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NOTE
All diagrams show the 1F56(W) horizontal model,
°
turn subbase 90
for 1E56(W) vertical model.
ATTACH SUBBASE TO WALL
1. Pull wires through opening near centre of subbase and
connect wires beneath terminal screws (see figs. 3 to
8).
2. Push excess wiring into wall and plug hole with fire-
resistant material (such as fiberglass insulation) to
prevent drafts from affecting thermostat operation.
3. Position subbase over hole in wall and mark mounting
hole locations on wall.
4. Drill mounting holes.
5. Fasten subbase loosely to wall, as shown, using two
mounting screws. Place a level against bottom of sub-
base, adjust until level, and then tighten mounting
screws to secure subbase. If holes in wall are too large
and do not allow you to tighten subbase snugly, use
plastic expansion plugs to secure subbase (see fig. 2).
All wiring should be installed
according to local and national
electrical codes and ordinances.
Fan
Switch
AUTO
ON
G
Figure 3. Thermostat /subbase diagram
KEEP THIS
AREA CLEAR
OF WIRES!
Y
G
W
RC
Heating
System
Figure 4. Heating only, 2-wire,
single transformer systems
OFF
Y
RC
G
RC
THERMOSTAT
WIRING
RH
Y
W
RH
SYSTEM
Hot
24 VAC
120 VAC
Neutral
TRANSFORMER
FAN
AUTO
ON
KEEP THIS AREA
Mounting screw
CLEAR OF WIRES
Figure 2. Thermostat subbase
These typical wiring diagram show only the terminal
identification and wiring hookup. Always refer to wiring
instructions, provided by Equipment Manufacturer, for
system hookup operation.
Cool
Fixed
Heat
Cooling
Anticipator
Bimetal
Adjustable
Heating
Anticipator
Captive
Screws
System
Switch
RH
W
KEEP THIS
AREA CLEAR
OF WIRES!
Y
NOTE
RED jumper wire (provided
with thermostat) must be
connected between thermo-
stat's RH and RC terminals
for proper thermostat oper-
ation with this system.
Figure 5. Heat-only, 3-wire,
single transformer systems
3
SYSTEM
COOL
OFF
HEAT
G
RC
RH
Y
W
Hole
Mounting screw
in wall
NOTE
THERMOSTAT
SUBBASE
Field-installed
G
RC
jumper wire
THERMOSTAT
WIRING
RH
Y
W
JUMPER WIRE
G
W
RC
RH
SYSTEM
Fan
Heating
Relay
System
24 VAC
Neutral
TRANSFORMER
Hot
120 VAC
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