Maintenance And Service; Precautions For Maintenance And Service - Daikin FXKA25AMVEB User Reference Manual

10 Maintenance and service

10.1 Precautions for maintenance and service

FXKA-A
VRV system air conditioner
4P747548-2 – 2023.11
CAUTION
See "4 User safety
NOTICE
NEVER inspect or service the unit by yourself. Ask a qualified service person to
perform this work. However, as end user, you may clean the air filter and the unit
exterior.
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
Do NOT wipe the controller operation panel with benzine, thinner, chemical dust
cloth, etc. The panel may get discoloured or the coating peeled off. If it is heavily
dirty, soak a cloth in water-diluted neutral detergent, squeeze it well and wipe the
panel clean. Wipe it with another dry cloth.
Following symbols may occur on the indoor unit:
Symbol Explanation
Measure the voltage at the terminals of main circuit capacitors or
electrical components before servicing.
NOTICE
When cleaning the heat exchanger, make sure to remove the electronic components
above it. Water or detergent might deteriorate the insulation of electronic
components and result in burnout of these components.
DANGER: RISK OF ELECTROCUTION
Disconnect the power supply for more than 10 minutes, and measure the voltage at
the terminals of main circuit capacitors or electrical components before servicing.
The voltage MUST be less than 50 V DC before you can touch electrical components.
For the location of the terminals, see the warning label for persons performing
service and maintenance.
a
A1P
C-
C+
A1P Main printed circuit board
a Multimeter
C Residual voltage measuring points
10
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4
instructions" [ 18] to acknowledge all related safety instructions.
Maintenance and service
Installer and user reference guide
33