8
18-HD64D1-4
Red
Brown
Blue
Red
Brown
Blue
B
D
R
24V Single Stage Cooling
Heat Pump
Outdoor Unit
B
D
R
W1
W2
W3
G
Y2
B
O
BK
D
Y1
R
W1
W2
W3
G
Y2
B
O
BK
D
Y1
R
Yellow
Yellow
Blue
Blue
Brown
Brown
Blue
Blue
Communicating Indoor Unit
Communicating
Outdoor Unit
Communicating Indoor Unit
(excluding TAM8)
Relay Panel
Red
Brown
Blue
B
D
R
B
D R
Indoor Unit
24V Outdoor Unit
Relay Panel
*See Relay Panel
Installer’s Guide
for specific wiring
instructions.
*See Relay Panel
Installer’s Guide
for specific wiring
instructions.
Relay Panel
Red
Brown
Blue
B
D
R
B
D
R
B
D R
Relay Panel
Variable Speed
Furnace or Air Handler
W1
W2
W3
G
Y2
B
O
BK
D
Y1
R
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Air Handler with CCM
2 Stage Heat Pump
Brown
Blue
Red
O
D
R
B
Y1
Y2
Yellow/Red
Yellow
Blue
Black
(X2)
Red
Orange
B - Blue
Y1 - Yellow
Y2 - Brown
R - Red
O - Orange
Control
Control
Control
Control
Control
Red
Brown
Blue
Red
Brown
Blue
B
D
R
24V Single Stage Cooling
Heat Pump
Outdoor Unit
B
D
R
W1
W2
W3
G
Y2
B
O
BK
D
Y1
R
W1
W2
W3
G
Y2
B
O
BK
D
Y1
R
Yellow
Yellow
Blue
Blue
Brown
Brown
Blue
Blue
Communicating Indoor Unit
Communicating
Outdoor Unit
Communicating Indoor Unit
(excluding TAM8)
Relay Panel
Red
Brown
Blue
B
D
R
B
D R
Indoor Unit
24V Outdoor Unit
Relay Panel
*See Relay Panel
Installer’s Guide
for specific wiring
instructions.
*See Relay Panel
Installer’s Guide
for specific wiring
instructions.
Relay Panel
Red
Brown
Blue
B
D
R
B
D
R
B
D R
Relay Panel
Variable Speed
Furnace or Air Handler
W1
W2
W3
G
Y2
B
O
BK
D
Y1
R
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Air Handler with CCM
2 Stage Heat Pump
Brown
Blue
Red
O
D
R
B
Y1
Y2
Yellow/Red
Yellow
Blue
Black
(X2)
Red
Orange
B - Blue
Y1 - Yellow
Y2 - Brown
R - Red
O - Orange
Control
Control
Control
Control
Control
Field Wiring (continued)
4.5.4 Communicating Indoor (excluding TAM8) with Non-Communicating Outdoor
Heat Pump or Multi-Stage AC and Relay Panel
4.5.5 Communicating Indoor (TAM8) with Non-Communicating
Outdoor and CCM