Haier 1U28HS1ERA Installation Manual

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Haier 1U28HS1ERA Installation Manual Manual pdf 9 page image

7Read Before InstallationTools/Materials Use NotesGauge Manifold Evacuating,refrigerant charging 5.09MPa on the High-pressure side.Charging Hose Evacuating, refrigerant charging Hose diameter larger than the concentional ones.Refrigerant Recovery Equipment Refrigerant recoveryRefrigerant Cylinder Refrigerant charging Write down the refrigerant type. Pink in color at the top of the cylinder.Refrigerant Cylinder Charging Port Refrigerant charging Hose diameter larger than the conventional ones.Flare Nut Connecting the unit to piping Use Type-2 Flare nuts.Tools/Materials Use NotesGas leak detector Detection of gas leaks The ones for HFC type refrigerant may be used.Vacuum Pump Vacuum drying May be used if a reverse flow check adaptor is attached.Refrigerant Recovery Equipment Recovery of refrigerant May be used if designed for use with R410A.Flare Tool Flare machining of piping Chages have been made in the flare machining dimension.Refer to the next page.Tools/Materials Use NotesVacuum Pump with a Check Valve Vacuum dryingBender Bending pipesPipe Cutter Cutting pipesTorque Wrench Tightening flare nuts Only 12.70 (1/2'') and 15.88(5/8'') have a larger flare machining dimension.Welder and Nitrogen Cylinder Welding pipesRefrigerant Charging Meter Refrigerant chargingVacuum Gauze Checking vacuum degreeTools/Materials Use NotesCharging Cylinder Refrigerant Charging Must not be used with R410-type units.CAUTIONItems to Be Checked(1). Verify the type of refrigerant used by the unit to be serviced. Refrigerant Type: R410A(2). Check the symptom exhibited by the unit to be serviced. Look in this service handbook for symptoms relating to therefrigerant cycle.(3). Be sure to carefully read the safety precautions at the beginning of this document.(4). If there is a gas leak or if the remaining refrigerant is exposed to an open flame, a noxious gas hydrofluoric acid mayform. Keep workplace well ventilated.Install new pipes immediately after removing old ones to keep moisture out of the refrigerant circuit.Chloride in some types of refrigerants such as R22 will cause the refrigerating machine oil to deteriorate.Necessary Tools and MaterialsPrepare the following tools and materials necessary for installing and servicing the unit.Necessary tools for use with R410A(Adaptability of tools that are for use with R22 and R407C).1. To be used exclusively with R410A ( Not to be used if used with R22 or R407C )2. Tools and materials that may be used with R410 with some restrictions3. Tools and materials that are used with R22 or R407C that can also be used with R410A4. Tool and materials that must not used with R410ATools for R410A must be handled with special care, and keep moisture and dust from entering the cycle.