Technibel CA 250 X5TA Series User manual

EG
I
F
37.4140.218.0
INSTALLATION MANUAL ¥ MANUALE DÕINSTALLAZIONE
MANUEL DÕINSTALLATION ¥ AUFSTELLUNGS-HANDBUCH
MANUAL DE INSTALACION ¥ EGXEIRIDIO TOPOQETHSHS
GENNAIO 2000
Split system air conditioner ¥ Condizionatore d'aria split system
Climatiseurs split system ¥ Split-klimagerŠt
Acondicionador de aire de consola partida sistema split ¥ DIAIRO Y MENES MONADES KLIMATISMO Y
CA 250 X5TA*
CA 360 X5TA*
CA 480 X5TA*
SPA 250 X5TA*
SPA 360 X5TA*
SPA 480 X5TA*

1
Dear User
Thank you for selecting this product and we welcome you to the growing family of
satisfied products owners.
Like all products, it has been designed carefully and manufactured under strict quality
control.
We firmly believe that our products will give full satisfaction to users through proper
operation and maintenance.
Please read this manual, and be sure to keep it handy for your reference.
MODEL COMBINATIONS
CONTENTS
SEMI-CONCEALED MODEL ÒCAÓ
COOLING ONLY VERSION
INDOOR UNIT OUTDOOR UNIT
CA 250 X5 GR 250 X5
GR 250 X7
CA 360 X5 GR 360 X7
CA 480 X5 GR 480 X7
CEILING-MOUNTED MODEL ÒSPAÓ
COOLING ONLY VERSION
INDOOR UNIT OUTDOOR UNIT
SPA 250 X5 GR 250 X5
GR 250 X7
SPA 360 X5 GR 360 X7
SPA 480 X5 GR 480 X7
Conbine indoor and outdoor units as listed above.
IMPORTANT
Please Read Before Starting
1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3
1-1. Tools required for Installation (not supplied)
1-2. Accessories Supplied with Unit
1-3. Type of copper Tube and Insulation Material
1-4. Additional materials required for Installation
1-5. Tubing Lenght
2. INSTALLATION SITE SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6
Indoor Unit
Outdoor Unit
3. HOW TO INSTALL THE INDOOR UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8
■4-WAY AIR DISCHARGE SEMI-CONCEALED TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8
3-1. Suspending the Indoor Unit
3-2. Preparation for Suspending
3-3. Burying Inside the Ceiling
3-4. Installing the Drain Piping
3-5. Checking the Drainage
■CEILING-MOUNTED TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10
3-6. Suspending the Indoor Unit
3-7. Duct for fresh air
3-8. Installing the drain piping
4. HOW TO INSTALL THE OUTDOOR UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13
4-1. Removing the Protective Spacer for Transportation
4-2. Installing the Outdoor Unit
4-3. Tubing Direction
5. ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14
5-1. General Precautions on Wiring
5-2. Recommended Wire Lenght and Wire Diameter for Power Supply System
5-3. Wiring System Diagrams
5-4. Examples of incorrect wiring
5-5. How to connect wiring to the terminal
EG

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6. HOW TO INSTALL THE REMOTE CONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 17
6-1. Wireless Remote Control Unit
7. HOW TO PROCESS TUBING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 18
7-1. Connecting Tubing Sides
7-2. Connecting Tubing between Indoor and Outdoor Unit
7-3. Insulation of Refrigerant Tubing
7-4. Taping the Tubes
7-5. Finishing the Installation
8. AIR PURGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 20
9. HOW TO INSTALL THE CEILING PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 21
■4-WAY AIR DISCHARGE SEMI-CONCEALED TYPE page 21
9-1. Before Installing the Ceiling Panel
9-2. Installing the Ceiling Panel
9-3. When Removing the Ceiling Panel for Servicing
10. TEST RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 23
10-1. Preparing for Test Run
10-2. Performing Test Run for models with wireless control
11. PUMP DOWN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 24
IMPORTANT PLEASE READ BEFORE STARTING
This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part
of your job to install or service the system so it operates safely and efficienly.
For safe installation and trouble-free operation, you must:
¥ Carefully read this instruction booklet before beginning.
¥ Follow each installation or repair step exactly as shown.
¥ Observe all local, state, and national electrical codes.
¥ Pay close attention to all warning and caution notices given in this manual.

