Test Operation; Check Items Before The Test Operation - Daikin RZQ Series FCQ20EVA Service Manual

Test Operation

1. Test Operation

1.1

Check Items before the Test Operation

Power supply wiring
Transmission wiring
Earth wiring
Refrigerant piping
Amount of refrigerant
Indoor unit
1.2

Test Operation

After the indoor and outdoor unit installation, be sure to perform the test operation in accordance with the
following procedure.
1. Open the front panel and check that the liquid and gas sides of the stop valves are open.
<Be sure to close the front panel before the operation (Risk of electric shock)>
Note:
After doing an air-purge with a vacuum pump, the refrigerant pressure may not rise even if the stop valves are
opened.
This is because the refrigerant piping path is closed off by the outdoor unit electronic expansion valve, etc.
There are no problems if the unit is run.
2. Turn the power ON at least 6 hours before operating the unit to protect the compressor.
3. Set to cooling operation with the remote controller.
4. Press the remote controller's INSPECTION/TEST button 4 times (twice on the wireless remote controller)
to enter test
Within 10 seconds, press the RUN/STOP button to start the test
least 3 minutes.
Note:
• In the first operation after installation, the COOL operation is performed for approx. 3 minutes even when
the HEAT operation is set. After that, the operation will be switched to the HEAT operation, but this is
normal. (The remote controller displays "HEAT operation".)
• When the outdoor air temperature is 24°C or more, the HEAT operation is not performed even if it is set, but
this is normal.
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Is all wiring laid as instructed?
Is all the wiring connected? Are there no missing or reversed phases?
Is the wiring between units all in the correct order between the units?
Is the unit completely grounded?
Are the screws on the wiring attachments all thoroughly in screwed in?
Has the insulation resistance tested to at least 1 M?
• Use a 500V mega-tester for measuring insulation.
• Note: Do not use the mega-tester for currents other than 220V.
Is the piping size correct?
Is the piping insulation applied correctly?
Is the liquid and gas side piping all insulated?
Are the stop valves for both the liquid and gas sides open completely?
Operating the unit with the valves shut will break the compressor.
Did you fill in the additional charging and recharging rate, and piping length on the caution label
attached to the rear side of the front panel?
Is the indoor unit fully installed?
• When the test operation is started, the fan automatically begins turning.
If a decoration panel is not attached, make sure that no work is being done on the indoor unit.
• If you are using the wireless remote controller, do the test operation after attaching the
decoration panel to the indoor unit.
Direction to open
Liquid side
Remove the valve lid and turn the valve rod
counterclockwise with a hex wrench until is stops.
operation mode.
Item to check
Direction to open
Gas side
operation
SiME281501E
. Check the unit, letting it run at
Field Setting