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49
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