HVAC
GREEN
BROWN
YELLOW
RED
2 existing wires with
Add-A-Wire™
to accommodate
heating and cooling. No independent fan switching.
A jumper is required across G & Y.
THERMOSTAT
GREEN
YELLOW
3 existing wires with
Add-A-Wire™
to add a cooling
to a system that already has heating.
Add Jumper
ACC0410
MODEL
ADD-A-WIRE™
ACCESSORY
Add-A-Wire™
Diode ‘Y’
Add-A-Wire™
accessory
R
G
W
Y
C
R
G
W
Y
C
BLUE
BLUE
THE TWO EXISTING
THERMOSTAT WIRES
HVAC
GREEN
BROWN
YELLOW
RED
Add-A-Wire™
accessory
THERMOSTAT
GREEN
YELLOW
BLUE
BLUE
Add-A-Wire™
Diode ‘Y’
R
G
W
Y
C
R
G
W
Y
C
THE THREE EXISTING
THERMOSTAT WIRES
