Page 1
WHITE-RODGERS
Operator: 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.
Your new White-Rodgers Digital Thermostat uses the technology of a solid-state microcomputer to provide precise temperature control.
Features:
• Battery powered (3 “AA” Energizer® alkaline batteries included).
• Simultaneous heat and cool temperature storage
• LCD continuously displays set point and room temperature
This thermostat is intended for use with a low voltage system; do
not use this thermostat with a line voltage system. If in doubt
about whether your wiring is millivolt, line, or low voltage, have
it inspected by a qualified heating and air conditioning contractor
or electrician.
Do not exceed the specification ratings.
All wiring must conform to local and national electrical codes and
ordinances.
This control is a precision instrument, and should be handled
carefully. Rough handling or distorting components could cause
the control to malfunction.
1F86-444
Non-Programmable Electronic Digital Thermostat
INSTALLATION AND
OPERATION INSTRUCTIONS
DESCRIPTION
• °F/°C convertibility
• Temperature range 45° to 90°F
• Standard five terminals for single or two-transformer systems
• B and O terminals for single stage heat pumps or damper
operation
PRECAUTIONS
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.
WARNING
!
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will damage
thermostat and could cause personal injury and/or
property damage.
ELECTRICAL DATA
Electrical Rating:
8 to 30 VAC 50/60 Hz. or D.C.
0.05 to 1.5 Amps (Load per terminal)
1.5 Amps Maximum Total Load (All terminals combined)
THERMAL DATA
Setpoint Temperature Range:
45°F to 90°F (7°C to 32°C)
Operating Ambient Temperature Range:
32°F to 105°F
Operating Humidity Range:
0 to 90% RH (non-condensing)
Shipping Temperature Range:
-40°F to 150°F
WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS ROAD
R
ST. LOUIS, MISSOURI 63123-5398
APPLICATIONS
For use with:
• Standard heat/cool or heat only systems
• Electric heat systems
• Gas or oil fired systems
• Gas systems with intermittent ignition devices (I.I.D.) and/
or vent dampers
• Single-stage heat pump systems
• Millivolt systems
DO NOT USE WITH:
• Multi-stage systems
• Systems exceeding 30 VAC and 1.5 amps
• 3-wire zoned hydronic heating systems
Printed in U.S.A.
SPECIFICATIONS
PART NO. 37-5410C
Replaces 37-5410B
9805
Page 2
INSTALLATION
RH
Y
THERMOSTAT
SYSTEM
G W
Figure 3. Typical wiring diagram for heating only,
2-wire, single transformer systems or millivolt systems
Heating
System
RCOB
24 VAC Transformer
or
Thermopile
REMOVE OLD THERMOSTAT
1. Shut off electricity at the main fuse box until installation is
complete. Ensure that electrical power is disconnected.
2. Remove the front cover of the old thermostat. With wires
still attached, remove wall plate from the wall. If the old
thermostat has a wall mounting plate, remove the thermostat
and the wall mounting plate as an assembly.
3. Identify each wire attached to the old thermostat using
the labels enclosed with the new thermostat.
4. Disconnect the wires from old thermostat one at a time. DO
NOT LET WIRES FALL BACK INTO THE WALL.
5. Install new thermostat using the following procedures.
ELECTRIC HEAT OR SINGLE-STAGE HEAT
PUMP SYSTEMS
Read entire paragraph before setting electric heat switch. If you
are unsure of your application, contact a qualified serviceperson.
If you have a single-stage heat pump system, OR your system
uses central electric heat, where the blower is energized by a
separate circuit through the fan relay (meaning that the fan
turns on immediately on call for heat), then the switch on the
back of the thermostat base must be moved to the “ELECTRIC”
position (see fig. 1). If the thermostat is energizing electric heat
sequencers, the switch MUST remain in the “GAS” position.
If you must move the switch to the “ELECTRIC” position (to the
left), use a small screwdriver or pencil.
ATTACH THERMOSTAT BASE TO WALL
1. Remove the packing material from the thermostat. Gently
pull the cover straight off the base. Forcing or prying on the
thermostat will cause damage to the unit. If necessary, move
the electric heat switch (see ELECTRIC HEAT SYSTEMS,
above).
2. Connect wires beneath terminal screws on base using
appropriate wiring schematic (see figs. 3 through 10).
3. Place base over hole in wall and mark mounting hole
locations on wall using base as a template.
