Fujitsu AO*24LMAKL, Инструкция по эксплуатации

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SPLIT TYPE AIR CONDITIONER
INSTALLA TION INSTRUCTION
SHEET
(P AR T NO. 9374318070)
WARNING
This mark indicates procedures whic h, if impr operly perf ormed, might lead to the death or serious injury of
the user.
CAUTION
This mark indicates procedures whic h, if impr operly perf ormed, might possib ly result in personal harm to
the user, or dama ge to proper ty.
This air conditioner uses new refrigerant HFC (R410A).
The basic installation work pr ocedures are the same as conventional refrig erant models.
Howe ver, pa y careful attention to the follo wing points:
1 Since the working pressure is 1.6 times higher than that of con ventional refrigerant models, some of the piping and instal-
lation and service tools are special. (See the table belo w.)
Especially, when replacing a conventional refrig erant model with a new refrig erant R410A model, al ways replace the con-
ventional piping and flare nuts with the R410A piping and flare n uts.
2 Models that use refrigerant R410A ha ve a different c harging por t thread diameter to prevent err oneous char ging with con-
ventional refrigerant and f or safety . Theref ore, c heck bef orehand. [The char ging port thread diameter f or R410A is 1/2 UNF
20 threads per inch.]
3 Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrig erant models. Also, when
storing the piping, securel y seal the openings by pinching, taping, etc.
4 When char ging the refrigerant, take into account the slight chang e in the composition of the gas and liquid phases, and
alwa ys char ge from the liquid phase side whose composition is stab le.
Special tools for R410A
Copper pipes
It is necessary to use seamless copper pipes and it is desirable that the amount
of residual oil is less than 40 mg/10 m. Do not use copper pipes having a
collapsed, deformed or discolored portion (especially on the interior surface).
Otherwise, the expansion valve or capillary tube may become blocked with
contaminants.
As an air conditioner using R410A incurs pressure higher than when using
conventional refrigerant, it is necessary to choose adequate materials.
Thicknesses of copper pipes used with R410A are as shown in T able 1. Never
use copper pipes thinner than 0.8 mm (Nominal diameter is 3/8 in.), 1.0 mm
(Nominal diameter is 5/8 in.) even when it is available on the market.
For authorized ser vice personnel onl y.
WARNING
1 For the air conditioner to operate satisfactorily, install it as outlined in this installation instruction sheet.
2 Connect the indoor unit and outdoor unit with the air conditioner piping and cords a vailab le standards par ts. This installa-
tion instruction sheet describes the correct connections using the installation set av ailable fr om our standard par ts.
3 Installation work m ust be performed in accor dance with national wiring standards b y authoriz ed personnel onl y.
4 If refrigerant leaks while w ork is being carried out, ventilate the area. If the refrigerant comes in contact with a flame, it
produces a to xic gas.
5 Do not use an extension cor d.
6 Do not turn on the power until all installation w ork is complete.
This installation instruction sheet describes how to install the indoor unit onl y.
To install the outdoor unit, ref er to the installation instruction sheet included with the outdoor unit.
• • • • • Be careful not to scratch the air conditioner when handling it.
• • • • •
After installation, e xplain correct operation to the customer, using the operating man ual.
• • • • •
Let the customer keep this installation instruction sheet because it is used when the air conditioner is serviced or mo ved.
- Continued on back -
Refrige rant
R410A
Contents of chang e
Pressure is high and cannot be measured with a conventional gauge. T o prevent erroneous mixing of other
refrigerants, the diameter of each port has been changed.
It is recommended the gauge with seals –0.1 to 5.3 MPa (–76 cmHg to 53 kgf/cm
2
) for high pressure.
–0.1 to 3.8 MPa (–76 cmHg to 38 kgf/cm
2
) for low pressure.
T o increase pressure resistance, the hose material and base size were changed.
A conventional vacuum pump can be used by installing a vacuum pump adapter .
Special gas leakage detector for HFC refrigerant R410A.
Tool name
Gauge manifold
Charg e hose
Vacuum pump
Gas leakag e detector
Cassette Type
Ta ble 1 Thicknesses of Annealed Copper Pipes
WARNING
Install at a place that can withstand the weight of the in-
door and outdoor units and install positively so that the
units will not topple or fall.
CAUTION
1 Do not install where there is the danger of comb ustible
gas leakag e.
