Mitsubishi Electric JG79A114H02 Installation Manual

SPLIT-TYPE AIR CONDITIONERS

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.
Do not install the unit by yourself (user).
due to the unit falling, or leakage of water. Consult the dealer
Perform the installation securely referring to the installa-
tion manual.
due to 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,
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.
shock.
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
shock.
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.
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.
If an earth leakage breaker is not installed, it could cause
electric shock.
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.
• Rigid wall without vibration.
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 Outdoor unit
MUZ-FB50VA
MSZ-FB50VA
MUZ-FB50VAH
*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
shall be installed in accordance with national wiring regulations.
*3 Never use pipes with thickness less than specified. The
Model names are indicated in 1-3.
When installing multi units, refer to
the installation manual of the multi
unit for outdoor unit installation.
may leak.
If gas leaks and accumulates in the area around the unit, it
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.
If there is defect in the drainage/piping work, water could drop
from the unit, soaking and damaging household goods.
outdoor unit.
Note:
received.
OUTDOOR UNIT
• Where rain or direct sunlight can be avoided as much as
-
possible.
or hot air.
• Where rigid wall or support is available to prevent the
increase of operation sound or vibration.
• Where there is no risk of combustible gas leakage.
• When installing the unit at a high level, be sure to secure
the unit legs.
radio or TV reception in areas where reception is weak.
-
-
Rated Breaker
Voltage
230 V 50 Hz 16 A
*5 Be careful not to crush or bend the pipe during pipe bending.
*6 Refrigerant pipe bending radius must be 100 mm or more.
charge is required. (No additional charge is required for
pipe length less than 7 m.)
JG79A114H02
Phillips screwdriver
Level
Scale
65 mm hole saw
Torque wrench
Wrench (or spanner)
WARNING
-
-
CAUTION
Pipe size
(thickness *3, *4)
Indoor/outdoor
Gas / Liquid
connecting wire
3-core 4-core ø12.7 / 6.35 mm
2 2
2.0 mm 1.0 mm (0.8 mm)
Required Tools for Installation
Flare tool for R410A
Gauge manifold for R410A
Vacuum pump for R410A
Charge hose for R410A
Pipe cutter with reamer
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.
If refrigerant gas leaks indoors, and comes into contact with
substances will be generated.
Use appropriate tools and piping materials for installa-
tion.
The pressure of R410A is 1.6 times more than R22. Not us-
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-
sor is running and the stop valve is open, air could be drawn
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
this manual.
and cause refrigerant leakage.
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
unit, it could cause a malfunction, smoke emission, or fire.
Also, advise user to keep the area around the unit clean.
Note:
It is advisable to make a piping loop near outdoor unit so as
to reduce vibration transmitted from there.
Note:
When operating the air conditioner in low outside tempera-
ture, be sure to follow the instructions described below.
• Never install the outdoor unit in a place where its air
with its air inlet side facing the wall.
•
Avoid the following places for installation where air condi-
tioner trouble is liable to occur.
• Where there is much machine oil.
Pipe length and height difference
Refrigerant adjustment A *7
Insulation thickness *8, *9
Additional refrigerant = A × (pipe length (m) - 7)
*8 Insulation material : Heat resisting foam plastic 0.045
-
30 m
15 m
10
30 g/m
8 mm
-