Mitsubishi Electric PURY-EP200YLM-A, Service Handbook, Page: 71 / 434

[2-10 Restrictions on Refrigerant Pipes ]
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HWE1314A GB
2-10-3 BC Controller Connection Method
(1) Size of the pipe that fits the standard BC controller ports
(E)P200 - (E)P350 models
The ports of the BC controller accommodates the pipes on P63-P140 models of indoor units.To connect other types of indoor
units, follow the procedure below.
* BC controllers can only be connected to (E)P200 - (E)P350 models of outdoor units.
Unit : mm [inch]
Operation
Pipe sections
High-pressure side (liquid) Low-pressure side (gas)
Outdoor unit side (E)P200 ø15.88 [5/8"] (Brazed connection) ø19.05 [3/4"] (Brazed connection)
(E)P250 ø19.05 [3/4"] (Brazed connection) ø22.2 [7/8"] (Brazed connection)
(E)P300 ø19.05 [3/4"] (Brazed connection) ø22.2 [7/8"] (Brazed connection)
(E)P350 ø19.05 [3/4"] (Brazed connection) ø28.58 [1-1/8"] (Brazed connection)
Indoor unit side ø9.52 [3/8"] (Brazed connection) ø15.88 [5/8"] (Brazed connection)
Indoor Indoor Indoor
Indoor
Indoor Indoor
BC controller
Maximum of 3 units per port
Total capacity of P80 or below
(All units connected to the same port
must be in the same operating mode.)
Branch joint (Model name:CMY-Y102S-G2)
(Optional accessory)
Note 2
Junction pipe kit
(Model name:
CMY-R160-J1)
(Optional accessory)
P50 model or below P63-P80 models P100-P250 models
Note3
Note4
A
B
Note 1
Reducer
(Standard
supplied parts)
To outdoor unit
Connection: Brazed connection
Group the indoor units together that connected to the same port if multiple indoor units are connected to the
same port on BC controller. Also share one thermo-stat such as on remote controller so that they turn on/off
at the same time.
Note 4