2 Do not install near heat sources.
3 If children under 10 y ears old ma y approac h the unit,
take preventive measures so that the y cannot reach
the unit.
Pipe
Pipe
Especially, the installation place is very important for the split type air
conditioner because it is very difficult to move from place to place after the
first installation.
Decide the mounting position together with the customer as follows:
The discharge direction can be selected as shown below.
Fig. 1
CAUTION
Since 2-way outlet as sho wn below causes perf ormance
problems, do not set it.
(4 directions) (3 directions)
100 mm (4") or more
Piping position
(2 directions )
100 mm (4") or more
100 mm (4") or more
(2 directions )
1,000 mm (39") or more
INDOOR UNIT
(1) Install the indoor unit on a place having a sufficient strength so that it
withstands against the weight of the indoor unit.
(2) The inlet and outlet ports should not be obstructed; the air should be
able to blow all over the room.
(3) Leave the space required to service the air conditioner (Fig. 2).
(4) The ceiling rear height as shown in Fig. 3.
(5) A place from where the air can be distributed evenly throughout the
room by the unit.
(6) A place from where drainage can be extracted outdoors easily .
(7) Install the unit where noise and vibrations are not amplified.
Fig. 2
This mechanism enables the cassette body to move 35 mm down-
ward and realizes installation to the space of 200 mm. No special
works and option is needed.
Fig. 3
You can select 2-way setting
Obstruction
Strong and durable ceiling
2,300 mm (91") or more
1,000 mm (39")
or more
1,000 mm (39") or more
Floor
(B) Slender setting (A) Standard setting
200 mm (7-7/8") or more 235 mm (9-1/4") or more
STAND ARD P A RT S
The following installation parts are furnished. Use them as required.
INDOOR UNIT ACCESSORIES
Name and Shape
Coupler heat insulation
Special nut A (large flange)
Special nut B (small flange)
T emplate
Blower cover insulation
Hook wire
Binder (small)
Remote
controller
T apping screw
(flush heads)
Remote controller cord
Q’ty
2
4
4
1
2
2
Application
For indoor side pipe joint
For installing indoor unit
For installing indoor unit
For ceiling hole cutting
For discharged air
For installing intake grille.
For fixing the remote
controller cord
For installing the remote
controller
For connecting the remote
controller
1
1
2
1
1
INSTALLA TION PROCEDURE
Install the air conditioner as follows:
INDOOR UNIT INST ALLA TION
WARNING
●
Install the air conditioner in a location which can with-
stand a load do at least five times the weight of the
main unit and which will not amplify sound or vibra-
tion. If the installation location is not str ong enough,
the indoor unit may fall and cause injuries.
●
If the job is done with the panel frame only, there is a
risk that the unit will come loose. Please take care .
REMOVING THE INTAKE GRILLE
(1)Push the intake grille pushbuttons (two places).
(2)Open the intake grille.
Fig. 4
OPEN
PUSH
(3)Remove the grille hinge wire.
Fig. 5
A
•
Pull up while pressing the B section (Fig. 6).
Fig. 6 P art A detail view Fig. 7 P art A section view
B
(4)Remove the intake grille.
REMOVING THE P ANEL FRAME
•
Pull up the corner sections (A) of the panel frame as shown in
Fig. 8 (4 locations).
Fig. 8 P art A detail view
Grille hinge wire
A
A A
A
B
•
Pull up in the direction of the arrow while holding down the C
section of Fig. 9 (4 locations).
Fig. 9 P art B detail view
Panel base
Fig. 10
C
Panel frame
CAUTION
Alwa ys remove the panel frame after remo ving the intake
grille.
1.POSITION THE CEILING HOLE AND HANGING
BOLTS
Fig. 11
940 mm ( 37")
890 mm ( 35-3/64")
750 mm (29-17/32")
750 mm (29-17/32")
Hanging bolt M10
Fig. 13
(A) Standard setting
Hole-in anchor
Hole-in plug
Co nc re te Insert
Drain pipe (I.D. 32 mm)
60 mm (2-3/8")
305.5 mm (12")
298.5 mm (11-3/4")
(2-3/4")
248.5 mm
(9-25/32")
70 mm
(3-15/16")
(5")
100 mm
235 mm (9-1/4")
127 mm
(B) Slender setting
Drain pipe (I.D. 32 mm)
60 mm (2-3/8")
305.5 mm (12")
11-3/4" (298.5 mm)
248.5 mm
(9-25/32")
70 mm
(2-3/4") (3-15/16")
(3-5/8")
100 mm
92 mm
200 mm (7-7/8")
3.BOD Y INSTALLA TION
[The ceiling rear height is 235 mm (9-1/4") or more.] [Standard setting]
[The ceiling rear height is 200 mm (7-7/8") or more.] [Slender setting]
(1) Install special nut A, then special nut B onto the hanging bolt (Fig. 14).
