11
Heating
● Too much dust and rubbish are stuck to the dust
filter of the IDU.
● The air outlet of IDU is blocked.
● When the protective equipment activates,
please turn off the power, and restart
operations after the problem is solved.
Caution
6 Maintenance and Repair
6.1 About Refrigerant
This product contains fluorinated greenhouse gases as
stipulated in the Kyoto Protocol. Do not discharge the gas
into the atmosphere.
Refrigerant Type: R32
GWP Value: 675
Law requires that refrigerant must be checked regularly
for leakages. Please contact the installation personnel for
more information.
● The refrigerant in the air conditioner is safe,
and usually does not leak.
● Do not use the air conditioner again until the
maintenance personnel has confirmed that
the refrigerant leakage has been sufficiently
resolved.
WARNING
6.2 After-sales Service and Warranty
6.2.1 Warranty Period
This product comes with a warranty card that was
completed by the dealer during installation. The customer
must check the completed warranty card and keep it
properly.
If you need to repair the air conditioner during the
warranty period, please contact the dealer and provide
the warranty card.
When you request assistance from the dealer, please
remember to state:
Complete model name of the air conditioner
Date of installation
Details on the fault symptoms or errors
Do not attempt to modify, dismantle, remove,
reinstall or repair this unit, as the improper
dismantling or installation may result in electric
shock or fire. Please contact the agent.
If the refrigerant accidentally leaks, make sure
that there are no open flames around the unit.
Refrigerant itself is completely safe, non-toxic
and non-flammable, but it will produce toxic
gases when it accidentally leaks and comes in
contact with flammable substances generated by
heaters and burning devices in the room. Qualified
maintenance personnel must verify that the point
of leakage has been repaired or rectified before
you resume operations of the unit.
Warning
6.2.2 Shorter Maintenance and
Replacement Cycle
In the following situations, the "maintenance cycle" and
"replacement cycle" may be shortened.
The unit is used in the following situations:
● Temperature and humidity fluctuations are outside the
normal range.
● Large power fluctuations (voltage, frequency,
waveform distortion etc.) (must not use the unit if the
power fluctuations exceed the allowed range).
● Frequent collisions and vibrations.
● The air may contain dust, salt, harmful gases or oils
such as sulphite and hydrogen sulphide.
● Frequently turning the unit on and off or operating the
unit for too long (in places where the air conditioning
is on for 24 hours a day).
6.2.3 Maintenance and Repair
Each refrigerating system shall be subjected to
preventative maintenance in accordance with legal
requirements. The frequency of maintenance depends
on the type, size, age, use, etc. of the system. In many
cases, more than one maintenance service is required
per year.
The operator of the refrigerating system shall ensure
that the system is inspected, regularly supervised and
maintained.
Systems shall be inspected for tightness by a qualified
person. If, during the inspection, a leak is suspected,
e.g., through refrigerant temperature checks or capacity
reduction, then the location of the leak shall be identified
with suitable detection equipment and shall be repaired
and checked again after the repair in accordance with
national regulations. The results of the inspection and
measures taken afterwards shall be included in the
logbook.
Regular leak tests and inspections shall be carried out,
including tests and inspections of the safety equipment.
Summary of Contents for KMF-80 DVR5
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