Mitsubishi Electric MSZ-GS15NA-U1 Mini Split Heat Pump Systems Manuel utilisateur

Catégorie
Climatiseurs split-system
Taper
Manuel utilisateur
1. BEFORE INSTALLATION
1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
Be sure to read these safety precautions and instructions.
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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.
DG79A04VH01
SPLIT-TYPE AIR CONDITIONERS
INSTALLATION MANUAL
ENGLISH
Required Tools for Installation
Phillips screwdriver
Level
Scale
Utility knife or scissors
3 in. (75 mm) hole saw
Torque wrench
Wrench (or spanner)
5/32 in. (4 mm) hexagonal
wrench
Flare tool for R410A
Gauge manifold for R410A
Vacuum pump for R410A
Charge hose for R410A
Pipe cutter with reamer
MSZ-GS06/09/12/15NA
MSY-GS09/12/15NA
When installing multi units, refer to the
installation manual of the multi unit for
outdoor unit installation.
Do not install the unit by yourself (user).
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whom you purchased the unit.
Follow the instructions detailed in the installation manual.
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ing, 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 that can bear the weight of the unit.
If the installation location cannot bear the weight of the unit, the unit could fall
causing injury.
Do not alter the unit.
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Perform electrical work according to the installation manual and be sure to use
an exclusive circuit. Do not connect other electrical appliances to the circuit.
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Ground the unit correctly.
Do not connect the ground wire to a gas pipe, water pipe, lightning rod or tel-
ephone ground. Defective grounding could cause electric shock.
Do not damage the wires.
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Be sure to shut off the main power when setting up the indoor P.C. board or
wiring.
Failure to do so could cause electric shock.
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If gas leaks and accumulates around the unit, it could cause an explosion.
Do not use intermediate connection of the power cord or the extension cord.
Do not connect many devices to one AC outlet.
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an electric shock, the unit falling, etc.
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
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Securely attach the electrical cover to the indoor unit and the service panel to
the outdoor unit.
If the electrical cover of the indoor unit and/or the service panel of the outdoor unit are
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an electric shock.
When installing, relocating, or servicing the unit, make sure that no substance
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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
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breakdown. In the worst case, this could lead to a serious impediment to securing
product safety.
Do not discharge the refrigerant into the atmosphere. Check that the refriger-
ant gas does not leak after installation has been completed. If refrigerant leaks
during installation, ventilate the room.
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heater, space heater, stove, etc., harmful gases will be generated.
Use appropriate tools and piping materials for installation.
The pressure of R410A is 1.6 times higher than R22. Not using the appropriate
tools and materials, or improper installation could cause the pipes to burst causing
an injury.
When pumping down the refrigerant, stop the compressor 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, causing the pipes to burst.
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 the
stop valve is open, air could be drawn in and the pressure in the refrigeration cycle
could become abnormally high, causing the pipes to burst.
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Install the unit according to national wiring regulations.
When opening or closing the valve below freezing temperatures, refrigerant may
spurt out from the gap between the valve stem and the valve body, resulting in
injuries.
Depending on the installation area, install a Ground Fault Interrupt (GFI) circuit
breaker.
If the Ground Fault Interrupt (GFI) circuit breaker is not installed, an electric shock
could occur.
Perform the drainage/piping work securely according to the installation manual.
If there is defect in the drainage/piping work, water could drip from the unit, and
damage household items.
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This could cause injury.
Do not install the outdoor unit where small animals may live.
If small animals enter the unit and damage its electrical parts, it could cause a
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CAUTION (Could lead to serious injury when operated incorrectly.)
WARNING (Could lead to death or serious injury.)
Pipe Outside diameter Minimum wall
thickness Insulation thickness Insulation material
inch (mm)
For liquid 1/4 (6.35) 0.0315 (0.8) 5/16 (8) Heat resistant foam
plastic 0.045 Spe-
FL¿FJUDYLW\
For gas 3/8 (9.52) 0.0315 (0.8) 5/16 (8)
1/2 (12.7) 0.0315 (0.8) 5/16 (8)
Limits
Pipe length MSZ/MSY-GS09/12/15NA 65 ft. (20 m) max.
