Haier HSU-09LEA13-F Installation Manual

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Contents

Outdoor unit5.Purging Method:7Push the air out of the indoor unit and piping as followes:(1) Remove the valve cap on 2-way valve in outdoor unit.(2) Loosen by 1/2 turn the flare nut of gas pipe, which isconneted to 3-way valve.(3) Loosen 2-way valve by 90o using hexagon wrench,and after approx. 10 sec tighten it up. Gas comes outthrough flare nut on wide pipe. If no gas is discharged,tighten flare nut with specified torque.(4) Open 2-way and 3-way valves using specified torque.(5) Tighten the caps on the valves with specified torque.Valve rodValve cap7-920-25Tighten torque N.m3-way valve15.88mm(5/8")2-way valve9.52mm(3/8")3-way valve2-way valve6.35mm(1/4") 12.7mm(1/2")3-way valve2-way valve6.35mm(1/4")9.52mm(3/8")HSU-09LEA13-WHSU-12LEA13-WHSU-18LEA13-WHSU-22LEA13-WHSU-12LEA13-FHSU-09LEA13-FHSU-24LEA13-WWhen connecting pipe exceeds 5 meters, 20g or 60g(onlyfor 22k) refrigerant shall be added per exceeding meter.Charge according to the following list.Piping lengthAdditional amount5m 7mNo need 40g10m100gfor 9k 12k 18kPiping lengthAdditional amount5m 7mNo need 120g10m300gfor 22k 24kDuring this procedure, 50g or 80g(22k) refrigerant will be discharged in piping.(This must be strictly controlled within 90o and 10 sec.)Brand new outdoor unit is charged 50g or 80g(22k) more refrigerant than regulatedweight. Only for firstinstallation, this extra 50g or 80g(22k) can be used to purge air in pipes.Note: When extending piping, air inside piping shall be removed by using external refrigerant gas,charge according to the following list.Max. Length: for 09K : A=7mfor 12K: A=10mfor 18K 22K: A=20mMax.Elevation: for 09K 12K: B=5mfor 18K 22K: B=10mCOutdoor unitIndoor unit Outdoor unitIndoor unitOil trapABOutdoor unitIndoor unitABABCAUTIONIn case more than 5 metresˈoil trapshould be installed every 5~7m.C