Haier HPU-90CA03T3 operation manual Main points of installation refrigerant pipe

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Installation procedure

Indoor unit

Main points of installation refrigerant pipe

Please install the gas pipe and liquid pipe according to the following shown method. Please remove the cover piece on the gas pipe and the screw cap on the liquid pipe.

A

B

¢Please connect the connecting pipes between indoor and outdoor unit according to the following method.

a)When introducing the pipe from right side

Use attached accessory <A> to connect the on-the-spot connecting pipe and gas pipe.

A B

b) When introducing pipe from rear side or left side

Use attached accessory <A> to connect the on-the-spot connecting pipe and gas pipe.

¢After finishing connection of connecting pipe, please do thermal insulation treatment by using the attached thermal insulation material. Otherwise, it may cause water leakage.

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Contents Cabinet unit Name of Parts Outdoor unitParts and Functions Operation points Safety Precautions Applicable ambient temperature rangeOperation Unit startFan Operation Users’ Attention Windows should be hung with curtains or blindsMaintenance Remove air inlet grilleAfter season maintenance Trouble shooting Followings are not problemsWhen problems occur? Switch is not set At onWhen Troubles Occur ? SymptomInstallation instruction Installation instruction Standard accessoriesInstallation procedure Before installationInstallation procedure Installation of indoor unitInstallation of fall-prevention fitting metal Indoor unit Slope Good Main points of installation refrigerant pipe Outdoor unit Unit Clearances Tubing connection Matters needing attention Check for leakage Vacuum PumpingRefrigerant charge Refill refrigerantOpen all valves Heat isolation of the pipesConnect wire between indoor & outdoor unit Wiring method Wiring method of orbicular terminalPressing method of connection wire Others Calculation of refrigerant density Preventive measures against excess of critical valuePage