Specifications

RXYQQ8~20T7Y1B
VRV IV System Air Conditioner
4P345099-1 – 2013.04
Installation and operation manual
23
K4R........................ Magnetic relay (Y2S)
K5R........................ Magnetic relay (Y4S)
K6R........................ Magnetic relay (Y5S)
K7R........................ Magnetic relay (E1HC)
K8R........................ Magnetic relay (E2HC)
K10R...................... Magnetic relay (option)
K11R...................... Magnetic relay (Y1S)
L1R~L3R ............... Reactor
M1C, M2C ............. Motor (compressor)
M1F,M2F................ Motor (fan)
PS.......................... Switching power supply (A1P, A3P, A6P)
Q1LD ..................... Leakage detection circuit (A1P)
Q1RP..................... Phase reversal detection circuit (A1P)
R1.......................... Resistor
R2, R3 ................... Resistor (A3P, A6P)
R24........................ Resistor (current sensor) (A4P, A7P)
R77........................ Resistor (current sensor) (A3P, A6P)
R78........................ Resistor (A3P, A6P)
R313...................... Resistor (current sensor)
R865, R867 ........... Resistor
R1T........................ Thermistor (air) (A1P)
R21T, R22T ........... Thermistor (discharge) (M1C, M2C, discharge)
R3T........................ Thermistor (accumulator)
R4T........................ Thermistor (heat exc. liq. pipe)
R5T........................ Thermistor (subcool liq. pipe)
R6T........................ Thermistor (heat exc. gas pipe)
R7T........................ Thermistor (heat exc.de-icer)
R8T........................ Thermistor (M2C body)
S1NPH................... Pressure sensor (high)
S1NPL ................... Pressure sensor (low)
S1PH~S4PH.......... Pressure switch (high)
SE1~SE3............... 7-segment display
T1A........................ Current sensor
V1R........................ Power module (A3P, A6P)
V1R........................ Power module (A4P, A7P)
V2R........................ Power module
X1A~X4A............... Connector (M2F, M1F)
X3A, X5A, X6A ...... Connector (check the residual charge)
X1M ....................... Terminal strip (power supply)
X1M ....................... Terminal strip (control) (A1P)
Y1E........................ Electronic expansion valve (main)
Y2E........................ Electronic expansion valve (injection)
Y1S........................ Solenoid valve (main)
Y2S........................ Solenoid valve (accumulator oil return)
Y3S........................ Solenoid valve (oil 1)
Y4S........................ Solenoid valve (oil 2)
Z1C~Z7C............... Noise filter (ferrite core)
Z1F ........................ Noise filter (with surge absorber)
L1,L2,L3................. Live
N............................ Neutral
............... Field wiring
................. Terminal strip
......................... Connector
......................... Terminal
.......................... Protective earth (screw)
BLK........................ Black
BLU........................ Blue
BRN....................... Brown
GRN....................... Green
GRY....................... Grey
ORG ...................... Orange
PNK ....................... Pink
RED....................... Red
WHT ...................... White
YLW ....................... Yellow
Connector for optional accessories:
X14A...................... Connector (drain pan heater)
X37A...................... Connector (power adapter)
X66A...................... Connector (remote switching cool/heat selector)
12.3. System overview of field wiring
Field wiring consists of power supply (always including earth) and
indoor-outdoor communication (= transmission) wiring.
Examples:
1 Field power supply (with earth leakage protector)
2 Main switch
3 Earth connection
4 Outdoor unit
5 Indoor unit
6 User interface
7 Power supply wiring (sheathed cable) (230 V)
8 Transmission wiring (sheathed cable) (16 V)
Power supply 3N~ 50 Hz
Power supply 1~ 50 Hz
Earth wiring
12.4. Opening and closing the electrical component box
INFORMATION
The wiring diagram on the outdoor unit is only for the
outdoor unit. For the indoor unit or optional electrical
components, refer to the wiring diagram of the indoor unit.
CAUTION
 Do not apply excessive force when opening the
electronic component box cover. Excessive force can
deform the cover, resulting in entering of water to
cause equipment failure.
 When closing the electrical component box cover,
make sure that the sealing material on the lower back
side of the cover is not caught and bend towards the
inside.
1
2
444
3
27 7
88
3
6668
555
1
8 8 8
8 8
RXYQQ14~20
RXYQQ8~12
6x
2x