Operation manual
9
HXHD125A7V1B
VRVIII system air conditioner
4PW62583-1 – 11.2010
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.
1
If the system does not operate at all
■
Check if there is no power failure.
Wait until power is restored. If power failure occurs during
operation, the system automatically restarts immediately after
the power supply is recovered.
■
Check if no fuse has blown or breaker has worked. Change the
fuse or reset the breaker if necessary.
2
If the system goes into fan only operation, but as soon as it
goes into heating or cooling operation, the system stops
■
Check if air inlet or outlet of outdoor or indoor unit is not blocked
by obstacles. Remove any obstacle and make it well-ventilated.
■
Check if the remote controller display shows "
" (time to
clean the air filter). (Refer to "Maintenance" in the indoor unit
manual.)
3
The system operates but cooling or heating is insufficient
■
Check if air inlet or outlet of outdoor or indoor unit is not blocked
by obstacles.
■
Remove any obstacle and make it well-ventilated.
■
Check if the air filter is not clogged. (Refer to "Maintenance" in
the indoor unit manual.)
■
Check the temperature setting.
■
Check the fan speed setting on your remote controller.
■
Check for open doors or windows. Shut doors and windows to
prevent wind from coming in.
■
Check if there are too many occupants in the room during
cooling operation
■
Check if the heat source of the room is excessive.
■
Check if direct sunlight enters the room. Use curtains or blinds.
■
Check if the air flow angle is proper.
If after checking all above items, it is impossible to fix the problem
yourself, contact your dealer and state the symptoms, the complete
model name of the air conditioner (with manufacturing number if
possible) and the installation date (possibly listed on the warranty card).
11. A
FTER
-
SALES
SERVICE
AND
WARRANTY
Warranty period
■
This product includes a warranty card that was filled in by the
dealer at the time of installation. The completed card has to be
checked by the customer and stored carefully.
■
If repairs to the air conditioner are necessary within the warranty
period, contact your dealer and keep the warranty card at hand.
11.1. After-sales service
■
Recommendations for 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 air conditioner 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 air conditioner
•
the manufacturing number (stated on the nameplate of the
unit)
•
the installation date
•
the symptoms or malfunction, and details of the defect.
■
Recommended inspection and maintenance cycles
Be aware that the mentioned maintenance and replacement cycles
do not relate to the warranty period of the components.
Table 1:
"Inspection Cycle" and "Maintenance Cycle" list
Table 1 assumes the following conditions of use:
1.
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.
2.
Operation of the unit is assumed to be 10 hours/day and 2,500
hours/year.
WARNING
■
Do not modify, disassemble, remove, reinstall or repair
the unit yourself as incorrect dismantling or installation
may cause an electric 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 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.
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
Remote controller and switches
25,000 hours
Drain pan
8 years
Expansion valve
20,000 hours
Electromagnetic valve
20,000 hours
