Install Instructions
Page 3 of 4 www.fast-stat.com
Y2
Red
Black
Orange
Blue
Black
White
Yellow
Brown
Brown
Yellow
White
Orange
Gray (x2)
Blue
Black
Black
Red
Green Loop
Purple Loop
Indoor Unit
Heat
24V Transformer
R C
Fan Control
GW
R C W
Y1
Heat Pump
Defrost
Rev.
Valve
Stage 1
Y1
Stage 2
Y2
Control Board
O/B
Condenser
Cable
40
50
60
70
80
90
100
Thermostat
(Optional)
Heat Pump
Module
Model 9000
Heat Pump
Indoor Unit
Module
Model 9000
Indoor Unit
R C W
G
Thermostat
Y2Y1
O/B
Thermostat
Cable
Grounded Commons Wiring
A
Note: The Indoor Unit Module and Heat Pump Module
must both have a black wire grounded, otherwise the
Heat Pump Module will not receive power. If there is
a extra wire in the condenser cable, it can be used
to connect the black wire on the Indoor Unit Module
and Heat Pump Module together instead of grounding
them.
Note: See the ‘Fossil Fuel or Supplemental Heat’
section for details on the green and purple wire loops
and optional thermostat.




