TurboChill™
Chillers
49
TurboChill Water Cooled Technical Manual 9216326 V1.10.0 06_2017
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Maintenance
Pressure Relief Valve
In line with EN 378, Airedale recommends that the valve be replaced at least every 5 years. These intervals may have to
be reduced if other regulations apply. The pressure relief is fitted to the unit by a three way dual shut off valve.
This valve enables the pressure relief to be changed without the need for refrigerant recovery.
To change a pressure relief valve, back seat or forward seat the
valve to seal the required port that is being changed.
Do not forget to set the valve into the centre to check that the
valve does not leak refrigerant.
Then select one of the pressure relief valves and open that port.
Take extreme care that the correct port is selected.
Shut Down Periods
For periods of winter shut down the following precautions are recommended:
●
Close the liquid and discharge ball valve
●
Cap service ports
●
Drain the water from the unit
Put the cap on the three way valve. Perform an F-Gas inspection.
CAUTION
The equipment contains live electrical and moving parts, ISOLATE prior to maintenance or
repair work. ALL work MUST be carried out by technically trained competent personnel. Ensure
electrical lock off procedures are conducted.
CAUTION