Haier HSU-24HD0307, HSU-24HK0307, 0010554405B installation manual Purging Method

Outdoor unit

5.Installation instruction on the outdoor part of the fresh air device

1.Remove the four screws of fresh air box from the back cover.

2.Use six screws to fix fresh air box onto the designated position on the outdoor unit. 3.Remove two screws of the pipe junction of the fresh air box, then insert the flared departure of

the change for fresh air tube into the pipe junction and then fix with the screws. 4.Use four screws to fix the fresh air box onto the back cover, as illustrated:

		Screw	Back		Fresh air tube
		hole	cover
					Flared departure
Change-for-fresh-air box
	Fresh air box	Dust
			Fresh air
	Fresh air tube			Screw	Screw
Connecting terminal		filtration	box
		mesh			Joint of tube

Fresh air signal	Fresh air tube
wire
(with guard ring)

Note:After wiring, the connecting terminals of outdoor unit and change-fresh-air as well as the wiring sheath should be placed in the change-for-fresh-air box against the rain.

6.Purging Method:

Push the air out of the indoor unit									2-way valve	3-way valve
and piping as followes:							2-way valve
									6.35mm(1/4")	12.7mm(1/2")
(1) Remove the valve cap on 2-way valve in outdoor unit.							6.35mm(1/4")
(2) Loosen by 1/2 turn the flare nut of gas pipe, which is							3-way valve
is conneted to 3-way valve.
							9.52mm(3/8")
(3) Loosen 2-way valve by 90o using hexagon wrench,
and after approx.10 sec tighten it up. Gas comes out							12.7mm(1/2")
through flare nut on wide pipe. If no gas is discharged,
tighten flare nut with specified torque.							HSU-09C03/VA(ZXF)		HSU-18C03/V(ZXF)
(4) Open 2-way and 3-way valves using specified torque.							HSU-09H03/VA(ZXF)		HSU-18H03/V(ZXF)
(5) Tighten the caps on the valves with specified torque.							HSU-12C03/VA(ZXF)		HSU-12H03/VB(ZXF)
	Tighten torque N.m						HSU-12H03/VA(ZXF)		HSU-12H03/V(ZXF)
							2-way valve	3-way valve
Valve rod		7-9
							9.52mm(3/8")	15.88mm(5/8")
Valve cap		20-25
									HSU-24C03/V(ZXF)
When connecting pipe exceeds 5 meters, 20g or 60g
									HSU-24C03/V(ZF)
(only for 22k24k) refrigerant shall be added per exceeding									HSU-24H03/V(ZXF)
meter. Charge according to the following list.									HSU-24H03/V(ZF)
	for 9k 12k 18k			for	22k 24k				HSU-24HK0307
									HSU-24HD0307
Piping length		7m 10m		5m	7m 10m
	5m					20m			HSU-22C03/V(ZXF)
Additional amount No need 40g 100g No need 120g 300g						900g			HSU-22H03/V(ZXF)
									HSU-22C03/V(ZF)
									HSU-22H03/V(ZF)
		Indoor unit					Outdoor unit
		A		A	Outdoor unit			A
Outdoor unit			B		B			Oil trap
				Indoor unit				C
								B	Indoor unit
Max.Elevation:			for 9K 12K: B=5m
			for 18K 22K 24K: B=10m				CAUTION
Max. Length:			for 9K :	A=7m					oil trap C
							In case more than 5 metres
			for 12K:	A=10m			should be installed every 5~7m.
			for 18K 22K 24K: A=20m

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 for first 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 be strictly controlled within 90o and 10 sec.)

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