46
WIRING DIAGRAMS (52P AND 52C) (cont)
FRONT DESK SWITCH PANEL
24-V
TRANSFORMER
(SEE NOTE 1)
PTAC #1
PTAC #2
PTAC #N
ROOM 100
ROOM 101
ROOM N
B
W
B
W
B
W
FIELD-SUPPLIED
LEGEND
NOTES:
1. To size transformer, use the following equation:
Quantity of PTAC units x 12 va = Transformer Size (va)
Example: 110 PTAC Units x 12 va = 1320 va Transformer
2. Following are recommended wire sizes:
AWG WIRE SIZE NO.
MAXIMUM LENGTH (ft)
24
400
22
600
20
900
18
1500
16
2000
Typical Wiring Schematic for Energy Management Kit
AWG
—
American Wire Gage
B
—
Black
PTAC —
Packaged Terminal Air Conditioner
W
—
White