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WARNING ¥ This symbol refers to
a hazard or unsafe
practice which can
resuklt in severe
personal injury or
death.
IN CASE OF IMPROPER INSTALLATION
The manufacturer shall in no way be responsible for improper
installation or maintenance service, including failure to follow
the instruction in this document.
When Transporting
Be careful when pocking up and moving the indoor and outdoor
units. Get a partner to help, and bend your knees when lifting
to reduce strain on your back. Sharp edges or thin aluminum
fins on the air conditioner can cut your fingers.
When Installing
ÉIn a Room
Properly insulate any tubing run inside a room to prevent
ÒsweatingÓ that can cause driping and water damage to walls
and floors.
ÉIn Moist or Uneven Locations
Use a raised concrete pad or concrete blocks to provide a
solid, level foundation for the outdoor unit. This prevents water
damage and abnormal vibration.
ÉIn an area with High Winds
Securely anchor the aoutdoor unit down with bolts and a metal
frame. Provide a suitable air baffle.
When Connecting Refrigerant Tubing
¥ Executive enough ventilation in case refrigerant gases leak
during operations. Be careful that the contact of the
refrigerant gases with the flare will cause the generation of
poisonous gases.
¥ Keep all tubing runs as short as possible.
¥ Use the flare method for connecting tubing.
¥ Apply refrigerant lubricant to the matching surfaces of the
flare and union tubes before connecting them, then tighten
the nut with a torque wrench for a leak-free connection.
¥ Check carefully for leaks before starting the test run.
When Servicing
¥ Turn the power OFF at the main power box (mains) before
opening the unit to check or repair electrical parts and wiring.
¥ Keep your fingers and clothing away from any moving parts.
¥ Clean up the site after you finish, remembering to check
that no metal scraps or bits of wiring have been left inside
the unit being serviced.
CAUTION ¥ This symbol refers to
a hazard or unsafe
practice which can
resuklt in personal
injury or product or
property damage.
SPECIAL PRECAUTION
1. GENERAL
¥ ELECTRICAL SHOCK CAN CAUSE SEVERE
PERSONAL INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED ELECTRICIAN
SHOULD ATTEMPT TO WIRE THIS SYSTEM.
When Wiring
¥ Do not supply power to the unit until all wiring and tubing are
completed or reconnected and checked.
¥ Highly dangerous electrical voltage are used in this system.
Carefully refer to the wiring diagram and these instruction
when wiring. Improper connections and inadequate
grounding can cause accidentaly injury or death.
¥Ground the unit following local electrical codes.
¥ Connect all witing tightly. Loose wiring may cause
overheating at connection points and a possible fire hazard.
This booklet briefly outlines where and how to install the air
conditioning system. Please read over the entire set of
instructions for the indoor and outdoor units and make sure all
accessory parts listed are with the system before beginning.
1-1. Tools Required for Installation (not
supplied)
1. Standard screwdriver
2. Phillips head screwdriver
3. Knife or wire stripper
4. Tape measure
5. Level
6. Sabre saw or key hole saw
7. Hacksaw
8. Core bits
9. Hammer
10. Drill
11. Tube cutter
12. Tube flaring tool
13. Tourque wrench
14. Adjustable wrench
15. Reamer (for deburring)
1-2. Accessories Supplied with Unit
See Table 1-1 to 1-3.
Table Type
1-1 4-Way AirDischarge Semi-Concealed
1-2 Ceiling-Mounted
1-3. Type of Copper Tube and Insulation
Material
To purchase these material from a local source, you will need:
1. Deoxidized annealed copper tube for refrigerant tubing.
2. Foamed polyethylene insulation for 15.88 mm (5/8Ó) or
19.05 mm (3/4Ó) O.D. copper tubes as required to precise
length of tubing. Wall thickness of the insulation should
be not less than 8 mm.
3. Use insulated copper wire for field wiring. Wire size varies
with the total length of witing. Refer to Section 5. Electrical
Wiring for details.

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1-4. Additional Materials Required for
Installation
1. Refrigeration (armored) tape
2. Insulated staples or clamps for connecting wire
(See your local codes.)
3. Putty
4. Refrigeration tubing lubricant
5. Clamps or saddles to secure refrigerant tubing
CAUTION ¥ Check local electrical
codes and regulations
before obtainig wire.
Also, check any
specified instructions
or limitations.
Part Name Figure QÕty Remarks
Full-scale installation diagram 1 For determinig suspension bolt pitch
Flare insulator 2 For wide and narrow tubes
Installation gauge 1 For adjusting the unit position
Insulating tape 1 For wide tube flare nuts
Hose band 2 For Securing drain hose
Packing 1 For drain joint
Dran insulator 1 For drain joint
Drain hose 1 For drain hose joint
Sealing putty 1 For sealing recessed portion of power supply
Table 1-1. 4-Way Air Discharge Semi-Concealed
Table 1-2. Ceiling-Mounted
(White-for
insulating)
Part Name Figure QÕty Remarks
Special washer 4 For suspending indoor unit from ceiling
Drain insulator 1 For drain hose joint
Flare insulator 1 Set For drain narrow tube joints
Drain hose clamp 4 For drain hose joint
2 For rubbe cao (in case of using left side drain pipe)
Insulating tape 2 For wide flare joint
Vinyl clamp 8 For ends of flare insulator
Sealing insulator
1 For sealing top face
1 For sealing rear face
Full-scale installation diagram 1 For determining suspension bolt pitch
Sealing putty 1 For sealing recessed portion of power supply
OwnerÕs manual 1 Ð
Drain hose 1 For drain hose joint
White
(heat-resisting)
T10
T3T5