(2) Raise the body and mount its hooks onto the hanging bolt between
the special nuts (Fig. 14).
(3) Turn special nut B to adjust the height of the body (Fig. 14).
(4 ) Leveling
Using a level, or vinyl hose filled with water, fine adjust so that the
body is level.
WARNING
Perf orm final tightening by tightening the double n ut firmly.
Fig. 14
*Must fit tightly against ceiling
without any gap.
Special nut B
Hanging bolt
Special nut A
30 mm or
more
Hook
Ceiling
After installing the body,
tighten the nuts.
Fig. 15
* Allowable space between the unit and the ceiling 5 mm or less
INSTALLING THE P ANEL FRAME
Fig. 16
Vinyl hose
* With slender setting, turn the panel frame 90 ° as shown in the dia-
gram above.
Grille setting method has been changed at the marked posi-
tions on the panel frame and panel base.
Fig. 17
(A) Standard setting (B) Slender setting
Fig. 18
(Example)
Panel base
Panel frame
*90° T urn
Mark
Panel frame
No mark
2.HANGING PREP ARATIONS
•
Firmly fasten the hanging bolts as shown in Fig. 12 or by another method.
•
Install the hanging bolts at a place where they would be capable of
holding a weight of at least 50 kgf per bolt.
Fig. 12
2
INSTALLING DRAIN PIPE
CAUTION
Install the drain pipe in accordance with the instructions
in this installation instruction sheet and keep the area warm
enough to prevent condensation. Prob lems with the pip-
ing may lead to water leaks.
NOTE: Install the drain pipe.
• • • • •
Install the drain pipe with downward gradient (1/50 to 1/100) and so
there are no rises or traps in the pipe.
• • • • • Use general hard polyvinyl chloride pipe (VP25) [outside diameter
32 mm (1-1/4")] and connect it with adhesive (polyvinyl chloride) so
that there is no leakage.
• • • • •
When the pipe is long, install supporters.
• • • • • Do not perform air bleeding.
• • • • •
Always heat insulate the indoor side of the drain pipe.
• • • • •
When desiring a high drain pipe height, raise it up to 800 mm (31") or
less from the ceiling within a range of 150 mm (6") from the body. A
rise dimension over this range will cause leakage.
Fig. 19
Max. 800 mm (31")
Rise
Trap
Supporter
1.5 to 2.0 m (5 to 6.5 ft)
Air bleeding
150 mm (6") or less
3
CONNECTION PIPE REQUIREMENT
Ta ble 2
CAUTION
Install heat insulation around both the gas and liquid pipes.
Failure to do so ma y cause water leaks.
Use heat insulation with heat resistance above 120 °C. (Re-
verse c yc le model only)
In addition, if the humidity level at the installation location
of the refrigerant piping is e xpected to exceed 70%, install
heat insulation around the refrig erant piping. If the e x-
pected humidity level is 70-80%, use heat insulation that
is 15 mm or thicker and if the e xpected humidity exceeds
80%, use heat insulation that is 20 mm or thic ker.
If heat insulation is used that is not as thick as specified,
condensation may f orm on the surface of the insulation.
In addition, use heat insulation with heat conductivity of
0.045 W/(m·K) or less (at 20 °C).
ELECTRICAL REQUIREMENT
• • • • •
Always use H07RN-F or equivalent to the connection cord.
• • • • • Install the disconnect device with a contact gap of at least 3 mm nearby
the units (both indoor unit and outdoor unit).
• • • • •
Use pipe with water-resistant heat insulation.
1.FLARING
(1) Cut the connection pipe to the necessary length with a pipe cutter.
(2) Hold the pipe downward so that cuttings will not enter the pipe and
remove the burrs.
(3) Insert the flare nut (always use the flare nut attached to the indoor
and outdoor units respectively) onto the pipe and perform the flare
processing with a flare tool.
