Operation manual
6
ERQ100~14 ERQ125~250A7W1B
Inverter condensing unit
4PW51322-1B – 2018.04
3
The system operates but cooling or heating is insufficient
■
Check if air inlet or outlet of outdoor or air handling 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 air handling 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).
12. A
FTER
-
SALES
SERVICE
AND
WARRANTY
Warranty period
■
This product includes a warranty card that was filled out by the
dealer at the time of installation. The completed card was
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.
12.1.
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.
12.2.
Shortening of "maintenance cycle" and
"replacement cycle" needs to be considered in
following situations
■
The unit is used in locations where:
1.
heat and humidity fluctuate out of the ordinary
2.
power fluctuation is high (voltage, frequency, wave distortion,
etc.)
(The unit cannot be used if power fluctuation is outside the
allowable range.)
3.
bumps and vibrations are frequent
4.
dust, salt, harmful gas or oil mist such as sulfurous acid and
hydrogen sulfide may be present in the air
5.
the machine is started and stopped frequently or operation time
is long (sites with 24 hour air-conditioning).
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
NOTE
1.
Table 1 indicates main components.
Refer to your maintenance and inspection contract
for more details.
2.
Table 1 indicates recommended intervals of
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
budgetting maintenance and inspection fees.
Depending on the content of the maintenance and
inspection contract, inspection and maintenance
cycles may in reality be shorter than listed.
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