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1-5. Tubing Length
¥ Refrigerant tubing between the indoor and outdoor
units shall be kept as short as possible
¥ The length of the refrigerant tubes between the
indoor and outdoor units are limited by the elevation
difference between the two units. During tubing
work, try to make both the tubing length (L) and
the difference in elevation (H) as short as possible.
Refer to Table 1-4 for the details.
Installation Example 1
INDOOR
UNIT
Tubing length (L)
OUTDOOR
UNIT
Elevation difference (H)
Table 1-4.
250 type
6.35 (1/4)
15.88 (5/8)
40
40
25
15
a) 25
2.4
Tubing size Narrow tube mm(in.)
outer diameter Wide tube mm (in.)
Limit of tubing length (m)
Outdoor unit is placed upper (m)
Limit of elevation
difference between
the two units Outdoor unit is placed lower (m)
Max. allowable tubing length at shipment (m)
Required additional refrigerant*
1
(g/m)
Refrigerant charged at shipment (kg)
360 type
9.52 (3/8)
19.05 (3/4)
50
50
30
15
b) 80
4.0
480 type
9.52 (3/8)
19.05 (3/4)
50
50
30
15
b) 80
4.3
Models
Tubing Data
No additional charge of compressor oil is necessary.
*1 If total tubing length becomes a) 15 to 40 b) 15 to 50 (max), charge additional refrigerant (R22) by a) 25 or b) 80 g/m.
Table 1-3 Accessories for the Wireless
Remote Control Unit

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2. INSTALLATION SITE SELECTION
AVOID:
¥ ares where leakage of flammable gas may be expected.
¥ places where large amounts of oil mist exist.
¥ direct sunlight.
¥ location where nearby heat sources may affect performance
of the unit.
¥ locations where nearby external air may enter the room
directly. This may cause ÒsweatingÓ in the air discharge
ports, causing them to spray or drip.
¥ location where the remote controller will be splashed with
water or affected by dampness or humidity.
¥ installing the remote controller behind curtains or furniture.
DO:
¥ select an appropiate position from which every corner of the
room can be uniformly cooled.
¥ select a location where the ceiling is strong enough to support
the weight of the unit.
¥ select a location where tubing and drain pipe have the
shortest run to the outside.
¥ allow room for operation and maintenance as well as
unrestricted ai flow around the unit.
¥ install the unit within the maximum elevation difference (H)
above or below the outdoor unit and within a total tubing
length (L) from the outdoor unit as detailed in table 1-4.
¥ allow room for mounting the remote controller about 1 moff
the floor, in an area that is not in direct sunlight nor in the
flow of cool air from the indoor unit.
INDOOR UNIT
NOTE
Air delivery will be degraded if the distance from the floor to
the ceiling is greater than 3 m.
Ceiling-Mounted Type 4-Way Semi-Concealed Type
Ceiling
Wall
25 cm min.
Air
discharge
Side view
Air intake
30 cm
min.
25 cm min.
NOTE The rear of the indoor unit can be installed
flush against the wall.
Front view
1 m
1 m
1 m
1 m
1 m

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Min. 1 m Min. 1 m Min. 1 m Min. 1 m
Min. 20 cm
Min. 35 cm
Min. 35 cm
Min. 30 cm
Min. 30 cm
Air
discharge
chamber
Min. 1.5 m
Min. 30 cm
Min. 35 m
Min. 20 cm
In case of multiple installations
■ Unit spacing if air discharge chamber is not used. ■ Unit spacing when air dscharge chamber is used.
* If you would like to make the separation smaller on the
air discharge side, use an air discharge chamber.
* Your can install any number of units side-by-side.
* Only up to 3 units can be install side-by-side under the
above conditions. the next group must be spaced at
least 30 cm away from the first group.
AVOID:
¥ heat source, exhaust fans, etc. (Fig. 2-1).
¥ damp, humid or uneven locations.
DO:
¥ choose a place as cool as possible.
¥ choose a place that well ventilated and autside air
temperature does not exceed maximum 45 ¡c constantly.
¥ allow enough room around the unit for air intake/exhaust
and possible maintenance. (Fig. 2-2).
¥ provide a solid base; about 15 cm above ground level to
reduce humidity and possible water damage in unit and
drecrease service life. (Fig. 2-3).
¥ use lug bolts or equal to bolt down unit, reducing vibration
and noise.
OUTDOOR UNIT
Air in Air in
Min. 15 cm
Air
discharge
Anchor bolts
(4 pieces)
Model Min. (cm)
250 type 10
360, 480 type 20
Fig. 2-3
Hot air
Out-
door
unit
Exhaust fan
Heat
sorce
Fig. 2-1
Fig. 2-2
Min.
1 cm Min.
1 cm
Min.
2 m
Ground
Min.
2 m
Obstacle
Air
dis-
charge
Min. 50 cm
Obstacle above
Table 2-1 Dimension
A
➩

