Mitsubishi Electric City Multi CMB-P1016NU-G, Service Handbook

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[
II
Restrictions ]
4. Connecting the BC controller
(1) Size of the pipe that fits the standard BC controller ports
P72 and P96 models
Unit: mm [in]
Operation
Pipe sections
High-pressure side (gas) Low-pressure side (gas)
Heat source unit
side PQRY-P72TGMU-A ø15.88 [5/8"] (Brazed connection) ø19.05 [3/4"] (Brazed connection)
PQRY-P96TGMU-A ø19.05 [3/4"] (Brazed connection) ø22.2 [7/8"] (Brazed connection)
Indoor unit side ø9.52 [3/8"] (Flare connection) ø15.88 [5/8"] (Flare connection)
Indoor Indoor Indoor
Indoor
Indoor Indoor
BC controller
Maximum of 3 units per port
Total capacity of P160 or below
(All units connected to the same port
must be in the same operating mode.)
Branch joint (Model name:CMY-Y102S-G)
(Optional
accessory)
*2
Junction pipe kit
(Model name:
CMY-R160-J)
(Optional accessory)
P18 model or below P24-P54 models P72-P96 models
The ports of the BC controller accommodates the pipes on P18-P54 models of indoor units.
To connect other types of indoor units, follow the procedure below.
3*
A
B
*1
Reducer
(Standard
supplied parts)
To heat source unit
Connection: Brazed connection