Haier HSU-07HEA03 - annexe 1 Installation Manual

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Haier HSU-07HEA03 - annexe 1 Installation Manual Manual pdf 7 page image

Outdoor unit5.Purging Method:73-way valve15.88mm(5/8")2-way valve9.52mm(3/8")HSU-22HEA03HSU-24HEA033-way valve2-way valve6.35mm(1/4") 12.7mm(1/2")HSU-18HEA03HSU-12HEA03HSU-07HEA03HSU-09HEA03HSU-12HEB033-way valve2-way valve6.35mm(1/4")9.52mm(3/8")Note: When extending piping, air inside piping shall be removed by using external refrigerant gas,charge according to the following list.Brand new outdoor unit is charged 50g or 80g(22k,24k) more refrigerant than regulated weight. Only forfirst installation, this extra 50g or 80g(22k,24k) can be used to purge airin pipes.During this procedure, 50g or 80g(22k,24k) refrigerant will be discharged in piping.(This must bestrictly controlled within 90o and 10 sec.)When connecting pipe exceeds 5 meters, 20g or 60g(only for 22k24k) refrigerant shall be added per exceedingmeter. Charge according to the following list.Piping lengthAdditional amount5m 7mNo need 40g10m100gfor 7k 9k 12k 18kPush the air out of the indoor unitand 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 isis conneted 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.mfor 22k 24kfor 7K 9K 12K: B=5mfor 18K 22K 24K: B=10mPiping lengthAdditional amount5m 7mNo need 120g10m300g20m900gMax. Length: for 7K 9K : A=7mfor 12K : A=10mm02=A:K22K 24K81rofMax.Elevation:COutdoor unitIndoor unit Outdoor unitIndoor unitOil trapABOutdoor unitIndoor unitABABCAUTIONIn case more than 5 metresˈoil trapshould be installed every 5~7m.C12.7mm(1/2")

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