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■4-WAY AIR DISCHARGE SEMI-CONCEALED TYPE
EG
3-1. Suspending the Indoor Unit
This unit uses a drain pump. Use a carpenterÕs level to chack
that the unit is level.
3-2. Preparation for Suspending
(1) Fix the suspension bolts securely in the ceiling using
the method shown in the drawings (Figs. 3-1 / 3-2 /
3-3), by attaching them to the ceiling support structure,
or by any other method that insures that the unit will
be securely and safely suspended.
(2) Follow Fig. 3-2 and Table 3-1 to make the holes in the
ceiling.
3-3. Burying inside the Ceiling
(1) When placing the unit inside the ceiling, determine the
pitch of the suspension bolts using the provided full-
scale installation diagram. (Fig. 3-4).
Tubing and wiring must be laid inside the ceiling when
suspending the unit. If the ceiling is already constructed,
lay the tubing and wiring into positiion for connection
to the unit before placing the unit inside the ceiling.
(2) The length of suspension bolt must be so that the
distance between the botton of the bolt and the botton
of the ceiling is more than 60 mm as shown in Fig. 3-4.
(3) Thread the 2 hexagonal nuts and washers (field supply)
onto the 4 suspension bolts as shown in Fig. 3-5.
Use 2 sets of nuts and washers (upper and lower), so
that the unit with not fall off the suspension lugs.
(4) Remove the protective cardboard used to protect the
fan parts during transport.
(5) Adjust the distance between the unit and surface of
the ceiling (48 mm) using the supplied installation
gauge. (Fig. 3-4).
Model A B
250 type 820 730
360, 480 type 1110 1020
3) Determine the pitch of the suspension bolts using the
provided full-scale installation diagram. The diagram
and table (Fig. 3-3 and Table 3-3) show the relationship
between the position of the suspension fitting, the unit,
and the panel.
Model ABCDE
250 type 150 200 255 298 125
360, 480 type 165 235 285 328 125
Hole-in-anchor
Hole-in-plug Concrete Insert
Suspension bolt (M10 or 3/8ÕÕ)
(field supply)
A (ceiling opening dimension)
B (suspension bolt itch)
Electrical component box
Refrigerant
tubing side
Drain hose
side
Refrigerant tubing joint (narrow tube side)
Refrigerant tubing joint (wide tube side)
Drain inspection port
Suspension lug
Power supply inlet
Unit: mm
820 (ceiling opening dimension)
590 (suspension bolt pitch)
Fig. 3-1
Fig. 3-3
Fig. 3-2
Full-scale installation drawiong
(provided)
Nuts and washers
(2 sets)
Suspension bolt
Suspension lug
Uppper
Lower
More than 60 mm
48 mm
Fig. 3-4
Fig. 3-5
3. HOW TO INSTALL THE INDOOR UNIT
Table 3-1
Table 3-2
Unit: mm
Unit: mm

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Fig. 3-15
CAUTION
¥ Do not install an air bleeder, as this may cause water
to spray from the drain tube outlet. (Fig. 3-9)
¥ If it is neccesary to increase the height of the drain
pipe somewhat, the portion directly after the connection
port can be raised a maximum of 25 cm. Do not raise
it any higher than 25 cm, as this could reasult in water
leaks. (Fig. 3-10)
¥ Do not install pipe with an upward gradient from the
connection port. It will cause the drain water to flow
backwards and leak when the unit is stopped.
(Fig. 3-11)
¥ Do not apply force to the piping on the unit side when
connecting the drain pipe. The pipe should not be
allowed to hang unsupported from its connection to the
unit. Fasten the pipe to a wall, frame, or other support
as close to the unit as possible. (Fig. 3-12)
¥ Be sure to provide insulation for any drain piping
installed indoors.
30 cm or less (as short as possible)
25 cm or less
Upward gradient
Support
pieces
Fig. 3-10
Fig. 3-11
Fig. 3-12
3-4. Installing the Drain Piping
(1) Prepare a standard hard (PVC) pipe (O.D. 32 mm) for
the drain and use the accessory drain hose and hose
band to prevent water leaks.
The PVC pipe must be purchase separately.
The transparent part allows you to check drainage.
(Fig. 3-6).
Transparent part for
checking drainage Hose band (supplied)
Hard PVC pipe
pipe (not supplied)
Drain hose (supplied)
Packing (supplied)
CAUTION
¥ Tighten the hose band firmly after the supplied drain
hose has been inserted to touch the ends of both of the
connection pipes, as shown in Fig. 3-7.
¥ Do not use an adhesive when connecting the supplied
hose.
Reasons:
1. It may cause water to leak from the connection. Sin-
ce the connection is slippery just after the adhesive has
been applied, the pipes easily slip off.
2. The pipes cannot be removed when maintenaces is
needed.
¥ Do not bend the supplied drain hose 90¡ or more. The
hose may slip off.
¥ Align the hose bands with the ends of the hoses. Ti-
ghten the hose bands firmly. PLease make sure that the
stopper is not covered by the hose band, as shown in
Fig. 3-7.
CAUTION
¥ Tighten the hose clamps so their locking nuts face
upward (Fig. 3-6).
(2) After checking the drainage, wrap the supplied packing
and drain pipe insulator around the pipe. (Fig. 3-8.)
NOTE
Make sure the drain pipe has a downward gradient (1/100 or
more) and that there are no water traps.
Fig. 3-6
Fig. 3-7
Drain insulator (supplied)
Air bleeder
Fig. 3-8
Fig. 3-9
Stopper
Hose band Supplied
drain hose Drain pipe
(not supplied)
Connection
pipe
Hose band
Align the hose
band with the end
of the pipe
Align the hose
band with the end
of the pipe

