Panasonic S-M20PY3E User manual

Model No.
Indoor Units
Type Rated Capacity 20 25 36 50 60
Indoor Units Type
Y3 4-Way Cassette 60 × 60 S-M20PY3E S-25PY3E S-36PY3E S-50PY3E S-60PY3E
(CZ-KPY4)*
* 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.
WEB-ACXF60-40970-EN
Air Conditioner
This air conditioner uses the refrigerant R32.
INSTALLATION INSTRUCTIONS
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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:
•This Installation Instructions is for the indoor unit and
read the Installation Instructions of the outdoor unit as
well.
•Carefully read this instruction booklet before beginning.
•This air conditioner is required to have the remote
controller which is adaptable to nanoe™ X function.
•Follow each installation or repair step exactly as shown.
•This air conditioner shall be installed in accordance with
National Wiring Regulations.
•That compliance with national gas regulations shall be
observed.
•The product meets the technical requirements of
EN/IEC 61000-3-3.
•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.
WARNING
•Do not use means to accelerate the defrosting process or to clean, other than
those recommended by the manufacturer.
•The appliance shall be stored in a room without continuously operating ignition
sources (for example: open flames, an operating gas appliance or an operating
electric heater).
•Do not pierce or burn.
•Be aware that refrigerants may not contain an odour.
•
The following checks shall be applied to installations using flammable refrigerants.
Appliance shall be installed, operated and stored in a room with a floor area larger
than [Amin] m2.
As for [Amin], see Section “12. CHECK OF DENSITY LIMIT”.
SPECIAL PRECAUTIONS
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 by 3 mm 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.
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•Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration,
sharp edges or any other adverse environmental effects.
The check shall also take into account the effects of aging or continual vibration from
sources such as compressors or fans.
•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
•It may need two or more people to carry out the installation work.
•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 Storing…
WARNING
•The appliance shall be stored in a well-ventilated area where the room size
corresponds to the room area as specified for operation.
•The appliance shall be stored in a room without continuously operating open
flames (for example: an operating gas appliance) and ignition sources (for
example: an operating electric heater).
•The appliance shall be stored so as to prevent mechanical damage from occurring.
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 cases that require mechanical ventilation, ventilation openings shall be kept clear of
obstruction.
•An unventilated area where the appliance using flammable refrigerants is installed shall
be so constructed that should any refrigerant leak, it will not stagnate so as to create a
fire or explosion hazard.
…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 2.2 m
Installation height for indoor unit shall be at least 2.2 m.
…In laundry rooms
Do not install in laundry rooms. Indoor unit is not drip proof.
When Connecting Refrigerant Tubing
Pay particular attention to refrigerant leakages.
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WARNING
•
When performing piping work, do not mix air except for specified refrigerant in
refrigeration cycle. It causes capacity down, and risk of explosion and injury due to
high tension inside the refrigerant cycle.
•If the refrigerant comes in contact with a flame, it produces toxic gases and fire.
•Do not add or replace refrigerant other than specified type. It may cause product
damage, burst and injury, etc.
•Ventilate the room immediately in the event of a refrigerant gas leakage during
installation. Be careful not to allow contact of the refrigerant gas with a flame as this will
cause the generation of toxic gases and fire.
•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.
•Under no circumstances shall potential sources of ignition be used in the searching or
detection of refrigerant leaks.
•A halide torch (or any other detector using a naked flame) shall not be used.
•Electronic leak detectors may be used to detect refrigerant leaks but, the sensitivity
may not be adequate, or may need re-calibration. (Detection equipment shall be
calibrated in a refrigerant-free area.)
•Ensure that the detector is not a potential source of ignition and is suitable for the
refrigerant used.
•Leak detection equipment shall be set at a percentage of the lower flammable limit
(LFL) of the refrigerant and shall be calibrated to the refrigerant employed and the
appropriate percentage of gas (25% maximum) is confirmed.
•Leak detection fluids are suitable for use with most refrigerants but the use of
detergents containing chlorine shall be avoided as the chlorine may react with the
refrigerant and corrode the copper pipe-work.
•If a leak is suspected, all naked flames shall be removed/extinguished.
