Mitsubishi Electric VG79J799H01 Manuel utilisateur

Catégorie
Climatiseurs split-system
Taper
Manuel utilisateur
VG79J799H01 Required Tools for Installation
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
ENGLISH
REFRIGERANT
SPLIT-TYPE AIR CONDITIONERS
INSTALLATION MANUAL
Model names are indicated in 1-3.
When installing multi units, refer to the
installation manual of the multi unit for
outdoor unit installation.
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.
1. BEFORE INSTALLATION
MEANINGS OF SYMBOLS DISPLAYED ON INDOOR UNIT AND/OR OUTDOOR UNIT
WARNING
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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.
Before starting the connection setup of the Wi-Fi interface, check the safety precautions in OPERATING INSTRUCTIONS of the room air conditioner.
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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.)
Do not install the unit by yourself (user).
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injury due to the unit falling, or leakage of water. Consult
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installer.
Perform the installation securely referring to the
installation manual.
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injury 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.
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experienced electrician, according to the installation
manual. Be sure to use an exclusive circuit. Do not
connect other electrical appliances to the circuit.
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electric shock.
Earth the unit correctly.
Do not connect the earth to a gas pipe, water pipe, light-
ning rod, or telephone earth. Defective earthing could
cause electric shock.
Do not damage the wires by applying excessive pres-
sure with parts or screws.
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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.
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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 connection.
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gas may leak.
If gas leaks and accumulates in the area around the unit,
it could cause an explosion.
Do not use intermediate connection of the power
cord or the extension cord and do not connect many
devices to one AC outlet.
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contact, defective insulation, exceeding the permissible
current, etc.
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for the installation work.
The use of defective parts could cause an injury or leakage
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etc.
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-
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If 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
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When installing, relocating, or servicing the unit,
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refrigerant (R32) enters the refrigerant circuit.
Any presence of foreign substance such as air can cause
abnormal pressure rise and may result in explosion or
injury. The use of any refrigerant other than that speci-
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malfunction, or unit breakdown. In the worst case, this
could lead to a serious impediment to securing product
safety.
Do not discharge the refrigerant into the atmosphere.
If refrigerant leaks during installation, ventilate the
room. Check that the refrigerant does not leak after
installation has been completed.
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ing part of such a fan heater, kerosene heater, or cooking
stove, it will create harmful gas.
Use appropriate tools and piping materials for instal-
lation.
The pressure of R32 is 1.6 times more than R22. Not using
appropriate tools or materials and incomplete installation
could cause the pipes to burst or injury.
When pumping down the refrigerant, stop the com-
pressor before disconnecting the refrigerant pipes.
If the refrigerant pipes are disconnected while the com-
pressor 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.
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.
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in this manual.
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period and cause refrigerant leakage.
The unit shall be installed in accordance with national
wiring regulations.
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equipment, completely remove all of the refrigerant
from the air conditioner and ensure that the area is
well-ventilated.
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heating part, it will create harmful gas and there is risk of
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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 ignition sources (for exam-
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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 mini-
mum.
Compliance with national gas regulations shall be
observed.
Keep any required ventilation openings clear of ob-
struction.
Do not install the indoor unit equipped with the Wi-Fi
interface nearby the automatic control devices such
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It can cause accidents due to malfunctions.
Do not use the indoor unit equipped with the Wi-Fi
interface nearby the medical electrical equipment or
people who have a medical device such as a cardiac
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tor.
It can cause an accident due to malfunctions of the medical
equipment or device.
This indoor unit equipped with the Wi-Fi interface
should be installed and operated with a minimum
distance of 20 cm between the device and the user
or bystanders.
In Australia, only technicians that possess the appro-
priate license issued by the Australian Refrigeration
Council (ARC) should install this product.
1-2. SELECTING THE INSTALLATION LOCATION
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/outlet side may be exposed
directly to wind.
To prevent exposure to wind, install the outdoor unit with its air inlet side facing the
wall.
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side of the outdoor unit.
Avoid the following places for installation where air conditioner trouble is liable to occur.
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Where there is much machine oil.
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and factories, in which the properties of plastic could be changed and damaged).
Salty places such as the seaside.
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Where there is high-frequency or wireless equipment.
• Where there is emission of high levels of VOCs, including phthalate compounds,
formaldehyde, etc., which may cause chemical cracking.
The appliance shall be stored so as to prevent mechanical damage from occurring.
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Where cool (or warm) air spreads over the entire room.
