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00_CV_3P161684-3D.fm Page 1 Friday, June 20, 2008 11:38 AM
INSTALLATION MANUAL
English
SYSTEM Inverter Air Conditioners
Español
MODELS
Ceiling mounted cassette type (Round flow model)
FXFQ25PVE(9)
FXFQ32PVE(9)
FXFQ40PVE(9)
FXFQ50PVE(9)
FXFQ63PVE(9)
FXFQ80PVE(9)
FXFQ100PVE(9)
FXFQ125PVE(9)
READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLATION.
KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE.
LEA CUIDADOSAMENTE ESTAS INSTRUCCIONES ANTES DE INSTALAR.
GUARDE ESTE MANUAL EN UN LUGAR A MANO PARA LEER EN CASO DE TENER
ALGUNA DUDA.
LEIA COM ATENÇÃO ESTAS INSTRUÇÕES ANTES DE REALIZAR A INSTALAÇÃO.
MANTENHA ESTE MANUAL AO SEU ALCANCE PARA FUTURAS CONSULTAS.
Portugues
01_EN_3P161684-3D.fm Page 1 Friday, June 20, 2008 1:06 PM
FXFQ25PVE(9)
FXFQ32PVE(9)
FXFQ40PVE(9)
FXFQ50PVE(9)
FXFQ63PVE(9)
FXFQ80PVE(9)
FXFQ100PVE(9)
FXFQ125PVE(9)
VRV SYSTEM Inverter
Air Conditioners
Installation manual
CONTENTS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
SAFETY PRECAUTIONS .............................................................................................. 1
BEFORE INSTALLATION .............................................................................................. 3
SELECTING INSTALLATION SITE ............................................................................... 5
PREPARATIONS BEFORE INSTALLATION................................................................. 7
INDOOR UNIT INSTALLATION ..................................................................................... 8
REFRIGERANT PIPING WORK .................................................................................. 10
DRAIN PIPING WORK................................................................................................. 12
ELECTRIC WIRING WORK ......................................................................................... 15
WIRING EXAMPLE AND HOW TO SET THE REMOTE CONTROLLER ................... 16
INSTALLATION OF THE DECORATION PANEL .......................................................... 22
FIELD SETTING........................................................................................................... 22
TEST OPERATION ...................................................................................................... 24
1. SAFETY PRECAUTIONS
Please read these “SAFETY PRECAUTIONS” carefully before installing air conditioning unit and be sure to
install it correctly. After completing installation, conduct a trial operation to check for faults and explain to the
customer how to operate the air conditioner and take care of it with the aid of the operation manual. Ask the
customer to store the installation manual along with the operation manual for future reference.
This air conditioner comes under the term “appliances not accessible to the general public”.
This unit is a class A product. In a domestic environment this product may cause radio interference in which
case the user may be required to take adequate measures.
Meaning of WARNING and CAUTION notices.
WARNING .........Failure to follow these instructions properly may result in personal injury or loss of life.
CAUTION ..........Failure to observe these instructions properly may result in property damage or personal injury, which may be serious depending on the circumstances.
WARNING
• Ask your dealer or qualified personnel to carry out installation work.
Do not attempt to install the air conditioner yourself. Improper installation may result in water leakage,
electric shocks or fire.
• Install the air conditioner in accordance with the instructions in this installation manual.
Improper installation may result in water leakage, electric shocks or fire.
• Consult your local dealer regarding what to do in case of refrigerant leakage.
When the air conditioner is to be installed in a small room, it is necessary to take proper measures so that
the amount of any leaked refrigerant does not exceed the concentration limit in the event of a leakage. Otherwise, this may lead to an accident due to oxygen depletion.
1
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01_EN_3P161684-3D.fm Page 2 Friday, June 20, 2008 1:06 PM
• Be sure to use only the specified accessories and parts for installation work.
Failure to use the specified parts may result in the unit falling, water leakage, electric shocks or fire.
• Install the air conditioner on a foundation strong enough to withstand the weight of the unit.
A foundation of insufficient strength may result in the equipment falling and causing injury.
• Carry out the specified installation work after taking into account strong winds, typhoons or earthquakes.
Failure to do so during installation work may result in the unit falling and causing accidents.
• Make sure that a separate power supply circuit is provided for this unit and that all electrical work is carried
out by qualified personnel according to local laws and regulations and this installation manual.
An insufficient power supply capacity or improper electrical construction may lead to electric shocks or fire.
• Make sure that all wiring is secured, the specified wires are used, and that there is no strain on the terminal
connections or wires.
Improper connections or securing of wires may result in abnormal heat build-up or fire.
• When wiring the power supply and connecting the remote controller wiring and transmission wiring, position
the wires so that the terminal box lid can be securely fastened.
Improper positioning of the terminal box lid may result in electric shocks, fire or the terminals overheating.
• If refrigerant gas leaks during installation, ventilate the area immediately.
Toxic gas may be produced if the refrigerant comes into contact with fire.
• After completing installation, check for refrigerant gas leakage.
Toxic gas may be produced if the refrigerant gas leaks into the room and comes into contact with a source
of fire, such as a fan heater, stove or cooker.
• Be sure to switch off the unit before touching any electrical parts.
• Do not directly touch refrigerant that has leaked from refrigerant pipes or other areas, as there is a danger
of frostbite.
• Be sure to earth the air conditioner.
Do not earth the unit to a utility pipe, lightning conductor or telephone earth lead.
Imperfect earthing may result in electric shocks or fire.
A high surge current from lightning or other sources may cause damage to the air conditioner.
• Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in electric shocks or fire.
•
•
•
•
CAUTION
While following the instructions in this installation manual, install drain piping to ensure proper drainage and
insulate piping to prevent condensation.
Improper drain piping may result in indoor water leakage and property damage.
Install the indoor and outdoor units, power cord and connecting wires at least 1 meter away from televisions
or radios to prevent picture interference and noise.
(Depending on the incoming signal strength, a distance of 1 meter may not be sufficient to eliminate noise.)
Remote controller (wireless kit) transmitting distance can be shorter than expected in rooms with electronic
fluorescent lamps (inverter or rapid start types).
Install the indoor unit as far away from fluorescent lamps as possible.
Do not install the air conditioner in the following locations:
1. Where there is a high concentration of mineral oil spray or vapour (e.g. a kitchen).
Plastic parts will deteriorate, parts may fall off and water leakage could result.
2. Where corrosive gas, such as sulphurous acid gas, is produced.
Corroding of copper pipes or soldered parts may result in refrigerant leakage.
