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HomeServices
1-800-4-MY-HOME
Operator: Save these ins uctions re 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 5-Day/I-Day/I-Day Digital Thermostat uses the tech-
nology of a solid-state microcomputer to provide precise time/
temperature control. This thermostat offers you the flexibility to
design heating and cooling programs that fit your needs.
Features:
• Separate 5-day (weekday), 1-day (Sat) and 1-day (Sun) pro-
gramming with four separate time/temperature periods per day
• Simultaneous heat and cool program storage
• Preprogrammed temperature control
• Backlit display
• LCD continuously displays setpoint, and alternately dis-
plays time and room temperature
1F80-382
Programmable Electronic Digital Thermostat
iNSTALLATION AND
OPERATION iNSTRUCTiONS
DESCRIPTION
• Temperature override until next program period
• Manual program override (HOLD temperature)
• Temporary HOLD
• °F/°C convertibility
• Temperature range 45° to 90°F
• RC, RH, C, W, Y, G, O and Bterminals
• Optional C terminal (Dual Power option)
• B and O terminals for single stage heat pumps (no auxiliary
heat) or damper operation
• Program storage in case of power loss
• 2 "AA" alkaline batteries included
This thermostat is intended for use with alow 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.
To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
ELECTRICAL DATA APPLICATIONS
Electrical Rating:
8 to 30 VAC 50/60 Hz. or D.C.
0.05 to 1.0 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:
-4°F to 149°F
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.
Thermostat installation and all components of the sys-
tem shall conform to Class II circuits per the NEC code.
For use with:
• Standard heat/cool or heat only systems
• Electric heat systems
• Gas or oil fired systems
• Gas systems with intermittent ignition devices (M.D.)
and/or vent dampers
• Hydronic (hot water or steam) systems
• Single-stage heat pump systems (no auxiliary heat)
• Millivolt systems
DO NOT USE WITH:
• Multi-stage systems
• Systems exceeding 30 VAC and 1.5 amps
• 3-wire zoned hydronic heating systems
PRECAUTIONS
SPECIFICATIONS
PART NO. 37=6924A
0811
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INSTALLATION
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 thermo-
stat 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.
ATTENTION!
This product does not contain mercury. However, this product
may replace a unit which contains mercury.
Do not open mercury cells. If a cell becomes damaged, do not
touch any spilled mercury. Wearing nonabsorbent gloves, take
up the spilled mercury with sand or other absorbent material and
place into a container which can be sealed. If a cell becomes
damaged, the unit should be discarded.
Mercury must not be discarded in household trash. When the
unit this product is replacing is to be discarded, place in a
suitable container and return toWhite-Rodgers at 2895 Harrison
Street, Batesville, AR 72501 for proper disposal.
ELECTRIC HEAT OR SINGLE-STAGE
HEAT PUMP SYSTEMS
This thermostat is configured from the factory to operate a heat/
cool, fossil fuel (gas, oil, etc.), forced air system. It is configured
correctly for any system that DOES NOT require the thermostat
to energize the fan on a call for heat. Ifyour system is an electric
heat or heat-pump system that REQUIRES the thermostat to
turn on the fan on a call for heat, locate the ELECTRIC/GAS
switch on the back of the thermostat (see fig. 1) and switch itto
the ELECTRIC position. This will allow the thermostat to
energize the fan immediately on a call for heat. Ifyou are unsure
if the heating/cooling system requires the thermostat to control
the fan, contact a qualified heating and air conditioning service
person.
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. 2 through 7).
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. 1, 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.
Screw anchors
Mounting
holes
Electric/Gas
switch
Mounting
holes
Figure 1. Thermostat Base
6. Push excess wire into wall and plug hole with afire-resistant
material (such as fiberglass insulation) to prevent drafts
from affecting thermostat operation.
BATTERY LOCATION
2 "AA" alkaline batteries are included in the thermostat at the
factory with a battery tag to prevent power drainage. You must
remove the battery tag to engage the batteries.
If "BATT" is displayed, the batteries are low and should be
replaced. For best results, replace all batteries with new pre-
mium brand alkaline batteries such as Duracell ®or Energizer _e.
To replace batteries, install the batteries along the top of the
base (see Fig. 1). The batteries must be installed with the
positive (+) end to the left.
HYDRONIC (HOT WATER OR STEAM)
HEATING SYSTEMS
This thermostat is set to operate properly with a forced-air
heating system. If you have a hydronic heating system (a
system that heats with hot water or steam), you must set the
thermostat to operate properly with your system. Change the
second option in the configuration menu to SL (see CONFIGU-
RATION MENU, page 4).
CHECK THERMOSTAT OPERATION
If at any time during testing your system does not operate
properly, contact a qualified service person.
Turn on power to the system.
Fan Operation
If your system does not have a G terminal connection, skip to
Heating System.
1. Move FAN switch to ON position. The blower should begin
to operate.
2. Move FAN switch to AUTO position. The blower should
stop immediately.
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JUMPER
WIRE
_)24_SYSTE:°t
l _ Neutral
a TRANSFORMER
attacln to RH and W J TRANSFORMER
Figure 2.Typical wiring diagram for
heat only, 3-wire, single transformer systems
JUMPER
WiRE
TRANSFORMER
Figure 3. Typical wiring diagram for
cool only, 3-wire, single transformer systems
RED jumper wire (provided with thermostat) must be
_connected between thermostat RR and RC terminals_ JUMPER
_for proper thermostat operation with this system. _ WIRE
T o
TRANSFORMER
Figure 4.Typical wiring diagram for
heat/cool, 4=wire, single transformer systems
v
Figure &Typical wiring diagram for
heat/cool, 5-wire, two-transformer systems
JUMPER JUMPER
WIRE WIRE
I _1 Contactor|U L____
_ ! ! L 24VAC U _C
* Reversing valve is energized when tlne _=J_Neutral
system switch is in the COOL position TRANSFORMER
Figure 6. Typical wiring diagram for heat pump
with reversing valve energized in COOL
JUMPER JUMPER
WIRE WIRE
24vAcLI 14.120wc
'==L_ Neutral
COOLING TRANSFORMER
T
)mpressorll t-an I I
;°ntact°r ! Re[_
* Reversing valve is energized when the
system switch is in the HEAT position
Figure 7.Typical wiring diagram for heat pump
with reversing valve energized in HEAT
1 24wc
TRANSFORMER
* The 24 Volt neutral connection to terminal C on the thermostat is not required ifthe batteries are replaced once a year
with fresh premium brand alkaline batteries.
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 tempera-
ture. The heating system should begin to operate.
3. Press (_ to adjust temperature setting below room tem-
perature. The heating system should stop operating.
Cooling System
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 tempera-
ture. The blower should come on immediately on high
speed, followed by cold air circulation
3. Press (_ to adjust temperature setting above room tem-
perature. The cooling system should stop operating.