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AIR CONDITIONER (MULTI TYPE)
Installation Manual
Outdoor Unit
For commercial use
Model name:
<Heat Pump Model>
MCY-MAP0401HT
MCY-MAP0501HT
MCY-MAP0601HT
MCY-MAP0401HT2D
MCY-MAP0501HT2D
MCY-MAP0601HT2D
MCY-MAP0401HTZ
MCY-MAP0501HTZ
MCY-MAP0601HTZ
MCY-MAP0401HT2DZ
MCY-MAP0501HT2DZ
MCY-MAP0601HT2DZ
MCY-MAP0401HTZG
MCY-MAP0501HTZG
MCY-MAP0601HTZG
MCY-MAP0401HT2DZG
MCY-MAP0501HT2DZG
MCY-MAP0601HT2DZG
Installation Manual
English
–1–
Original instruction
ADOPTION OF NEW REFRIGERANT
This Air Conditioner uses R410A an environmentally friendly refrigerant.
Contents
Thank you for purchasing this Toshiba air conditioner.
This Installation Manual describes the installation method of the outdoor unit. For installation of indoor units, follow the
Installation Manual supplied with the indoor unit.
Moreover, as this installation manual includes the important articles concerning the “Machinery” Directive (Directive 2006/42/
EC), please read through the manual and make sure you understand it. After installation, give this Installation Manual, the
Owner’s Manual and the Installation Manual supplied with the indoor unit to the customer and tell the customer to keep them
safe.
Prepare an exclusive power source for indoor units, independent to that for outdoor units.
Y-shaped branching joints or a branching header (separately purchased) are required for connecting pipes between indoor and
outdoor units. Choose either of them considering the system capacity concerning piping. For installing branching pipes, refer to
the installation manual of the Y-shaped branching unit or branching header (separately purchased).
1 Precautions for safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Generic Denomination: Air Conditioner
2 Accessory parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Definition of Qualified Installer or Qualified Service Person
3 Installation of new refrigerant air conditioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified service person.
When any of these jobs is to be done, ask a qualified installer or qualified service person to do them for you.
A qualified installer or qualified service person is an agent who has the qualifications and knowledge described in the table
below.
4 Selection of installation place. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Agent
5 Refrigerant piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Qualifications and knowledge which the agent must have
Qualified installer
• The qualified installer is a person who installs, maintains, relocates and removes the air conditioners made by
Toshiba Carrier Corporation. He or she has been trained to install, maintain, relocate and remove the air
conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such
operations by an individual or individuals who have been trained and is thus thoroughly acquainted with the
knowledge related to these operations.
• The qualified installer who is allowed to do the electrical work involved in installation, relocation and removal has
the qualifications pertaining to this electrical work as stipulated by the local laws and regulations, and he or she is
a person who has been trained in matters relating to electrical work on the air conditioners made by Toshiba Carrier
Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have
been trained and is thus thoroughly acquainted with the knowledge related to this work.
• The qualified installer who is allowed to do the refrigerant handling and piping work involved in installation,
relocation and removal has the qualifications pertaining to this refrigerant handling and piping work as stipulated
by the local laws and regulations, and he or she is a person who has been trained in matters relating to refrigerant
handling and piping work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she
has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly
acquainted with the knowledge related to this work.
• The qualified installer who is allowed to work at heights has been trained in matters relating to working at heights
with the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in
such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the
knowledge related to this work.
Qualified service
person
• The qualified service person is a person who installs, repairs, maintains, relocates and removes the air conditioners
made by Toshiba Carrier Corporation. He or she has been trained to install, repair, maintain, relocate and remove
the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such
operations by an individual or individuals who have been trained and is thus thoroughly acquainted with the
knowledge related to these operations.
• The qualified service person who is allowed to do the electrical work involved in installation, repair, relocation and
removal has the qualifications pertaining to this electrical work as stipulated by the local laws and regulations, and
he or she is a person who has been trained in matters relating to electrical work on the air conditioners made by
Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or
individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work.
• The qualified service person who is allowed to do the refrigerant handling and piping work involved in installation,
repair, relocation and removal has the qualifications pertaining to this refrigerant handling and piping work as
stipulated by the local laws and regulations, and he or she is a person who has been trained in matters relating to
refrigerant handling and piping work on the air conditioners made by Toshiba Carrier Corporation or, alternatively,
he or she has been instructed in such matters by an individual or individuals who have been trained and is thus
thoroughly acquainted with the knowledge related to this work.
• The qualified service person who is allowed to work at heights has been trained in matters relating to working at
heights with the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been
instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted
with the knowledge related to this work.
6 Electric wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7 Installation of outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8 Address setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9 Test run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Definition of Protective Gear
When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’
work clothing.
In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed
in the table below.
Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns, electric shocks
and other injuries.
1-EN
2-EN
Work undertaken
1
Protective gear worn
All types of work
Protective gloves
‘Safety’ working clothing
Electrical-related
work
Gloves to provide protection for electricians and from heat
Insulating shoes
Clothing to provide protection from electric shock
Work done at heights
(50 cm or more)
Helmets for use in industry
Transportation of
heavy objects
Shoes with additional protective toe cap
Repair of outdoor unit
Gloves to provide protection for electricians and from heat
WARNING
General
• Before starting to install the air conditioner, read through the Installation Manual carefully, and follow its instructions to install
the air conditioner. Otherwise, falling down of the unit may occur, or the unit may cause noise, vibration or water leakage.
• Only a qualified installer (*1) or qualified service person (*1) is allowed to do installationwork. If installation is carried out by
an unqualified individual, a fire, electric shocks, injury, water leakage, noise and / or vibration may result.
• If using separately sold products, make sure to use Toshiba specified products only. Using unspecified products may cause
fire, electric shock, water leak or other failure.
