Panasonic S15MM1E5A User manual

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

PORTUGUÊS
NEDERLANDS
ITALIANO DEUTSCH ESPAÑOL FRANÇAIS ENGLISH
– VRF System Air Conditioner –
■ R410A Models
Model No.
Indoor Units
Type Indoor Unit Type Rated Capacity
15 22 28 36 45 56
M1 Slim Low Static Ducted S-15MM1E5A S-22MM1E5A S-28MM1E5A S-36MM1E5A S-45MM1E5A S-56MM1E5A
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.
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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
F616496
II_F616496_EU_L_2.indb 1 2014-10-24 13:53:46

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
WARNING When Wiring
WARNING
Risk of Electric Shock
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.
• This equipment is strongly recommended
to be installed with Earth Leakage
Circuit Breaker (ELCB) or Residual
Current Device (RCD). Otherwise, it may
cause electrical shock and fire in case
of equipment breakdown or insulation
breakdown.
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.
WARNING
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.
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3
ENGLISH
…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.
When Connecting Refrigerant Tubing
WARNING
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
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.
WARNING
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
WARNING
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.
II_F616496_EU_L_2.indb 3 2014-10-24 13:53:49

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
Indoor Unit
3. HOW TO INSTALL THE INDOOR UNIT . . . . . . . . . . . . . . . 7
■ Slim Low Static Ducted Type (Type M1) . . . . . . . . . . . . . . . 7
3-1. Required Minimum Space for Installation and Service
3-2. Preparations Before Installation
3-3. For Bottom Intake
3-4. Installing the Duct
3-5. Suspending the Indoor Unit
3-6. Installing the Drain Pipe
3-7. Checking the Drainage
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
Page
6. HOW TO INSTALL THE TIMER REMOTE CONTROLLER
OR HIGH-SPEC WIRED REMOTE CONTROLLER
(OPTIONAL PART) .............................. 18
N OT E
Refer to the Operating Instructions attached to the optional
Timer Remote Controller or optional High-spec Wired
Remote Controller.
7. HOW TO INSTALL WIRELESS REMOTE CONTROLLER
RECEIVER .................................... 18
N OT E
Refer to the Operating Instructions attached to the optional
Wireless Remote Controller Receiver.
8. EXTERNAL STATIC PRESSURE SETTING . . . . . . . . . . 19
8-1. How to Set on PC Board
8-2. Operating the Timer Remote Controller (CZ-RTC2)
8-3. Operating the High-spec Wired Remote Controller
(CZ-RTC3)
9. APPENDIX .................................... 23
■ Names of Parts
■ Care and Cleaning
IMPORTANT INFORMATION REGARDING THE
REFRIGERANT USED ..............................23
Page
CONTENTS
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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. Hacksaw
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
Part Name Figure Q’ty Remarks
Washer 8 For suspension fitting
Flare
insulator
2For gas pipe / liquid pipe
connection
2For gas pipe / liquid pipe
connection
Clamper 4For flare / drain insulating
connection
Drain hose L=131 1For unit & PVC pipe
connection
Hose band 1 For drain hose connection
Drain hose
insulation 2 For drain pipe connection
Clamper
1 For power supply code
Be sure to fix the power supply cord
with the clamper.
Short-circuit
connection 1
For high static pressure
(Located on the back of
the electrical component
box lid.)
• Use 3/8”(M10) for suspension bolts.
• Suspension bolts and nuts are field supply.
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 5/16”(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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6
2. SELECTING THE INSTALLATION SITE
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 (3.3
ft.) off the floor, in an area that is not in direct sunlight nor in
the flow of cool air from the indoor unit.
● The elevation (Slim Low Static Ducted) between the bottom
unit and the floor surface should be at least 2.4 m (8 feet).
● If the elevation (Slim Low Static Ducted) between them is
less than 2.4 m (8 feet), install a filter or a protective device
(field supply) not to touch the electrical parts or fan with
hands.
2.4 m (8 feet) or more
Floor
Fig. 2-1
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7
ENGLISH
564
3. HOW TO INSTALL THE INDOOR UNIT
■ Slim Low Static Ducted Type (Type M1)
3-1. Required Minimum Space for Installation and
Service
● This air conditioner is usually installed above the ceiling so
that the indoor unit and ducts are not visible. Only the air
intake and air outlet ports are visible from below.
● The minimum space for installation and service is shown in
the diagram. (Fig. 3-1)
● *H dimension means the minimum height of the unit.
● Select the *H dimension such that a downward slope of at
least 1/100 is ensured as indicated in “3-6. Installing the
Drain Pipe”.
● The diagram shows the detailed dimensions of the indoor
unit. (Fig. 3-2)
Fig. 3-1
Fig. 3-2
Unit : mm
1Refrigerant tubing joint (narrow tube)
2Refrigerant tubing joint (wide tube)
3Upper and bottom drain port (O.D.26 mm)
4Suspension lug
5Power supply outlet (ø17)
6Flange for air outlet duct
7Cover plate
8Electrical component box
9Filter
0Inter-unit control wiring and control wiring for
group control outlet (ø15)
!Remote control wiring outlet (ø15)
824(Suspension bolt pitch)
Flange for air
outlet duct
Min. 100 mm or more for bottom air intake
8
6
4
7
1
2
5
10
11
9
3
145
692
29
96
750
640
194
38
37
150
66
26
27
28
30
81
33
153
150