Use the special R410A flare tool, or the conventional flare tool.
When using the conventional flare tool, always use an allowance ad-
justment gauge and secure the A dimension shown in table 4.
Fig. 20
CONNECTING THE PIPING
CAUTION
1
Do not use mineral oil on flared part.
Prevent mineral oil fr om getting into the system as this
would reduce the lif etime of the units.
2 While welding the pipes, be sure to b lo w dr y nitrog en
gas through them.
4
Check if [L] is flared uniformly
and is not cracked or scratched.
Die
A
Pipe
Ta ble 4 Pipe outside diameter
L
Extend the pipe
by unwinding it.
Cut line
Pipe
Heat insulating pipe
Cutter
2.BENDING PIPES
The pipes are shaped by your hands. Be careful not to collapse them.
Fig. 21
Do not bend the pipes in an angle more than 90°.
When pipes are repeatedly bent or stretched, the material will harden,
making it difficult to bend or stretch them any more. Do not bend or stretch
the pipes more than three times.
When bending the pipe, do not bend it as is. The pipe will be collapsed. In
this case, cut the heat insulating pipe with a sharp cutter as shown in Fig.
22, and bend it after exposing the pipe. After bending the pipe as you
want, be sure to put the heat insulating pipe back on the pipe, and secure
it with tape.
Fig. 22
CAUTION
1 To prevent breaking of the pipe, av oid sharp bends.
Bend the pipe with a radius of curvature of 150 mm or
over .
2 If the pipe is bent repeatedly at the same place, it will
break.
3.CONNECTION PIPES
Indoor unit side
Fig. 23
CAUTION
1 Be sure to apply the pipe a gainst the port on the in-
door unit correctly. If the centering is improper , the flare
nut cannot be tightened smoothl y. If the flare n ut is
fo rced to turn, the threads will be damag ed.
2 Do not remove the flare n ut from the indoor unit pipe
until immediately bef ore connecting the connection
pipe.
Indoor unit
Small pipe
Large pipe
Holding spanner
Body side
T orque wrench
CAUTION
Hold the torque wrenc h at its grip, keeping it in the right
angle with the pipe as shown in Fig. 24, in or der to tighten
the flare nut correctl y.
T o prevent gas leakage, coat the flare
surface with alkylbenzene oil (HAB).
Do not use mineral oil.
Ta ble 5 Flare n ut tightening torque
Do not remove the cap from the connection pipe before connecting
the pipe.
CAUTION
Be sure to connect the larg e pipe after connecting the small
pipe completely.
When the flare nut is tightened properly by your hand, hold the body
side coupling with a separate spanner, then tighten with a torque wrench
(Fig. 24 ).
Fig. 24
(Hanging bolt position)
(Grille measurement)
(Hanging bolt position)
(Ceiling opening measurement)
* Appearance of slender setting
9.52 mm (3/8 in.)
15.88 mm (5/8 in.)
0.80 mm
1.00 mm
Pipe outside diameter Thickness
CAUTION
SELECTING THE MOUNTING POSITION
Small
Larg e
9.52 mm (3/8 in.)
15.88 mm (5/8 in.)
Diameter
Ta ble 3
Connection cord (m m
2
)
MAX.
MIN.
2.5
1.5
9.52 mm (3/8 in.)
15.88 mm (5/8 in.)
0 to 0.5
Pipe outside diameter
Dimension A (mm)
Flare tool for R410A, clutc h type
Flare nu t Tightening torque
9.52 mm (3/8 in.) dia.
15.88 mm (5/8 in.) dia.
33 to 42 N·m (330 to 420 kgf ·cm)
63 to 77 N·m (630 to 770 kgf ·cm)
4
Body
Be sure to overlap the
insulation
Coupler heat insulation
No gap
Coupler heat insulation
INSTALLING THE COUPLER
HEAT INSULA TION
After checking for gas leaks, insulate by wrapping insulation around the
two parts (large and small) of the indoor unit coupling, using the coupler
heat insulation.
After installing the coupler heat insulation, wrap both ends with vinyl tape
so that there is no gap.
Fig. 25
CAUTION
Must fit tightly a gainst body without an y gap.
• • • • •
Electric wire size:
9374318070_IM_front.p65 2/18/05, 11:01 AM 1