Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 67

[2-10 Restrictions on Refrigerant Pipes ]
Note: 2
Connecting W/WP/WL100 or 125 indoor units to an HBC
When connecting W/WP/WL100 or 125 indoor units to an HBC, connect each unit to two sets of two ports on the HBC, using two
junction pipes (Y-joints).
Connect an increaser (20A-to-32A) to the merged side of each junction pipe.
When the junction pipes are connected to Main-HBC, the branched sides of the junction pipes cannot be connected to the ports
"3 and 4" at the same time. (See Fig. 1.)
When the junction pipes are connected to 16 Sub-HBC ports, the branched sides of the junction pipes cannot be connected to the
ports "4 and 5," "8 and 9," or "12 and 13" at the same time. (See Fig. 2.)
When the junction pipes are connected to 8 Sub-HBC ports, the branched sides of the junction pipes cannot be connected to the
ports "4 and 5" at the same time. (See Fig. 3.)
When a W/WP/WL100 or a 125 model indoor unit is connected to an HBC, the pipes that connect the unit to the same set of HBC
ports cannot be branched out to connect additional units.
Note: 3
Selecting the port for indoor unit connection
The table below shows the ports for connecting the units that belong to Group 1 and Group 2.
CMB-WM350/500F-AA
CMB-WM108V-BB
CMB-WM1016V-BB
32
- chapter 2
Group 1
Ports from 1 to 3 Ports from 4 to 6
Ports from 1 to 4 Ports from 5 to 8
Ports from 1 to 4 Ports from 5 to 8
Ports from 9 to 12 Ports from 13 to 16
Group 2
BS_02_L