Mitsubishi MFZ-FB50VA Installation Manual

INSTALLATION MANUAL

1. BEFORE INSTALLATION

1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
Do not install the unit by yourself (user).
Perform the installation securely referring to the installa-
tion manual.
Install the unit securely in a place which can bear the
weight of the unit.
Perform electrical work according to the installation
manual and be sure to use an exclusive circuit. Do not
connect other electrical appliances to the circuit.
Earth the unit correctly.
Do not connect the earth to a gas pipe, water pipe, lightning
rod or telephone earth. Defective earthing could cause electric
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.
block connecting sections so the stress of the wires is
not applied to the sections.
Install an earth leakage breaker depending on the installa-
tion place.
Perform the drainage/piping work securely according to
the installation manual.

1-2. SELECTING THE INSTALLATION LOCATION

INDOOR UNIT
• Where cool air spreads over the entire room.
• Where it is not exposed to direct sunshine.
fected device.
incandescent lights (so the infrared remote control can
REMOTE CONTROLLER
• Where children cannot touch it.
mote controller holder to a pillar or wall and install wire-
less remote controller.

1-3. SPECIFICATIONS

Model
Indoor unit
*1 Connect to the power switch which has a gap of 3 mm or
more when open to interrupt the source power phase. (When
the power switch is shut off, it must interrupt all phases.)
*2
Model names are indicated in 1-3.
WARNING
may leak.
could cause an explosion.
Do not use intermediate connection of the power cord or
the extension cord and do not connect many devices to
one AC outlet.
etc.
the installation work.
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.
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
When installing or relocating the unit, make sure that no
enters the refrigerant circuit.
normal pressure rise or an explosion.
CAUTION
outdoor unit.
Note:
received.
OUTDOOR UNIT
• Where it is not exposed to strong wind.
-
or hot air.
the unit legs.
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3-core
16 A
2
2.0 mm
pipe length less than 7 m.)
Required Tools for Installation
Phillips screwdriver
Scale
75 mm hole saw
Torque wrench
Wrench (or spanner)
Do not discharge the refrigerant into the atmosphere. If
refrigerant leaks during installation, ventilate the room.
generated.
Check that the refrigerant gas does not leak after installa-
tion has been completed.
-
Use appropriate tools and piping materials for installa-
tion.
ing appropriate tools or materials and incomplete installation
When pumping down the refrigerant, stop the compressor
before disconnecting the refrigerant pipes.
If the refrigerant pipes are disconnected while the compres-
When installing the unit, securely connect the refrigerant
pipes before starting the compressor.
this manual.
-
The unit shall be installed in accordance with national
wiring regulations.
Do not install the outdoor unit where small animals may
live.
If small animals enter and touch the electric parts inside the
Note:
Note:
When operating the air conditioner in low outside tempera-
• To prevent exposure to wind, install the outdoor unit
with its air inlet side facing the wall.
• To prevent exposure to wind, it is recommended to install
Avoid the following places for installation where air condi-
• Where there is much machine oil.
Pipe size
Indoor/outdoor
connecting wire
4-core ø12.7 / 6.35 mm
2
1.0 mm (0.8 mm)
Additional refrigerant = A × (pipe length (m) - 7)
4 mm hexagonal wrench
Pipe cutter with reamer
Pipe length and height difference
Max. pipe length 30 m
Max. height difference 15 m
10
30 g/m
8 mm
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