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Mitsubishi
Luftkonditionering
MFXZ-KW25-50VG
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FLOOR TYPE AIR CONDITIONERS
MFXZ-KW25VG MFXZ-KW35VG MFXZ-KW50VG
REFRIGERANT
R32/R410A
English
INSTALLATION MANUAL
For INSTALLER
• This manual only describes the installation of indoor unit. When installing the
outdoor unit, refer to the installation manual of outdoor unit.
EN-1
CONTENTS
1. BEFORE INSTALLATION ....................................1
2. INDOOR UNIT INSTALLATION ...........................4
3. FLARE CONNECTION, PIPE CONNECTION ..... 8
4. TEST RUN ...........................................................8
5. PUMPING DOWN ................................................9
ENGLISH
Model names are indicated
in 1-3.
This installation manual describes
only for the indoor unit. Refer to
the outdoor unit installation manual
to set up outdoor units.
1. BEFORE INSTALLATION
MEANINGS OF SYMBOLS DISPLAYED ON INDOOR UNIT AND/OR OUTDOOR UNIT
WARNING
(Risk of re)
This unit uses a ammable refrigerant.
If refrigerant leaks and comes in contact with re or heating part, it will create harmful gas and there is risk of re.
Read the OPERATING INSTRUCTIONS carefully before operation.
Service personnel are required to carefully read the OPERATING INSTRUCTIONS and INSTALLATION MANUAL before operation.
Further information is available in the OPERATING INSTRUCTIONS, INSTALLATION MANUAL, and the like.
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.
• Be sure to observe the warnings and cautions specied here as they include important items related to safety.
• After reading this manual, be sure to keep it together with the OPERATING INSTRUCTIONS for future reference.
• When using this product in Australia, carefully read the Australian Institute of Refrigeration and Flammable refrigerants Safety Guide in Air conditioning and Heating (AIRAH) as well.
WARNING
(Could lead to death, serious injury, etc.)
Required Tools for Installation
Phillips screwdriver
Level
Scale
Utility knife or scissors
75 mm hole saw
Torque wrench
Wrench (or spanner)
Flare tool for R32, R410A
Gauge manifold for R32, R410A
Vacuum pump for R32, R410A
Charge hose for R32, R410A
Pipe cutter with reamer
Water bottle
0.9 to 1.0 L water
n Do not install the unit by yourself (user).
Incomplete installation could cause re or electric
shock, injury due to the unit falling, or leakage of water.
Consult the dealer from whom you purchased the unit
or a qualied installer.
n Perform the installation securely referring to the
installation manual.
Incomplete installation could cause re or electric
shock, injury due to the unit falling, or leakage of water.
n When installing the unit, use appropriate protec-
tive equipment and tools for safety.
Failure to do so could cause injury.
n 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.
n Electrical work should be performed by a quali-
ed, experienced electrician, according to the
installation manual. Be sure to use an exclusive
circuit. Do not connect other electrical appliances
to the circuit.
If the capacity of the power circuit is insucient or there
is incomplete electrical work, it could result in a re or
an electric shock.
n 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.
n Do not damage the wires by applying excessive
pressure with parts or screws.
Damaged wires could cause re or electric shock.
n Be sure to cut o the main power in case of set-
ting up the indoor P.C. board or wiring works.
Failure to do so could cause electric shock.
n Use the specied wires to connect the indoor and
outdoor units securely and attach the wires rmly
to the terminal block connecting sections so the
stress of the wires is not applied to the sections.
Do not extend the wires, or use intermediate con-
nection.
Incomplete connecting and securing could cause re.
n Do not install the unit in a place where ammable
gas may leak.
If gas leaks and accumulates in the area around the
unit, it could cause an explosion.
n Do not use intermediate connection of the power
cord or the extension cord and do not connect many
devices to one AC outlet.
It could cause a re or an electric shock due to defective
contact, defective insulation, exceeding the permissible
current, etc.
n Be sure to use the parts provided or specied
parts for the installation work.