• Do not use any refrigerant different from the one specified for complement or replacement. Otherwise, abnormally high
pressure may be generated in the refrigeration cycle, which may result in a failure or explosion of the product or an injury
to your body.
• Before opening the service panel of the outdoor unit, set the circuit breaker to the OFF position. Failure to set the circuit
breaker to the OFF position may result in electric shocks through contact with the interior parts. Only a qualified installer
(*1) or qualified service person (*1) is allowed to remove the service panel of the outdoor unit and do the work required.
• Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breakers for both the
indoor and outdoor units to the OFF position. Otherwise, electric shock may result.
• Place a “Work in progress” sign near the circuit breaker while the installation, maintenance, repair or removal work is being
carried out. There is a danger of electric shocks if the circuit breaker is set to ON by mistake.
• Only a qualified installer (*1) or qualified service person (*1) is allowed to undertake work at heights using a stand of 50 cm
or more or to remove the intake grille of the indoor unit to undertake work.
• Wear protective gloves and safety work clothing during installation, servicing and removal.
• Do not touch the aluminium fin of the outdoor unit. You may injure yourself if you do so. If the fin must be touched for some
reason, first put on protective gloves and safety work clothing, and then proceed.
• Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of the outdoor unit and
result in injury.
• When working at height, put a sign in place so that no-one will approach the work location before proceeding with the work.
Parts or other objects may fall from above, possibly injuring a person below. Also, be sure that workers put on helmets.
• When cleaning the filter or other parts of the outdoor unit, set the circuit breaker to OFF without fail, and place a “Work in
progress” sign near the circuit breaker before proceeding with the work.
• When working at heights, put a sign in place so that no-one will approach the work location, before proceeding with the
work. Parts and other objects may fall from above, possibly injuring a person below.
• The refrigerant used by this air conditioner is the R410A.
• You shall ensure that the air conditioner is transported in stable condition. If you find any part of the product broken, contact
your dealer.
• Do not disassemble, modify, repair or move the product yourself. Doing so may cause fire, electric shock, injury or water
leaks. Ask a qualified installer or qualified service person to do any repairs or to move the product.
„ Warning indications on the air conditioner unit
Warning indication
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote
electric power supplies
before servicing.
WARNING
Moving parts.
Do not operate unit with grille
removed.
Stop the unit before the servicing.
CAUTION
High temperature parts.
You might get burned
when removing this panel.
Precautions for safety
The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual.
Description
WARNING
ELECTRICAL SHOCK HAZARD
Disconnect all remote electric power supplies before servicing.
WARNING
Moving parts.
Do not operate unit with grille removed.
Stop the unit before the servicing.
CAUTION
High temperature parts.
You might get burned when removing this panel.
Selection of installation location
CAUTION
Do not touch the aluminum
fins of the unit.
Doing so may result in injury.
CAUTION
BURST HAZARD
Open the service valves before
the operation, otherwise there
might be the burst.
• If you install the unit in a small room, take appropriate measures to prevent the refrigerant from exceeding the limit
concentration even if it leaks. Consult the dealer from whom you purchased the air conditioner when you implement the
measures. Accumulation of highly concentrated refrigerant may cause an oxygen deficiency accident.
• Do not install in a location where flammable gas may leaks are possible. If the gas should leak and accumulate around the
unit, it may ignite and cause a fire.
• When transporting the air conditioner, wear shoes with protective toe caps, protective gloves and other protective clothing.
• When transporting the air conditioner, do not take hold of the bands around the packing carton. You may injure yourself if
the bands should break.
• Install the indoor unit at least 2.5 m above the floor level since otherwise the users may injure themselves or receive electric
shocks if they poke their fingers or other objects into the indoor unit while the air conditioner is running.
• Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner, otherwise it may
cause imperfect combustion.
CAUTION
Do not touch the aluminium fins of the unit.
Doing so may result in injury.
CAUTION
BURST HAZARD
Open the service valves before the operation, otherwise there might be the
burst.
• Places where the operation sound of the outdoor unit may cause a disturbance. (Especially at the boundary line with
a neighbour, install the air conditioner while considering the noise.)
Installation
• Follow the instructions in the Installation Manual to install the air conditioner. Failure to follow these instructions may cause
the product to fall down or topple over or give rise to noise, vibration, water leakage or other failure.
• The designated bolts (M12) and nuts (M12) for securing the outdoor unit must be used when installing the unit.
• Install the outdoor unit property in a location that is durable enough to support the weight of the outdoor unit. Insufficient
durability may cause the outdoor unit to fall, which may result in injury.
• Install the unit in the prescribed manner for protection against strong wind and earthquake. Incorrect installation may result
in the unit falling down, or other accidents.
• Be sure to fix the screws back which have been removed for installation or other purposes.
3-EN
–2–
EN
4-EN
–3–
Refrigerant piping
Relocation
• Install the refrigerant pipe securely during the installation work before operating the air conditioner. If the compressor is
operated with the valve open and without refrigerant pipe, the compressor sucks air and the refrigeration cycles is over
pressurized, which may cause a injury.
• Tighten the flare nut with a torque wrench in the specified manner. Excessive tighten of the flare nut may cause a crack in
the flare nut after a long period, which may result in refrigerant leakage.
• Ventilate the air if the refrigerant gas leaks during installation. If the leaked refrigerant gas comes into contact with fire, toxic
gas may be produced.
• After the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and flows near a
fire source, such as a cooking range, noxious gas may be generated.
• When the air conditioner has been installed or relocated, follow the instructions in the Installation Manual and purge the air
completely so that no gases other than the refrigerant will be mixed in the refrigerating cycle. Failure to purge the air
completely may cause the air conditioner to malfunction.
• Nitrogen gas must be used for the airtight test.
• The charge hose must be connected in such a way that it is not slack.
