Twinning Kit Selection; Pipe Connection Example - Mitsubishi Electric CITY MULTI PUHY-HP-TNU-A Série Manuel D'installation

9-3. Twinning kit selection

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
72 or below
73 to 144
145 to 240
241 or above
Line branching for the 1st branching point
Outdoor unit model
HP144 to HP240
Header branching
Total capacity of downstream indoor units
72 or below
144 or below
240 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
HP144 to HP240

9-4. Pipe connection example

・Example of pipe connection between outdoor units
Ⓐ
Ⓑ
Kit model
CMY-Y102SS-G2
CMY-Y102LS-G2
CMY-Y202S-G2
CMY-Y302S-G2
Kit model
CMY-Y202S-G2
Number of branches
4
8
10
Kit model
CMY-Y100CBK3
Ⓑ
Ⓐ
Ⓒ
Ⓒ
Kit model
CMY-Y104-G
CMY-Y108-G
CMY-Y1010-G
Ⓐ 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.