200
30
10
80 143
23844
126
680
22
15523
40
14
120
15
14
704
23 23
132 220 220 132
14
84
640 (160x4)
824
2-ø3.1(Hole)
10-ø3.1(Hole)
* Filter Uninstalled
(Flange for air outlet duct)
5-ø3.1(Hole)
(Suspension bolt pitch)
Inspection access
(450x450)
(Field supply)
Water inlet
Flange for air outlet duct
564 (Suspension bolt pitch)
Ceiling
Unit: mm
Refrigerant tubing
Min. 650 or more
Inspection
access
450x450
Electrical
component box
Min. 200
or more
Min. 20 or more
200
Min. 20 or more
*H=Min. 240
Min. 200 or more
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8
3-2. Preparations Before Installation
(1) Confirm the positional relationship between the unit and
suspension bolts. (Fig. 3-3)
● Install the inspection opening on the control box side where
maintenance and inspection of the control box and drain
pump are easy. Install the inspection opening also in the
lower part of the unit.
700
800
A
Air discharge Air intake
Ceiling
Unit: mm
(Inspection access)
Allow view A
Inspection access
(Field supply)
Fig. 3-3
(2) Make sure the range of the unit’s external static pressure is
not exceeded.
(See the technical documentation for the range of the external
static pressure setting.)
(3) Open the installation hole. (Pre-set ceilings)
● Once the installation hole is opened in the ceiling where the
unit is to be installed, pass refrigerant piping, drain piping,
inter-unit control wiring, and remote controller wiring to the
unit’s piping and wiring holes.
See “5. HOW TO PROCESS TUBING”, “3-6. Installing the
Drain Pipe” and “4. ELECTRICAL WIRING”.
● After opening the ceiling hole, make sure ceiling is level if
needed. It might be necessary to reinforce the ceiling frame
to prevent shaking.
Consult an architect or carpenter for details.
3-3. For Bottom Intake
For bottom intake, replace the cover plate and Frame Filter
Assy net in the procedure shown in the diagram.
(1) Remove the frame filter assy.
Remove the cover plate. (Fig. 3-4)
Air intake
Frame
Filter Assy
Cover plate
Air discharge
Dummy hole
Fig. 3-4
(2) Refer to the diagram to attach the cover plate and frame filter
assy in the direction of the arrow. (Fig. 3-5)
Note: Attach the cover plate with the dummy holes downward.
Dummy hole
Cover plate
Air discharge
Air intake
Frame
Filter Assy
Fig. 3-5
(3) Attach the frame filter assy (supplied) in the manner shown in
the diagram. (Fig. 3-6)
Main unit
Frame Filter Assy
In case of bottom side In case of back side
Attach the Frame Filter Assy to
the main unit while pushing the
tip of the latches in the direction
of the arrow.
Fig. 3-6
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9
ENGLISH
3-4. Installing the Duct
Connect the duct supplied in the field as shown in Fig. 3-7.
Flange
(Field supply)
Rectangular solid duct
(Field supply)
Insulation material
(Field supply)
Connection screw (x10)
Air inlet side Air outlet side
Main unit
Flange
Fig. 3-7
Air inlet side
• Attach the duct and intake-side flange (field supply).
• Connect the flange to the main unit with 10 - ø3.1 (Hole)
screws.
• Wrap the intake-side flange and duct connection area with
aluminum tape or something similar to prevent air escaping.
CAUTION
When attaching a duct to the intake-side, be sure to attach
an air filter inside the air passage on the intake-side. (Use
an air filter whose dust collecting efficiency is at least 50%
in a gravimetric technique.)
The included filter is not used when the intake duct is
attached.
Air outlet side
• Connect the duct according to the air outside of the outlet-
side flange.
• Wrap the outlet-side flange and the duct connection area
with aluminum tape or something similar to prevent air
escaping.
CAUTION
● Be sure to insulate the duct to prevent condensation from
forming. (Material: glass wool or polyethylene foam, 25 mm
thick)
● Use electric insulation between the duct and the wall when
using metal ducts to pass metal laths of the net or fence
shape or metal plating into wooden buildings.
● Be sure to explain about the way of maintaining and cleaning
local procurements (air filter, grille [both air outlet and suction
grille], etc.) to your customer.
3-5. Suspending the Indoor Unit
Depending on the ceiling type:
• Insert suspension bolts as shown in the diagram. (Fig. 3-8)
or
• Use existing ceiling supports or construct a suitable
support as shown in the diagram. (Fig. 3-9)
Hole-in-anchor
Hole-in-plug
Suspension bolt
(M10 or 3/8”)
(field supply)
Concrete
Insert Ceiling tiles
Ceiling support
Fig. 3-8 Fig. 3-9
WARNING
It is important that you use extreme care in supporting
the indoor unit inside the ceiling. Ensure that the ceiling
is strong enough to support the weight of the unit. Before
hanging the unit, test the strength of each attached
suspension bolt.
(1) When placing the unit inside the ceiling, determine the pitch
of the suspension bolts referring to the dimensional data as
shown in Fig. 3-1.
Tubing must be laid and connected inside the ceiling when
suspending the unit. If the ceiling is already constructed,
lay the tubing into position for connection to the unit before
placing the unit inside the ceiling.
(2) Screw in the suspension bolts allowing them to protrude from
the ceiling as shown in Fig. 3-8. (Cut the ceiling material, if
necessary.)
(3) Thread the 3 hexagonal nuts and 2 washers (field supply)
onto each of the 4 suspension bolts as shown in Fig. 3-10
and 3-11. Use 1 nut and 1 washer for the upper part, and 2
nuts and 1 washer for the lower part, so that the unit will not
fall off the suspension lugs.
Nuts and washers
(use for upper and
lower)
Suspension bolt
Double nuts
Suspension lug
Notch
Fig. 3-10
Suspension bolt
Hexagonal nut
Double nuts
Fig. 3-11
II_F616496_EU_L_2.indb 9 2014-10-24 13:53:54

