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COMMISSIONING THE HEAT PUMP AIR CURTAIN
Ensure that the electrical supply to the Air Curtain is switched off before starting
any commissioning work.
Air Curtain Checks
Check that the components inside the air curtain are as shown in the picture below.
Check that the thermal overheat cut-out switch has not ‘tripped’. Push down on the red
button on the top of the thermal overheat switch - if it has tripped it will click back on.
Set the adjustable aluminium vanes of the discharge air grille so they point straight
downwards over the doorway.
A PAR-21MAA Remote Controller should be connected and
used to carry out commissioning even if the air curtain is to
operate under the control of a BMS System or Centralised
Controller. Disconnect the remote control plug from inside the
PAC-AH…AHU Controller to use the remote controller. Plug it
back in again if a BMS/Centralised Controller is to be used and
the PAR-21MAA is disconnected after commissioning.
NB.
If the air curtain is used in AUTO mode under the control of
a BMS System or Centralised Controller it is necessary to also
have a PAR-21MAA Remote Controller connected.
Mitsubishi Electric Compressor Unit
For Y-Series systems ensure that the appropriate dip switch has been set in the
compressor unit so that the PAR-21MAA Remote Controller will operate in AUTO mode
and to enable Auto Re-Start after power failure if required.
PUMY-P model:- SW2-5 ON for AUTO mode
PUHY-P YHM and PQHY-P YHM model:- SW4-5 ON for AUTO mode
SW1-9 and SW1-10 on for Auto Re-Start after power failure.
Thermal
overheat
cut-out
switch
Air Inlet
Sensor
RED
Liquid Line
Sensor WHITE
12v DC & 230v AC
relays
Connections on
electric elements