• If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked refrigerant gas comes
in contact with fire, noxious gas may be generated.
• Only a qualified installer (*1) or qualified service person (*1) is allowed to relocate the air conditioner. It is dangerous for the
air conditioner to be relocated by an unqualified individual since a fire, electric shocks, injury, water leakage, noise and / or
vibration may result.
• When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe. Disconnecting
the refrigerant pipe with the service valve left open and the compressor still operating will cause air or other gas to be sucked
in, raising the pressure inside the refrigeration cycle to an abnormally high level, and possibly resulting in rupture, injury or
other trouble.
• Never recover the refrigerant into the outdoor unit. Be sure to use a refrigerant recovery machine to recover the refrigerant
when moving or repairing. It is impossible to recover the refrigerant into the outdoor unit. Refrigerant recovery into the
outdoor unit may result in serious accidents such as explosion of the unit, injury or other accidents.
(*1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”
CAUTION
Electrical wiring
New Refrigerant Air Conditioner Installation
• Only a qualified installer (*1) or qualified service person (*1) is allowed to carry out the electrical work of the air conditioner.
Under no circumstances must this work be done by an unqualified individual since failure to carry out the work properly may
result in electric shocks and / or electrical leaks.
• When connecting the electrical wires, repairing the electrical parts or undertaking other electrical jobs, wear gloves to
provide protection for electricians and from heat, insulating shoes and clothing to provide protection from electric shocks.
Failure to wear this protective gear may result in electric shocks.
• When executing address setting, test run, or troubleshooting through the checking window on the electrical control box, put
on insulated heat-proof gloves, insulated shoes and other clothing to provide protection from electric shock. Otherwise you
may receive an electric shock.
• Use wiring that meets the specifications in the Installation Manual and the stipulations in the local regulations and laws. Use
of wiring which does not meet the specifications may give rise to electric shocks, electrical leakage, smoking and / or a fire.
• Check that the product is properly earthed. (grounding work)
Incomplete earthing may cause electric shock.
• Do not connect the earth wire to a gas pipe, water pipe, lightning conductor, or a telephone earth wire.
• After completing the repair or relocation work, check that the ground wires are connected properly.
• Install a circuit breaker that meets the specifications in the installation manual and the stipulations in the local regulations
and laws.
• Install the circuit breaker where it can be easily accessed by the agent.
• When installing the circuit breaker outdoors, install one which is designed to be used outdoors.
• Under no circumstances must the power cable be extended. Connection trouble in the places where the cable is extended
may give rise to smoking and / or a fire.
• Electrical wiring work shall be conducted according to law and regulation in the community and installation manual.
Failure to do so may result in electrocution or short circuit.
• Do not supply power from the power terminal block equipped on the outdoor unit to another outdoor unit. Capacity overflow
may occur on the terminal block and may result in fire.
• When carrying out electric connection, use the wire specified in the Installation Manual and connect and fix the wires
securely to prevent them applying external force to the terminals. Improper connection or fixing may result in fire.
• This air conditioner adopts the new hfc refrigerant (R410A) which does not destroy ozone layer.
• The characteristics of R410A refrigerant are; easy to absorb water, oxidizing membrane or oil, and its pressure is approx.
1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also been changed.
Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter the
refrigerating cycle.
• To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the
main unit and installation tools are changed from those for the conventional refrigerant.
• Accordingly the exclusive tools are required for the new refrigerant (R410A).
• For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does not enter.
To Disconnect the Appliance from Main Power Supply.
• This appliance must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.
The installation fuse (all type can be used) must be used for the power supply line of this conditioner.
Test run
• Before operating the air conditioner after having completed the work, check that the electrical control box cover of the indoor
unit and service panel of the outdoor unit are closed, and set the circuit breaker to the ON position. You may receive an
electric shock if the power is turned on without first conducting these checks.
• When you have noticed that some kind of trouble (such as when an error display has appeared, there is a smell of burning,
abnormal sounds are heard, the air conditioner fails to cool or heat or water is leaking) has occurred in the air conditioner,
do not touch the air conditioner yourself but set the circuit breaker to the OFF position, and contact a qualified service
person. Take steps to ensure that the power will not be turned on (by marking “out of service” near the circuit breaker, for
instance) until qualified service person arrives. Continuing to use the air conditioner in the trouble status may cause
mechanical problems to escalate or result in electric shocks or other failure.
• After the work has finished, be sure to use an insulation tester set (500 V Megger) to check the resistance is 2 MΩ or more
between the charge section and the non-charge metal section (Earth section). If the resistance value is low, a disaster such
as a leak or electric shock is caused at user’s side.
• Upon completion of the installation work, check for refrigerant leaks and check the insulation resistance and water drainage.
Then conduct a test run to check that the air conditioner is operating properly.
Explanations given to user
• Upon completion of the installation work, tell the user where the circuit breaker is located. If the user does not know where
the circuit breaker is, he or she will not be able to turn it off in the event that trouble has occurred in the air conditioner.
• If you have discovered that the fan grille is damaged, do not approach the outdoor unit but set the circuit breaker to the OFF
position, and contact a qualified service person (*1) to have the repairs done. Do not set the circuit breaker to the ON
position until the repairs are completed.
• After the installation work, follow the Owner’s Manual to explain to the customer how to use and maintain the unit.
5-EN
6-EN
2
3
Accessory parts
MCY-
Part name
Q’ty
0401 type
0501 type 0601 type
Shape
Usage
Installation Manual
1
1
1
—
(Be sure to handover to customers.)
Owner’s Manual
1
1
1
—
(Be sure to handover to customers.)
CD-ROM
(Owner’s manual,
Installation manual)
1
1
1
—
For other languages that do not appear in this
Installation Manual, Please refer to the enclosed
CD-ROM.