3. Near machinery emitting electromagnetic radiation.
Electromagnetic radiation may disturb the operation of the control system and result in a malfunction of
the unit.
4. Where flammable gas may leak, where there is carbon fibre or ignitable dust suspensions in the air, or
where volatile flammables such as paint thinner or gasoline are handled.
Operating the unit in such conditions may result in fire.
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2. BEFORE INSTALLATION
Do not exert pressure on the resin parts when opening the unit or when moving it after opening
Be sure to check the type of R410A refrigerant to be used before doing any work. (Using an incorrect
refrigerant will prevent normal operation of the unit.)
• When opening the unit or moving it after opening, be sure to lift it by holding on to the lifting lugs without
exerting any pressure on other parts, especially, drain piping, and other resin parts.
• Decide upon a line of transport.
• Leave the unit inside its packaging while moving, until reaching the installation site. Use a sling of soft material, where unpacking is unavoidable or protective plates together with a rope when lifting, to avoid damage
or scratches to the unit.
• Refer to the installation manual of the outdoor unit for items not described in this manual.
• Do not dispose of any parts necessary for installation until the installation is complete.
1. PRECAUTIONS
•
•
•
•
Be sure to read this manual before installing the indoor unit.
When selecting installation site, refer to the paper pattern.
This unit is suitable for installation in a household, commercial and light industrial environment.
Do not install or operate the unit in rooms mentioned below.
• Laden with mineral oil, or filled with oil vapor or spray like in kitchens. (Plastic parts may deteriorate.)
• Where corrosive gas like sulfurous gas exists. (Copper tubing and brazed spots may corrode.)
• Where volatile flammable gas like thinner or gasoline is used.
• Where machines can generate electromagnetic waves. (Control system may malfunction.)
• Where the air contains high levels of salt such as that near the ocean and where voltage fluctuates
greatly such as that in factories. Also in vehicles or vessels.
2. ACCESSORIES
Check the following accessories are included with your unit.
Name
(1) Drain hose
(2) Metal clamp
Quantity
1 pc.
1 pc.
(3) Washer for
hanger
bracket
8 pcs.
(4) Clamp
(5) Paper pattern for
installation
(6) Screw (M4)
6 pcs.
1 pc.
4 pcs.
Also used as pack- For paper pattern
for installation
ing material
Shape
Name
Quantity
(7) Washer
fixing plate
4 pcs.
Insulation for
fitting
1 each
Sealing pad
1 each
1 pc.
Installation guide
1 pc.
1 pc.
(Other)
(10) Large
(8) for gas
pipe
(13) Small
(11) Medium-1
Shape
(14)
(15)
• Installation
manual
• Operation
manual
(9) for liquid
pipe
(12) Medium-2
3
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3. OPTIONAL ACCESSORIES
• The optional decoration panel and remote controller are required for this indoor unit. (Refer to Table 1, 2)
(However, the remote controller is not required for the slave unit of a simultaneous operation system.)
Table 1
Unit model
FXFQ25 · 32 · 40 · 50 · 63 · 80 · 100 · 125PVE(9)
Optional decoration panel
BYCP125K-W1
Color : Fresh white
• These are two types of remote controllers: wired and wireless. Select a remote controller from Table 2
according to customer request and install in an appropriate place.
Table 2
Remote controller
Wired type
Wireless type (Heat pump type/Cooling only type)
BRC1C62
BRC7F634F/BRC7F635F
NOTE
• If you wish to use a remote controller that is not listed in “Table 2” on page 4, select a suitable remote controller after consulting catalogs and technical materials.
FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE DURING CONSTRUCTION AND
CHECK AFTER INSTALLATION IS FINISHED.
1. Items to be checked after completion of work
Items to be checked
Are the indoor unit and outdoor unit fixed
firmly?
Is the outdoor unit fully installed?
Is the gas leak test finished?
Is the unit fully insulated?
Does drainage flow smoothly?
Does the power supply voltage correspond
to that shown on the name plate?
Are wiring and piping correct?
Is the unit safely grounded?
Is wiring size according to specifications?
Is something blocking the air outlet or inlet
of either the indoor or outdoor units?
Are refrigerant piping length and additional
refrigerant charge noted down?
If not properly done, what is likely to occur
Check
The unit may drop, vibrate or make noise.
The unit may malfunction or the components burn out.
It may result in insufficient cooling.
Condensate water may drip.
Condensate water may drip.
The unit may malfunction or the components burn out.
The unit may malfunction or the components burn out.
It may result in electric shock.
The unit may malfunction or the components burn out.
It may result in insufficient cooling.
The refrigerant charge in the system is not
clear.
2. Items to be checked at time of delivery
* Also review the “1. SAFETY PRECAUTIONS”
Items to be checked
Check
Are the terminal box lid, air filter, suction grille attached?
Did you explain about operations while showing the instruction manual to your customer?
Did you hand the instruction manual over to your customer?
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Points for explanation about operations
The items with
WARNING and
CAUTION marks in the instruction manual are the items pertaining to possibilities for bodily injury and material damage in addition to the general usage of
the product. Accordingly, it is necessary that you make a full explanation about the described contents and also ask your customers to read the instruction manual.
4. NOTE TO THE INSTALLER
Be sure to instruct customers how to properly operate the unit (especially cleaning filters, operating different
functions, and adjusting the temperature) by having them carry out operations themselves while looking at the
manual.
3. SELECTING INSTALLATION SITE
〈Hold the unit by the 4 lifting lugs when opening the box and moving it, and do not exert pressure on to any
other part piping (refrigerant, drain, etc.) or plastic parts.
If the temperature or humidity inside the ceiling might rise above 30°C or RH 80%, respectively, use the highhumidity kit (sold separately) or add extra insulation to the main unit body.
Use glass wool or polyethylene foam as insulation and make sure it is at least 10mm thick and fits inside the
ceiling opening.〉
The direction this product blows can be selected. However, a separately sold shut-off material kit is
needed in order to make the unit blow in two, three, or four (corner shut-off) directions.
(1) Select an installation location with the customer’s approval which matches the following conditions.
• A location from which cool (warm) air will reach the whole room.
• A location with no objects blocking the air passage.
• A location where drainage can be done with no problem.
• A location strong enough to support the weight of the indoor unit.
• Locations where the wall is not significantly tilted.
• A location which leaves enough room for installation and service work.
• A location where there is no risk of flammable gas leaking.
