White Rodgers 1F85RF-275 Installation and Operation Instructions

IMPORTANT

Do not apply power to the thermostat or wireless
sensor until instructed to do so.

QUICK INSTALLATION GUIDE

Any of the above can diminish or prevent proper
RF communication for this kit. Be sure to perform
a thorough checkout and confirm signal strength
between thermostat and wireless sensor.

Read Installer Notes

before removing cover

from Thermostat.

For proper operation of the RF wireless
communication, when installing:

z Avoid locating thermostat or sensor near any

wireless or noise generating devices, particularly
radio devices that operate in the range of 418 to
428 MHz.

z Be sure that there are no electrical wires, metal

pipes or ductwork in the part of the wall chosen for
thermostat or sensor location

1F85RF-275

Wireless Remote Kit

INSTALLER NOTES

System Power

Thermostat is received from the factory for system
power to be hardwired with a common wire connected to
terminal C. If no common wire is available, the thermo­stat will use Power Stealing and must be configured.
See Thermostat 24VAC Requirement on page 5.

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.

z Avoid locating the thermostat or sensor on a

concrete wall, metal junction box or metal plate.

z Thermostat antenna wire must be installed into the

wall. Do not allow the antenna wire to be between
the thermostat and the wall.

z Thermostat must have uninterrupted 24VAC for

proper communication.

FAILURE TO READ AND FOLLOW ALL

!

CONTROL COULD CAUSE PERSONAL INJURY
AND/OR PROPERTY DAMAGE.

INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS

Index Page

Wireless Remote Kit Installation 2
Applications 4
Specifications 4
Installation 5
Wiring Connections 6
Thermostat/Sensor Quick Reference 8
Installer Configuration Menu 10
Operating Your Thermostat and Sensor 14
Programming 17
Troubleshooting 18

www.white-rodgers.com

www.emersonclimate.com

PART NO. 37-6841E

Replaces 37-6841C and D

1039

1

Antenna Wire – When installing the thermostat,

antenna wire must be installed into the wall for
proper communication between the thermostat

and the remote sensor.

QUICK INSTALLATION GUIDE

WIRELESS REMOTE KIT INSTALLATION

Power Stealing – If the HVAC system does not

provide enough power, we recommend connecting
a 150 Ohm, 10 Watt resistor between terminals W
and C of the furnace or Y and C on the air
conditioner or both to increase the power provided.

System power must be turned off before
beginning installation

Mount thermostat

1

Position and mount thermostat on wall following
standard installation procedures. Questions on
installation, see Guidelines for Thermostat/Sensor
Locations and Mounting Thermostat and Sensor on
page 5.

Thermostat Antenna Wire

When system power is turned on, if the display is
blank, the thermostat is not receiving 24VAC.

Provide battery power to remote sensor

3

and check sensor transmission

Now, remove Battery Tag from remote sensor to
provide power.

The remote sensor will transmit once every 10
seconds for one hour.

Place the sensor on the thermostat for the best
transmitting-receiving conditions.

installed through wall

Connect wires to thermostat

2

Connect wires following standard wiring procedures.
Questions on wiring, see system diagrams on page 7.

24 VAC Requirement

The thermostat must have 24VAC to operate. If a
common wire is connected to terminal C, the
system is providing 24VAC to the thermostat and
the RC/PS switch (S7) should be in the RC posi­tion. (See Figure 1 on page 5) Proceed to step 3.

If the thermostat does not have a common wire
connected to terminal C, the RC/PS switch must be
in the PS position to allow Power Stealing.

2

Indicates

sensor is

transmitting

signal

Indicates
sensor is
receiving
signal

Signal
strength

WIRELESS REMOTE KIT INSTALLATION

QUICK INSTALLATION GUIDE

Confirm that thermostat is receiving

4

The thermostat receiving icon and the sensor
transmitting icon will appear at the same time. The
thermostat display will show SIGNAL and the
strength of the signal, 3 bars high signal strength, 2
bars medium signal strength, and 1 bar low signal
strength. The display will also show the temperature
sensed by the remote sensor.

During the one hour after remote sensor power-up,
the thermostat should be receiving signals consis-

tently (6 signals in one minute).

Position Remote Sensor at installation

5

location

Once communication has been confirmed, move
remote sensor to permanent location. Do not mount
remote sensor or drill holes to mount sensor yet.

Have someone hold the remote sensor at the
desired mounting location. Hold remote sensor on
the left side to avoid interference with the transmit­ting antenna on the right side.

Return to the thermostat and confirm that good
communication with the thermostat can be estab­lished as described in step 5. Ideal consistency is 6
signals in 1 minute.

Mount Remote Sensor

6

Once the ideal position is determined, mark mount­ing holes for the remote sensor. The batteries will
have to be removed from the remote sensor to
access the mounting hole under them.

After mounting the remote sensor, reinstall the
batteries. The remote transmitter will begin trans­mitting again. Confirm that communication with the

thermostat is still good as describe in step 5.

Complete Installation

7

Perform operation check of thermostat with heating
and cooling systems. Questions on thermostat
operation, see Check Thermostat Operation on
page 13.

Check Remote Sensor operation as described in
Remote Temperature Sensor Information on the
Thermostat Display on page 14.

In normal operation, the remote sensor will transmit
when it senses a temperature change of 3/16 of a
degree from the last transmission or after 10
minutes. The antenna icons will turn on briefly to
indicate the sensor is transmitting and the thermo­stat is receiving.

3

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

THERMOSTAT APPLICATION GUIDE

Description

Heat Pump (No Auxiliary or Emergency Heat) Yes
Heat Pump (with Auxiliary or Emergency Heat) Yes
Standard Heat & Cooling Systems Yes
Multi-Stage Systems requiring more than Yes
One Call for Heat or Cool
Standard Heat Only Systems Yes
Millivolt Heat Only Systems – Floor or Wall Furnaces No
Standard Central Air Conditioning Yes
Gas or Oil Heat Yes
Electric Furnace Yes
Hydronic (Hot Water) Zone Heat – 2 Wires * Yes
Hydronic (Hot Water) Zone Heat – 3 Wires No

* Common Connection Required

1F85RF-275 Thermostat and

Wireless Remote Sensor Kit

Automatic Heat/Cool Changeover Thermostat for Single Stage/
Multi-Stage/Heat Pump Systems with Wireless Remote Sensor

Installation and Operating Instructions for Model:

Model Programming Choices

1F85RF-270 5/1/1 Day Non-Programmable

F145RF-1328 Wireless Remote Sensor

1F85RF-270

Thermostat

F145RF-1328 Wireless

Remote Sensor

SPECIFICATIONS

Thermostat:

Electrical Ratings .......................... 20 to 30 VAC 50/60 Hz

0.2 to 0.6 Amps per Load
(Y1, E/W1, G)

1.5 Amps (Y2, W2, O, B
Load per terminal)

1.5 Amps Max

Setpoint Range.............................. 45 to 90°F (7 to 32°C)

Rated Differential (Single Stage) ... Heat 0.6° or 1.5°F, Cool 1.2°F

Rated Differential (Multi-Stage) ..... Heat 0.6° or 1.5°F, Cool 1.2°F

Rated Differential (Heat Pump)..... Heat & Cool 0.75° or 1.2°F

Operating Ambient ........................ 32 to +105°F (0 to +41°C)

Operating Humidity ....................... 90% non-condensing max.

Shipping Temp. Range.................. -4 to +150°F (-20 to +65°C)

Thermostat Dimensions ............... 3-3/4"H x 6"W x 1-1/4"D

WARNING

!

Thermostat installation and all components of the
control system shall conform to Class II circuits per the
NEC code.

(All terminals combined)

Remote Sensor:

This device complies with Part 15 of the FCC Rules, Operation is
subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause
undesired operation.

Maximum Wireless Remote Sensors .... 1 indoor, 1 outdoor

Operating Range .................................... 45 to 90°F (7 to 32°C)

Operating Humidity Range .....................0 to 90% RH

(non-condensing)

Dimensions .............................................2-5/8"H x 4-1/4"W x 7/8"D

* Max. Distance from Thermostat .......... 200 feet

* Distance shown is for a typical application. Distances may vary in

some applications because obstacles that block the signal path
may affect the strength of the signal.

ATTENTION: MERCURY NOTICE

This product does not contain mercury. However, this prod­uct may replace a product which 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.

www.white-rodgers.com

PART NO. 37-6841E

Replaces 37-6841C and D

1039

ANTENNA

MOUNTING HOLE

MOUNTING HOLE

INSTALLATION

CAUTION

!