Height difference MSZ/MSY-GS09/12/15NA 40 ft. (12 m) max.
No. of bends 10 max.
Pipe length
Up to 25 ft. (7.5 m) No additional charge is required.
Exceeding 25 ft. (7.5 m) Additional charge is required.
(Refer to the table below.)
Refrigerant to be added MSZ/MSY-GS09/12/15NA 1.08 oz each 5 ft. (20 g/m)
1-3. SPECIFICATIONS
1-3-1. POWER SUPPLY AND INDOOR/OUTDOOR
WIRE CONNECTION
Power should be taken from an exclusive branched circuit.
Wiring work should be based on applicable technical standards.
Wiring connections should be made following the diagram.
Securely tighten screws.
Connecting wires and the ground wire
Use solid conductor Min. AWG14 or stranded conductor
Min. AWG14.
Use double insulated copper wire with 600 V insulation.
Use copper supply wire.
* Follow local electrical codes.
Power supply cable and ground wire
Use solid or stranded conductor Min. AWG14.
Use copper supply wire.
* Follow local electrical codes.
Note:
When the indoor unit is powered from the outdoor unit, depend-
ing on local code, a disconnect switch needs to be installed to a
power supply circuit.
1-3-2. REFRIGERANT PIPES
To prevent condensation, insulate the two refrigerant pipes.
CAUTION
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the right). Excessive insulation may cause incorrect instal-
lation of the indoor unit, and too little insulation may cause
condensate to form.
Refrigerant pipe bending radius must be 4 in. (100 mm) or more.
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sides.
Remove the valve cover from the outdoor unit, then connect
the pipe.
Refrigerant pipes are used to connect the indoor and outdoor
units.
Be careful not to crush or over bend the pipe in pipe bending.
Refrigerant adjustment... If pipe length exceeds 25 ft. (7.5 m),
additional refrigerant (R410A) charge is required.
(The outdoor unit is charged with refrigerant for pipe length up
to 25 ft. [7.5 m])
Please carefully consider the indoor unit location when piping
lengths are less than 16 ft. (5 m) as there could be intermittent
noises during normal operation that would be noticeable in very
quiet environments.
1-2. SELECTING THE INSTALLATION LOCATION
INDOOR UNIT
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Where cool (or warm) air spreads over the entire room.
On a rigid wall to reduce the possibility of vibration.
Where it is not exposed to direct sunlight. Do not expose
to direct sunlight also during the period following unpack-
ing to before use.
Where it can be easily drained.
At a distance 3 ft. (1 m) or more away from a TV and
radio. Operation of the air conditioner may interfere with
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the affected device.
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incandescent lights (so the infrared remote control can
operate the air conditioner normally).
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Where it is away from the other heat or steam source.
Note:
Install the indoor unit high on the wall where air can
distribute over the entire room.
REMOTE CONTROLLER
Where it is convenient to operate and easily visible.
Where children cannot easily touch it.
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Check that signals from the remote controller from
that position are received by the indoor unit (‘beep’
or ‘beep beep’ receiving tone sounds). Then, attach
remote controller holder to a pillar or wall and install
wireless remote controller.
Note:
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the signal from the wireless remote controller may not be
received.
OUTDOOR UNIT
Where it is not overly exposed to strong winds. If the
outdoor unit is exposed to a wind during defrosting, the
defrosting time will be longer.
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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.
If installing the unit in a location high above the ground,
be sure to secure the unit legs.
Where it is at least 10 ft. (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 recep-
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device.
Install the unit horizontally.
Please install it in an area not affected by snowfall or
blowing snow. In areas with heavy snow, please install
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Note:
It is advisable to make a piping loop near outdoor unit
so as to reduce vibration.
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location where continuous direct sunlight or excessive
water can be avoided as much as possible.
Note:
When operating the air conditioner in low outside tem-
perature, 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 and
DEDIÀHERDUG
on the air outlet side.
Avoid the following places for installation where air
conditioner trouble is liable to occur.
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Where there is an excessive amount of machine oil
in the air.