•If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be
recovered from the system, or isolated (by means of shut off valves) in a part of the
system remote from the leak. Oxygen free nitrogen (OFN) shall then be purged through
the system both before and during the brazing process.
When Servicing
•Contact the sales dealer or service dealer for a repair.
•Be sure to turn off the power before servicing.
•Turn the power OFF at the main power box (mains), wait at least 5 minutes until it
is discharged, then open 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.
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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 a repair and disposal.
CAUTION
•Ventilate any enclosed areas when installing or testing the refrigeration system.
Leaked refrigerant gas, on contact with fire or heat, can produce dangerously toxic
gases.
•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 toxic gases and fire.
Others
When disposal of the product, do follow the precautions referring to Section “Recovery”
in the installation instructions supplied with the outdoor unit and comply with national
regulations.
WARNING
•Do not sit or step on the unit. You may fall down accidentally.
CAUTION
•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.
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SERVICING
CAUTION
•Any qualified person who is involved with working on or breaking into a refrigerant
circuit should hold a current valid certificate from an industry-accredited
assessment authority, which authorizes their competence to handle refrigerants
safely in accordance with an industry recognised assessment specification.
•Servicing shall only be performed as recommended by the equipment
manufacturer. Maintenance and repair requiring the assistance of other skilled
personnel shall be carried out under the supervision of the person competent in
the use of flammable refrigerants.
•Servicing shall be performed only as recommended by the manufacturer.
•Prior to beginning work on systems containing flammable refrigerants, safety
checks are necessary to ensure that the risk of ignition is minimised. For repair to
the refrigerating system, (2) to (6) shall be completed prior to conducting work on
the system.
(1) Work shall be undertaken under a controlled procedure so as to minimise the risk
of a flammable gas or vapour being present while the work is being performed.
(2) All maintenance staff and others working in the local area shall be instructed on
the nature of work being carried out. Work in confined spaces shall be avoided.
The area around the workspace shall be sectioned off. Ensure that the conditions
within the area have been made safe by control of flammable material.
(3) The area shall be checked with an appropriate refrigerant detector prior to and
during work, to ensure the technician is aware of potentially toxic or flammable
atmospheres. Ensure that the leak detection equipment being used is suitable
for use with all applicable refrigerants, i.e. non-sparking, adequately sealed or
intrinsically safe.
(4) If any hot work is to be conducted on the refrigerating equipment or any
associated parts, appropriate fire extinguishing equipment shall be available to
hand. Have a dry powder or CO2fire extinguisher adjacent to the charging area.
(5) No person carrying out work in relation to a refrigerating system which involves
exposing any pipe work shall use any sources of ignition in such a manner
that it may lead to the risk of fire or explosion. All possible ignition sources,
including cigarette smoking, should be kept sufficiently far away from the site
of installation, repairing, removing and disposal, during which refrigerant can
possibly be released to the surrounding space. Prior to work taking place, the
area around the equipment is to be surveyed to make sure that there are no
flammable hazards or ignition risks. “No Smoking” signs shall be displayed.
(6) Ensure that the area is in the open or that it is adequately ventilated before
breaking into the system or conducting any hot work. A degree of ventilation shall
continue during the period that the work is carried out. The ventilation should
safely disperse any released refrigerant and preferably expel it externally into the
atmosphere.
(7) Where electrical components are being changed, they shall be fit for the purpose
and to the correct specification. At all times the manufacturer’s maintenance
and service guidelines shall be followed. If in doubt, consult the manufacturer’s
technical department for assistance.
•The actual refrigerant charge is in accordance with the room size within which
the refrigerant containing parts are installed.
•The ventilation machinery and outlets are operating adequately and are not
obstructed.
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•Marking to the equipment continues to be visible and legible. Markings and signs
that are illegible shall be corrected.
•Refrigerating pipe or components are installed in a position where they are
unlikely to be exposed to any substance which may corrode refrigerant
containing components, unless the components are constructed of materials
which are inherently resistant to being corroded or are suitably protected against
being so corroded.
(8) Repair and maintenance to electrical components shall include initial safety
checks and component inspection procedures. If a fault exists that could
compromise safety, then no electrical supply shall be connected to the circuit until
it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is
necessary to continue operation, an adequate temporary solution shall be used.