• A location where the length of the indoor-outdoor piping is no longer than the tolerated length (see the
installation manual that came with the outdoor unit for details).
[Space required for installation]
*≥1500
H
*≥1500
Air
discharge
At least 1800mm
from the floor.
Air Air
inlet discharge
≥1500
≥1500
*≥1500
Floor surface
Fig. 1
Model
FXFQ25 · 32 · 40 · 50 · 63 · 80PVE(9)
FXFQ100 · 125PVE(9)
5
*≥1500
Fig. 2
H (mm)
256
298
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CAUTION
• The indoor and outdoor units and the power supply wiring and remote controller cord must be installed
at least 1m away from any televisions or radios. This is to prevent interference with picture and sound
reception. (Interference may occur even at 1m away depending on the reception quality.)
• If installing the wireless kit, the distance of the signal sent from the remote controller might be shorter if
there are fluorescent lights which are electrically started (such as with inverters, rapid starters, etc.) in
the room. The indoor unit should be installed as far away from fluorescent lights as possible.
(2) Ceiling height
This product can be installed in ceilings up to 3.5m high (4.2m high for the 100 and 125).
If the ceiling height is 2.7m (3.2m for the 100 and 125) or more, field settings will have to be made with the
remote controller. See “11. FIELD SETTING” for details.
(3) Air direction
The air direction shown in Fig. 3 is an example.
Select the appropriate number of directions according to the shape of the room and the location of the unit.
(Field settings have to be made using the remote controller and the outlet vents have to be shut off if two,
three, or four (corner shut-off) directions are selected. See the shut-off materials (sold separately) installation manual for details.)
(4) Use eyebolts for installation. Check if the location for the installation is strong enough to support the weight
of the unit, reinforce it if necessary, and install using eyebolts. (The spacing of the installation is shown on
the “paper pattern for installation (5)”.)
All-round air
Pipes
Pipes
Pipes
Pipes
[Air direction]
Four air direction Three air direction Two air direction
Fig. 3
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4. PREPARATIONS BEFORE INSTALLATION
Refrigerant
piping
Hanger
bracket
Suspension
bolt (×4)
False
ceiling
710(Suspension bolt pitch)
840 (Indoor unit)
860 – 910 (Ceiling opening)
950 (Decoration panel)
View as seen from A
Fig. 5
125 – 130
860 – 910 (Ceiling opening)
840 (Indoor unit)
780 (Suspension bolt pitch)
950 (Decoration panel)
(1) Relation of ceiling opening to unit and suspension bolt position.
A
Fig. 4
910
(Dimension inside frame)
840
䡵 Installation is possible when ceiling opening dimensions is as follows
• When installing the unit within the frame for fixing false ceiling.
860
(Opening dimension inside
the flame for ceiling)
Frame
False
ceiling
≥20
840
910
(Dimension inside frame)
≥20
860 – *910
(Ceiling opening dimension) (Ceiling-panel
overlapping dimension)
Fig. 7
Fig. 6
NOTE
• Installation is possible with a ceiling dimension of 910mm (marked with *). However, to achieve a ceilingpanel overlapping dimension of 20mm, the spacing between the ceiling and the unit should be 35mm or
less. If the spacing between ceiling and the unit is over 35mm, attach ceiling material to
part or recover
the ceiling.
Ceiling material
≥ 35
≥ 35
Fig. 8
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(2) Make the ceiling opening needed for installation where applicable. (For existing ceilings)
• Refer to the paper pattern for installation (5) for ceiling opening dimensions.
• Create the ceiling opening required for installation. From the side of the opening to the casing outlet,
implement the refrigerant and drain piping and wiring for remote controller (unnecessary for wireless
type) and indoor-outdoor unit casing outlet. Refer to “6. REFRIGERANT PIPING WORK”, “7. DRAIN
PIPING WORK” and “8. ELECTRIC WIRING WORK”.
• After making an opening in the ceiling, it may be necessary to reinforce ceiling beams to keep the ceiling
level and to prevent it from vibrating. Consult the builder for details.
<installation example>
Ceiling slab
Anchor
Long nut or turn-buckle
Suspension bolt
50 – 100
(3) Install the suspension bolts.
(Use either a M8~M10 size bolt)
Use a hole-in anchor for existing ceilings, and
a sunken insert, sunken anchor or other field
supplied parts for new ceilings to reinforce
the ceiling to bear the weight of the unit.
Adjust clearance (50 – 100mm) from the
ceiling before proceeding further.
False ceiling
Fig. 9
NOTE
• All the above parts are field supplied.
5. INDOOR UNIT INSTALLATION
Installing optional accessories (except for the decoration panel) before installing the indoor unit is
easier. However, for existing ceilings, install fresh air inlet component kit and branch duct before
installing the unit.
As for the parts to be used for installation work, be sure to use the provided accessories and specified parts
designated by our company.
(1) For new ceilings
(1-1)Install the indoor unit temporarily.
• Attach the hanger bracket to the suspension bolt. Be sure to fix it securely by using a nut and
washer (3) from the upper and lower sides of the hanger bracket.
The washer fixing plate (7) will prevent the washer from falling.
Field supply
Washer (3) (accessory)
Insert
Hanger bracket
Tighten
(double nuts)
[Securing the hanger bracket]
Fig. 10
Washer fixing plate (7)
(accessory)
[Securing the washer]
Fig. 11
(1-2)Refer to the paper pattern for installation (5) for ceiling opening dimension.
Consult the builder or carpenter for details.
• The center of the ceiling opening is indicated on the paper pattern for installation.
The center of the unit is indicated on the triangular mark to the unit bottom and on the paper pattern for
installation.
• Fix the paper pattern to the unit with screws (6) (×4).
• Ceiling height is shown on the side of the paper pattern for installation (5). Adjust the height of the unit
according to this indication.
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Please perform one of the following, as the shape of the paper pattern for installation differs according to the model.
Center of
ceiling opening
Center of main unit
Center mark of
main unit
Paper pattern for
installation (5)
Screw (6)
(accessory)
Screw (6)
(accessory)
Fig. 12
[Installation of paper pattern for installation]
<Ceiling work>
(1-3)Adjust the unit to the right position for installation.
(Refer to “4. PREPARATIONS BEFORE INSTALLATION-(1)”.)
• Using the Installation guide (15) allows you to check the positions from the underside of the unit to the
lower ceiling surface.
Apply the short
side of the
cut-out section.
Lower ceiling
surface
Underside of
the unit
Installation guide (15)
(accessory)
(1-4)Check the unit is horizontally level.
