13 Technical data
Installer and user reference guide
55
RXYSQ8~12TMY1B
VRV IV-S system air conditioner
4P404225-1B – 2016.03
H1P~H8P
Light‑emitting diode (service monitor orange)
H2P:
▪ Prepare, test: Flickering
▪ Malfunction detection: Light up
HAP
Light-emitting diode (service monitor is green)
K1R
Magnetic relay (A3P)
K2M
Magnetic contactor (M1C) (A3P)
K3R
Magnetic relay (A2P)
K3R
Magnetic relay (Y1S)
K5R
Magnetic relay (Y3S)
K7R
Magnetic relay (E1HC)
L1R
Reactor
M1C
Motor (compressor)
M1F, M2F
Motor (upper and lower fan)
PS
Switching power supply (A1P) (A3P)
Q1RP
Reverse phase protector
R2, R3
Resistor
R24
Resistor (current sensor) (A4P) (A5P)
R95
Resistor (current limiting)
R1T
Thermistor (air)
R2T
Thermistor (suction 1)
R3T
Thermistor (discharge)
R4T
Thermistor (heat exchanger de-icer)
R5T
Thermistor (subcool heat exchanger)
R6T
Thermistor (liquid pipe)
R7T
Thermistor (suction 2)
S1NPH
High pressure sensor
S1NPL
Low pressure sensor
S1PH
High pressure switch
V1CP
Safety devices input
V1R
IGBT module (A4P) (A5P)
V1R
Diode bridge IGBT module (A3P)
X1A, X2A
Connector (M1F)
X3A, X4A
Connector (M2F)
X1M
Terminal strip (power supply)
X1M
Terminal strip (control) (A1P)
Y1E
Electronic expansion valve (main)
Y2E
Electronic expansion valve (subcool heat exchanger)
Y1S
Solenoid valve
Y3S
Solenoid valve (4‑way valve)
Z1C~Z8C
Noise filter (ferrite core)
Z1F
Noise filter (with surge absorber)