Electrical Wiring Work; Internal Wiring - Parts Table - Panasonic U-4ML5DPQ Manuel D'installation

To avoid compressor breakdown. Do not charge the
refrigerant more than the specified amount.
If the total refrigerant cannot be charged while the
outdoor unit is at a standstill, it is possible to charge
the refrigerant by operating the outdoor unit using the
refrigerant charge function (refer to "Setting mode 2"
on page 18) and follow "Procedure 3: Charging while
the outdoor unit is operating" on page 13.
Procedure 3: Charging while the outdoor unit is operating
See the figure in "How to connect the tank?" on page 11.
1 Completely open the gas side stop valve and liquid side stop
valve. Valve A must be left fully closed.
2 Close the front panel and turn on the power to all indoor units
and the outdoor unit.
3 Open valve A immediately after starting of the compressor.
4 Charge the additional refrigerant in its liquid state through the
service port of the liquid line stop valve.
5 While the unit is at a standstill and under setting mode 2 (refer to
Checks before initial start-up, "Setting the mode" on page 18),
set the required function A (additional refrigerant charging
operation) to (ON). Then operation starts. The blinking H2P
ON
led indicates test operation and the remote controller indicates
(test operation) and
6 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 5.
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.
7 After the refrigerant charge hose is removed, make sure to close
valve A.
11. E
LECTRICAL WIRING WORK
All wiring must be performed by an authorized
electrician.
All field supplied components and all electric
construction should comply with the applicable local
and national codes.
To persons in charge of electrical wiring work:
Do not operate the unit until the refrigerant piping is
complete. (Running it before the piping is ready will break
the compressor.)
11.1. Internal wiring – Parts table
L............................. Live
N ............................ Neutral
........... Field wiring
.................... Terminal strip
......................... Connector
......................... Protective earth (screw)
.......................... Connection
....................... Relay connector
U-4~6ML5DPQ + U-4~6ML5XPQ
Urban Multi air conditioner
4PW40731-1
(external control).
........................... 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)
A3P ................ * ..... Printed circuit board (noise filter)
A4P ................ * ..... Printed circuit board (C/H selector)
BS1~BS5 ............... Push button switch (mode, set, return, test,
reset)
C1~C3.................... Capacitor
C4 .................. * ..... Capacitor
DS1 ........................ DIP switch
E1HC ..................... Crankcase heater
F1U, F4U ....... * ..... Fuse (T 6.3 A/250 V)
F1U (A1P) ......# ..... Fuse (T 6.3 A/250 V)
F3U (A1P) ......# ..... Fuse (T 6.3 A/250 V)
F4U (A1P) ......# ..... 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)
Prepare, test: blinking
H2P ........................ Malfunction detection: light up
HAP................ * ..... Light emitting diode (service monitor green)
HAP (A1P) .....# ..... Light emitting diode (service monitor green)
HAP (A2P) .....# ..... Light emitting diode (service monitor green)
K1M................ * ..... Magnetic contactor (M1C)
K1M (A1P) .....# ..... Magnetic contactor
K1R ........................ Magnetic relay (Y1S)
K2R ........................ Magnetic relay (Y2S)
K3R ........................ Magnetic relay (Y3S)
K4R ........................ Magnetic relay (E1HC)
K5R ........................ Magnetic relay
K6R ................# ..... Magnetic relay
L1R ........................ Reactor
M1C ....................... Motor (compressor)
M1F........................ Motor (fan) (upper)
M2F........................ Motor (fan) (lower)
PS .......................... Switching power supply
Q1DI....................... Field earth leakage breaker (300 mA)
R1 .................. * ..... Resistor (current limiting)
R1 (A1P) ........# ..... Resistor
R1 (A2P) ........# ..... Resistor
R2 .................. * ..... Resistor (current sensor)
R2 (A2P) ........# ..... Resistor
R1T ........................ Thermistor (air)
Installation manual
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