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3
Selection of installation place
Avoid installing in the following places.
Select a location for the indoor unit where the cool or warm air will circulate evenly.
Avoid installation in the following locations.
• Saline area (coastal area).
• Locations with acidic or alkaline atmospheres (such as areas with hot springs, factories where chemicals or
pharmaceuticals are made and places where the exhaust air from combustion appliances will be sucked into the
unit).
Doing so may cause the heat exchanger (its aluminum fins and copper pipes) and other parts to become
corroded.
• Locations with atmospheres consisting of mist of cutting oil or other types of machine oil.
Doing so may cause the heat exchanger to become corroded, mists caused by the blockage of the heat
exchanger to be generated, the plastic parts to be damaged, the heat insulators to peel off, and other such
problems to result.
• Locations where vapors from food oils are formed (such as kitchens where food oils are used).
Blocked filters may cause the air conditioner's performance to deteriorate, condensation to form, the plastic parts
to be damaged, and other such problems to result.
• A kitchen in restaurant or places around machines and equipment in a factory, where a lot of oils are used.
(Oil adhering to the heat exchanger and the resin parts in the indoor unit may lower the unit performance, splash
water drops, or produce mist and may cause the resin parts to be deformed or damaged.)
• Places where iron or other metal dust is present. If iron or other metal dust adheres to or collects on the interior
of the air conditioner, it may spontaneously combust and start a fire.
• Locations near obstructions such as ventilation openings or lighting fixtures where the flow of the blown air will
be disrupted (a disruption of the air flow may cause the air conditioner's performance to deteriorate or the unit to
shut down).
• Locations where an in-house power generator is used for the power supply.
The power line frequency and voltage may fluctuate, and the air conditioner may not work properly as a result.
• On truck cranes, ships or other moving conveyances.
• The air conditioner must not be used for special applications (such as for storing food, plants, precision
instruments or art works).
(The quality of the items stored may be degraded.)
• Locations where high frequencies are generated (by inverter equipment, in-house power generators, medical
equipment or communication equipment).
(Malfunctioning or control trouble in the air conditioner or noise may adversely affect the equipment's operation.)
• Locations where there is anything under the unit installed that would be compromised by wetness.
(If the drain has become blocked or when the humidity is over 80%, condensation from the indoor unit will drip,
possibly causing damage to anything underneath.)
• In the case of the wireless type of system, rooms with the inverter type of fluorescent lighting or locations
exposed to direct sunlight.
(The signals from the wireless remote control may not be sensed.)
• Locations where organic solvents are being used.
• The air conditioner cannot be used for liquefied carbonic acid cooling or in chemical plants.
• Location near doors or windows where the air conditioner may come into contact with high-temperature, high-
humidity outdoor air.
(Condensation may occur as a result.)
• Locations where special sprays are used frequently.
• Place where use a lot of water, such as laundry rooms (This indoor unit is not waterproof.)
5-EN
– 3 –
Before installation
REQUIREMENT
• The drain filter is provide to avoid drain from clogging during construction phase. Clean the filter before test run. Keep
the drain filter in place during normal running cycle of the unit to avoid drain from clogging. Clean the filter periodically.
• The air filter is provided under the indoor unit. Clean air filter before test run. Replace or clean the filter during unit
normal running cycle.
Pull air filter to the arrow mark,
and remove the air filter.
Installation space
Reserve sufficient space required for installation or service work.
Model MML-
UP007 to UP012
UP015 to UP024
5.9
150)
" (
or more
If the service space is
11.8" (300 mm) or less,
removing the wiring and
conduit mounting plate is
required for PC board
replacement.
Service space at
Power supply
Filter cleaning sign term setting
The lighting term setup of the filter sign (Notification of filter cleaning) of the remote control can be changed
according to the condition of installation.
For setup method, refer to "Filter sign setting" in the Applicable controls of this Manual.
Air filter
A
24.0
"
(610)
35.8
(910)
"
2.8
(70)
A
8.7
220) or more
" (
Service space at
pipe side
Unit: in (mm)
"
6-EN
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