRING CONNECTIONS
Refer to equipment manufacturers' instructions for specifi c
system wiring information. After wiring, see CONFIGURATION section for proper thermostat confi guration.
TERMINAL DESIGNATION DESCRIPTIONS
Terminal Designation Description
O/B ...............................Changeover valve for heat pump energized constantly in cooling and off/heating
Y2 ...............................2nd Stage Compressor
Y ...............................Compressor Relay
G ...............................Fan Relay
RC ...............................Power for Cooling
RH ...............................Power for Heating
C ...............................Common wire from secondary side of cooling (Optional). Required for fault indication, continuous back-
light operation or remote temperature sensor operation 6 Powered closed 3rd wire for 3-wire zone valve
W/E ................................Heat Relay/Auxiliary Heat Relay (Stage 1) (3rd Stage Heat in HP2)
W2 ............................... 2nd Stage Heat (4th Stage Heat in HP2)
L ...............................Compressor diagnostic indicator for systems with diagnostic connection typically found on Heat pump
systems or with Copeland's Comfort Alert
2
Wiring diagrams shown are for typical systems and describe
the thermostat terminal functions.
WIRING DIAGRAMS
Figure 2 – Single Stage or Multi-Stage System (No Heat Pump)
with Single Transformer
L
System
Single
Stage 1
(SS1)
MultiStage 2
(MS2)
Comfort Alert II Module
or Similar System
Diagnostic Module
See Module Instructions
for details
Diagnostic
Indicator
Input
or
System
Malfunction
Switch
Input
O/B
O
Energized Constantly
in
Cool Mode
B
Energized Constantly
in Heat, Off,
Emergency
Mode
Y
Cool Mode
1st Stage
Y2
No
Output
Cool
Mode
2nd
Stage
W/E
Heat
Mode
1st Stage
W2
No Output
Heat Mode
2nd Stage
G
Blower/
Circulator
Fan Energized
on Call for
Cool (and
Heat if
configured
for Electric
Heat)
* Common connection required for diagnostic or malfunction indication.
Figure 3 – Single Stage or Multi-Stage System (No Heat Pump)
with Two Transformers
O/B
O
Energized Constantly
in
Cool Mode
B
Energized Constantly
in Heat, Off,
Emergency
Mode
Y
Cool Mode
1st Stage
120VAC
HEATING
System
Single
Stage 1
(SS1)
MultiStage 2
(MS2)
CLASS II
TRANSFORMER
NEUTRAL
24VAC
HOT
L
Diagnostic
Indicator
(Optional)
* Common connection required for diagnostic or malfunction indication.
Y2
No
Output
Cool
Mode
2nd
Stage
W/E
Heat
Mode
1st Stage
W2
No Output
Heat Mode
2nd Stage
Jumper
RH
24 Volt
24 Volt
(Hot)
(Hot)
Heat
Cool
G
Blower/
Circulator
Fan Energized
on Call for
Cool (and
Heat if
configured
for Electric
Heat)
Single Stage, Multi-Stage and Heat
Pump Connections
Refer to equipment manufacturers' instructions
C 6
RC
Optional*
24 Volt
(Com-
mon)
NEUTRAL
24VAC
HOT
CLASS II
TRANSFORMER
Remove Jumper Wire
Jumper
between RH & RC
RH
RC
C
Optional*
24 Volt
24 Volt
(Hot)
Cool
24 Volt
(Com-
mon)
NEUTRAL
24VAC
HOT
(Hot)
Heat
for specifi c system wiring information.
This thermostat is designed to operate a
single-transformer or two-transformer system.
You can confi gure the thermostat for use with
the following systems:
SINGLE STAGE (SS 1) gas, oil or electric.
MULTI-STAGE (MS 2) gas, oil or electric.
HEAT PUMP TYPE 1 (HP 1). Single stage
120VAC
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 gura-
tion.
120VAC
COOLING
CLASS II
TRANSFORMER
Figure 4 – Heat Pump Systems
+
Y2
Heat Mode - 2nd
Stage, Emergency
Mode - 1st Stage
+
Note: Dual Fuel option
de-energizes Heat mode
stage 1 (compressor)
when auxiliary heat
Heat Mode - 3rd
Stage, Emergency
Mode - 1st Stage
+
Note: Dual Fuel option
de-energizes Heat mode
stage 1 (compressor)
when auxiliary heat
W/E
is energized
is energized
Y
O/B
System
Heat Pump 1
(HP1)
Diagnostic
Indicator
or System
Malfunction
Heat Pump 2
Switch
(HP2)
Comfort Alert II Module
or Similar System
Diagnostic Module
See Module Instructions
for details
* Common connection required for diagnostic or malfunction indication.