To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
circuit breaker box until power is required.

MOUNTING

HOLE

ELEC/GAS SWITCH

RC/PS
SWITCH

ANTENNA
WIRE

MOUNTING
HOLE

Remove Old Thermostat

Before disconnecting wires from the old thermostat, mark
wires for terminal identification so the proper wiring connec­tions will be made to the new thermostat.

Guidelines for Thermostat/Sensor Locations

Locate the thermostat/sensor about 5 ft. above floor level on
an interior wall in an area that represents the average room
temperature.

Do not mount directly on or near HVAC equipment or other
sources of electrical noise.

Avoid locations close to windows or near adjoining outside
walls, doors leading outside, areas close to air registers or
their direct air flow or areas with poor circulation like alcoves.
Avoid locating the sensor on a concrete wall, junction box or
metal plate. Make sure there are no electrical wires, metal,
pipes or duct work in the part of the wall chosen for the
sensor location.

For proper RF wireless communication, the antenna wire
MUST be installed into the wall. If the antenna wire is
hanging between the wall and the thermostat the RF
communication may not be reliable

Antenna wire must be installed into the wall, it can not be
between the thermostat and wall.

Thermostat and indoor sensor are not approved for
installation in unconditioned space.

Thermostat 24 VAC Requirement

The thermostat must have 24 VAC supplied for the receiver
to operate. When the system wiring is connected, if a system
common wire is connected to terminal C, the system is
providing 24 VAC to the thermostat. The RC/PS switch (see
Fig 1) must be in the RC position.

If the thermostat does not have a common wire connected to
terminal C, the thermostat can use Power Stealing to get the
required 24 VAC. The RC/PS switch must be in the PS
position.

RC/PS Switch (Thermostat Power Option)

RC/PS
Switch

Position Description

RC For Hardwire Applications. Requires Common Wire

from System Transformer to "C" Terminal on Thermostat

PS For Power Stealing Applications. Use When Common

from the System Transformer is not Available for
Connection to the "C" Terminal on the Thermostat

NOTE: If set to PS (Power Stealing), the thermostat "C" terminal
must not have a wire connected.

Figure 1 – Thermostat base

ANTENNA
WIRE

REMOTE
COMMUNICATION
RECEIVER

Figure 2 – Back of thermostat base

Figure 3 – Remote sensor base

When the system is not providing enough power for the
thermostat, the display will be bright when the system is not
running and dim when the system is running. If the system is
not providing enough power, we recommend connecting a
150 Ohm, 10 Watt resistor between terminals W and C of the
furnace or Y and C of the air conditioner, or both, to increase
the power provided.

Mounting Thermostat and Sensor

Do not remove battery tag to power the sensor with batteries
until instructed to do so. The thermostat requires 24 volt system
power to operate correctly. If the thermostat goes blank, system
power is not reliable and will be corrected in the System Power
section below.

1. Remove the packing material from the thermostat and

sensor.

2. Pull the front cover of the thermostat straight off the base.

Forcing or prying will cause damage to the control.

3. Using the thermostat base as a template, place on the

selected wall locations and mark the location of all
mounting holes (Figure 1), and the hole for the thermostat
antenna wire illustrated in Figure 2.

4. Move base out of the way and drill the holes. If mounting

holes drilled are too large and do not allow you to tighten
base snugly, use the plastic screw anchors (provided) for
secure mounting.

5. Make sure the remote communication receiver is

plugged in properly to the thermostat and that the
antenna wire is routed through the thermostat subbase
as shown in Figure 2.

6. Insert antenna wire into the wall and position base into

mounting position.

7. Fasten base loosely to wall, using two mounting screws.

Place a level against bottom of base (leveling is for
appearance only and will not affect sensor operation)
and then tighten screws.

8. In the thermostat location, push excess wire into wall and

plug hole with a fire resistant material (such as fiberglass
insulation) to prevent drafts from affecting the thermostat
operation.

5

INSTALLATION

9. Connect wires to thermostat terminals as required. Refer
to wiring diagrams Fig. 4 thru 7 for proper wiring.

10. Apply system power and confirm that thermostat display
is on and SYSTEM mode is OFF. Press SYSTEM button
to OFF if necessary.

11. Enter the configuration as described in Thermostat
Configuration Menu on page 10. Configure the thermo­stat for system operation. While in the configuration
menu, enable the indoor remote wireless sensor (item 4)
by changing OFF to ON.

Confirming Communication of Remote

Sensor to Thermostat

Before finding a good location to mount the remote sensor,
confirm that the thermostat is receiving the remote sensor
signals consistently and at the best strength possible.

Reliable Communication: While the sensor is in the Learn
Mode, to be sure the thermostat and sensor have good commu­nication. The thermostat receiving icon and the sensor transmit­ting icon will appear and turn off at about the same time. The
thermostat will display SIGNAL and the strength of the signal.
3 bars indicates a strong signal and the most desirable, 2 bars
indicates a medium strength signal and 1 bar indicates a weak
signal which is acceptable if it can not be improved. The
thermostat display will also show the temperature sensed by the
remote. The thermostat should receive 6 signals in 1 minute and
the signal strength should be 3 bars if possible.

1. Remove the battery tag from only the remote sensor. The
battery tag must still be in the thermostat. The remote sensor
will begin transmitting a signal once every 10 seconds for
one hour.

2. Place the remote sensor on the thermostat and check that
the thermostat is receiving signals from the sensor. Confirm
that the sensor and thermostat have reliable communication
as described above in Reliable Communication.

3. Move the remote sensor to the room where it is to be
installed. Do not mark a mounting location or drill holes yet.

4. Have someone hold the remote sensor at the location
selected for the remote sensor. Hold the remote sensor on
the left side to avoid interference with the transmitting
antenna on the right side of the sensor.

6. Return to the sensor and confirm that reliable communica­tion with the sensor can be established again as described
in Reliable Communication. Have the sensor moved, if
necessary to improve the signal strength if it is not a consis­tent signal with signal strength of 3 bars.

7. Once the ideal position for the sensor is determined, mark
mounting holes using the sensor base as a template (Figure

3). The batteries will have to be removed to access a
mounting under them.

8. After the sensor is firmly attached to the wall and the batteries
are reinstalled, the remote sensor will begin transmitting
again for one hour. Return to the thermostat and once again
confirm that communication is still good as described in

Reliable Communication.

Battery Location

The sensor requires 2 "AAA" alkaline batteries. Batteries are
included at the factory with a battery tag to prevent power
drainage. The battery tag must be removed to engage the
batteries. For best results, replace batteries once a year with
new premium brand alkaline batteries such as Duracell
Energizer®.

®

or

Electric/Gas Switch (Fan Option)

The ELEC/GAS switch on the thermostat (Fig. 1) is factory
set to the ELEC position. In this position, the thermostat will
power the circulator fan on a call for heat. Electric heat
systems may require the switch to be in the ELEC position.

If your system does not require that the thermostat power the
circulator fan, this switch should be set to the GAS 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. The ELEC/GAS switch must be set
to match the type of Auxiliary heat your system uses for
proper operation in the EMERgency mode.

WIRING CONNECTIONS

Typical wiring diagrams are provided below for the following systems:

Single Stage Heat/Cool systems
Multi-Stage Heat/Cool systems (No Heat Pump)
Heat Pump system, one compressor or one speed compressor with Aux. Heat

Heat Pump systems, two compressors or two speed compressor with Aux. Heat
Refer to the equipment manufacturers instructions for specific wiring information. After completing the connections configure
the thermostat in the Installer Configuration Menu to match your system type.

