Piping System - Mitsubishi Heavy Industries SRK25GZ-L1 Handbook

8.2.5 Piping system

Models FDTN208HEN-S1, 258HEN-S1, FDTNP208HEN-S, 258HEN-S
FDT208HEN-SA, 258HEN-SA
Indoor unit
Strainer
Capillary
tube
Strainer
Models FDTNP308HEN-S, 308HES-S, 408HES-S
FDT308HEN-SA, 308HES-SA, 408HES-SA
Indoor unit
Strainer
Capillary
tube
Strainer
Outdoor unit
Gas line
Service valve
(ø15.88)
(Flare connecting)
Check joint
Thermistor
(Th -A)
I
Heat exchanger
Thermistor
Solenoid
(Th -R)
I
valve
Thermistor
Check
joint
Liquid line
208:ø6.35
( )
258:ø9.52
Strainer
Service valve
Flare
(Flare connecting)
connecting
Outdoor unit
Gas line
Service valve
308:ø15.88
( )
(Flare connecting)
408:ø19.05
Check joint
Thermistor
(Th -A)
I
Heat exchanger
Thermistor
Solenoid
(Th -R)
I
valve
Thermistor
Check
joint
Liquid line
(ø9.52)
Strainer
Service valve
Flare
(Flare connecting)
connecting
Cooling cycle
Heating cycle
High pressure switch (63H )
2
(For fan motor control)
4way valve
High pressure switch (63H )
1
(Only case of FDTNP type)
Check joint
Muffler
Compressor
Accumulators
Capillary
tube
(Th -D)
O Strainer
Check valve
Capillary tube
Cooling cycle
Heating cycle
High pressure switch (63H )
2
(For fan motor control)
4way valve
High pressure switch (63H )
1
(Only case of FDTNP type)
Check joint
Muffler
Compressor
Accumulators
Capillary
tube
(Th -D)
O
Strainer
Check valve
Capillary tube
FDT ( N ) -H
Thermistor
(Th -A)
O
Heat exchanger
Thermistor
(Th -R)
O
Sub-
cooling
coil
Solenoid valve
Thermistor
(Th -A)
O
Heat exchanger
Thermistor
(Th -R)
O
Sub-
cooling
coil
Solenoid valve
297