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oily smoke (such as cooking areas and factories, in
which the properties of plastic could be changed and
damaged).
Salty places such as the seaside.
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sewage, waste water.
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.
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MODEL
INDOOR MSZ-
GS06NA
MSZ-GS09NA
MSY-GS09NA
MSZ-GS12NA
MSY-GS12NA
MSZ-GS15NA
MSY-GS15NA
OUTDOOR -
MUZ-
GS09NA(H
)
MUY-
GS09NA
MUZ-
GS09NAHZ
MUZ-
G12NA(H)
MUY-
GS12NA
MUZ-
GS12NAHZ
MUZ-
G15NA(H)
MUY-
GS15NA
MUZ-
GS15NAHZ
INDOOR UNIT
Power supply (V, PHASE, Hz) 208/230, 1, 60
Min. Circuit Ampacity (A) 1.0
Fan motor (F.L.A.) (A) 0.75
OUTDOOR UNIT
Power supply (V, PHASE, Hz) 208/230, 1, 60
Max. Fuse size (time delay) (A) * 15 15 15 15 15 15
Min. Circuit Ampacity (A) * 10 10 10 10 10 10
Fan motor (F.L.A.) (A) * 0.50 0.50 0.50 0.50 0.50 0.50
Compressor
(R.L.A) (A) MSZ * 6.7 6.7 6.7 7.4 7.4 7.4
MSY * 6.7 - 6.7 - 7.4 -
(L.R.A) (A) MSZ * 8.4 8.4 8.4 9.2 9.2 9.2
MSY * 8.4 - 8.4 - 9.2 -
Control voltage Indoor unit - Remote controller: (Wireless)
Indoor unit - Outdoor unit: DC12-24 V (Polar)
* MSZ-GS06NA is a dedicated indoor unit for multi system. Refer to the installation manual of the multi unit
for details.
1-4. INSTALLATION DIAGRAM
ACCESSORIES
Check the following parts before installation.
<Indoor unit>
(1) Installation plate 1
(2)
Attachment screws for the installa-
tion plate
4 × 25 mm
5
(3) Wireless remote controller 1
(4) Felt tape (For left or left-rear piping) 1
(5) Remote controller holder 1
(6)
Screws for the remote controller
holder
3.5 × 16 mm (Black)
2
(7) Battery (AAA) for (3) 2
(8) $LUFOHDQLQJ¿OWHU 2
FIELD-SUPPLIED PARTS
(A)
Indoor/outdoor unit connecting wire*1
1
(B) Extension pipe 1
(C) Wall hole sleeve 1
(D) Wall hole cover 1
(E) Pipe attachment strap 2 to 5
(F) Screw for (E) 4 × 20 mm 2 to 5
(G) Piping tape 1
(H) Putty 1
(I)
Drain hose
(or soft PVC hose, 19/32 in. [15 mm]
inner diameter or hard PVC pipe
VP16)
2 to 5
(J) Refrigerant oil 1
(K) Power supply cord *11
Units should be installed by licensed contractor
according to local code requirements.
Indoor unit
Wall hole
sleeve (C)
Cut off the
extra length. Pipe attachment
strap (E)
Use the wall hole sleeve
(C) to prevent indoor/
outdoor connecting wire
(A) from contacting metal
parts in the wall and to
protect the wiring from
rodents.
Wall hole cover (D)
Seal the wall hole
gap with putty (H).
Attach the pipe to
wall with pipe at-
tachment strap (E).
Attachment screw (F)
After the leak test, apply insulating mate-
rial tightly so that there is no gap.
When the piping is to be attached to a wall
comprised of tin plate or metal netting, use
chemically treated wooden piece 25/32 in.
(20 mm) or thicker between the wall and
the piping, or wrap insulation vinyl tape 7 to
8 turns around the piping.
To use existing piping, perform COOL
operation for 30 minutes and pump down
before removing the old air conditioner.
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for new refrigerant.
Note:
*1 Place indoor/outdoor unit connecting wire (A)
and power supply cord (K) at least 3 ft. (1 m)
away from the TV antenna wire.