6

WIRING CONNECTIONS

Figure 4 – Single Stage (No Heat Pump) Terminal Outputs

Y2

W2

No Output

System

Single Stage

(SS1)

R

24 Volt
(Hot)

*C

24 Volt

(Common)

Optional

Connection

Y1

Cool Mode
1st Stage
(Compressor)

No Output

Figure 5 – Multi-Stage (No Heat Pump) Terminal Outputs

R

System

24 Volt

Multi-Stage

(MS2)

(Hot)

(Common)

Optional

Connection

Figure 6 – Heat Pump Terminal Outputs

W2

Y2

Heat
Mode
2nd Stage.
Emergency
Mode 2nd
Stage

Heat
Mode
3rd Stage.
Emergency
Mode 2nd
Stage

System

Heat Pump 1

(HP1)
Single
Compressor
Heat Pump

Heat Pump 2

(HP2)
Two
Compressor
or Two Speed
Compressor

R

24 Volt
(Hot)

*C

24 Volt

(Common)

Optional

Connection

Y1

Heat Mode-

1st Stage

Cool Mode-

1st Stage

(Compressor 1)

No Output

Heat Mode-

2nd Stage

Cool Mode-

2nd Stage

(Compressor 2)

*C

24 Volt

E/W1

Heat
Mode
1st Stage
(Heater)

(Compressor 1)

E/W1

Emergency

Mode

1st Stage

Blower/
Circulator
Fan Energized
on Call for
Cool or Fan,
Energized on
Call for Heat if
Elect/Gas
Switch Set to
Electric

Y1

Cool Mode

1st Stage

Blower/
Circulator
Fan Energized
on Call for
Heat/Cool
or Fan,

Note: Set
Elect/Gas
switch for
Emergency
Mode Heat Type

G

Cool Mode

2nd Stage

(Compressor 2)

G

O

Energized
in Cool
Mode
(Change­over Valve
or Damper)

Y2

Energized
in Cool
Mode
(Change­over Valve)

W2

Heat
Mode
2nd Stage

O

B

Energized
in Heat, Off
Mode
(Change­over Valve
or Damper)

Heat
Mode
1st Stage

B

Energized
in Heat, Off,
Emergency
Mode
(Change­over Valve)

E/W1

L

Fault
Indicator
for Heat
Pump
Systems
with
Malfunction
Switch

NEUTRAL

Blower/
Circulator
Fan Energized
on Call for
Cool or Fan,
Energized on
Call for Heat if
Elect/Gas
Switch Set to
Electric

L

Fault
Indicator
for Heat
Pump
Systems
with
Malfunction
Switch

24VAC

HOT

G

CLASS II

TRANSFORMER

O

Energized
in Cool
Mode
(Change­over Valve
or Damper)

120VAC

B

Energized
in Heat, Off
Mode
(Change­over Valve
or Damper)

L

Fault
Indicator
for Heat
Pump
Systems
with
Malfunction
Switch

NEUTRAL

24VAC

HOT

CLASS II

TRANSFORMER

120VAC

NEUTRAL

24VAC

HOT

CLASS II

TRANSFORMER

120VAC

Figure 7 – Heat Pump Terminal Outputs - Two Transformer with no Safety Circuits

120VAC

HEAT

System

Heat Pump 1

(HP1)
Single
Compressor
Heat Pump

Heat Pump 2

(HP2)
Two
Compressor
or Two Speed
Compressor

NEUTRAL

24VAC

HOT

R

24 Volt
(Hot)

*C

24 Volt

(Common)

Optional

Connection

CUT AND
TAPE OFF

Y1

Heat Mode-

1st Stage

Cool Mode-

1st Stage

(Compressor 1)

Y2

No Output

Heat Mode-

2nd Stage

Cool Mode-

2nd Stage

(Compressor 2)

W2

E/W1

Heat
Mode
2nd Stage.
Emergency
Mode 2nd
Stage

Emergency

Heat
Mode
3rd Stage.
Emergency
Mode 2nd
Stage

Mode

1st Stage

TWO COMMONS MUST
BE JUMPERED TOGETHER

G

Blower/
Circulator
Fan Energized
on Call for
Heat/Cool
or Fan,

Note: Set
Elect/Gas
switch for
Emergency
Mode Heat Type

O

Energized
in Cool
Mode
(Change­over Valve)

B

Energized
in Heat, Off,
Emergency
Mode
(Change­over Valve)

L

Fault
Indicator
for Heat
Pump
Systems
with
Malfunction
Switch

NEUTRAL

24VAC

HOT

COOL

CLASS II

TRANSFORMER

120VAC

* The RC/PS switch shown in Figure 1 configures the thermostat for Hardwire or Power Stealing.

The factory setting is RC (Hardwire) and requires a Common connection from the system transformer to the "C" terminal on
the thermostat. If no common wire is available for the thermostat "C" terminal, move the RC/PS switch to PS (Power Steal­ing). NOTE: If set to PS (Power Stealing), the thermostat "C" terminal must not have a wire connected.

7

THERMOSTAT/REMOTE SENSOR QUICK REFERENCE

Before operating the thermostat, familiarize yourself with the
display and button functions. Both thermostat and remote
sensor consist of two parts: the cover and the base. To remove
a cover, pull it straight out from the base. To replace a cover, line
it up with the base and press until the cover snaps into place on
the base.

The Thermostat Buttons and Switches and Display

Raises and lowers the temperature setting.

1

Light flashes every 20 seconds indicating acceptable

2

signal reception from indoor or outdoor remote sensor.
Buttons for setting time (Time), programming (Prgm),

3

running program (Run) and bypassing program to
hold a constant temperature (Hold).

SYSTEM button (COOL, AUTO, HEAT, OFF, EMER

4

heat pump systems only).
FAN switch (ON, AUTO).

5

6

2

5

4

7

8

9

Displays the active temperature sensor (outside,

6

remote, local) and its sensed temperature if more than
one sensor is enabled.

Displays ( ) when in keypad lockout mode.

7

Indicates day of the week.

8

Indicates the thermostat mode information:

9

"HOLD" alternates with the system mode (see item 12)
if the HOLD button is pressed to bypass the program
and maintain a constant temperature.

Displays currently programmed set temperature (blank

10

when SYSTEM is OFF).
Alternately displays the current time and the tempera-

11

ture average of sensors (thermostat [local] and/or
indoor remote) turned on.

"HEAT" is displayed when set to heating,

12

"COOL" is displayed when set to cooling,
"AUTO" is displayed when set for automatic change­over between heating and cooling.
When "AUTO" is displayed, the currently active mode
(Heat or Cool) will also display.
"EMER" is displayed flashing (heat pump systems
only) when the thermostat is set to the Emergency
Mode. Emergency is used to bypass the heat pump
and use only the back-up heating system.
"FLTR" is displayed as a reminder to change or clean
the air filter after system has run for the programmed
filter time period.

Stage 1 & 2 indicator.

13

"STG 1" indicates when the first stage heat or cool is
energized. "STG + 2" indicates when the second stage
heat or cool is energized. "+2" blinking indicates
Auxiliary Heat stages are energized on Heat Pump
Systems.

16

17

14

12

15

1311

Figure 8 – Thermostat display, buttons and switches

Displays "LR" when the limited range feature is

14

activated. Limited range limits the temperature the
thermostat can be set to.

Indicates the system is sending a fault signal to the

15

thermostat "L" terminal. This does not indicate a fault
in the thermostat.

Antenna will display for a few seconds when the remote

16

or outdoor transmitted signal is received.
Indicates the current signal strength level of the remote

17

temperature system. Signal strength level is low (one
bar on), medium (two bars on) or high (three bars on).
The remote will operate with 1 bar showing.

10

8

THERMOSTAT/SENSOR QUICK REFERENCE

The Sensor Buttons and Display

Raises the Comfort adjust graph setting.

1

Lowers the Comfort adjust graph setting.

2

Sensed temperature from –40 to 140°F with °F and °C

3

indicator

Channel identification A B C O indicator

4

9 bar comfort adjust graph with H (hotter) and C (cooler)

5

Transmission occurrence indicator

6

Keypad lockout indicator

7

Calibrate temperature offset indicator

8

Learn mode activated indicator

9

Low battery indicator

10

Temperature offset used when hold time is active

11

Figure 9 – Remote Sensor display and buttons

Normal Operation

3

o

6

A

Configuration Items

1

2

4

5

Displays PWR and on to indicate normal operation

12

with display turned OFF

6

PWR HLD

12

11

3

BATT

10

o

LOCK

ABCO

CALIB

LEARN

9

H

C

5

7

4

8

5

5

9

THERMOSTAT CONFIGURATION MENU

INSTALLER/CONFIGURATION MENU

Press the System button until OFF is displayed, then press the and simultaneously

Press Displayed Press or

Step Button(s) (Factory Default) to select Comments

1 System MS2 SS1, HP2, HP1 Selects Single stage, Multi-stage, or Heat Pump

2 System LER (OFF) LER (ON) Selects learn mode OFF or ON
3 System OUTSIDE (OFF) OUTSIDE (ON) Selects OUTSIDE sensor OFF or ON