+
Dual Fuel option, if selected turns off compressor(s) when Auxiliary stages energize.
O
Energized in
Cool Mode
B
Energized in
Heat, Off,
Emergency
Mode
Heat and
Cool Mode
1st Stage
(Compressor)
No
Output
2nd
Stage
(Compressor)
+
W2
Heat Mode - 3rd
Stage, Emergency
Mode - 2nd Stage
+
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
de-energizes Heat mode
stage 1 (compressor)
when auxiliary heat
is energized
Blower/
Circulator Fan
Energized on
Call for Heat
or Cool.
Set Elect/Gas
Option for
Emergency
mode
Jumper
RH
G
24 Volt
24 Volt
(Hot)
(Hot)
Heat
Cool
Figure 5 – 3-Wire (SPDT) Heat Only Zone Valve Wiring
Jumper
W
Y
Opens
Valv e
(4)
G
Blower/Circulator
Fan Energized
24 Volt
(Hot)
Heat
(5)
RC
24 Volt
(Hot)
Cool
C
Constant
24 Volt
(Com-
mon)
NEUTRAL
RH
System
Single Stage
3-wire
Zone Valve
application
Closes
Valv e
(6)
6
RC
24VAC
HOT
CL6
Optional*
24 Volt
(Com-
mon)
NEUTRAL
24VAC
CLASS II
TRANSFORMER
HOT
120VAC
CLASS II
120VAC
3
THERMOSTAT QUICK REFERENCE
Home Screen Description
Figure 6 – Home Screen Display
Battery Level Indicator
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 with 2 new
premium brand “AA” Alkaline batteries.
(See page 2 for more details).
System
Indicators
Room
Temperature
Setting
Temperature
Fan
Indicator
Figure 7 – Programming & Confi guration Items
14
15
16
17
1
2 5
Programming and Confi guration Items
“Heat" “A/C” “Off” identifi es button. When fi lled indi-
1
cates system mode selected.
"Aux" inidicates thermostat confi gured for Heat Pump.
2
When fi lled indicates Auxiliary stage is operating.
3
"Adv Day" identifi es button when in schedule mode.
4
"Time" identifi es button when in schedule mode.
5
"Fan" identifi es button. When fi lled indicates Fan is on.
6
"Run" identifi es button to begin normal operation.
7
"Sched" identifi es button to be used during program-
ming or "Run Sched" identifi es button to return to
normal operation.
8
"Hold" "Copy" "Menu" identifi es button.
9
"Limit" indicates temperature is adjusted to the limit set
in the confi guration menu.
13
12
3
4
10
"Setting" indicates the setpoint temperature.
11
"Hold Temp" indicates temporary hold or "Hold" indi-
11
10
9
8
7
6
cates hold mode.
12
"Morn" "Day" "Eve" "Night" indicates period being
programmed or current program in Run mode.
13
"A" "P" indicates time as Morning (A) or Evening (P).
14
"Mon - Sun" indicates day of week.
15
"Month" "Year" "Date" indicates the Month Year or
Date when setting time.
16
"Call For Service" indicates a diagnostic fault in the
heating/cooling system. It does not inidicate a fault in the
thermostat.
17
"Change" indicates when batteries are low and should
be replaced.
4
INSTALLER/CONFIGURATION MENU
With Heat or A/C selected, press and hold the Menu button for at least 5 seconds. The display will show item #1 in the table
below. Press Menu to advance to the next menu item. Press
INSTALLER/CONFIGURATION MENU
Menu
HP SS Press
Ref.
1 1 1 MENU (MS 2) HP 1, HP 2, SS 1 Selects Multi-Stage (MS 2 No Heat Pump),
2 2 2 MENU (GAS) for SS or MS ELE GAS setting: furnace controls the blower
3 3 3 MENU E (On) OFF Selects Energy Management Recovery (EMR)
4 – 4 MENU CR Heat (ME) SL, FA Selects Adjustable Anticipation, cycle rate, Heat
5 4 – MENU CR Heat A/C
6 5 5 MENU CR A/C (ME)
7 6 6 MENU CL (OFF) CL On Compressor Lockout Time
8 7 7 MENU Heat A/C Off
9 8 8 MENU CO (OFF) CO On Selects Compressor Optimization
10 9 9 MENU dL (On) dL OFF Selects Display Light On or OFF
11 10 10 MENU 0 HI
12 11 11 MENU °F °C Selects Fahrenheit/Celsius Temperature Display
13 12 12 MENU P (0) 7 Defaults to P (0) non-programmable
14 13 13 MENU PS (2) 4 Selects Program periods per day:
15 14 – MENU Heat FA (On) OFF Fast Heat option may be disabled by
16 15 14 MENU A/C FA (On) OFF Fast Cool option may be disabled by
17 16 15 MENU dS (On) Off Selects Automatic Daylight Saving Time option
Button
Displayed
(Factory Default)
(ME)
or
CR Aux Heat (FA)
or
Aux Heat A/C Off
(current temperature)
Press
select from listed op-
Heat A/C Off,
Heat Off with Fan icon,
Heat Off without Fan icon
1 HI, 2 HI, 3HI, 4 HI,
1 LO, 2 LO, 3 LO, 4 LO
or to change a menu item options.
