Daikin FCQ20EAVAK User manual
OPERATION MANUAL
E
00_CV_3P177429-10U.fm Page 1 Thursday, January 13, 2011 2:44 PM
SPLIT SYSTEM Air Conditioner
MODELS
FCQ20EAVAK
FCQ24EAVAK
FCQ36EAVAK
FCQ45EAVAK
READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLATION.
KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE.
INSTALLATION MANUAL
English
1
FCQ20EAVAK
FCQ24EAVAK SPLIT SYSTEM Air Conditioner Installation manual
FCQ36EAVAK
FCQ45EAVAK
CONTENTS
1. SAFETY PRECAUTIONS...............................................................................................1
2. BEFORE INSTALLATION ..............................................................................................3
3. SELECTING INSTALLATION SITE................................................................................6
4. PREPARATIONS BEFORE INSTALLATION .................................................................8
5. INDOOR UNIT INSTALLATION .....................................................................................9
6. REFRIGERANT PIPING WORK ..................................................................................10
7. DRAIN PIPING WORK .................................................................................................13
8. ELECTRIC WIRING WORK .........................................................................................16
9. INSTALLATION OF THE DECORATION PANEL..........................................................22
10. FIELD SETTING...........................................................................................................22
11. TEST OPERATION ......................................................................................................24
1. SAFETY PRECAUTIONS
Please read the these " SAFETY CONSIDERATIONS" carefully before installing air conditioning unit and be
sure to install it correctly. After completing the installation, make sure that the unit operates properly
during the start-up operation.
Please instruct the customer on how to operate the unit and keep it maintained.Also, inform customers that
they should store this installation manual along with the operation manual for
future reference.
Meaning of WARNING and CAUTION notices.
Both are important notices for safety. Be sure to follow them.
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 per-
sonal injury, which may be serious depending on the circumstances.
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”.
Do not attempt to install the air conditioner yourself. Improper installation may result in water leakage,
Install the air conditioner in accordance with the instructions in this installation manual.
When installing the unit in a small room, take measures against to keep refrigerant concentration from
exceeding allowable safety limits in the event of refrigerant leakage.
Contact the place of purchase for more information. Excessive refrigerant in a closed ambient can lead to
WARNING
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2
Install the air conditioner on a foundation strong enough to withstand the weight of the unit.
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 car-
Be sure to earth the air conditioner. Do not earth the unit to a utility pipe, lightning conductor or telephone
A high surge current from lightning or other sources may cause damage to the air conditioner.
Be sure to install the earth leakage breaker. Failure to install the earth leakage breaker may result in
Be sure to switch off the unit before touching any electrical parts. Touching a live part may result in elec-
tric shock.
-
nal connections or wires. Improper connections or securing of wires may result in abnormal heat build-up
When wiring the power supply and connecting the wiring between the indoor and outdoor units, position
the wires so that the control box lid can be securely fastened.
If refrigerant gas leaks during installation, ventilate the area immediately. Toxic gas may be produced if
After completing installation, check for refrigerant gas leakage. Toxic gas may be produced if the
stove or cooker.
Do not touch any refrigerant that leaks out of refrigerant piping joints or connections. Touching it may
cause frostbite.
Consult your local dealer regarding what to do in case of refrigerant leakage, when the air coditioner 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 leakage. Otherwise, this may lead to
an accident due to oxygen depletion.
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 televi-
sions or radios to prevent picture interference and noise.
In a domestic environment this product may cause radio interference in which case the user may be
required to take adequate measures.
Do not allow children to climb on the outdoor unit and avoid placing objects on the unit. Injury may result
if the unit becomes loose and falls.
Make sure to provide for adequate measure in order to prevent that the outdoor unit be used as a shelter
by small animals.
the customer to keep the area around the unit clean.
Install in a machine room that is free of moisture. The unit is designed for indoor use.
