CRR-20 & CRR-40, September 1999
Every
Annual/
1,000
Yearly
Pretrip
Hours
Inspect/Service These Items
Electrical
•
Perform a controller Full Pretrip Check.
•
•
Perform a controller Extended Pretrip Check.
•
•
•
Visually inspect condenser fan and evaporator fan rotation.
•
•
•
Visually inspect electrical contacts for damage or loose connections.
•
•
•
Visually inspect wire harnesses for damaged wires or connections.
•
•
Download the data logger and check data for correct logging.
•
Check calibration of graded sensors.
Refrigeration
•
•
•
Check refrigerant charge.
•
•
•
Check for proper suction pressure.
•
•
•
Check compressor oil level.
•
Check compressor efficiency and pump down refrigeration system.
•
Check liquid filter and dehydrator for a restriction or corrosion.
Structural
•
•
•
Visually inspect unit for damaged, loose or broken parts.
•
•
•
Tighten unit, compressor and fan motor mounting bolts.
•
•
Clean entire unit including condenser and evaporator coils and defrost drains.
Humidify System (Option)
•
Check water level in water tank.
•
•
•
Check humidify system operation.
•
•
Clean water supply filter on water tank.
Service Guide
Summary of Contents for CRR-20
Page 4: ......
