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installation manual
2. Place The Pipe
Drill a hole in the wall (suitable just for the size of the wall
sleeve), then set on the fittings such as the wall sleeve and its
cover.
Bind the connecting pipe and the cables together tightly with
binding tapes.
Pass the bound connecting pipe through the wall sleeve from
outside. Make sure of the pipe allocation not to damage the
copper tubes.
3
5
6
7
4
Connect the pipes.
Expel the air with a vacuum pump or refrigerant.
Open the service valves of the outdoor unit .
Check the refrigerant leakage. Check all the joints
with the leak detector or soap water.
Cover the joints of the connecting pipe with the
insulation foam, and bind them well with the tapes to
prevent potential leakage.
8.1 Length and drop height permitted of the
refrigerant piping
8. REFRIGERANT PIPE(the unit with the
twins function)
Note: Reduced length of the branching tube is the 0.5m/1.64ft
of the equivalent length of the pipe.
Table.8-1
Permitted value
Piping
Total pipe length (Actual)
Indoor unit to indoor unit drop height
(farthest from the line
pipe branch)
(farthest from the line
pipe branch)
Indoor unit-outdoor unit
drop height
30m/98.42ft
18K+18K
24K+24K/
30K+30K
50m/164.04ft
15m/49.21ft
10m/32.8ft
20m/65.8ft
0.5m/1.64ft
L+L1+L2
L1,L2
L1-L2
H1
H2
Fig.8-1
A
L
L1
L2
Outdoor unit
The line branch pipe
Drop height between indoor
unit and outdoor unit H20m/65.8ft
Indoor unit to intdoor unit
drop height H0.5m/1.64ft
Indoor unit
Note: All used branch pipe must be produced by Midea,
otherweise it causes malfunction. The indoor units should
be installed equivalently at the both side of the U type branch
pipe.
8.3 Size of joint pipes for outdoor unit
Model
Gas side Liquid side
Φ15.9/0.626in
Φ15.9/0.626in
Φ15.9/0.626in
Φ9.5/0.375in
Φ9.5/0.375in
Φ9.5/0.375in
the size of main pipe(mm)
36K
48K
60K
Size of joint pipes for 410A outdoor unit Table.8-3
Base on the following tables, select the diameters of the
outdoor unit connective pipes. In case of the main
accessory pipe large than the main pipe, take the large one
for the selection.
The 1st
branching pipe
8.2 Size of joint pipes for indoor unit
Gas side
Capacity of
indoor unit
(A)
Size of main pipe(mm)
Liquid side
Φ12.7/0.5in
Φ15.9/0.626in
Φ15.9/0.626in
Φ6.35/0.25in
Φ9.5/0.375in
Φ9.5/0.375in
18K
24K
30K
Size of joint pipes for 410A indoor unit
Table.8-2
CE-FQZHN-01C
CE-FQZHN-01C
CE-FQZHN-01C
CE-FQZHN-01C
CE-FQZHN-01C
CE-FQZHN-01C
Available
branching pipe
18


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