9 Technical data
Installation and operation manual
27
RXYSQ4~6TAY1B
VRV IV-S system air conditioner
4P482256-1 – 2017.03
S1PH
High pressure switch
Y1E
Electronic expansion valve (main)
Y2E
Electronic expansion valve (subcool heat exchanger)
Y1S
Solenoid valve
Y3S
Solenoid valve (4‑way valve)
Heating
Cooling
9.3
Wiring diagram: Outdoor unit
The wiring diagram is delivered with the unit, located at the inside of
the service cover.
Notes:
1
This wiring diagram applies only to the outdoor unit.
2
Symbols (see below).
3
Symbols (see below).
4
Refer to the installation manual for connection wiring to
INDOOR-OUTDOOR transmission F1-F2 and OUTDOOR-
OUTDOOR transmission F1-F2.
5
Refer to the installation manual for how to use the BS1~BS5
and DS1 switches.
6
When operating, do not short-circuit protective device S1PH.
7
Colours (see below).
Symbols:
L
Live
N
Neutral
Field wiring
Terminal strip
Connector
Fixed connector
Movable connector
Protective earth (screw)
Noiseless earth
Terminal
Colours:
BLK
Black
BLU
Blue
BRN
Brown
GRN
Green
ORG
Orange
RED
Red
WHT
White
YLW
Yellow
Legend for wiring diagram:
A1P
Printed circuit board (main)
A2P
Printed circuit board (noise filter)
A3P
Printed circuit board (inverter)
A4P
Printed circuit board (fan 1)
A5P
Printed circuit board (fan 2)
BS1~BS5
Push button switch
C32, C67
Capacitor
DS1
DIP switch
E1HC
Crankcase heater
F1U, F2U
Fuse (T 3.15 A / 250 V) (A1P)
F101U
Fuse (5 A, DC650 V) (A4P) (A5P)
F400U
Fuse (T 6.3 A / 250 V) (A2P)
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)
Summary of Contents for RXYSQ4TAY1B
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