9.2. Internal wiring – Parts table
L .............................Live
N.............................Neutral
...................Terminal strip
............Field wiring
.........................Terminal strip
..........................Connector
..........................Protective earth
...........................Connection
........................Relay connector
............................Functional earthing
...........................Terminal
..........................Movable connector
..........................Fixed connector
BLU ........................Blue
BRN........................Brown
GRN .......................Green
RED........................Red
WHT .......................White
YLW........................Yellow
ORG .......................Orange
BLK ........................Black
A1P ........................Printed circuit board (main)
A2P ............... #......Printed circuit board (inverter)
A2P ................*......Printed circuit board (service)
A3P ................*......Printed circuit board (noise filter)
BS1~BS5................Push button switch (mode, set, return, test,
reset)
C1~C3 ....................Capacitor
C4...................*......Capacitor
DS1 ........................Dip switch
E1H ........................Bottom plate heater
E1HC......................Crankcase heater
F1U,F4U.........*......Fuse (T 6.3 A/250 V)
F1U,F2U........ #......Fuse (A 31.5 A/500 V)
F3U~F5U....... #......Fuse (T 6.3 A/250 V)
F6U ........................Fuse (T 5.0 A/250 V)
FINTH.............*......Thermistor (fin)
H1P~H8P ...............Light emitting diode (service monitor orange)
H2P: Prepare, test: blinking
H2P: Malfunction detection: light up
HAP (A1P)..............Light emitting diode (service monitor green)
HAP (A2P)..... #......Light emitting diode (service monitor green)
K1M........................Magnetic contactor (M1C)
K2M .............. #......Magnetic contactor
K1R ........................Magnetic relay (Y1S)
K2R ........................Magnetic relay (Y2S)
K3R ........................Magnetic relay (Y3S)
K4R ........................Magnetic relay (E1HC)
K5R ........................Magnetic relay
L1R.........................Reactor
L1R,L3R ........ #......Reactor
M1C........................Motor (compressor)
M1F ........................Motor (fan) (upper)
Installation manual
14
M2F ....................... Motor (fan) (lower)
PS.......................... Switching power supply
Q1DI ...................... Field earth leakage breaker (300 mA)
R1,R2 .................... Resistor
R1T........................ Thermistor (air)
R2T........................ Thermistor (discharge)
R2T................ # ..... Thermistor (M1C discharge)
R3T........................ Thermistor (suction 1)
R4T................ * ..... Thermistor (heat exchanger)
R4T................ # ..... Thermistor (subcooling heat exchanger)
R5T........................ Thermistor (suction 2)
R6T................ * ..... Thermistor (subcooling heat exchanger)
R6T................ # ..... Thermistor (heat exchanger)
R7T........................ Thermistor (liquid pipe 1)
R8T........................ Thermistor (liquid pipe 2)
R9T................ # ..... Thermistor (power module)
S1NPH................... Pressure sensor (high)
S1NPL ................... Pressure sensor (low)
S1PH ..................... Pressure switch (high)
V1R........................ Power module
V2R................ * ..... Diode module
V2R................ # ..... Power module
V3R........................ Diode module
V1T ................ * ..... IGBT (Insulated Gate Bipolar Transistor)
X1M ....................... Terminal strip (power supply)
X2M ....................... Terminal strip (control)
Y1E........................ Electronic expansion valve (main)
Y3E........................ Electronic expansion valve (subcool)
Y1S........................ Solenoid valve (4 way valve)
Y2S........................ Solenoid valve (hot gas)
Y3S........................ Solenoid valve (unload circuit)
Z1C~Z8C ....... * ..... Noise filter (ferrite core)
Z1C~Z7C ....... # ..... Noise filter (ferrite core)
Z1F~Z4F........ * ..... Noise filter
Z1F~Z3F........ # ..... Noise filter
Parts table legend
*
For V1 models only
#
For Y1 models only
Notes
1
This wiring diagram only applies to the outdoor unit.
4
Refer to the wiring diagram sticker (on the back of the
front plate) for instructions on how to use BS1~BS5 and
DS1-1, DS1-2 switches.
5
Do not operate the unit by short-circuiting protection
device S1PH.
7
Refer to the installation manual for connection wiring to
indoor-outdoor transmission F1-F2.
RRRQ011~016AAV1+Y1
Outdoor unit for air to water heat pump
4PW55782-1B