Haier 1U35BEFFRA - Refrigerant Piping Installation Procedure; Refrigerant Pipe Sizing; Pipe Connection and Fastening

Amax Bmax C D E
21
1U50S2SR1FA
1U7S2SR1FA
1U50JEFFRA
1U68REFFRA
10 15 5 7
7
20
1U25S2SQ1FA
1U35S2SQ1FA
1U25BEFFRA
1U35BEFFRA
1U50S2SR1FA
1U7S2SR1FA
1U50JEFFRA
1U68REFFRA
1.
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
B
Outdoor unit
Indoor unit
Oil trap
To bend a pipe, give the roundness as large as possible not to crush the pipe ,
and the bending radius should be 30 to 40
mm or longer.
Connecting the pipe of gas side
rst makes working easier.
TheconnectionpipeisspecializedforR32.
Half union
Flare nut
Torque wrench
CAUTION
Be careful that matters, such as wastes of sand
s,water,
, etc. shall not enter the pipe.
ThestandardpipelengthisCm.IfitisoverDm,thefunctionoftheunitwillbeaffected.Ifthepipe
has
to be lengthened, the refrigerant should be charged,
according to E g/m. But the charge of refrigerant
must
be conducted by profes
sional air conditioner engineer. Before adding additional refrigerant,
perform
air
purging from the refrigerant pipes and indoor unit using a vacuum pump,then
Spanner
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Pipe Diameter( ) Fastening torque
Liquid side6.35mm(1/4") 18N.m
Liquid/Gas side9.52mm(3/8") 42 N.m
Gas side 12.7mm(1/2") 55N.m
Gas side 15.88mm(5/8") 60 N.m
Max.Elevation:
In case the elevation A is more
than 5m, oil trap shoud be
installed every 5~7
Max. Length:
In case the pipe length B is
more thanDm, the refrigerant
should be charged, according
to E g/m.
Connection of pipes
charge
additional refrigerant.
Amax
Bmax
2.
1U25S2SQ1FA
1U35S2SQ1FA
1U25BEFFRA
1U35BEFFRA
1U25S2PJ1FA 1U35S2PJ1FA
10 15 5 2010
1U25S2PJ1FA
1U35S2PJ1FA