Rigid wall without vibration.
Where it is not exposed to direct sunshine. Do not expose to direct sunshine also during
the period following unpacking to before use.
Where easily drained.
At a distance 1 m or more away from your TV and radio. Operation of the air conditioner
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device.
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make the infrared remote control operate the air conditioner normally. The heat from the
lights may cause deformation or the ultraviolet may cause deterioration.
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Where it is away from the other heat or steam source.
Please ensure that the Router supports the WPA2-AES encryption setting before com-
mencement of the installation of this indoor unit equipped with the Wi-Fi interface.
The End user should read and accept the terms and conditions of the Wi-Fi service before
commencement of the installation of this indoor unit equipped with the Wi-Fi interface.
This indoor unit equipped with the Wi-Fi interface should not be installed and connected to
any Mitsubishi Electric system which is to provide application critical cooling or heating.
REMOTE CONTROLLER
Where it is easy to operate and easily visible.
Where children cannot touch it.
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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.
Note:
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remote controller may not be received.
OUTDOOR UNIT
Where it is not exposed to strong wind. If the outdoor unit is exposed to a wind during
defrosting, the defrosting time will be longer.
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Where rain or direct sunlight can be avoided as much as possible.
Where neighbours are not annoyed by operation sound or hot (or cool) 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.
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.
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Install the unit horizontally.
Please install it in an area not affected by snowfall or blowing snow. In areas with heavy
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Note:
It is advisable to make a piping loop near outdoor unit so as to reduce vibration transmit-
ted from there.
INDOOR UNIT
CAUTION
(Could lead to serious injury in particular environments when operated incorrectly.)
Install an earth leakage breaker depending on the
installation place.
If an earth leakage breaker is not installed, it could cause
electric shock.
Perform the drainage/piping work securely accord-
ing to the installation manual.
If there is defect in the drainage/piping work, water could
drop from the unit, soaking and damaging household
goods.
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the outdoor unit.
This could cause injury.
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,
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clean.
Do not operate the air conditioner during interior
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WKHÀRRU
Before operating the air conditioner, ventilate the room
well after such work is performed. Otherwise, it may cause
volatile elements to adhere inside the air conditioner,
resulting in water leakage or scattering of dew.
To prevent damage from static electricity, touch
a nearby metal body to discharge static electric-
ity from yourself before touching the indoor unit
equipped with the Wi-Fi interface.
Static electricity from the human body may damage the
Wi-Fi interface unit.
Do not use the indoor unit equipped with the Wi-Fi
interface nearby other wireless devices, micro-
waves, cordless phones, or facsimiles.
It can cause malfunctions.
*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 Use wires in conformity with design 60245 IEC 57.
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*4 Use a copper pipe or a copper-alloy seamless pipe.
*5 Be careful not to crush or bend the pipe during pipe bending.
*6 Refrigerant pipe bending radius must be 100 mm or more.
*7 If pipe length exceeds 7 m, additional refrigerant (R32) charge is required. (No additional charge is required for pipe length
less than 7 m.)
Additional refrigerant = A × (pipe length (m) – 7)
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(EF25, 35, 42/EF50)
Pipe length and height difference
Max. pipe length 20/30 m
Max. height difference 12/15 m
Max. number of bends *5, *6 10
Refrigerant adjustment A *7 20 g/m
Insulation thickness *8, *9 8 mm
1-3. SPECIFICATIONS
Model Power supply *1 :LUHVSHFL¿FDWLRQV Pipe size
(thickness *3, *4) Maximum amount of
refrigerant charge *7
Indoor unit Outdoor unit Rated Voltage Frequency Breaker capacity Power supply Indoor/outdoor
connecting wire Gas / Liquid
MSZ-EF22VG(K)(W/B/S) —
230 V 50 Hz
——
4-core
1.0 mm2
ø9.52 / 6.35 mm
(0.8 mm)
MSZ-EF25VG(K)(W/B/S) MUZ-EF25VG 10 A 3-core
1.0 mm2
880 g
MSZ-EF35VG(K)(W/B/S) MUZ-EF35VG
1000 g
MSZ-EF42VG(K)(W/B/S) MUZ-EF42VG 12 A 3-core
1.5 mm2
MSZ-EF50VG(K)(W/B/S) MUZ-EF50VG 16 A 3-core
2.0 mm21510 g
Outdoor unit installation
Air inlet
Air outlet
40 mm
2-10 mm × 21 mm slot
800 mm
150 mm
500 mm
344.5 mm
285 mm
304-325 mm
(4)
(2) (1)
(6)
(7)
(3)
(5)
1-4. INSTALLATION DIAGRAM
When the piping is to be attached to a wall containing metals (tin plated) or metal
netting, use a chemically treated wooden piece 20 mm or thicker between the
wall and the piping or wrap 7 to 8 turns of insulation vinyl tape around the piping.