4-3/8 in.
(110 mm) or
more
3-7/8 in.
(100 mm)
or more
2-1/8 in. (54
mm) or more/
5-1/8 in. (130 mm)
or more for left/left
rear piping (using
spacer)
3/8 in. (10 mm)
or more
Drain piping for outdoor unit
Install the unit horizontally.
Do not use drain socket 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.
Unit: inch Unit: mm
31-1/2
19-11/16
Air inlet
Air inlet
Air outlet
13-9/16
11-1/4
2-3/8
×
13/16 slot
12-12-3/4
1-9/16
800
500
Air inlet
Air outlet
2-10
×
21 slot
344.5
285
150
40
304-325
5-15/16
5.9 ft. to 7.5 ft. (1.8 m
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is recommended
4 in. (100 mm)
or more
14 in. (350 mm)
or more
4 in. (100 mm)
or more
clear *2
*2 4 in. (100 mm) or more when front
and sides of unit are clear
*3 When any 2 sides of left, right and
rear of unit are clear
8 in. (200 mm) *3
or more
Air inlet
Note:
The dimensions indicated in the arrows ( ) above
show the required space to guarantee performance of
the air conditioner. Install the outdoor unit where the
maximum possible space can be provided, considering
later relocation, services, or repairs.
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power usage may fall about 10% at the place where short
cycle is likely occur due to poor ventilation. Installing the
air outlet guide (optional) can improve performances.
If air from the outlet blows against the wall, it may cause
stains on the wall.
Do not take in the outlet air
discharged by other units directly.
15-3/4 in. or more
(400 mm or more)
39-3/8 in. or more
(1000 mm or more)
Connect wires to the appropriate terminals
For future servicing, leave some slack in the connecting wires.
Make ground wire a little longer than
others. (More than 1-9/16 in. [40 mm])
2-1. ATTACHING THE INSTALLATION PLATE
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To prevent installation plate (1) from vibrating, be sure to install the attachment screws
in the holes indicated in the illustration. For added support, additional screws may also
be installed in other holes.
When the indoor unit is to be attached to a concrete wall using recessed bolts, secure
installation plate (1) using 7/16 in. x 13/16 in. · 7/16 in. x 1 in. (11 mm × 20 mm · 11 mm
× 26 mm) oval hole (17-3/4 in. [450 mm] pitch).
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Wall
Outdoor side
2-2. DRILLING
1) Determine where the holes will be located on the wall.
2) Drill a ø 3 in. (75 mm) hole. The outdoor side should be 6/32 to 9/32 in. (5 to 7 mm) lower
than the indoor side.
3) Insert wall hole sleeve (C).
2-3. CONNECTING WIRES FOR INDOOR UNIT
Note:
When the indoor unit is powered from the outdoor unit, depending on local code, a discon-
nect switch needs to be installed to a power supply circuit.
1) Remove the panel assembly. (Refer to 5-1.)
2) Place the upper part of the indoor unit on the installation plate.
3) Remove corner box and electrical cover.
4) Remove display panel, conduit cover and conduit plate.
5) Attach conduit pipe (for rear piping) / elbow joint (for right, left, or downward piping) to
conduit plate with lock nut. The thread of the installed conduit pipe / elbow joint appearing
inside should be less than 3/8 in. (10 mm). (Fig. 1) Elbow joint should appear less than
1-3/16 in. (30 mm) outside. (Fig. 2)
6) Process the end of ground wire (Fig. 3). Connect it to the ground terminal of electrical parts
box.
7) Process the end of indoor/outdoor unit connecting wire (A) (Fig. 3). Attach it to the terminal
block. Be careful not to make mis-wiring. Attach the wire to the terminal block securely so
that its core cannot be seen, and no external force affects the connecting section of the
terminal block.
8) Firmly tighten the terminal screws. After tightening, verify that the wires are tightly fastened.
9) Reinstall conduit plate, conduit cover and display panel.
10) According to the piping direction, remove the shaded part of the left side of box (Fig. 4)
or corner box (Fig. 5). Reinstall electrical cover, corner box and front panel.