This shall be reported to the owner of the equipment so all parties are advised.
Initial safety checks shall include:
•That capacitors are discharged. This shall be done in a safe manner to avoid
possibility of sparking.
•That no live electrical components and wiring are exposed while charging,
recovering or purging the system.
•That there is continuity of earth bonding.
•During repairs to sealed components, all electrical supplies shall be disconnected
from the equipment being worked upon prior to any removal of sealed covers, etc.
•Particular attention shall be paid to the following to ensure that by working on
electrical components, the casing is not altered in such a way that the level of
protection is affected. This shall include damage to cables, excessive number of
connections, terminals not made to original specification, damage to seals, incorrect
fitting of glands, etc.
•Ensure that apparatus is mounted securely.
•Ensure that seals or sealing materials have not degraded such that they no longer
serve the purpose of preventing the ingress of flammable atmospheres.
•Replacement parts shall be in accordance with the manufacturer’s specifications.
NOTE:
The use of silicon sealant may inhibit the effectiveness of some types of leak
detection equipment. Intrinsically safe components do not have to be isolated prior
to working on them.
•Do not apply any permanent inductive or capacitance loads to the circuit without
ensuring that this will not exceed the permissible voltage and current permitted for
the equipment in use.
•Intrinsically safe components are the only types that can be worked on while live in
the presence of a flammable atmosphere.
•The test apparatus shall be at the correct rating.
•
Replace components only with parts specified by the manufacturer. Unspecified parts
by manufacturer may result ignition of refrigerant in the atmosphere from a leak.
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REMOVAL AND EVACUATION
CAUTION
•When breaking into the refrigerant circuit to make repairs – or for any other
purpose – conventional procedures shall be used.
However, it is important that best practice is followed since flammability is a
consideration.
The following procedure shall be adhered to:
•Remove refrigerant.
•Purge the circuit with inert gas.
•Evacuate.
•Purge again with inert gas.
•Open the circuit by cutting or brazing.
•The refrigerant charge shall be recovered into the correct recovery cylinders.
•
The system shall be “flushed” with Oxygen free nitrogen (OFN) to render the unit safe.
•This process may need to be repeated several times.
•Compressed air or oxygen shall not be used for this task.
•Flushing shall be achieved by breaking the vacuum in the system with OFN
and continuing to fill until the working pressure is achieved, then venting to
atmosphere, and finally pulling down to a vacuum.
•This process shall be repeated until no refrigerant is within the system.
•When the final OFN charge is used, the system shall be vented down to
atmospheric pressure to enable work to take place.
•This operation is absolutely vital if brazing operations on the pipe work are to take
place.
•Ensure that the outlet for the vacuum pump is not close to any potential ignition
sources and there is ventilation available.
CHARGING PROCEDURES
NOTE:
Refer to the Installation Instructions attached to the outdoor unit.
DECOMMISSIONING
CAUTION
•Before carrying out this procedure, it is essential that the technician is completely
familiar with the equipment and all its details.
•It is recommended good practice that all refrigerants are recovered safely.
•Prior to the task being carried out, an oil and refrigerant sample shall be taken in
case analysis is required prior to re-use of recovered refrigerant.
•It is essential that electrical power is available before the task is commenced.
a) Become familiar with the equipment and its operation.
b) Isolate system electrically.
c) Before attempting the procedure ensure that:
•Mechanical handling equipment is available, if required, for handling
refrigerant cylinders.
•All personal protective equipment is available and being used correctly.
•The recovery process is supervised at all times by a competent person.
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•Recovery equipment and cylinders conform to the appropriate standards.
d) Pump down refrigerant system, if possible.
e) If a vacuum is not possible, make a manifold so that refrigerant can be removed
from various parts of the system.
f) Make sure that cylinder is situated on the scales before recovery takes place.
g) Start the recovery machine and operate in accordance with instructions.
h) Do not overfill cylinders. (No more than 80% volume liquid charge).
i) Do not exceed the maximum working pressure of the cylinder, even temporarily.
j) When the cylinders have been filled correctly and the process completed, make
sure that the cylinders and the equipment are removed from site promptly and
all isolation valves on the equipment are closed off.
k) Recovered refrigerant shall not be charged into another refrigerating system
unless it has been cleaned and checked.
