Size Of The Pipe That Fits The Sub Bc Controller Ports - Mitsubishi Electric PURY-(E)P200 Service Handbook

[ II Restrictions ]

(3) Size of the pipe that fits the sub BC controller ports

To Main BC controller
*1
Reducer
(Standard supplied parts)
P50 model or below P63-P140 models P200-P250 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.
1) To connect P15-P50 models of indoor units use the reducer that is supplied with the BC controller.
2) To connect the units between the P200 and P250 models of indoor units (or when the total capacity of indoor units is
141 or above), use a junction pipe kit and merge the two nozzles.
3) To connect multiple indoor units to a port (or to a junction pipe)
Maximum total capacity of connected indoor units: P140 or below (in a system with a junction pipe: P250 or below)
Maximum number of connectable indoor units: 3 units
Branch joint: Use CMY-Y102S-G2 (optional accessory).
Refrigerant pipe selection (size of the pipes in sections A and B in the figure above): Select the proper based on the total
capacity of the downstream indoor units, using the table below as a reference.
T o a t c l a p a c y t i
P 1 4 0 r o
P 1 4 1
On the BC controller
side
HWE07130
Connection: Brazed connection
BC controller (sub)
Indoor Indoor
f o n i d o r o u n s t i
b e o l w
- P 2 5 0
O p r e t a o i n
Total capacity of the in-
door units that are con-
nected to the BC
controller
P200 model or below
P201 - P300
P301 - P350
P351 - P400
P401 - P450
Branch joint (Model name:CMY-Y102S-G2)
(Optional accessory)
*2
Junction pipe kit
(Model name:
CMY-R160-J)
(Optional accessory)
A B
Indoor Indoor
3* Maximum of 3 units per port
Total capacity of P140 or below
(All units connected to the same port
must be in the same operating mode.)
L q i u d i p p i e
ø 9 5 . 2 3 [ 8 / ] "
ø 9 5 . 2 3 [ 8 / ] "
High-pressure side
(liquid)
ø15.88 [5/8"]
(Brazed connection)
ø19.05 [3/4"]
(Brazed connection)
ø22.2 [7/8"]
(Brazed connection)
- 53 -
Indoor Indoor
G a s p p i
ø 1 5 8 . 8 5 [
ø 1 9 0 . 5 3 [
P p i e s e t c o i n s
Low-pressure side
Liquid pipe side
(gas)
ø19.05 [3/4"]
(Brazed connection)
(Brazed connection)
ø22.2 [7/8"]
(Brazed connection)
(Brazed connection)
ø28.58 [1-1/8"]
(Brazed connection)
(Brazed connection)
Unit : mm [inch]
e
8 / ] "
4 / ] "
Unit : mm [inch]
ø9.52 [3/8"]
ø12.7 [1/2"]
ø15.88 [5/8"]
GB