Mitsubishi Electronics PUHY-YMC installation manual How to install branch pipe

10.6. How to install branch pipe

For detail, please observe the instruction manual attached to the op- tional refrigerant branch kit.

■Joint

C

D

AB

C Pipe cutter D or

E

A To outdoor unit

B To branch piping or indoor unit

	•	Apart from the CMY-Y202-F and CMY-Y302-F gas side, there are no
ENGLISH		restrictions on the posture for attaching joints.
	•	Ensure that the branch pipes for the CMY-Y202-F and CMY-Y302-F
		gas side are attached horizontally or facing upwards (see the dia-

gram below.)

Horizontal	Facing upwards
(Facing downwards is not possible)
	Within ± 15
	degrees
Within ± 15	Within ± 15
degrees	degrees

•There is no limitation on the joint mounting configuration.

•If the diameter of the refrigerant piping selected by the procedures described on pages 13 to 14 is different from the size of the joint, match the sizes using a deformed joint.The deformed joint is included with the kit.

■Header

E Deformed joint

•When the number of pipes to be connected is smaller than the number of header branches, install a cap to the unconnected branches. The cap is included with the kit.

■Distributer (liquid)

Field piping

± 15°

Variable Constant capacity unit capacity unit

•Mount the distributor (liquid, optional CMC-30A) so that it is within ±15° in relation to the horizontal plane (see figure above).

A

B

ATo outdoor unit

B To indoor unit

•No restriction is applied to the mounting posture of the header.

•If the diameter of the refrigerant piping selected using the proce- dures described on pages 14 and the size of the joint is different, match the sizes using a deformed joint.The deformed joint is included with the kit.

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