Heat Controller, Inc.
SERVICE MANUAL
Packaged Terminal A/C
16
SUGGESTIONS:
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 vaTransformer
2. Following are American Wire Gauge recommended sizes:
AWG WIRE SIZE NO.
MAXIMUM LENGTH (ft)
24
400
22
600
20
900
18
1500
16
2000