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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 instal-
lation manual.
due to the unit falling, or leakage of water.
When installing the unit, use appropriate protective
equipment and tools for safety.
Failure to do so could cause injury.
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.
rienced electrician, according to the installation manual.
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 shock.
sure 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.
door units securely and attach the wires firmly to the
terminal block connecting sections so the stress of the
wires, or use intermediate connection.
Install an earth leakage breaker depending on the instal-
lation 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.
direct sunshine also during the period following unpacking to
before use.
• Where easily drained.
Operation of the air conditioner may interfere with radio or
device.
candescent lights (so the infrared remote control can operate
the air conditioner normally).
REMOTE CONTROLLER
• Where it is easy to operate and easily visible.
• Where children cannot touch it.
signals from the remote controller are surely received by the
indoor unit from that position ('beep' or 'beep beep' receiving
tone sounds). After that, attach remote controller holder to a
pillar or wall and install wireless remote controller.
1-3. SPECIFICATIONS
Model
Indoor unit
Outdoor unit
—
more when open to interrupt the source power phase. (When
the power switch is shut off, it must interrupt all phases.)
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
to one AC outlet.
rent, etc.
the installation work.
The use of defective parts could cause an injury or leakage
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 sup-
-
loose parts are found on the power supply plug, replace it.
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
When installing, relocating, or servicing the unit, make
ant (R410A) enters the refrigerant circuit.
Any presence of foreign substance such as air can cause
-
system will cause mechanical failure, system malfunction, or
unit breakdown. In the worst case, this could lead to a seri-
ous impediment to securing product safety.
If there is defect in the drainage/piping work, water could
drop from the unit, soaking and damaging household goods.
outdoor unit.
This could cause injury.
Note:
signal from the wireless remote controller may not be received.
OUTDOOR UNIT
• Where rain or direct sunlight can be avoided as much as pos-
sible.
• Where neighbours are not annoyed by operation sound or
hot air.
• Where rigid wall or support is available to prevent the in-
crease 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.
• Where it is at least 3 m away from the antenna of TV set or
radio. Operation of the air conditioner may interfere with radio
or TV reception in areas where reception is weak. An ampli-
• Install the unit horizontally.
• Please install it in an area not affected by snowfall or blowing
snow. In areas with heavy snow, please install a canopy, a
Note:
It is advisable to make a piping loop near outdoor unit so as to
reduce vibration transmitted from there.
Rated
Breaker
Frequency
Voltage
capacity
—
charge is required. (No additional charge is required for pipe
-
Phillips screwdriver
Level
Scale
Utility knife or scissors
Torque wrench
Wrench (or spanner)
WARNING
(Could lead to death, serious injury, etc.)
CAUTION
(Could lead to serious injury in particular environments when operated incorrectly.)
Pipe size
Indoor/outdoor
Power supply
Gas / Liquid
connecting wire
—
3-core
3-core
Required Tools for Installation
Pipe cutter with reamer
Do not discharge the refrigerant into the atmosphere. If
refrigerant leaks during installation, ventilate the room.
be generated. Refrigerant leakage may cause suffocation.
Check that the refrigerant gas does not leak after instal-
lation 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.
ing appropriate tools or materials and incomplete installation
could cause the pipes to burst or injury.
When pumping down the refrigerant, stop the compres-
sor 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
in and the pressure in the refrigeration cycle could become
abnormally high. This could cause the pipes to burst or in-
jury.
When installing the unit, securely connect the refriger-
ant 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.
this manual.
riod 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
Also, advise user to keep the area around the unit clean.
Note:
When operating the air conditioner in low outside temperature,
be sure to follow the instructions described below.
• Never install the outdoor unit in a place where its air inlet/
its air inlet side facing the wall.
Avoid the following places for installation where air conditioner
trouble is liable to occur.
• Where there is much machine oil.
smoke (such as cooking areas and factories, in which the
properties of plastic could be changed and damaged).
• Salty places such as the seaside.
• Where there is high-frequency or wireless equipment.
• Where there is emission of high levels of VOCs, includ-
ing phthalate compounds, formaldehyde, etc., which may
cause chemical cracking.
Pipe length and height difference
Insulation thickness *8, *9
gravity
sive thickness may cause incorrect installation of the indoor
-
-
8 mm
-
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Table of Contents
Related Manuals for Mitsubishi Electric MSZ-EF18VE
Summary of Contents for Mitsubishi Electric MSZ-EF18VE
- Page 1 Required Tools for Installation Phillips screwdriver Level Scale Model names are indicated in 1-3. Utility knife or scissors When installing multi units, refer to the SPLIT-TYPE AIR CONDITIONERS installation manual of the multi unit for Torque wrench Pipe cutter with reamer INSTALLATION MANUAL outdoor unit installation.
-
Page 2: Indoor Unit Installation
1-4. INSTALLATION DIAGRAM Wall hole cover (D) Be sure to use wall hole sleeve (C) to prevent in- Indoor unit ACCESSORIES Seal the wall hole door/outdoor connecting Check the following parts before installation. gap with putty (H). wire (A) from contacting <Indoor unit>... -
Page 3: Outdoor Unit Installation
Left or left-rear piping Rear, right, or downward piping Cut off in case of Note: right piping. Be sure to reattach the drain together, then firmly apply piping tape (G) Cut off in case of left Piping tape (G) hose and the drain cap in case from the end. -
Page 4: Purging Procedures, Leak Test, And Test Run
Remove the bottom of the indoor unit from the installation EU regulations: plate. When releasing the corner part, release both left and right bottom corner part of indoor unit and pull it downward and AUTHORIZED REPRESENTATIVE IN EU: MITSUBISHI ELECTRIC EUROPE B.V. - Page 5 Related Links Model Number: MSZ-EF25VE MSZ-EF25-50 and MUZ-EF25-50 Declaration of Conformity (JG79R589H01) MSZ-EF25-50VE Parts Catalogue (OBB589B) MSZ-EF25-50VE2 Instruction Book (JG79A844H01) MSZ-EF25-50VE2 Service Manual (OBH589D)