Less than 3/8 in.
(10 mm)
Conduit plate
Conduit pipe or
elbow joint
Lock nut
6/32-9/32 in.
(5-7 mm)
Ø 3 in.
(75 mm)
Indoor terminal
block
Fixing
screw
Conduit cover
Lock nut
Conduit plate
Elbow joint
(for right, left, or downward piping)
Elbow joint
(for right, left, or downward piping)
Less than 1-3/16 in.
(30 mm)
Corner box
Remove corner box for
piping on right side of unit
Remove corner box
for piping on bottom
right side of unit
Fig. 1 Fig. 2
Fig. 3 Fig. 4 Fig. 5
Box
Remove box for
piping on left
side of unit
Remove box for
piping on bottom left
side of unit
Level
Installation plate (1)
Plumb
Align the plumb
line with the
mark .
Center of
ø 3 in.
(75 mm) hole
4-3/8 in.
(110 mm)
or more
3-7/8 in.
(100 mm)
or more
Bind the line to the center hole.
2-1/8 in. (54 mm) or more
5-1/8 in. (130 mm) or more for left/
left rear piping (using spacer)
Ceiling
Wall
Attachment screw (2)
* Same for left hole.
Insert
the
scale. *
Align the
scale with
the line. *
5-1/8 in.(130 mm)
Remark:
* A disconnect switch
should be required.
Check the local code.
** Use a ring tongue termi-
nal in order to connect a
ground wire to terminal.
Electrical cover Electrical box
Display panel
Conduit pipe
(for rear piping)
Conduit plate
or
Wall
Grounding
terminal
2. INDOOR UNIT INSTALLATION
Lead wire
19/32 in.
(15 mm)
INDOOR UNIT
Terminal block
208/230 V AC
1phase, 60 Hz
Grounding
terminal**
Disconnect
switch*
OUTDOOR UNIT
Grounding terminal**
Ground
Power supply
208/230 V AC,
1phase 2wires.
60 Hz
Terminal
block
2-4-2. DRAIN PIPING
If the extension drain hose has to pass through a room, be sure to wrap it with insulation
¿HOGVXSSOLHG
The drain hose should point downward for easy drain. (Fig. 1)
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drain hose (I). (Fig. 2)
When connecting the drain hose to a 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
1-31/32 in.
(50 mm)
gap
Downward
slope
Drain
hose
Soft hose
I.D. 19/32 in.
(15 mm)
Drain hose
Hard vinyl chloride pipe
I.D. 1-3/16 in.
(30 mm)
Insert
securely
Different
diameter
joint
27-9/16 in.
(70 cm)
or more
Fig. 1 Fig. 2 Fig. 3
Liquid pipe
Gas pipe
Felt tape (4)
Indoor/outdoor unit
connecting wire (A)
Piping tape (G)
2-4. PIPE FORMING AND DRAIN PIPING
2-4-1. PIPE FORMING
Place the drain hose below the refrigerant piping.
Make sure that the drain hose is not crowded or bent.
Do not pull the hose when applying the tape.
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supplied).
Note:
Make sure not to damage the cover of refrigerant pipe when attaching it back on with
screws.
Left or left-rear piping
Note:
Be sure to reattach the drain hose and the drain cap if the piping is being installed on
left or left-rear of unit, otherwise, water could drip down from the drain hose.
3ODFHWKHUHIULJHUDQWSLSLQJDQGWKHGUDLQKRVHWRJHWKHUWKHQ¿UPO\DSSO\IHOWWDSH
from the end.
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 back 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 back 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 a screwdriver into the hole on the cap and insert the cap fully into the drain
pan.
5) Insert the drain hose fully into the drain pan at the back 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 attach the upper part of indoor unit
onto the installation plate (1). Then, shift the indoor unit completely to the left to make
placing the piping in the back 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) Attach the lower part of the indoor unit into the installation plate (1).
Remove box for piping on
left side of unit.
Drain cap
Drain hose
Drain cap
Drain hose
Fig. 1 Fig. 2
Fig. 3 Fig. 4
Fig. 5
Piping tape (G)
Felt tape (4)
Rear or bottom piping
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(G) from the end.
