INSTALLATION MANUAL
English
SYSTEM Inverter Air Conditioners
Français
MODELS
Ceiling-mounted Duct type
FXMQ07PVJU
FXMQ09PVJU
FXMQ12PVJU
FXMQ18PVJU
FXMQ24PVJU
FXMQ30PVJU
Español
FXMQ36PVJU
FXMQ48PVJU
READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLATION.
KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE.
LIRE SOIGNEUSEMENT CES INSTRUCTIONS AVANT L’INSTALLATION.
CONSERVER CE MANUEL A PORTEE DE MAIN POUR REFERENCE ULTERIEURE.
LEA CUIDADOSAMENTE ESTAS INSTRUCCIONES ANTES DE INSTALAR.
GUARDE ESTE MANUAL EN UN LUGAR A MANO PARA LEER EN CASO DE TENER ALGUNA
DUDA.
VRV SYSTEM Inverter Air Conditioners
CONTENTS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
SAFETY CONSIDERATIONS.......................................... 1
BEFORE INSTALLATION ................................................ 3
SELECTING INSTALLATION SITE.................................. 4
PREPARATIONS BEFORE INSTALLATION .................... 5
INDOOR UNIT INSTALLATION ....................................... 6
REFRIGERANT PIPING WORK...................................... 7
DRAIN PIPING WORK .................................................... 8
DUCT WORK................................................................. 10
ELECTRIC WIRING WORK .......................................... 11
WIRING EXAMPLE AND HOW TO SET
THE REMOTE CONTROLLER...................................... 11
11. FIELD SETTING ............................................................ 14
12. TEST OPERATION........................................................ 16
1.
SAFETY CONSIDERATIONS
Read these SAFETY CONSIDERATIONS for Installation
carefully before installing air conditioning equipment. After completing the installation, make sure that the unit operates properly during the startup operation.
Instruct the customer on how to operate and maintain the unit.
Inform customers that they should store this Installation Manual
with the Operation Manual for future reference.
Always use a licensed installer or contractor to install this product. Improper installation can result in water or refrigerant leakage, electrical shock, fire, or explosion.
Meanings of DANGER, WARNING, CAUTION, and NOTE
Symbols:
DANGER................. Indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
WARNING............... Indicates a potentially hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION................ Indicates a potentially hazardous situation which, if not avoided, may result
in minor or moderate injury. It may also
be used to alert against unsafe practices.
NOTE ...................... Indicates situations that may result in
equipment or property-damage accidents only.
DANGER
• Refrigerant gas is heavier than air and replaces oxygen.
A massive leak can lead to oxygen depletion, especially
in basements, and an asphyxiation hazard could occur
leading to serious injury or death.
English
Installation manual
• Do not ground units to water pipes, gas pipes, telephone
wires, or lightning rods as incomplete grounding can
cause a severe shock hazard resulting in severe injury or
death. Additionally, grounding to gas pipes could cause a
gas leak and potential explosion causing severe injury or
death.
• If refrigerant gas leaks during installation, ventilate the
area immediately. Refrigerant gas may produce toxic gas
if it comes in contact with fire. Exposure to this gas could
cause severe injury or death.
• After completing the installation work, check that the refrigerant gas does not leak throughout the system.
• Do not install unit in an area where flammable materials
are present due to risk of explosions that can cause serious injury or death.
• Safely dispose all packing and transportation materials
in accordance with federal/state/local laws or ordinances. Packing materials such as nails and other metal or
wood parts, including plastic packing materials used for
transportation may cause injuries or death by suffocation.
WARNING
• Only qualified personnel must carry out the installation
work. Installation must be done in accordance with this
installation manual. Improper installation may result in
water leakage, electric shock, or fire.
• When installing the unit in a small room, take measures
to keep the refrigerant concentration from exceeding allowable safety limits. Excessive refrigerant leaks, in the
event of an accident in a closed ambient space, can lead
to oxygen deficiency.
• Use only specified accessories and parts for installation
work. Failure to use specified parts may result in water
leakage, electric shocks, fire, or the unit falling.
• Install the air conditioner on a foundation strong enough
that it can withstand the weight of the unit. A foundation
of insufficient strength may result in the unit falling and
causing injuries.
• Take into account strong winds, typhoons, or earthquakes when installing. Improper installation 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 state, and national regulations. An insufficient power supply capacity
or improper electrical construction may lead to electric
shocks or fire.
• Make sure that all wiring is secured, that specified wires
are used, and that no external forces act on the terminal
connections or wires. Improper connections or installation may result in fire.
• When 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.
1
• Before touching electrical parts, turn off the unit.
• Be sure to install a ground fault circuit interrupter if one
is not already available. This helps prevent electrical
shocks or fire.
• Securely fasten the outside unit terminal cover (panel). If
the terminal cover/panel is not installed properly, dust or
water may enter the outside unit causing fire or electric
shock.
• When installing or relocating the system, keep the refrigerant circuit free from substances other than the specified refrigerant (R-410A) such as air. Any presence of air
or other foreign substance in the refrigerant circuit can
cause an abnormal pressure rise or rupture, resulting in
injury.
• Do not change the setting of the protection devices. If the
pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than
those specified by Daikin are used, fire or explosion may
occur.
CAUTION
• Do not touch the switch with wet fingers. Touching a
switch with wet fingers can cause electric shock.
• Do not allow children to play on or around the unit to prevent injury.
• Do not touch the refrigerant pipes during and immediately after operation as the refrigerant pipes may be hot or
cold, depending on the condition of the refrigerant flowing through the refrigerant piping, compressor, and other
refrigerant cycle parts. Your hands may suffer burns or
frostbite if you touch the refrigerant pipes. To avoid injury, give the pipes time to return to normal temperature or,
if you must touch them, be sure to wear proper gloves.
• Heat exchanger fins are sharp enough to cut.
To avoid injury wear glove or cover the fins when working
around them.
• Install drain piping to proper drainage. Improper drain
piping may result in water leakage and property damage.
• Insulate piping to prevent condensation.
• Be careful when transporting the product.
• Do not turn off the power immediately after stopping operation. Always wait for at least 5 minutes before turning
off the power. Otherwise, water leakage may occur.
• Do not use a charging cylinder. Using a charging cylinder
may cause the refrigerant to deteriorate.
• Refrigerant R-410A in the system must be kept clean, dry,
and tight.
(a) Clean and Dry -- Foreign materials (including mineral
oils such as SUNISO oil or moisture) should be prevented from getting into the system.
(b) Tight -- R-410A does not contain any chlorine, does
not destroy the ozone layer, and does not reduce the
earth’s protection again harmful ultraviolet radiation.
R-410A can contribute to the greenhouse effect if it is
released. Therefore take proper measures to check
for the tightness of the refrigerant piping installation.