• The indoor unit is equipped with a built-in drain pump and float
switch. Verify that it is level by using a level or a water-filled
vinyl tube.
CAUTION
If the unit is tilted against condensate flow, the float switch may
malfunction and cause water to drip.
(1-5)Remove the washer fixing plate (7) used for preventing the
washer from falling and tighten the upper nut.
(1-6)Remove the paper pattern for installation (5).
Level
Vinyl tube
[Maintaining horizontality]
Fig. 13
(2) For existing ceilings
(2-1)Install the indoor unit temporarily.
Perform step (1-1) in (1) For new ceilings.
(2-2)Adjust the height and position of the unit.
(Refer to “4. PREPARATIONS BEFORE INSTALLATION-(1)” and (1-3) in (1) For new ceilings.)
(2-3)Perform steps (1-4), (1-5) in (1) For new ceilings.
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6. REFRIGERANT PIPING WORK
〈For refrigerant piping of outdoor units, see the installation manual attached to the outdoor unit.〉
〈Execute heat insulation work completely on both sides of the gas piping and the liquid piping. Otherwise, a
water leakage can result sometimes.〉
(When using a heat pump, the temperature of the gas piping can reach up to approximately 120°C, so use
insulation which is sufficiently resistant.)
〈Also, in cases where the temperature and humidity of the refrigerant piping sections might exceed 30°C or
RH80%, reinforce the refrigerant insulation. (20mm or thicker) Condensate may form on the surface of the
insulating material.〉
〈Be sure to check the type of R410A refrigerant to be used before doing any work. (Using an incorrect refrigerant will prevent normal operation of the unit.)〉
•
•
•
•
CAUTION
Use a pipe cutter and flare suitable for the type of refrigerant.
Apply ester oil or ether oil around the flare section before connecting.
To prevent dust, moisture or other foreign matter from infiltrating the tube, either pinch the end or cover
it with tape.
Do not allow anything other than the designated refrigerant to get mixed into the refrigerant circuit, such
as air, etc. If any refrigerant gas leaks while working on the unit, ventilate the room thoroughly right away.
• Do not mix air or other gas with the specified refrigerant in the refrigeration cycle.
• Ventilate the room if refrigerant gas leaks during the work.
• The outdoor unit is charged with refrigerant.
• Be sure to use both a spanner and torque wrench together, as shown in the
drawing, when connecting or disconnecting pipes to/from the unit.
(Refer to Fig. 14)
• Refer to “Table 3” for the dimensions of flare nut spaces.
Torque wrench
Spanner
Pipe union
Flare nut
Fig. 14
• When connecting the flare nut, apply ester oil or ether oil to the flare
section (both inside and outside), and spin 3-4 times before screwing in. (Refer to Fig. 15)
• Keep all the screw mounting resin parts (e.g., piping presser
plates) away from oil.
If oil adheres, the strength of the screw mounting resin parts may
drop.
Coat here with ester or ether oil.
Fig. 15
CAUTION
Over-tightening the flare nut may break it and/or cause the
refrigerant to leak.
NOTE
• Use the flare nut included with the unit main body.
Table 3
Tightening torque
Flare dimensions
A (mm)
φ 6.4 (1/4”)
14.2 – 17.2N·m
8.7 – 9.1
φ 9.5 (3/8”)
32.7 – 39.9N·m
12.8 – 13.2
φ 12.7 (1/2”)
49.5 – 60.3N·m
16.2 – 16.6
φ 15.9 (5/8”)
61.8 – 75.4N·m
19.3 – 19.7
Flare
0
45 Ⳳ2
R0.4-0.8
A
0
90 Ⳳ2
0
0
Pipe size
• Refer to “Table 3” to determine the proper tightening torque.
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Not recommendable but in case of emergency
You must use a torque wrench but if you are obliged to install the unit without a torque wrench, you may
follow the installation method mentioned below.
When you keep on tightening the flare nut with a spanner, there is a point where the tightening torque
suddenly increases. From that position, further tighten the flare nut the angle shown below:
Pipe size
φ 6.4 (1/4”)
φ 9.5 (3/8”)
φ 12.7 (1/2”)
φ 15.9 (5/8”)
Further tightening angle
60 to 90 degrees
60 to 90 degrees
30 to 60 degrees
30 to 60 degrees
Recommended arm length of tool
Approx. 150mm
Approx. 200mm
Approx. 250mm
Approx. 300mm
After the work is finished, make sure to check that there is no gas leak.
• Make absolutely sure to execute heat insulation works on the pipe-connecting section after checking gas
leakage by thoroughly studying the following figure and using the attached heat insulating materials for
fitting (8) and (9). (Fasten both ends with the clamps (4).) (Refer to Fig. 16)
• Wrap the sealing pad (11) only around the insulation for the joints on the gas piping side. (Refer to Fig. 16)
Gas Piping Insulation Procedure
Insulation for fitting (8)
(accessory)
Flare nut connection
Piping insulation
material (main unit)
Wrap over from the
base of the unit to
the top of the flare
nut connection.
Attach to base
Turn seams up
Main unit
Piping insulation
material
(Field supply)
Clamp (4) (accessory)
Tighten the part other
than the piping insulation
material.
Sealing pad
medium-1 (11)
(accessory)
Liquid Piping Insulation Procedure
Insulation for fitting (9)
(accessory)
Flare nut connection
Turn seams up
Piping insulation
material (main unit)
Wrap the
insulator around
the part from the
root.
Attach to base
Liquid piping
Main unit
Piping insulation
material
(Field supply)
Clamp (4) (accessory)
Tighten the part other
than the piping insulation
material.
Gas piping
Sealing pad
medium-2 (12)
(accessory)
Screw mounting part
of piping presser plate
(2 locations)
Fig. 16
CAUTION
For local insulation, be sure to insulate local piping all the way into the pipe connections inside the machine.
Exposed piping may cause condensation or burns on contact.
CAUTION
CAUTION TO BE TAKEN WHEN BRAZING REFRIGERANT PIPING
“Do not use flux when brazing refrigerant piping. Therefore, use the phosphor copper brazing filler metal
(BCuP-2: JIS Z 3264/B-Cu93P-710/795: ISO 3677) which does not require flux.”
(Flux has extremely harmful influence on refrigerant piping systems. For instance, if the chlorine based flux is
used, it will cause pipe corrosion or, in particular, if the flux contains fluorine, it will damage the refrigerant oil.)