2) Insert the piping and the drain hose into the wall hole sleeve (C), and attach the upper
part of the indoor unit on the installation plate (1).
3) Check if the indoor unit is attached securely on the installation plate (1) by moving the
unit to left and right.
4) Attach the lower part of the indoor unit into the installation plate (1).
Right piping
Note:
Before performing the following, make sure that wiring is completed, and the conduit
cover is installed. (Refer to 2-3.)
1) Place the refrigerant piping and the drain hose together, shift them to left side of the
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2) Insert the piping and the drain hose into the wall hole sleeve (C), and attach the upper
part of the indoor unit on the installation plate (1).
3) Check if the indoor unit is attached securely on the installation plate (1) by moving the
unit to left and right.
4) Attach the lower part of the indoor unit into the installation plate (1).
To the left
Remove
corner box
for piping on
right side of
unit
Remove corner box for piping
on bottom side of unit
Do not put the drain pipe directly in a drainage ditch where Ammonia or Sulphuric
gas may be generated. The evaporated corrosive gas may return to the indoor side
through drain pipe and this may cause an unpleasant odor and corrosion on Heat
exchanger may occur.
Indoor unit
connection
Outdoor unit
connection
Copper
pipe
Fig. 1
Good
90°
Tilted
No good
Fig. 2
Uneven Burred
Fig. 4
Clutch type
Flaring tool
Wing nut type
Fig. 5
Flare nut
Die Copper pipe
Smooth all around
Even length all around
Inside is shining without any scratches.
Fig. 6
Flare nut Union joint
External thread sideInternal thread side
7LJKWHQWKHÀDUHQXW
with a torque wrench.
Grip the nut on the
union joint with a spanner.
3-1. CONNECTING WIRES FOR OUTDOOR UNIT
1) Remove the service panel.
2) Remove the conduit cover.
3) Attach the conduit connectors to the conduit plate with lock nuts then secure it against unit with
screws.
4) Connect the ground wires of indoor/outdoor unit connecting wire (A) and power supply cord (K)
to the TB support.
5) Loosen the terminal screws, then attach indoor/outdoor unit connecting wire (A) and power sup-
ply cord (K) from the indoor unit correctly to the terminal block. Attach the wires to the terminal
block securely so that the cores cannot be seen, and no external force affects the connecting
section of the terminal block.
6) Firmly tighten the terminal screws. After tightening, verify that the wires are tightly fastened.
7) Install the conduit cover.
8) Install the service panel securely.
3-2. FLARE CONNECTION
1) Cut the copper pipe as straight as possible with a pipe cutter. (Fig. 1, 2)
2) Remove all burrs from the cut section of the pipe, ensuring that precautions are taken to
avoid getting metal shavings into the piping. (Fig. 3)
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4) Flaring work (Fig. 4, 5). Firmly hold copper pipe in the dimension shown in the table. Select
A inch (mm) from the table according to the tool you use.
5) Check
 &RPSDUHWKHÀDUHGZRUNZLWK)LJ
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Lead wire
Make earth wire a little longer than others.
(More than 3-7/8 in. [100 mm])
For future servicing, leave some slack in the
connecting wires.
Power supply cord (K)
L1 L2
3-3. PIPE CONNECTION
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 :KHQIDVWHQHGWRRWLJKWÀDUHQXWPD\HYHQWXDOO\EUHDNDQGFDXVHUHIULJHUDQWOHDNDJH
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.
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frigeration oil on screw threads. Excessive tightening torque will result in damage on the
screw.
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Use tightening torque table above as a guideline for indoor unit side joints, and tighten
XVLQJWZRZUHQFKHV([FHVVLYHWLJKWHQLQJGDPDJHVWKHÀDUHVHFWLRQ
Outdoor unit connection
Connect pipes to stop valve pipe joint of the outdoor unit following the same procedure
detailed in Indoor unit connection.
For tightening, use a torque wrench or spanner.
WARNING
When installing the unit, securely connect the refrigerant pipes before starting
the compressor.
