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10. Commissioning
[Fig 10.0.1] (P.6)
•
In order to set the mode and the temperature set point it is necessary to remove the orange plug which has printing on it stating “when using a
remote controller remove this plug.” Following this, switch on the power to the outdoor and the indoor unit. Allow the system to address and then
turn on the remote controller and set the desired temperature and heating mode (auto 28 if using an ACH1 for changeover from heating to
cooling).
•
Depending on the application the remote controller can be left on the system or it can be removed and a volt free contact across terminals A1 and
A2 can be used to start the unit (if using an ACH1 the controller must be left on the system)
•
With the remote controller, the PQFY will operate as requested just like a normal fan coil.
•
To use a volt free contact, first turn off the power to the indoor and outdoor, then remove the controller. Replace the orange plug and turn on the
outdoor and indoor unit. Terminal A1 and A2 now becomes a start / stop volt free contact. When the two terminals are closed / shorted then the
unit will start in the same mode and set point as was set on the remote controller.
•
When using a remote controller, if the orange plug is re-inserted, the volt free contact will over-ride the remote controller and start/stop the unit.
NOTE:
THE ROOM TEMPERATURE MUST BE THERMOSTATICALLY CONTROLLED BY THE UNDER FLOOR SYSTEM. THE PQFY WILL PROVIDE
HOT WATER OR COLD WATER UNTIL SIGNALED TO DO OTHERWISE.
THERE IS NO ROOM TEMPERTURE CONTROL ON THE PQFY.