4. Move base out of the way. Drill mounting holes.
5. Fasten base loosely to wall, as shown in fig. 2, using two
mounting screws. Place a level against bottom of base,
adjust until level, and then tighten screws. (Leveling is for
appearance only and will not affect thermostat operation.) If
you are using existing mounting holes, or if holes drilled are
too large and do not allow you to tighten base snugly, use
plastic screw anchors to secure subbase.
6. Push excess wire into wall and plug hole with a fire-resistant
material (such as fiberglass insulation) to prevent drafts from
affecting thermostat operation.
BATTERY LOCATION
This thermostat requires 3 “AA” alkaline batteries to operate.
Batteries are installed in the thermostat at the factory with a
battery tag to prevent power drainage. You must remove the
battery tag to engage the batteries and provide power to the
thermostat.
If the word BATTERY is displayed, the batteries are low and
should be replaced with fresh “AA” Energizer® alkaline batteries.
To replace batteries, install the batteries along the top of the
base (see fig. 2). The batteries must be installed with the positive
(+) ends to the left.
2
Electric/Gas switch
Mounting
holes
Thermostat
RW
ELECTRIC GAS
Figure 1. Back of thermostat base
Alkaline batteries (3 "AA"–
install "+" ends to the left)
Screw anchors
RH
W
RC
G
B
O
Y
Figure 2. Thermostat base
NOTE
Jumper wire must be
added between R and B
terminals on the primary
control (jumper wire not
provided with thermostat).
Add jumper wire
(not provided with thermostat)
3-wire Series 10
Primary Control
(located at furnace)
B
W
R
Figure 4. Typical wiring diagram for
3-wire SERIES 10 heating systems
Furnace
Page 3
Y
Y
OB
NOTE
RED jumper wire (provided
with thermostat) must be
connected between thermostat's RH and RC terminals
for proper thermostat operation with this system.
G W
Fan
Relay
Heating
System
RC
Figure 5. Typical wiring diagram for
heat only, 3-wire, single transformer systems
Y
Cooling
System
G W
Fan
Relay
RCOB
24 VAC
Figure 6. Typical wiring diagram for
cool only, 3-wire, single transformer systems
OB
NOTE
RED jumper wire (provided
with thermostat) must be
connected between thermostat's RH and RC terminals
for proper thermostat operation with this system.
Y
Cooling
System
G W
Fan
Relay
Heating
System
Figure 7. Typical wiring diagram for
heat/cool, 4-wire, single transformer systems
JUMPER
WIRE
24 VAC
THERMOSTAT
RH
JUMPER
WIRE
RC
24 VAC
THERMOSTAT
RH
SYSTEM
TRANSFORMER
SYSTEM
Hot
120 VAC
Neutral
THERMOSTAT
RH
TRANSFORMER
Hot
120 VAC
Neutral
SYSTEM
Hot
120 VAC
Neutral
OB
Y
Cooling
System
G W
Fan
Relay
RC
Heating
System
THERMOSTAT
RH
SYSTEM
24 VAC
HEATING TRANSFORMER
24 VAC
COOLING TRANSFORMER
Figure 8. Typical wiring diagram for
heat/cool, 5-wire, two-transformer systems
JUMPER
WIRE
Y
Changeover
Relay*
* Changeover relay is energized when the
system switch is in the COOL position
Compressor
Contactor
G W
Fan
Relay
JUMPER
WIRE
RH
RCOB
24 VAC
THERMOSTAT
SYSTEM
TRANSFORMER
Figure 9. Typical wiring diagram for
heat pump with cool active changeover relay
JUMPER
WIRE
Y
Changeover
Relay*
* Changeover Relay is energized when the
system switch is in the HEAT position
Compressor
Contactor
G W
Fan
Relay
JUMPER
WIRE
RH
RCOB
24 VAC
THERMOSTAT
SYSTEM
TRANSFORMER
Figure 10. Typical wiring diagram for
heat pump with heat active changeover relay
Hot
120 VAC
Neutral
Hot
120 VAC
Neutral
Hot
120 VAC
Neutral
Hot
120 VAC
Neutral
CHECK THERMOSTAT OPERATION
If at any time during testing your system does not operate
properly, contact a qualified serviceperson.
Fan Operation
If your system does not have a G terminal connection, skip to
Heating System.
1. Turn on power to the 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.
Heating System
1. Move SYSTEM switch to HEAT position. If the heating
system has a standing pilot, be sure to light it.