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• Before brazing local refrigerant piping, nitrogen gas shall be blown through the piping to expel air from the piping.
If you brazing is done without nitrogen gas blowing, a large amount of oxide film develops inside the piping, and
could cause system malfunction.
• When brazing the refrigerant piping, only begin brazing after having carried out nitrogen substitution or
while inserting nitrogen into the refrigerant piping. Once this is done, connect the indoor unit with a flared
or a flanged connection.
• Nitrogen should be set to 0.02MPa with a pressure-reducing valve if brazing while inserting nitrogen into
the piping. (Refer to Fig. 17)
Pressure-reducing valve
Refrigerant piping
Part to be
brazed
Taping
Hands valve
Nitrogen
Nitrogen
Fig. 17
7. DRAIN PIPING WORK
(1) Rig drain piping
• As for drain work, perform piping in such a manner that water can be drained properly.
• Employ a pipe with either the same diameter or with the diameter larger (excluding the raising section) than
that of the connecting pipe (PVC pipe, nominal diameter 25mm, outside diameter 32mm).
• Keep the drain pipe short and sloping downwards at a gradient of at least 1/100 to prevent air pockets from
forming.
• If the drain pipe cannot be sufficiently set on a slope, execute the drain raising piping.
• To keep the drain pipe from sagging, space hanging wires every 1 to 1.5m.
Hanger bracket
1–1.5m 1/100 gradient or more
GOOD
WRONG
Fig. 18-1
Fig. 18-2
CAUTION
Water pooling in the drainage piping can cause the drain to clog.
• Use the attached drain hose (1) and Metal clamp (2).
• Insert the drain hose into the drain socket up to the base, and tighten the Metal clamp securely within the
portion of a white tape of the hose-inserted tip. Tighten the Metal clamp until the screw head is less than
4mm from the hose.
• Wrap the attached sealing pad (10) over the Metal clamp and drain hose to insulate.
• Make sure that heat insulation work is executed on the following 2 spots to prevent any possible water leakage due to dew condensation.
• Indoor drain pipe
• Drain socket
Metal
clamp (2)
Metal
clamp (2)
(accessory)
Large sealing pad (10)
(accessory)
Drain hose (1)
Tape (White)
Fig. 19
English
Fig. 20
≥ 4mm
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01_EN_3P161684-3D.fm Page 13 Friday, June 20, 2008 1:06 PM
<PRECAUTIONS FOR DRAIN RAISING PIPING>
• Install the drain raising pipes at a height of less than 675mm.
The drain pump of this unit has a high delivery flow rate. Therefore, the higher the drain raising height is, the
lower the sound of draining will be. For this reason, a minimum drain raising height of 300mm is recommended.
• Install the drain raising pipes at a right angle to the indoor unit and no more than 300mm from the unit.
To prevent air bubbles in the
drain hose part, keep it level or
slightly tilted up. Any bubbles in
the hose might cause the unit
to make noise due to backflow
when the drain pump stops.
Drain raising pipe
≥ 850
Level or
tilted
slightly up
Hanger bracket
175
Ceiling slab
≥ 300mm
1 – 1.5m
Drain hose (1)
(accessory)
Adjustable
(≥ 675)
Raising section
Drain hose (accessory) (1)
Metal clamp
(accessory) (2)
Fig. 21
NOTE
• To ensure no excessive pressure is applied to the included drain hose (1), do not bend or twist when installing. (This may cause leakage.)
• If converging multiple drain pipes, install according to the procedure shown below.
0 – 675mm
Central drain pipe
The drain pipe should have a downward
slope of at least 1/100 to prevent
air pockets from forming.
Fig. 22
Water accumulating in the drain
piping can cause the drain to clog.
Select converging drain pipes whose gauge is suitable for the operating capacity of the unit.
(2) After piping work is finished, check if drainage flows smoothly.
WHEN ELECTRIC WIRING WORK IS FINISHED
• Add approximately 1000cc of water slowly from the air outlet and check drainage flow.
• Check drainage flow during COOL running, explained under ‘‘12. TEST OPERATION’’.
• Refer to the figure on the following after checking the draining of water, and mount the thermal insulation
material for drainage (14) and thermal insulate the drain socket.
Thermal insulation
material for drainage (14)
(accessory)
Thermal insulation
material for drainage (14)
(accessory)
Sealing pad (Large) (10)
Be sure to lay the sealing
material on (14).
Make sure that there
is no clearance.
WHEN ELECTRIC WIRING WORK IS NOT FINISHED
CAUTION
• Electrical wiring work should be done by a certified electrician.
• If someone who does not have the proper qualifications performs the work, perform the following after the
test run is complete.
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01_EN_3P161684-3D.fm Page 14 Friday, June 20, 2008 1:06 PM
• Remove the terminal box lid. Connect the single phase power supply (SINGLE PHASE 50Hz 240V) to connections No.1 and No.2 on the terminal block for wiring the units. Do not connect to No.3 of the terminal
block for wiring the units. (The drain pump will not operate.) Connect the ground wire firmly. When carrying
out wiring work around the terminal box, make sure none of the connectors come undone. Be sure to attach
the terminal box lid before turning on the power.
• Put approximately 1000cc of water into the drain pan through the blow-off mouth on the left-hand side of the
drain socket. Make sure not to pour water over the drain pump or any electric parts including those of the
drain pump.
• When the power is turned on, the drain pump will operate and you can check the draining of water through
the transparent part of the drain socket. (The drain pump will stop automatically in 10 minutes.)
After checking the draining of water, mount the thermal insulation material for drainage (14) and thermal
insulate the drain socket.
• After confirming drainage (Fig.23, Fig.24), turn off the power and remove the power supply.
• Attach the terminal box lid as before.
Drain sockets
At least
100mm
(Check the
drainage now.)
Plastic watering can
(Tube should be
about 100mm long.)
Drain pump
location
Service drain outlet (with rubber plug)
(Use this outlet to drain water from
the drain pan.)
<Adding water through air discharge outlet>
[Method of adding water]
Fig. 23
Inter-unit wiring
terminal block
Power supply
single phase 240V
Ground
S R
wire
Ground
terminal
Terminal box lid
Fig. 24
English
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01_EN_3P161684-3D.fm Page 15 Friday, June 20, 2008 1:06 PM
CAUTION
Drain piping connections
Do not connect the drain piping directly to sewage pipes that smell of ammonia. The ammonia in the sewage might enter the indoor unit through the drain pipes and corrode the heat exchanger.