Read the chapter Refrigerant Piping and follow the
procedures.
2
• Since R-410A is a blend, the required additional refrigerant must be charged in its liquid state. If the refrigerant is
charged in a state of gas, its composition can change and
the system will not work properly.
• The indoor unit is for R-410A. See the catalog for indoor
models that can be connected. Normal operation is not
possible when connected to other units.
• Indoor units are for indoor installation only. Outdoor
units can be installed either outdoors or indoors.
• Do not install the air conditioner in the following locations:
(a) Where a mineral oil mist or oil spray or vapor is produced, for example, in a kitchen.
Plastic parts may deteriorate and fall off or result in
water leakage.
(b) Where corrosive gas, such as sulfurous acid gas, is
produced.
Corroding copper pipes or soldered parts may result
in refrigerant leakage.
(c) Near machinery emitting electromagnetic waves.
Electromagnetic waves may disturb the operation of
the control system and cause the unit to malfunction.
(d) Where flammable gas may leak, where there is carbon fiber, or ignitable dust suspension in the air, or
where volatile flammables such as thinner or gasoline are handled. Operating the unit in such conditions can cause a fire.
• Take adequate measures to prevent the outside unit from
being used as a shelter by small animals. Small animals
making contact with electrical parts can cause malfunctions, smoke, or fire. Instruct the customer to keep the
area around the unit clean.
NOTE
• Install the power supply and control wires for the indoor
and outdoor units at least 3.5 feet away from televisions
or radios to prevent image interference or noise. Depending on the radio waves, a distance of 3.5 feet may not be
sufficient to eliminate the noise.
• Dismantling the unit, treatment of the refrigerant, oil and
additional parts must be done in accordance with the relevant local, state, and national regulations.
• Do not use the following tools that are used with conventional refrigerants: gauge manifold, charge hose, gas
leak detector, reverse flow check valve, refrigerant
charge base, vacuum gauge, or refrigerant recovery
equipment.
• If the conventional refrigerant and refrigerator oil are
mixed in R-410A, the refrigerant may deteriorate.
• This air conditioner is an appliance that should not be accessible to the general public.
• The wall thickness of field-installed pipes should be selected in accordance with the relevant local, state, and
national regulations.
English
2.
BEFORE INSTALLATION
• When moving the unit while removing it from the carton
box, be sure to lift it by holding on to the four lifting lugs
without exerting any pressure on other parts, especially,
the refrigerant piping, drain piping, flanges and other
resin parts.
• Be sure to check the type of R410A refrigerant to be used
before installing the unit. (Using an incorrect refrigerant will
prevent normal operation of the unit.)
• The accessories needed for installation must be retained in
your custody until the installation work is completed. Do not
discard them!
• Decide upon a line of transport.
• Leave the unit inside its packaging while moving, until reaching the installation site. Where unpacking is unavoidable, use
a sling of soft material or protective plates together with a
rope when lifting, to avoid damage or scratches to the unit.
• When moving the unit or affter opening, hold the unit by the
hanger brackets (× 4). Do not apply force to the refrigerant
piping, drain piping, flanges or plastic parts.
• For the installation of outdoor unit, refer to the installation
manual attached to the outdoor unit.
• 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 which
could eventually cause the unit to fall out of place, or
could lead to leaks.)
• Where corrosive gas like sulfurous gas exists. (Copper tubing and brazed spots may corrode which could
eventually lead to refrigerant leaks.)
• Where exposed to combustible gases and where volatile flammable gas like thinner or gasoline is used.
(Gas in the vicinity of the unit could ignite.)
• 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.
• This unit, both indoor and outdoor, is suitable for installation in a
commercial and light industrial environment.
If installed as a household appliance it could cause electromagnetic interference.
2-1
(1) - (12)
Operation manual
Installation manual
Fig. 1
Name
Metal
clamp (1)
Drain
hose (2)
Screws for duct
flanges (3)
Insulation for
fitting
Quantity
1 pc.
1 pc.
As described in
table below
1 each
Thin
M5×5/8
Shape
07 • 09 •
12 type
6
18 • 24 •
30 type
18
36 • 48 type
26
for liquid pipe
(4)
Thick
for gas pipe
(5)
Name
Sealing pad
Clamp (8)
Washer fixing plate (9)
Wire sealing
material (10)
Quantity
–
11 pcs.
4 pcs.
2 pcs.
Shape
1 pc.
Large
(Dark gray) (6)
Small
(Gray)
2 pcs.
Middle
(Dark gray) (7)
PRECAUTIONS
• Be sure to read this manual before installing the indoor unit.
• Entrust installation to the place of purchase or a qualified serviceman. Improper installation could lead to leaks and, in
worse cases, electric shock of fire.
• Use only parts provided with the unit or parts satisfying
required specifications. Unspecified parts could cause the
unit to fall out of place, or could lead to leaks and, in worse
cases, electric shock or fire.
• Be sure to mount an air filter (part to be procured in the field)
in the suction air passage in order to prevent water leaking,
etc.
2-2
[PRECAUTION]
The accessories are required for the installation of the air conditioner. Be sure to keep them until the installation work is completed.
Name
Washer (11)
Insulation
tube (12)
Quantity
8 pcs.
2 pcs.
(Other)
• Operation manual
• Installation manual
Shape
ACCESSORIES
Check that the following accessories are provided and that each
accessory is correct in amount.
Refer to the Fig. 1 of this sheet.
English
3
2-3
OPTIONAL ACCESSORIES
b. Items to be checked at time of delivery
• These is one type of remote controller: wired.
Items to be checked
NOTE
Are you sure the control box lid, air filter, air inlet grille, and
air outlet grille are mounted?
• If you wish to use a remote controller that is different from the
above, select a suitable remote controller after consulting
catalogs and technical materials.
Did you explain about operations while showing the operation manual to your customer?
FOR THE FOLLOWING ITEMS, TAKE SPECIAL
CARE DURING CONSTRUCTION AND CHECK
AFTER INSTALLATION IS FINISHED.
If not properly done, what is
likely to occur.
Are the indoor and outdoor
unit fixed firmly?
The units may drop, vibrate
or make noise.
Was the installation of the
outdoor unit completed?
The unit may malfunction or
the components burn out.
Is the gas leak test
finished?
No cooling or heating.
Is the unit fully insulated?
(Refrigerant piping, drain
piping, and duct)
Condensate water may drip.
Dose drainage flow
smoothly?
Condensate water may drip.
Does the power supply voltThe unit may malfunction or
age conform to the indicathe components burn out.
tion on the name plate?
Are wiring and piping
correct?
The unit may malfunction or
the components burn out.
Is the air conditioner properly grounded?
Dangerous in case of current leakage.
