Panasonic S-22MU1E5A User manual

– VRF System Air Conditioner –
■ R410A Models
Model No.
Indoor Units
Type Indoor Units Type Rated Capacity
22 28 36 45 56 60 73 90
U1 4-Way Cassette
S-22MU1E5A
(CZ-KPU21)* S-28MU1E5A (CZ-KPU21)* S-36MU1E5A (CZ-KPU21)* S-45MU1E5A (CZ-KPU21)* S-56MU1E5A (CZ-KPU21)* S-60MU1E5A (CZ-KPU21)* S-73MU1E5A (CZ-KPU21)* S-90MU1E5A (CZ-KPU21)*
Type Indoor Units Type Rated Capacity
106 140 160
U1 4-Way Cassette
S-106MU1E5A
(CZ-KPU21)* S-140MU1E5A (CZ-KPU21)* S-160MU1E5A (CZ-KPU21)*
* Panel (optional parts)
ENGLISH
Read through the Installation Instructions before you proceed with the installation.
In particular, you will need to read under the “IMPORTANT!” section at the top of the page.
FRANÇAIS
Lisez les instructions d’installation avant de commencer l’installation.
En particulier, vous devez lire la section “IMPORTANT!” en haut de la plage.
ESPAÑOL
Lea las Instrucciones de instalación antes de proceder con la instalación del equipo.
En concreto, deberá leer detenidamente la sección “¡IMPORTANTE!” situada al principio de la página.
DEUTSCH
Lesen Sie die Einbauanleitung, bevor Sie mit der Installation beginnen.
Insbesondere die Hinweise im Abschnitt “WICHTIG!” oben auf der Seite müssen unbedingt gelesen werden.
ITALIANO
Leggere le Istruzioni di installazione prima di procedere con l’installazione.
Prestare particolare attenzione alla sezione “IMPORTANTE!” all’inizio della pagina.
NEDERLANDS
Lees de installatie-instructies zorgvuldig door voor u begint met de installatie.
U moet vooral het gedeelte waar “BELANGRIJK!” boven staat heel goed lezen.
PORTUGUÊS
Leia cuidadosamente as instruções de instalação antes de prosseguir com a instalação.
Em particular, é necessário ler as informações na secção “IMPORTANTE!” na parte superior da página.
ΕΛΛΗΝΙΚΆ
Διαβάστε τις Οδηγίες εγκατάστασης πριν συνεχίσετε με την εγκατάσταση.
Συγκεκριμένα, θα χρειαστεί να διαβάσετε την ενότητα «ΣΗΜΑΝΤΙΚΟ!» στο πάνω μέρος της σελίδας.
БЪЛГАРСКИ
Прочетете инструкциите за инсталиране преди да продължите синсталирането.
Вчастност, ще трябва да прочетете раздела „ВАЖНО!“ вгорната част на страницата.
РУССКИЙ
Перед выполнением установки прочтите инструкцию по установке.
Вчастности, вам следует прочесть раздел «ВАЖНО!» вверху страницы.
УКРАЇНСЬКА
Перш ніж продовжити встановлення, прочитайте вказівки зі встановлення.
Зокрема, обов’язково прочитайте розділ «ВАЖЛИВО!» вгорі сторінки.
B.INDONESIA
Bacalah seluruh Petunjuk Pemasangan sebelum Anda melakukan pemasangan.
Secara khusus, Anda perlu membaca bagian “ PENTING! ” di bagian atas halaman.
for Refrigerant R410A
INSTALLATION INSTRUCTIONS
F616390
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AMP Air Conditioning
www.ampair.co.uk | [email protected]

2
IMPORTANT!
Please Read Before Starting
This air conditioner must be installed by the sales dealer
or installer.
This information is provided for use only by authorized
persons.
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.
●This air conditioner shall be installed in accordance with
National Wiring Regulations.
●Pay close attention to all warning and caution notices
given in this manual.
WARNING
This symbol refers to a hazard or unsafe
practice which can result in severe
personal injury or death.
CAUTION
This symbol refers to a hazard or unsafe
practice which can result in personal injury
or product or property damage.
If Necessary, Get Help
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for a
special problem, contact our sales/service outlet or your
certified dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for
improper installation or maintenance service, including
failure to follow the instructions in this document.
SPECIAL PRECAUTIONS
WARNING When Wiring
ELECTRICAL SHOCK CAN
CAUSE SEVERE PERSONAL
INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD
ATTEMPT TO WIRE THIS
SYSTEM.
• Do not supply power to the unit until
all wiring and tubing are completed or
reconnected and checked.
• Highly dangerous electrical voltages are
used in this system.
Carefully refer to the wiring diagram and
these instructions when wiring. Improper
connections and inadequate grounding
can cause accidental injury or death.
• Connect all wiring tightly. Loose wiring
may cause overheating at connection
points and a possible fire hazard.
•Provide a power outlet to be used
exclusively for each unit.
•Provide a power outlet exclusively for
each unit, and full disconnection means
having a contact separation in all poles
must be incorporated in the fixed wiring
in accordance with the wiring rules.
•To prevent possible hazards from
insulation failure, the unit must be
grounded.
When Transporting
Be careful when picking 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…
Select an installation location which is
rigid and strong enough to support or hold
the unit, and select a location for easy
maintenance.
…In a Room
Properly insulate any tubing run inside a
room to prevent “sweating” that can cause
dripping and water damage to walls and
floors.
CAUTION Keep the fire alarm and
the air outlet at least
1.5 m away from the unit.
…In 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.
…In an Area with High Winds
Securely anchor the outdoor unit down
with bolts and a metal frame. Provide a
suitable air baffle.
…In a Snowy Area (for Heat Pump-type
Systems)
Install the outdoor unit on a raised platform
that is higher than drifting snow. Provide
snow vents.
