Airedale OptiChill FreeCool 500kW - 1365kW - Manual (Page 52)

OPTICHILL Chillers
52
Chillers
Installation & Maintenance : 6564868 02/2013
Commissioning Procedure
GENERAL To be read in conjunction with the commissioning sheets provided, items highlighted
should be recorded.
CAUTION Please ensure all documents have been completed correctly and return to Airedale
Technical Support immediately to validate warranty.
PRE COMMISSIONING CHECKLIST
CAUTION ALL work MUST be carried out by Technically Trained competent personnel.
The equipment contains live electrical and moving parts, ISOLATE prior to
maintenance or repair work.
The unit isolators DO NOT isolate the incoming mains supply, but isolate the
individual electrical panels. Isolate REMOTELY the mains incoming supply to the
BUSBAR chamber prior to maintenance or repair work.
The door interlocking MCCB should be in the OFF position and the auxiliary alarm
contact from the MCCB should be linked out.
Ensure all items listed in the Pre commissioning section are complete.
RECORD 
The unit should be visually inspected and any damage noted

Secure commissioning gauges to the high side of the system, check for a
positive charge

Check tightness of electrical components and properly terminated

Check that the remote on/off switch (if fitted) is in the off position

With the MCBs in the off position measure the incoming voltage

Check Phase Rotation

Check voltage at permanent supply

Measure and record the primary (230V) and secondary (24V) voltages at each of the
transformers, adjust tapping if necessary and record on the commissioning document

Check all timer settings are correct

Check compressor oil heater (ensure this is switched on for a minimum of 8 hours
prior to the unit operation)

Check oil level of each compressor

Check water filter is fitted

Check design water flow is available

Check flow switch and pump interlocks are fitted to the water system and wired
directly to the chiller and functioning correctly

Switch on the controls and individual circuits, primary and secondary, MCBs to the
ON position, at this stage the control display panel should be illuminated

Record Optional Extras

Record Controller Data
CAUTION Disable remote ON/OFF to ensure the unit does not start unintentionally.
The chiller will not start until microprocessor control SWITCH 1 is in the ON
position. DO NOT SWITCH TO ON AT THIS STAGE