To use existing piping, perform COOL operation for 30 minutes and pump
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dimension for new refrigerant.
Appearance of the outdoor unit may differ from some models.
14 mm
or more
1.8 m to 2.3 m from the
ÀRRULVUHFRPPHQGHG
clear *2
100 mm
or more
100 mm
or more
200 mm *3
or more
*2 100 mm or more when front and sides
of unit are clear
Note:
*1 Place indoor/outdoor unit connecting wire (A) and
power supply cord (K) at least 1 m away from the TV
antenna wire.
After the leak test, apply insulating material tightly
so that there is no gap.
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(8) (I)
PARTS TO BE PROVIDED AT YOUR SITE
(A) Indoor/outdoor unit connecting wire*1 1
(B) Extension pipe 1
(C) Wall hole sleeve 1
(D) Wall hole cover 1
(E) 3LSH¿[LQJEDQG 2 to 5
(F) Fixing screw for (E) 4 × 20 mm 2 to 5
(G) Piping tape 1
(H) Putty 1
(I)
Drain hose
(or soft PVC hose, 15 mm inner
diameter or hard PVC pipe VP16)
1 or 2
(J) Refrigeration oil 1
(K) Power supply cord*1 1
ACCESSORIES
Check the following parts before installation.
<Indoor unit>
(1) Installation plate 1
(2) ,QVWDOODWLRQSODWH¿[LQJVFUHZ
4 × 25 mm 5
(3) Wireless remote controller 1
(4) Felt tape
(For left or left-rear piping) 1
(5) Battery (AAA) for (3) 2
(6) Remote controller holder 1
(7) Fixing screw for (5) 3.5 × 16 mm
(Black) 2
<Outdoor unit>
(8) Drain socket 1
Air inlet
*3 When any 2 sides of left, right and rear of unit are clear.
IMPORTANT NOTES
Units should be installed by licensed contractor according to local code requirements.
To comply with the requirements of Australian standard AS/NZS 3000 electrical
installations (wiring rules), the electrical wiring required between the indoor and
outdoor units must be installed by a licenced electrical contractor.
Check that cabling will not be subject to wear, corrosion, excessive pressure,
vibration, sharp edges or any other adverse environmental effects. The check shall
also take into account the effects of aging or continual vibration from sources such as
compressors or fans.
79
mm or more/
133
mm or more for
left and left rear piping
(using spacer)
107.5 mm
or more 117.5
mm
or more
350 mm
or more
Note:
Install the unit horizontally.
Do not use drain socket (8) in cold regions. Drain may freeze and make the
fan stop.
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.
Drain piping for outdoor unit
• Provide drain piping before indoor and outdoor pip-
ing connection.
• Connect drain hose (I) I.D.15 mm as shown in the
illustration.
• Make sure to provide drain piping with a downhill
JUDGHIRUHDV\GUDLQÀRZ
Be sure to use wall hole sleeve (C)
to prevent indoor/outdoor connect-
ing wire (A) from contacting metal
parts in the wall and to prevent
damage by rodents in case the
wall is hollow.
Indoor unit
Wall hole
sleeve (C)
Cut off the
extra length. 3LSH¿[LQJEDQG(
Wall hole cover (D)
Fixing screw (F)
Seal the wall hole
gap with putty (H).
Fix the pipe to wall
ZLWKSLSH¿[LQJEDQG
(E).
WARNING
7RDYRLGULVNRI¿UHÀDUHFRQQHFWLRQVKRXOGEHLQVWDOOHGRXWGRRUV
5HXVDEOHPHFKDQLFDOFRQQHFWRUVDQGÀDUHGMRLQWVDUHQRWDOORZHG
indoors.