Disposal requirements
Dismantling of the unit, treatment of the refrigerant, of oil and of other parts must be done in accordance
with relevant local and national legislation.
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3
Do not install the air conditioner in the following locations:
1.
Plastic parts will deteriorate, parts may fall off and water leakage could result.
2. Where corrosive gas, such as sulphurous acid gas, is produced. Also areas that are rich in sodium
such as seashores.
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.
SPECIAL NOTICE OF PRODUCT
Refrigerant
The refrigerant R410A requires that strict Precautions be observed for keeping the system clean,
dry and tightly sealed.
A.Clean and Dry
Strict measure must be taken to keep impurities (including SUNISO oil and other mineral oils as well as
B.Tightly sealed
R410A contains no chlorine, does not destroy the ozone layer and so does not reduce the earth’s
protection against harmful ultraviolet radiation. R410A will contribute only slightly to the greenhouse
effect if released into the almosphere
must be greater than previously. Since R410A is a mixed refrigerant, the required additional refrigerant
must be charged in its liquid state. (If the system is charged with refrigerant in its gaseous state, due to
See the catalogue for indoor unit models that can be connected. (Normal operation is not possible when
2. BEFORE INSTALLATION
-
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
mate¬rial, 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.
In order to protect the indoor unit from damage, use packing materials to protect the unit after carrying
until the installation starts.
When selecting installation site, refer to the paper pattern.
Do not use the unit in locations with high salt content in the air such as beachfront property, locations
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1. ACCESSORIES
Do not dispose of any parts necessary for installation until the installation is completed.
for installation
for hanger
bracket
Name
4 pcs.1 pc.6 pcs.8 pcs.1 pc.1 pc.Quantity
For paper
pattern for
installation
Also used as
pack-ing material
Shape
manual
manual
Installation
guide
Sealing pad
Insulation
Name
1 pc.1 pc.1 pc.1 each1 each4 pcs.Quantity
pipe
Shape
2. OPTIONAL ACCESSORIES
The optional decoration panel and remote controller are required for this indoor unit.
Check that the decoration panel is prepared.
optional decoration panelunit model
BYCP125K-W1
FCQ20·24·36·45EAVAK Color : White
These are two types of remote controllers: wired and wireless. Select a remote controller according to
customer request and install in an appropriate place. (When installing, follow the instructions in the
Remote controller
BRC1C61/BRC1D61/BRC1E62wired type
BRC7F632Fwireless type
pipe
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FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE DURING CONSTRUCTION AND
CHECK AFTER INSTALLATION IS FINISHED.
CheckIf not properly done, what is likely to occurItems to be checked
The unit may drop, vibrate or make noise.
The unit may malfunction or the components
burn out.
Condensate water may drip.
Condensate water may drip.
The unit may malfunction or the components
burn out.
Does the power supply voltage correspond
The unit may malfunction or the components
burn out.
It may result in electric shock.
The unit may malfunction or the components
burn out.
Is something blocking the air outlet or inlet
(This can lead to malfunction or decreased
The refrigerant charge in the system is not
clear.
Are refrigerant piping length and additional
* Also review the “1. SAFETY PRECAUTIONS”
CheckItems to be checked
3. NOTE TO THE INSTALLER
looking at the manual.
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6
3. SELECTING INSTALLATION SITE
When opening the unit or moving it after opening, be sure to lift it by holding on to the hanger bracket without
parts. Please attach additional thermal insulation material to the unit body when it is believed that the relative
humid¬ity in the ceiling exceeds 80%, temperature 30 C.
Where optimum air distribution can be ensured.
Where nothing blocks air passage.
Where condensate can be properly drained.
Where the ceiling is strong enough to bear the indoor unit weight.
Where the false ceiling is not noticeably on an incline.