8. ELECTRIC WIRING WORK
8-1 General instructions
•
•
•
•
•
•
•
All field supplied parts and materials and electric works must conform to local codes.
Use copper wire only.
For electric wiring work, refer to also “WIRING DIAGRAM” attached to the unit body.
For remote controller wiring details, refer to the installation manual attached to the remote controller.
All wiring must be performed by an authorized electrician.
A circuit breaker capable of shutting down power supply to the entire system must be installed.
Refer to the installation manual attached to the outdoor unit for the size of power supply electric wire connected to the outdoor unit, the capacity of the circuit breaker and switch, and wiring instructions.
• Be sure to ground the air conditioner.
• Do not connect the ground wire to gas pipes, plumbing pipes, lightning rods, or telephone ground wires.
• Gas pipes: might cause explosions or fire if gas leaks.
• Plumbing: no grounding effect if hard vinyl piping is used.
• Telephone ground wires or lightning rods: might cause abnormally high electric potential in the ground
during lighting storms.
8-2 Electrical characteristics
Power
supply
Units
Model
FXFQ25PVE(9)
FXFQ32PVE(9)
FXFQ40PVE(9)
FXFQ50PVE(9)
FXFQ63PVE(9)
FXFQ80PVE(9)
FXFQ100PVE(9)
FXFQ125PVE(9)
FXFQ25PVE(9)
FXFQ32PVE(9)
FXFQ40PVE(9)
FXFQ50PVE(9)
FXFQ63PVE(9)
FXFQ80PVE(9)
FXFQ100PVE(9)
FXFQ125PVE(9)
Hz
Volts
Voltage range
50
220-240
Max. 264
Min. 198
60
220
Max. 242
Min. 198
MCA: Min. Circuit Amps (A)
kW: Fan Motor Rated Output (kW)
15
MCA
0.3
0.3
0.3
0.3
0.4
0.5
1.3
1.5
0.3
0.3
0.3
0.3
0.4
0.5
1.3
1.5
Fan motor
MFA
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
kW
0.056
0.056
0.056
0.056
0.056
0.056
0.120
0.120
0.056
0.056
0.056
0.056
0.056
0.056
0.120
0.120
FLA
0.2
0.2
0.2
0.2
0.3
0.4
1.0
1.2
0.2
0.2
0.2
0.2
0.3
0.4
1.0
1.2
MFA: Max. Fuse Amps (A)
FLA: Full Load Amps (A)
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01_EN_3P161684-3D.fm Page 16 Friday, June 20, 2008 1:06 PM
8-3 Specifications for field supplied fuses and wire
Remote controller wiring
Transmission wiring
Power supply wiring
Model
FXFQ25·32·40·50PVE(9)
FXFQ63PVE(9)
FXFQ80·100PVE(9)
FXFQ125PVE(9)
Field fuses
15A
Wire
Size
Wire size must
H05VV-U3G comply with local
codes.
Wire
Size
Sheathed wire
2
0.75 - 1.25 mm
(2 wire)
Allowable length of transmission wirings and remote controller wiring are as follows.
(1) Outdoor unit - Indoor unit:
Max. 1000m (Total wiring length: 2000m)
(2) Indoor unit - Remote controller
Max. 500m
NOTE
1. Shows only in case of protected pipes. Use H07RN-F in case of no protection.
2. Vinyl cord with sheath or cable (Insulated thickness : 1mm or more)
9. WIRING EXAMPLE AND HOW TO SET THE REMOTE CONTROLLER
9-1 How to connect wirings
Connection of wiring between units, ground wire and for the remote controller cord (Refer to Fig. 25)
• Wiring the units and ground wire
Remove the terminal box lid and connect wires of matching number to the terminal block for wiring the units
(3 P) inside. And connect the ground wire to the ground terminal. In doing this, pull the wires inside through
the hole and fix the wires securely with the included clamp (4) (2 points).
• Remote controller cords (not neccessary for slave unit of simultaneous operation system)
Remove the terminal box lid and pull the wires inside through the hole and connect to the terminal block for
remote controller (6 P). (no polarity) Securely fix the remote controller cord with the included clamp (4) (2
points).
• After connection, attach sealing pad (13).
• Be sure to attach it to prevent the infiltration of water from the outside.
[ PRECAUTIONS ]
1. Use round crimp-style terminals for connecting wires to the power supply terminal block.
If unavailable, observe the following points when wiring.
• Do not connect wires of different gauge to the same power supply terminal.
(Looseness in the connection may cause overheating.)
• Use the specified electric wire. Connect the wire securely to the terminal. Lock the wire down without
applying excessive force to the terminal. (Tightening torque: 131N·cm ±10 %)
Attach insulation sleeve
Round crimp-style terminal
Electric wire
Fig. 25
English
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2. Tightening torque for the terminal screws.
• Use the correct screwdriver for tightening the terminal screws. If the blade of screwdriver is too small, the
head of the screw might be damaged, and the screw will not be properly tightened.
• If the terminal screws are tightened too hard, screws might be damaged.
• Refer to the table below for the tightening torque of the terminal screws.
Terminal
Terminal block for remote controller (6P)
Power supply terminal block (3P)
Ground terminal
Size
M3.5
M4
M4
Tightening torque
0.79 – 0.97N·m
1.18 – 1.44N·m
1.44 – 1.94N·m
When none are available, follow the instructions below.
3. Do not connect wires of different gauge to the same grounding terminal.
Connect wires of the
same gauge to both
side.
Do not connect wires
of the same gauge to
one side.
Do not connect wires
of different gauges.
Fig. 26
Looseness in the connection may deteriorate protection.
4. Outside of the unit, keep transmission wiring at least 50mm away from power supply wiring. The equipment may malfunction if subjected to electrical (external) noise.
5. For remote controller wiring, refer to the “INSTALLATION MANUAL OF REMOTE CONTROLLER.”
attached to the remote controller.
6. Never connect power supply wiring to the terminal block for remote controller. A mistake of the
sort could damage the entire system.
7. Use only specified wire and tightly connect wires to terminals. Be careful wires do not place external stress
on terminals. Keep wiring in neat order and so as not to obstruct other equipment such as popping open
the terminal box lid. Make sure the lid closes tight. Incomplete connections could result in overheating, and
in worse case, electric shock or fire.