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3-5. Checking the Drainage
After wiring and piping are completed, use the following procedure to check that the water will drain smoothly. For this, prepare a
bucket and wiping cloth to catch and wipe up spilled water.
(1) Connect power to the power terminal board (L, N terminal) inside the electrical component box.
(2) Remove the tube cover and through the opening, slowly pour about 1,200 cc of water into the drain pan to check drainage.
(3) Do Test Run to check the drainage after completing installation. When performing Test Run, be sure to observe the Test Run
procedure. Refer to page 26.
CAUTION ¥ Be careful since the
fan will start when you
short the pin on the in-
door control board.
(4) After drain checking is finished, return the Operation
Selector switch to the Run position (ON position*) and
remount the tube cover.
CAUTION ¥ To mount the tube co-
ver, use 4 x 8 tapping
screws. Do not use
long screws as they
may puncture the
drain pan and cause
water leakage.
4 x 8 mm
tapping screw
Tube cover
Front face
Rear
Full-scale diagram
Hole-in-anchor
Hole-in-plug Concrete Insert
Suspension bolt (M10 or 3/8ÕÕ)
(field supply)
Ceiling tiles
Ceiling support
A
A
Fig. 3-13
■CEILING-MOUNTED TYPE
3-6. Suspending the Indoor Unit
(1) Place the full-scale diagram (supplied) on the ceiling
at the spot where you want to install the indoor unit. Use
a pencil to mark the drill holes. (Fig. 3-14).
NOTE
Since the diagram is made of paper, it may shrink or stretch
slightly because of high temperature or humidity. For this
reason, before drilling the holes maintain the correct dimensions
between the markings.
(2) Drill holes at the 4 points indicated on the fullscale
diagram.
(3) Depending on the ceiling type:
a) Insert suspension bolts as shown in Fig. 3-15.
or
b) Use existing ceiling supports or construct a suitable
support as shown in Fig. 3-16.
WARNING
¥ It is important that you use extreme care in supporting
the indoor unit from the ceiling. Ensure that the ceiling
is strong enough to support the weight of the unit.
Before hanging the ceiling unit, test the strength of
each attached suspension bolt.
Fig. 3-14
Fig. 3-15
Fig. 3-16
unit
Fixture
Ceiling
surface
Within
50 mm
Fig. 3-17

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Pul out the Air-
Intake grille
pushing claws
of the hinges Hinge
Screw
Latch
Air-intake grille
Suspension bolt
(field supply)
Ceiling surface
Washer (supplied)
Double nut
(field supply)
Fixture
unit
Slide toward
front side
Sode panel
Ceiling
surface
Nut
(field supply)
Suspension bolt
Washer
(supplied)
Approx.
25 mm
Slide
Fig. 3-18
Suspension bolt
(field supply)
Washer (supplied)
Washer (field supply)
Double nut
(field supply)
unit
Fig. 3-19
Fig. 3-20 Fig. 3-21 Fig. 3-22
Fig. 3-23
Fig. 3-24
(b) Lift the indoor unit, and place it on the washer
throught the notches, so as to fix it in place.(Fig. 3-23)
(c) Tighten the two hexagonal nuts on each suspension
bolt to suspend the indoor unit as shown in Fig. 3-24.
NOTE
A ceiling surface is not always level. Please confirm that the
indoor unit is evenly suspended. For the installation to be
correct, leave aclearance of about 10 mm between the ceiling
panel and the ceiling surface and fill the gap with an appropriate
insulation or filler material.
(8) If the tubing and wiring have to pass towards the rear
of the unit, make holes in the wall. (Fig. 3-25)
(9) Measure the thickness of the wall from the inside to
the outside and cut PVC pipe at a slight angle to fit.
Insert the PVC pipe in the wall. (Fig. 3-26)
NOTE
The hole should be made at a slight downxard slant to the
outside.
(4) Screw in the suspensions bolts, allowing them to
protrude from the ceiling as shown in Fig. 3-16. The
distance od each exposed bolt must be of equal length
within 50 mm. (Fig. 3-17)
(5) Before suspending the indoor unit; remove the 2 or 3
screws on the latch of the air-intake grilles, open the
grilles, and remove them by pushing the claws of the
hinges as shown in Fig. 3-18. Then remove both side
panels sliding them along the unit toward the front after
removing the two screws which fix them. (Fig. 3-19).
(6) Preparation for suspending the indoor unit. The
suspension method varies depending on whether the
unit is next to the ceiling or not. (Fig. 3-20 and 3-21).
(7) Suspend the indoor unit as follows.
(a) mount a washer and two hexagonal nuts on each
suspension bolt as shown in Fig. 3-22.

