Daikin R32 Split Series Installer's Reference Manual

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Daikin R32 Split Series Installer's Reference Manual Manual pdf 22 page image

7 CommissioningInstaller reference guide222(A)MXM40+50M(3)(4)V1B(9)_2(A)MXF40+50A2V1BR32 Split series4P600463-2 – 2019.103 Turn on the main power supply.6.8.6 To close the outdoor unit1 Close the switch box cover.2 Close the service cover.NOTICEWhen closing the outdoor unit cover, make sure that thetightening torque does NOT exceed 4.1 N•m.7 CommissioningNOTICEGeneral commissioning checklist. Next to thecommissioning instructions in this chapter, a generalcommissioning checklist is also available on the DaikinBusiness Portal (authentication required).The general commissioning checklist is complementary tothe instructions in this chapter and can be used as aguideline and reporting template during the commissioningand hand-over to the user.7.1 Overview: CommissioningThis chapter describes what you have to do and know tocommission the system after it is installed.Typical workflowCommissioning typically consists of the following stages:1 Checking the "Checklist before commissioning".2 Performing a test run for the system.7.2 Precautions when commissioningINFORMATIONDuring the first running period of the unit, the requiredpower may be higher than stated on the nameplate of theunit. This phenomenon is caused by the compressor, thatneeds a continuous run time of 50 hours before reachingsmooth operation and stable power consumption.NOTICEALWAYS operate the unit with thermistors and/or pressuresensors/switches. If NOT, burning of the compressor mightbe the result.NOTICEALWAYS complete the refrigerant piping of the unit beforeoperating. If NOT, the compressor will break.7.3 Checklist before commissioningAfter the installation of the unit, first check the items listed below.Once all checks are fulfilled, the unit must be closed. Power-up theunit after it is closed.The indoor unit is properly mounted.The outdoor unit is properly mounted.The system is properly earthed and the earth terminalsare tightened.The power supply voltage matches the voltage on theidentification label of the unit.There are NO loose connections or damaged electricalcomponents in the switch box.There are NO damaged components or squeezedpipes on the inside of the indoor and outdoor units.There are NO refrigerant leaks.The refrigerant pipes (gas and liquid) are thermallyinsulated.The correct pipe size is installed and the pipes areproperly insulated.The stop valves (gas and liquid) on the outdoor unit arefully open.DrainageMake sure drainage flows smoothly.Possible consequence: Condensate water might drip.The indoor unit receives the signals of the user interface.The specified wires are used for the interconnectioncable.The fuses, circuit breakers, or locally installed protectiondevices are installed according to this document, andhave NOT been bypassed.Check if marks (room A~E) on the wiring and pipingmatch for each indoor unit.Check if the priority room setting is set for 2 or morerooms. Keep in mind that the DHW generator for Multi orthe Hybrid for Multi shall not be selected as the priorityroom.7.4 Checklist during commissioningTo perform a wiring check.To perform an air purge.To perform a test run.7.5 Trial operation and testingBefore starting the test run, measure the voltage at theprimary side of the safety breaker.The piping and wiring work match.The stop valves (gas and liquid) on the outdoor unit arefully open.Initialization of the Multi system can take several minutes dependingon the number of indoor units and options used.