Is wiring size according to
specifications?
The unit may malfunction or
the components burn out.
Is something blocking the
air outlet or inlet of either
No cooling or heating.
the indoor or outdoor units?
Did you set the external
static pressure?
No cooling or heating.
Are refrigerant piping length
The refrigerant charge in
and additional refrigerant
the system is not clear.
charge noted down?
Did you check that no wiring
connection screws were
Electric shock or fire.
loose?
Also review the “SAFETY CONSIDERATIONS”.
4
Did you deliver the operation manual along with the installation manual to the customer?
Did you explain the customer the handling and cleaning
methods of the field supplies (e.g., the air filter, air inlet
grilles, and air outlet grille)?
Did you deliver instruction manual, if any, for the field supplies to the customer?
a. Items to be checked after completion of work
Items to be checked
Check
Check
c. Points for explanation about operations
The items with WARNING and CAUTION marks in the operation
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 operation manual.
2-4
NOTE TO 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 hanging brackets in the case of moving the
indoor and outdoor units at the time of and after opening
the packages. Do not impose undue force on other parts,
such as the refrigerant piping, drain piping, or flanges, in
particular.〉
〈Add heat insulation material to the indoor unit if the temperature above the ceiling is likely to exceed 86°F and a relative humidity of 80%.〉
〈Make sure that the insulation material is made of glass wool
or polyethylene foam, has a minimum thickness of 3/8 in.,
and can be accommodated in the opening on the ceiling.〉
(1) Select an installation site where the following conditions are
fulfilled and that meets with your customer’s approval.
• A place where cool (warm) air is delivered to the entire
room.
• Where nothing blocks the air passage.
• Where condensate can be properly drained.
• If supporting structural members are not strong enough
to take the unit’s weight, the unit could fall out of place
and cause serious injury.
• Where the false ceiling is not noticeably on an incline.
• Where there is no risk of flammable gas leakage.
• Where sufficient clearance for maintenance and service
can be ensured. (Refer to Fig. 2-1)
• Where piping between indoor and outdoor units is possible within the allowable limit. (Refer to the installation
manual of the outdoor unit.)
English
• Install the indoor and outdoor units, power supply wiring and
connecting wires at least 3.3 ft away from televisions or radios
in order to prevent image interference or noise.
(Depending on the radio waves, a distance of 3.3 ft may not
be sufficient enough to eliminate the noise.)
• In the case of the installation of a wireless remote controller, the
transmission distance of the wireless remote controller may be
shortened if the room has a fluorescent light of electronic lighting type (i.e., an inverter or rapid-start fluorescent light).
Keep the distance between the receiver and the fluorescent
light as far as possible.
3. Inspection hatch 3 for the lower part of the product
and the lower part of the control box (see axial direction view A-2). (Refer to Fig. 2-3)
(length: in.)
Case 1
Control box
*H3=Min. 12
CAUTION
Inspection hatch
Ceiling
28
(2) Use hanging bolts to install the indoor unit. Check that the
place of installation withstands the weight of the indoor unit.
Secure the hanging bolts with proper beams if necessary.
(Hanging bolt pitch)
B
Hanging bolt (× 4)
Fig. 2-2
Case 2, 3
Inspection hatch
(Ceiling opening)
Min. 28 (service space)
Control box
*H3=Min. 3/4
[Required installation place]
The dimensions indicate the
minimum required space of
installation.
Fig. 2-1
(1) Check the positional relationship between the ceiling opening hole and the hanging bolt of the unit.
• For the maintenance, inspection, and other servicing
purposes of the control box and drain pump, prepare one
of the following service spaces.
1. Inspection hatch 1 (17-3/4 × 17-3/4) for the control
box and a minimum space of 12 in. for the lower part
of the product. (Refer to Fig. 2-2)
2. Inspection hatch 1 (17-3/4 × 17-3/4) for the control
box and inspection hatch 2 for the lower part of the
product (see axial direction view A-1). (Refer to Fig.
2-3)
Inspection hatch
A
Ceiling
Inspection hatch 1
(17-3/4×17-3/4)
Inspection hatch 3
(Same as the indoor
unit size +12 or more)
Control box
Min. D=B+12
PREPARATIONS BEFORE INSTALLATION
English
C
Air inlet
Min. 8
4.
Bottom of unit
Control box
B
• The H1 dimension indicates the
height of the product.
• Determine the H2 dimension by
maintaining a downward slope of
at least 1/100 as specified in
“7. DRAIN PIPING WORK”.
Air outlet
Min. 18
Min. 99
(If no ceiling board is provided.)
Min. 1
*H1=12
*H2=Min. 25
Floor surface
Inspection hatch 1
(17-3/4×17-3/4)
Control box
(length: in.)
Min. 12
Ceiling
24-13/16
(Hanging bolt pitch)
28
Inspection
hatch 2
(Same as the
indoor unit
size or more)
28
Axial direction view A-1
Axial direction view A-2
• Determine the H3
dimension by maintaining a
downward slope of at least
1/100 as specified in
“7. DRAIN PIPING WORK”.
Fig. 2-3
Model
B
C
D
07 • 09 • 12 type 22 23-1/8 34
18 • 24 • 30 type 40 40-7/8 52
56 56-5/8 68
36 • 48 type
(length: in.)
5
(2) Mount the canvas ducts to the air outlet and inlet so that the
vibration of the air conditioner will not be transmitted to the
duct or ceiling. Apply a sound-absorbing material (insulation material) to the inner wall of the duct and vibration insulation rubber to the hanging bolts (refer to 8. DUCT WORK).
(3) Open installation holes (if the ceiling already exists).
• Open the installation holes on the ceiling. Lay the refrigerant piping, drain piping, power line, transmission wiring, and remote controller wiring for the piping and wiring
connection port of the unit.
In the case of the installation of a wireless remote controller, refer to the installation manual provided with the
wireless remote controller.
Refer to 6. REFRIGERANT PIPING WORK, 7. DRAIN
PIPING WORK, and 10. WIRING EXAMPLE AND HOW
TO SET THE REMOTE CONTROLLER.
• The ceiling framework may need reinforcement in order
to keep the ceiling horizontal and prevent the vibration of
the ceiling after the installation holes are opened. For
details, consult your construction or interior contractor.
(4) Install the hanging bolts. Make sure that the hanging bolts
are M10 in size.
• Use hole-in anchors if the hanging bolts already exist;
otherwise use embedded inserts and embedded foundation bolts so that they will withstand the weight of the unit.
Adjust the distance to the ceiling surface in advance.
5.
INDOOR UNIT INSTALLATION
〈It may be easier to install accessories (sold separately)
before installing the indoor unit. Refer to the installation
manuals provided to the accessories as well.〉
Be sure to use the accessories and specified parts for
installation work.