•Electrostatic charge may accumulate and create a hazardous condition when
charging or discharging the refrigerant.
To avoid fire or explosion, dissipate static electricity during transfer by grounding
and bonding containers and equipment before charging / discharging.
RECOVERY
NOTE:
Refer to the Installation Instructions attached to the outdoor unit.
NOTICE
The English text is the original instructions. Other languages are translations of the original instructions.
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IMPORTANT ........................2
Please Read Before Starting
1. GENERAL ......................11
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...........................13
2-1. Indoor Unit
3. HOW TO INSTALL THE INDOOR
UNIT ..........................14
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
60 × 60 Type
4. ELECTRICAL WIRING ............21
4-1. General Precautions on Wiring
4-2. Wire Length and Wire Diameter for Power
Supply System
4-3. Wiring System Diagrams
5. HOW TO PROCESS TUBING .......34
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) .........................38
NOTE
Refer to the Installation Instructions attached
to the optional Timer Remote Controller or
optional High-spec Wired Remote Controller.
7. HOW TO INSTALL THE PANEL FOR
CASSETTE .....................39
7-1. Preparation for Panel for Cassette
Installation
7-2. How to Install the Panel for Cassette
7-3. Others
8. HOW TO INSTALL WIRELESS REMOTE
CONTROLLER ..................46
NOTE
Refer to the Installation Instructions attached to
the optional Wireless Remote Controller.
9. TEST RUN......................47
9-1. Precautions
9-2. Test Run Procedure
9-3. Items to Check Before the Test Run
9-4. Check the Combination (wiring) of Indoor
and Outdoor Units
9-5. Address Setting : 2-LINE CONNECTION
9-6. Address Setting : 3-LINE CONNECTION
9-7. Auto Address Setting Using the Remote
Controller
9-8. How to Set Refrigerant System Address
(Only outdoor PZ2 and PZH2 series)
9-9. Checking the Indoor Unit Addresses
9-10. Test Run Using the Remote Controller
9-11. Main-Sub Remote Controller Control
10. CHECKLIST AFTER INSTALLATION
WORK .........................70
11. APPENDIX .....................71
■Care and Cleaning
■Troubleshooting
■Tips for Energy Saving
Important Information Regarding
The Refrigerant Used ............74
NOTE
Refer to the Installation Instructions attached to
the outdoor unit.
12. CHECK OF DENSITY LIMIT........75
SUPPLEMENT .....................76
INSTALLATION INSTRUCTION
SUPPLEMENT .....................79
Page Page
CONTENTS
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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.
The installation of pipe-work shall be kept to a minimum.
WARNING
This symbol shows that this equipment uses a flammable refrigerant. If the
refrigerant is leaked, together with an external ignition source, there is a
possibility of ignition.
CAUTION This symbol shows type of flammable refrigerant contained in the system.
CAUTION This symbol shows that the Operating Instructions should be read carefully.
CAUTION This symbol shows that a service personnel should be handling this
equipment with reference to the Technical Manual.
CAUTION This symbol shows that there is information included in the Operating
Instructions and/or Installation Instructions.
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
Full-scale
installation
diagram
1Printed on
container box
Washer 8For suspension
bolts
Screw 4
For full-scale
installation
diagram
Flare insulator 1 For liquid tube
Flare insulator 1 For gas tube
Drain hose 1
Hose band 1For securing
drain hose
Packing 2 70 × 220 (mm)
Packing 2 30 × 500 (mm)
Drain
insulator 1
Clamper 4For electrical
wiring
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Part Name Figure Q’ty Remarks
Operating
Instructions 1
Installation
Instructions 1
As for S-60PY3E, the following
accessories are additionally provided.
Part Name Figure Q’ty Remarks
Different-
diameter-tube
joint
1Gas socket tube A :
ø15.88 →ø12.7
1
Liquid socket tube B :
ø9.52 →ø6.35
Insulating
tape 2
For gas and liquid
tube flare nuts
●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.
