Recommended Maintenance And Inspection Cycles; Shortened Maintenance And Replacement Cycles; 19 Troubleshooting - Daikin VRV IV+ RYYQ12U7Y1B Series Installer And User Manual

19 Troubleshooting

18.4.3 Recommended maintenance and
inspection cycles
Be aware that the mentioned maintenance and replacement cycles
do not relate to the warranty period of the components.
Component Inspection
Electric motor
PCB
Heat exchanger
Sensor (thermistor, etc.)
User interface and switches
Drain pan
Expansion valve
Solenoid valve
The table assumes the following conditions of use:
▪ Normal use without frequent starting and stopping of the unit.
Depending on the model, we recommend not starting and
stopping the machine more than 6 times/hour.
▪ Operation of the unit is assumed to be 10 hours/day and
2,500 hours/year.
NOTICE
▪ The table indicates main components. Refer to your
maintenance and inspection contract for more details.
▪ The table indicates
maintenance cycles. However, in order to keep the unit
operational as long as possible, maintenance work may
be required sooner. Recommended intervals can be
used for appropriate maintenance design in terms of
budgeting maintenance
Depending on the content of the maintenance and
inspection contract, inspection and maintenance cycles
may in reality be shorter than listed.
18.4.4 Shortened maintenance and replacement
cycles
Shortening of "maintenance cycle" and "replacement cycle" needs to
be considered in following situations:
The unit is used in locations where:
▪ Heat and humidity fluctuate out of the ordinary.
▪ Power fluctuation is high (voltage, frequency, wave distortion, etc.)
(the unit cannot be used if power fluctuation is outside the
allowable range).
▪ Bumps and vibrations are frequent.
▪ Dust, salt, harmful gas or oil mist such as sulphurous acid and
hydrogen sulfide may be present in the air.
▪ The machine is started and stopped frequently or operation time is
long (sites with 24 hour air-conditioning).
Recommended replacement cycle of wear parts
Component Inspection
Air filter
High efficiency filter
Fuse
Crankcase heater
Pressure containing parts
Installer and user reference guide
66
Maintenance cycle
cycle (replacements and/or
repairs)
1 year 20,000 hours
25,000 hours
5 years
5 years
25,000 hours
8 years
20,000 hours
20,000 hours
recommended intervals
and inspection fees.
Maintenance cycle
cycle (replacements and/or
repairs)
1 year 5 years
1 year
10 years
8 years
In case of corrosion,
contact your local dealer.
NOTICE
▪ The table indicates main components. Refer to your
maintenance and inspection contract for more details.
▪ The table
replacement cycles. However, in order to keep the unit
operational as long as possible, maintenance work may
be required sooner. Recommended intervals can be
used for appropriate maintenance design in terms of
budgeting maintenance and inspection fees. Contact
your dealer for details.
INFORMATION
Damage due to taking apart or cleaning interiors of units by
anyone other than our authorised dealers may not be
included in the warranty.
19 Troubleshooting
If one of the following malfunctions occur, 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, electric shock or fire. Contact your dealer.
The system MUST be repaired by a qualified service person.
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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.
If water leaks from the unit.
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 properly operate except for the above
mentioned cases and none of the above mentioned malfunctions is
evident, investigate the system according to the following
procedures.
Malfunction
If the system does not
operate at all.
If the system goes into
fan only operation, but
as soon as it goes into
heating or cooling
operation, the system
stops.
indicates recommended intervals
Measure
Turn OFF the main power
switch.
Stop the operation.
Turn OFF the power
supply.
Notify your installer and
report the malfunction
code.
Measure
▪ Check if there is no power failure. Wait
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.
▪ Check if air inlet or outlet of outdoor or
indoor unit is not blocked by obstacles.
Remove any obstacles and make sure
the air can flow freely.
▪ Check if the user interface display shows
(time to clean the air filter). (Refer to
"18 Maintenance and service" on
page 64 and "Maintenance" in the indoor
unit manual.)
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1 – 2018.09
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