…At least 2.5 m
Indoor unit of this air conditioner shall be
installed in a height of at least 2.5 m.
…In laundry rooms
Do not install in laundry rooms. Indoor unit
is not drip proof.
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AMP Air Conditioning
www.ampair.co.uk | [email protected]

3
ENGLISH
When Connecting Refrigerant Tubing
WARNING
• When performing piping
work do not mix air except
for specified refrigerant
(R410A) in refrigeration
cycle. It causes capacity
down, and risk of
explosion and injury due
to high tension inside the
refrigerant cycle.
• Refrigerant gas leakage
may cause fire.
• Do not add or replace
refrigerant other than
specified type. It may
cause product damage,
burst and injury, etc.
• Ventilate the room well, in the event
that is refrigerant gas leaks during
the installation. Be careful not to allow
contact of the refrigerant gas with a
flame as this will cause the generation
of poisonous gas.
• 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.
• Do not leak refrigerant while piping work
for an installation or re-installation, and
while repairing refrigeration parts.
Handle liquid refrigerant carefully as it
may cause frostbite.
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.
WARNING
• This product must not be
modified or disassembled
under any circumstances.
Modified or disassembled
unit may cause fire,
electric shock or injury.
• Do not clean inside
the indoor and outdoor
units by users. Engage
authorized dealer or
specialist for cleaning.
• In case of malfunction
of this appliance, do not
repair by yourself. Contact
the sales dealer or service
dealer for repair.
CAUTION
• Do not touch the air
inlet or the sharp
aluminum fins of the outdoor
unit.You may get injured.
• Ventilate any enclosed
areas when installing or
testing the refrigeration
system. Escaped refrigerant
gas, on contact with fire
or heat, can produce
dangerously toxic gas.
•
Confirm after installation
that no refrigerant gas is
leaking. If the gas comes
in contact with a burning
stove, gas water heater,
electric room heater or
other heat source, it can
cause the generation of
poisonous gas.
Others
CAUTION
• Do not sit or step on
the unit, you may fall
down accidentally.
• Do not touch the air
inlet or the sharp
aluminum fins of the
outdoor unit.You may get
injured.
• Do not stick any object
into the FAN CASE.
You may be injured
and the unit may be
damaged.
NOTICE
The English text is the original instructions. Other
languages are translations of the original instructions.
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AMP Air Conditioning
www.ampair.co.uk | [email protected]

4
IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Please Read Before Starting
1. GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
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
2. SELECTING THE INSTALLATION SITE . . . . . . . . . . . . . . 6
2-1. Indoor Unit
3. HOW TO INSTALL THE INDOOR UNIT . . . . . . . . . . . . . . . 7
■4-Way Cassette Type (U1 Type) . . . . . . . . . . . . . . . . . . . . . 7
3-1. Preparation for Suspending
3-2. Suspending the Indoor Unit
3-3. Placing the Unit Inside the Ceiling
3-4. How to Process Tubing
3-5. Installing the Drain Pipe
3-6. Important Note for Wiring 4-Way Cassette Type
4. ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4-1. General Precautions on Wiring
4-2. Recommended Wire Length and Wire Diameter
for Power Supply System
4-3. Wiring System Diagrams
5. HOW TO PROCESS TUBING . . . . . . . . . . . . . . . . . . . . . 16
5-1. Connecting the Refrigerant Tubing
5-2. Connecting Tubing Between Indoor and
Outdoor Units
5-3. Insulating the Refrigerant Tubing
5-4. Taping the Tubes
5-5. Finishing the Installation
6. HOW TO INSTALL THE TIMER REMOTE CONTROLLER
OR HIGH-SPEC WIRED REMOTE CONTROLLER
(OPTIONAL PART) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
NOTE
Refer to the Operating Instructions attached to the optional
Timer Remote Controller or optional High-spec Wired Re-
mote Controller.
7. HOW TO INSTALL THE CEILING PANEL . . . . . . . . . . . . . 18
■4-Way Cassette Type (U1 Type) . . . . . . . . . . . . . . . . . . . . 18
7-1. Preparation for Ceiling Panel Installation
7-2. How to Install the Ceiling Panel
7-3. Others
8. HOW TO INSTALL WIRELESS REMOTE
CONTROLLER RECEIVER . . . . . . . . . . . . . . . . . . . . . . . 23
NOTE
Refer to the Operating Instructions attached to the optional
Wireless Remote Controller Receiver.
9. APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
■ Care and Cleaning
■Troubleshooting
■Tips for Energy Saving
IMPORTANT INFORMATION REGARDING THE
REFRIGERANT USED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Page Page
CONTENTS
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AMP Air Conditioning
www.ampair.co.uk | [email protected]

5
ENGLISH
1. GENERAL
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. Flathead screwdriver
2. Phillips head screwdriver
3. Knife or wire stripper
4. Tape measure
5. Carpenter’s level
6. Sabre saw or keyhole saw
7. Hack saw
8. Core bits
9. Hammer
10. Drill
11. Tube cutter
12. Tube flaring tool
13. Torque wrench
14. Adjustable wrench
15. Reamer (for deburring)
1-2. Accessories Supplied with Unit
Table 1-1 (4-Way Cassette)
Part Name Figure
Q’ty Remarks
Full-scale
installation
diagram
1Printed on
container box
Washer 8For suspension
bolts
Screw 4For full-scale
installation diagram
Insulating tape 2For gas and liquid
tube flare nuts
Flare insulator 1 For liquid tube
Flare insulator 1 For gas tube
Drain hose 1
Hose band 1For securing drain
hose
Packing 1
Drain insulator 1
Clamper 3
Operating
Instructions 1
Installation
Instructions 1
●Use M10 for suspension bolts.