or to
tions
Heat Pump 1 (HP 1, 1 compressor),
Heat Pump 2 (HP 2, 2 compressor or 2 speed
compressor), or Single Stage (SS 1)
ELE setting: thermostat controls the blower
On or OFF. (Not available in -non-program-
(This item only appears when MS 2 or SS 1 is
SL, FA Selects Adjustable Compressor Anticipation
SL, FA
SL
A/C Off
(Heat Pump) This item only appears when
HP 1, HP 2 is selected above
Selects Adjustable Anticipation, cycle rate, cool
(when MS 2 or SS 1 is selected above.) or
Selects the cycle rate for Auxiliary stage (when
HP 1 or HP 2 is selected above)
System Mode Confi guration
with Automatic Changeover capability
Adjustable Ambient Temperature Display
P (7) is 7-day programming
selecting OFF. NA to SS or HP1 confi g.
selecting OFF. NA to SS or HP1 confi g.
Comments
mable mode)
selected above)
4 = Morn, Day, Eve, Night
2 = Day, Night
18 17 16 MENU HL Heat
(99)
19 18 17 MENU LL A/C
(45)
20 19 – MENU dF (0) 1 to 9 Selects dF (dual Fuel) setting. 0 is Off
MENU Cd
(60)
21 20 18 MENU A/C On (o) Heat On (b) Selects operation of the reversing valve terminal
62 to 98 Select's Limited HEAT Range
46 to 82 Select's Limited A/C Range
(If dual Fuel option is required, a selection of 5
is recommended)
0 to 99 Selects compressor delay in seconds when dF
is greater than 0
(O/B) output as an O or B terminal
5
INSTALLER/CONFIGURATION MENU
1) This control can be confi gured for:
MS 2 – Multi-Stage System (no heat pump)
HP 1 – Heat Pump with one stage of compressor
HP 2 – Heat Pump with two stage compressor or two
compressor system, Gas or Electric backup
SS 1 – Single Stage System
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.
3) Energy Management Recovery: (this step is skipped if
confi gured 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: E On is selected and your heating is 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.
4, 5 & 6) Cycle Rate Selection – The factory default setting for
Heat and Cool modes, SS1, MS2, is medium cycle (ME). For
Heat Pump, HP1, HP2, the default setting is medium (ME).
For Aux the default setting is fast cycle (FA). To change cycle
rate, press the
Cycle rate differentials for different settings are:
MODE Fast Medium Slow
FA ME SL
Heat (SS1, MS2) 0.4°F 0.6°F 1.7°F
Cool (SS1, MS2) 0.9°F 1.2°F 1.7°F
Heat Pump (HP1, HP2) 0.9°F 1.2°F 1.7°F
AUX (HP1, HP2) 0.6°F - 1.7°F
7) 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 compressor manufacturer can tell you if the
lockout feature is already present in their system. When
the thermostat compressor time delay occurs, it will fl ash
the setpoint for up to fi ve minutes.
8) System Mode Confi guration – This thermostat is confi g-
ured for Heat and Cool (SYSTEM switch with Cool Off
Heat) default. It can also be confi gured for Heat and Cool
(Heat, Cool, Off), Heat only with fan (Off Heat), Heat only
without fan, and Cool only (Cool Off).
9) Compressor Optimization – 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 circulate all of the cooled air. If CO is set to OFF, there
will be no delay in fan operation.
10) Select Backlight Display – The display backlight improves
display contrast in low lighting conditions. When the "C"
terminal is powered, selecting backlight dL ON will keep the
light on continuously. Select backlight OFF will turn the light
on momentarily after any button is pressed. When the "C"
or button.
terminal is not powered, the light will be on momen- tarily
after any button is pressed no matter whether the backlight
is selected ON or OFF.
11) 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.
12) Select F° or C° Readout – Changes the display readout
to Celsius or Fahrenheit as required.
13) Program Options: Selects confi guration for 7 day (7) or
non-programming (0) mode. The default setting is 0, indicating non-programming. The programs per week can be
changed by pressing the
of 0 days for non-programmable will eliminate the need for
EMR, and that step in the menu will be skipped.
14) Program Steps per day – This control can be confi gured
for 4 or 2 program steps per day. Default is "PS" and can
be toggled between 4 PS and 2 PS.