Joint socket
—
—
1
Connecting pipes for gas side (Ø15.9 to Ø19.1)
Protective bush
1
1
1
Protection for wiring
Guard material for
passage part
1
1
1
Protection for knockout
Drain nipple
1
1
1
—
Waterproof rubber
cap
1
1
1
—
Installation of new refrigerant air
conditioner
This air conditioner adopts the new HFC refrigerant (R410A) which does not deplete the ozone layer.
• R410A refrigerant is vulnerable to impurities such as water, oxidizing membranes, or oils because the pressure of R410A
refrigerant is higher than that of the former refrigerant by approximately 1.6 times.
As well as the adoption of the new refrigerant, the refrigerating oil has been also changed. Therefore, pay attention so that
water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle of the new refrigerant air conditioner
during installation.
• To prevent mixing of refrigerant or refrigerating oil, the size of the charge port of the main unit or connecting section of the
installation tool differs to that of an air conditioner for the former refrigerant.
Accordingly, exclusive tools are required for the new refrigerant (R410A) as shown below.
• For connecting pipes, use new and clean piping materials so that water or dust does not enter.
„ Required tools and cautions on handling
It is necessary to prepare the tools and parts for installation as described below. The tools and parts which will be
newly prepared in the following items should be restricted to exclusive use.
Explanation of symbols
: Newly prepared (It is necessary to use it exclusively with R410A, separately from those for R22 or R407C.)
: Former tool is available.
Used tools
Gauge manifold
Usage
Charging hose
Vacuuming, charging refrigerant
and operation check
Charging cylinder
Charging refrigerant
Proper use of tools / parts
Exclusive to R410A
Exclusive to R410A
Unusable (Use the Refrigerant charging balance.)
Gas leak detector
Checking gas leak
Vacuum pump
Vacuum drying
Exclusive to R410A
Vacuum pump with counterflow
Vacuum drying
R22 (Existing article)
Flare tool
Flare processing of pipes
Usable by adjusting size
Bender
Bending processing of pipes
R22 (Existing article)
Refrigerant recovery device
Recovering refrigerant
Exclusive to R410A
Torque wrench
Tightening flare nut
Exclusive to Ø12.7 mm and Ø15.9 mm
Pipe cutter
Cutting pipes
R22 (Existing article)
Refrigerant canister
Charging refrigerant
Exclusive to R410A
Enter the refrigerate name for identification
Usable if a counter-flow preventive adapter is
attached
Welding machine / Nitrogen gas
cylinder
Welding of pipes
R22 (Existing article)
Refrigerant charging balance
Charging refrigerant
R22 (Existing article)
EN
7-EN
–4–
8-EN
–5–
Avoid the following places:
• Salty places (seaside area) or places with much gas sulfide (hot spring area) (If selecting such a place, special maintenance
is required.)
• Places where oil (including machine oil), steam, oil smoke or corrosive gas is generated.
• Places where iron or other metal dust is present. If iron or other metal dust adheres to or collects on the interior of the air
conditioner, it may spontaneously combust and start a fire.
• Places where an organic solvent is used.
• Chemical plants with a cooling system using liquid carbon dioxide.
• Places where a device generating high frequency (inverter, non-utility generator, medical apparatus, or communication
equipment) is set. (Malfunction or abnormal control of the air conditioner, or interference to devices listed above may occur.)
• Places where discharged air from the outdoor unit blows against the windows of a neighbour's house.
• Places unable to bear the weight of the unit.
• Places with poor ventilation.
Considering functions, reserve space necessary for
installation work and servicing.
• A place which provides a specified space around the
outdoor unit.
• A place where the operation noise and discharged air are
not given to your neighbors.
• A place that is not exposed to a strong wind.
• A place that does not block a passage.
• When the outdoor unit is installed in an elevated position,
be sure to secure its feet.
• There must be sufficient space for carrying in the unit.
• A place where the drain water does not make any problem.
◆ Obstacle at rear side
Upper side is free
1. Single unit installation
150
or more
• Place where it can be installed horizontally.
• Place which can reserve a sufficient service space for safe maintenance or checks.
• Place where there is no problem even if the drained water overflows.
„ Necessary space for installation
2. Obstacles at both right and left sides.
CAUTION
1. Install the outdoor unit at a place where discharge air
is not blocked.
2. When an outdoor unit is installed in a place that is
always exposed to a strong wind like a coast or on a
high story of a building, secure a normal fan
operation by using a duct or a wind shield.
3. When installing the outdoor unit in a place that is
constantly exposed to a strong wind such as the
upper stairs or rooftop of a building, apply the
windproof measures referring to the following
examples.
1)Install the unit so
500 mm
that its discharge port
faces to the wall of
the building. Keep a
distance 500 mm or
more between the
unit and the wall
surface.
2) Supposing the wind direction during the
operation season of the air conditioner, install the
unit so that the discharge port is set at right angle
to the wind direction.
Strong Wind
Strong Wind
The height of the
obstacle should be
lower than the height
of the outdoor unit.
150
or more
300
or more
3. Serial installation of two or more units
200 or more
Upon customer’s approval, install the air conditioner in a place which satisfies the following conditions:
„ Installation place
150
300
300
300
or more
or more
or more
or more
The height of the obstacle should be lower
than the height of the outdoor unit.
Obstacle also at the upper side
500
or more
Selection of installation place
200
or more
4
150
or more
◆ Obstacle at front side
Upper side is free
500
or more
1. Single unit installation
2. Serial installation of two or more units
1000
or more
4. Installation in the following places may result in
some troubles. Do not install the unit in such places
below.
• A place full of machine oil.
• A place full of sulfuric gas.
• A place where high-frequency radio waves are
likely to be generated as from audio equipment,
welders, and medical equipment.
9-EN
10-EN
„ Installation of outdoor unit
Obstacle also at the upper side
• Before installation, check strength and horizontally of the
base so that abnormal sound does not generate.
