Sterling A0554831 User Manual

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2-40 HP Portable Chillers 
Chapter 5: Maintenance 
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5-6  Preventative Maintenance Service 
Follow a systematic preventive maintenance program to help avoid costly down time. Call 
the Service Department to arrange a schedule of inspections. This service can be tailored to 
fit your maintenance requirements. These inspections include, but are not limited to: 
•  Checking refrigerant suction and discharge pressures 
•  Checking safety and operating conditions 
•  Checking voltage and amperage of all motors 
•  Checking all electrical connections 
•  Checking quantity of refrigerant 
•  Checking compressor oil level 
•  Checking lubrication of motor and pump bearings. 
•  Checking circulating pump operation 
•  Checking flow through heat exchangers 
•  Checking compressor efficiency 
•  Checking noise levels