12
3-7. Duct for Fresh Air
There is a duct connection port (knock-out hole) at the right-
rear on the Panle Top of the indoor unit for drawing in fresh air.
If it is necessary to draw in fresh air, remove the cover by
knocking out and connect the duct to the idoor unit throught the
connection port. (Fig. 3-27)
If connection at the right-rear on the Panel Top is not
appropriate, another duct connection port can be made by
cutting an opening on the left side of the Rear Panel of the
indoor unit as shown in Fig. 3-28.
3-8. Installing the Drain Piping
¥ Prepare a standar PVC pipe for the drain and connect it to
the indoor unit drain pipe with the supplied hose clamps to
prevent water leaks.
CAUTION
¥ Tighten the drain pipe clamps so that the locking nuts
are facing upwards. (If tightened with the locking nuts
facing downwards, it may cause water leakage).
¥ Do not use an adhesive when connecting the drain
hose (supplied) to the drain connection (main unit,
PVC pipe).
¥ Connect the drain piping so that it slopes downward from
the unit to the outside. (Fig. 3-29)
¥ Never allow traps to occur in the course of the piping.
¥ Insulate any piping inside the room to prevent dripping.
¥ Use the supplied drain pipe to connect the drain pipe with the
drain outlet of the indoor unit.
¥ After connecting the drain pipe securely, wrap the supplied
drain pipe insulator around the pipe, seal the gap at the drain
socket with the supplied black insulation tape, then secure
it wit clamps. (Fig. 3-30)
¥ After the drain piping, pour water into the drain pan to check
that the water drains smoothly.
CAUTION ¥ Check local electrical
codes and regulations
before obtaining wire.
Also, check any spe-
cified instruction or li-
mitations.
Duct connection port
(Knock-out hole)
Panel Top
Right side
Right side Cut this portion
Fig. 3-27
Fig. 3-28
Fig. 3-29
Fig. 3-30
ABC
250 110 100 100
110 100 150
360 480
Min. 1/100
Good
Not good
Drain hose
(supplied)
Drain pipe camp
(supplied)
Hard PVC pipe
(not supplied)
Vinyl clamp
(supplied)
Packing
(supplied)
EG
Fig. 3-25 Fig. 3-26
Indoor side Outdoor side
PVC pipe (localy purchased) INSIDE OUTSIDE
PVC pipe
Slight
angle
Cut at slight angle
Wall

13
4-1. Removing the Protective Spacer for
Transportation
Remove the packing skid from the botton of unit and then
remove the plastic spacer used to secure the compressor
during transportation (Fig. 4-1).
Place the unit on a level concrete pad, block or equal and
anchor.
Refer to Section 2. ÒInstallation Site SelectionÓ.
4-2. Installing the Outdoor Unit
(1) Install blocks or a solid platform under the outdoor unit
which provides a minimum height of 15 cm from ground
level. (Fig. 4-2)
(2) The outdoor unit must be bolted down tightly to the
blocks or platform with 4 anchor bolts.
4-3. Tubing Direction
¥ Tubing can be extended in 4 different directions as shown
in Fig. 4-3.
¥ Service valves are housed inside the unit. To access them,
remove the access panel by removing the 2 attaching screws
then slide the panel downward and pull it toward you.
If either rear, right, or front tubing is needed, punch out the
knockout hole with a hammer or similar tool.
¥ After punching out the Knockout holes, mount accessory
rubber bushings or plastic protector on the tubing outlets.
These accessories are packed inside the unit and can be
accessed through the access panel.
¥ Use tube benders to extend internal tubing to the outside.
4. HOW TO INSTALL THE OUTDOOR UNIT
Compressor
Plastic spacer
Anchor
bolts
(not supplied)
Inter-unit
wiring outlets Rear
power
supply
wiring
outlets
Right
Down
Tubing
outlets
Front
Access panel
Height:
min: 15 cm
Packing
skid
Fig. 4-1
Fig. 4-2
Fig. 4-3
GB