Where piping between indoor and outdoor units is possible within the allowable limit. (Refer to the
[Space required for installation]
H
Air
discharge
Air
inlet
Air
discharge
At least 1800mm
For installation
in high places
Floor surface
Fig. 1 Fig. 2
Model
FCQ20·24 256
FCQ36·45 298
CAUTION
stream, the ceiling might become dirty, so install as per Fig. 3.
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
If installing the wireless kit, the distance of the signal sent from the remote controller might be shorter if
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7
NOTE
1.
embedded lighting which does not protrude from the ceiling.
2. The space marked by the * symbol when the outlet vent is closed must be at least 500mm.
Ceiling height
This product can be installed in ceilings up to 4.2m high.
“10. FIELD SETTING” for details.
Air direction
The air direction shown in Fig. 4 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
Use suspension bolts 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 suspension bolts. (The spacing
[Air direction]
Fig. 4
Indoor
unit
Lighting
Ventilation
fan
Indoor
unit
At least 4000mm between indoor units
At least 2000mm
*At least
1500mm from
At least
1500mm
At least
1500mm
etc.
Pipes
Pipes
Pipes
Pipes
All-round air Four air
direction
Three air
direction
Two air
direction
Fig. 3
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8
4. PREPARATIONS BEFORE INSTALLATION
A
Refrigerant
piping
Suspension
False
ceiling
View as seen from A
Fig. 6
Hanger
bracket
125 – 130
Fig. 5
CAUTION
Reduce the distance between the unit and ceiling to 35 mm or below in order to maintain an overlapping
panel margin of 20 mm for the opening on the ceiling. If the distance exceeds 35 mm, attach a ceiling
material to the part marked
Fig. 7
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
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
False ceiling
50 – 100
Fig. 8
Use a hole-in anchor for existing ceilings, and
supplied parts for new ceilings to reinforce the
ceiling to bear the weight of the unit. Adjust
proceeding further.
NOTE
Frame
Ceiling material 35
35
20
20
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9
5. INDOOR UNIT INSTALLATION
parts designated by our company.
-
Field supply
Hanger bracket
Tighten
Insert
[Securing the hanger bracket] [Securing the washer]
Fig. 9 Fig. 10
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.
Center of main unit
Center mark of
main unit
Center of ceiling opening
Fig. 11
[Installation of paper pattern for installation]
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10
Adjust the unit to the right position for installation.
(Refer to
the lower ceiling surface.
Apply the short
side of the cut-
out section.
Lower ceiling
surface
Underside of
the unit
Fig. 12
Check the unit is horizontally level.
CAUTION
Level Vinyl tube
[Maintaining horizontality]
Fig. 13
washer from falling and tighten the upper nut.
Install the indoor unit temporarily.
Adjust the height and position of the unit. (Refer to “4.
and
6. REFRIGERANT PIPING WORK
‹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
‹Also, in cases where the temperature and humidity of the refrigerant piping sections might exceed 30°C or
insulating material.
‹ Be sure to check the type of R410A refrigerant to be used before doing any work. (Using an incorrect
CAUTION
following when installing.
leakage may result.
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11
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.
Torque wrench
Spanner
Pipe union
Flare nut
Fig. 14
The outdoor unit is charged with refrigerant.
Be sure to use both a spanner and torque wrench together, as shown in
the Torque wrench drawing, when connecting or disconnecting pipes to/
from the unit.
Coat here with ester or ether oil.
Fig. 15
CAUTION
Do not let oil get on the screw holders on the pipe holding plate. Oil can weaken the screw holders.
Refer to “Table 1” to determine the proper tightening torque.
Table 1
Flare
Flare dimensions
Pipe size
A
R0.4-0.8
12.8 – 13.232.7 – 39.9
19.3 – 19.761.8 – 75.4
CAUTION
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.
Recommended arm length of toolFurther tightening anglePipe size
Approx. 200mm60 to 90 degrees
Approx. 300mm30 to 60 degrees
45°±2°
90°±2°
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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.
