Airedale Ultima Compact Condensing Unit 30kW - 450kW - Manual (Page 29)

Condensing Units ULTIMA COMPACT
Condensers & Condensing Units
29
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
Chill
ers
ULT
IM
A CO
M
PACT
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 door interlocking MCCB should be in the OFF position and the auxiliary alarm
contact from the MCCB should be linked out.
All pipework is complete and insulated where necessary.
Check for the presence of a refrigerant charge in the condenser side.
IMPORTANT Check phase rotation of electrical supply prior to running compressor as
compressor is direction sensitive.
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 external fuses/MCB are of correct rating.
 Check units properly earthed.
 Check pipework is earth bonded.
 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 and frequency 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 Sump Heater (ensure this is switched on for a minimum of 2 hours
prior to the unit operation).
 Check oil level.
 Check fans rotate freely.
 Check system correctly evacuated.
 Check operating of HP/LP cut-out, settings LP cut-out - Auto/HP switch - manual:
High pressure switch - 26 bar ( 400 psi ) - cut out
Low pressure cut-out - 0.5 bar ( 7 psi ) - cut out
 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.