Restrictions On Refrigerant Pipe And Water Pipe Size - Mitsubishi Electric PUHY-M200YNW-A1 Service Handbook

[2-10 Restrictions on Refrigerant Pipes ]
2-10-3

Restrictions on Refrigerant Pipe and Water Pipe Size

(1) Refrigerant pipe between outdoor unit and Hydro unit (Part A)
1) Hydro units connectable to outdoor units
Standard models
Unit model
PUHY-M200
PUHY-M250
PUHY-M300
Outdoor
unit
side
PUHY-M350
PUHY-M400
PUHY-M450
PUHY-M500
2) Connecting pipe diameter of outdoor unit
Standard models
Unit model
PUHY-M200
PUHY-M250
PUHY-M300
Outdoor
unit
side
PUHY-M350
PUHY-M400
PUHY-M450
PUHY-M500
3) Connecting pipe diameter of hydro unit
CMH-WM250V-A
CMH-WM350V-A
CMH-WM500V-A
If the connecting pipe diameter of hydro unit differs from that of
outdoor unit, expand or reduce the pipe diameter at the inlet of
the hydro unit.
*1. When the piping length from the outdoor unit to the hydro unit is less than 90 m (295 ft)
*2. When the piping length from the outdoor unit to the hydro unit is 90 m (295 ft) or more
*3. When the piping length from the outdoor unit to the hydro unit is less than 40 m (131 ft)
*4. When the piping length from the outdoor unit to the hydro unit is 40 m (131 ft) or more
*5. When the unit is used alone
BS_02_E
Hydro unit
Model name
*1 CMH-WM250V-A
*2
*3
*4 CMH-WM350V-A
*5
CMH-WM500V-A
Liquid Gas
ø9.52 (ø3/8)
*1 ø9.52 (ø3/8)
ø22.2
*2 ø12.7 (ø1/2)
(ø7/8)
*3 ø9.52 (ø3/8)
*4 ø12.7 (ø1/2)
ø12.7 (ø1/2)
*5 ø12.7 (ø1/2)
ø28.58
(ø1-1/8)
ø15.88 (ø5/8)
ø15.88 (ø5/8)
Liquid Gas
ø9.52 (ø3/8) ø22.2 (ø7/8)
ø12.7 (ø1/2) ø25.4 (ø1)
ø15.88 (ø5/8) ø25.4 (ø1)
High-efficient models
Unit model
PUHY-EM200
*1
PUHY-EM250
*2
*3
PUHY-EM300
Outdoor
unit *4
side
PUHY-EM350
PUHY-EM400 *5
PUHY-EM450
PUHY-EM500
High-efficient models
Unit model
PUHY-EM200
*1
PUHY-EM250
*2
*3
PUHY-EM300
Outdoor
unit *4
side
PUHY-EM350
PUHY-EM400 *5
PUHY-EM450
PUHY-EM500
Hydro unit
Model name
CMH-WM250V-A
CMH-WM350V-A
CMH-WM500V-A
Liquid Gas
ø9.52 (ø3/8)
ø22.2
ø9.52 (ø3/8)
(ø7/8)
ø12.7 (ø1/2)
ø9.52 (ø3/8)
ø12.7 (ø1/2)
ø12.7 (ø1/2)
ø28.58
(ø1-1/8)
ø12.7 (ø1/2)
ø15.88 (ø5/8)
ø15.88 (ø5/8)
27
chapter 2 -