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Mitsubishi Luftkonditionering SUZ-M25-71VAD

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Air-Conditioners
SUZ-M·VAD-A Series
FOR INSTALLER
INSTALLATION MANUAL
For safe and correct use, read this manual and the indoor unit installation manual thoroughly before installing
the air-conditioner unit.
English
en
1
Contents
1. The following should always be observed for safety ............................................ 1
2. Selecting the installation location ......................................................................... 2
3. Installation diagram .............................................................................................. 5
4. Drain piping for outdoor unit (Fig. 4-1).................................................................. 6
1. The following should always be observed for safety
• After reading this manual, be sure to keep it together with the instruction
manual in a handy place on the customer’s site.
: Indicates a part which must be grounded.
Warning:
Carefully read the labels afxed to the main unit.
/ : Indicates warnings and cautions when using R32 refrigerant.
Warning:
• Do not install it by yourself (customer).
Incomplete installation could cause injury due to re, electric shock, the
unit falling or leakage of water. Consult the dealer from whom you pur-
chased the unit or special installer.
• Servicing shall be performed only as recommended by the manufacturer.
• For installation and relocation work, follow the instructions in the Installa-
tion Manual and use tools and pipe components specically made for use
with R32 refrigerant. If pipe components not designed for R32 refrigerant
are used and the unit is not installed correctly, the pipes may burst and
cause damage or injuries. In addition, water leakage, electric shock, or re
may result.
• Do not alter the unit. It may cause re, electric shock, injury or water leak-
age.
• This appliance is intended to be used by expert or trained users in shops, in
light industry and on farms, or for commercial use by lay persons.
• Install the unit securely in a place which can bear the weight of the unit.
When installed in an insufcient strong place, the unit could fall causing
injured.
• Use the specied wires to connect the indoor and outdoor units securely
and attach the wires rmly to the terminal board connecting sections so the
stress of the wires is not applied to the sections.
Incomplete connecting and xing could cause re.
• 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.
• Check that the refrigerant gas does not leak after installation has complet-
ed.
• Perform the installation securely referring to the installation manual.
Incomplete installation could cause a personal injury due to re, electric
shock, the unit falling or leakage of water.
• Use only specied cables for wiring. The wiring connections must be made
securely with no tension applied on the terminal connections. Also, never
splice the cables for wiring (unless otherwise indicated in this document).
Failure to observe these instructions may result in overheating or a re.
• If the supply cord is damaged, it must be replaced by the manufacturer, its
service agent or similarly qualied persons in order to avoid hazard.
• The -appliance shall be installed in accordance with national wiring regula
tions.
• Perform electrical work according to the installation manual and be sure to
use an exclusive circuit.
If the capacity of the power circuit is insufcient or there is incomplete elec-
trical work, it could result in a re or an electric shock.
• Attach the electrical part cover to the indoor unit and the service panel to
the outdoor unit securely.
If the electrical part cover in the indoor unit and/or the service panel in the
outdoor unit are not attached securely, it could result in a re or an electric
shock due to dust, water, etc.
• Be sure to use the part provided or specied 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.
• Ventilate the room if refrigerant leaks during operation.
If the refrigerant comes in contact with a ame, poisonous gases will be
released.
• When -pumping down the refrigerant, stop the compressor before discon
necting the refrigerant pipes. The compressor may burst if air etc. get into it.
• Please provide an exclusive circuit for the air conditioner and do not con-
nect other electrical appliances to it.
• Be sure to read “The following should always be observed for safety” be-
fore installing the air conditioner.
• Be sure to observe the cautions specied here as they include important
items related to safety.
•
The indications and meanings are as follows.
Warning:
Could lead to death, serious injury, etc.
Caution:
Could lead to serious injury in particular environments when operated incor-
rectly.
5. Refrigerant piping work......................................................................................... 6
6. Electrical work ...................................................................................................... 9
7. Maintenance ....................................................................................................... 13
8. Pumping down .................................................................................................... 13
MEANINGS OF SYMBOLS DISPLAYED ON THE UNIT
WARNING
(Risk of re)
This mark is for R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit.
In case that refrigerant type is R32, 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 OPERATION MANUAL carefully before operation.
Service personnel are required to carefully read the OPERATION MANUAL and INSTALLATION MANUAL before operation.