Make absolutely sure to execute heat insulation works on the pipe-connecting section after checking gas
Gas Piping Insulation Procedure
Flare nut connection
Piping insulation
Attach to base
Wrap over from the
base of the unit to
nut connection.
Main unit
Tighten the part other than
the piping insulation material.
Piping insulation
material (Field
Turn seams up
Sealing pad
Liquid Piping Insulation Procedure
Flare nut connection
Turn seams up
Piping insulation
material (Field
Tighten the part other than the
piping insulation material.
Sealing pad
Wrap the insulator
around the part
from the root.
Piping insulation
Attach to base
Main unit Pipe holding
plate screw
Gas piping
Liquid piping
Fig. 16
Refrigerant
piping Part to
bebrazed
Nitrogen
TapingHands
valve
Pressure-reducing
valve
Nitrogen
Fig. 17
Nitrogen should be set to 0.02MPa with a pressure-reducing valve if brazing while inserting nitrogen into
the piping.
When the airtight test is performed for the indoor unit and inter-unit piping after indoor unit installation, be
sure to refer to the installation manual for the indoor unit or technical guide for airtight pressurization and
refrigerant piping installation.
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13
Shortage of refrigerant due to air purge or losing the additional refrigerant charging may cause the failure
Be sure to refer the installation manual or the engineering guide for the outdoor unit at the refrigerant
piping work.
CAUTION
Do not use anything such as the oxidation inhibitor when brazing. (Residues may result in the clogging
7. DRAIN PIPING WORK
Rig drain piping
As for drain work, perform piping in such a manner that water can be drained properly.
Keep the drain pipe short and sloping downwards at a gradient of at least 1/100 to prevent air pockets
from forming.
CAUTION
Water accumulating in the drain piping can cause the drain to clog.
To keep the drain pipe from sagging, space hanging wires every 1 to 1.5m.
WRONG Fig. 18-2
Supporting hanger 1/100 gradient or more
GOOD
1–1.5m
-
der will become 4mm or less.
Drain socket
Stage part
VP25 side
VP20 side
Tape part
Fig. 18-1
Fig. 19
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14
Install the drain raising pipes at a height of less than 675mm. The drain pump of this unit has a high
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.
Level
or tilted
slightly
up
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
the drain pump stops.
Metal clamp
Raising section
Drain raising pipe
Ceiling slab
Supporting hanger
Adjustable
1 – 1.5m
175mm
850mm
Fig. 20
If converging multiple drain pipes, install according to the procedure shown below.
Converging drain pipes
Keep the drain pipe sloping downward
at a gradient of at least 1/100 to prevent
air pockets from forming.
Water pooling in the drainage pipe can
cause the drain to clog.
Fig. 21
0 – 675mm
Select converging drain pipes whose gauge is suitable for the operating capacity of the unit.
WHEN ELECTRIC WIRING WORK IS FINISHED
thermal insulation of the drain socket.
WHEN ELECTRIC WIRING WORK IS NOT FINISHED
CAUTION
the test run is complete.
connections No.1 and No.2 on the terminal block for wiring the units. Do not connect to No.3 of the
When carrying out wiring work around the control box, make sure none of the connectors come undone.
Be sure to attach the control box lid before turning on the power.
Put approximately 1L of water slowly into the drain pan through the outlet on the left 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.
(
(
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15
When the power is turned on, the drain pump will operate and you can check the draining of water
insulate the drain socket.
Do not touch drain pump
, turn off the power and remove the power supply.
Attach the control box lid as before.
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.
Drain sockets
(Check the
Drain pump
location
(Use this outlet to drain water from
Plastic watering can
(Tube should be
At least
100mm
<Adding water through air discharge outlet>
[Method of adding water] Fig. 22
123
123
Transmission
wiring terminal
block
Power supply
single phase 230V
Earth
wire
Control box lid
Fig. 23
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16
Be sure to install insulation in the locations below as there is a risk that condensation build-up could
cause water leakage.
