Daikin VRV III REYQ8PY1, Service Manual

Page: 177 / 452

Test Operation Si37-701
166 Test Operation
1.2.7 Test Run
1.2.7.1 Before Test Run
• Make sure the following works are completed in accordance with the installation manual.
„
Piping work
„
Wiring work
„
Air tight test
„
Vacuum drying
„
Additional refrigerant charge
„
Check operation
• Check that all work for the BS unit and indoor unit are finished and there are no danger to
operate.
1.2.7.2 Test Run
After check operation is completed, operate the unit normally and check the following.
(1) Make sure the indoor and outdoor units are operating normally.
(2) Operate each indoor unit one by one and make sure the corresponding outdoor unit is also
operating.
(3) Check to see if cold (or hot) air is coming out from the indoor unit.
(4) Push the fan direction and strength buttons on the remote controller to see if they operate
properly.
NOTE:
• Heating is not possible if the outdoor temperature is 24°C or higher. Refer to the Operation
manual.
• If a knocking sound can be heard in the liquid compression of the compressor, stop the unit
immediately and then energize the crank case heater for a sufficient length of time before
restarting the operation.
• Once stopping, the compressor will not restart in about 5 minutes even if the On/Off button of
the remote controller is pushed.
• When the system operation is stopped by the remote controller, the outdoor units may
continue operating for further 5 minutes at maximum.
• The outdoor unit fan may rotate at low speeds if the Night-time low noise setting or the
External low noise level setting is made, but this is not a malfunction.
• If the check operation was not performed at first installation, the malfunction code “U3” will be
displayed in the remote controller. Perform the check operation following “ 1.2.5.2.2
Procedure of check operation ”.
1.2.7.3 Checks after Test Run
Perform the following checks after the test run is complete.
• Record the contents of field setting.
→
Record them on the accessory “REQUEST FOR THE INDICATION” label.
And attach the label on the back side of the front panel.
• Record the installation date.
→
Record the installation date on the accessory “REQUEST FOR THE INDICATION” label in
accordance with the IEC60335-2-40.
And attach the label on the back side of the front panel.
NOTE:
After the test run, when handing the unit over to the customer, make sure the EL.COMPO.BOX
lid, the inspection door, and the unit casing are all attached.