Installation
EDUS391004-N
64
Installation of Outdoor Units
12. ONSITE SETTINGS
NOTE
In the case of a multi system, all onsite settings should be made on
the master unit. Settings made on sub units are invalid.
The outdoor unit to which the indoor unit transmission wire is
connected is the master unit, and all other units are sub units.
Use the push button switches (BS1 through BS5) on the outdoor unit
PC-board (A1P) to make the necessary onsite settings.
See the “Service Precautions” label (upper) on the electrical
components box lid for details on the positions and operating method
of the push button switches and on the onsite setting.
Make sure to record the setting on the accessory “REQUEST FOR
THE INDICATION” label.
WARNING
Electric Shock Warning
Use an insulated rod to operate the push buttons via the inspection
door of electrical components box lid.
There is a risk of electric shock if you touch any live parts, since this
operation must be performed with the power on.
13. TEST RUN
13-1 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 indoor unit are finished and there are no
danger to operate.
13-2 Test Run
After all works are 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 75°F 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
“11-2-2 Procedure of Check
Operation”
.
13-3 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.
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 electrical components box lid, the inspection door, and the
unit casing are all attached.
3P215731-10R
Summary of Contents for VRV III REMQ120PBTJ
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