14
EG
5-1. General Precautions on Wiring
(1) Before wiring, confirm the rated voltage of the unit as
shown on its nameplate, then carry out the wiring
closely following the wiring diagram.
(2) Provide a power outlet to be used exclusively for
each unit, and a power supply disconnect and
circuit breaker for overcurrent protection should be
provided in the exclusive line.
(3) To prevent possible hazard due to insulation failure,
the unit must be grounded.
(4) Each wiring connection must be done in accordance
with the wiring system diagram. Wrong wiring may
cause the unit to misoperate or become damaged.
(5) Do not allow wiring to touch the refrigerant tubing
compressor, or any moving ports of the fan.
(6) Unauthorized changes in the internal wiring can be
very dangerous. The manufacturer will accept no
responsibility for any damage or misoperation that
occurs as a result of such unauthorized changes.
5. ELECTRICAL WIRING
(7) If the respective phases of the 3-phase power
wiring are not connected correctly, a reverse phase
will occur and the compressor will not start
running. If this happens, swap over 2 of the 3
phases (L1, L2 and L3).
You must insure that installation complies with all
relevant rules and regulations.
(8) To prevent malfunction of the air conditioner caused by
electrical noise, care must be taken when wiring as
follows:
¥ The inter-unit control wiring should be wired apart
from the inter-unit power wiring.
¥ It is recommended that shielded wires or twisted
pair wires be used for the inter-unit control wiring if
the air conditioner is installed where it is exposed
to the influence of electrical and/or electro-magnetic
noise.
5-2. Recommended Wire Lenght and Wire Diameter for Power Supply System
Type
(A) Power Supply (B) Inter-unit wiring Power Supply Terminal Base
250 type (3 phase) 101 m 40 m 15 A 25 A 5.5 mm
2
360 type (3 phase) 91 m 50 m 15 A 25 A 5.5 mm
2
480 type (3 phase) 57 m 50 m 25 A 25 A 5.5 mm
2
250 type (1 phase) 14 m 40 m 40 A 50 A 14 mm
2
4 mm
2
2.5 mm
2
Capacity Max. Wire
Diameter
Time Delay
Fuse or
Circuit
Capacity
NOTE
(1) Refer to the Wiring System Diagrams (See next page)
for the meaning of A and B in the above tables.
(2) For accordance with conformity of EC Directive No.
89/336/EEC, supply connection at the time of installtion
work it should be consider guidance showing below.
¥ Do not share a common installation group with other
equipment.
¥ Be sure that supply network impedance is sufficiently
low (

ZSYS

RΩ).
It may be necessary to consult the power supply
authority before connection of the air conditioner to
a low-voltage public network.
³
Models RΩRemarks
250 type (3 phase) Ð Care is not needed
360 type (3 phase) 0.270 confortms to the local code
480 type (3 phase) 0.122 Ditto
250 type (1 phase) 0.126 Ditto

15
5-3. Wiring System Diagrams
EG
CAUTION
5-4. Examples of Incorrect Wiring
The following are examples of improper wiring that result in
system misoperation. You should confirm that you have wired
the units correctly before beginning the test run described on
page 26.
Outdoor unit: one-phase
50 Hz, 220-240V
Outdoor unit: three-phase
50 Hz, 380-415V

16
EG
When connecting each power wire to corresponding terminal,
follow instructions ÒHow to connect wiring to the terminalÓ and
fasten the wire securely tight with the fixing screw of the terminal
plate.
5-5. How to connect wiring to the terminal
■For solid core wiring (or F-cable)
(1) Cut the wire end with a wire cutter or wire-cutting pliers,
then strip the insulation to expose the solid wire about 25
mm. (Fig. 5-1)
(2) Using a screwdriver, remove the terminal screw(s) on the
terminal plate.
(3) Using the pliers, bend the solid wire to form a loop suitable
for the terminal screw.
(4) Shape the wire loop properly, position it on the terminal
plate and fix it securely with the terminal screw using a
screwdriver.
■For stranded wiring
(1) Cut the wire end with a wire cutter or wire-cutting pliers,
then strip the insulation to expose the stranded wiring
about 10 mm. (Fig. 5-2)
(2) Using a screwdriver, remove the terminal screw(s) on the
terminal plate.
(3) Using a ring connector fastener or pliers, securely clamp
each stripped wire end with a ring connector. (Fig. 5-2)
(4) Position the ring connector, then replace and tighten the
terminal screw with a screwdriver.
CAUTION ¥ Loose wiring may cau-
se the terminal to
overheat or result in
unit malfunction. A fi-
re hazard may also
exist. Therefore, be
sure all wiring is to-
ghtly connected.
Fig. 5-1
Fig. 5-2
Fig. 5-3

EG
17
6-1. Wireless Remote Control Unit
The remote control unit can be operated from either a non-
fixed position or a wall-mounted position.
To ensure that the air conditioner operates correctly, do not
install the remote control unit in the following places:
¥ In direct sunlight
¥ Behind a curtain or other place where it is covered
¥ More than 8 m away from the air conditioner
¥ In the path of the air conditionerÕs airstream
¥ Where it may become extremely hot or cold
¥ Where it may be subject to electrical or magnetic interference
Mounting on a Wall
(a) Removable mounting
(1) Momentarily hold the remote control unit at the desired
mounting position.
(2) Confirm that the air conditioner responds correctly
when you press keys on the remote control from that
position.
(3) After confirming correct operation, use a screwdriver
to screw the supplied special mounting screw into the
wall. (Fig. 6-1)
(4) Hang the remote control unit from the mounting screw.
(b) Non-removable mounting
(1) Momentarily hold the remote control unit at the desired
mounting position.
(2) Confirm that the air conditioner responds correctly
when you press keys on the remote control from that
position.
(3) After confirming correct operation, use a screwdriver
to screw the mounting screw into the wall. (Fig. 6-1)
(4) Remove the remote control cover by sliding it
downward.
(5) Remove the batteries of the remote control unit.
(6) Use a screwdriver to screw the remote control unit
securing screw into the wall through the hole in the
battery compartment. (Fig. 6-2)
(7) Replace the batteries.
(8) Again confirm that the remote control unit operates
correctly.
Fig. 6-1
Fig. 6-2
6. HOW TO INSTALL THE REMOTE CONTROLLER

