14 Piping diagram
Installation manual
15
35A5V1B
R32 Split series
3P650253-15Q – 2022.12
Symbol
Meaning
RC
Receiver
S*C
Limit switch
S*L
Float switch
S*NG
Refrigerant leak detector
S*NPH
Pressure sensor (high)
S*NPL
Pressure sensor (low)
S*PH, HPS*
Pressure switch (high)
S*PL
Pressure switch (low)
S*T
Thermostat
S*RH
Humidity sensor
S*W, SW*
Operation switch
SA*, F1S
Surge arrester
SR*, WLU
Signal receiver
SS*
Selector switch
Symbol
Meaning
SHEET METAL
Terminal strip fixed plate
T*R
Transformer
TC, TRC
Transmitter
V*, R*V
Varistor
V*R
Diode bridge, Insulated-gate
bipolar transistor (IGBT) power
module
WRC
Wireless remote controller
X*
Terminal
X*M
Terminal strip (block)
Y*E
Electronic expansion valve coil
Y*R, Y*S
Reversing solenoid valve coil
Z*C
Ferrite core
ZF, Z*F
Noise filter
14
Piping diagram
14.1
Piping diagram: Outdoor unit
M
·7.0· CuT
·7.0· CuT
·4.8· CuT
·4.8· CuT
·6.4· CuT ·6.4· CuT
·6.4· CuT
·6.4· CuT
·7.9· CuT
·7.9· CuT
·9.5· CuT
·9.5· CuT
·9.5· CuT
·9.5· CuT
·9.5· CuT
·9.5· CuT
·9.5· CuT
·Ø.4.0 x ID.2.0· CuT
h
k
j2
h
g
h
c
a
b
d
m
m
o
n
j3
m
ı
ARXD25A, ARXD35A
a
Liquid field piping
j3
Discharge pipe thermistor
b
Gas field piping
k
Heat exchanger
c
Liquid stop valve
l
4-way valve (ON: heating)
d
Gas stop valve
m
Muffler
e
Liquid receiver
n
Compressor
f
Filter
o
Accumulator
g
Electronic expansion valve
HPS
High pressure switch (automatic reset)
h
Muffler with filter
M
Propeller fan
i
Capillary tube
Refrigerant flow: cooling
j1
Outdoor temperature thermistor
Refrigerant flow: heating
j2
Heat exchanger thermistor