The use of defective parts could cause an injury or
leakage of water due to a re, an electric shock, the
unit falling, etc.
n 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.
If there is dust, clogging, or loose parts on the power
supply plug or the outlet, it could cause electric shock
or re. If loose parts are found on the power supply
plug, replace it.
n 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 outdoor unit are not attached securely, it
could result in a re or an electric shock due to dust,
water, etc.
n When installing, relocating, or servicing the
unit, make sure that no substance other than
the specied refrigerant (R32/R410A) enters the
refrigerant circuit.
Any presence of foreign substance such as air can
cause abnormal pressure rise and may result in ex-
plosion or injury. The use of any refrigerant other than
that specied for the system will cause mechanical
failure, system malfunction, or unit breakdown. In the
worst case, this could lead to a serious impediment to
securing product safety.
n Do not alter the unit.
It may cause re, electric shock, injury or water leakage.
n Do not discharge the refrigerant into the atmos-
phere. If refrigerant leaks during installation,
ventilate the room. Check that the refrigerant does
not leak after installation has been completed.
If refrigerant leaks and comes in contact with re or
heating part of such a fan heater, kerosene heater, or
cooking stove, it will create harmful gas.
n Use appropriate tools and piping materials for
installation.
The pressure of R32/R410A is 1.6 times more than R22.
Not using appropriate tools or materials and incomplete
installation could cause the pipes to burst or injury.
n When the refrigeration circuit has a leak, do not
execute pump down with the compressor. When
pumping down the refrigerant, stop the compres-
sor 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.
n 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 pressure in the refrigeration
cycle could become abnormally high. This could cause
the pipes to burst or injury.
n Install an earth leakage breaker depending on the
installation place.
If an earth leakage breaker is not installed, it could
cause electric shock.
n Fasten a are nut with a torque wrench as speci-
ed in this manual.
If fastened too tight, a are nut may break after a long
period and cause refrigerant leakage.
n The unit shall be installed in accordance with
national wiring regulations.
n When using a gas burner or other ame-producing
equipment, completely remove all of the refrigerant
from the air conditioner and ensure that the area is
well-ventilated.
If the refrigerant leaks and comes in contact in re or
heating part, it will create harmful gas and there is risk
of re.
n Do not use means to accelerate the defrosting
process or to clean, other than those recommended
by the manufacturer.
n The appliance shall be stored in a room without
continuously operating ignition sources (for exam-
ple: open ames, an operating gas appliance or an
operating electric heater).
n Do not pierce or burn.
n
Be aware that refrigerants may not contain an odour.
n Pipe-work shall be protected from physical damage.
n The installation of pipe-work shall be kept to a
minimum.
n Compliance with national gas regulations shall be
observed.
n Keep any required ventilation openings clear of
obstruction.
n Keep gas-burning appliances, electric heaters, and
other re sources (ignition sources) away from the
location where installation, repair, and other air
conditioner work will be performed.
n The appliance shall be stored in a well-ventilated
area where the room size corresponds to the room
area as specied for operation.
n Do not turn the breaker OFF except the case of
burning smell, or when performing maintenance
or inspection.
The power cannot be supplied to the refrigerant sensor
mounted in the indoor unit, and the sensor cannot detect
the refrigerant leakage. This may cause a re.
n In Australia, only technicians that possess the
appropriate license issued by the Australian Refrig-
eration Council (ARC) should install this product.
n Fix the connecting cable at the prescribed posi-
tion securely.
Incorrect installation may cause electric shock, re,
and/or malfunction.
Appropriate personal protective equipment
The installer should ensure they check the respective Work
Health and Safety (WHS) Act within their jurisdiction as the
requirements and obligations may dier.
Produktspecifikationer
| Varumärke: | Mitsubishi |
| Kategori: | Luftkonditionering |
| Modell: | MFXZ-KW25-50VG |
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