MCAC-CTSM-2018-1 Flooded type water cooled screw chiller (MIC)
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(3) Inspect whether there is an alarm on the display screen. If there is, correct the fault.
(4) Inspect the electronic expansion valve control module for alarms.
(5) Inspect whether the temperature points displayed on the screen are within the normal range.
Before running the unit, the temperatures for the discharge and fin and the ambient temperature need to
be close to the current actual ambient temperature, and the entering and leaving water temperatures
close to the water temperature at the user side. If there is any obvious deviation of the above
temperatures, inspect whether the temperature sensor is working normally and whether the connection
is firm and reliable.
(6) Inspect whether the flow in the water pump meets the requirements of the unit.
(7) Inspect whether the power supply of the unit is stable.
2) Parameters Inspections during Start-up and Operation
(1) The maximum range of parameters for normal operation of R134a refrigerant unit
See table 2 for the maximum range of performance parameters of R134a refrigerant:
[Table 2]
(2)Keep full records of unit data during commissioning.
Suction super-heating degree ℃
Discharge super-heating degree ℃
Values of various
temperature and
pressure points
showed in the main
page of the unit.
Compressor oil
heater begins to
work when the
unit is electrified.
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