Chillers ULTIMA COMPACT - Airedale International Air Conditioning
Chillers ULTIMA COMPACT - Airedale International Air Conditioning
Chillers ULTIMA COMPACT - Airedale International Air Conditioning
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<strong>ULTIMA</strong> <strong>COMPACT</strong> <strong>Chillers</strong><br />
Commissioning Procedure<br />
PRE COMMISSIONING CHECKLIST<br />
• Check that each circuit trips on low pressure. The alarm should appear within<br />
3 minutes.<br />
• The alarm will be recognised at the display circuit trip, to clear the alarms refer<br />
to Alarm Handling.<br />
CAUTION<br />
RECORD<br />
RECORD<br />
<strong>Chillers</strong><br />
42 Installation & Maintenance : 903-129 IM E 10/04/C<br />
Prior to the chiller compressors being allowed to start, the Water Flow Fail and<br />
Pump Interlock features MUST both be proven to work correctly.<br />
• To check the water flow fail safety protection is working satisfactorily:<br />
Reduce the flow rate to 75% of design and ensure that the evaporator pressure or<br />
flow protection switch trips at this flow rate, adjust as necessary.<br />
With compressors off, ensure this alarm is recognised as “Water Flow Fail” at the<br />
display and disengages the circuits operation immediately. Restore flow rate to the<br />
design and check the alarm has self-cleared.<br />
• To check the pump interlock safety feature works satisfactorily:<br />
Switch off the chiller water pump and check the interlock wiring connections at the<br />
chiller are open circuit.<br />
To switch the unit OFF, use the microprocessor keypad as follows:<br />
Press Prg<br />
, press , press , press & finally .<br />
Fully open all liquid line and discharge service ball valves on each circuit.
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