Refrigeration - AIREDALE LogiCool InRak Technical Manual

LogiCool InRak™
Maintenance

Refrigeration

Compare the following and compare results with commissioning records:
Suction, Liquid and Discharge pressures
Refrigeration system temperatures, Suction, Liquid and Discharge. Record
superheat and subcooling temperatures
Check each circuit sight glass for dryness and bubbles for indication of leaks
Head pressure control is maintained
Record details on F-Gas record
Check compressor oil level
Pressure relief valves
Service Tools/Test Equipment
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Procedures
HP/LP Safety Pressure Switch Settings
Check operating of HP / LP cut-out,
Settings
LP cut-out – (Auto reset for 3 times when the Low Pressure is detected over a period of 1 hour)
Has a 2 minute delay on start-up (similar to a Low ambient kit)
Low pressure cut-out 0.5 +/- 0.2 Barg
HP switch (manual reset): High pressure switch 40.25 bar +/- 1 Barg
HP limiting function 35 barg / 2 barg differential (this reduces the number of compressors operating i.e. 2 comp and
down to 1 comp.
Compressor Oil Level (Full load)
Check the compressor oil level at full load. (record oil level)
InRak™ Technical Manual 7462807 V1.11.0_04_2016
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Task
Refrigerant Manifold gauges
Spanners
Voltmeter
3 Months
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Safety Equipment
• Safety Glasses / Goggles
• Gloves
• Overalls
IT Cooling
Frequency
12 Months 60 Months
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