REMQ8~16P7Y1B
VRVIII System air conditioner
4PW37156-1
Installation manual
12
8.1.
Internal wiring – Parts table
Refer to the wiring diagram sticker on the unit. The abbreviations
used are listed below:
A1P~A8P .............Printed circuit board (main, noise filter, inverter,
fan, sub, current sensor, current sensor, fan)
BS1~BS5 .............Push button switch (mode, set, return, test, reset)
C1,C63,C66 .........Capacitor
E1HC~E3HC .......Crankcase heater
F1U ......................Fuse (DC 650 V, 8 A, B) (A4P, A8P)
F1U ......................Fuse (250 V, 3.15 A, T) (A5P)
F1U,F2U ..............Fuse (250 V, 3.15 A, T) (A1P)
F5U ......................Field fuse (field supply)
F400U ..................Fuse (250 V, 6.3 A, T) (A2P)
H1P~H8P.............Pilot lamp
H2P: Under preparation or in test operation when
blinking
H2P: Malfunction detection when light up
HAP .....................Pilot lamp (service monitor - green) (A1P, A5P)
K1,K3 ...................Magnetic relay
K1R......................Magnetic relay (K2M–A1P, Y5S–A5P)
K2,K4 ...................Magnetic contactor (M1C)
K2M .....................Magnetic contactor for M2C
(only for REMQ10~16)
K2R......................Magnetic relay (K3M–A1P, Y6S–A5P)
K3M .....................Magnetic contactor for M3C
(only for REMQ14~16)
K3R~K5R.............Magnetic relay (Y1S~Y3S–A1P)
K5R......................Magnetic relay (for option–A5P)
K6R......................Magnetic relay (Y7S–A5P)
K7R~K9R.............Magnetic relay (E1HC~E3HC–A1P)
K11R....................Magnetic relay (Y4S–A1P)
L1R ......................Reactor
M1C~M3C ...........Motor (compressor)
M1F,M2F ..............Motor (fan)
PS ........................Switching power supply (A1P,A3P)
Q1DI ....................Earth leakage breaker (field supply)
Q1RP ...................Phase reversal detection circuit
R1T ......................Thermistor (air–A1P, fin–A3P)
R3T~R9T .............Thermistor (H/E gas, H/E-de-icer, sub cool H/E
gas, sub cool H/E liquid, H/E liquid, suction, liquid)
R10 ......................Resistor (current sensor) (A4P, A8P)
R31T~R33T .........Thermistor (discharge) (M1C~M3C)
R50,R59...............Resistor
R90 ......................Resistor (current sensor)
R95 ......................Resistor (current limiting)
S1NPH.................Pressure sensor (high)
S1NPL .................Pressure sensor (low)
S1PH~S3PH ........Pressure switch (high)
SD1......................Safety devices input
T1A ......................Current sensor (A6P, A7P)
V1R......................Diode bridge (A3P)
V1R......................Power module (A4P, A8P)
V2R......................Power module (A3P)
X1A,X4A ..............Connector (M1F, M2F)
X1M .....................Terminal strip (power supply)
X1M .....................Terminal strip (control) (A1P)
Y1E~Y3E .............Electronic expansion valve (main, charge,
subcool)
Y1S~Y7S ............ Solenoid valve (RMTG, 4 way valve–PPE, 4 way
valve–H/E gas, RMTL, hot gas, EV bypass,
RMTO)
Z1C~Z10C .......... 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
8.2.
Optional parts connector
X7A ..................... Operation output (A5P)
X9A ..................... Power supply (adapter) (A5P)
NOTE
(1) This wiring diagram only applies to the outdoor unit.
(4) When using the option adaptor, refer to the
installation manual.
(5) Refer to the installation manual, for connection
wiring to indoor-outdoor transmission F1-F2, outdoor-
outdoor transmission F1-F2, outdoor-multi trans-
mission Q1-Q2 and on how to use BS1~BS5 and DS1,
DS2 switch.
(6) Do not operate the unit by short-circuiting
protection device S1PH~S3PH.
NOTE
■
Use copper conductors only.
■
For connection wiring to the central remote
controller, refer to the installation manual of the
central remote controller.
■
Use insulated wire for the power cord.