18
EG
When reaming, hold the tube end downward and be sure that
no copper scraps fall into the tube.
(3) Remove the flare nut from the unit and be sure to
mount it on the copper tube.
(4) Make a flare at the end of copper tube with a flare
tool.*
*Use ÒRIGIDÓ or equivalent.
A good flare should have the following characteristics:
¥ inside surface is glossy and smooth.
¥ edge is smooth.
¥ tapered sides are of uniform length.
NOTE
NOTE
7-1. Connecting Tubing Sides
Use of the Flaring Method
Many of the conventional split system air conditioners employ
the flaring method to connect refrigerant tubes which run
between indoor and outdoor units. In this method, the copper
tubes are flared at each end and connected with flare nuts.
Flaring Procedure with a Flare Tool
(1) Cut the copper tube to the required length with a tube
cutter. It is recommended to cut approx. 30 Ð 50 cm
longer than the tubing length you estimate.
(2) Remove burrs at the end of the copper tube with a
tube reamer or file. This process is important and
should be done carefully to make a good flare.
7. HOW TO PROCESS TUBING
Before After
Copper
tubing
Reamer
Flare nut
Flare tool
Copper
tubing
Caution before Connecting Tubes Tightly
(1) Be sure to apply a sealing cap or water-proof tape to
prevent dust or water from getting into the tubes before
they are used.
(2) Be sure to apply refrigerant lubricant to the matching
surface of the flare and union before connecting them
together. This is effective for reducing gas leaks.
(3) For proper connection, align the union tube and flare
tube straight with each other, then screw in the flare nut
lightly at first to obtain a smooth match.
7-2. Connecting Tubing Between Indoor
and Outdoor Units
(1) Tightly connect the indoor side refrigerant tubing
extended from the wall with the outdoor side tubing.
(2) To fasten the flare nuts, apply specified torque as:
Aplly refrigerant
lubricant here and here
Union Flare nut
Torque wrench
Spanner
Outdoor unit
Indoor unit
Tube Dia. Tightening Torque
6,35 mm (14Ó) Approx. 140 Ð 180 kg-cm
9.52 mm (3/8Ó) Approx. 340 Ð 420 kg-cm
15.88 mm (5/8Ó) Approx. 680 Ð 820kg-cm
19.05 mm (3/4Ó) Approx. 1000 Ð 1200 kg-cm

19
EG
Taping the flare nuts
Wind white insulation tape around the flare nuts at the wide tube
connections. Then cover up the tubing connections with the flare
nut insulator, and fill the gap at the union with the supplied
black insulation tape. Finaly, fix the insulator at both ends with
plastic clamps.
Insulation material
The material used for insulation must have good insulation
characteristics, be easy to use, be age resistant, and must not
easily absorb moisture.
7-3. Insulation of Refrigerant Tubing
CAUTION ¥ Always insulate tubes
after draining water
and completing leak
tests on all connection
points.
CAUTION ¥ After a tube has been
insulated, never try to
bend it into a narrow
curve because it can
cause the tube to
break or crack.
IMPORTANT
To avoid condensation and water leaks, both the wide tube and
narrow tube must be insulated with the insulation materials
(field supply).
Insulation
Thickness:
Min. 8 mm
Thickness:
Min. 8 mm
Wide tube
Narrow tube
Refrigerant tubing
Sealer (supplied) Insulation tape (white)
(supplied)
Flare insulator (supplied)
Tube insulator
(not supplied)
Heat resistant
140 ¡C or higher
Vinyl clamps (supplied)
Refrigerant tiubing and insulator
(not supplied)
Drain pipe and insualtor
(not supplied)
Insulation
tape
Vinyl
clamp
Flare
insulator
Packing
clamp.
Small
hose band
(supplied)
Drain insulator
and clamp.
Large
(supplied)
Seal
The procedures used for
installing the insulator for
both wide and narrow tube
are the same.
Unit side
insulator
Fare nut
Never grasp the drain or refrigerant connecting outlets
when moving the unit.
7-4. Taping the Tubes
(1) At this time, the refrigerant tubes (and electrical wiring
if local codes permit) should be taped with armoring
tape as 1 bundle. To prevent the condensate from
overflowing the drain pan, keep the drain hose separate
from the refrigerant tubing.
(2) Wrap the armoring tape from the bottom of the outdoor
unit to the top of the tubing where it enters the wall.
As you wrap the tubing, overlap half of each previous
tape turn.
(3) Clamps the tubing bundle to the wall, using 1 clamp
approx. every 1 m.
7-5. Finishing the Installation
After finishing insulating and taping over the tubing, use sealing
putty to seal off the hole in the wall to prevent rain and draft from
entering.
Do not wind the armoring tape too tightly since this will decrease
the heat insulation effect. Also be sure the condensation drain
hose splits away from the bundle and drips clear of the unit and
the tubing.
NOTE
Clamp
Drain hose
Isulated tubes
Apply putty here
Tubing