Further information is available in the OPERATION MANUAL, INSTALLATION MANUAL, and the like.
Phillips screwdriver
Level
Scale
Utility knife or scissors
65 mm hole saw
Torque wrench
Wrench (or spanner)
4 mm hexagonal wrench
Flare tool for R32, R410A
Gauge manifold for R32, R410A
Vacuum pump for R32, R410A
Charge hose for R32, R410A
Pipe cutter with reamer
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 differ.
Required Tools for Installation
Caution:
• Do not vent R32 into the atmosphere.
• Conrm that the installation satises “the requirements in this manual” and “the requirements of safety on site and environment”.
en
2
Caution:
• Perform grounding.
Do not connect the ground wire to a gas pipe, water pipe arrester or tel-
ephone ground wire. Defective grounding could cause an electric shock.
• Do not install the unit in a place where an inammable gas leaks.
If gas leaks and accumulates in the area surrounding the unit, it could cause
an explosion.
• Install a ground leakage breaker depending on the installation place (where
it is humid).
If a ground leakage breaker is not installed, it could cause an electric shock.
• Perform the drainage/piping work securely according to the installation
manual.
If there is a defect in the drainage/piping work, water could drop from the
unit and household goods could be wet and damaged.
• Fasten a are nut with a torque wrench as specied in this manual.
When fastened too tight, a are nut may broken after a long period and
cause a leakage of refrigerant.
2.1. Outdoor unit
• R32 is heavier than air—as well as other refrigerants—so tends to accumulate at
the base (in the vicinity of the oor). If R32 accumulates around base, it may reach
a ammable concentration in case room is small. To avoid ignition, maintaining a
safe work environment is required by ensuring appropriate ventilation. If a refrig-
erant leak is conrmed in a room or an area where there is insufcient ventilation,
refrain from using of ames until the work environment can be improved by ensur-
ing appropriate ventilation.
• Where it is not exposed to strong wind.
• Where airow is good and dustless.
• Where it is not exposed to rain and direct sunshine.
• Where neighbours are not annoyed by operation sound 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 x the unit legs.
• Where it is at least 3 m away from the antenna of TV set or radio. (Otherwise,
images would be disturbed or noise would be generated.)
• Please install it in an area not affected by snowfall or blowing snow. In areas with
heavy snow, please install a canopy, a pedestal and/or some bafe boards.
• Install the unit horizontally.
• Refrigerant pipes connection shall be accessible for maintenance purposes.
/ Install outdoor units in a place where at least one of the four sides is open, and in
a sufciently large space without depressions. (Fig. 2-1)
Caution:
Avoid the following places for installation where air conditioner trouble is li-
able to occur.
• Where there is too much machine oil.
• Salty environment as seaside areas.
• Hot-spring areas.
• Where sulde gas exists.
• Other special atmospheric areas.
The outdoor unit produces condensate during the heating operation. Select
the installation place to ensure to prevent the outdoor unit and/or the grounds
from being wet by drain water or damaged by frozen drain water.
2. Selecting the installation location
Fig. 2-1
OK OK
OK Not Acceptable
1. The following should always be observed for safety
Warning:
• When installing or relocating, or servicing the air conditioner, use only the
specied refrigerant (R32) to charge the refrigerant lines. Do not mix it with
any other refrigerant and do not allow air to remain in the lines.
If air is mixed with the refrigerant, then it can be the cause of abnormal high
pressure in the refrigerant line, and may result in an explosion and other
hazards.
The use of any refrigerant other than that specied for the system will cause
mechanical failure or system malfunction or unit breakdown. In the worst
case, this could lead to a serious impediment to securing product safety.
• Do not use means to accelerate the defrosting process or to clean, other
than those recommended by the manufacturer.
• The appliance shall be stored in a room without continuously operating ig-
nition sources (for example: open ames, an operating gas appliance or an
operating electric heater).
• Do not pierce or burn.
• Be aware that refrigerants may not contain an odour.
/ Pipe-work shall be protected from physical damage.
• The installation of pipe-work shall be kept to a minimum.
• Compliance with national gas regulations shall be observed.
• Keep any required ventilation openings clear of obstruction.
/ Do not use low temperature solder alloy in case of brazing the refrigerant
pipes.
/ When performing brazing work, be sure to ventilate the room sufciently.
Make sure that there are no hazardous or ammable materials nearby.
When performing the work in a closed room, small room, or similar location,
make sure that there are no refrigerant leaks before performing the work.
If refrigerant leaks and accumulates, it may ignite or poisonous gases may
be released.
/ The appliance shall be stored in a well-ventilated area where the room size
corresponds to the room area as specied for operation.
/ Keep gas-burning appliances, electric heaters, and other re sources (igni-
tion sources) away from the location where installation, repair, and other air
conditioner work will be performed.
If refrigerant comes into contact with a ame, poisonous gases will be re-
leased.
/ Do not smoke during work and transportation.

Produktspecifikationer

Varumärke: Mitsubishi
Kategori: Luftkonditionering
Modell: SUZ-M25-71VAD

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