(1) Temporally install the indoor unit.
• Connect the hanging brackets to the hanging bolts. Be
sure to use and tighten the nut and washer (11) for each
hanging bracket from both upper and lower sides of the
hanging bracket. (Refer to Fig. 3) At that time, the fall of
the washer (11) for the hanging bracket can be prevented if the washing fixing plate (9) is used.
[Fixing hanging brackets]
Part to be procured in the field
Washer (11) (accessory)
Tighten from above and below
(Double nut)
[Fixing method of washers]
Installation example
Nut on the upper side
Ceiling slab
Anchor
Insert
Long nut or turn-buckle
Hanging bolt
Indoor unit
Note) All the above parts are field supplied.
Washer fixing plate (9)
(accessory)
Fig. 3
CAUTION
• During the installation work, perform the curing of the air
outlet and protect the resin drain pan of the indoor unit
from the intrusion of foreign substances, such as welding spatters.
Otherwise, water leakage may occur as a result of damage,
such as hole damage, to the resin drain pan.
(2) Make adjustments so that the unit will be in the right position.
(3) Check the level of the unit.
(4) Remove the washer fixing plates for the falling prevention of
the washers for the hanging brackets, tighten the nuts on
the upper side, and securely fix the unit.
Hanging bracket
Bottom of product
Level
6
Vinyl tube
English
CAUTION
• Use the level and check that the unit is installed horizontally.
(4-directions)
• In the case of using a vinyl tube in place of the level, put the
both edges of the vinyl tube in close contact with the bottom of
the product to make levelness adjustment.
If the unit is installed at a slant with the drain pipe side set
high, in particular, the float switch will not operate normally
and water leakage may result.
(1) Connect the piping.
• The outdoor unit is filled with refrigerant.
• When connecting or disconnecting piping to or from the
unit, be sure to use two spanners and two torque
wrenches. (Refer to Fig. 4)
Torque wrench
Spanner
Flare nut
6.
REFRIGERANT PIPING WORK
〈As for the refrigerant piping of the outdoor unit, refer to the
installation manual provided to the outdoor unit.〉
〈Perform heat insulation work on both gas piping and liquid
piping, or otherwise water leakage may result.〉
〈Use the insulation material that withstands a temperature
of 248°F.〉
〈Reinforce the insulation material for the refrigerant piping if
the ambient temperature is high, or otherwise dew condensation may result on the surface of the insulation material.〉
〈Make sure that the refrigerant is R410A before refrigerant
piping work. If the refrigerant is different, the air conditioner will not operate normally.〉
Piping union
Fig. 4
• Refer to Table 1 for the processing dimensions of the
flare.
• Use the flare nut provided with the unit.
• Apply ether oil or ester oil only to inner side of the
flare and screw in the flare nut three to four turns first by
hand at the time of connecting the flare nut.
(Refer to Fig. 5)
Apply ester oil or ether oil
only to inner side of flare.
CAUTION
Fig. 5
• Refer to Table 1 for the corresponding tightening torque.
Table 1
Flare
Pipe
Tightening torque dimensions
size
A (in.)
24.1 – 29.4 lbf·ft
0.504 – 0.520
φ 1/2
36.5 – 44.5 lbf·ft
0.638 – 0.654
φ 5/8
45.6 – 55.6 lbf·ft
0.760 – 0.776
0
φ 3/8
• Be sure to use the specified type of refrigerant for the
refrigeration cycle and do not contaminate the refrigerant
with air.
• Ventilate the room in case of refrigerant leakage during
installation work.
0
90 ±2
CAUTION
R0.016-0.031
0
0.342 – 0.358
45 ±2
10.4 – 12.7 lbf·ft
A
φ 1/4
Flare shape
0
This product uses new refrigerant (R410A) only. Be sure to
keep the items on the right-hand side and conduct the
installation work.
• Use a dedicated pipe cutter and flare tool for R410A.
• When connecting the flare, apply ether oil or ester oil
only to inner side of the flare.
• Be sure to use the flare nut provided with the unit. (Do
not use a different flare nut (such as a type-1 flare nut),
or otherwise refrigerant leakage may result.)
• Perform the curing of the piping with pinching or taping
of the piping in order to prevent the intrusion of dirt, dust,
and moisture into the piping.
CAUTION
• Do not excessively tighten the flare nut.
Doing so will break the flare nut and refrigerant leakage may
result.
• Make sure that all parts around the flare are free of oil.
The drain pan and the resin part may be deteriorated if oil is
attached.
• If no torque wrenches are available, refer to Table 2 as a
standard.
When the flare nut is tightened with the spanner, the
tightening torque should increase suddenly. Tighten the
flare nut further for the corresponding angle shown in
Table 2.
English
7
Table 2
Pipe size
Further tightening angle
Recommended arm length of
tool
φ 1/4
60 to 90 degrees
Approx. 5-7/8 in.
φ 3/8
60 to 90 degrees
Approx. 7-7/8 in.
φ 1/2
30 to 60 degrees
Approx. 9-13/16 in.
φ 5/8
30 to 60 degrees
Approx. 11-13/16 in.
(2) On completion of installation work, check that there is no
gas leakage.
(3) Refer to the illustration on the right-hand side and be sure to
perform heat insulation work on the piping joints after gas
leakage checks. (Refer to Fig. 6)
• Wrap the middle sealing material (7) around the insulation for fitting (4) and (5) for the joint (flare nut part).
CAUTION
• Be sure to perform the heat insulation of the local piping
up to the piping joint.
If the piping is exposed, dew condensation may result. Furthermore, a burn may be caused if a human body comes in
contact with the piping.
• Perform nitrogen substituent or apply nitrogen into the
refrigerant piping (see NOTE 1) in the case of refrigerant
piping blazing (see NOTE 2). Then perform the flare connection of the indoor unit. (Refer to Fig. 7)
Heat insulation procedure for liquid piping
Insulation for fitting (4) (accessory)
Insulation material
for piping
(on unit side)
Refrigerant
piping
Flare nut joint
Make sure that
Middle sealing pad (7)
the seam faces
(accessory)
upward.
Attached to
the surface.
Part to be
brazed
Taping
hands
valve
Nitrogen
Nitrogen
Main unit
Clamp (8)
(accessory)
Fig. 7
CAUTION
Wrap the insulation material
around the portion from the
surface of the main unit to the
upper part of the flare nut joint.
Insulation material
for piping (field supply)
Liquid pipe
Gas pipe
Fig. 6
Heat insulation procedure for gas piping
Insulation for fitting (5) (accessory)
Insulation material
for piping
(on unit side)
Attached to
the surface.
Flare nut joint
Make sure that
Middle sealing pad (7)
the seam faces
(accessory)
upward.
