Daikin RZQG71L9V1B Installer's Reference Manual

Also see for RZQG100L8Y1B: Service manual Installation manual Installation manual

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Daikin RZQG71L9V1B Installer's Reference Manual Manual pdf 27 page image

11 DisposalInstaller reference guide27RZQG71~140L_V1+Y1 + RZQSG100~140L_V1+Y1Split system air conditioners4P385522-1A – 2016.10DANGER: RISK OF ELECTROCUTIONWARNINGPrevent hazard due to the inadvertent resetting of thethermal cut-out: this appliance must NOT be suppliedthrough an external switching device, such as a timer, orconnected to a circuit that is regularly turned ON and OFFby the utility.DANGER: RISK OF BURNING11 Disposal11.1 Overview: DisposalTypical workflowDisposing of the system typically consists of the following stages:1 Pumping down the system.2 Dismantling the system according to the applicable legislation.3 Treating the refrigerant, oil and other parts according to theapplicable legislation.INFORMATIONFor more details, see the service manual.11.2 About pump downThe unit is equipped with an automatic pump down function, withwhich you can collect all refrigerant from the system into the outdoorunit.Example: To protect the environment, pump down when relocatingthe unit or when disposing of the unit.NOTICEThe outdoor unit is equipped with a low pressure switch ora low pressure sensor to protect the compressor by turningit OFF. NEVER short-circuit the low pressure switch duringpump down operation.11.3 To pump downDANGER: RISK OF EXPLOSIONPump down – Refrigerant leakage. If you want to pumpdown the system, and there is a leakage in the refrigerantcircuit:▪ Do NOT use the unit's automatic pump down function,with which you can collect all refrigerant from thesystem into the outdoor unit. Possible consequence:Self-combustion and explosion of the compressorbecause of air going into the operating compressor.▪ Use a separate recovery system so that the unit'scompressor does NOT have to operate.1 Turn ON the main power supply switch.2 Make sure the liquid stop valve and the gas stop valve areopen.3 Press the pump down button (BS4) for at least 8 seconds. BS4is located on the PCB in the outdoor unit (see wiring diagram).Result: The compressor and outdoor unit fan startautomatically, and the indoor unit fan might start automatically.4 ±2 minutes after the compressor started, close the liquid stopvalve. If it is not closed properly during compressor operation,the system cannot be pumped down.5 Once the compressor stops (after 2~5 minutes), close the gasstop valve.Result: The pump down operation is finished. The userinterface may display " " and the indoor pump may continueoperating. This is NOT a malfunction. Even if you press the ONbutton on the user interface, the unit will NOT start. To restartthe unit, turn OFF the main power supply switch and turn it ONagain.6 Turn OFF the main power supply switch.NOTICEMake sure to reopen both stop valves before restarting theunit.