●Field supply for suspension bolts and nuts.
1-3. Type of Copper Tube and Insulation Material
If you wish to purchase these materials separately from a local
source, you will need:
1. Deoxidized annealed copper tube for refrigerant tubing.
2. Foamed polyethylene insulation for 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 wiring. Refer to 4. ELECTRICAL
WIRING for details.
CAUTION
Check local electrical codes and regulations before
obtaining wire. Also, check any specified instructions or
limitations.
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
6. Scale for weighing
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AMP Air Conditioning
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6
2. SELECTING THE INSTALLATION SITE
2-1. Indoor Unit
AVOID:
●areas where leakage of flammable gas may be expected.
●places where large amounts of oil mist exist.
●direct sunlight.
●locations near heat sources which may affect the
performance of the unit.
●locations where external air may enter the room directly.
This may cause “condensation” on the air discharge ports,
causing them to spray or drip water.
●locations where the remote controller will be splashed with
water or affected by dampness or humidity.
●installing the remote controller behind curtains or furniture.
●locations where high-frequency emissions are generated.
DO:
●select an appropriate 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 outdoor unit.
●allow room for operation and maintenance as well as
unrestricted air flow around the unit.
●install the unit within the maximum elevation difference
above or below the outdoor unit and within a total tubing
length (L) from the outdoor unit as detailed in the installation
manual packed with the outdoor unit.
●allow room for mounting the remote controller about 1 m off
the floor, in an area that is not in direct sunlight or in the flow
of cool air from the indoor unit.
●If the indoor unit is installed on the ceiling where the
temperature or humidity inside is high (over 30°C/RH: 80%),
add insulating material to the surface of the unit to avoid dew
condensation.
1 m
1 m
1 m 1 m
1 m
4-Way Cassette Type
Wall
indoor unit indoor unit
min. 1 m
min. 1 m
min. 3 m
Obstacles
Ceiling
Fig. 2-1
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AMP Air Conditioning
www.ampair.co.uk | [email protected]

7
ENGLISH
3. HOW TO INSTALL THE INDOOR UNIT
■4-Way Cassette Type (U1 Type)
3-1. Preparation for Suspending
This unit uses a drain pump. Use a carpenter’s level to check
that the unit is level.
3-2. Suspending the Indoor Unit
(1) Fix the suspension bolts securely in the ceiling using the
method shown in the diagrams (Figs. 3-1 and 3-2), by
attaching them to the ceiling support structure, or by any
other method that ensures 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.
Table 3-1 Unit: mm
Length
Type AB C D
22, 28, 36, 45, 56,
60, 73, 90, 106,
140, 160
786 745 860 to 910 860 to 910
(3) Determine the pitch of the suspension bolts using the
supplied full-scale installation diagram. The diagram
and table (Fig. 3-3 and Table 3-2) show the relationship
between the positions of the suspension fitting, unit, and
panel.
Use the nut (field supply) and washer (supplied) for
upper and lower position of the suspension lug.
Table 3-2 Unit: mm
Length
Type ABCDE
22, 28, 36, 45, 56, 60,
73, 90 121 171 256 180 130
106, 140, 160 121 171 319 180 130
Hole-in-anchor
Hole-in-plug Concrete Insert
Suspension bolt (M10 or 3/8")
(field supply)
Note: For DC Fan Tap Change Procedure for 4-Way
Cassette, see page 21.
Fig. 3-1
Fig. 3-2
Fig. 3-3
Indoor Unit
View from top
B (suspension bolt pitch)
A (suspension bolt pitch)
C (ceiling opening dimension)
D (ceiling opening dimension)
D
E
A
B
C
33.5
Drain outlet (other side)
(VP25)
Suspension lug
Refrigerant tubing joint (liquid side)
Refrigerant tubing joint (gas side) Unit: mm
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8
3-3. Placing the Unit Inside the Ceiling
This unit is equipped with the drain pump. Check a tape
measure or carpenter’s level.
Before installing the ceiling panel, complete the work of
drain pipe and refrigerant pipe installation.
(1) When placing the unit inside the ceiling, determine the
pitch of the suspension bolts using the supplied 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 position for connection to
the unit before placing the unit inside the ceiling.
(2) The length of suspension bolts must be appropriate for a
distance between the bottom of the bolt and the bottom
of the unit of more than 18 mm as shown in Fig. 3-4.
(3) Thread the 3 hexagonal nuts and 2 washers (field
supply) onto each of the 4 suspension bolts as shown in
Fig. 3-5. Use 1 nut and 1 washer for the upper side, and
2 nuts and 1 washer for the lower side, so that the unit
will not fall off the suspension lugs.
(4) Adjust so that the distance between the unit and the
ceiling bottom is 12 to 17 mm. Tighten the nuts on the
upper side and lower side of the suspension lug.
(5) Remove the protective polyethylene used to protect the
fan parts during transport.
(6) Check with a tape measure or carpenter’s level.
Fig. 3-5
Nuts and washers
(use for upper and lower)
Double nut
12 – 17 (mm)
Notch
Suspension lug
Suspension bolt
3-4. How to Process Tubing
Refer to the section “5. HOW TO PROCESS TUBING”.