10
(4) Adjust the height of the unit.
(5) Check the unit is horizontally level.
CAUTION
● Make sure the unit is installed level using a level or a vinyl
hose filled with water. In using a vinyl hose instead of a level,
adjust the top surface of the unit to the surface of the water
at both ends of the vinyl hose and adjust the unit horizontally.
(One thing to watch out for in particular is if the unit is
installed so that the slope is not in the direction of the drain
piping, this might cause leaking.) (Fig. 3-12)
Level
Vinyl hose
Fig. 3-12
(6) Tighten the upper nut.
3-6. Installing the Drain Pipe
(1) Prepare standard hard PVC pipe VP20 (O.D. 26 mm) for the
drain and use the supplied hose band to prevent water leaks.
(Fig. 3-13)
The PVC pipe must be purchased separately.
The transparent drain part on the unit allows you to check
drainage.
(
45°
)
Unit drain port Hose band (supplied)
Drain hose (supplied)
Do not use adhesive.
Adhere with PVC adhesive.
Drain insulator (supplied)
Vinyl tape
Drain insulator
Vinyl tape
Hose band
Drain insulator Hose band
Unit: mm
Hard PVC pipe
(VP20 not supplied)
Fig. 3-13
CAUTION
● Attach so that the hose band fastener is on the side of the
drain port. (Fig. 3-13)
● Attach the hose bands so that each is approximately 5 to 25
mm from the end of the supplied drain hose. (Fig. 3-13)
● Do not use adhesive at the drain connection port on the
indoor unit.
● Insert the drain pipe until it contacts the socket, as
shown in the figure above, then secure it tightly with the
hose band.
● Do not use the supplied drain hose bent at a 90° angle.
(The maximum permissible bend is 45°.)
N OT E
Make sure the drain pipe has a downward gradient (1/100 or
more) and that there are no water traps.
CAUTION
● Do not install an air bleeder as this may cause water to
spray from the drain pipe outlet. (Fig. 3-14)
Air bleeder
Prohibited
Fig. 3-14
● Make sure that the drain port is not a downward gradient
from the joint section (may lead to abnormal noise). (Fig.
3-15)
● If it is necessary to increase the height of the drain pipe,
the section directly after the connection port can be
raised a maximum of 500 mm. Do not raise it any higher
than 500 mm, as this could result in water leaks. (Fig.
3-15)
At least 1/100
Good
300 mm or less
(not a downward gradient)
500 mm or less
Fig. 3-15
II_F616496_EU_L_2.indb 10 2014-10-24 13:53:55