15 & 16) Select Fast Second Stage ON or OFF – Heat
pump or Multi-stage only, 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
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.
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
On. Use
18) Limited Heat Range – This feature provides a maximum
setpoint temperature for heat. The default setting is 99°F. It
can be changed between 62°F and 98°F by pressing the
or button.
19) Limited Cool Range – This feature provide a minimum
setpoint temperature for cool. The default setting is 45°F. It
can be changed between 46°F and 82°F by pressing the
or button.
20) Select Dual Fuel (dF) – Selects dual fuel setting 0 to 9
(0 is default OFF, for Elect AUX) if your system has a fossil fuel (gas or oil) Auxiliary heat. HP1 or HP2 only.
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 using
buttons. Available only if dF 1 to 9 is selected above.
21) Select Reversing Valve Output – The O/B option is
factory set at "O" position. This will accommodate the
majority of heat pump applications, which require the
changeover relay to be energized in COOL. If the thermostat you are replacing or the heat pump being installed
with this thermostat requires a "B" terminal, to energize
the changeover relay in HEAT, the O/B option should be
set at "B" position.
or touch keys to select the feature OFF.
or buttons. A selection
the second stage
or
6
OPERATING YOUR THERMOSTAT
Aux
Aux
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 button. The display will show "Fan" and the
blower should begin to operate.
3. Press FAN button again. The display will show "Fan" out lined and 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 System
1. Press the HEAT button to select HEAT. If the auxiliary
heating system has a standing pilot, be sure to light it.
2. Press to adjust thermostat setting to 1° above room
temperature. The heat pump system should begin to
operate. The display should show “Heat”. 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 7).
3. Adjust temperature setting to 3° above room temperature.
If your system confi guration is set at MS2, HP2 or HP1,
the auxiliary heat system should begin to operate and
the display will show "
4. Press
ture. The heating system should stop operating.
to adjust the thermostat below room tempera-
Auxiliary (Emergency) System
AUX bypasses the Heat Pump to use the heat source wired
to terminal W/E on the thermostat. AUX is typically used
when compressor operation is not desired, or you prefer
back-up heat only.
" and "Heat".
CAUTION
!
To prevent compressor and/or property damage, if the
outdoor temperature is below 50°F, DO NOT operate
the cooling system.
Cooling System
1. Press A/C button to select A/C.
2. Press to adjust thermostat setting below room temperature. The blower should come on immediately on high
speed, followed by cold air circulation. The display should
show “A/C”. If the setpoint temperature display is fl ashing,
the compressor lockout feature is operating (see Confi guration menu, item 7).
3. Adjust temperature setting to 3° below room temperature.
The second stage cooling should begin to operate. A click
from the thermostat will be heard to confi rm second stage.
4. Press to adjust the temperature setting above room
temperature. The cooling system should stop operating.
Dual Fuel Temperature Setpoint and
Compressor Delay
When the thermostat is confi gured for Heat Pump mode and
the Dual Fuel feature is selected, the thermostat can 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, item 20. A software logic based dual fuel number from
1 to 9 can be selected. A selection of 5 is recommended. A
higher number will provide a larger stage separation. A lower
number will provide a smaller separation.
After the dual fuel temperature setting is selected, press
Menu. A compressor delay (Cd) can be set for compressor
shutdown after the auxiliary stage is energized. This delay
will minimize the time the system may blow cooler air until the
alternate source of heat comes on. Default setting for delay is
60 seconds. This delay can be set from 0 to 99 seconds using
the
Compressor Delay (Cd) will not be available if dF is selected
0 (off).
or buttons.
1. Press and hold HEAT button for at least 5 seconds to
select "AUX".
2. Press to adjust thermostat setting above room temperature. The Auxiliary heating system will begin to operate. The display will show “AUX” and “HEAT”.
3. Press to adjust the thermostat below room temperature. The Auxiliary heating system should stop operating.
4. To return to Heat Pump mode press “HEAT” button. "
will dsplay.
"
7
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 RH and RC (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
should go blank and then all segments will be displayed momentarily.
Symptom Possible Cause Corrective Action
No Heat/No Cool/No Fan
(common problems)
No Heat
No Cool
Heat, Cool or Fan
Runs Constantly
Thermostat Setting &
Thermostat Thermometer
Disagree
Furnace (Air Conditioner)
Cycles Too Fast or Too Slow
(narrow or wide
temperature swing)
Forgot Keypad
Lockout Code
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.
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.
1. Thermostat thermometer setting
requires adjustment.
1. The location of the thermostat and/or
the size of the Heating System may
be infl uencing the cycle rate.
and FAN button simultaneously. The thermostat
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 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 reference, steps 4 through 6. 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.
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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