Clamp (8)
(accessory)
Insulation material
for piping (field supply)
Wrap the insulation material
around the portion from the
surface of the main unit to the
upper part of the flare nut joint.
• Use the insulation for fitting (4) and (5) provided to the
liquid piping and gas piping, respectively, and conduct
heat insulation work.
(Tighten both edges of the insulation for fitting (4) and (5)
for each joint with the clamp (8).)
• Make sure that the joint of the insulation for fitting (4) and
(5) for the joint on the liquid piping and gas piping side
faces upward.
8
Pressurereducing valve
• Do not use any antioxidant at the time of piping blazing.
The piping may be clogged with a residual antioxidant and
parts may malfunction.
NOTE
1. At the time of blazing, set the pressure of nitrogen to
approximately 2.9 PSI (close to the pressure of a breeze
coming in contact with the cheek) with a decompression
valve.
2. Do not use flux at the time of blazing and connecting the
refrigerant piping. Use a copper phosphorus brazing alloy
(BCuP-2/BCu 93P-710/795), which does not require flux,
for blazing.
(Flux has a bad influence on the refrigerant piping. Chlorine-based flux will cause piping corrosion. Furthermore, if
it contains fluorine, the flux will deteriorate refrigerant oil.)
• As for the branching of the refrigerant piping or refrigerant,
refer to the installation manual provided with the outdoor unit.
7.
DRAIN PIPING WORK
(1) Conduct drain piping work.
Refrigerant
Check that the piping
piping
ensures proper draining.
• Make sure that the diamDrain socket
eter of the piping excludSocket
for
ing the rising part is the
maintenance
same as or larger than
(with rubber cap)
the diameter of the connecting pipe (vinyl chloride pipe with an outer diameter
of 1/4 in. and a nominal inner diameter of 31/32 in.).
• Make sure that the piping is short enough with a downward slope of at least 1/100 and that there is no air
bank formed. No drain trap is required.
English
• The drain piping will be clogged with water and water leakage
may result if the water is accumulated in the drain piping.
• Select the diameter of the concentrated drain piping to
suit the capacity of equipment connecting to the concentrated drain piping (see the equipment design sheet).
Ceiling slab
12 in. max.
• Conduct drain-up piping work if the gradient is insufficient.
• Attach a support bracket at 3.3 to 4.9 ft intervals for
the prevention of piping deflection.
3.3 - 4.9 ft
Support bracket
Drain-up piping
(field supply)
Support bracket
3.3 - 4.9 ft
28 in. max.
CAUTION
Adjustable
(18-3/8 in. max.)
Metal clamp (1) (accessory)
Drain hose (2) (accessory)
Downward slope of at least 1/100
Drain hose (2) (accessory)
• Be sure to use the drain hose (2) and metal clamp (1).
Insert the drain hose (2) deep into the base of the
drain socket, and securely fasten the metal clamp (1)
within the taped part on the insertion front end of the
hose.
Be sure to fasten the screw of the metal clamp (1) until
the margin of the screw thread decreases to 3/16 in. or
less.
Metal clamp (1)
(accessory)
Horizontal or
upward slope
Locate the drain hose horizontally
or with a little upward gradient.
If there is an air bank, noise may be generated
as a result of a water backflow when the drain
pump comes to a stop.
(2) Check the smooth draining of the piping on completion of
the installation of the piping.
Tape
Drain hose (2)
(accessory)
18 - 3/8 in.
NOTE
Be sure to follow the instructions as below.
• Do not connect the drain piping directly to a sewer that
smells of ammonia.
The ammonia in the sewer may reach through the drain
piping and corrode the heat exchanger of the indoor unit.
• Do not bend or twist the provided drain hose (2) in order
not to impose excessive force on the hose. (Doing so
may result in water leakage.)
• Take the procedure shown in the following illustration to
perform concentrated drain piping.
Concentrated drain piping
Maintain a downward slope of at least
1/100 so that no air bank will be formed.
The drain piping will be clogged with water
and water leakage may result if the water is
accumulated in the drain piping.
[Before electrical work]
CAUTION
• A licensed electrical engineering technician must conduct electrical wiring work (including grounding work).
• If no licensed electrical engineering technician is available, take steps 3 and 4 after the test operation of the air
conditioner is finished.
1. Remove the control box lid, and connect the singlephase electric wires to terminals L1 and L2 of the terminal block and the ground wiring to the ground terminal.
Perform wiring according to 10-1. CONNECTING
POWER SUPPLY, GROUND, REMOTE CONTROLLER,
AND TRANSMISSION WIRING in 10. WIRING EXAMPLE AND HOW TO SET THE REMOTE CONTROLLER.
CAUTION
• In order not to impose tension on the wire connections, perform clamping securely with the provided clamp (8) specified
in 3 in 10-1. CONNECTING POWER SUPPLY, GROUND,
REMOTE CONTROLLER, AND TRANSMISSION WIRING.
2. Check that the control box lid is closed before turning the
air conditioner ON.
3
3. Provide approximately 61 in of water gradually into the
drain pan through the water inlet on the bottom of the drain
socket or the outlet. Make sure that the water is not spilled
onto the drain pump.
4. The drain pump will operate with the power turned ON.
Check that the pump drains water smoothly. (The drain
pump will stop automatically in 10 minutes.)
English
9
The drainage can be checked with the water level change
in the drain pan through the water inlet.
CAUTION
• Do not touch the drain pump.
Otherwise, an electric shock may be received.
• Do not impose external force on the float switch.
Otherwise, a failure may result.
5. On completion of the drainage check, shut off the power
supply and disconnect the power supply line.
6. Put the control box lid to the original position.
[After electrical work]
• After completion of 8. DUCT WORK provide approximately
3
61 in of water gradually into the drain pan through the water
inlet on the bottom of the drain socket, and check that the
water is drained while the air conditioner is in cooling operation according to 11. FIELD SETTING and 12. TEST OPERATION. Make sure that the water is not spilled onto the
electric parts of the drain pump and others.
(3) Be sure to conduct heat insulation work on the following portions, or otherwise water leakage may occur as
a result of dew condensation.
• Drain piping indoors
• Drain socket
Drain soket
Drain pan
Water inlet
Refrigerant piping
Control box lid
Control box
Terminal block for
power supply
Air outlet
Drain pump position
Socket for maintenance
(with rubber cap)
Screw
Water inlet lid
Plastic water container
• On completion of the drainage check, refer to the following illustration, and use the provided large sealing pad
(6) and heat insulate the metal clamp (1) and drain hose
(2).
Make sure that the
seam faces upward.
8.
DUCT WORK
Pay the utmost attention to the following items and conduct
the ductwork.
• Check that the duct will not be in excess of the setting range
of external static pressure for the unit. (Refer to the technical
datasheet for the setting range. Each model has each setting
range of external static pressure.)
