Test Operation SiME281501E49 Field Setting1. Test Operation1.1 Check Items before the Test Operation1.2 Test OperationAfter the indoor and outdoor unit installation, be sure to perform the test operation in accordance with thefollowing procedure.1. Open the front panel and check that the liquid and gas sides of the stop valves are open.Note:After doing an air-purge with a vacuum pump, the refrigerant pressure may not rise even if the stop valves areopened.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 operation mode.Within 10 seconds, press the RUN/STOP button to start the test operation. Check the unit, letting it run atleast 3 minutes.Note:• In the first operation after installation, the COOL operation is performed for approx. 3 minutes even whenthe HEAT operation is set. After that, the operation will be switched to the HEAT operation, but this isnormal. (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, butthis is normal.Item to checkPower supply wiringTransmission wiringEarth wiringIs 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.Refrigerant pipingIs 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.Amount of refrigerant Did you fill in the additional charging and recharging rate, and piping length on the caution labelattached to the rear side of the front panel?Indoor unitIs 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 thedecoration panel to the indoor unit.Direction to openDirection to openLiquid side Gas sideRemove the valve lid and turn the valve rodcounterclockwise with a hex wrench until is stops.
