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JG79A230H03
Required Tools for Installation
Philli
dri
5/32 in. (4
h
|
h
©
MITSUBISHI
lee
Flare tool for RETOAT
Aa
ELECTRIC
MSZ-FE09/12NA
Scale
Gauge manifold for R410A
When installing multi units, refer to
Utility knife or scissors
Vacuum pump for R4170A
SPLIT-TYPE AIR CONDITIONERS
the installation manual of the multi
2-9/16 in. (65 mm) hole saw
Charge hose for R410A
Wrench (or spanner)
1. BEFORE INSTALLATION
1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
Be sure to read these safety precautions and instructions.
Be sure to observe the warnings and cautions specified here.
After reading this manual, be sure to store it with the OPERATING
INSTRUCTIONS for future reference.
Please report to your supply authority or obtain their consent before connecting this equipment to the power supply system.
A. WARNING
(Could lead to death or serious injury.)
@ Do not install the unit by yourself (user).
@ Securely attach the electrical cover to the indoor unit and the service panel to
Improper or incomplete installation could cause fire, electric shock, injury due to
the outdoor unit.
the unit falling, or water leakage. Consult a qualified installer or the dealer from
If the electrical cover of the indoor unit and/or the service panel of the outdoor unit are
whom you purchased the unit.
not attached securely, dust, water, etc. could collect in the unit and could cause a
fire or
@ Follow the instructions detailed in the installation manual.
an electric shock.
Incomplete installation could cause fire or electric shock, injury due to the unitfall-
i When installing or relocating the unit, make sure that no substance other than
ing, or leakage of water.
the specified refrigerant (R410A) enters the refrigerant circuit.
@ Install the unit securely in a place that can bear the weight of the unit.
Any foreign substances in the refrigerant circuit can cause abnormal pressure rise
If the installation location cannot bear the weight of the unit, the unit could fall
or an explosion.
causing injury.
& Do not discharge the refrigerant into the atmosphere. Check that the refrigerant gas
@ Perform electrical work according to the installation manual and be sure to use
does not leak after installation has been completed.
If refrigerant leaks during
an exclusive circuit. Do not connect other electrical appliances to the circuit.
installation, ventilate the room.
If the capacity of the power circuit is insufficient or there is incomplete electrical
If refrigerant comes in contact with a fire, harmful gas could be generated.
work, it could result in a fire or an electric shock.
If refrigerant gas leaks indoors, and comes into contact with the flame of a fan
Ground the unit correctly.
heater, space heater, stove, etc., harmful gases will be generated.
Do not connect the ground wire to a gas pipe, water pipe, lightning rod or tel-
& Use appropriate tools and piping materials for installation.
ephone ground. Defective grounding could cause electric shock.
The pressure of R410A is 1.6 times higher than R22. Not using the appropriate
@ Do not damage the wires.
tools and materials, or improper installation could cause the pipes to burst causing
Damaged wires could cause fire.
an injury.
@ Be sure to shut off the main power when
setting up the indoor P.C. board or
Hf When pumping down the refrigerant, stop the compressor before disconnecting
wiring.
the refrigerant pipes.
Failure to do so could cause electric shock.
If the refrigerant pipes are disconnected while the compressor is running and the
fl
Use the specified wires to securely connect the indoor and outdoor units. At-
stop valve is open, air could be drawn in and the pressure in the refrigeration cycle
tach the wires firmly to avoid applying stress to the terminal block.
could become abnormally high, causing the pipes to burst.
Improper connection could cause fire.
& When installing the unit, securely connect the refrigerant pipes before starting
@ Do not install the unit in a place where flammable gas may leak.
the compressor.
If gas leaks and accumulates around the unit, it could cause an explosion.
lf the compressor is started before the refrigerant pipes are connected and the
Do not use intermediate connection of the power cord or the extension cord.
stop valve is open, air could be drawn in and the pressure in the refrigeration cycle
Do not connect many devices to one AC outlet.
could become abnormally high, causing the pipes to burst.
It could cause a fire or an electric shock.
@ Fasten a flare nut with a torque wrench as specified in this manual.
i@ Use the parts provided or specified parts for the installation work.
If fastened too tight, a flare nut could break and cause refrigerant leakage.
The use of defective parts could cause an injury or leakage of water due to a fire,
& Install the unit
according to national wiring regulations.
an electric shock, the unit falling, etc.
i When
plugging the power supply plug into the outlet, make sure that there is
no dust, blockage, or loose parts both in the outlet and on the plug. Verify that
the power supply plug is completely in the outlet.
If there is dust, blockage, or loose parts on the power supply plug or the outlet, it could
cause electric shock or fire. If loose parts are found on the power supply plug, replace it.
@ Depending on the installation area, install a Ground Fault Interrupt (GFI) circuit
Hi Do not touch the air inlet or the aluminum fins of the outdoor unit.
breaker.
This could cause injury.
If the Ground Fault Interrupt (GFI) circuit breaker is not installed, an electric shock
& Do not install the outdoor unit where small animals may live.
could occur.
If small animals enter the unit and damage
its electrical parts, it could cause a
i@ Perform
the drainage/piping
work
securely
according
to the
installation
malfunction, smoke emission, or fire. Keep the area around the unit clean.
manual.
If there is defect in the drainage/piping work, water could drip from the unit, and
damage household items.
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