11
ENGLISH
● Do not install the pipe with an upward gradient from the
connection port. This will cause the drain water to flow
backward and leak when the unit is not operating. (Fig.
3-16)
Upward gradient
Prohibited
Fig. 3-16
● 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. 3-17)
Support pieces
Fig. 3-17
3-7. Checking the Drainage
After 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) Remove the eyelet cap and through the opening, slowly pour
about 500 cc of water into the drain pan to check drainage.
(3) Short the check pin (CHK) on the indoor control board and
operate the drain pump. Check the water flow through the
transparent drain port and see if there is any leakage. (Fig.
3-19)
CAUTION
Be careful since the fan will start when you short the pin on
the indoor control board.
(4) When the check of drainage is complete, open the check pin
(CHK) and remount the insulator and drain cap onto the drain
inspection port.
Water inlet
Wiring port
Eyelet cap
Fig. 3-18
Indoor control board
TP6
CN112
CN111
CN110
WHT
YEL
RED
TP3
EMG
CN062
CHK
CN063 DISP CN064
CN073
TEST
EXCT
FILTER
OC RC
CN044 CN040
CN041
FAN-TAP
TP1
IC010
IC001
T5A E250V
JP001
JP040
Check pin (CHK: CN062)
Fig. 3-19
II_F616496_EU_L_2.indb 11 2014-10-24 13:53:56

12
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.
WARNING
(2) This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual Current
Device (RCD). Otherwise, it may cause electrical shock and fire in case of equipment breakdown or insulation breakdown.
Earth Leakage Circuit Breaker (ELCB) must be incorporated in the fixed wiring in accordance with the wiring regulations. The
Earth Leakage Circuit Breaker (ELCB) 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
M1 Max. 130 m 10-16 A
Control wiring
(C) Inter-unit
control wiring
(between outdoor
and indoor units)
(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)
N OT E
* With ring-type wire terminal.
II_F616496_EU_L_2.indb 12 2014-10-24 13:53:56

