703
V MULTI
18.2.5 Piping system
(1) Twin type
Model FDC508HES3
Models FDC808HES3,1008HES3
Thermistor
(Th
I
-R)
Thermistor
(Th
O
-D)
Thermistor
(Th
O
-R)
Solenoid
valve (SV2)
Solenoid
valve (SV1)
Thermistor
(Th
O
-A)
Thermistor
(Th
I
-A)
Heat exchanger
Heat exchanger
High pressure switch (63H
2
)
(For fan motor control)
Strainer
Strainer Strainer
StrainerCapillary
tube
Capillary tube
Capillary tube
Capillary
tube
Capillary
tube
Liquid line
(ø9.52)
Gas line
(ø19.05)
Service valve
(Flare connecting)
Service valve
(Flare connecting)
Cooling cycle
Heating cycle
4way valve
Compressor
Accumulators
Check valve
Check
joint
Check joint
Check joint
Oil separator
Sub-
cooling
coil
Branch
pipe
(Brazing)
(ø9.52)
(ø15.88)
Strainer
Strainer
Capillary
tube
(ø9.52)
(ø15.88)
Flare connecting
Branch pipe
(Brazing)
Flare connecting
Outdoor unitIndoor unitIndoor unit
Heat
exchanger
Thermistor
Capillary tube
Liquid line
Thermistor
Cooling cycle
Heating cycle
4way valve
Muffler
Muffler
Capillary tube
Capillary tube
Accumlator
Heat
exchanger
Lower Upper
(Th
O
-A)
(Th
I
-A)
(Th
I
-R)
Thermistor
Service valve
(Brazing)
Branch
pipe
(Brazing)
Branch
pipe (Brazing)
High pressure switch(63H
2
)
(For fan motor control)
High pressure
switch(63H
1
)
(For protection)
Check valve
Compressor
Service valve
(Flare connecting)
Thermistor (Th
O
-R)
Only case of FDC808HES3
Thermistor (Th
O
-R)
Only case of FDC1008HES3
Strainer
Strainer
( )
( )( )
Gsa line
Flare connecting
808 : ø25.4
1008 : ø28.58
( )
808 : ø12.7
1008 : ø15.88
Strainer
Strainer
(ø9.52) (ø9.52)
308 : ø15.88
408,508 : ø19.05
308 : ø15.88
408,508 : ø19.05
Outdoor unitIndoor unitIndoor unit
Note (1) Refer to page 715 for piping size after branching.
Note (1) Refer to page 716 for piping size after branching.
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