Fig. 3-4
Over 18 mm
12 – 17 mm
Air
conditioner
Ceiling
Screw for
attaching paper
(4 points)
Paper model for
installation
Open the ceiling
as large as this
paper outline
Air
conditioner
Over 18 mm
Paper model
for installation
Full-scale installation diagram
(printed on top of container box)
Ceiling
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AMP Air Conditioning
www.ampair.co.uk | [email protected]

9
ENGLISH
A
B
300 mm or less
Indoor unit
Indoor unit
Bend angle 90° prohibited Bend angle less than 45°
Trap prohibited
Indoor unit
Ceiling surface
Air bleeder prohibited
Separation of support bracket = 1.5 m ~ 2 m
Trap prohibited
Upward gradient
prohibited
* Length of supplied drain pipe = 250 mm
Downward gradient = 1/100 or more
A : 850 mm or lower
B : 670 mm or lower
(as short as possible)
Fig. 3-6
Fig. 3-7
Fig. 3-8
Fig. 3-9
Fig. 3-10
3-5. Installing the Drain Pipe
3-5-1. Before Performing the Installation Drain Piping
(1) Limitations of Raising the Drain Pipe Connection
CAUTION
● The drain pipe can be raised to a maximum height of
850 mm from the bottom surface of the ceiling.
Do not attempt to raise it higher than 850 mm.
Doing so will result in water leakage. (Fig. 3-6)
(2) Limitations of Drain Pipe Connection
CAUTION
● Do not install the drain pipe with an upward gradient from
the drain port connection. This will cause the drain water
to flow backward and leak when the unit is not operating.
(Fig. 3-7)
● Do not install an air bleeder as this may cause water to
spray from the drain pipe outlet. (Fig. 3-7)
● Do not provide U-trap or bell-shaped trap in the middle of
the drain pipe. Doing so will cause abnormal sound.
(Fig. 3-7)
● Make sure the drain pipe has a downward gradient (1/100
or more; downward from drain port connection).
(Fig. 3-8)
(3) Limitations of Drain Hose Connection
CAUTION
● Do not bend the supplied drain hose 90° or more.
Bend it less than 45°. (Fig. 3-9)
● Do not make a trap in the middle of the supplied drain
hose. Doing so will cause abnormal sound. (Fig. 3-10)
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AMP Air Conditioning
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10
Fig. 3-11
3-5-2. Installing the Drain Pipe
CAUTION
● Do not apply force to the drain port when connecting the
drain pipe. Install and fix it near the indoor unit as close
as possible.
● Do not use adhesive when connecting the drain port pipe
and the drain hose.
(1) How to Install the Drain Pipe
1) First insert the supplied hose band into the drain port
pipe. Then make sure the head of the screw is facing
toward a technical engineer when placing the screw of
the hose band at an upward angle.
2) Insert the soft PVC socket of the supplied drain hose
to the drain port pipe. Do not use adhesive when
connecting the drain hose to the drain port pipe.
Insert it until the tip of the drain hose contacts the circular
projection rib of the drain port pipe.
3) Move the hose band so that the center position of the
hose band can be placed approx. 30 mm away from the
external plate of the indoor unit. (Fig. 3-11)
4) Screw the drain hose tightly facing the screw of the hose
band upward. (Torque: 2.5 N·m - 3.4 N·m) (If the screw
is tightened beneath the drain hose, the troubles will be
generated.) Pay attention not to make hose band overlap
the circular projection rib and the sealed circulation
projection of the drain port pipe.
5) Apply approx. 2 gof adhesive on both sides of the drain
hose without connection of the hard PVC socket and the
hard PVC joint (VP25) in the local supply.
6) Connect the drain hose and the hard PVC joint so that
the adhesive area of both sides can be overlapped.
Wipe off the protrusion-adhesive with a soft cloth.
Drain port
Do not use adhesive here.
* Drain port may possibly be damaged if
PVC adhesive is used.
* After checking the drainage, wrap the supplied packing and drain pipe insulator around the pipe.
Do not make hose band overlap the circular projection
rib and the sealed circulation projection of the drain
port pipe. (Torque: 2.5 N·m - 3.4 N·m)
Note:
Be sure to tightly insert the hard PVC
pipe joint (including elbow) minimum
20 mm or more.
57 mm
20 mm or more
Drain insulator (supplied)
* However, do not use the hard PVC
pipe joint allowable more than 55 mm
insertion.
Packing (supplied)
Approx. 5 mm
Approx. 30 mm
Adhere with PVC adhesive.
* Apply approx. 2 gof adhesive on both sides of the
drain hose without connection of the hard PVC
socket and the hard PVC joint (VP25) in the local
supply. Wipe off the protrusion-adhesive with a soft
cloth.
Hard PVC pipe
(VP25 field supplied)
Hard PVC socketHose band (supplied)
Soft PVC socket
Drain hose
(supplied)
Circular
projection rib
Sealed
circulation
projection
rib
Indoor unit
Indoor unit
Sealed circulation
projection rib
Circular projection rib
(Drainage check section
on drain port, transparent)
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11
ENGLISH
3-5-3. Checking the Drainage
Be careful since the fan will start
when you short the pin on the indoor
control board.
After wiring (refer to 4. ELECTRICAL WIRING.) and drain
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 (R, S
terminals) inside the electrical component box.
(2) Slowly pour about 1,200 cc of water into the drain pan to
check drainage. (Fig. 3-12)
(3) Short the check pin (CHK) on the indoor control board
and operate the drain pump. Check the water flow
through the transparent drain pipe and see if there is any
leakage.
(4) When the check of drainage is complete, open the check
pin (CHK) and remount the tube cover.
(5) Checkpoint after installation
After installation of indoor and outdoor units, panels and
electrical wiring, check the following items.
Checkpoint Symptom Check Remark
1Make sure whether indoor and outdoor units
are correctly installed. Fall, vibration, noise
2 Make sure whether gas leakage is tested. No cooling, no heating
3Make sure whether insulation is completed.
(Refrigerant piping and drain piping) Water leakage
4Make sure whether drain water is running
smoothly. Water leakage
5Make sure whether the power voltage
matches the nameplate. Inoperative, burnout
6Make sure whether there is miswiring or
incorrect connection. Inoperative, burnout
7Make sure whether the ground construction
is completed. Ground leakage
8Make sure whether the wire gauge is
followed by the recommended specifications. Inoperative, burnout
9
Make sure whether the air intake and air
outlet of the indoor and outdoor units are
sealed by obstacles.
