Maintenance And Service; Precautions For Maintenance And Service; About The Refrigerant; After-Sales Service - Daikin VRV 5 RXYA8A7Y1B Installation And Operation Manual

7 Maintenance and service

7 Maintenance and service
7.1 Precautions for maintenance and
service
CAUTION
instructions" [ 4 7] to acknowledge all
See "3 User safety
related safety instructions.
NOTICE
NEVER inspect or service the unit by yourself. Ask a
qualified service person to perform this work.
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.
7.2

About the refrigerant

CAUTION
See "3 User safety instructions" [ 4 7] to acknowledge all
related safety instructions.
This product contains fluorinated greenhouse gases. Do NOT vent
gases into the atmosphere.
Refrigerant type: R32
Global warming potential (GWP) value: 675
Periodical inspections for refrigerant leaks may be required
depending on the applicable legislation. Contact your installer for
more information.
NOTICE
Applicable legislation on fluorinated greenhouse gases
requires that the refrigerant charge of the unit is indicated
both in weight and CO
2
Formula to calculate the quantity in CO
tonnes: GWP value of the refrigerant × total refrigerant
charge [in kg]/1000
Contact your installer for more information.
7.3

After-sales service

7.3.1 Recommended maintenance and
inspection
Since dust collects when using the unit for several years,
performance of the unit will deteriorate to some extent. As taking
apart and cleaning interiors of units requires technical expertise and
in order to ensure the best possible maintenance of your units, we
recommend to enter into a maintenance and inspection contract on
top of normal maintenance activities. Our network of dealers has
access to a permanent stock of essential components in order to
keep your unit in operation as long as possible. Contact your dealer
for more information.
When asking your dealer for an intervention, always state:
▪ The complete model name of the unit.
▪ The manufacturing number (stated on the nameplate of the unit).
▪ The installation date.
▪ The symptoms or malfunction, and details of the defect.
Installation and operation manual
14
equivalent.
equivalent
2
WARNING
▪ Do NOT modify, disassemble, remove, reinstall or
repair the unit yourself as incorrect dismantling or
installation may cause an electrical shock or fire.
Contact your dealer.
▪ In case of accidental refrigerant leaks, make sure there
are no naked flames. The refrigerant itself is entirely
safe, non-toxic and mildly flammable, but it will
generate toxic gas when it accidentally leaks into a
room where combustible air from fan heaters, gas
cookers, etc. is present. Always have qualified service
personnel confirm that the point of leakage has been
repaired or corrected before resuming operation.
8

Troubleshooting

If one of the following malfunctions occurs, take the measures
shown below and contact your dealer.
WARNING
Stop operation and shut OFF the power if anything
unusual occurs (burning smells etc.).
Leaving the unit running under such circumstances may
cause breakage, electrical shock or fire. Contact your
dealer.
The system MUST be repaired by a qualified service person.
Malfunction
If a safety device such as a fuse, a
breaker or an earth leakage breaker
frequently actuates or the ON/OFF
switch does NOT properly work.
The operation switch does NOT work
well.
If the user interface display indicates the
unit number, the operation lamp flashes
and the malfunction code appears.
If the system does NOT operate properly except for the above
mentioned cases and none of the above mentioned malfunctions is
evident, investigate the system in accordance with the following
procedures.
Malfunction
If a refrigerant leak ▪ Actions will be taken by the system. Do
occurs (error code / NOT turn OFF the power supply.
)
▪ Notify your installer and report the
malfunction code.
If the system does not ▪ Check if there is no power failure. Wait
operate at all. until power is restored. If power failure
occurs during operation, the system
automatically restarts immediately after
power is restored.
▪ Check if no fuse has blown or breaker is
activated. Change the fuse or reset the
breaker if necessary.
If the system goes into ▪ Check if air inlet or outlet of outdoor or
fan only operation, but indoor unit is not blocked by obstacles.
as soon as it goes into Remove any obstacles and make sure
heating or cooling the air can flow freely.
operation, the system
▪ Check if the user interface display shows
stops.
on the home screen. Refer to the
installation
delivered with the indoor unit.
Measure
Turn OFF the main power
switch.
Turn OFF the power
supply.
Notify your installer and
report the malfunction
code.
Measure
and operation manual
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P739915-1 – 2023.12