13
ENGLISH
4-3. Wiring System Diagrams
N OT E
(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).
L N U1 U2 R1 R2
6P terminal board
Type M1
Power
supply Remote
control
line
Unit
control
line
Fig. 4-2
Fig. 4-1
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
ex.) Type MF2
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:
II_F616496_EU_L_2.indb 13 2014-10-24 13:53:57

14
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 mm2 flexible cord. Type designation 60245 IEC57
(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
II_F616496_EU_L_2.indb 14 2014-10-24 13:53:58

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
■ 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
Clamper inside the box for
Remote Control Wiring and
Inter-unit Control Wiring
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)
Clamper on the front
side for Power Supply
Clamping Clip
Inter-unit Control Wiring
Wire Saddle
Power Supply
Wire Saddle
Power Supply
Supplied Clamper *
* Route the power supply cord through the ring of
the supplied wire saddle and clamp the cord.
Remote Control Wiring
Inter-unit Control Wiring
Remote Control Wiring
Type M1
■ 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)
II_F616496_EU_L_2.indb 15 2014-10-24 13:54:00

16
5. HOW TO PROCESS TUBING
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
N OT E
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
N OT E
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.
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
Indoor unit type 15 22 28 36 45 56
Gas tubing (mm) ø12.7
Liquid tubing (mm) ø6.35
(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
II_F616496_EU_L_2.indb 16 2014-10-24 13:54:01

17
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
ø12.7 (1/2") 49 – 61 N · m
{490 – 610 kgf · cm} 0.8 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
Insulation of the flare nuts
Attach the flare insulator (supplied) just like wrapping around
the flare nut (supplied). Match the both slits of flare insulators
for gas and liquid tubes facing upward. Tightly attach the end of
the flare insulators to the tube cradle without any space. Then
clamp the flare insulator with the clampers about 20 mm away
from both ends.
Flare insulator (for gas tube)
Flare insulator
(for liquid tube)
Tube cradle
Facing upward
Liquid tubing
Gas tubing
Insulator (not supplied) Without any space
Tube cradle
Indoor unit
side
Outdoor unit
side
About 20 mm
About 20 mm
Clamper
Clamper Flare nut
(supplied)
Fig. 5-8
N OT E
Tighten the clampers to prevent any condensation that may
occur as the copper tubing is exposed.
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.
II_F616496_EU_L_2.indb 17 2014-10-24 13:54:02

18
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)
N OT E
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.
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)
Insulated tubes
Drain hose
Clamp
Apply putty here
Tubing
Fig. 5-9
Fig. 5-10
6. HOW TO INSTALL THE TIMER REMOTE CONTROLLER OR HIGH-SPEC WIRED
REMOTE CONTROLLER (OPTIONAL PART)
N OT E
Refer to the Operating Instructions attached to the optional Timer Remote Controller or optional High-spec Wired Remote Controller.
7. HOW TO INSTALL WIRELESS REMOTE CONTROLLER RECEIVER
N OT E
Refer to the Operating Instructions attached to the optional Wireless Remote Controller Receiver.
II_F616496_EU_L_2.indb 18 2014-10-24 13:54:02