No cooling, no heating
Fig. 3-12
Drainage check
Over 100 mm
Plastic container
for water intake Water (Approx. 1,200 cc)
Drain pan outlet
CAUTION
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4. ELECTRICAL WIRING
4-1. 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) Circuit breaker must be incorporated in the fixed wiring in
accordance with the wiring regulations. The circuit breaker
must be an approved 10-16 A, having a contact separation
in all poles.
(3) To prevent possible hazards from 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 parts 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.
(7) Regulations on wire diameters differ from locality to
locality. For field wiring rules, please refer to your LOCAL
ELECTRICAL CODES before beginning.
You must ensure 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 remote control wiring and the inter-unit control wiring
should be wired apart from the inter-unit power wiring.
●Use shielded wires for inter-unit control wiring between units
and ground the shield on both sides.
(9) If the power supply cord of this appliance is damaged,
it must be replaced by a repair shop designated by the
manufacturer, because special-purpose tools are required.
4-2. Recommended Wire Length and Wire Diameter
for Power Supply System
Indoor unit
Type (B) Power supply Time delay fuse or
circuit capacity
2.5 mm2
U1 Max. 130 m 10-16 A
Control wiring
(C) Inter-unit
(between outdoor
and indoor units)
control wiring
(D) Remote control
wiring (E) Control wiring for group control
0.75 mm2
(AWG #18)
Use shielded wiring*
0.75 mm2
(AWG #18) 0.75 mm2 (AWG #18)
Max. 1,000 m Max. 500 m Max. 200 m (Total)
NOTE
*With ring-type wire terminal.
3-6. Important Note for Wiring 4-Way Cassette Type
(1) The power supply inlet is located at the lower area of
the refrigerant tubing side of the unit. The electrical
component box is located at the air intake of the bottom
of the unit.
(2) Before installing the ceiling panel, be sure to carry out
the wiring connection.
(3) Remove the lid located on the bottom of the indoor unit
attaching the electrical component box by unscrewing
the philip head tapping screws (×2).
(4) Lead the wires from the power supply inlet to the unit.
Be sure to lead the wires through the power supply inlet.
Make sure that no wire is caught between the indoor unit
and ceiling panel. Otherwise, the unit may cause a fire.
(5) Connect the wires into the terminals through the power
supply inlet for the electrical component box.
Fix the wires with a clamping clip.
(6) Reinstall the lid of the electrical component box in its
original position with paying attention not to have the
wires caught in the lid.
Refer to “4. ELECTRICAL WIRING”.
Power supply inlet
Tapping screw position
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13
ENGLISH
4-3. Wiring System Diagrams
NOTE
(1) Refer to Section 4-2. “Recommended Wire Length
and Wire Diameter for Power Supply System” for the
explanation of “B”, “C”, “D” and “E” in the above diagram.
(2) The basic connection diagram of the indoor unit shows the
terminal boards, so the terminal boards in your equipment
may differ from the diagram. (Fig. 4-2)
(3) Refrigerant Circuit (R.C.) address should be set before
turning the power on.
(4) Regarding R.C. address setting, refer to the installation
instructions supplied with the remote controller unit
(Optional). Auto address setting can be executed by
remote controller automatically. Refer to the installation
instructions supplied with the remote controller unit
(optional).
Fig. 4-1
Fig. 4-2
LN U1U2R1R2
6P terminal board
Power
supply Unit control
line
Remote
control
line
U1 Type
U2
U1
R2
R1
L
N
R2
R1
R2
R1
R2
R1
2
1
2
1
U2
U1
L
N
U2
U1
L
N
U2
U1
L
N
2
1
2
1
2
1
D
E
C
B
L
N
L
N
L
N
L
N
2
1
B
B
B
C
D
D
C
2
1
L1
L2
L3
N
2
1
L1
L2
L3
N
CL1
L2
L3
N
L1
L2
L3
N
U2
U1
Power supply
220/230/240V ~ 50/60 Hz
Power supply
220/230/240V ~ 50/60 Hz
Power supply
220/230/240V ~ 50/60 Hz
Power supply
220/230/240V ~ 50/60 Hz
Remote
controller
Remote
controller
Remote
controller
WHT
BLK
WHT
BLK
WHT
BLK
Ground
Ground
Ground
Ground
Ground
Ground
Inter-outdoor-unit control wiring
Ground
Ground Ground
Outdoor unit
INV unit
Power supply
380/400/415V, 3 N~, 50 Hz
Power supply
380/400/415V, 3 N~, 50 Hz
Outdoor unit
INV unit
Ground
Ground
Ground
Ground
Ground
Ground
Indoor unit
(No. 1)
Indoor unit
(No. 2)
Indoor unit
(No. n)
Indoor unit
(No. 3)
Group control:
ex.) MF2 Type
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CAUTION
(1) When linking the outdoor units in a network, disconnect the terminal extended from the short plug from all outdoor units
except any one of the outdoor units.
(When shipping: In shorted condition.)
For a system without link (no wiring connection between outdoor units), do not remove the short plug.
(2) Do not install the inter-unit control wiring in a way that forms a loop. (Fig. 4-3)
Outdoor unit Outdoor unit Outdoor unit
Indoor unit Indoor unit Indoor unit Indoor unit
Prohibited
Prohibited
Indoor unit
Fig. 4-3
(3) Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes mis-address setting. (Fig. 4-4)
Fig. 4-4
(4) If branching the inter-unit control wiring, the number of branch points should be 16 or fewer.