• Attach a canvas duct each to the air outlet and air inlet so that
the vibration of the equipment will not be transmitted to the
duct or ceiling.
Use a sound-absorbing material (insulation material) for the
lining of the duct and apply vibration insulation rubber to the
hanging bolts.
• At the time of duct welding, perform the curing of the duct so
that the sputter will not come in contact with the drain pan for
the filter.
• If the metal duct pass through a metal lath, wire lath, or metal
plate of a wooden structure, separate the duct and wall electrically.
• Be sure to heat insulate the duct for the prevention of dew
condensation. (Material: Glass wool or styrene foam; Thickness: 31/32 in.)
• Be sure to attach the field supply air filter to the air inlet of the
unit or field supply inlet in the air passage on the air suction
side. (Be sure to select an air filter with a duct collection efficiency of 50 weight percent.)
• Explain the operation and washing methods of the locally
procured components (i.e., the air filter, air inlet grille, and air
outlet grille) to the customer.
• Locate the air outlet grille on the indoor side for the prevention of drafts in a position where indirect contact with people.
• The air conditioner incorporates a function to adjust the fan to
rated speed automatically. (11. FIELD SETTING)
Therefore, do not use booster fans midway in the duct.
Connection method of ducts on air inlet and outlet sides.
• Connect the field supply duct in alignment with the inner side
of the flange.
• Connect the flange and unit with the flange connection screw
(3).
• Wrap aluminum tape around the flange and duct joint in order
to prevent air leakage.
Flange on air inlet side
(provided with the unit)
Screws for duct
flanges (3)
(accessory)
Large sealing pad (6)
(accessory)
Flange on air outlet side
(provided with the unit)
Insulation material
(field supply)
Air inlet
Insulation material
(field supply)
Unit
Air outlet
Canvas duct
(field supply)
Screws
for duct
flanges (3)
(accessory)
Metal clamp (1)
(accessory)
3/16 in. max.
CAUTION
Connect the flange and unit with the flange connection screw (3)
regardless of whether the duct is connected to the air inlet side.
10
English
9.
9-1
ELECTRIC WIRING WORK
9-3
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 control box lid.
• For remote controller wiring details, refer to the installation
manual attached to the remote controller.
• All wiring must be performed by an authorized electrician.
• This system consists of multiple indoor units. Mark each
indoor unit as unit A, unit B..., and be sure the terminal board
wiring to the outdoor unit and BS unit are properly matched.
If wiring and piping between the outdoor unit and an indoor
unit are mismatched, the system may cause a malfunction.
• A ground fault circuit interrupter 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 wiring connected to the outdoor
unit, the capacity of the ground fault circuit interrupter and
switch, and wiring instructions.
• Be sure to ground the air conditioner.
• Do not connect the ground wiring to gas and water pipes,
lightning rods, or telephone ground wires.
• Gas pipes : might cause explosions or fire if gas leaks.
• Water pipes : 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.
9-2
SPECIFICATIONS FOR FIELD SUPPLIED
FUSES AND WIRE
ELECTRICAL CHARACTERISTICS
Model
Power supply
Hz
Fan motor
Volts Voltage range MCA
MFA
KW
FLA
FXMQ07PVJU
0.6
15
0.090
0.5
FXMQ09PVJU
0.6
15
0.090
0.5
FXMQ12PVJU
0.6
15
0.090
0.5
1.6
15
0.350
1.3
1.8
15
0.350
1.4
FXMQ30PVJU
2.3
15
0.350
1.8
FXMQ36PVJU
2.9
15
0.350
2.3
FXMQ48PVJU
3.4
15
0.350
2.7
FXMQ18PVJU
FXMQ24PVJU
60
208V Max. 253V
/230V Min. 187V
Power supply wiring
Model
Field fuses
Size
Remote controller wiring
Transmission wiring
Wire
Size
FXMQ07PVJU
FXMQ09PVJU
FXMQ12PVJU
FXMQ18PVJU
FXMQ24PVJU
FXMQ30PVJU
15A
Size must
comply
with local
codes.
Sheathed
wire
(2 wire)
AWG18-16
FXMQ36PVJU
FXMQ48PVJU
Allowable length of transmission wirings and remote controller
wiring are as follows.
(1) Outdoor unit – Indoor unit:
Max. 3280 ft (Total wiring length: 6560 ft)
(2) Indoor unit – Remote controller:
Max. 1640 ft
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 : 0.04
in. or more)
10. WIRING EXAMPLE AND HOW TO SET
THE REMOTE CONTROLLER
10-1 CONNECTING POWER SUPPLY, GROUND,
REMOTE CONTROLLER, AND TRANSMISSION
WIRING
(Remove the control box lid as shown below and connect each
wire.)
(1) Remove the control box lid.
MCA: Min. Circuit Amps (A); MFA: Max. Fuse Amps (A)
kW: Fan Motor Rated Output (kW); FLA: Full Load Amps (A)
Screw
(3 portions)
English
11
(2) Lay the wires in the control box through the wire inlet on the
side of the control box.
Conduit
(Field supply)
Lock nut
(Field supply)
(3) Follow the instructions below, and lay the wires in the control box.
Fix the wires with
clamp (8) to the
wire fixing bracket
provided to the
control box.
Transmission
wiring (Low voltage)
Remote controller
wiring (Low voltage)
Insert the cord into
the wire clips
provided with the
control box.
Conduit
(field supply)
Low-voltage wiring inlet
Transmission wiring
(Low voltage)
Remote controller wiring
(Low voltage)
Power supply wiring
(High voltage)
Ground wiring
(High voltage)
PROHIBITED
Insulation tube
(accessory (12))
Never connect the power
supply wiring.
High-voltage wiring inlet
P1 P2 F1 F2 T 1 T2
Power supply wiring (High voltage)
Earth wiring (High voltage)
CAUTION
• Do not lay the remote controller wiring or transmission wiring
along with the power supply wiring or other electric wiring in
the same route. Separate the remote controller wiring and
transmission wiring at least 2 in. from the power supply wiring
or other electric wiring, or otherwise malfunctions or failures
may be caused by external electric noise that may interfere
with the remote controller wiring and transmission wiring.
• For the installation and wiring of the remote controller, refer to
the remote controller installation manual provided with the
remote controller.
• For power supply wiring, refer to the wiring diagram as well.
• Be sure to connect the remote controller wiring and transmission wiring correctly to the right terminal block.
Ground L 1 L 2
Transmission wiring
(No polarity)
Connection method of
power supply terminals
(X1M)
Remote controller
wiring (No polarity)
Twist and fix the upper part so
that the wires will not drop out.
Fix the cord with the
clamp (8) to the wire
fixing bracket provided
to the control box.
