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I
I
U
NSTALLING THE
NDOOR
NIT
Connecting the Refrigerant Pipe
Refrigerant oil
Torque wrench
Flare nut
Insulation
refrigerant pipe
Gas
refrigerant
pipe
Liquid refrigerant pipe
❊ The designs and shape are subject to
change according to the model.
16
E-
There are two refrigerant pipes of differing diameters:
1
Remove the pinch pipe on the pipes and connect the assembly pipes to
each pipe, tightening the nuts, first manually and then with a torque
wrench, a spanner applying the following torque.
Spanner
Union
N N
o o
N N
o o
2
Must use insulator which is thick enough to cover the refrigerant pipe to
protect the condensate water on the outside of pipe falling onto the floor
and the efficiency of the unit will be better.
Clamp
Insulation
refrigerant pipe
3
Cut off any excess foam insulation.
Be sure that there must be no crack or wave on the bended area.
4
5
It would be necessary to double the insulation thickness(10mm or more)
to prevent condensation even on the insulator when if the installed area is
warm and humid.
C C
C C
A A
A A
N Connect the indoor and outdoor units using pipes with flared
connections(not supplied).For the lines,use insulated,unwelded,
degreased and deoxidized copper pipe,(Cu DHP type to ISO 1337),
suitable for operating pressures of at least 4200kPa and for a burst
pressure of at least 20700kPa.Copper pipe for hydro-sanitary
|applications is completely unsuitable.
N For sizing and limits (height difference,line length,max.bends,
refrigerant charge,etc.)see the outdoor unit installation manual.
N All refrigerant connection must be accessible,in order to permit
either unit maintenance or removing it completely.
N A smaller one for the liquid refrigerant
N A larger one for the gas refrigerant
N The inside of copper pipe must be clean & has no dust.
Outer Diameter
6.35 mm (1/4")
9.52 mm (3/8")
12.70 mm (1/2")
15.88 mm (5/8")
19.05 mm (3/4")
22.23 mm (7/8")
t t
e e
If the pipes must be shortened refer to page 17.
t t
e e
U U
U U
T T
T T
I I
I I
O O
O O
N N
N N
Torque (N•m)
18
42
55
65
100
100
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