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

ULTIMA COMPACT Condensing Units
30
Condensers & Condensing Units
Installation & Maintenance : 6259675 IM V1.4.0 10/2013
Commissioning Procedure
CAUTION Disable remote ON/OFF to ensure the unit does not start unintentionally.
The unit will not start until microprocessor control SWITCH 1 is in the ON position.
DO NOT SWITCH TO ON AT THIS STAGE
 Adjust the temperature supply and return set points (if necessary, via the chosen
control management scheme) to call for 100% cooling (refer to the
Controls section).
 Ensure all KNOBS and SWITCHES are adjusted to suit the design requirements
(refer to the
Controls section).
To switch the unit ON, use the microprocessor keypad as follows:
Press
Prg
, press , press , press & finally .
CAUTION There will always be a delay between the enabling of the unit and the energising of
the compressor contactors, anything between 1 to 2 minutes. Be patient.
 Check that each circuit trips on low pressure. The alarm should appear within
3 minutes.
 The alarm will be recognised at the display circuit trip, to clear the alarms refer
to
Alarm Handling .
To switch the unit OFF, use the microprocessor keypad as follows:
Press
Prg
, press , press , press & finally .
Fully open all liquid line and discharge service ball valves on each circuit.