See Section “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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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 airflow around the unit.
●the limitation of the tubing length between the indoor and the outdoor units should be
referred to the Installation Instructions of 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 inside of the ceiling is high temperature and high humidity, apply the polyethylene foam
or other materials of minimum thickness of 10 mm or more to the unit.
4-Way Cassette 60 × 60 Type
0.5 m
0.5 m
0.5 m
0.5 m
Obstacles
min. 3 m
min. 1.5 m
min.
0.5 m
Indoor unit Air outlet, fire alarm
Ceiling
Over 2.2 m
min. 1 m
Wall
min. 0.25 m
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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
3. HOW TO INSTALL THE INDOOR UNIT
(3) Determine the pitch of the suspension bolts using the supplied full-scale installation diagram
(printed on container box).
The diagram 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.
Hole-in-anchor
Hole-in-plug Concrete Insert
Suspension bolt
(M10 or 3/8”)
(field supply)
(1) Fix the suspension bolts securely in the
ceiling using the method shown in the
diagrams, 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 the diagram to make the holes in the ceiling.
Install the inspection opening on the electrical component box side where maintenance and
inspection of the electrical component box and drain pump are easy.
* The overlapping portion between the ceiling and panel for cassette should be kept over 20 mm.
Refrigerant tubing joint (liquid side)
Drain outlet (other side)
(VP20)
Refrigerant tubing joint (gas side)
* Over 20 mm
34 mm 186 mm
625 mm
575 mm
193 mm
144 mm
103 mm
112 mm
184 mm
243 mm
30 mm
Suspension lug
Indoor Unit
View from top
B: 585 ~ 600 mm
A: (suspension bolt pitch)
B: (ceiling opening dimension)
Electrical component box
Over 100 mm
Inspection access
450 mm × 450 mm
(Field supply)
A: 530 mm
B: 585 ~ 600 mm
A: 530 mm
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3-3. Placing the Unit Inside the Ceiling
This air conditioner is designed to be installed on the system ceiling.
Care must be taken before installation so that the maintenance or relocation can be done
instantly.
This unit is equipped with the drain pump. Check a tape measure or carpenter’s level.
Before installing the panel for cassette, complete the work of drain pipe and refrigerant
tube installation.
(1) When placing the unit inside the ceiling, determine the pitch of the suspension bolts using
the supplied full-scale installation diagram.
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.
If there is a ceiling opening, install the indoor unit’s electrical component box side first in the
opening portion.
H
Indoor unit
Electrical component box
Full-scale installation diagram
(printed on top of container box)
Indoor unit
Indoor unit
Paper model for
installation
Paper model
for installation
Screw for attaching
paper
(4 points)
Open the ceiling board as large as
this paper outline
Ceiling board
Ceiling board
Over 18 mm
13 ~ 18 mm
H :
If the roof space is 285 mm or more in height, it is
possible to remove the grid system ceiling panel and
place the unit inside the system ceiling.
If the roof space is more than 250 mm and less
than 285 mm in height, first remove the grid system
ceiling panel and T-Bar supporting the system ceiling
temporarily, and then place the unit inside the ceiling.
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(3) Thread the 3 hexagonal nuts and 2 washers
onto each of the 4 suspension bolts. 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 13 to 18 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.
3-4. How to Process Tubing
See Section “5. HOW TO PROCESS TUBING”.
Nuts and washers
(use for upper and lower)
Double nut
13 ~ 18 mm
Notch
Suspension lug
Suspension bolt
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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 of the ceiling.
Do not attempt to raise it higher than 850 mm.
Doing so will result in water leakage.
(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.
● Do not install an air bleeder as this may cause
water to spray from the drain pipe outlet.
● Do not provide U-trap or bell-shaped trap in the
middle of the drain pipe. Doing so will cause
abnormal sound.
● Make sure the drain pipe has a downward
gradient (1/100 or more; downward from drain
port connection).
(3) Limitations of Drain Hose Connection
CAUTION
● Do not bend the supplied drain hose 90° or
more.
Bend it less than 45°.
● Do not make a trap in the middle of the
supplied drain hose. Doing so will cause
abnormal sound.