Connection method of remote
controller terminals (X2M)
• If stranded wires are used, do
not solder the front end of the
wires.
Routing power supply wiring and transmission wiring
Let the power supply wiring with a conduit pass through one of
the holes on the side cover, and let the transmission wiring with
a conduit pass through another hole.
• For protection from uninsulated live parts, thread the power
supply wiring or the transmission wiring through the included
insulation tube and secure it with the included clamp.
Insulation tube
(accessory (12))
Power supply wiring
Clamp
or
(accessory (8)) Transmission wiring
(3in.)
When use the insulation tube.
• Cut off the insulation tube as need length.
Cut off
WARNING
Trim and lay the wiring neatly and attach the control box lid
securely.
An electric shock or fire may result if the control box lid catches
any wiring or the wires push up the lid.
12
English
(4) Put the control box lid, and wrap the wire sealing material
(Small) (10) around the conduit so as to block the wire
through holes.
Wire through holes
10-2 WIRING EXAMPLE
WARNING
Install a ground fault circuit interrupter.
The installation of a ground fault circuit interrupter is imperative
for the prevention of electric shocks and fire accidents.
No. 1 system: When using 1 remote controller for 1 indoor
unit
Power supply
single phase
60Hz 208/230V Outdoor unit
Power supply
single phase
60Hz 208/230V
L1 L2
IN/D
Power supply
single phase
60Hz 208/230V
L1 L2
L1 L2
L1 L2 P 1 P 2 F 1 F 2 T 1 T 2
L1 L2 P 1 P 2 F 1 F 2 T 1 T 2
OUT/D
F1 F2 F1 F2
CAUTION
• 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
control box.)
L1 L2 P 1 P 2 F 1 F 2 T 1 T 2
[Precautions for Power Supply Wiring]
Indoor unit A
P1 P2
Attach insulation sleeve
P1 P2
Remote controller
(option)
Remote controller
(option)
No. 2 system: For group control or use with 2 remote controllers
Electric wire
Be sure to follow the instructions provided below if the specified terminals cannot be used.
Otherwise, abnormal heat may be generated as a result
of the loosening of the wires.
Do not connect a
wire to the single
side only.
P1 P2
Remote controller
(option)
Round crimp-style terminal
Connect the wires
evenly.
Most
downstream
Indoor unit
Indoor unit B
• Connect round crimp-style terminals provided with insulation
sleeves to the terminal block for power supply.
Power supply
single phase
60Hz 208/230V
Power supply
single phase
60Hz 208/230V
Power supply
single phase
60Hz 208/230V
Outdoor unit
L1 L2
L1 L2
L1 L2
L1 L2 P 1 P 2 F 1 F 2 T 1 T 2
L1 L2 P 1 P 2 F 1 F 2 T 1 T 2
IN/D OUT/D
F1 F2 F1 F2
Do not connect
wires different
from each other in
diameter.
L1 L2 P 1 P 2 F 1 F 2 T 1 T 2
Indoor unit B
Indoor
unit A
P1 P2
• If stranded wires are used, do not solder the front end of the
wires.
• Connect proper wires securely and fix the wires so that external force will not be imposed on the terminals.
• Use an appropriate screwdriver to tighten the terminal
screws. The screw heads may be damaged if the screwdriver
is too small and the terminal screws will not be tightened
properly.
• Do not tighten the terminal screws excessively, or otherwise
the screw heads may be damaged.
• Refer to the table below for the required tightening torque values of the terminal screws.
Most downstream
indoor unit
Case of group control
Remote controller
(option)
P1 P2
P1 P2
Remote controller Remote controller
(option)
For use with 2
remote controllers
Note) There is not need to set the indoor unit
address when using group control.
(It is automatically set when the power
is turned on.)
Tightening torque (lbf·ft)
Terminal block for remote controller
and transmission wires
0.58 - 0.72
Terminal block for power supply
Ground wiring
0.87 - 1.06
English
13
No. 3 system: When including BS unit
Power supply
single phase
60Hz 208/230V
Outdoor unit
BS unit
(2) Set the main/sub switch on one of the remote controller
PCBs to sub. (Keep the switch of the other remote controller
PCB set to main.)
L1 L2
IN/D OUT/D
F1 F2 F1 F2
OUT/D IN/D
F1 F2 F1 F2
(Factory setting)
S
M
Remote controller
PC board
Only one remote
controller needs to be
changed if factory
settings have
remained untouched.
L1 L2 P1 P2 F1 F2 T1 T2
Indoor unit A
S
M
10-4 COMPUTERISED CONTROL (FORCED OFF
AND ON/OFF OPERATION)
P1 P2
(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.
Remote controller
(option)
[ PRECAUTIONS ]
F2
1. Make sure that the ground fault circuit interrupter is
designed to protect the air conditioner from ground faults,
overloads, and short-circuiting.
2. The remote controller wiring (P1 and P2) and transmission
wiring (F1 and F2) have no polarity.
10-3 CONTROL BY 2 REMOTE CONTROLLERS (Controlling 1 indoor unit by 2 remote controllers)
• Set one of the remote controllers to main and the other to sub
in the case of remote control with two remote controllers.
T1
T2
FORCED
OFF
Input A
Wire specification
Sheathed vinyl cord or cable (2 wire)
Gauge
AWG18-16
Length
Max. 328 ft
External terminal
Contact that can ensure the minimum applicable load of 15 V DC, 1 mA.
Switching Main/Sub
(1) Insert a
screwdriver into the clearance between the
grooves of the lower casing and the upper casing to remove
the upper casing. (2 grooves) (The remote controller PCB is
attached to the upper casing.)
Upper part of
remote controller
(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.
Lower part of
remote controller
Insert the screwdriver here and gently work
off the upper part of remote controller.
10-5 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.
11. FIELD SETTING
NOTE
• Before the test operation of the outdoor unit as explained in
12. TEST OPERATION, be sure to make the following field
settings as explained in 11. FIELD SETTING.
14
English
Make sure the control box lids are closed on the indoor and
outdoor units.
Field setting must be made from the remote controller in
accordance with the installation condition.
• Setting can be made by changing the “MODE NO.”, “FIRST
CODE NO.”, and “SECOND CODE NO.”.
• For setting and operation, refer to the “FIELD SETTING” in
the installation manual of the remote controller.
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 NO.” to “1”. Then set
“SECOND CODE NO.” to “01” for FORCED OFF and “02”
for ON/OFF OPERATION. (FORCED OFF at factory set)
With Wireless Remote Controller Used
Set the wireless remote controller address before using the
wireless remote controller.
For the setting method of the address, refer to the operation
manual provided with the wireless remote controller.
NOTE
• A “MODE NO.” is set on a group basis. To make a mode setting on a room unit basis or check the setting made, however,
set the corresponding mode number in the parentheses.