4 System REMOTE (ON) REMOTE (OFF) Selects REMOTE (indoor) sensor OFF or ON
5 System LOCAL (ON) LOCAL (OFF) Selects LOCAL sensor ON or OFF
6 System CH (0) 1 to 9 Select Receiver frequency offset
7 System PRG 4 PRG 0, PRG 2 Selects Programmable Periods
8 System EMR (ON) EMR (OFF) Selects Energy Management Recovery OFF or ON

9 System CR HEAT COOL (FA) SL Selects Fast or Slow cycle selection
10 System CL (OFF) CL (ON) Selects Compressor Lockout CL OFF or ON
11 System CdL (ON) CdL (OFF) Selects Backlight Display ON or OFF
12 System FA HEAT COOL (ON) FA HEAT COOL (OFF) Selects Fast Second Stage ON or OFF
13 System 0 FLTR 0–1950 (increments of 50) Selects filter replacement run time.0 =Disabled
14 System 0 F 4 LO to 4 HI Selects Temperature Display Adjustment 4 LO 4 HI

(Room Temperature)

15 System 4:00 HOLD 0:00 to 8:00 Selects Temporary Program Override Time

(Increments of 15 minutes) 0:00 =Disabled

16 System F C For C selection

17 System LR HEAT (90) LR 62 to LR 89 Selects Limited HEAT range
18 System LR COOL (45) LR 46 to LR 82 Selects Limited COOL range
19 System CA (OFF) CA (ON) Selects Comfort Alert Lock
20 System OFF LOCK ON LOCK Selects Button pad Lockout
21 0 00 LOCK 001 to 999 Selects Buttonpad lockout combination number

Run Returns to the OFF mode

(Single stage or 2-stage) system configuration

Selects temperature display as F° or C°

Press System to set code

The configuration menu allows you to set certain thermostat
operating characteristics to your system or personal require­ments.

Set SYSTEM button to OFF, then simultaneously press

and to enter configuration menu. The display will

show the first item in the configuration menu.

The configuration menu table summarizes the configuration
options. An explanation of each option follows.

Press SYSTEM to change to the next menu item. To exit the
menu and return to the program operation, press RUN. If no
keys are pressed within fifteen minutes, the thermostat will
revert to normal operation.

1) Single Stage, Multi-stage or Heat Pump Configuration
This menu item requires you configure the thermostat to
match your system. Choose your system option from the
table below:

System Type Select Option

Single Stage Heat/Cool systems SS1
Multi-Stage Heat/Cool systems (No Heat Pump) MS2
Heat Pump system, 1 compressor or 1 speed compressor HP1
Heat Pump systems, 2 compressors or 2 speed compressor HP2

The thermostat is factory defaulted to MS2. To select a
different option, press the or key to scroll through
the choices.

2) Select Learn Mode On or Off – Selecting LER On
enables the learn mode of the thermostat receiver. Your
thermostat is configured at the factory to recognize the
remote sensor shipped with it. The Learn Mode Option
is used only when required as described in Learn Mode
Option.

3) Selects OUTSIDE sensor OFF or ON – Selecting
OUTSIDE ON enables the thermostat to read a wireless
outdoor temperature sensor that has been configured
for Sensor O in the Learn Mode. This allows the thermo­stat to display the outdoor temperature reading.

4) Selects REMOTE sensor OFF or ON – Selecting
REMOTE ON allows the thermostat to sense an indoor
remote sensor that has been set-up the Learn mode.
The maximum number of Indoor Remote Sensors is 1
configured to sensor A, B or C.

5) Selects LOCAL sensor ON or OFF – Appears if
Remote is set to ON. Selecting LOCAL ON allows the
thermostat to use the onboard temperature sensor
exclusively or for averaging with the remote sensor
readings. To control temperature using only the indoor
remote sensor temperature(s), use the

or buttons

to select LOCAL OFF.

6) Select Receiver frequency offset – Appears if Remote is
set to ON. This option allows you to select a different
channel than the factory default for communication
between the thermostat and remote sensor. Note: If a

10

THERMOSTAT CONFIGURATION MENU

different channel is selected on the thermostat it must also
be changed to the same setting on the remote. This is
only used in areas where there are other wireless
devices or electronic equipment that interfere with the
default frequency of the thermostat/remote sensor
communication.

7) Programmable Periods – This control can be config­ured for 4, 2 or 0 programmable periods. The display
indicates "PRG 4" in the display as default. The program­mable periods can be changed to 2 or 0 by pressing the

or keys. With "PRG 0" selected for non-program­mable, SYSTEM key selection will skip EMR (item 8) and
temporary program override (item 15).

8) Select Energy Management Recovery OFF or ON –
Energy Management Recovery (EMR) causes the
thermostat to start heating or cooling early to make the
building temperature reach the program setpoint at the
time you specify. Heating will start 5 minutes early for
every 1° of temperature required to reach setpoint.
Example: You select EMR and have your heating
programmed to 65° at night and 70° at 7 AM. If the
building temperature is 65° the difference between 65°
and 70° is 5°. Allowing 5 minutes per degree the thermo­stat setpoint will change to 70° at 6:35 AM. Cooling allows
more time per degree because it takes longer to reach
temperature.

9) Fast or Slow Cycle Selection – The factory default
setting is fast cycle, which cycles 1st stage at approxi­mately 1.2°F and 2nd stage 0.75°F. If you prefer slow
cycle, press the temperature key to change to SL. The 1st
stage and 2nd stage would be 1.5°F and 1.2°F respec­tively.

10)Select Compressor Lockout CL OFF or ON – Selecting
CL ON will cause the thermostat to wait 5 minutes before
turning on the compressor if the heating and cooling
system loses power. It will also wait 5 minutes minimum
between cooling and heating 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 about five
minutes.

11)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 the backlight is
selected ON or OFF.

12)Select Fast Second Stage On or OFF – For Heat:
During normal operation if the setpoint temperature is
manually raised by 3°F or more above the actual
temperature with the
stage feature is enabled, FA ON, the second stage will
energize immediately.
For Cool: During normal operation if the setpoint tem­perature is manually lowered by 3°F or more below the
actual temperature with the
second stage feature is enabled, FA ON, the second
stage will energize immediately.

13)Select filter replacement run time – The thermostat will
display "FLTR" after a set time of operation. This is a
reminder to change or clean your air filter. This time can be
set from 0 to 1950 hours in 50 hour increments. A selec­tion of 0 will cancel this feature. When "FLTR" is
displayed, you can clear it by pressing HOLD and RUN at
the same time. This resets the timer and starts counting the
hours until the next filter change. Contact your system
manufacturer for a specific replacement/maintenance
interval.

button, and the fast second

button, and the fast

14) Select Temperature Display Adjustment 4 LO to 4 HI –

15)Select Temporary Program Override Time – The thermo-

16)Select F° or C° Readout – Changes the display readout

17)Limited Heat Range – This feature provides a maximum

18)Limited Cool Range – This feature provides a minimum

19)Comfort Alert – This feature is available in Passive

20 & 21) Keypad Lockout – This menu selection will

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.

stat can hold any temperature you set it to for the amount
of time you select on this option. Your choices are 0:00 to
8:00 hours in 15 minute increments. 0:00 means disable.
Example:

1. You have selected 3:00 hours for the Temporary Pro­gram Override time period.

2. With the thermostat set to Heat or Cool, press HOLD
for approximately 5 seconds until "HOLD time 3:00"
(indicating 3 hours) appears as a setting reminder.

3. After releasing the button, "HOLD" on the display will
blink.

4. Use

to Celsius or Fahrenheit as required.
setpoint temperature for heat. The default setting is 90°F. It

can be changed between 62°F and 89°F by pressing the

or key.

setpoint temperature for cool. The default setting is 45°F. It
can be changed between 46°F and 82°F by pressing the

or key.

mode on this thermostat. If a Comfort Alert module is
connected, the thermostat will receive and flash the fault
codes from the Comfort Alert module.

display lock (
the function and display the lock icon and OFF (keypad
not locked out, default) indicating in the time digits to the
lock icon and ON (keypad locked out). When the keypad
lockout function is enabled (ON), and the SYSTEM button
is pressed again, the display will indicate the number 000
(default, still disabled) in the time digits. The
are used to set the combination number from 0 to 999. If
a combination of 000 is selected and the SYSTEM button
is pressed, the menu will be exited and keypad will not be
locked. If 1 to 999 is selected and the SYSTEM button is
pressed again, the combination is locked into non-volatile
memory and the menu is exited. The lock icon (to
designate keypad locked with a valid combination) will
display when the menu is exited. 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 simultaneous press of
and will enter the menu item from any mode instead of
only OFF mode. When the menu is entered with the
keypad lockout feature enabled, the first menu item
displayed is the combination code 0. The
are used to set the combination unlock number from 0 to

999. If the unlock number matches exactly with the

combination lock number stored in memory when the
SYSTEM button is pressed, the keypad is unlocked and
the lock icon is removed. If the unlock number does not
match when the SYSTEM button is pressed, menu is
exited and the keypad remains disabled.
To reset the combination code and unlock the keypad if the
code is forgotten, see troubleshooting section, page 20.

or to set the temperature to your prefer
ence. The thermostat will maintain this temperature
setting for 3 hours with "HOLD" blinking to remind you
it is in Temporary Hold. After 3 hours, the thermostat
will go back to the program temperature and "HOLD"
will no longer blink or display.