* Length of supplied drain pipe = 250 mm
A
B
300 mm or less
Indoor unit
Bottom of the Ceiling board
A : 850 mm or lower
B : 666 mm or lower
(as short as possible)
Indoor unit
Air bleeder prohibited
Trap prohibited
Upward gradient
prohibited
Indoor
unit
Separation of support bracket = 1.5 m ~ 2 m
Downward gradient = 1/100 or more
Bend angle 90° prohibited Bend angle less than 45°
Trap prohibited
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18
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 uneven surface 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. See diagram below.
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.)
5) Apply approx. 2 gof adhesive on both sides of the drain hose without connection of the hard
PVC socket and the hard PVC pipe joint (VP20) in the field supply.
6) Connect the drain hose and the hard PVC pipe joint so that the adhesive area of both sides
can be overlapped.
Wipe off the protrusion-adhesive with a soft cloth.
Drain port
(Drainage check section
on drain port, transparent)
Do not use adhesive here.
* Drain port may possibly
be damaged and cause
the water leakage if PVC
adhesive is used.
* After checking the drainage, wrap the supplied packing and drain pipe insulator around the pipe.
Fasten the hose band as shown the diagram
below. (Torque: 2.5 N·m - 3.4 N·m)
57 mm
20 mm or more
Drain insulator
(supplied)
Note:
Be sure to tightly insert the hard PVC pipe joint
(including elbow) minimum 20 mm or more.
* However, do not use the hard PVC pipe joint
allowable more than 55 mm insertion. Packing
(supplied)
Adhere with PVC adhesive.
* Apply approx. 2 gof adhesive on both
sides of supplied the drain hose and the
hard PVC pipe joint (VP20) in the field
supply. Wipe off the protrusion-adhesive
with a soft cloth.
Hard PVC pipe joint
(VP20 field supplied)
Hard PVC socket Hose band (supplied)
Soft PVC socket
Drain hose
(supplied)
Uneven surface
Protrusion
Indoor unit
Indoor unit
Uneven surface
Push into protrusion part.
5 mm
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3-5-3. Checking the Drainage
Be careful since the fan will start when you short the pin on the indoor
unit control PCB.
After wiring (see Section “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 (L/1, N/2 terminals) inside the electrical
component box.
(2) Slowly pour about 1 L of water into the drain pan to check drainage.
Drainage check
Over
100 mm
Plastic container
for water intake
Water (Approx. 1 L)
Drain pan outlet
(3) Short the check pin (CHK) (6P : 1-4) on the indoor unit control PCB and operate the drain
pump. Check the water flow through the transparent drain pipe and see if there is any
leakage.
* If the check pin (CHK) (6P : 1-4) is shorted, the fan starts rotating at high speed and could
cause injury.
(4) When the check of drainage is complete, open the check pin (CHK) (6P : 1-4) and remount
the tube cover.
(5) Checkpoint after installation
After installation of indoor and outdoor units, panels and electrical wiring, check Section
“10. CHECKLIST AFTER INSTALLATION WORK”.
CAUTION
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3-6. Important Note for Wiring 4-Way Cassette 60 × 60 Type
(1) The power supply inlet is located at the lower
area of the refrigerant tubing side.
The electrical component box is located at the
refrigerant tubing side.
(2) Before installing the panel for cassette, be sure
to carry out the wiring connection.
(3) Remove the lid located on the electrical
component box by unscrewing the screws
(M4 × L6) (×4).
(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 panel for
cassette. 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.
See Section “4. ELECTRICAL WIRING”.
< When connecting to optional parts >
●Connecting to Schedule Timer or Seri-Para I/O Unit
Connect the wire from Schedule Timer or Seri-Para I/O Unit to the indoor unit control PCB
T10 (CN061, Yellow) and functional ground screw.
Power supply inlet
Screws (M4 × L6) position
Functional
ground screw
Power wiring (T10)
Service entrance
Clamper (supplied):
Wind the drain pump wiring and ferrite core by the
clamper and band them together to avoid noise caused
by vibration as a result of the ferrite core riding on the
metal plate.
Metal plate T10
Ferrite Core
Drain pump wiring
Clamper
(supplied)
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