Hydro Unit Connection Method - Mitsubishi Electric PUHY-M200YNW-A1 Service Handbook

[2-10 Restrictions on Refrigerant Pipes ]
(2) Water pipe between Hydro unit and indoor units
1) Hydro unit's header pipe (Part A')
CMH-WM250V-A
Hydro unit side CMH-WM350V-A
CMH-WM500V-A
2) Water pipe between Hydro unit's header pipe to indoor unit (Sections a, b, c, d, e, f, g)
Indoor unit
PEFY-W·VMA O.D. 22.0 mm
* For other indoor units, refer to the indoor unit installation manual.
* The pipe diameter depends on the capacity of indoor units.
Refer to the indoor unit installation manual for details.
2-10-4

Hydro Unit Connection Method

(1) Size of the pipe that fits the standard Hydro unit ports
A
B
C
D
28
- chapter 2
Hydro unit
Model name Inlet pipe size
40A (housing joint)
40A (housing joint)
50A (housing joint)
Connection size
Water inlet Water outlet
O.D. 22.0 mm
E E E E
Outlet pipe size
40A (housing joint)
40A (housing joint)
50A (housing joint)
Pipe size
Water return Water out
I.D. 20 mm I.D. 20 mm
A To outdoor unit
B End connection (brazing)
C Hydro unit
D To main piping
E Indoor unit
BS_02_E