To Perform A Test Run; Troubleshooting; Fault Diagnosis Using Led On Outdoor Unit Pcb; Disposal - Daikin RXJ20M5V1B Manual De Instalación

11 Troubleshooting

10.3

To perform a test run

Prerequisite: Power supply MUST be in the specified range.
Prerequisite: Test run may be performed in cooling or heating
mode.
Prerequisite: Test run should be performed in accordance with the
operation manual of the indoor unit to make sure that all functions
and parts are working properly.
1 In cooling mode, select the lowest programmable temperature.
In heating mode, select the highest programmable temperature.
Test run can be disabled if necessary.
2 When the test run is finished, set the temperature to a normal
level. In cooling mode: 26~28°C, in heating mode: 20~24°C.
3 The system stops operating 3 minutes after the unit is turned
OFF.
INFORMATION
▪ Even if the unit is turned OFF, it consumes electricity.
▪ When the power turns back on after a power break, the
previously selected mode will be resumed.
11 Troubleshooting
11.1 Fault diagnosis using LED on
outdoor unit PCB
LED is... Diagnosis
flashing Normal.
▪ Check the indoor unit.
ON ▪ Turn the power OFF and back ON, and
check the LED within approximately 3
minutes.
If the LED is ON again, the outdoor unit
PCB is faulty.
OFF 1 Supply voltage (for power saving).
2 Power supply fault.
3 Turn the power OFF and back ON, and
check the LED within approximately 3
minutes.
If the LED is OFF again, the outdoor unit
PCB is faulty.
DANGER: RISK OF ELECTROCUTION
▪ When the unit is not operating, the LEDs on the PCB
are turned off in order to save power.
▪ Even when the LEDs are off, the terminal block and the
PCB may be powered.
12

Disposal

NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.
Installation manual
14
13

Technical data

▪ A subset of the latest technical data is available on the regional
Daikin website (publicly accessible).
▪ The full set of latest technical data is available on the Daikin
Business Portal (authentication required).
13.1

Wiring diagram

The wiring diagram is delivered with the unit, located inside of
the outdoor unit (bottom side of the top plate).
13.1.1

Unified wiring diagram legend

For applied parts and numbering, refer to the wiring diagram on the
unit. Part numbering is by Arabic numbers in ascending order for
each part and is represented in the overview below by "*" in the part
code.
Symbol Meaning Symbol Meaning
Circuit breaker
Connection
A
, Connector
Earth
Field wiring
Fuse
Indoor unit
INDOOR
Outdoor unit
OUTDOOR
Residual current
device
Symbol Colour Symbol
BLK Black ORG
BLU Blue PNK
BRN Brown PRP, PPL
GRN Green RED
GRY Grey WHT
YLW
Symbol
A*P
BS*
BZ, H*O
C*
AC*, CN*, E*, HA*, HE*, HL*,
HN*, HR*, MR*_A, MR*_B, S*, U,
V, W, X*A, K*R_*, NE
D*, V*D
DB*
DS*
E*H
FU*, F*U, (for characteristics,
refer to PCB inside your unit)
FG*
H*
RXJ-M(9)_RXA-A(9)_RXM-R(9)_ARXM-R(9)
Protective earth
Protective earth (screw)
Rectifier
Relay connector
Short-circuit connector
Terminal
Terminal strip
Wire clamp
Colour
Orange
Pink
Purple
Red
White
Yellow
Meaning
Printed circuit board
Pushbutton ON/OFF, operation
switch
Buzzer
Capacitor
Connection, connector
Diode
Diode bridge
DIP switch
Heater
Fuse
Connector (frame ground)
Harness
R32 Split system air conditioners
3P650253-1 – 2021.02