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Unit must be stored indoors, protected from freezing.
Check dimensions for clearance and ensure floor strength.
Compressors have insulators; piping must be flexible.
Handle unit carefully; remove panels for sling access.
Mounting steps for 30HH,HJ020-030 and 30HH,HJ045-065 models.
Unit has a frangible disc for overpressure relief.
Description and use of a halide leak detector.
Connect pump/indicator, draw vacuum, and dehydrate.
Verify auxiliary components and safety settings before starting.
Charge with refrigerant, start unit, check controls.
Steps for charging refrigerant using vapor method.
Procedures for adding and removing compressor oil.
Adjusting expansion valve and safety thermostat settings.
Steps to verify and recalibrate safety thermostat operation.
Settings for pressure controls.
Motor protection via starters, overloads, and thermal sensors.
Branch circuit protection and unit stop procedure.
Manages compressor sequencing and load/unload via camshaft.
Unloads cylinders to control compressor capacity.
Troubleshooting steps for compressor non-operation.
Diagnosing low/high pressure control cycling.
Troubleshooting unit operation, noises, oil loss, and lines.
Ensure proper charging, thermostat settings, circulation, and draining.
Factors affecting normal head pressure.
Procedure to purge noncondensable gases.
Inspecting and cleaning condenser water side and tubes.
Using inhibited acid for cleaning shell and coil condensers.
Gravity flow and forced circulation cleaning methods.
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General