17
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01_EN_3P161684-3D.fm Page 18 Friday, June 20, 2008 1:06 PM
Inter-unit wiring
Ground wire
Wiring
through-holes
Remote Transmission
controller wiring
Remote controller cord
(weak electric)
P1 P2 F1 F2 T1 T2
Approximately Sheaths
7mm
Peel back
Forced off
10 – 15mm
the sheath
70
–
90mm
on the power
line and twist. Length of Clamp (4)
sheath to Cut off any excess
peel back material after tightening.
Inter-unit wiring
terminal block
(3P)
Transmission
wiring
Remote
controller
wiring
Wiring
through-holes
Clamping position
(Length of sheath to peel back)
10~15mm
Ground
wire
Remote
controller
wiring terminal
block
(P1 • P2)
Secure the ground wire
and inter-unit wiring with
both edges aligned.
Ground wire
80~100mm
Inter-unit
wiring sheath
Clamp (4)
Cut off any
S R
excess
material after
tightening the
inter-unit wiring
and ground
Ground terminal wire together.
<<Inter-unit wiring (strong electric) / ground wire>>
Terminal box lid
Electrical Wiring
Diagram Nameplate
(Inside of terminal box lid)
Fig. 27
Observe the notes mentioned below when wiring to the terminal block for wiring the units.
•
•
•
•
CAUTION
When clamping wiring, use the included clamping material to prevent outside pressure being exerted on the
wiring connections and clamp firmly. When doing the wiring, make sure the wiring is neat and does not
cause the terminal box lid to stick up, then close the cover firmly.
When attaching the terminal box lid, make sure you do not pinch any wires.
After all the wiring connections are done, fill in any gaps in the through holes with putty or insulation (procured locally) to prevent small animals and insects from entering the unit from outside. (If any do get in, they
could cause short circuits in the terminal box.)
Outside the machine, separate the weak wiring (remote controller cord) and strong wiring (interunit,
ground, and other power wiring) at least 50 mm so that they do not pass through the same place together.
Proximity may cause electrical interference, malfunctions, and breakage.
English
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Processing method of wiring through-holes
Inter-unit wiring,
ground wire, or remote
controller cord
Wiring through-holes
Sealing pad (Small) (13)
Putty or thermal
insulation material
(procured locally)
9-2 Wiring example
• Fit the power supply wiring of each unit with a switch and fuse as shown in the drawing.
COMPLETE SYSTEM EXAMPLE (3 systems)
Power supply
Power supply wiring
Transmission wiring
Main
switch
Switch
Fuse
BS unit
(Only for
Heat
recovery system)
Indoor unit
Remote controller
Fig. 28
1. When using 1 remote controller for 1 indoor unit. (Normal operation)
Power supply
220-240V
50Hz L N
or
220V
60Hz
Outdoor unit
Terminal box
IN/D OUT/D
F1 F2 F1 F2
No. 1
System
L N
P1 P2 F1 F2 T1 T2
Indoor
unit A
L
Power supply Power supply Power supply
220-240V
220-240V
220-240V
50Hz
50Hz
50Hz
N
L N
L N
or
or
or
220V
220V
220V
60Hz
60Hz
60Hz
L N
P1 P2 F1 F2 T1 T2
Indoor
unit B
P1 P2
L N
P1 P2 F1 F2 T1 T2
Indoor
unit C
P1 P2
P1 P2
L N
P1 P2 F1 F2 T1 T2
Most
downstream
Indoor unit
P 1 P2
Fig. 29
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01_EN_3P161684-3D.fm Page 20 Friday, June 20, 2008 1:06 PM
2. For group control or use with 2 remote controllers
Power supply Outdoor unit
220-240V
Terminal box
50Hz L N
or
No. 2
220V
System
60Hz
IN/D OUT/D
F1 F2 F1 F2
Indoor
unit A
Note: It is not necessary to designate
indoor unit address when using
group control.
The address is automatically set
when power is activated.
Indoor
unit B
L N
P1 P2 F1 F2 T1 T2
L N
Most downstream
indoor unit
Indoor
unit C
P1 P2 F1 F2 T1 T2
L N P1 P2 F1 F2 T1 T2
L N
P1 P2 F1 F2 T1 T2
P1 P2
P1 P2
For use with 2
remote controllers
P1 P2
Fig. 30
3. When including BS unit
Power supply
220-240V
50Hz
L
or
220V
60Hz
Outdoor unit
Terminal box
N
Indoor unit A
IN/D OUT/D
F1 F2 F1 F2
No. 3
System
L N
BS unit
Terminal box
OUT/D IN/D
F1 F2 F1 F2
L
Power supply
220-240V
50Hz
N
or
BS unit
220V
Terminal box
OUT/D IN/D
60Hz
F1 F2 F1 F2
L N
P1 P2 F1 F2 T1 T2
P1 P2
P1 P2 F1 F2 T1 T2
Most
downstream
indoor unit
P1 P2
Fig. 31
[ PRECAUTIONS ]
1. A single switch can be used to supply power to units on the same system. However, branch switches and
branch circuit breakers must be selected carefully.
2. Do not ground the equipment on gas pipes, water pipes or lightning rods, or crossground with telephones.
Improper grounding could result in electric shock.
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9-3 Control by 2 remote controllers (controlling 1 indoor unit by 2 remote controllers)
• When using 2 remote controllers, one must be set to “MAIN” and the other to “SUB”.
MAIN/SUB CHANGEOVER
(1) Insert a
screw driver into the recess between the upper and lower part of remote controller and, working from the 2 positions, pry off the upper part. (The remote controller PC board is attached to the upper
part of remote controller.) (Refer to Fig. 32)
(2) Turn the main/sub changeover switch on one of the two remote controller PC boards to “S”. (Leave the
switch of the other remote controller set to “M”.) (Refer to Fig. 33)
Upper part of
remote controller
Lower part of
remote controller
Insert the screwdriver here and gently work
off the upper part of remote controller.
(Factory setting)
Only one remote controller needs
to be changed if factory settings
have remained untoched.
Fig. 32
S
M
Remote
controller
PC board
S
M
Fig. 33
Wiring Method (See ‘‘ELECTRIC WIRING WORK’’)
(3) Remove the terminal box lid
(4) Add remote control 2 (slave) to the terminal block for remote controller (P1, P2) in the terminal box.
(There is no polarity.) (Refer to Fig. 30 and 8-3.)
9-4 Computerised control (forced off and on/off operation)
(1) Wire specifications and how to perform wiring
• Connect the input from outside to terminals T1 and T2 of the terminal block for remote controller.
