Install Instructions

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Before
Before
After
After
W
R
H
H
Sender
Green
White
Yellow
Purple
Red
Yellow
Green
White
Red
Red
Purple
Red
Black
Thermostat
Cable
Thermostat
Cable
Thermostat
Y G W
R
Thermostat
Y G
Indoor Unit
W
Heat
R C
24V Transformer
G
Fan
Y
Indoor Unit
W
Heat
R C
24V Transformer
G
Fan
Y
Note: If the installation has additional
wires (C, W2, Y2, O/B, H, etc.), they
can remain connected directly to the
equipment terminals.
Humid.
Receiver
Model 3000
To Air
Conditioner
Adding an Air Conditioner to a Heat-Only System (Dry-Contact Switching)
B
Adding an Air Conditioner to a Heat-Only System
A
W
R
H
H
Air HandlerHeating System
Sender
Green
Red
Yellow
Purple
24VAC
Relay
Red
Yellow
Green
White
Red
Red
Purple
Black
White
Thermostat
Cable
Thermostat
Cable
Thermostat
Y G W
R
Thermostat
Y G
T
T
Heat
Heating System
T
T
Heat
External Transformer
24V Transformer
G
Fan
Y
Note: If the installation has additional
wires (C, W2, Y2, O/B, H, etc.), they
can remain connected directly to the
equipment terminals.
Note: An external 24VAC transformer
and 24VAC relay will have to be
installed.
Humid.
Receiver
Model 3000
To Air
Conditioner