2. Press to adjust thermostat setting above room temperature. The heating system should begin to operate.
3. Press to adjust temperature setting below room temperature. The heating system should stop operating.
Cooling System
This thermostat has a built-in short-term (5-minute) time delay.
This feature is activated after the compressor shuts down and
the setpoint is changed within the 5-minute period. During this
5-minute period, COOL will flash on the display indicating that
the thermostat has locked out the compressor to allow head
pressure to stabilize. This thermostat does not sense AC power
loss and therefore does not activate the short term compressor
protection feature when power is restored.
CAUTION
!
To prevent compressor and/or property damage, if the
outdoor temperature is below 50°F, DO NOT operate
the cooling system.
1. Move SYSTEM switch to COOL position.
2. Press to adjust thermostat setting below room temperature. The blower should come on immediately on high speed,
followed by cold air circulation
3. Press to adjust temperature setting above room temperature. The cooling system should stop operating.
3
Page 4
OPERATION
Before you begin using your thermostat, you should be familiar
with its features and with the display and the location and
operation of the thermostat buttons. Your thermostat consists of
two parts: the thermostat cover and the base. To remove the
cover, gently pull it straight out from the base. To replace the
cover, line up the cover with the base and press gently until the
cover snaps onto the base.
1
WHITE-RODGERS
2
THE THERMOSTAT BASE
The Thermostat Buttons and Switches
Other than and , the following buttons and switches are
located behind the door on the bottom of the thermostat cover
(see fig. 11). Pull the door down to open it.
(Red arrow) Raises temperature setting.
1
(Blue arrow) Lowers temperature setting.
2
FAN switch (ON, AUTO).
3
SYSTEM switch (COOL, OFF, HEAT).
4
The Display
HEAT is displayed when the SYSTEM switch is in the
5
HEAT position. COOL is displayed (non-flashing) when the
SYSTEM switch is in the COOL position. COOL is displayed (flashing) when the compressor is in lockout mode.
OFF is displayed when the SYSTEM switch is in the OFF
position.
Displays current temperature.
6
BATTERY is displayed when the 3 “AA” batteries are low
7
and should be replaced. Nothing else will be displayed.
Displays current setpoint temperature (this is blank when
8
SYSTEM switch is in the OFF position).
OPERATING FEATURES
Now that you are familiar with the thermostat buttons and
display, read the following information to learn about the features of the thermostat.
• SIMULTANEOUS HEATING/COOLING STORAGE — You
can enter both your heating and cooling setpoints at the
same time. There is no need to reset the thermostat at the
beginning of each season.
• LOW BATTERY INDICATOR — If the 3 “AA” alkaline
batteries are low and should be replaced, the display will be
blank except for the word BATTERY. When the batteries
are low, pressing any button will cause the display to
operate for ten seconds. After ten seconds, the display will
be blank except for the word BATTERY. When the duration
of a low battery condition exceeds four weeks, the setpoint
is altered by 10 degrees to signal that the batteries must be
replaced.
AUTOFAN ON COOL OFF HEAT
3 4
5
6
BATTERY
HEAT
COOL
57 68
Figure 11. Thermostat display, buttons, and switches
• °F/°C CONVERTIBILITY— After ten seconds of no key
activity, when the thermostat is in the temperature display
adjustment mode, or 30 seconds after power up, pressing
and at the same time will switch the LCD temperature
display between Fahrenheit and Celsius.
• TEMPERATURE DISPLAY ADJUSTMENT — Your new
thermostat has been accurately set in our factory. However,
if you wish, you may adjust your new thermostat temperature display to match your old thermostat. This can be
accomplished (within a ±4° range) as follows:
1. Press and at the same time within 30 seconds of
applying power.
2. Press or to adjust the displayed temperature to
your desired setting.
3. After setting your desired temperature, do not press any
buttons for ten seconds. The thermostat will continue
operating at the changed temperature setting.
SETTING THE THERMOSTAT
This thermostat is very easy to operate. Set the SYSTEM button
to either HEAT or COOL, then press or until the tempera-
ture you want to maintain is shown on the right side of the
display. If you want to turn the system off, just move the
SYSTEM switch to OFF.
The FAN switch controls the fan operation. When the FAN
switch is set to AUTO, the fan will cycle with the furnace or air
conditioner. When the FAN switch is set to ON, the fan will run
continuously, regardless of SYSTEM switch position.
Loading...