Pipe Selection; Twinning Kit Selection - Mitsubishi Electric PURY-(E)P-YLM-A (-BS) Installation Manual

9-2. Pipe selection

Use refrigerant piping made of phosphorus deoxidized copper (copper and copper alloy
seamless pipes) that meets local requirements. Pipe joints should also meet local
requirements. Keep the inner and outer surfaces of the pipes clean and free of sulphur,
oxides, dust/dirt, shaving particles, oils, moisture, or any other contaminants.
- Contaminants on the inside of the refrigerant piping will cause the refrigerant oil to deteriorate
and cause the compressor to malfunction.
Use refrigerant pipes for use with R410A refrigerant system. Piping for systems for use with other types of refrigerants
may not be able to be used.
Use refrigerant pipes with the thicknesses specified in the table below.
Size [mm (in)] Radial thickness [mm (mil)]
ø6.35 (ø1/4)
ø9.52 (ø3/8)
ø12.7 (ø1/2)
ø15.88 (ø5/8)
ø19.05 (ø3/4)
ø22.2 (ø7/8)
ø25.4 (ø1)
ø28.58 (ø1-1/8)
ø31.75 (ø1-1/4)
ø34.93 (ø1-3/8)
ø41.28 (ø1-5/8)

9-3. Twinning kit selection

Select appropriate twinning kits (sold separately), referring to the sections below.
* Use an adapter, if necessary, to connect a refrigerant pipe to a twinning pipe of a different diameter.
* The maximum number of connectable ports is 48.
9-3-1. 2-Branch Joint Pipe
A 2-Branch Joint Pipe is used to connect multiple indoor units to a port, or to connect two sub BC controllers.
(1) R2 system
Total capacity of downstream indoor units
80 or below
(2) Hybrid City Multi system
・Connect the pipes on site, referring to the HBC controller Installation Manual.
・CMY-Y102SS-G2 is used in an R2 system, and cannot be used in a Hybrid City Multi system.
9-3-2. Joint Pipe Kit
A Joint Pipe Kit is used to connect an indoor unit of P100 model or above.
(1) R2 system
Indoor unit model
P100 to P250
(2) Hybrid City Multi system
・Connect the pipes on site, referring to the HBC controller Installation Manual.
・CMY-R160-J1 is used in an R2 system, and cannot be used in a Hybrid City Multi system.
WT07282X01
Type
0.8 (32) Type-O
0.8 (32) Type-O
0.8 (32) Type-O
1.0 (40) Type-O
1.2 (48) Type-O
1.0 (40) Type-1/2H or H
1.0 (40) Type-1/2H or H
1.0 (40) Type-1/2H or H
1.0 (40) Type-1/2H or H
1.1 (44) Type-1/2H or H
1.2 (48) Type-1/2H or H
1.4 (56) Type-1/2H or H
Kit model
CMY-Y102SS-G2
Kit model
CMY-R160-J1
GB-21