1. Settings for Optional Accessories
• In the case of connecting optional accessories, refer to
the operation manuals provided with the optional accessories and make necessary settings.
2. External Static Pressure Settings
Make settings in either method (a) or method (b) as
explained below. (FXMQ48PVJU cannot be selected
method (a). Please select method (b).)
(a) Use the airflow auto adjustment function to make settings.
Airflow auto adjustment: The volume of blow-off air is
automatically adjusted to the rated quantity.
(1) Check that power supply wiring to the air conditioner
is completed along with duct installation. If a closing
damper is installed in the air-conditioning system,
make sure that the closing damper is opened. Furthermore, check that the air filter as a field supply is
attached to the air passage on the suction side.
(2) If there are a number of air outlets and inlets, adjust the
throttles so that the airflow rate of each air outlet and
inlet will coincide with the designed airflow rate. At that
time, operate the air conditioner in “fan operation mode”.
To change the airflow rate, press and set the airflow
adjustment button of the remote controller to HH, H, or L.
English
(3) Make settings for airflow automatic adjustment. After
setting the air conditioner to “fan operation mode”,
stop the air conditioner, go to “FIELD SET MODE”,
select “MODE NO. 21” (11 in the case of group settings), set the setting “FIRST CODE NO.” to 7, and set
the setting “SECOND CODE NO.” to 03.
Return to normal mode after these settings, and press
the ON/OFF OPERATION button. Then the operation
lamp will be lit and the air conditioner will go into fan
operation for airflow automatic adjustment. Do not
adjust the throttles of the air outlets or inlets during
automatic adjustment of the air conditioner. After the
air conditioner runs approximately one to eight minutes, the air conditioner will finish airflow adjustment
automatically, the operation lamp will be turned OFF,
and the air conditioner will come to a stop.
Table 3
MODE NO.
FIRST CODE NO.
Setting contents
11 (21)
7
Airflow
adjustment
SECOND CODE NO.
01
02
03
OFF
Completion of
airflow adjustment
Start of airflow
adjustment
(4) After the air conditioner stops operating, check with
“MODE NO. 21” on an indoor unit basis that 02 is set
for the “SECOND CODE NO.” in Table 3. If the air
conditioner does not stop operating automatically or
the “SECOND CODE NO.” is not 02, repeat steps
from (3). If the outdoor unit is not turned ON, U4 or
UH as explained in Table 7 will be displayed. This display is not problematic, because this function is set
for the indoor unit. Continue setting the function.
After setting this function, be sure to turn ON the outdoor unit before the test operation of the outdoor unit.
If any other error is displayed, refer to Table 7 and the
operation manual provided with the outdoor unit and
check the defective point.
CAUTION
• If there is any change after airflow adjustment in the ventilation paths (e.g., the duct and air outlet), be sure to make airflow auto adjustment again.
• Consult your Daikin representative if there is any change in
the ventilation paths (e.g., the duct and air outlet) after the test
operation of the outdoor unit is finished or the air conditioner
is moved to another place.
(b) Select External Static Pressure with Remote Controller
Check that 01 (OFF) is set for the “SECOND CODE NO.”
in “MODE NO. 21” for airflow adjustment on an indoor
unit basis in Table 3. The “SECOND CODE NO.” is set to
01 (OFF) at factory set. Change the “SECOND CODE
NO.” as shown in Table 4 according to the external static
pressure of the duct to be connected.
(1) The “SECOND CODE NO.” is set to 07 (an external
static pressure of 0.4 inWG) at factory set. (FXMQ18
· 24 · 30 · 36 · 48PVJU)
The “SECOND CODE NO.” is set to 02 (an external
static pressure of 0.2 inWG) at factory set. (FXMQ07
· 09 · 12PVJU)
15
*1 The FXMQ18 · 24 · 30 · 36PVJU cannot be set to
0.12 inWG.
*2 The FXMQ07 · 09 · 12PVJU cannot be set to
0.44-0.80 inWG.
*3 The FXMQ48PVJU cannot be set to 0.12 inWG
and 0.60-0.80 inWG.
Table 4
External Static
Pressure
MODE NO.
FIRST
CODE NO.
SECOND
CODE NO.
0.12 inWG (*1)(*3)
01
0.20 inWG
02
0.24 inWG
03
0.28 inWG
04
0.32 inWG
05
0.36 inWG
06
0.40 inWG
07
0.44 inWG (*2)
13 (23)
06
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 outdoor unit.
If any of the items in Table 7 are displayed, there may be a
problem with the wiring or power, so check the wiring again.
Table 6
Remote controller display
08
0.48 inWG (*2)
09
0.52 inWG (*2)
10
0.56 inWG (*2)
11
0.60 inWG (*2)(*3)
12
0.64 inWG (*2)(*3)
13
0.72 inWG (*2)(*3)
14
0.80 inWG (*2)(*3)
15
“A8” lit
“C1” lit
Fan driver PCB of indoor unit ↔
indoor control PCB transmission
error.
“C6” lit
Improper combination of fan driver
PCB of indoor unit or setting failure
in control PCB type.
“U3” lit
Test operation of outdoor unit has
not been finished.
Table 7
Remote control display
“
” is lit up
3. Filter Sign Settings
• The remote controller is provided with an LCD that tells
the time of air filter cleaning.
• If the air conditioner is used in places with excessive dust,
change the “SECOND CODE NO.” as shown in Table 5.
The “SECOND CODE NO.” is set to 01 (standard) at factory set.
Table 5
Content
• There is a short circuit at the
FORCED OFF terminals (T1, T2)
“U4” is lit up
“UH” is lit up
• 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.
No display
• 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.
CAUTION
Keep in mind that a shortage of airflow quantity or water leakage
will result because the air conditioner will be operated outside
the rated range of airflow quantity if the external static pressure
is wrongly set.
Contents
Error in power supply voltage to
indoor unit.
CAUTION
Dirt
Time for
display
Standard
Approximately 2500
hours
Excessive
dust
Approximately 1250
hours
No display (*)
MODE
NO.
FIRST
CODE
NO.
SECOND
CODE
NO.
01
10 (20)
0
If interior finish work is continuing on completion of the test
operation of the air conditioner, explain the customer not to
operate the air conditioner until the interior finish work is completed for the protection of the air conditioner.
Otherwise, substances that will be generated from interior finish
work materials, such as paint and adhesive agents, may contaminate the air conditioner.
02
3
* Select “No display” under conditions in which the cleaning
display is not required, such as the time of regular maintenance.
16
English
1645 Wallace Drive, Suite 110
Carrollton, TX 75006
info@daikinac.com
www.daikinac.com
3PN06583-9P EM09A025
(0912) FS