WARNING
2-1. FIXING OF INSTALLATION PLATE
 )LQGDVWUXFWXUDOPDWHULDOVXFKDVDVWXGLQWKHZDOODQG¿[LQVWDOODWLRQSODWHKRUL-
]RQWDOO\E\WLJKWHQLQJWKH¿[LQJVFUHZV¿UPO\
 7RSUHYHQWLQVWDOODWLRQSODWHIURPYLEUDWLQJEHVXUHWRLQVWDOOWKH¿[LQJVFUHZVLQWKH
KROHVLQGLFDWHGLQWKHLOOXVWUDWLRQ)RUDGGHGVXSSRUW¿[LQJVFUHZVPD\DOVREHLQVWDOOHG
in other holes.
W
hen the knockout is removed, apply vinyl tape to the knockout edges to prevent damag-
ing the wires.
When bolts recessed in the concrete wall are to be utilized, secure installation plate (1)
using 11 × 20 · 11 × 26 oval hole (450 mm pitch).
If the recessed bolt is too long, change it for a shorter one available in the market.
2-2. WALL HOLE DRILLING
1) Determine the wall hole position.
2) Drill a ø65 mm hole. The outdoor side should be 5 to
7 mm lower than the indoor side.
3) Insert wall hole sleeve (C).
2-3. CONNECTING WIRES FOR INDOOR UNIT
You can connect indoor/outdoor lead wire without removing the front panel.
1) Open the front panel.
2) Remove VA clamp.
3) Pass indoor/outdoor unit connecting wire (A) from the back of the indoor unit and process
the end of the wire.
/RRVHQWHUPLQDOVFUHZDQGFRQQHFW¿UVWWKHHDUWKZLUHWKHQLQGRRURXWGRRUXQLWFRQ-
necting wire (A) to the terminal block. Be careful not to make mis-wiring. Fix the wire to
the terminal block securely so that no part of its core is appeared, and no external force
is conveyed to the connecting section of the terminal block.
5) Firmly tighten the terminal screws to prevent them from loosening. After tightening, pull
WKHZLUHVOLJKWO\WRFRQ¿UPWKDWWKH\GRQRWPRYH
6) Secure indoor/outdoor unit connecting wire (A) and the earth wire with the VA clamp.
Never fail to hook the left claw of the VA clamp. Attach the VA clamp securely.
2-4. PIPE FORMING AND DRAIN PIPING
Pipe Forming
Place the drain hose below the refrigerant piping.
Make sure that the drain hose is not heaved or snaked.
Do not pull the hose when applying the tape.
When the drain hose passes the room, be sure to wrap insula-
tion material (obtainable at a store) around it.
2. INDOOR UNIT INSTALLATION
Rear, right, or downward piping
1) Put the refrigerant piping and the drain hose togeth-
HUWKHQ¿UPO\DSSO\SLSLQJWDSH*IURPWKHHQG
2) Insert the piping and the drain hose into the wall
hole sleeve (C), and hook the upper part of the
indoor unit on the installation plate (1).
3) Check if the indoor unit is hooked securely on the installation plate (1) by moving the
unit to left and right.
4) Thrust the lower part of the indoor unit into the installation plate (1).
Drain Piping
If the extension drain hose has to pass through a room, be sure to wrap it with commer-
cially sold insulation.
 7KHGUDLQKRVHVKRXOGSRLQWGRZQZDUGIRUHDV\GUDLQÀRZ)LJ
If the drain hose provided with the indoor unit is too short, connect it with drain hose (I)
that should be provided at your site. (Fig. 2)
When connecting the drain hose to the hard vinyl chloride pipe, be sure to insert it securely
into the pipe. (Fig. 3)
Do not make drain piping as shown below.
Do not raise Accumulated
drain water
Air
Waving
Water
leakage
Water
leakage
Water
leakage
Tip of drain
hose dipped
in water
Ditch
At least
50 mm
gap
Downward
slope
Drain
hose
Soft hose
I.D. 15 mm
Drain hose
Hard vinyl chloride
pipe I.D. 30 mm
Insert
securely
Different
diameter joint
70 cm
or more
Fig. 1 Fig. 2 Fig. 3
For future servicing, give extra length to
the connecting wires.
Make earth wire a little longer than others.
(More than 60 mm)
Do not fold the excess wire, or cram it into
small space. Take caution not to damage
the wires.
Be sure to attach each screw to its corre-
spondent terminal when securing the cord
and/or the wire to the terminal block.
Note: Do not place the wires between the
indoor unit and the installation plate (1).
Damaged wire could cause heat genera-
WLRQRU¿UH
Wall
Outdoor
side
ø65 mm 5-7 mm
Installation plate (1)
Center of
ø65 mm hole
117.5 mm
or more
107.5 mm
or more
79 mm or more
133 mm or more for left/left rear
piping (using spacer)
Ceiling
Wall
Wall
Fixing screw (2)
100 mm
Level
* Same for left hole.