) icon. The and are used to toggle

and

or keys

11

REMOTE SENSOR CONFIGURATION MENU

The configuration menus allow you to set certain remote sensor operating characteristics to your system or personal require­ments. Two configuration menus are available, User Configuration and Installer Configuration.

User Configuration Menu

Momentarily press
items press the
scroll through all menu items. If no buttons are pushed for 3 minutes, the control will also return to normal operation.
The User Configuration Menu table summarizes the configuration options. An explanation of each option follows.

Step Press button(s) Displayed Press

to scroll menu (factory default) to change option

1
2
3
4
5
6
7

and LOCK on Select keypad lockout OFF or ON
and HLD 1 to 8 hrs Select temporary adjust thermostat setpoint
and CALIB 1-4 bars (1°-4°) C to Select temperature display adjustment
and d
and dL OF Select display backlight OFF or ON
and
and _____ _____ Exits user menu and returns to normal

and keys at the same time and release to enter the User menu. To scroll through the menu

and keys at the same time. To change the item option press or . To exit the menu

User configuration menu

or Comments

(OF)
(4h) in 1 hour increments hold time
(Sensed Temperature) 1-4 bars (1°-4°) H higher or lower

F

(on)
(on)

o

F

(Sensed Temperature)

OF Select display temperature OFF or ON

o

C Select temperature display to F or C

operation

1) Select keypad lockout OFF or ON – Selecting LOCK
ON will cause the keypad to be locked in the normal
operation mode. This prevents the and from
being used to adjust temperature. The display will
indicate "LOCK" when the keypad is locked. If LOCK OF
is selected, the

and keys can still be used.
When the keypad is locked, the and keys can
still be pressed at the same time to enter the configura­tion menu.

2) Select temporary adjust thermostat setpoint hold time
– Selects the length of time for the temporary thermostat
setpoint adjustment. Hold time default is 4 hours and can
be set from 1 to 8 hours in 1 hour increments.

3) Select temperature display adjustment higher or
lower – allows you to adjust the room temperature
display 1° to 4° higher or lower. Your sensor was accu­rately calibrated at the factory but you have the option to

change the display temperature to match your previous
sensor or thermostat.

4) Select display temperature OFF or ON – Selecting OF
allows you to disable displaying the sensed temperature.
Instead of the temperature, the sensor will display "PWR"
with the word on to indicate normal operation. With
display OFF the Transmitting icon will not appear.

5) Select display backlight OFF or ON -. The display
backlight improves display contrast in low lighting
conditions. Selecting dL on will keep the light on for a
short period of time after any key is pressed. Selecting

OF will keep the light off.

o

6) Select temperature display to

F or oC - Changes the

display readout to Celsius or Fahrenheit as required.

12

REMOTE SENSOR CONFIGURATION MENU

Installer Configuration Menu

Your thermostat is configured at the factory to recognize the remote sensor it is shipped with as indoor sensor A. The Installer
Configuration Menu is used only when adding or replacing a remote sensor or selecting a frequency offset.
Press
scroll through the menu items, momentarily press the

press
return to normal operation. The Installer Configuration Menu table summarizes the configuration options. An explanation of
each option follows.

Step Press button(s) Displayed Press or Comments

1

2
3
4

and buttons at the same time for a minimum of five seconds then release to enter the Installer menu. To

and buttons at the same time. To change the item option,

or . To exit the menu scroll through all menu items. If no buttons are pushed for 3 minutes, the control will

Installer Configuration Menu

to scroll menu (factory default) to change options

and LEARN on Select learn mode OFF or ON

(OF) (will be ON for one hour after sensor

power-up)

and CH B, C, O Select sensor identification as A, B, C or O

(A)

and C 1 through 9 Select transmitter frequency offset

(0)

and _____ _____ Exit installer menu and return to normal

operation

1) Select learn mode OFF or ON – Selecting LEARN on
enables the sensors learning mode. In the learning mode
the sensor will transmit identification information once
every 10 seconds for a period of 10 minutes. The LEARN
icon will be displayed during the learning mode. The
Transmitting icon will be displayed for a short period of
time with each transmission. See Learn Mode Option.
If the display is selected OFF, the Transmit icon and
Learn icon will not appear. Learn mode is ON at power­up for one hour.

2) Select sensor identification from A to O – For multiple
sensors systems, each sensor must have a designated
identification. The thermostat can operate with one indoor
sensor and one outdoor sensor. For indoor sensors you
may select A, B or C. For outdoor sensor you must select
O.

3) Select transmitter frequency offset – The sensor’s
transmitter operates on 418MHz radio frequency by
default. Interference may occur if another device or
equipment operates on the same frequency. The interfer­ence may degrade the communications between the
sensor and the thermostat. To avoid interference, you
may select a different radio frequency for your sensor.
This menu item allows you to select a radio frequency
offset from 1 to 9MHz from the base frequency. For
example; if you selected an offset of 4, the transmitter
radio frequency will be 418MHz + 4MHz = 422MHz. Note
that the sensor’s transmitter and the thermostat’s receiver
must operate on the same frequency to communicate. To
change thermostat’s receiver frequency please refer to
Thermostat Configuration Menu (Item 6).

OPERATING YOUR THERMOSTAT AND REMOTE SENSOR

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 qualified 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. Move FAN switch to ON position. The blower should
begin to operate.

3. Move FAN switch to AUTO position. The blower should
stop immediately.

1. Press SYSTEM button 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 "STG1". However, if the
system configuration is set to HP1 or HP2 and setpoint
temperature display is flashing, the 5 minute compressor
lockout feature is operating (see Configuration menu,
item 10).

3. Adjust temperature setting to 3° above room temperature.
If your system configuration is set at MS2, HP2 or HP1,
the auxiliary heat system should begin to operate and
the display will show "STG 1+2".

4. Press
ture. The heating system should stop operating.

to adjust thermostat setting to 1° above room

to adjust the thermostat below room tempera-

Heating System

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.

13

OPERATING YOUR THERMOSTAT AND REMOTE SENSOR

Emergency System

EMER bypasses the Heat Pump to use the heat source wired

to terminal E/W1 on the thermostat. EMER is typically used
when compressor operation is not desired, or you prefer
back-up heat only.

1. Press SYSTEM button to select EMER. "EMER" will flash
on the display.

2. Press
temperature. The Emergency heating system will begin to
operate. The display will show "STG1" flashing "EMER"
and "HEAT" to indicate that the Emergency system is
operating.

3. Press
ture. The Emergency 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

to adjust the thermostat below room tempera-

CAUTION

!

Cooling System

1. Press SYSTEM button to select COOL.

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 "STG1". If the setpoint temperature display
is flashing, the compressor lockout feature is operating
(see Configuration 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 "STG 1+2".

4. Press
temperature. The cooling system should stop operating.

to adjust the temperature setting above room

Remote Temperature Sensor Information

on the Thermostat Display

During normal operation, the upper left of the thermostat
display changes every 6 seconds to show the temperatures
at the sensors that are turned on in the configuration menu.
The sensors are the thermostat (LOCAL), the outdoor
remote sensor (OUTDOOR) and the indoor remote sensor
(REMOTE). Below that, the display alternately shows the
time and temperature average of the sensors that are turned
on.

The word "SIGNAL" is shown along with number of bars (1-

3) indicating the relative signal strength. More bars mean

better reception. The antenna icon also displays for few
seconds when information from the remote sensor is
received.

If the thermostat does not receive an update signal from an
enabled remote sensor (REMOTE or OUTDOOR) for 30
minutes or more, the thermostat will display FAULT and
ANTENNA icons continuously. The REMOTE or OUTDOOR
sensor that has communication with the thermostat inter­rupted will display a temperature of --. If the active sensor is
the REMOTE, the thermostat will revert back to LOCAL
sense only mode.