19
ENGLISH
8. EXTERNAL STATIC PRESSURE SETTING
Choose one of the methods (selection of “a”, “b”, “c” within the range of dotted line as shown in the flowchart below)
and make settings.
a. No setting changes:
When using as it is factory preset at shipment.
(If resetting after external static pressure setting once, it might be different from factory preset.)
b. Manual setting (on PCB):
This is static pressure setting excepting factory preset at shipment. Dip switch select method.
c. Manual setting (by wired remote controller):
Static pressure setting excepting factory preset at shipment.
Flow of External Static Pressure
N OT E
(1) Refer to Table 8-2 and Fig. 8-2 for details on the relationship between the value of item code “5d” and the external static pressure.
(2) When set in group control (connecting multiple indoor units with one wired remote controller), set each indoor unit to item code “5d”.
When amending the setting after selecting [ b. Manual setting] (due to airflow path changes, etc.), it is necessary to cancel [b.
Manual setting] (switching OFF positions).
When [b. Manual setting] has not been cancelled, [c. Manual setting] will be activated if selected, but [b. Manual setting] takes
precedence when the power is switched back on after power outages, etc.
CAUTION
● Make sure the external static pressure is in a range of specifications.
Then proceed the external static pressure setting.
Improper settings can cause noise, a shortage of airflow volume and water leakage.
Refer to Fig. 8-2 for the external static pressure setting range.
● Be sure to set the [External Static Pressure Setting] once again after amending the airflow path
for the duct or air outlet after setting the external static pressure.
Start of external static pressure setting
Is it designed and
installed at the setting line
at shipment
on PQ line drawing?
Operating by
wired remote
controller
Selection methods
of external static
pressure setting
No
No
Yes
Yes
a. No setting changes
b. Manual setting
(Setting on PCB)
Setting switches of TP3
Refer to section "8-1. How to
set on PC Board".
c. Manual setting
Item code 5d : Setting 3
(*Note 1) (*Note 2)
Refer to section 8-2. or 8-3.
Completion of external static pressure setting
II_F616496_EU_L_2.indb 19 2014-10-24 13:54:03

20
8-1. How to Set on PC Board
1. Turn off the power breaker to halt the supply of electricity to
the PC board.
2. Open the cover of the electrical box and confirm that there is
the indoor unit control PC board in it.
When using with high static pressure mode, set the indoor unit
control PC board as shown in Fig. 8-1.
3. Connect the short circuit connector to the short circuit pin
TP3 (2P: Yellow) of the indoor unit control board.
● In the case of wired remote control setting, do not use
the short circuit connector.
Table 8-2 Setting the external static pressure
Indoor unit Item code
15 22 28 36 45 56
External static pressure of the rated air flow
volume (Pa)
10 15 15
30 30 40
6
2
1 5 14
3
NOTE:
Failure to set this parameter may result in decreased airflow
and condensation.
8-2. Operating the Timer Remote Controller
(CZ-RTC2)
8-2-1. How to set the external static pressure
1. Press and hold down the , and buttons
simultaneously for 4 or more seconds.
( , the Unit No., Item Code and Detailed Data will
blink on the LCD display.)
2. The indoor unit numbers in the group control will be
sequentially displayed whenever the Unit Select button is
pressed .
Only the fan motor for the selected indoor unit will operate
during this time.
3. Specify the “ ” item code by pressing the
/ buttons for the temperature setting
buttons and confirm the values.
(“ ” set at shipment )
4. Press the / buttons for the time to amend the
values for the set data.
Refer to Table 8-2 and Fig. 8-2 and select a value “ ”.
5. Press the button.
The display will stop blinking and remain illuminated.
6. Press the button. The fan motor will stop operating and
the LCD display will return to the normal stop mode.
TP6
CN112
CN111
CN110
WHT
YEL
RED
TP3
EMG
CN062
CHK
CN063 DISP CN064
CN073
TEST
EXCT
FILTER
OC RC
CN044 CN040
CN041
FAN-TAP
TP1
IC010
IC001
T5A E250V
JP001
JP040
TP6 TP3 TP1
Indoor Unit control PC board
Fig. 8-1
CZ-RTC2
White Yellow Red
Table 8-1 External static pressure
Type 15 22 28 36 45 56
Standard (Pa) (shipment) 10 15 15
High static pressure (Pa) 30 30 40
II_F616496_EU_L_2.indb 20 2014-10-24 13:54:08