VA clamp
Indoor/outdoor unit
connecting wire (A)
Lead wire
15 mm
35 mm
Fixing screw
Indoor terminal block
Indoor/outdoor
unit connecting
wire (A)
Outdoor terminal block
Earth wire
(green/yellow)
S1 S2 S3
S1 S2 S3
Felt tape (4)
Piping tape (G) Cut off in case of
left piping.
Drain cap
Drain cap
Drain hose
Drain cap
Drain hose
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
1) Put the refrigerant piping and the drain hose together,
WKHQ¿UPO\DSSO\IHOWWDSHIURPWKHHQG
Felt tape (4) overlap width should be 1/3 the tape width.
Use a bandage stopper at the end of felt tape (4).
2) Pull out the drain cap at the rear right of the indoor unit.
(Fig. 1)
Hold the convex section at the end and pull the drain
cap.
3) Pull out the drain hose at the rear left of the indoor unit.
(Fig. 2)
Hold the claw marked by the arrows and pull out the
drain hose forward.
4) Put the drain cap into the section to which the drain hose
is to be attached at the rear of the indoor unit. (Fig. 3)
Insert not sharp-edged tools such as screwdrivers into
the hole at the end of the cap and insert the cap fully
into the drain pan.
5) Insert the drain hose fully into the drain pan at the rear
right of the indoor unit. (Fig. 4)
Check if the hose is hooked securely to the projection
of its inserting part at the drain pan.
6) Insert the drain hose into wall hole sleeve (C), and hook
the upper part of indoor unit on installation plate (1).
Then, move the indoor unit completely to the left in order
to make placing the piping in the back space of the unit
easier.
7) Cut out a piece of cardboard from the shipping box, roll
it up, hook it onto the back rib, and use it as a spacer to
lift the indoor unit. (Fig. 5)
8) Connect the refrigerant piping with the extension pipe
(B).
9) Thrust the lower part of the indoor unit into the installation
plate (1).
Left or left-rear piping
Note:
Be sure to reattach the drain hose
and the drain cap in case of left or
left-rear piping.
Otherwise, it could cause drops of
water to drip down from the drain
hose.
Liquid pipe
Gas pipe
Felt tape (4)
Indoor/outdoor unit
connecting wire (A)
Piping tape (G)
Insert the
scale. *
Align the
scale with
the line. *
Cut off in case of
right piping.
Cut off in case of
downward piping.
Terminal block
Burr Copper pipe
Spare reamer
Pipe cutter
3-2. FLARING WORK
1) Cut the copper pipe correctly with pipe cutter. (Fig. 1, 2)
2) Completely remove all burrs from the cut cross section
of pipe. (Fig. 3)
Put the end of the copper pipe to downward direction
as you remove burrs in order to avoid to let burrs drop
in the piping.
5HPRYHÀDUHQXWVDWWDFKHGWRLQGRRUDQGRXWGRRUXQLWV
then put them on pipe having completed burr removal.
1RWSRVVLEOHWRSXWWKHPRQDIWHUÀDULQJZRUN
4) Flaring work (Fig. 4, 5). Firmly hold copper pipe in the
dimension shown in the table. Select A mm from the table
according to the tool you use.
5) Check
 &RPSDUHWKHÀDUHGZRUNZLWK)LJ
 ,IÀDUHLVQRWHGWREHGHIHFWLYHFXWRIIWKHÀDUHGVHF
WLRQDQGGRÀDULQJZRUNDJDLQ
3-3. PIPE CONNECTION
 )DVWHQÀDUHQXWZLWKDWRUTXHZUHQFKDVVSHFL¿HGLQWKHWDEOH
 :KHQIDVWHQHGWRRWLJKWÀDUHQXWPD\EUHDNDIWHUDORQJSHULRGDQGFDXVHUHIULJHUDQWOHDN
age.
Be sure to wrap insulation around the piping. Direct contact with the bare piping may result
in burns or frostbite.
Indoor unit connection
Connect both liquid and gas pipings to indoor unit.
 $SSO\DWKLQFRDWRIUHIULJHUDWLRQRLO-RQWKHÀDUHGHQGVRIWKHSLSHV'RQRWDSSO\UHIULJHUD
tion oil on screw threads. Excessive tightening torque will result in damage on the screw.