Central Controller
Outdoor unit
Outdoor unit
Indoor unit
Indoor unit
Indoor unit Indoor unit Indoor unit
Indoor unit Indoor unit
Indoor unit Indoor unit
Outdoor unit
: Branch point
More than 2m required
Fig. 4-5
Outdoor unit Indoor unitIndoor unit
Indoor unitIndoor unit
NO
Branch point
(5) Use shielded wires for inter-unit control wiring (c)
and ground the shield on both sides, otherwise
misoperation from noise may occur. (Fig. 4-6)
Connect wiring as shown in Section “4-3.Wiring
System Diagrams”.
Fig. 4-6
(6) • Connecting cable between indoor unit and outdoor
unit shall be approved polychloroprene sheathed 5 or
3 *1.5 mm2flexible cord. Type designation 60245 IEC
57 (H05RN-F, GP85PCP etc.) or heavier cord.
• Use the standard power supply cables for Europe (such
as H05RN-F or H07RN-F which conform to CENELEC
(HAR) rating specifications) or use the cables based on
IEC standard. (60245 IEC57, 60245 IEC66)
WARNING
Loose wiring may cause the terminal to overheat or
result in unit malfunction. A fire hazard may also occur.
Therefore, ensure that all wiring is tightly connected.
When connecting each power wire to the terminal, follow the
instructions on “How to connect wiring to the terminal” and
fasten the wire securely with the terminal screw.
Shielded wire
Ground Ground
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15
ENGLISH
Stranded wire
Ring
pressure
terminal Screw and
Special washer
Ring
pressure
terminal
Terminal board
Ring pressure
terminal
Screw
Special
washer
Wire
Wire
Insulation tape
8 mm
Insulation tape
Shield mesh
Shield mesh
Strip 10 mm
Fig. 4-7 Fig. 4-8
Fig. 4-9
Fig. 4-10
Fig. 4-11
Fig. 4-12
How to connect wiring to the terminal
■For stranded wiring
(1) Cut the wire end with cutting pliers,
then strip the insulation to expose
the stranded wiring about 10 mm and
tightly twist the wire ends. (Fig. 4-7)
(2) Using a Phillips head screwdriver,
remove the terminal screw(s) on the
terminal board.
(3) Using a ring connector fastener or
pliers, securely clamp each stripped
wire end with a ring pressure terminal.
(4) Place the ring pressure terminal,
and replace and tighten the removed
terminal screw using a screwdriver.
(Fig. 4-8)
■Examples of shield wires
(1) Remove cable coat not to scratch braided shield. (Fig. 4-9)
(2) Unbraid the braided shield carefully and twist the
unbraided shield wires tightly together. Insulate the shield
wires by covering them with an insulation tube or wrapping
insulation tape around them. (Fig. 4-10)
(3) Remove coat of signal wire. (Fig. 4-11)
(4) Attach ring pressure terminals to the signal wires and the
shield wires insulated in Step (2). (Fig. 4-12)
■Wiring samples
Use this screw when connecting the shield
for the Inter-unit control wiring to ground.
Functional ground screw (External Electronic
Expansion Valve Kit and Schedule Timer)
Protective ground screw (External
Solenoid Valve Kit for 3WAY)
Power Supply
Clamping Clip
Inter-unit Control
Wiring
Clamper*1
Remote Control
Wiring
U1 type
*1 Fasten tightly.
Clamper*1
Clamper*1
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5. HOW TO PROCESS TUBING
The liquid tubing side is connected by a flare nut, and the gas
tubing side is connected by brazing.
5-1. Connecting the Refrigerant Tubing
Use of the Flaring Method
Many of conventional split system air conditioners employ the
flaring method to connect refrigerant tubes that 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 – 50 cm longer
than the tubing length you estimate.
(2) Remove burrs at each end of the copper tubing with a
tube reamer or file. This process is important and should
be done carefully to make a good flare. Be sure to keep
any contaminants (moisture, dirt, metal filings, etc.) from
entering the tubing. (Figs. 5-1 and 5-2)
AfterBefore
Deburring
Copper
tubing
Reamer
Fig. 5-1 Fig. 5-2
NOTE
When reaming, hold the tube end downward and be sure that
no copper scraps fall into the tube. (Fig. 5-2)
(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 the copper tube with a flare tool.
(Fig. 5-3)
Flare nut
Copper
tubing
Flare tool
Fig. 5-3
NOTE
A good flare should have the following characteristics:
●inside surface is glossy and smooth
●edge is smooth
●tapered sides are of uniform length
Caution Before Connecting Tubes Tightly
(1) Apply a sealing cap or water-proof tape to prevent dust or
water from entering the tubes before they are used.
(2) Be sure to apply refrigerant lubricant (ether oil) to the
inside of the flare nut before making piping connections.
This is effective for reducing gas leaks. (Fig. 5-4)
Apply refrigerant lubricant.
Fig. 5-4
(3) For proper connection, align the union tube and flare tube
straight with each other, then screw on the flare nut lightly
at first to obtain a smooth match. (Fig. 5-5)
Flare nut
Union
Fig. 5-5
●Adjust the shape of the liquid tube using a tube bender at the
installation site and connect it to the liquid tubing side valve
using a flare.
Cautions During Brazing
●Replace air inside the tube with nitrogen gas to prevent
copper oxide film from forming during the brazing
process. (Oxygen, carbon dioxide and Freon are not
acceptable.)
●Do not allow the tubing to get too hot during brazing.
The nitrogen gas inside the tubing may overheat,
causing refrigerant system valves to become damaged.
Therefore allow the tubing to cool when brazing.
●Use a reducing valve for the nitrogen cylinder.
●Do not use agents intended to prevent the formation
of oxide film. These agents adversely affect the
refrigerant and refrigerant oil, and may cause damage or
malfunctions.
