Twinning Kit Selection; Pipe Connection Example - Mitsubishi Electric CITY MULTI PUHY-P-YKB-A1 Installation Manual

9-3-1. Indoor unit twinning kit

Select a proper indoor unit twinning kit (sold separately) based on the total capacity of the downstream indoor units,

using the table below as a reference.

Line branching

Total capacity of downstream indoor units

200 or below

201 to 400

401 to 650

651 or above

Line branching for the 1st branching point

Outdoor unit model

P450 to P650

P700 to P1350

Header branching

Total capacity of downstream indoor units

200 or below

400 or below

650 or below

* Use an adapter, if necessary, to connect a refrigerant pipe to a twinning pipe of a different diameter.

9-3-2. Outdoor unit twinning kit

Select a proper outdoor unit twinning kit (sold separately) based on the total capacity of the outdoor units, using the

table below as a reference.

Total capacity of outdoor units

P400 to P650

P700 to P900

P950 to P1350

・Example of pipe connection between outdoor units

Ⓐ

KD79S703H01

Kit model

CMY-Y102SS-G2

CMY-Y102LS-G2

CMY-Y202S-G2

CMY-Y302S-G2

Kit model

CMY-Y202S-G2

CMY-Y302S-G2

Number of branches

4

8

10

Kit model

CMY-Y100VBK3

CMY-Y200VBK2

CMY-Y300VBK3

Ⓑ

Ⓐ

Ⓒ

Kit model

CMY-Y104-G

CMY-Y108-G

CMY-Y1010-G

Ⓐ

Ⓑ

Ⓒ

GB-20

On-site piping

Twinning Kit

The pipe section before the twinning pipe must

have at least 500 mm (19-11/16 in) of straight

section.