 )RUFRQQHFWLRQ¿UVWDOLJQWKHFHQWHUWKHQWLJKWHQWKH¿UVWWRWXUQVRIÀDUHQXWE\KDQG
Use tightening torque table above as a guideline for indoor unit side union joint section, and
WLJKWHQXVLQJWZRZUHQFKHV([FHVVLYHWLJKWHQLQJGDPDJHVWKHÀDUHVHFWLRQ
Pipe diameter
(mm)
Nut
(mm)
A (mm) Tightening torque
Clutch type
tool for R32,
R410A
Clutch type
tool for
R22
Wing nut
type tool
for R22
N•m kgf•cm
ø6.35 (1/4”) 17
0 to 0.5 1.0 to 1.5
1.5 to 2.0 13.7 to 17.7 140 to 180
ø9.52 (3/8”) 22 34.3 to 41.2 350 to 420
ø12.7 (1/2”) 26 2.0 to 2.5 49.0 to 56.4 500 to 575
ø15.88 (5/8”) 29 73.5 to 78.4 750 to 800
Copper
pipe
Good
Tilted Uneven Burred
No good
Fig. 1
Fig. 2
Clutch type
Flaring tool
Fig. 4
Fig. 3
Smooth all
around
Even length
all around
Inside is shin-
ing without any
scratches.
Flare nut
Die
Fig. 5 Fig. 6
3. OUTDOOR UNIT INSTALLATION
Copper pipe
Wing nut type
WARNING
When installing the unit, securely connect the refrigerant
pipes before starting the compressor.
3-1. CONNECTING WIRES FOR OUTDOOR UNIT
1) Open the service panel.
2) Loosen terminal screw, and connect indoor/outdoor unit connecting wire (A) from
the indoor unit correctly on the terminal block. Be careful not to make mis-wiring. Fix
the wire to the terminal block securely so that no part of its core is appeared, and no
external force is conveyed to the connecting section of the terminal block.
3) Firmly tighten the terminal screws to prevent them from loosening. After tightening,
SXOOWKHZLUHVOLJKWO\WRFRQ¿UPWKDWWKH\GRQRWPRYH
4) Connect power supply cord (K).
5)
Fix indoor/outdoor unit connecting wire (A) and power supply cord (K) with the cord clamp.
6) Close the service panel securely.
Make earth wire a little longer than others. (More than 100 mm)
For future servicing, give extra length to the connecting wires.
Be sure to attach each screw to its correspondent terminal when securing the cord
and/or the wire to the terminal block.
35 mm
15 mm
Lead wire
Power supply cord (K)
Outdoor unit connection
Connect pipes to stop valve pipe joint of the outdoor unit in
the same manner applied for indoor unit.
For tightening, use a torque wrench or spanner and use the
same tightening torque applied for indoor unit.
3-4. INSULATION AND TAPING
1) Cover piping joints with pipe cover.
2) For outdoor unit side, surely insulate every piping including valves.
3) Using piping tape (G), apply taping starting from the entry of outdoor unit.
Stop the end of piping tape (G) with tape (with adhesive agent attached).
• When piping have to be arranged through above ceiling, closet or where the temperature
and humidity are high, wind additional commercially sold insulation to prevent condensa-
tion.
Terminal block
Terminal block
Cord clamp
Power supply cord (K)
Indoor/outdoor unit
connecting wire (A)
$OZD\V¿[WKHSRZHU
supply cord on this side.
Insert the end of the cable
tie in the rectangle hole.
<EF25, 35, 42>
<EF50>
WARNING
7RDYRLGULVNRI¿UHÀDUHFRQQHFWLRQVKRXOGEHLQVWDOOHGRXWGRRUV
5HXVDEOHPHFKDQLFDOFRQQHFWRUVDQGÀDUHGMRLQWVDUHQRWDOORZHGLQGRRUV
:KHQFRQQHFWLQJWKHUHIULJHUDQWSLSLQJE\EUD]LQJUDWKHUWKDQXVLQJÀDUHFRQQHFWLRQV
complete all brazing prior to connecting indoor unit to outdoor unit.
4-1. PURGING PROCEDURES AND LEAK TEST
1) Remove service port cap of stop valve on the side of the outdoor unit gas pipe. (The stop
valves are fully closed and covered in caps in initial state.)
2) Connect gauge manifold valve and vacuum pump to service port of stop valve on the gas
pipe side of the outdoor unit.
