17 Technical data
Installation and operation manual
22
FXFA20~125A2VEB
VRV system air conditioner
3P599604-1C – 2020.10
Symbol
Meaning
PTC*
PTC thermistor
Q*
Insulated gate bipolar transistor
(IGBT )
Q*C
Circuit breaker
Q*DI, KLM
Earth leak circuit breaker
Q*L
Overload protector
Q*M
Thermo switch
Q*R
Residual current device
R*
Resistor
R*T
Thermistor
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
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
