21 Disposal
Installation and operation manual
40
RXYTQ
VRV IV+ heat pump for high ambient temperatures
4P546223-1C – 2021.11
Connectors for optional accessories:
X10A
Connector (drainpan heater)
X37A
Connector (power adapter)
X66A
Connector (remote switching COOL/HEAT selector)
Legend for wiring diagram 14~20 HP:
A1P
Printed circuit board (main)
A2P, A5P
Printed circuit board (noise filter)
A3P, A6P
Printed circuit board (inverter)
A4P, A7P
Printed circuit board (fan)
A8P
Printed circuit board (ABC I/P) (option)
BS1~BS3
(A1P)
Push button switch (MODE, SET, RETURN)
C* (A3P,
A6P)
Capacitor
DS1 , DS2
(A1P)
DIP switch
E1HC
Crankcase heater
E3H
Drain pan heater (option)
F1U, F2U
(A1P)
Fuse (T 3.15 A / 250 V)
F3U
Field fuse
F101U
(A4P, A7P)
Fuse
F401U,
F403U
(A2P, A5P)
Fuse
F601U,
(A3P, A6P)
Fuse
HAP (A*P)
Pilot lamp (service monitor is green)
K3R (A3P,
A6P)
Magnetic relay
K3R (A1P)
Magnetic relay (Y4S)
K4R (A1P)
Magnetic relay (Y1S)
K5R (A1P)
Magnetic relay (Y2S)
K6R (A1P)
Magnetic relay (E3H)
K7R (A1P)
Magnetic relay (E1HC)
K8R (A1P)
Magnetic relay (E2HC)
K9R (A1P)
Magnetic relay (Y3S)
K11R (A1P) Magnetic relay (Y5S)
L1R, L2R
Reactor
M1C, M2C
Motor (compressor)
M1F, M2F
Motor (fan)
PS (A1P,
A3P, A6P)
Switching power supply
Q1DI
Earth leakage circuit breaker (field supply)
Q1LD (A1P) Earth current detector (field supply)
R24 (A4P,
A7P)
Resistor (current sensor)
R300 (A3P,
A6P)
Resistor (current sensor)
R1T
Thermistor (air)
R3T
Thermistor (accumulator)
R4T
Thermistor (heat exchanger, liquid pipe)
R5T
Thermistor (subcool liquid pipe)
R6T
Thermistor (heat exchanger, gas pipe)
R7T
Thermistor (heat exchanger, de-icer)
R8T, R9T
Thermistor (M1C, M2C body)
R21T, R22T Thermistor (M1C, M2C discharge)
S1NPH
Pressure sensor (high)
S1NPL
Pressure sensor (low)
S1PH,
S2PH
Pressure switch (discharge)
SEG1~SEG
3 (A1P)
7-segment display
T1A
Current sensor
V1D (A3P)
Diode
V1R (A3P,
A4P, A6P,
A7P)
Power module
X*A
Connector
X1M (A1P)
Terminal block (control)
X1M (A8P)
Terminal block (power supply)(option)
Y1E
Electronic expansion valve (main)
Y2E
Electronic expansion valve (sub‑cool)
Y3E
Electronic expansion valve (liquid cooling)
Y4E
Electronic expansion valve (storage vessel)
Y1S
Solenoid valve (main)
Y2S
Solenoid valve (accumulator oil return)
Y3S
Solenoid valve (oil 1)
Y4S
Solenoid valve (oil 2)
Y5S
Solenoid valve (subcool)
Z*C
Noise filter (ferrite core)
Z*F (A2P)
Noise filter (with surge absorber)
Connectors for optional accessories:
X10A
Connector (drainpan heater)
X37A
Connector (power adapter)
X66A
Connector (remote switching COOL/HEAT selector)
21
Disposal
NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.