• According to the following base diagram, fix the base firmly
with the anchor bolts.
(Anchor bolt, nut: M10 x 4 pairs)
1000
or more
1000
or more
„ Refrigerant piping connection
150
600
CAUTION
Take notice these important
4 points below for piping work
1. Keep dust and moisture away from inside the
connecting pipes.
2. Tightly connect the connection between pipes and
the unit.
3. Evacuate the air in the connecting pipes using
VACUUM PUMP.
4. Check gas leak at connected points.
150
430
Drain hole
365
400
Open the upper side and both right and left sides.
The height of obstacle at both front and rear side should be
lower than the height of the outdoor unit.
40
◆ Obstacles at both front and rear
sides
Knockout hole
„ For reference
1. Single unit installation
If a heating operation would be continuously performed for a
long time under the condition that the outdoor temperature is
0 °C or lower, draining of defrosted water may be difficult due
to freezing of the bottom plate, resulting in a trouble of the
cabinet or fan.
It is recommended to procure an anti-freeze heater locally for
a safety installation of the air conditioner.
For details, contact the dealer.
150
or more
Set the out margin of the anchor bolt to 15 mm or less.
15 or less
1000
or more
• In case of draining through the drain hose, attach the
following drain nipple and the waterproof rubber cap, and
use the drain hose (Inner diam.: 16 mm) sold on the
market. And also seal the screws securely with silicone
material, etc. so that water does not drop down. Some
conditions may cause dewing or dripping of water.
„ Knockout of pipe cover
300
or more
1000
or more
200
or more
2. Serial installation of two or more units
Drain nipple
Waterproof rubber cap
◆ Serial installation at front and rear
sides
Open the upper side and both right and left sides.
The height of obstacle at both front and rear sides should be
lower than the height of the outdoor unit.
11-EN
300
or more
1500
or more
2000
or more
1. Remove screws of the front panel.
2. Pull the front panel downward.
Removing the front panel, the electric parts appear at the
front side.
• The metal pipes are attachable to the piping holes. If the
size of the used power pipe does not match with the hole,
adjust the hole size to match with pipe size.
• Be sure to fix the power cable and indoor / outdoor
connecting cable with bundling band sold on the market so
that they do not make contact with the compressor and
discharge pipe.
(Temperature of the compressor and discharge pipe
becomes high.)
In order to avoid the force applied to on the connecting
section, be sure to fix the cables to the cord clamps
provided on the pipe valve fixing plate and the electrical
control box.
Electrical control box
Front panel
Side direction
Open
Front direction
Waterproof rubber cap
Drain nipple
Pipe cover
Down direction
Terminal
plate
◆ Knockout procedure
• When there is a possibility of freezing of drain at the cold
district or a snowfall area, be careful for drainage ability of
drain. The drainage ability increases when a knockout hole
on the base plate is opened. (Open the knockout hole to
outside using a screwdriver, etc.)
Standard installation
◆ How to remove the front panel
Rear direction
Knockout hole
1000
or more
After connecting the pipes, be sure to mount the pipe cover.
The pipe cover is easily mounted by cutting off the slit at the
lower part of the pipe cover.
Drain nipple mounting hole
Standard installation
300
or more
• After marking the knockout hole, remove the burr and
mount the attached protective bush and guard material for
pass-through part in order to protect pipes and wires.
• The indoor / outdoor connecting pipes can be connected to
4 directions.
Take off the knockout part of the pipe cover in which pipes
or wires pass through the base plate.
• As shown in the figure, do not remove the pipe cover from
the cabinet so that the knockout hole can be easily
punched. To knock out, it is easily taken off by hands by
punching a position at the lower side of 3 connected parts
with screwdriver along the guide line.
200
or more
–6–
Cord clamp
EN
12-EN
–7–
5
„ Tightening of connecting part
Refrigerant piping
(Unit: N•m)
WARNING
• If the refrigerant gas leaks during installation work, ventilate the room immediately.
If the leaked refrigerant gas comes into contact with a source of fire, noxious gas maybe generated.
• After installation work is complete, check refrigerant gas does not leak.
If the refrigerant leaks into the room and comes into contact with a naked flame, noxious gas maybe generated.
Outer dia. of copper pipe
Tightening torque
9.5 mm (diam.)
33 to 42 (3.3 to 4.2 kgf•m)
15.9 mm (diam.)
63 to 77 (6.3 to 7.7 kgf•m)
• Align the centers of the connecting pipes and tighten
the flare nut strong as far as possible with your
fingers.
Then fix the nut with a spanner and tighten it with
torque wrench as shown in the figure.
„ Pipe forming / End positioning
• Flaring size : A (Unit : mm)
90°
Flare nut
Internally
threaded side
Externally
threaded side
NO GOOD
Obliquity Roughness
Fix with spanner.
Warp
2. Insert a flare nut into the pipe, and flare the pipe.
As the flaring sizes of R410A differ from those of
refrigerant R22, the flare tools newly manufactured
for R410A are recommended.
However, the conventional tools can be used by
adjusting projection margin of the copper pipe.
Tighten with torque wrench.
A +0
-0.4
Outer dia. of copper pipe
R410A
R22
9.5
13.2
13.0
15.9
19.7
19.4
* In case of flaring for R410A with the conventional
flare tool, pull it out approx. 0.5 mm more than that of
R22 to adjust to the specified flare size.
The copper pipe gauge is useful for adjusting
projection margin size.
• Projection margin in flaring :
B (Unit : mm)
B
• As shown in the figure, be sure to use a double
spanner to loosen or tighten the flare nut of the valve
at gas side. If using a single spanner, the nut cannot
be tightened with necessary tightening torque.
On the contrary, use a single spanner to loosen or
tighten the flare nut of the valve at liquid side.
