Haier HSU-18CI03 Installation Manual

Also see for HSU-18CI03: Operation manual Operation manual

Contents

Outdoor unit6.Purging Method:73-way valve2-way valve6.35mm(1/4") 12.7mm(1/2")9.52mm(3/8")15.88mm(5/8")Push the air out of the indoor unitand piping as followes:(1) Remove the valve cap on 2-wayvalve in outdoor unit.(2) Loosen by 1/2 turn the flare nut ofgas pipe, which is conneted to3-way valve.(3) Loosen 2-way valve by 90o usinghexagon wrench, and after approx.10 sec tighten it up. Gas comes outthrough flare nut on wide pipe. If nogas is discharged, tighten flare nutwith specified torque.(4) Open 2-way and 3-way valvesusing specified torque.(5) Tighten the caps on the valveswith specified torque.Valve rodValve cap7-920-25Tighten torque N.mWhen connecting pipe exceeds 5 meters, 16g refrigerant shall be addedper exceeding meter. Charge according to the following list.Piping lengthAdditional amount5m 7m 10mNo need 32g(This must be strictly controlled within 90o and 10 sec.)Note: When extending piping, air inside piping shall be removed by using externalrefrigerant gas, charge according to the following list.80gBrand new outdoor unit is charged 50g or 80g(only for 24k unit) more refrigerant than regulated weight.Only for first installation, this extra 50g or 80g(only for 24k unit) can be used to purge air in pipes.During this procedure, 50g or 80g(only for 24k unit) refrigerant will be discharged in piping.3-way valve2-way valveSFST18TR3SFST24TR3

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