Field Wiring; Internal Wiring - Parts Table - Panasonic U-5MX3XPQB Installationsanleitung

3 When the specified amount of refrigerant is charged, push the
button. Then operation stops.
BS3 RETURN
The operation automatically stops within 30 minutes.
If the refrigerant charge cannot be finished within 30 minutes,
repeat step 2.
If the operation stops immediately after restart, there is a
possibility that the system is overcharged.
The refrigerant cannot be charged more than this amount.
4 After the refrigerant charge hose is removed, make sure to fully
open the liquid stop valve. Otherwise the piping may burst due to
blocked liquid.
5 After the refrigerant is charged, turn on the power for the indoor
units and for the outdoor unit.
7. F
IELD WIRING
All field wiring and components must be installed by a
licensed electrician and must comply with relevant local
and national regulations.
The field wiring must be carried out in accordance with the
wiring diagrams and the instructions given below.
Be sure to use a dedicated power circuit. Never use a
power supply shared by another appliance. This can lead
to electric shock or fire.
Do not operate until refrigerant piping work is completed.
(If operated before completion of the piping work, the
compressor may break down.)
Never remove a thermistor, sensor, etc., when connecting
power wiring and transmission wiring.
(If operated without
compressor may break down.)
This product's reversed phase protection detector only
works when the product started up.
The reversed phase protection detector is designed to stop
the product in the event of an abnormalities when the
product is started up.
Replace two of the three phases (L1, L2, and L3) during
reverse-phase protection circuit operation.
Reversed phase detection is not performed while the
product is operating.
If there exists the possibility of reversed phase after an
momentary black out and the power goes on and off while
the product is operating, attach a reversed phase
protection circuit locally. Running the product in reversed
phase can break the compressor and other parts.
7.1. Internal wiring – Parts table
Refer to the wiring diagram sticker on the unit. The abbreviations
used are listed below:
A1P-A6P................ Printed circuit board
BS1-5..................... Push button switch (mode, set, return, wiring
check, reset)
C63,66 ................... Capacitor
DS1~3 ................... Dip switch
E1HC~3HC............ Crankcase heater
F1U........................ Fuse (250 V, 5 A, B)(A4P)
F1U,2U .................. Fuse (250 V, 10 A, B)(A1P)
F5U........................ Field fuse
H1P-8P .................. Light emitting diode (service monitor - orange)
HAP ....................... Pilot lamp (service monitor - green)
K1 .......................... Magnetic relay
U-5~48MX3XPQB
Urban Multi air conditioner
4PW21867-1A
thermistor, sensor, etc., the
K2........................... Magnetic contactor (MIC)
K2M-3M ................. Magnetic contactor (M2C-M3C)
K1R-15R ................ Magnetic relay
L1R ........................ Reactor
M1C,2C,3C ............ Motor (compressor)
M1F........................ Motor (fan)
PS .......................... Switching power supply
Q1DI....................... Earth leakage breaker (field supply)
Q1RP ..................... Phase reversal detect circuit
R10 ........................ Resistor (current sensor)
R50-59 ................... Resistor
R95 ........................ Resistor (current limiting)
R1T ........................ Thermistor (fin) (A2P)
R1T ........................ Thermistor (air) (A1P)
R2T ........................ Thermistor (suction)
R31T~33T.............. Thermistor (discharge)
R4T ........................ Thermistor (coil-deicer)
R5T ........................ Thermistor (coil-outlet)
R6T ........................ Thermistor (liquid-pipe receiver)
S1NPH ................... Pressure sensor (high)
S1NPL.................... Pressure sensor (low)
S1PH,3PH.............. Pressure switch (high)
T1A ........................ Current sensor (A5P,A6P)
T1R ........................ Transformer
V1CP...................... Safety devices input
V1R ........................ Power module (A3P)
V1R,V2R ................ Power module (A2P)
X1A,X2A ................ Connector (Y1E,Y2E)
X1M........................ Terminal strip (Power supply)
X1M........................ Terminal strip (control)(A1P)
Y1E,2E................... Expansion
subcool)
Y1S ........................ Solenoid valve (hotgas bypass)
Y2S ........................ Solenoid valve (receiver gas purge)
Y3S ........................ Solenoid valve (liquid pipe)
Y4S ........................ Solenoid valve (4 way valve)
Z1C-7C .................. 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
valve (electronic type) (main,
Installation manual
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