4-2. TEST RUN
1) Insert power supply plug into the power outlet and/or turn on the
breaker.
2) Press the E.O. SW once for COOL, and twice for HEAT operation.
Test run will be performed for 30 minutes. If the upper lamp of the
operation indicator blinks every 0.5 seconds, inspect the indoor/
outdoor unit connecting wire (A) for mis-wiring. After the test run,
emergency mode (set temperature 24ºC) will start.
3) To stop operation, press the E.O. SW several times until all LED
lamps turn off. Refer to operating instructions for details.
4) Checking the remote (infrared) signal reception
• Press the OFF/ON button on the remote controller (3) and
check that an electronic sound is heard from the indoor unit.
Press the OFF/ON button again to turn the air conditioner off.
• Once the compressor stops, the restart preventive device
operates so the compressor will not operate for 3 minutes to
protect the air conditioner.
Stop valve for
GAS
Stop valve cap
(Torque 19.6 to
29.4 N•m, 200
to 300 kgf•cm)
Vacuum pump (or the vacuum
pump with the function to
SUHYHQWWKHEDFNÀRZ
Gauge manifold valve
(for R32, R410A)
Compound pressure gauge
(for R32, R410A)
0.101 MPa
(760 mmHg)
Handle
Low Handle High
Adapter for
preventing the
EDFNÀRZ
Charge hose
(for R32, R410A)
*Close
*Open
Hexagonal wrench
Precautions when using the control valve When attaching the control valve
to the service port, valve core may
deform or loosen if excess pressure
is applied. This may cause gas leak.
Service port
Body
Close
<R32>
Open
Control
valve
A
When attaching the control valve to
the service port, make sure that the
valve core is in closed position, and
then tighten part A. Do not tighten
part A or turn the body when valve
core is in open position.
Service port cap
(Torque 13.7 to
17.7 N•m, 140 to
180 kgf•cm)
*4 to 5 turns
3) Run the vacuum pump. (Vacuumize until 500 microns is achieved.)
4) Check the vacuum with gauge manifold valve, then close gauge manifold valve, and stop
the vacuum pump.
5) Leave as it is for one or two minutes. Make sure pointer gauge manifold valve remains
LQWKHVDPHSRVLWLRQ&RQ¿UPWKDWSUHVVXUHJDXJHVKRZV±03D>*DXJH@±
mmHg).
6) Remove gauge manifold valve quickly from service port of stop valve.
Stop valve
for LIQUID
Caution:
After test run or remote signal reception check, turn off the unit with the E.O. SW or
the remote controller before turning off the power supply. Not doing so will cause the
unit to start operation automatically when power supply is resumed.
To the user
After installing the unit, make sure to explain the user about auto restart function.
• If auto restart function is unnecessary, it can be deactivated. Consult the service
representative to deactivate the function. Refer to the service manual for details.
4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN
Pressure gauge
(for R32, R410A)
Charge
hose
Make sure to re-
place the cap after
the operation.
4-4. EXPLANATION TO THE USER
Using the OPERATING INSTRUCTIONS, explain to the user how to use the air conditioner
KRZWRXVHWKHUHPRWHFRQWUROOHUKRZWRUHPRYHWKHDLU¿OWHUVKRZWRFOHDQSUHFDXWLRQV
for operation, etc.).
Recommend the user to read the OPERATING INSTRUCTIONS carefully.
7RDYRLGULVNRI¿UHPDNHVXUHWKDWWKHUHDUHQRÀDPPDEOHKD]DUGVRULJQLWLRQ
risks before opening the stop valves.
7) After refrigerant pipes are connected and evacuated, fully open all stop valves on both
sides of gas pipe and liquid pipe. Operating without fully opening lowers the performance
and this causes trouble.
8) Refer to 1-3., and charge the prescribed amount of refrigerant if needed. Be sure to charge
slowly with liquid refrigerant. Otherwise, composition of the refrigerant in the system may
be changed and affect performance of the air conditioner.
9) Tighten cap of service port to obtain the initial status.
10) Leak test
4-3. AUTO RESTART FUNCTION
This product is equipped with an auto restart function. When the power supply is stopped
during operation, such as during blackouts, the function automatically starts operation in
the previous setting once the power supply is resumed. (Refer to the operating instructions
for details.)
WARNING
Emergency operation
switch (E.O. SW)
6-3. PUMPING DOWN
When relocating or disposing of the air conditioner, pump down the system following the
procedure below so that no refrigerant is released into the atmosphere.
