11 Maintenance and service
Installation manual
20
50A9
R32 Split series
3P600450-8T – 2022.09
11
Maintenance and service
NOTICE
General maintenance/inspection checklist.
Next to the
maintenance instructions in this chapter, a general
maintenance/inspection checklist is also available on the
Daikin Business Portal (authentication required).
The
general
maintenance/inspection
checklist
is
complementary to the instructions in this chapter and can
be used as a guideline and reporting template during
maintenance.
NOTICE
Maintenance MUST be done by an authorised installer or
service agent.
We recommend performing maintenance at least once a
year. However, applicable legislation might require shorter
maintenance intervals.
NOTICE
Applicable legislation on
fluorinated greenhouse gases
requires that the refrigerant charge of the unit is indicated
both in weight and CO
2
equivalent.
Formula to calculate the quantity in CO
2
equivalent
tonnes:
GWP value of the refrigerant × total refrigerant
charge [in kg] / 1000
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.
INFORMATION
To protect the environment, make sure to perform an
automatic pump down operation when relocating or
dismantling the unit. For the pump down procedure, refer
to the service manual or the installer reference guide.
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
Protective earth
Connection
Protective earth (screw)
,
Connector
A
,
Rectifier
Earth
Relay connector
Field wiring
Short-circuit connector
Fuse
Terminal
INDOOR
Indoor unit
Terminal strip
OUTDOOR
Outdoor unit
Wire clamp
Residual current
device
Symbol
Colour
Symbol
Colour
BLK
Black
ORG
Orange
BLU
Blue
PNK
Pink
BRN
Brown
PRP, PPL
Purple
GRN
Green
RED
Red
GRY
Grey
WHT
White
SKY BLU Sky blue
YLW
Yellow
Symbol
Meaning
A*P
Printed circuit board
BS*
Pushbutton ON/OFF, operation
switch
BZ, H*O
Buzzer
C*
Capacitor
AC*, CN*, E*, HA*, HE*, HL*,
HN*, HR*, MR*_A, MR*_B, S*, U,
V, W, X*A, K*R_*, NE
Connection, connector
D*, V*D
Diode
DB*
Diode bridge
DS*
DIP switch
E*H
Heater
FU*, F*U, (for characteristics,
refer to PCB inside your unit)
Fuse
FG*
Connector (frame ground)
H*
Harness
H*P, LED*, V*L
Pilot lamp, light emitting diode
HAP
Light emitting diode (service
monitor green)
HIGH VOLTAGE
High voltage
IES
Intelligent eye sensor
IPM*
Intelligent power module
K*R, KCR, KFR, KHuR, K*M
Magnetic relay
L
Live
L*
Coil
L*R
Reactor
M*
Stepper motor
M*C
Compressor motor
M*F
Fan motor
M*P
Drain pump motor
M*S
Swing motor
