Trane 22 Series - Electrical Connections at the Outdoor Unit

INDOOR UNIT D
INDOOR UNIT C
INDOOR UNIT B
INDOOR UNIT A
X
T
3
N
(
1
)
N
(
1
)
X
T
4
N
(
1
)
X
T
2
X
T
1
2
3
P
E
X
T
N
(
1
)
OUTDOOR UNIT
P
O
W
E
R
L
1
L
2
L
2
L
1
2
3
2
3
2
3
N
(
1
)
2
3
N
(
1
)
2
3
N
(
1
)
2
3
N
(
1
)
2
3
P
E
P
E
P
E
P
E
INDOOR UNIT D
INDOOR UNIT C
INDOOR UNIT B
INDOOR UNIT A
X
T
3
N
(
1
)
N
(
1
)
X
T
4
N
(
1
)
X
T
2
X
T
1
2
3
P
E
X
T
N
(
1
)
OUTDOOR UNIT
P
O
W
E
R
L
1
L
2
L2
L
1
2
3
2
3
2
3
N
(
1
)
2
3
N
(
1
)
2
3
N
(
1
)
2
3
N
(
1
)
2
3
P
E
P
E
P
E
P
E
X
T
5
N
(
1
)
2
3
INDOOR UNIT E
N
(
1
)
2
3
P
E
24K Model
30-42K Model
Electrical Connections at Outdoor Unit
L1
L2
L1 L2
L1
L2
L1 L2
C
C
18K Model
21K Model
For all models, terminals N(1) and 3 are for power; terminal 2 is for communication.
It is recommended to use a different wire color for each terminal connection in order to reduce
the risk of miswiring.
28
22 Series Multi-Zone