9 | Maintenance and service
Installer and user reference guide
35
RXYTQ
VRV IV+ heat pump for high ambient temperatures
4P561157-1B – 2021.11
9.4.2 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 non-combustible, but it will
generate toxic gas when it accidentally leaks into a room where combustion 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.
9.4.3 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
cycle
Maintenance cycle
(replacements and/or repairs)
Electric motor 1 year 20,000 hours
PCB 25,000 hours
Heat exchanger 5 years
Sensor (thermistor, etc.) 5 years
User interface and switches 25,000 hours
Drain pan 8 years
Expansion valve 20,000 hours
Solenoid valve 20,000 hours
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 10hours/day and 2,500hours/year.
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