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a
CAUTION DANGER
– The Y joint must be installed horizontally.
An angle of more than 10° can cause
malfunctions.
– DO NOT install the connection pipe before
installing both the indoor and outdoor units.
– Insulate the gas side and liquid side pipes to
prevent water leaks.
Connection pipe sizes for the indoor unit.
Main pipe dimensions (mm)
Model
53M
Ø 12,7 mm (5/8") Ø 6,53 mm (3/8")
70M
Ø 15,9 mm (5/8") Ø 9,52 mm (3/8")
Connection pipe sizes for the outdoor unit.
Based on the table below, select the diameters of the
connection pipes for the outdoor unit.
Main pipe dimensions (mm)
Model
Gas side
Ø 15.9 mm
105M-105T
(5/8")
Ø 15.9 mm
140T
(5/8")
Ø 15.9 mm
160T
(5/8")
18
Gas side
Liquid side
Liquid side
First Y joint
Ø 9.52 mm
FQZHN-01D
(3/8")
Ø 9.52 mm
FQZHN-01D
(3/8")
Ø 9.52 mm
FQZHN-01D
(3/8")
To use the Y joint, cut the pipe following the diagram in
"Fig. 22" to fit the internal and external pipe.
Liquid pipes
10°
10°
Gas pipes
Fig. 21
INDOOR UNIT CONFIGURATION
Set the switch
1 Master indoor unit: alternate 1 and 2 (one ON and the
other OFF)
2 Slave indoor unit: both 1 and 2 ON.
Installation
95 ±10
165 ±10
158 ±10
237 ±10
2
1
Fig. 22
Fig. 23
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