19/32 in.
(15 mm)
Burr Copper pipe
Spare reamer
Pipe cutter
Fig. 3
3-4. INSULATION AND TAPING
1) Cover piping joints with pipe cover.
2) For outdoor unit side, insulate the piping, including valves.
3) Apply piping tape (G) starting from the connection on the outdoor unit.
When piping has to be installed through a ceiling, closet or where the temperature and
KXPLGLW\DUHKLJKXVHDGGLWLRQDO¿HOGVXSSOLHGLQVXODWLRQWRSUHYHQWFRQGHQVDWLRQ
Terminal block
Power supply cord (K)
Indoor/outdoor unit
connecting wire (A)
Service panel
Lock nut
Conduit cover
Conduit plate
Conduit pipe
TB support
to conduit cover
3. OUTDOOR UNIT INSTALLATION
Grounding
terminal
Pipe diam-
eter inch
(mm)
B
inch
(mm)
A inch (mm) Tightening torque
Clutch
type tool
for R410A
Clutch
type tool
for R22
Wing nut
type tool
for R22
ft-lb
(kgf•cm) N•m
ø 1/4 (6.35) 21/32
(17)
0 to 0.02
(0 to 0.5)
0.04 to
0.06
(1.0 to
1.5)
0.06 to
0.08
(1.5 to
2.0)
10 to 13
(140 to 180) 13.7 to 17.7
ø 3/8 (9.52) 7/8
(22)
25 to 30
(350 to 420) 34.3 to 41.2
ø 1/2 (12.7) 1-1/32
(26) 0.08 to
0.10
(2.0 to
2.5)
36 to 42
(500 to 575) 49.0 to 56.4
ø 5/8 (15.88)
1-5/32
(29)
54 to 58
(750 to 800) 73.5 to 78.4
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 (only
MSZ series) operation. Test run will be performed for 30
minutes. If the upper lamp blinks every 0.5 seconds, inspect
the indoor/outdoor unit connecting wire (A). After the test run,
emergency COOL mode (75ºF [24ºC] COOL) 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.
Checking the remote (infrared) signal reception
Press the OFF/ON button on the remote controller (3) and listen for an audible indicator
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.
4-3. AUTO RESTART FUNCTION
This product is equipped with an auto restart function. When the power supply is cut off
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.)
5-1. REMOVING AND INSTALLING THE PANEL
ASSEMBLY
Removal procedure (Fig. 1)
1) Remove the two screws that attach the panel assembly.
5HPRYHWKHSDQHODVVHPEO\%HVXUHWRUHPRYHLWVERWWRPHQG¿UVW
Installation procedure (Fig. 2)
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.
Emergency operation
switch (E.O. SW)
4-1. PURGING PROCEDURES AND LEAK TEST
1) Remove service port caps from stop valves on both sides of refrigerant lines. (The stop
valves are fully closed when shipped.) Leave closed.
2) Connect gauge manifold to ports of stop valves.
Stop valve for
GAS
Stop valve cap
(Torque 15 to
22 ft-lb, 19.6 to
29.4 N•m, 200
WRNJIƒFP
Vacuum pump (or the vacuum
pump with the function to
SUHYHQWWKHEDFNÀRZ
Gauge manifold valve
(for R410A)
Compound pressure gauge
(for R410A)
–14.7 psi [Gauge]
(–0.101 Mpa)
Handle
Low Handle High
Adapter for
preventing the
EDFNÀRZ
Charge hose
(for 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
Charge hose
Body
Close
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 10 to 13 ft
-Ib, 13.7 to 17.7 N•m,
140 to 180 kgf•cm)
3) Evacuate the system to 4000 microns from both service valves. System manifold gauges
must not be used to measure vacuum. A micron gauge must be used at all times. Break
the vacuum with Nitrogen(N2) into the discharge service valve to 0 PSIG.
4) Evacuate the system to 1500 microns. Break the vacuum with Nitrogen(N2) into the
discharge service valve to 0 PSIG.
5) Evacuate the system to 500 microns.
6) Close gauge manifold valves, stop the pump, and conduct a 30 minute rise test.