1) Connect the gauge manifold valve to the service port of the stop valve on the gas pipe side
of the outdoor unit.
2) Fully close the stop valve on the liquid pipe side of the outdoor unit.
3) Close the stop valve on the gas pipe side of the outdoor unit almost completely so that it
FDQEHHDVLO\FORVHGIXOO\ZKHQWKHSUHVVXUHJDXJHVKRZV03D>*DXJH@NJIFPð
4) Start the emergency COOL operation.
To start the emergency operation in COOL mode, disconnect the power supply plug and/
or turn off the breaker. After 15 seconds, connect the power supply plug and/or turn on
the breaker, and then press the E.O. SW once. (The emergency COOL operation can be
performed continuously for up to 30 minutes.)
5) Fully close the stop valve on the gas pipe side of the outdoor unit when the pressure gauge
VKRZVWR03D>*DXJH@DSSUR[WRNJIFPð
6) Stop the emergency COOL operation.
Press the E.O. SW several times until all LED lamps turn off. Refer to operating instructions
for details.
When pumping down the refrigerant, stop the compressor before disconnecting the
refrigerant pipes. The compressor may burst if air etc. get into it.
WARNING
6. RELOCATION AND MAINTENANCE
5. CONNECTION SETUP OF THE Wi-Fi INTERFACE ( VGK TYPE ONLY)
This product is equipped with the Wi-Fi Interface as standard.
Refer to the OPERATING INSTRUCTIONS provided with the indoor unit for connection with the router.
6-1. REMOVING AND INSTALLING THE PANEL ASSEM
BLY
Do not move the vane by force. It will cause a malfunction.
CAUTION
6-2. REMOVING THE INDOOR UNIT
Remove the bottom of the indoor unit from the installa-
tion plate.
When releasing the corner part, release both left and right
bottom corner part of indoor unit and pull it downward and
IRUZDUGDVVKRZQLQWKH¿JXUHRQWKHULJKW
Removal procedure
1) Unlock the upper and lower vanes as
shown in and using a thin instru-
ment. Then, remove the horizontal vanes.
5HPRYHWKHVFUHZVZKLFK¿[WKHSDQHO
assembly.
3) Remove the panel assembly. Be sure to
UHPRYHLWVERWWRPULJKWHQG¿UVW
Installation procedure
1) Install the panel assembly following the removal
procedure in reverse.
2) Be sure to press the positions as indicated by the
arrows in order to attach the assembly completely to
the unit.
3) Install the horizontal vanes.
3
33
3
Unlock
Upper and
lower vanes
This product is designed and intended for use in the residential, commercial
and light-industrial environment.
HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU,
TOKYO 100-8310, JAPAN
7. CONNECTING THE INTERFACE/CONNECTOR CABLE TO THE AIR CONDITIONER
Fix the connecting cable at the prescribed position securely.
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WARNING
Connect the INTERFACE/CONNECTOR CABLE to the Indoor electronic control P.C. board of the air conditioner with the connecting cable.
Cutting or extending the connecting cable of the INTERFACE/CONNECTOR CABLE results in defects in connecting.
Do not bundle the connecting cable together with power supply cord, indoor/outdoor connecting wire, and/or earth wire.
Keep as much distance as possible between the connecting cable and those wires.
The thin part of the connecting cable should be stored and placed where customers cannot touch it.
Connecting
CN105
Air conditioner
Thin part of the connecting cable.
Place this part where customers cannot touch it.
Thick part of the connecting cable
Indoor electronic
control P.C. board
CN105 for INTERFACE
CN104 for CONNECTOR CABLE
Bundle CN105 and CN104
cables with cable tie.
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In case of simultaneous connection of CN104
and CN105.
CN105
CN104
1 Remove the panel and the lower right corner box.
2 Open the covers of the Indoor electronic control P.C. board.
3 Connect the connecting cable to CN105 and/or CN104 on the Indoor
electronic control P.C. board.
Pass the thin part of the connecting cable through the rib as shown in the
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4 Attach the cable clamp provided with Interface to the thick part of the
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6 Close the covers of the Indoor electronic control P.C. board.
Be careful not to catch the thin part of the connecting cable in the cover.
Reinstall the panel and the lower right corner box.
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Mitsubishi Electric VG79J799H01 Manuel utilisateur

Catégorie
Climatiseurs split-system
Taper
Manuel utilisateur

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