Internal Wiring - Parts Table; Optional Parts Cool/Heat Selector - Panasonic U-5MX4XPQ Installation Manual

8.1. Internal wiring – Parts table
Refer to the wiring diagram sticker on the unit. The abbreviations
used are listed below:
A1P~7P ..................Printed circuit board
BS1~5 ....................Push button switch (mode, set, return, test,
reset)
C1,C63,C66 ...........Capacitor
DS1,2 .....................Dip switch
E1HC~3HC ............Crankcase heater
F1U ........................Fuse (250 V, 8 A, B) (A4P) (A8P)
F1U,2U ...................Fuse (250 V, 3.15 A, T) (A1P)
F5U ........................Field fuse
F400U ....................Fuse (250 V, 6.3 A, T) (A2P)
H1P~8P..................Light emitting diode (service monitor - orange)
HAP........................Pilot lamp (service monitor - green)
K1...........................Magnetic relay
K2...........................Magnetic contactor (MIC)
K2M,3M..................Magnetic contactor (M2C,M3C)
K1R,R.....................Magnetic relay (K2M,K3M)
K3R~5R..................Magnetic relay (Y1S~Y3S)
K6R~9R..................Magnetic relay (E1HC~E3HC)
L1R.........................Reactor
M1C~3C .................Motor (compressor)
M1F,2F ...................Motor (fan)
PS ..........................Switching power supply (A1P,A3P)
Q1DI.......................Earth leakage breaker (field supply)
Q1RP .....................Phase reversal detection circuit
R1T ........................Thermistor (fin) (A2P)
R1T ........................Thermistor (air) (A1P)
R2T ........................Thermistor (suction)
R4T ........................Thermistor (coil-deicer)
R5T ........................Thermistor (coil-outlet)
R6T ........................Thermistor (liquid-pipe receiver)
R7T ........................Thermistor (accumulator)
R10.........................Resistor (current sensor) (A4P) (A8P)
R31T~33T ..............Thermistor (discharge) (M1C~M3C)
R50,59....................Resistor
R95.........................Resistor (current limiting)
S1NPH ...................Pressure sensor (high)
S1NPL....................Pressure sensor (low)
S1PH,3PH..............Pressure switch (high)
T1A.........................Current sensor (A6P,A7P)
SD1 ........................Safety devices input
V1R ........................Power module (A4P,A8P)
V1R,V2R ................Power module (A3P)
X1A,X4A.................Connector (M1F,M2F)
X1M........................Terminal strip (power supply)
X1M........................Terminal strip (control) (A1P)
X1M........................Terminal strip (A5P)
Y1E,2E ...................Expansion
subcool)
Y1S ........................Solenoid valve (hotgas bypass)
Y2S ........................Solenoid valve (oil return)
Y3S ........................Solenoid valve (4 way valve)
Z1C-7C...................Noise filter (ferrite core)
Z1F.........................Noise filter (with surge absorber)
Installation manual
11
valve (electronic type) (main,
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
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-
multi transmission 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.
8.2.

Optional parts cool/heat selector

S1S........................ Selector switch (fan, cool/heat)
S2S........................ Selector switch (cool/heat)
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.
U-5~18MX4XPQ
Urban Multi air conditioner
4PW28163-1