7) System should hold 500 microns for a minimum of 1 hour.
8) Fully open the valve stem of all stop valves on both sides of gas pipe and liquid pipe
by the hexagonal wrench. If the valve stem hits the stopper, do not turn it any further.
Operating without fully opening lowers the performance and this causes trouble.
9) Refer to 1-3 and charge the prescribed amount of additional 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.
10) Remove gauge manifolds and replace service port caps and tighten.
11) Leak test
Stop valve for LIQUID
Pressure gauge
(for R410A)
4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN
5. RELOCATION AND MAINTENANCE
Fig. 1
Fig. 2
Valve stem (inside)
4-4. EXPLANATION TO THE USER
Using the OPERATING INSTRUCTIONS, explain to the user how to use the air conditioner
WKHUHPRWHFRQWUROOHUUHPRYLQJWKHDLU¿OWHUVSODFLQJRUUHPRYLQJWKHUHPRWHFRQWUROOHUIURP
the remote controller holder, cleaning methods, precautions for operation, etc.)
Recommend that the user read the OPERATING INSTRUCTIONS carefully.
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. If this procedure is not performed,
the unit will automatically begin operation when power supply is resumed.
To the user
After installing the unit, explain to the user about auto restart function.
If auto restart function is unnecessary, it can be deactivated. Consult the service rep-
resentative to deactivate the function. Refer to the service manual for details.
5-3. PUMPING DOWN
When relocating or disposing of the air conditioner, pump down the system following the procedure below so that refrigerant is not 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 can be easily closed fully when the pressure gauge shows 0 psi [Gauge] (0 Mpa).
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 shows (0.1 to 0 psi [Gauge] (0.05 to 0 Mpa)).
6) Stop the emergency COOL operation.
To stop operation, press the E.O. SW several times until all LED lamps turn off. Refer to operating instructions for details.
5-2. REMOVING THE INDOOR UNIT
Remove the bottom of the indoor unit from the installation plate.
When releasing the corner part, release both left and right bottom corner part of
LQGRRUXQLWDQGSXOOLWGRZQZDUGDQGIRUZDUGDVVKRZQLQWKH¿JXUHRQWKHULJKW
Push
Lower
Square hole
If the above method cannot be used
Remove the front panel. Then, insert hexagonal wrenches into the square holes on
WKHOHIWDQGULJKWVLGHVRIWKHXQLWDQGSXVKWKHPXSDVVKRZQLQWKHIROORZLQJ¿JXUH
The bottom of the indoor unit lowers and releases the hooks.
HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU,
TOKYO 100-8310, JAPAN
6. CONNECTING THE INTERFACE/CONNECTOR CABLE TO THE AIR CONDITIONER
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
(1) Remove the panel and the lower
right corner box.
When the refrigeration circuit has a leak, do not execute pump down with the compressor.
When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes. The compressor may burst if air etc. get into it.
WARNING
(4) Hook the connecting cable as shown in
WKH¿JXUH
(2) Open the cover of the indoor
control P.C. board.
(3) Join the connecting cable to
CN105 connector.
(5) Attach the cable clamp provided with an
interface to the thick part of the connect-
ing cable with a screw 4×16 as shown in
WKH¿JXUH
(6) Close the cover of the indoor 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.
Hook
Air conditioner
Indoor control P.C. board CN105
Main body of an interface
Connector
Thin part of the connecting cable. Place this part where customers cannot touch it.
Thick part of the connecting cable
Fix the connecting cable at the prescribed position securely. Incorrect installation
PD\FDXVHHOHFWULFVKRFN¿UHDQGRUPDOIXQFWLRQ
WARNING
CN105
CN24
In case of simultaneous connection of CN24 and CN105
Clamp to CN105 and
¿[LWZLWKDVFUHZ
CN24
Bundle CN105 and CN24 cables with Cable tie.
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Mitsubishi Electric MSZ-GS15NA-U1 Mini Split Heat Pump Systems Manuel utilisateur

Catégorie
Climatiseurs split-system
Taper
Manuel utilisateur