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WIRING CONNECTIONSWIRING CONNECTIONS
WIRING CONNECTIONSWIRING CONNECTIONS
WIRING CONNECTIONS
Refer to equipment manufacturers' instructions for specific
system wiring information. After wiring, see CONFIGURA-
TION section for proper thermostat configuration.
Refer to
37-684337-6843
37-684337-6843
37-6843 for 1F83-0471/1F85-0471 wiring diagram
specifications.
WARNING
!
Thermostat installation and all components of theThermostat installation and all components of the
Thermostat installation and all components of theThermostat installation and all components of the
Thermostat installation and all components of the
control system shall conform to Class II circuits per thecontrol system shall conform to Class II circuits per the
control system shall conform to Class II circuits per thecontrol system shall conform to Class II circuits per the
control system shall conform to Class II circuits per the
NEC code.NEC code.
NEC code.NEC code.
NEC code.
INSTINST
INSTINST
INST
ALLAALLA
ALLAALLA
ALLA
TIONTION
TIONTION
TION
Figure 2 – Thermostat base and rear view of thermostatFigure 2 – Thermostat base and rear view of thermostat
Figure 2 – Thermostat base and rear view of thermostatFigure 2 – Thermostat base and rear view of thermostat
Figure 2 – Thermostat base and rear view of thermostat
RR
RR
R
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e Old e Old
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A standard heat/cool thermostat consists of three basic parts:
1. The cover, which may be either a snap-on or hinge type.
2. The base, which is removed by loosening all captive screws.
3. The switching subbase, which is removed by unscrewing
the mounting screws that hold it on the wall or adapter
plate.
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es fr
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hedhed
hedhed
hed. Disconnect the wires from the old
thermostat one at a time.
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Do not let wirDo not let wir
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Installing NeInstalling Ne
Installing Ne
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1. Pull the thermostat body off the thermostat base. Forcing
or prying on the thermostat will cause damage to the unit.
2. Place base over hole in wall and mark mounting hole
locations on wall using base as a template.
3. Move base out of the way. Drill mounting holes. If you
are using existing mounting holes and the holes drilled
are too large and do not allow you to tighten base snug-
ly, use plastic screw anchors to secure the base.
4. Fasten base snugly to wall using mounting holes shown
in Figure 2 and two mounting screws. Leveling is for
appearance only and will not affect thermostat operation.
5. Connect wires to terminal block on base.
6. Push excess wire into wall and plug hole with a fire re-
sistant material (such as fiberglass insulation) to prevent
drafts from affecting thermostat operation.
7. Carefully line the thermostat up with the base and snap
into place.
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TT
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DesignaDesigna
DesignaDesigna
Designa
tiontion
tiontion
tion
DescriptionDescription
DescriptionDescription
Description
L . . . . . . Heat pump malfunction indicator for systems
with malfunction connection
O . . . . . .Changeover valve for heat pump energized
constantly in cooling
B . . . . . . Changeover valve for heat pump energized
constantly in heating
Y . . . . . . Compressor Relay
Y2 . . . . . . 2nd Stage Compressor
W/E . . . . .Heat Relay/Emergency Heat Relay (Stage 1)
W2 . . . . .2nd Stage Heat (3rd Stage Heat in HP 2)
G . . . . . .Fan Relay
RH . . . . . Power for Heating
RC . . . . .Power for Cooling
C . . . . . .Common wire from secondary side of cooling
system transformer or heat only system transformer
6 . . . . . .3 Wire Zone Valve – Energized when no call
for Heat
TERMINTERMIN
TERMINTERMIN
TERMIN
AL DESIGNAL DESIGN
AL DESIGNAL DESIGN
AL DESIGN
AA
AA
A
TION DESCRIPTIONSTION DESCRIPTIONS
TION DESCRIPTIONSTION DESCRIPTIONS
TION DESCRIPTIONS
“AA” Alkaline Batteries
Figure 1 – Battery door shown openFigure 1 – Battery door shown open
Figure 1 – Battery door shown openFigure 1 – Battery door shown open
Figure 1 – Battery door shown open
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tteriestteries
tteriestteries
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2 "AA" alkaline batteries are included with the thermostat.
To install the batteries, pull the battery door as shown by the
arrow and lift open. Using the polarity indicated inside the
battery door, insert the batteries. To close the battery door,
swing the door down while pulling in the direction of arrow.
Once fully down, snap the door back into position. To
replace the batteries, set system to OFF.
Thermostat can be powered by system AC power or Battery.
If
is displayed, the thermostat is battery powered. If
is not displayed, thermostat is system powered with
optional battery back-up. When battery power remaining is
approximately half, the
will be displayed. When
"
ChangChang
ChangChang
Chang
ee
ee
e " is displayed, install fresh “AA” alkaline
batteries immediately. For best results, replace all batteries
with new premium brand alkaline batteries such as Duracell
®
or Energizer
®
. We recommend replacing batteries every 2
years. If the home is going to be unoccupied for an extended
Mounting
Hole
Mounting
Hole
Place Level
across
Mounting Tabs
(for appearance only)
Place Level
across
Mounting Tabs
(for appearance only)
period (over 3 months) and is displayed, the batteries
should be replaced before leaving. When less than two
months of battery life remain, the setpoint temperature will
offset by 10 degrees (10 degrees cooler in Heat mode / 10
degrees warmer in Cool mode). If offset occurs, the normal
setpoint can be manually reset with
or . Another
offset will occur within two days if batteries are not replaced.