Automatic System Changeover

When the thermostat is in the AUTO mode, the thermostat
will call for heat or cool depending on the room temperature.
The setpoint temperature displayed will be the last mode
called. If the last system cycle was heat, the HEAT setpoint
will be displayed. If the room temperature raises above the
HEAT setpoint and the COOL setpoint and a call for cool is
required, the temperature displayed will change to be the
COOL setpoint.

If you manually override the temperature in AUTO and it
does not switch to the mode (HEAT or COOL) that you want,

press the
modes. At the end of your override time it will revert back to
AUTO.

and keys once, at the same time to switch

Second Stage Time Delay

Your thermostat is designed to determine the optimum time
to activate the second stage. Simply raising the temperature
in heating or lowering it in cooling will not always force the
thermostat to bring the second stage on quickly. If the fast
second stage option in the configuration menu (step 12) is
set to "OFF", there is a delay from 0-30 minutes depending
on the performance of the first stage of the system.

EXAMPLE: For the last 2 hours the thermostat is set on 70°
and the room temperature is 70° with the equipment using
only the first stage of heat. Since the equipment is keeping
the temperature within 1 degree of setpoint, the thermostat
will delay second stage for a longer time if you manually
raise the temperature or if the room temperature quickly
changes. Once the second stage comes on, it will come on
sooner the next time there is a difference between the
setpoint and the room temperature. The net effect of the
staging program is that when the first stage is capable of
holding temperature, the second stage will delay longer.

When the thermostat calculates that first stage cannot make
temperature in a reasonable time, the second stage will
come on sooner. This built in function automatically opti­mizes the use of additional stages of heat or cool.

Learn Mode Option

Your thermostat is configured at the factory to recognize the
wireless remote sensor shipped with it. This sensor is stored
as Sensor A. The Learn Mode Option must be performed on
the thermostat and wireless remote sensor if:

• A wireless remote sensor is added to another channel.

• The wireless remote sensor is replaced.

• The thermostat is replaced.

• The thermostat has been reset using
SYSTEM keys.

During the Learn Mode, the wireless remote sensor will
transmit identification information every ten seconds for ten
minutes. In this ten-minute period, the display will show
“LEARN” and the antenna icon will show for a short time with
each transmission. The thermostat will be receiving the
transmitted identification information.

To perform the Learn Mode on the thermostat and sensor:

Remove the batteries from all wireless remote sensors in
the same building except the sensor you are going to put
into the Learn Mode. This will prevent interference from
the other sensors.

, , and

14

OPERATING YOUR THERMOSTAT AND REMOTE SENSOR

Be sure that the remote sensor is set for the proper
identification (A, B or C for indoor or O for outdoor) and
the thermostat and remote sensor are set to the same
frequency.
On the thermostat, enter the thermostat Configuration
Menu by pressing the SYSTEM button to OFF and then
momentarily pressing
Momentarily press SYSTEM button to advance to step 2
of the Configuration Menu. The display will show “LER”
and “OFF”.
Momentarily press
The display will flash “LER” with “On” displayed con­stantly.
On the wireless remote sensor, enter the Installer
Configuration Menu by pressing
seconds. The remote sensor display will change to
“LEARN OFF”.
Momentarily press
Exit the menu. The sensor will begin the Learn mode.
After the thermostat has successfully identified the
remote sensor in approximately one minute, the sensor
information will be stored and the thermostat display will
change to “LER” and “OK”.

If the identification sequence is not successful after ten
minutes, the thermostat display will show “LER”, “Fault” and
the antenna icon. If the Learn Mode is unsuccessful, refer to
Troubleshooting section, Antenna + Fault.

If you are replacing a thermostat that has more than one
wireless remote sensor, the Learn Mode must be performed
for each sensor. Once a sensor has been identified, it will
remain in the thermostat memory until the Learn Mode is
performed again and a different sensor for the stored
channel is identified.

and at the same time.

or to select “LER” and “On”.

and for five

or to select “LEARN On”.

Wireless Remote Indoor

Temperature Averaging

Your thermostat is designed to sense the temperature of
the indoor remote sensor and average or weight it with the
local sensor in the thermostat for each program period. The
averaging will only be active when both the local and the
indoor remote sensors are functional and turned on in the
configuration menu. When the thermostat is placed in view
schedule mode (press PRGM once), the weight of the
indoor remote sensor will be shown on the left side of the
display when HOLD button is pressed. The weighting
classes of the indoor remote sensor are designated as A
(default for average weight), HI (high weight), or LO (low
weight). The HI weight is two times the weight of A (aver­age). The A weight is two times the weight of LO. The weight
of the local sensor is fixed to A (average weight).
The actual temperature displayed, in the clock digits, in the
normal operation mode is the mathematical weighted sum
of the enabled functioning sensors. For example, if the local
sensed temperature is 80°F and the remote sensed
temperature is 70°F then:

If weight selected is HI , then the averaged temperature is
(2 x (80°F) + 4 x (70°F))/ 6 = 73.3°F.
If weight selected is A , then the averaged temperature
is (2 x (80°F) + 2 x (70°F))/ 4 = 75°F.
If weight selected is LO , then the averaged temperature
is (2 x (80°F) + 1 x (70°F))/ 3 = 76.6°F.

The example above shows that the weight selected would

prioritize the overall averaged temperature between the two
sensors. The high weight selection caused the remote
sensor to carry more weight in the calculated temperature
average than the local sensor. The low weight selection
caused the remote sensor to carry less weight in the
calculated temperature average than the local sensor.

Choose the Fan Setting (Auto or On)

Set the FAN Switch to Auto or On.
Fan Auto is the most commonly selected setting and runs
the fan only when the heating or cooling system is on.
Fan On runs the fan continuously for increased air circula­tion or to allow additional air cleaning.

Choose the System Setting

(Heat, Off, Cool, Auto, Emer)

Press the SYSTEM button to select:

Heat: Thermostat controls only the heating system.
Off: Heating and Cooling systems are off.
Cool: Thermostat controls only the cooling system.
Auto: Auto Changeover is used in areas where both heating

and cooling may be required on the same day. AUTO allows
the thermostat to 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.
Emer: Setting is available only when the thermostat is
configured in HP1 or HP2 mode.

Manual Operation for

Non-Programmable Thermostat s

Press the SYSTEM button to select Heat or Cool and use

or buttons to adjust the temperature to your

the
desired setting. After selecting your desired settings you can
also press the SYSTEM button to select AUTO to allow
the thermostat to automatically change between Heat and
Cool.

Manual Operation (Bypassing the Program)

Programmable Thermostats

Press or and adjust the temperature wherever you
like. Then press HOLD. This will override the program. The
HOLD feature bypasses the program and allows you to
adjust the temperature manually, as needed. Whatever
temperature you set in HOLD will be maintained 24 hours a
day, until you manually change the temperature or press
RUN to cancel HOLD and resume the programmed sched­ule.

Program Override (T emporary Override)

Press or buttons to adjust the temperature. This will
override the temperature setting for a (default) four hour
override period. The override period can be shortened or
lengthened by adjusting the temporary hold time in the
configuration menu.
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.
If the SYSTEM button is pressed to select AUTO the
thermostat will change to Heat or Cool, whichever ran last. If
it switches to heat but you want cool, or it changes to cool
but you want heat, press both
neously to change to the other mode.

and buttons simulta-

15

OPERATING YOUR THERMOSTAT AND REMOTE SENSOR

Remote Sensor Operation

The sensor monitors the temperature and sends information
to the thermostat. Updated information is sent to the thermo­stat when the temperature changes 3/16 degree or more
from the last update. If the temperature does not change for
10 minutes, the sensor will transmit to assure communica­tion.

Low Battery power: The sensor will display the word LO
along with BATT icon to indicate a low battery power
condition. The 2 "AAA" batteries must be replaced to ensure
a proper sensor performance. For optimum performance,
replace batteries once a year with new premium brand
alkaline batteries such as Duracell

Thermostat Setpoint Offset: The thermostat displayed
setpoint can be offset using the remote sensor
buttons. The remote setpoint offset is defaulted to 0 (zero).
Press
press

to increase the setpoint up to 4o (four bars C) or

to decrease the setpoint up to 4o (four bars H). After
the last button press, the remote sensor will delay for ten
seconds and then transmit the setpoint offset information.
When the thermostat receives the offset information, it will
start a remote sensor temporary hold for the length of time
set in the Remote Sensor Configuration Menu, item 2. The
setpoint temperature will be changed by the amount of offset
transmitted. HOLD on the thermostat will flash and HLD on
the sensor will display for the period of the hold. The remote
sensor Thermostat Setpoint offset can be cancelled at any
time by pressing the thermostat RUN button.