F2
T1
T2
FORCED
OFF
Input A
Wire specification
Sheathed vinyl cord or cable (2 wire)
Gauge
0.75 - 1.25 mm
Max. 100 m
Contact that can ensure the minimum applicable load of 15 V DC, 10 mA.
Length
External terminal
21
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01_EN_3P161684-3D.fm Page 22 Friday, June 20, 2008 1:06 PM
(2) Actuation
• The following table explains FORCED OFF and ON/OFF OPERATIONS in response to Input A.
FORCED OFF
ON/OFF OPERATION
Input “ON” stops operation (impossible by remote controllers.) Input OFF → ON turns ON unit.
Input OFF enables control by remote controller.
Input ON → OFF turns OFF unit.
(3) How to select FORCED OFF and ON/OFF OPERATION
• Turn the power on and then use the remote controller to select operation.
9-5 Centralized control
• For centralized control, it is necessary to designate the group No. For details, refer to the manual of each
optional controllers for centralized control.
10. INSTALLATION OF THE DECORATION PANEL
Caution:
With a wireless remote controller, field setting and test operation cannot be performed without attaching the decoration panel.
<If performing a test run without attaching the decoration panel, read “11. FIELD SETTING” and “12. TEST
OPERATION” first.>
Refer to the installation manual attached to the decoration panel.
After installing the decoration panel, ensure that there is no space between the unit body and decoration panel.
11. FIELD SETTING
CAUTION
When performing field setting or test operation without attaching the decoration panel, do not
touch the drain pump. This may cause electric shock.
• Check that the outdoor unit has been wired properly.
Make sure the terminal box lids are closed on the indoor and outdoor units.
Field setting must be made from the remote controller and in accordance with installation conditions.
• Setting can be made by changing the “Mode No.”, “FIRST CODE NO.” and “SECOND CODE NO.”.
• For setting procedures and instructions, see “Field settings” provided with the remote controller.
11-1 Setting ceiling height
• Select the SECOND CODE NO. that corresponds to the ceiling height “Table 4”.
(SECOND CODE NO. is factory set to “01”.)
Table 4
FXFQ - PVE(9)
25 · 32 · 40 · 50
100 · 125 type
· 63 · 80 type
Standard · All
Ceiling round outlet
height (m) High ceiling 1
High ceiling 2
≤ 2.7
≤ 3.2
2.7 - 3
3 - 3.5
3.2 - 3.6
3.6 - 4.2
Mode No.
Note) 1
FIRST
CODE NO.
SECOND
CODE NO.
01
13 (23)
0
02
03
Note:
1. “Mode No.” setting is done in a batch for the group. To make or confirm settings for an individual unit, set
the internal mode number in parentheses.
2. The figure of the ceiling height is for the all round outlet. For the settings for four-direction (part of corner
closed off), three-direction and two-direction outlets, see the installation manual and technical guide supplied with the separately sold closure material kit.
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01_EN_3P161684-3D.fm Page 23 Friday, June 20, 2008 1:06 PM
11-2 Setting of air direction
• See the installation manual included with the sealing material of air discharge outlet kit, sold separately and
technical guide, for ceiling height settings for two and three-direction air discharge. (The SECOND CODE
NO. is factory set to “01” (all round outlet) before shipping.)
11-3 Settings for Mounting Options
• When installing an option sold separately, refer to the installation manual provided to the option.
11-4 Setting air filter sign
• Remote controllers are equipped with liquid crystal display air filter signs to display the time to clean air filters.
• Change the SECOND CODE NO. according to “Table 5” depending on the amount of dirt or dust in the
room.
(SECOND CODE NO. is factory set to “01” for filter contamination-light.)
Table 5
Setting
Spacing time of display air filter
sign (long life type)
Air filter contaminationlight
Air filter contaminationheavy
No Display
Mode No.
FIRST CODE
NO.
SECOND
CODE NO.
Approx. 2500 hrs
Approx. 1250 hrs
01
10 (20)
0
02
3
Note:
1. “Mode No.” setting is done in a batch for the group. To make or confirm settings for an individual unit, set
the internal mode number in parentheses.
2. Make settings for “No Display” in cases where no cleaning display is required, e.g., at the time of regular
maintenance servicing.
• The air conditioner is provided with a long life filter as a standard accessory. Explain to the customer the
necessity of cleaning the filter periodically along with the set time for filter cleaning for the prevention of
clogging.
When using wireless remote controllers
• When using wireless remote controllers, wireless remote controller address setting is necessary. Refer to
the installation manual attached to the wireless remote controller for setting instructions.
SECOND CODE NO.
Mode No.
FIRST CODE NO.
SETTING
FIELD SET MODE
• Set the remote controller to the field set mode. For details, refer to the “HOW TO SET IN THE FIELD”, in
the remote controller manual.
• When in the field set mode, select mode No. 12, then set the first code (switch) No. to “1”. Then set second
code (position) No. to “01” for FORCED OFF and “02” for ON/OFF OPERATION. (FORCED OFF at factory
set)
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01_EN_3P161684-3D.fm Page 24 Friday, June 20, 2008 1:06 PM
12. TEST OPERATION
Refer to the installation manual of the outdoor unit.
• The operation lamp of the remote controller will flash when an malfunction occurs. Check the malfunction
code on the liquid crystal display to identify the point of trouble. An explanation of malfunction codes and
the corresponding trouble is provided in “CAUTION FOR SERVICING” of the indoor unit.
If any of the items in Table 6 are displayed, there may be a problem with the wiring or power, so check the
wiring again.
Table 6
Remote control display
“Concentrated Management” is lit up
“U4” is lit up
“UH” is lit up
No display
Content
• There is a short circuit at the FORCED OFF terminals (T1, T2).
• The power on the outdoor unit is off.
• The outdoor unit has not been wired for power supply.
• Incorrect wiring for the transmission wiring and / or FORCED
OFF wiring.
• The power on the indoor unit is off.
• The indoor unit has not been wired for power supply.
• Incorrect wiring for the remote controller wiring, the transmission
wiring, and / or the FORCED OFF wiring.
• If the decoration panel is installed on the indoor unit during the test run, check the operation of the swing
flap on the panel.
• In order to protect the indoor unit, instruct the customer not to operate the air conditioner until the interior
work is completed if the interior work has not been finished at the end of the test run.
(If the air conditioner is operated, substances discharged from the paint, adhesive, etc. can contaminate the
indoor unit, and they may cause splashing or leakage of water.)
NOTE
• After the test run is finished, check the items listed in “2. Items to be checked at time of delivery”.
English
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3P161684-3D EM07A071A
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