Hussmann proto-aire Manuel De Montage
Protocol™ Installation and
Service Manual
Service and Maintenance
IMPORTANT: Since Hussmann has no direct control over the installation,
providing the freeze-burst protection is the responsibility of the installing
contractor.
providing the freeze-burst protection is the responsibility of the installing
contractor.
Refer to Page 2-4
Know whether or not a circuit is open at the power supply. Remove all power
before opening control panels. Note: S
OME EQUIPEMENT HAS MORE THAN ONE
POWER SUPPLY
.
Always use a pressure regulator with a nitrogen tank. Do not exceed 2 psig and
vent lines when brazing. Do not exceed 350 psig for leak testing high side. Do not
exceed 150 psig for leak testing low side.
Always recapture test charge in approved recovery vessel for recycling.
The Water Loop should be tested for leaks using pressurized water.
DO NOT exceed 75 psig.
Service
Compressor Replacement
Compressor Replacement
Before beginning removal of old compressor prepare replacement compressor as
follows:
follows:
Verify
Replacement compressor
Electrical
requirements
Refrigerant
application
Capacity
Piping hookup location and design
Suction and discharge gaskets
Mounting
requirements
Have compressor in an easily accessible position, uncrated and unbolted from
shipping pallet.
shipping pallet.
Disconnect Electrical Supply
Turn off motor and control panel power supplies to the Unit.
Turn off control circuit and open all compressor circuit breakers.
Tag and remove electrical wires from the compressor.
Turn off motor and control panel power supplies to the Unit.
Turn off control circuit and open all compressor circuit breakers.
Tag and remove electrical wires from the compressor.
Isolate
Compressor
115