Before Installation - Mitsubishi Electric MLZ-KA50VA Installation Manual

1. BEFORE INSTALLATION

1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
• Be sure to read "THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY" before installing the air conditioner.
• After reading this manual, be sure to keep it together with the OPERATING INSTRUCTIONS for future reference.
WARNING
Do not install the unit by yourself (user).
the unit falling, or leakage of water. Consult the dealer from whom you
Perform the installation securely referring to the installation manual.
the unit falling, or leakage of water.
Install the unit securely in a place which can bear the weight of the
unit.
If the installation location cannot bear the weight of the unit, the unit
could fall causing injury.
Perform electrical work according to the installation manual and be
sure to use an exclusive circuit. Do not connect other electrical ap-
pliances to the circuit.
Do not damage the wires by applying excessive pressure with parts
or screws.
Be sure to cut off the main power in case of setting up the indoor P.C.
board or wiring works.
Failure to do so could cause electric shock.
sections so the stress of the wires is not applied to the sections.
If gas leaks and accumulates in the area around the unit, it could cause
an explosion.
Do not use intermediate connection of the power cord or the exten-
sion cord and do not connect many devices to one AC outlet.
tive insulation, exceeding the permissible current, etc.
tion work.
The use of defective parts could cause an injury or leakage of water due
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 com-
pletely into the outlet.
If there is dust, clogging, or loose parts on the power supply plug or the
power supply plug, replace it.
CAUTION
Install an earth leakage breaker depending on the installation place.
If an earth leakage breaker is not installed, it could cause electric shock.
Perform the drainage/piping work securely according to the instal-
lation manual.
If there is defect in the drainage/piping work, water could drop from the
unit, soaking and damaging household goods.
1-2. SELECTING THE INSTALLATION LOCATION
INDOOR UNIT
• Where cool air spreads over the entire room.
• Where it is not exposed to direct sunshine.
• Where easily drained.
• At a distance 1 m or more away from your TV and radio. Operation of the
air conditioner may interfere with radio or TV reception in areas where
lights (so the infrared remote control can operate the air conditioner nor-
mally).
1-3. REQUIRED TOOLS FOR INSTALLATION
Phillips screwdriver
Level
Scale
Utility knife or scissors
75 mm hole saw
Torque wrench
Wrench (or spanner)
2
(Could lead to death, serious injury, etc.)
(Could lead to serious injury in particular environments when operated incorrectly.)
Attach the electrical cover to the indoor unit and the service panel
to the outdoor unit securely.
If the electrical cover of the indoor unit and/or the service panel of the
tric shock due to dust, water, etc.
When installing or relocating the unit, make sure that no substance
circuit.
Any presence of foreign substance such as air can cause abnormal
pressure rise or an explosion.
Do not discharge the refrigerant into the atmosphere. If refrigerant
leaks during installation, ventilate the room.
ated.
Check that the refrigerant gas does not leak after installation has
been completed.
a fan heater, space heater, stove, etc., harmful substances will be gener-
ated.
Use appropriate tools and piping materials for installation.
The pressure of R410A is 1.6 times more than R22. Not using appropri-
ate tools or materials and incomplete installation could cause the pipes
- to burst or injury.
When pumping down the refrigerant, stop the compressor before
disconnecting the refrigerant pipes.
If the refrigerant pipes are disconnected while the compressor is running
and the stop valve is open, air could be drawn in and the pressure in the
refrigeration cycle could become abnormally high. This could cause the
pipes to burst or injury.
When installing the unit, securely connect the refrigerant pipes
before starting the compressor.
- If the compressor is started before the refrigerant pipes are connected
and when the stop valve is open, air could be drawn in and the pres-
- sure in the refrigeration cycle could become abnormally high. This could
cause the pipes to burst or injury.
refrigerant leakage.
The unit shall be installed in accordance with national wiring regu-
lations.
Earth the unit correctly.
Do not connect the earth to a gas pipe, water pipe, lightning rod or tel-
ephone earth. Defective earthing could cause electric shock.
This could cause injury.
Do not install the outdoor unit where small animals may live.
If small animals enter and touch the electric parts inside the unit, it could
the area around the unit clean.
REMOTE CONTROLLER
• Where it is easy to operate and easily visible.
• Where children cannot touch it.
• Select and check that signals from the remote controller are surely re-
ceived by the indoor unit from that position ('beep' or 'beep beep' receiv-
ing tone sounds). After that, attach remote controller holder to a pillar or
wall and install wireless remote controller.
Note:
wireless remote controller may not be received.
Flare tool for R410A
Gauge manifold for R410A
Vacuum pump for R410A
Charge hose for R410A
Pipe cutter with reamer
Water bottle
0.9 to 1.0 L water
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