®

or Energizer®.

and

PROGRAMMING YOUR THERMOSTAT

This section will help you plan your thermostat's program to
meet your needs. For maximum comfort and efficiency, keep
the following guidelines in mind when planning your program.

• When heating (cooling) your building, program the temper­atures to be cooler (warmer) when the building is vacant or
during periods of low activity.

• During early morning hours, the need for cooling is usually
minimal.

Planning Your Program

Look at the factory preprogrammed times and temperatures
shown in the sample schedule. If this program will suit your
needs, simply set the time and day and press the RUN
button to begin running the factory preset program.

If you want to change the preprogrammed times and tem­peratures, follow these steps.

Determine the time periods and temperatures for your
program. You must program four periods for each day.
However, you may use the same heating and cooling
temperatures for consecutive time periods. You can choose
start times, heating temperatures, and cooling temperatures
independently (for example, you may select 5:00 AM and 70°
as the weekday 1st period heating start time and tempera­ture and also choose 7:00 AM and 76° as the weekday 1st
period cooling start time and temperature).

Use the table to plan your program time periods and the
temperatures you want during each period. Fill in the
complete table to have a record of your programs.

FACTORY PROGRAM

PERIOD WEEKDAYS (5 DAYS) SATURDAY (1 DAY) SUNDAY (1 DAY)

MORN 6:00 AM 70 F A 6:00 AM 70 F A 6:00 AM 70 F A
DAY 8:00 AM 62 F A 8:00 AM 62 F A 8:00 AM 62 F A
E VE 5:00 PM 70 F A 5:00 PM 70 F A 5:00 PM 70 F A
NITE 10:00 PM 62 F A 10:00 PM 62 F A 10:00 PM 62 F A
MORN 6:00 AM 78 F A 6:00 AM 78 F A 6:00 AM 78 F A
DAY 8:00 AM 85 F A 8:00 AM 85 F A 8:00 AM 85 F A
E VE 5:00 PM 78 F A 5:00 PM 78 F A 5:00 PM 78 F A
NITE 10:00 PM 82 F A 10:00 PM 82 F A 10:00 PM 82 F A

START REMOTE START REMOTE START REMOTE
TIME TEMP WEIGHT TIME TEMP WEIGHT TIME TEMP WEIGHT

PERSONAL PROGRAM

PERIOD WEEKDAYS (5 DAYS) SATURDAY (1 DAY) SUNDAY (1 DAY)

START REMOTE START REMOTE START REMOTE

TIME TEMP WEIGHT TIME TEMP WEIGHT TIME TEMP WEIGHT
MORN
DAY
EVE
NITE
MORN
DAY
EVE

COOL HEAT COOL HEAT

NITE

16

PROGRAMMING

CAUTION

!

Setting the Clock and Day

Set Current Time and Day

1. Press TIME button once. The display will show the hour
only.

EXAMPLE:

2. Press and hold either
correct hour and AM/PM designation (AM begins at mid­night; PM begins at noon). A will indicate for AM. P will
indicate for PM in the minutes digits.

3. Press TIME once again. The display window will show
the minutes only.

EXAMPLE:

4. Press and hold either
correct minutes.

5. Press TIME once again. The display will show the day of
the week.

6. Press
week.

7. Press RUN once. The display will show the correct time
and room temperature alternately.

This thermostat starts the programmed temperature earlier
than the time selected in your program. This allows the
system to reach your setting by the time you specify in your
program. This feature is called EMR (Energy Management
Recovery). If you do not want the thermostat to start early,
you may cancel the EMR feature in the Configuration Menu.

or until you reach the current day of the

or until you reach the

or until you reach the

Enter Heating Program

1. Press the SYSTEM button to HEAT.

2. Press PRGM once. "MO TU WE TH FR" (indicating
weekday program) will appear in the display. Also dis­played are the currently programmed start time for the
1st heating period and the currently programmed temp­erature (flashing).

EXAMPLE:

This display window shows that for the 1st weekday
period, the start time is 6:00 AM and 70° is the program­med temperature (this example reflects factory prepro­gramming.

3. Press
to your selected temperature for the 1st heating program
period.

4. Press TIME once (the programmed time will flash). Press
will change in 15 minute increments. When your selected

time is displayed, press TIME again to return to the
change temperature mode.

5. If both the local and the remote sensors are enabled, then
you may press HOLD button to change the remote sensor

or to change the displayed temperature

or until your selected time appears. The time

weighting setting. Remote icon will display. The pro­grammed weight (A, HI or LO) will flash. Press
to change the displayed weight to your selected weight
for the 1st heat program period.

6. Press PRGM once. The currently programmed start time
and setpoint temperature for the 2nd heating program
period will appear.

7. Repeat steps 3 and 5 to select the start time and heating
temperature for the 2nd heating program period.

8. Repeat steps 3 through 6 for the 3rd and 4th heating
program periods.

9. Press PRGM once "SA" (indicating Saturday program)
will appear in the display, along with the start time for the
1st heating period and the currently programmed temp­erature.

10.Repeat steps 3 through 8 to complete Saturday heating
programming.

11.Press PRGM once to change to "SU" (Sunday) heating
programming and repeat steps 3 through 7 to complete
Sunday programming.

12.When you have completed entering your heating pro­gram, press RUN.

or

Enter Cooling Program

If the outside temperature is below 50°F, disconnect
power to the cooling system before programming.
Energizing the air conditioner compressor during
cold weather may cause personal injury or property
damage.

1. Press SYSTEM button to COOL.

2. Follow Enter Heating Program for entering your cooling
program, using your selected cooling times and tempera­tures.

CHECK YOUR PROGRAMMING

Follow these steps to check your thermostat programming
one final time before beginning thermostat operation.

1. Press SYSTEM button to HEAT position.

2. Press PRGM to view the 1st weekday heating period
time and temperature. Each time you press PRGM, the
next heating period time and temperature will be display­ed in sequence for weekday, then Saturday and Sunday
program periods (you may change any time or tempera­ture during this procedure.

3. Press RUN.

4. Press SYSTEM button to COOL position.

5. Repeat step 2 to check cooling program.

6. Press SYSTEM button to HEAT or COOL and press
RUN to begin program operation.

YOUR THERMOSTAT IS NOW PROGRAMMED AND READY TO
PROVIDE MAXIMUM COMFORT AND EFFICIENCY!

17

TROUBLESHOOTING

Reset Operation

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 for 2 minutes. After resetting the thermostat, replace the wires . If
the thermostat has been reset and still does not function correctly contact your heating/cooling service person or place of
purchase.
Pressing
also clear any limited temperature ranges or keypad lockout settings. Note default system configuration is multistage system
operation.

and and the SYSTEM keys at the same time will reset the thermostat to its factory default setting. This will

Symptom

No Heat/No Cool/No Fan
(common problems)

No Heat

No Cool

Thermostat does not
Follow Program

Furnace Inducer Fan,
Blower or Heat Turns On
with No Call for Heat or
does not Turn Off when
Call for Heat Ends

Antenna + Fault

18

Possible Cause

1. Blown fuse or tripped circuit breaker.

2. Furnace power switch to OFF.

3. Furnace blower compartment door or
panel loose or not properly installed.

1. Pilot light not lit.

2. SYSTEM Switch not set to HEAT.

3. Loose connection to thermostat or
system.

4. Furnace Lock-Out Condition. Heat
may also be intermittent.

5. Heating system requires service or
thermostat requires replacement.

1. SYSTEM Switch not set to COOL.

2. Loose connection to thermostat or
system.

3. Cooling system requires service or
thermostat requires replacement.

1. Program or current time(s) set
incorrectly (AM, PM or Day of the
week).

2. Energy Management Recovery
(EMR) starting the program early.

In power stealing mode (RC/PS Switch
set to PS), the thermostat draws a small
amount of power through the heating circuit
to operate. Some furnace systems using
high impedance input electronic modules
may react to the current draw and actuate
system components.

