Trane 18-HD64D1-4 Installation Manual page 7

4.5
Field Wiring
4.5.1 Communicating Indoor and Outdoor
Control
D
R
Control
B
Control
D
R
B
D
R
B
4.5.2 24V System
Control
Control
Control
4.5.3 Communicating Indoor (excluding TAM8) with Non-Communicating Single Stage Cooling
Control
D
R
Control
B
Control
D
R
B
D
R
B
18-HD64D1-4
Control
Communicating Indoor Unit
Brown
Red
Communicating Indoor Unit
Blue
Communicating Indoor Unit
Brown
Red
Blue
Brown
Red
Blue
D R
Relay Panel
D R
D Brown
Relay Panel
R
Red
B Blue
D R
Relay Panel
D Brown
Relay Panel
R
Red Relay Panel
B Blue
D Brown
Relay Panel
R Red
B Blue
Communicating Indoor Unit
(excluding TAM8)
Brown
Red
Communicating Indoor Unit
Blue
(excluding TAM8)
Communicating Indoor Unit
(excluding TAM8)
Brown
Red
Blue
Brown
Red
Blue
Variable Speed
Brown
D
R
Brown
BK
Y1
Y2
G
W1
Brown
W2 D
R
W3
Blue Brown
BK
B
Brown
Y1 D O
Y2
R
Brown
BK
G
W1
Y1
Y2 W2
W3
G
Blue
W1 B
W2 O
W3
Blue
B
O
B
*See Relay Panel
Installer's Guide
for specific wiring
instructions.
B
*See Relay Panel
Installer's Guide
B
for specific wiring
*See Relay Panel
instructions.
Installer's Guide
for specific wiring
instructions.
D
R
BK
Yellow
Y1
Yellow
Y2
G
W1
W2 D
R
W3
Blue
BK
B
Yellow
D Y1 O
Yellow
Y2
R
BK
G
Yellow
Y1 W1
Yellow
W2 Y2
W3
G
Blue
Heat Pump
W1 B
W2 O
W3
Blue
B
Neatly bundle all low voltage
O
wires behind the service
valve cover as shown.
Heat Pump
Heat Pump
Neatly bundle all low voltage
wires behind the service
valve cover as shown.
Communicating
Outdoor Unit
Communicating
Outdoor Unit
Communicating
Outdoor Unit
Blue
Blue
Blue
Indoor Unit
Indoor Unit
Indoor Unit
24V Outdoor Unit
24V Single Stage Cooling
24V Outdoor Unit
24V Outdoor Unit
24V Single Stage Cooling
24V Single Stage Cooling
Blue
Blue
Blue
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