5-2. Connecting Tubing Between Indoor and
Outdoor Units
(1) Tightly connect the indoor-side refrigerant tubing extended
from the wall with the outdoor-side tubing.
Indoor Unit Tubing Connection ( 1, 2... n-1)
Indoor unit type 22 28 36 45 56 60 73 90 106 140 160
Gas tubing (mm) ø12.7 ø15.88
Liquid tubing (mm) ø6.35 ø9.52
(2) To fasten the flare nuts, apply specified torque.
●When removing the flare nuts from the tubing connections,
or when tightening them after connecting the tubing, be sure
to use 2 adjustable wrenches or spanners. (Fig. 5-6)
If the flare nuts are over-tightened, the flare may be damaged,
which could result in refrigerant leakage and cause injury or
asphyxiation to room occupants.
Outdoor unit
Torque wrench
Spanner
Indoor unit
Fig. 5-6
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ENGLISH
●For the flare nuts at tubing connections, be sure to use the
flare nuts that were supplied with the unit, or else flare nuts
for R410A (type 2). The refrigerant tubing that is used must
be of the correct wall thickness as shown in the table below.
Tube diameter Tightening torque
(approximate) Tube thickness
ø6.35 (1/4") 14 – 18 N · m
{140 – 180 kgf · cm} 0.8 mm
ø9.52 (3/8") 34 – 42 N · m
{340 – 420 kgf · cm} 0.8 mm
ø12.7 (1/2") 49 – 61 N · m
{490 – 610 kgf · cm} 0.8 mm
ø15.88 (5/8") 68 – 82 N · m
{680 – 820 kgf · cm} 1.0 mm
Because the pressure is approximately 1.6 times higher than
conventional refrigerant pressure, the use of ordinary flare
nuts (type 1) or thin-walled tubes may result in tube rupture,
injury, or asphyxiation caused by refrigerant leakage.
●In order to prevent damage to the flare caused by over-
tightening of the flare nuts, use the table above as a guide
when tightening.
●When tightening the flare nut on the liquid tube, use an
adjustable wrench with a nominal handle length of 200 mm.
5-3. Insulating the Refrigerant Tubing
Tubing Insulation
●Thermal insulation must be applied to all units tubing,
including distribution joint (field supply).
* For gas tubing, the insulation material must be heat
resistant to 120°C or above. For other tubing, it must be
heat resistant to 80°C or above.
Insulation material thickness must be 10 mm or greater.
If the conditions inside the ceiling exceed DB 30°C and RH
70%, increase the thickness of the gas tubing insulation
material by 1 step.
Two tubes arranged together
Liquid tubing Gas tubing
Insulation
Fig. 5-7
CAUTION
If the exterior of the outdoor unit valves has been finished
with a square duct covering, make sure you allow sufficient
space to access the valves and to allow the panels to be
attached and removed.
Taping the flare nuts
Wind the white insulation tape around the flare nuts at the gas
tube connections. Then cover up the tubing connections with
the flare insulator, and fill the gap at the union with the supplied
black insulation tape. Finally, fasten the insulator at both ends
with the supplied vinyl clamps. (Fig. 5-8)
Flare insulator (supplied)
Insulation tape
(supplied)
Tube insulator
(not supplied)
Heat resistant
120°C or above
Flare union
Flare nut
Unit side
Fig. 5-8
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.
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.
Never grasp the drain or refrigerant connecting outlets
when moving the unit.
5-4. Taping the Tubes
(1) At this time, the refrigerant tubes (and electrical wiring
if local codes permit) should be taped together with
armoring tape in 1 bundle. To prevent condensation 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) Clamp the tubing bundle to the wall, using 1 clamp approx.
each meter. (Fig. 5-9)
Insulated tubes Drain hose
Clamp
Fig. 5-9
NOTE
Do not wind the armoring tape too tightly since this will
decrease the heat insulation effect. Also ensure that the
condensation drain hose splits away from the bundle and drips
clear of the unit and the tubing.
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18
Main unit
Ceiling side
Ceiling opening
dimension
A
A
: Be sure to necessarily make a space within the range of
12 mm - 17 mm.
If not within this range, malfunction or other trouble may
occur.
Flap
5-5. 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. (Fig. 5-10)
Apply putty here
Tubing
Fig. 5-10
6. HOW TO INSTALL THE TIMER REMOTE
CONTROLLER OR HIGH-SPEC WIRED
REMOTE CONTROLLER (OPTIONAL
PART)
NOTE
Refer to the Operating Instructions attached to the optional
Timer Remote Controller or optional High-spec Wired Remote
Controller.
7. HOW TO INSTALL THE CEILING PANEL
■ 4-Way Cassette Type (U1 Type)
Accessories
Ceiling panel ×1 Washer head screws ×4
M5 ×40
ø18
Installation notes ×1 Screws ×4
4×12
7-1. Preparation for Ceiling Panel Installation
(1) Checking the unit position
1) Check that the ceiling hole is within this range:
860 mm × 860 mm to 910 mm × 910 mm
2) Confirm that the position of the indoor unit and the
ceiling as shown in the diagram. If the positions of
the ceiling surface and unit do not match, air leakage,
water leakage, flap operation failure, or other problems
may occur.
WARNING
● Never place the panel face-down.
Either hang it vertically or place it on top of
a projecting object. Placing it face-down will
damage the surface.
● Do not touch the flap or apply force to it.
(This may cause flap malfunction.)
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ENGLISH
7-2. How to Install the Ceiling Panel
(1) Removing the air-intake grille
1) Remove the 2 screws on the latch of the air-intake
grille. (Fig. 7-1) (Reattach the air-intake grille after
installation of the ceiling panel.)