1. Loss of power from heating/cooling
system to thermostat.

2. Remote sensor too far from thermostat.

3. Thermostat or remote sensor set to
different channels or a different frequency
offset.

4. Incorrect sensor identification selected.

5. Replacement Sensor requires
running learn mode.

6. Remote sensor requires replacement.

Corrective Action

Replace fuse or reset breaker.
Turn switch to ON.
Replace door panel in proper position to engage safety
interlock or door switch.

Re-light pilot.
Set SYSTEM Switch to HEAT and raise setpoint above
room temperature.
Verify thermostat and system wires are securely attached.
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 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
service person to verify the heating is operating correctly.

Set SYSTEM Switch to COOL and lower setpoint
below room temperature.
Verify thermostat and system wires are securely
attached.
Same procedure as diagnostic for No Heat condition
except set the thermostat to COOL and lower the setpoint
below the room temperature. There may be up to a five
minute delay before the thermostat clicks in Cooling.

Verify that the AM or PM settings are correct for
each program period and the current time of day.
Also verify the Day of the week is set correctly.
The EMR (Energy Management Recovery) feature
starts early to achieve the temperature it is pro­grammed for by the time specified in the program.
See the Configuration Menu section to disable
EMR if you do not want the thermostat to start early.

1. Add a common connection from the system trans­former to the "C" terminal on the thermostat and set the
RC/PS switch to RC.

2. If the system has a standard cooling contactor and no
common connection is available at the thermostat, clip
jumper W25-W1 and separate the ends. This prevents
the thermostat from drawing power from the W1
(heating) circuit. If the condition persists after clipping
the jumper, a heating and cooling service person can
install an isolation relay to the system or add a common
wire as mentioned above.

1. Verify the thermostat is operating on AC power by
removing the thermostat batteries. If display goes
blank, AC power is lost.

2. Change remote sensor location.

3. Verify the thermostat and remote sensor are set to the
same channel and frequency offset.

4. For indoor sensor, verify sensor identification selected
is A, B or C. For an outdoor sensor, verify the sensor
identification selected is O.

5. If the sensor did not come with this thermostat from
the factory, perform the learn procedure for thermo­stat and sensor.

6. If the sensor display indicate E0 or E1, replace the
remote sensor.

TROUBLESHOOTING

Symptom

Temperature Difference
between Thermostat
and Remote Location

Heat, Cool or Fan
Runs Constantly

Furnace
(Air Conditioner)
Cycles Too Fast
or Too Slow (narrow or
wide temperature swing)

Thermostat Setting &
Thermostat Thermometer
Disagree

Blank Display and/or
Keypad Not Responding

Heat Setpoint will
not Respond to the
Temperature Up Key

Cool Setpoint will
not Respond to the
Temperature Down Key

Forgot Keypad
Lockout Code

Why won't my 2nd or
3rd stage come on?

Possible Cause

1. Improper system sizing or improper
heating and cooling distribution
between areas.

2. An uneven change in occupancy
level, sun load or conditioned space
activities (cooking, washing dishes,
showers, etc.) between the areas.

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. The location of the thermostat and/or
the size of the Heating System may
be influencing the cycle rate.

1. Thermostat thermometer setting
requires adjustment.

1. Voltage spike or static discharge.

1. The desired setpoint conflicts with the
setpoint of the COOL mode.

1. The desired setpoint conflicts with the
setpoint of the HEAT mode.

Corrective Action

Selecting a high or low priority for the thermostat or
sensor location during program periods can help even out
minor temperature imbalances between the thermostat
and remote sensor locations. This is also useful for
scheduled or predictable events like occupancy level or
sun load during particular times of the day. If the tempera­ture difference remains large after assigning priorities,
system modification or zoning may be necessary to
balance the temperature distribution.

Check each wire connection to verify they are not shorted
or touching together. No bare wire should stick out from
under terminal screws. 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.

Digital thermostats normally provide precise temperature
control and may cycle faster than some older mechanical
models. A faster cycle rate means the unit turns on and
off more frequently but runs for a shorter time so there is
no increase in energy use. If you would like to increase
the cycle time, choose SL for slow cycle in the menu,
step 4. If an acceptable cycle rate is not achieved as
received or by choosing slow cycle, contact a local
service person for additional suggestions.

The thermometer can be adjusted +/- 3 degrees. See
Temperature Display Adjustment in the Configuration
Menu section.

Use the Reset Operation at top of previous page.

Change system mode to COOL. Raise the Cool setpoint.
Return to HEAT mode and set desired temperature.

Change system mode to HEAT. Lower the Heat setpoint.
Return to COOL mode and set desired temperature.

With the thermostat in any mode, press and at the
same time to enter the configuration menu at the point
where the lockout code is to be entered. Press and
and SYSTEM button at the same time to reset the lockout
code, unlock the keypad.

Your thermostat is designed to determine the optimum
time to activate the second stage. Simply raising the
temperature in heating or lowering it in cooling will not
always force the thermostat to bring the second stage on
quickly. There is a time delay from 0-30 minutes depend-

ing on the performance of the first stage of the system.

Communication Problem Solving

Problem solving steps are assuming that the thermostat and wireless remote sensor are together as a kit and are set up at the factory to
operate together. If a thermostat or sensor is being replaced the thermostat and sensor must have Learning Mode, or binding, run to associate
the sensor with the thermostat. See Learn Mode Option on page 11 of Installation Instruction.

Symptom

No Communication
between Sensor and
Thermostat

Possible Cause

Antenna wire installed improperly
24VAC not being provided

Configuration Menu items changed that
prevent communication.

Corrective Action

Antenna wire must be installed into the wall
Check thermostat wiring and RC/PS switch position. If

terminal C has a wire connected, RC/PS switch must be
in RC position, if terminal C does not have a wire
connected, RC/PS switch must be in PS position.

Reset thermostat by pressing , , and SYSTEM keys
at the same time. Be sure that thermostat has remote
enabled. Begin Learn mode on remote sensor. Begin
Learn mode on thermostat. Thermostat will indicate LER
and OK within one minute.

19

TROUBLESHOOTING

Symptom

Poor Communication
between sensor and
thermostat

Remote sensor display
shows only PWR and On.
Transmitting icon does not
appear. In Learn mode,
Transmitting icon and
Learn icon do not appear

Possible Cause

Antenna were installed improperly
Thermostat and/or sensor not at proper

height
Thermostat or sensor may be too close to a

wireless device or noise producing device
Thermostat or sensor may have obstacles

in wall
Remote sensor is configured to have

display OFF

Corrective Action

Antenna wire must be installed into the wall
Thermostat and sensor must be at least 5 feet above the

floor
Relocate thermostat or sensor

Relocate thermostat or sensor away from obstacle

If thermostat is indicating that it is receiving, the remote is
transmitting. If you wish to have the remote sensor
display show Temperature and Transmitting icon, change
the User Configuration Menu, item 4 from OFF to On

Communication Diagnostic

The thermostat will monitor the integrity of the communication between the thermostat, receiver and wireless remote sensors. When the
thermostat detects a potential communication problem, the LED will flash to indicate a failure code. The LED will flash at 1/2 second On/
Off with a 2 second pause. If more than one error occurs, the highest priority warning will be shown until it is resolved. The indication of
the codes is listed below in the highest priority order.

Code

Indication

Possible Cause

(Flashes)

1

2

3

4

5

6

7

24 VAC lost or not present (receiver will turn off and stop
communication with wireless remote sensor)

The receiver detected an invalid packet that fails CRC
check

The receiver detected abnormal false tripping

Receiver detected unidentified packet that passes CRC
check

Thermostat failed to communicate with receiver module

Indoor remote sensor not responding (Indoor sensor is
enabled and thermostat has not received update for over

30 minutes) thermostat will display Fault and antenna icon
Outdoor remote sensor not responding (Outdoor sensor is

enabled and thermostat has not received update for over
30 minutes) thermostat will display Fault and antenna icon

Local sensor faulty

Power Mode Switch S7 set to RC and common wire not
connected to C terminal.

Receiver antenna not positioned properly
Poor remote sensor location or orientation
Noisy environment
Radio interferring signal
To prevent this error indication press and hold RUN for 4

seconds to override. Override will be cleared on power-up.
Receiver not programmed (learned) to sensor
Other remote sensor operating on same RF frequency

channel
Receiver installed improperly

Receiver module inoperative
Remote sensor battery dead
Remote sensor has been moved or removed

Remote sensor battery dead
Remote sensor has been moved or removed

Local sensor temperature sensing circuit malfunction.

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

www.emersonclimate.com