To Designate The Master User Interface; Maintenance And Service; Precautions For Maintenance And Service; About The Refrigerant - Daikin VRV 5-S RXYSA8AMY1B Installation And Operation Manual

7 Maintenance and service

6.5.2

To designate the master user interface

1 Press the operation mode selector button of the current master
user interface for 4 seconds. In case this procedure was not yet
performed, the procedure can be executed on the first user
interface operated.
Result: The display showing
centralised control) of all slave user interfaces connected to the
same outdoor unit flashes.
2 Press the operation mode selector button of the controller that
you wish to designate as the master user interface.
Result: Designation is completed. This user interface is
designated as the master user interface and the display
showing (changeover under centralised control) vanishes.
The displays of other user interfaces show
under centralised control).
Refer to the operation manual of the user interface.
7 Maintenance and service
7.1 Precautions for maintenance and
service
CAUTION
instructions" [ 4 8] 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
instructions" [ 4 8] to acknowledge all
See "3 User safety
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.
Installation and operation manual
14
(changeover under
(changeover
equivalent.
equivalent
2
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.
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.
Measure
Turn OFF the main power
switch.
Turn OFF the power
supply.
Notify your installer and
report the malfunction
code.
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752781-1B – 2024.02