2) Slide the air-intake grille catches in the direction
shown by the arrows 1to open the grille. (Fig. 7-1)
1
1
Fig. 7-1
3) With the air-intake grille opened, remove the grille
hinge from the ceiling panel by sliding it in the direction
shown by the arrow 2. (Fig. 7-2) (Reattach the air-
intake grille after installation of the ceiling panel.)
2
Fig. 7-2
(2) Removing the corner cover
Slide the corner cover in the direction of the arrow 1and
remove it.
2
1
Fig. 7-3
Corner cover
Corner cover
Push to
disengage
Ceiling panel
Slide
Strap
(3) Installing the ceiling panel
The power must be turned ON in order to change the
flap angle. (Do not attempt to move the flap by hand.
Doing so may damage the flap.)
1) Hang the temporary latches on the inside of the ceiling
panel to the receptacle on the unit to temporarily
attach the ceiling panel in place. (Fig. 7-4)
● The ceiling panel must be installed in the correct
direction relative to the unit. Align the REF. PIPE and
DRAIN marks on the ceiling panel corner with the
correct positions on the unit.
● When removing the ceiling panel, push the temporary
latches outward while holding the ceiling panel.
(Fig. 7-4)
Fig. 7-4
2)
Align the panel installation holes and the unit screw holes.
3) Tighten the supplied washer head screws at the
4 panel installation locations so that the panel is
attached tightly to the unit. (Fig. 7-5)
Fig. 7-5
4) Check that the panel is attached tightly to the ceiling.
● At this time, make sure that there are no gaps
between the unit and the ceiling panel, or between the
ceiling panel and the ceiling surface. (Fig. 7-6)
Fig. 7-6
● If there is a gap between the panel and the ceiling,
leave the ceiling panel attached and make fine
adjustments to the installation height of the unit to
eliminate the gap with the ceiling. (Fig. 7-7)
Fig. 7-7
Receptacle on the
main unit
Push to disengage
Temporary latch
Temporary latch
Drain tube corner
Refrigerant tube
corner
DRAIN mark
REF. mark
Washer head screws
Do not allow gaps.
Make fine adjustments by a wrench
or other tool to the installation height
of the unit to eliminate the gap with
the ceiling through the hole of the
corner cover.
Ceiling panel
Main unit
Ceiling surface
Ceiling panel
Air-intake grille
Air-intake
grille hinge
Ceiling panel
Screw
Latch
Panaindoorall.indb19Panaindoorall.indb19 2013/12/1615:15:192013/12/1615:15:19
AMP Air Conditioning
www.ampair.co.uk | [email protected]

20
WARNING
● If the screws are not sufficiently tightened, trouble
such as that shown in the figure below may occur.
Be sure to tighten the screws securely.
● If a gap remains between the ceiling surface and the
ceiling panel even after the screws are tightened,
adjust the height of the unit again.
(4) Wiring the Ceiling Panel
1) Open the cover of the electrical component box for
control PCB.
2) Connect the 22P connector (white) from the ceiling
panel to the connector on the control PCB in the unit
electrical component box. In this case, expose the
cutout section of the tube for the wiring protection to
the outside from the electrical component box and fix it
with the clamper attached to the electrical component
box.
● If the connectors are not connected, the Auto Flap
will not operate. Be sure to connect them securely.
(If not connected completely, “09” will be displayed
on the remote controller.)
● Check that the wiring connector is not caught
between the electrical component box and the
cover.
● Check that the wiring connector is not caught
between the unit and the ceiling panel.
Fig. 7-8
(5) How to Attach the Corner & Air-Intake Grille
A. Attaching the corner cover
1) Check that the safety cord from the corner cover is
fastened to the ceiling panel pin, as shown in the figure
below.
2) Use the supplied screws to attach the corner cover to the
ceiling panel.
B. Attaching the air-intake grille
● To install the air-intake grille, follow the steps for
“Removing the grille” in the reverse order. By rotating
the air-intake grille, it is possible to attach the grille onto
the ceiling panel from any of 4 directions. Coordinate the
directions of the air-intake grilles when installing multiple
units, and change the directions according to customer’s
requests.
● When attaching the air-intake grille, be careful that the
flap lead wire does not become caught.
● Be sure to attach the safety cord that prevents the air-
intake grille from dropping off to the ceiling panel unit as
shown in the figure below.
● With this ceiling panel, the directions of the air-intake grille
lattices when installing multiple units, and the position
of the label showing the company name on the corner
panel, can be changed according to customer’s requests,
as shown in the figure below. However, the wireless signal
receiver can only be installed at the refrigerant-tubing
corner of the ceiling unit.
Fig. 7-9
Pin
Hole for ceiling panel hook
Refrigerant tube side
Wireless signal receiver
* Only this area
is possible for
installation.
Electrical
component box
Can be installed
rotated 90°
Locations of air-intake
grille hinges at the
factory shipment
* The grille can be
installed with these
hinges facing in any of
4 directions.
Drain pipe side
Hook that prevents the grille from dropping
Place the corner cover so that the 3 tabs fit
into the holes in the ceiling panel.
Then fasten it in place with the supplied
screws.
Air leakage
Staining
Air leakage
from ceiling panel
Adjust so that there
are no gaps.
Electrical component
box cover
Screws (2 locations)
Clamper
Ceiling panel side
Main unit side
Cutout section of the tube
for the wiring protection Ceiling panel
wiring connector
Wiring chart
(Direction that the unit
faces has been changed to
facilitate explanation.)
If there is no affect to the horizontal
of the unit and drain tube, adjustment
to the installation height of the unit
can be made through the hole of the
ceiling panel corner.
Condensation, water leakage
Panaindoorall.indb20Panaindoorall.indb20 2013/12/1615:15:192013/12/1615:15:19
AMP Air Conditioning
www.ampair.co.uk | [email protected]