Mitsubishi Electric MSZ-SF25VE3 Installation Manual

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INSTALLATION MANUAL

1. BEFORE INSTALLATION

1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
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■ Do not install the unit by yourself (user).
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■ Perform the installation securely referring to the installa-
tion manual.
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■ When installing the unit, use appropriate protective equip-
ment and tools for safety.
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■ Install the unit securely in a place which can bear the
weight of the unit.
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rienced electrician, according to the installation manual.
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electrical appliances to the circuit.
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■ Earth the unit correctly.
Do not connect the earth to a gas pipe, water pipe, lightning rod,
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with parts or screws.
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■ Be sure to cut off the main power in case of setting up the
indoor P.C. board or wiring works.
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block connecting sections so the stress of the wires is
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use intermediate connection.
■ Install an earth leakage breaker depending on the instal-
lation place.
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■ Perform the drainage/piping work securely according to
the installation manual.
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1-2. SELECTING THE INSTALLATION LOCATION

INDOOR UNIT
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before use.
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descent lights.
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conditioner normally. The heat from the lights may cause
deformation or the ultraviolet may cause deterioration.
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REMOTE CONTROLLER
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signals from the remote controller are surely received by the
indoor unit from that position ('beep' or 'beep beep' receiving
tone sounds). After that, attach remote controller holder to a
pillar or wall and install wireless remote controller.

1-3. SPECIFICATIONS

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,QGRRU XQLW Outdoor unit
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power switch is shut off, it must interrupt all phases.)
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Model names are indicated in 1-3.
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installation manual of the multi unit for
outdoor unit installation.
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may leak.
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■ Do not use intermediate connection of the power cord or
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one AC outlet.
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the installation work.
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■ When plugging the power supply plug into the outlet,
make sure that there is no dust, clogging, or loose parts
in both the outlet and the plug. Make sure that the power
supply plug is pushed completely into the outlet.
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parts are found on the power supply plug, replace it.
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service panel to the outdoor unit securely.
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of the outdoor unit are not attached securely, it could result in
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■ When installing, relocating, or servicing the unit, make
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(R410A) enters the refrigerant circuit.
Any presence of foreign substance such as air can cause
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system will cause mechanical failure, system malfunction, or
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impediment to securing product safety.
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outdoor unit.
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■ Do not install the outdoor unit where small animals may
live.
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Note:
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signal from the wireless remote controller may not be received.
OUTDOOR UNIT
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longer.
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sible.
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(or cool) air.
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of operation sound or vibration.
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unit legs.
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be required for the affected device.
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length less than 7 m.)
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Phillips screwdriver
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Scale
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65 mm hole saw
Torque wrench
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CAUTION
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Power supply *DV  /LTXLG
connecting wire
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Required Tools for Installation
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Pipe cutter with reamer
■ Do not discharge the refrigerant into the atmosphere. If
refrigerant leaks during installation, ventilate the room.
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■ Check that the refrigerant gas does not leak after instal-
lation has been completed.
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substances will be generated.
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appropriate tools or materials and incomplete installation could
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■ When pumping down the refrigerant, stop the compressor
before disconnecting the refrigerant pipes.
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sor is running and the stop valve is open, air could be drawn
in and the pressure in the refrigeration cycle could become
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■ When installing the unit, securely connect the refrigerant
pipes before starting the compressor.
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connected and when the stop valve is open, air could be drawn
in and the pressure in the refrigeration cycle could become
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this manual.
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■ The unit shall be installed in accordance with national
wiring regulations.
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Before operating the air conditioner, ventilate the room well
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elements to adhere inside the air conditioner, resulting in water
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Note:
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reduce vibration transmitted from there.
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be sure to follow the instructions described below.
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air inlet side facing the wall.
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Avoid the following places for installation where air conditioner
trouble is liable to occur.
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properties of plastic could be changed and damaged).
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waste water.
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phthalate compounds, formaldehyde, etc., which may cause
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Pipe size
Pipe length and height difference
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