Electrical; Field Wiring - Hussmann Proto-Aire Installation Manual

Electrical

Field Wiring

Maximum Field Wire Size
Based on the total load amperes, the largest connectable wire sizes for the terminals on the
convenience switch are listed below. (Wire size is based on the serial plate minimum
circuit ampacity.)
Refer to National Electric Code for temperature derating factors.
Sizing Wire and Overcurrent Protectors
Check the legend for Minimum Circuit Ampacity (MCA), Maximum Overcurrent
Protective Devices (MOPD), and total RLAs. Follow NEC guidelines.
Note: A convenience switch is provided as part of the unit. A Branch Circuit must
be built to the unit using information supplied on the unit data plate for Minimum
Current Ampacity (MCA) and Maximum Over Current Protective Device (MOPD).
Protocol™ components are wired as completely as possible at the factory with all work
completed in accordance with the National Electrical Code. All deviations required by
governing electrical codes will be the responsibility of the installer.
The lugs on the convenience switch in the convenience switch box are sized for copper
wire only, with 75 °C THW insulation. All wiring must be in compliance with governing
codes.
For 208-230/3/60 Compressor Units:
To each Protocol™ provide:
One 208-230/3/60 branch circuit
One 120/1/60 neutral
One ground wire to earth ground
For 380-460/3/60-50 Compressor Units with Remote Mounted Transformer:
To each Protocol™ provide
One 380-460/3/60-50 branch circuit
One ground wire to earth ground
To remote mounted transformer
One 380-460/1 or 3/60-50 branch circuit from Protocol™ Fuse Block
One ground wire to ground wire connection
From remote mounted transformer
Total Connected Largest Connectable
RLA
200 A (max)
400 A (max)
59
Protocol™ Installation and
Wire
3 /0 per Ø
2 x (3 /0) per Ø
Service Manual