Installation manual
11
250B8W1B
Split system air conditioner
4PW25544-1A
8.1.
Internal wiring
–
Parts table
Refer to the wiring diagram sticker on the unit. The abbreviations
used are listed below:
A1P-A6P ................Printed circuit board
BS1-BS5 ................Push button switch
(mode, set, return, test, forced defrost)
C26,C63,C66 .........Capacitor
DS1 ........................Dip switch
E1HC~E2HC ..........Crankcase heater
F1U ........................Fuse (250 V, 5 A, B)(A4P)
F1U,F2U.................Fuse (250 V, 10 A, B)(A1P)
F5U ........................Field fuse
H1P-H7P ................Light emitting diode (service monitor - orange)
HAP........................Pilot lamp (service monitor - green)
K1...........................Magnetic relay
K2...........................Magnetic contactor (M1C)
K2M........................Magnetic contactor (M2C)
K1R-K7R ................Magnetic relay (K2M, Y1S~Y4S, E1HC+E2HC)
K2S ........................Magnetic relay (M2C)
L1R.........................Reactor
M1C,2C ..................Motor (compressor)
M1F ........................Motor (fan)
PS ..........................Switching power supply
Q1DI.......................Earth leakage breaker (field supply) (
≤
30 mA)
Q1RP .....................Phase reversal detect circuit
R10.........................Resistor (current sensor)
R50,R59 .................Resistor
R95.........................Resistor (current limiting)
R1T ........................Thermistor (fin) (A2P)
R1T ........................Thermistor (air) (A1P)
R2T ........................Thermistor (suction)
R31T~R32T............Thermistor (discharge) (M1C~M2C)
R4T ........................Thermistor (coil-deicer)
R5T ........................Thermistor (coil-outlet)
S1NPH ...................Pressure sensor (high)
S1NPL....................Pressure sensor (low)
S1PH,S3PH ...........Pressure switch (high)
T1A.........................Current sensor
T1R ........................Transformer
V1CP,V2CP ............Safety devices input
V1R,V2R ................Power module (A3P,A2P)
X1A,X2A.................Connector (Y1E,Y2E)
X1M........................Terminal strip (control)(A1P)
X2M........................Terminal strip (indoor power supply)
X3M........................Terminal (control)
X4M........................Terminal strip (power supply)
Y1E,Y2E.................Expansion valve (electronic type) (main subcool)
Y1S ........................Solenoid valve (4-way valve)
Y2S ........................Solenoid valve (hotgas bypass)
Y3S ........................Solenoid valve (receiver gas purge)
Y4S ........................Solenoid valve (liquid pipe)
Z1C-Z4C ................Noise filter (ferrite core)
Z1F.........................Noise filter (with surge absorber)
............... Field wiring
L1,L2,L3................. Live
N ............................ Neutral
......................... Connector
........................... Wire clamp
......................... Protective earth (screw)
BLK........................ Black
BLU........................ Blue
BRN ....................... Brown
GRY ....................... Gray
ORG ...................... Orange
PNK ....................... Pink
RED ....................... Red
WHT ...................... White
YLW ....................... Yellow
8.2.
Optional connectors
X36A...................... Connector (addaptor power supply)
8.3.
Power circuit and cable requirements
A power circuit (see table below) must be provided for connection of
the unit. This circuit must be protected with the required safety
devices, i.e. a main switch, a slow blow fuse on each phase and an
earth leakage breaker.
When using residual current operated circuit breakers, be sure to use
high-speed type circuit breakers of maximum 30 mA that can handle
higher harmonics.
Be sure to install a main switch for the complete system.
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.
Phase and
frequency
Voltage
Recommended
fuses
Transmission
line section
RZQ200
3 N~50 Hz
400 V
32 A
H05VV-U4G2.5
RZQ250
3 N~50 Hz
400 V
32 A
H05VV-U4G2.5
NOTE
■
Select the power supply cable in accordance with
relevant local and national regulations.
■
Wire size must comply with the applicable local
and national code.
■
Specifications for local wiring power cord and
branch wiring are in compliance with IEC60245.
■
WIRE TYPE H05VV(*)
*Only in protected pipes (use H07RN-F when
protected pipes are not used).