Cover
Cap
Piping valve
Rigid (Clutch type)
Outer dia.
of copper
pipe
R410A tool used
R410A
R22
Conventional tool used
R410A
Loosened
• Pressure of R410A is higher than that of R22
(Approx. 1.6 times). Therefore, using a torque
wrench, tighten the flare pipe connecting sections
which connect the indoor / outdoor units at the
specified tightening torque. Incomplete connections
may cause not only a gas leak, but also a trouble of
the refrigeration cycle.
Do not apply refrigerating machine oil to the
flared surface.
Tightened
R22
9.5
0 to 0.5 (Same as left) 1.0 to 1.5 0.5 to 1.0
15.9
0 to 0.5 (Same as left) 1.0 to 1.5 0.5 to 1.0
Flare nut
Valve at gas side
Imperial (Wing nut type)
13-EN
Cover
A
1. Cut the pipe with a pipe cutter.
OK
• After the installation work, be sure to check gas leak
of connecting part of the pipes with nitrogen.
NO GOOD
Half union or packed valve
◆ Flaring
REQUIREMENT
1. Do not put the spanner on the cap. The valve may
be broken.
2. If applying excessive torque, the nut may be broken
according to some installation conditions.
Outer dia. of copper pipe
R410A
R22
9.5
1.5 to 2.0
1.0 to 1.5
15.9
2.0 to 2.5
1.5 to 2.0
14-EN
Pipe connecting method of valve at gas side
Outdoor unit
capacity type
Gas pipe
diameter
MAP040 type
MAP050 type
Ø15.9
• Coupling size of brazed pipe
Connected section
Pipe connecting method of valve at gas side
External size
Internal size
Connect Ø15.9 pipe with flaring.
Flare
connection
G
Ball valve of
gas side Ø15.9
ØF
ØC
K
Gas pipe Ø15.9
(Local supply)
(Unit: mm)
Connected section
Standard outer dia.
of connected
copper pipe
MAP060 type
Ø19.1
External size
Min. depth of
insertion
Oval value
Min. thickness
of coupling
C
F
K
G
6.35
6.35 (±0.03)
6.45 ( +0.04
-0.02 )
7
6
0.06 or less
0.50
9.52
9.52 (±0.03)
9.62 ( +0.04
-0.02 )
8
7
0.08 or less
0.60
For braze connection of Ø19.1 gas pipe, refer to the following method.
1) Form the pipe so that the end part of the pipe will be out from the outdoor unit along the
taking-out direction of the pipe.
The Ø15.9 gas pipe to be supplied locally.
2) Using the joint socket (Accessory), connect with braze Ø15.9 gas pipe and Ø19.1 gas pipe
at outside of the outdoor unit.
3) After connecting the pipes, apply thermal insulation process to the gas pipe until near the
valve.
Internal size
Standard outer dia. (Allowable difference)
12.70
12.70 (±0.03)
12.81 ( +0.04
-0.02 )
9
8
0.10 or less
0.70
15.88
15.88 (±0.03)
16.00 ( +0.04
-0.02 )
9
8
0.13 or less
0.80
19.05
19.05 (±0.03)
19.19 ( +0.03
-0.03 )
11
10
0.15 or less
0.80
„ Selection of pipe materials and size
• Selection of pipe material
Material: Phosphorus deoxidation seam-less pipe
• Capacity code of indoor and outdoor units
• For the indoor unit, the capacity code is decided at each capacity rank.
• The capacity codes of the outdoor units are decided at each capacity rank.
The maximum No. of connectable indoor unit and the total value of capacity codes of the indoor units are also decided.
Minimum wall thickness for R410A application
Flare
connection
Ball valve of
gas side Ø15.9
Gas pipe Ø15.9
(Local supply)
Gas pipe Ø19.1
(Local supply)
Joint socket
(Accessory)
Braze connection
(A connect with braze)
Soft
Harf Hard or Hard
OD (Inch)
OD (mm)
Minimum wall thickness (mm)
OK
OK
1/4”
6.35
0.80
OK
OK
3/8”
9.52
0.80
OK
OK
1/2”
12.70
0.80
OK
OK
5/8”
15.88
1.00
NG *
OK
3/4”
19.05
1.00
Table 1
Table 2
Capacity code
Indoor unit
capacity type
Outdoor unit
capacity type
Equivalent to HP Equivalent to capacity
15-EN
–8–
* If the pipe size is Ø19.0 or
more, use a suitable
material.
Total capacity code of
No. of
connectable connectable indoor units
indoor
units
Equivalent to HP
Min. (HP) Max. (HP)
Capacity code
007 type
0.8
2.2
040 type
4
6
3.2
5.2
009 type
1
2.8
050 type
5
8
4.0
6.5
012 type
1.25
3.6
060 type
6
9
4.8
7.8
015 type
1.7
4.5
018 type
2
5.6
024 type
2.5
7.1
027 type
3
8
030 type
3.2
9
036 type
4
11.2
048 type
5
14
EN
16-EN
–9–
„ Selection of refrigerant piping
„ Selection of refrigerant piping for quiet place (with PMV Kit)
Outdoor unit
Outdoor unit
Gas pipe
Gas pipe
Liquid pipe
Main pipe
1
1st branching Branching
pipe
section
1
1st branching Branching
Branch header
pipe
section
Branch
header
4
2
4
4
2
4
Liquid pipe
Main pipe
PMV Kit
5
5
3
3
3
4
Piping parts
2
5
No.