Drain piping located indoors
Drain socket
from above.
Sealing pad - Large
Be sure to lay the
Do not have the clearance.
Fig. 25
Large sealing
Turn seams up
Fig. 24
8. ELECTRIC WIRING WORK
WIRING INSTRUCTIONS
Electric wiring work must be conducted by electrician authorized by power companies. (Only licensed
All wiring must be performed by an authorized electrician.
Be sure to install the earth leakage breaker to the outdoor unit.
Be sure to earth the air conditioner.
Do not connect the earth wire to gas pipes, plumbing pipes, lightning rods, or telephone earth wires.
Plumbing: no earth effect if hard vinyl piping is used.
Telephone earth wires or lightning rods: might cause abnormally high electric potential in the earth
during lighting storms.
For electric wiring work, refer to also “WIRING DIAGRAM” attached to the unit body.
Never connect the power supply wire to the terminal block for remote controller wire, or otherwise the
entire system may be damaged.
For remote controller wiring details, refer to the installation manual attached to the remote controller.
Do not touch the printed circuit board ASSY during the wiring work. Otherwise, it may cause damage.
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17
Wiring the units and earth wire Remove the control box lid and connect wires of matching number to the
Remote controller cords Remove the control box lid and pull the wires inside through the hole and con-
Outdoor unit Indoor unit
Match both numbers.
<Connecting wiring between units>
[Processing method of wiring through hole]
Wiring through hole
Transmission wire,
earth wire or remote
controller wire
Sealing pad -
Putty or thermal
insulation material
Fig. 26
Protect the wire and the wiring through hole area for
wirings of the transmission, earth and the remote
controller in order to prevent the intrusion of water
and small animals into the air conditioner after the
system is wired.
each one to the respective wiring lines.
gaps in the through holes with putty or insulation
-
sects from entering the unit from outside. (If any do
get in, they could cause short circuits in the control
Outside the machine, separate the weak wiring
that they do not pass through the same place to-
gether. Proximity may cause electrical interference,
malfunctions, and breakage.
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18
123
Transmission wiring Wiring
through-holes
Earth wire
CAUTION
[Wiring for remote controller]
Sheath for the remote
controller wiring
Approx.
7 mm
After
peeling the
vinyl, twist
wires. 70 - 90 mm
(Sheath margin
R10 or
more
an extra part of the
clamp should be cut.
10 - 15 mm
Transmission
wiring terminal
Remote
controller
wiring
Wiring
through-holes
Remote controller
wiring terminal
block
Control box lid
Electrical Wiring Diagram
Nameplate
Clamping position
Secure the ground wire
and transmission wiring
with both edges aligned.
Earth wire
Cut off any
excess material
after tightening
the transmission
wiring and
earth wire
together.
Tansmission
wiring sheath
Earth
wire
Earth terminal
80~100mm
10~15mm
Fig. 27
CAUTION
Shape the wires and attach the control box lid securely so that wires will not be caught. (Caught wires
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19
Use a round crimp-style terminal for connection to the power supply terminal block.
Attach insulation sleeve
Round crimp-style terminal
Electric wire
In case it cannot be used due to unavoidable reasons, be sure to observe the following instructions.
Connect wires of the
same gauge to both
Do not connect wires of
the same gauge to one
Do not connect wires
of different gauges.
Good Wrong Wrong
Fig. 29
so that external forces are not applied to the terminals.
If the strand wire is used, do not solder it.
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.
0.79 to 0.97Terminal block for remote controller
1.18 to 1.44Terminal block for wiring the units
1.18 to 1.44Earth terminal
Table 2
LengthSize(mm2Wire spec.Type
–2.5
Wiring the units
Shield wire
Max.500m*0.75-1.252 coresRemote controller
cord
*Total length of system wiring if using group control.
Fig. 28
This manual suits for next models
3
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