3
Piping parts
Outdoor unit
È
1st branching section
➀
Selection of pipe size
Outdoor unit capacity type
Gas pipe
Liquid pipe
040 type
15.9
9.5
050 type
15.9
9.5
060 type
19.1
9.5
Total capacity codes of indoor units at
down stream side
➁
Outdoor unit
È
1st branching section
Main pipe
Gas pipe
Branching section
È
Branching section
Below 2.8
12.7
9.5
2.8 to below 6.4
15.9
9.5
6.4 to below 7.2
19.1
9.5
Branching pipe
➂
Indoor unit
connecting pipe
Gas pipe
➂
Branching section
È
Indoor unit
Indoor unit
connecting pipe
Liquid pipe
007, 009, 012 type
9.5
6.4
015, 018 type
12.7
6.4
024, 030, 036, 048 type
19.1
9.5
Y-shape branch
joint Branch header
Y-shape branch joint
Branch header *1
15.9
9.5
060 type
19.1
9.5
Gas pipe
Liquid pipe
Below 2.8
12.7
9.5
2.8 to below 6.4
15.9
9.5
6.4 to below 7.2
19.1
9.5
Indoor unit capacity type
Gas pipe
007, 009, 012 type
9.5
6.4
015, 018 type
12.7
6.4
024, 030, 036, 048 type
19.1
9.5
➃
Branching section
Y-shape branch joint
Branch header *1
RBM-HY1043E
For 8 branches
RBM-HY1083E
Liquid pipe
RBM-BY55E
For 4 branches
RBM-HY1043E
For 8 branches
RBM-HY1083E
*1: For each line after branching header, total indoor capacity code must be 6.0 maximum.
Selection of PMV Kit
RBM-BY55E
For 4 branches
*1: For each line after branching header, total indoor capacity code must be 6.0 maximum.
17-EN
9.5
050 type
Model name
Y-shape branch
joint Branch header
Model name
Branching section
Liquid pipe
15.9
Selection of branching section
Selection of branching section
➃
Gas pipe
040 type
* If the total capacity code value of indoor units exceeds that of the outdoor units, apply
the capacity code of outdoor units.
Connecting pipe size of indoor unit
Connecting pipe size of indoor unit
Indoor unit capacity type
Outdoor unit capacity type
Equivalent to HP
Liquid pipe
* If the total capacity code value of indoor units exceeds that of the outdoor units, apply
the capacity code of outdoor units.
Branching section
È
Indoor unit
Selection of pipe size
Total capacity codes of indoor units at
down stream side
Equivalent to HP
Branching pipe
Intdoor unit
Pipe size between branching sections
➁
Pipe size between branching sections
Branching section
È
Branching section
5
3
Size of main pipe
Name
Main pipe
5
3
Name
Size of main pipe
➀
4
2
3
3
5
3
Intdoor unit
4
4
2
3
No.
3
Branching Y-shape
branch joint
pipe
Intdoor unit
Branching Y-shape
branch joint
pipe
2
3
5
3
3
➄
PMV Kit
PMV Kit
Indoor unit capacity type
Model name
007, 009, 012 type
RBM-PMV0362E
015, 018, 024 type
RBM-PMV0902E
18-EN
„ Allowable length / height difference of refrigerant piping
„ Allowable length / height difference of refrigerant piping for quiet
places (with PMV Kit)
Outdoor unit
Outdoor unit
Main
pipe L1
Main
pipe L1
PMV Kit
Branch header
Branching pipe L2
Height difference
between indoor and
outdoor units H1
a
1st branching
section
b
c
b
c
d
d
h
i
j
Height difference
between indoor
and outdoor
Branching pipe
units H1
L3
Equivalent length corresponded to farthest piping L
Equivalent length corresponded to farthest piping after 1st branching Li
Equivalent length corresponded to farthest piping after 1st branching Li
Height difference
between indoor
units H2
L4
e
f
Y-shape
branch joint
Total extension of pipe (Liquid pipe, real length)
Furthest piping length
L (*1)
g
g
f
e
H2
l
m
n
A ∗1
A ∗1
Allowable value
Pipes
180 m
L1 + L2 + L3 + L4 + a + b + c + d + e + f + g
Real length
100 m
L1 + L3 + L4 + g
Equivalent length
125 m
65 m
Equivalent length of furthest piping from 1st
branching Li (*1)
35 m
L3 + L4 + g
Max. real length of indoor unit connecting pipe
15 m
a, b, c, d, e, f. g
Upper outdoor unit
30 m
–
Lower outdoor unit
20 m
–
15 m
–
Height between indoor units H2
H2
L4
Y-shape
branch joint
Max. equivalent length of main pipe
Height between indoor
and outdoor units H1
Height difference
between indoor unit
and PMV Kit H2 *
* Between highest
unit and lower units.
Example)
k
Intdoor unit
Intdoor unit
Equivalent length corresponded to farthest piping L
Height
Difference
a
1st branching
section
Branching pipe
L3
Piping
Length
Branch header
Branching pipe L2
H2
Total extension of pipe (Liquid pipe, real length)
Furthest piping length
L (*1)
Piping
Length
L1
Height
Difference
Allowable value
Pipes
150 m
L1 + L2 + L3 + L4
+ a + b + c + d + e + f + g + h + I + j + k+ l + m + n
Real length
65 m
Equivalent length
80 m
L1 + L3 + L4 + g + n
Max. equivalent length of main pipe
50 m
L1
Equivalent length of furthest piping from 1st
branching Li (*1)
15 m
L3 + L4 + g + n
Max. real length of indoor unit connecting pipe
15 m
a + h, b + i, c + j, d + k, e + l, f + m. g + n
Real length between PMV KIT and indoor unit
2 m or more
Below 10 m
h, i, j, k, l, m, n
Upper outdoor unit
30 m
–
Lower outdoor unit
20 m
–
Height between indoor unit and PMV kit H2
15 m
–
Height between indoor
and outdoor units H1
*1: Furthest indoor unit from 1st branch to be named “A”.
*1: Furthest indoor unit from 1st branch to be named “A”.
NOTE
Do not connect two or more indoor units to one PMV Kit. Arrange one indoor unit and one PMV Kit set to 1 by 1.
NO GOOD
OK
PMV Kit
PMV Kit
Indoor unit
19-EN
– 10 –
Indoor unit
EN
20-EN
– 11 –
„ Airtight test
„ Air purge
After the refrigerant piping has finished, execute an airtight test.
For an airtight test, connect a nitrogen gas bomb as shown in the figure below, and apply pressure.
• Be sure to apply pressure from the service ports of the packed valves (or ball valves) at liquid side, discharge gas side, and
suction gas side.
• An air tight test can be only performed to the service ports at liquid side, discharge gas side, and suction gas side of the
outdoor unit.
• Close fully valves at liquid side, discharge gas side, and suction gas side. As there is possibility that nitrogen gas enters in
the refrigerant cycle, re-tighten the valve rods before applying pressure.
(Re-tightening of the valve rods are unnecessary for valves at discharge gas side because they are ball valves.)
• For each refrigerant line, apply pressure gradually with steps at liquid side, discharge gas side, and suction gas side.
Be sure to apply pressure to suction gas side, discharge gas side, and liquid side.
REQUIREMENT
Never use “Oxygen”, “Flammable gas” and “Noxious gas” in an airtight test.
Lowpressure
gauge
Connected to indoor unit
Packed valve fully closed
(Gas side)
Main pipe
VL
Outdoor unit
NOTE
For the air purge at installation time (Discharge of air in connecting pipes), use “Vacuum pump method” from viewpoint of the
protection of the earths environment.
• For protection of the earth environment, do not discharge the refrigerant gas in the air.
• Using a vacuum pump, eliminate the remaining air (nitrogen gas, etc.) in the unit.
If gas remains, performance and reliability of the unit may be reduced.
After the airtight test, discharge nitrogen gas. Then connect the gauge manifold to the service ports at suction gas side,
discharge gas side and liquid side, and connect the vacuum pump as shown in the following figure.
Be sure to perform vacuuming for suction gas side, discharge gas side and liquid side.
• Be sure to perform vacuuming from both suction gas side, discharge gas side and liquid side.
• Be sure to perform vacuuming from both liquid and gas sides.
• Use a vacuum pump with counter-flow preventive function so that oil in the pump does not back up in the pipe of the air
conditioner when the pump has been stopped. (If oil in the vacuum pump enters in to the air conditioner with R410A
refrigerant, an error may occur in the refrigeration cycle.)
Highpressure
gauge
VH
Gauge
manifold
Lowpressure
gauge
Connected to indoor unit
Packed valve fully closed
(Gas side)
Main pipe
VL
Highpressure
gauge
VH
Gauge manifold
Outdoor unit
Brazed
Service port
Ø6.4
Copper pipe
Reducing
valve
Brazed
Service port
Fully closed
Ø6.4
Copper pipe
Fully closed
Service port
Ball valve fully closed
(Liquid side)
Nitrogen gas
Service port
Ball valve fully closed
(Liquid side)
STEP 1: Apply pressure 0.3 MPa (3.0 kg/cm2G) for 3 minutes or more.
STEP 2: Apply pressure 1.5 MPa (15 kg/cm2G) for 3 minutes or more.
STEP 3: Apply pressure 3.73 MPa (38 kg/cm2G) for approx. 24 hours.
• Check pressure down.
No pressure down: Accepted
⎛
⎝
⎞
⎠
Vacuum pump
Available to detect a gross leakage
Available to detect slow leakage
Pressure down: Check the leaked position.
However, if there is difference of ambient temp. between when pressure has been applied and when 24 hours passed, ⎞
⎠
pressure changes by approx. 0.01 MPa (0.1 kg/cm²G) per 1°C. Correct the pressure.
Leaked position check
When a pressure-down is detected in STEP 1, STEP 2, or STEP 3, check the leakage at the connecting points. Check leakage
with hearing sense, feeler, foaming agent, etc, and perform re-brazing or re-tightening of flare if leakage is detected.
21-EN
P
• Use a vacuum pump that has a high vacuum (below -755 mmHg) and a large exhaust gas amount (over 40L / minute).
• Perform vacuuming for 2 or 3 hours though time differs due to pipe length.
In this time, check all packed valves at liquid, gas and balance sides are fully closed.
• If vacuuming valve amount is not decreased to below -755 mmHg even after vacuuming for 2 hours or more, continue
vacuuming for 1 hour or more.
If -755 mmHg or less cannot be obtained by 3 hours or more vacuuming, detect and repair the leak.
• When the vacuuming valve has reached -755 mmHg or less after vacuuming for 2 hours or more, close valves VL and VH
on the gauge manifold fully. Stop the vacuum pump, leave it as it is for 1 hour and then check the vacuum does not change.
If it does change then there may be a leak within the system.
• After the above procedure for vacuuming has finished, exchange the vacuum pump with a refrigerant cylinder and advance
to the additional charging of refrigerant.
22-EN
„ Addition of refrigerant
„ Full opening of the valve
After vacuuming work, exchange the vacuum pump with the refrigerant bomb and then start the additional charging
work of refrigerant.
•
•
•
•
Calculating the amount of additional refrigerant required
When the system is charged with refrigerant at the factory, the amount of refrigerant needed for the pipes on site is
not included. Calculate the additional amount required, and add that amount to the system.
Additional refrigerant charge amount is calculated from size of liquid pipe at site and its real length.
Additional
refrigerant charge R (kg)
amount at site
=
Real length
of liquid pipe
Table 1
×
Additional refrigerant charge
amount per liquid pipe 1m
(Table 1)
Open the valve of the outdoor unit fully.
Using a 4 mm-hexagonal wrench, open fully the valve key on the liquid side.
Using a spanner open fully the valve key on the packed valve at suction gas side.
Using a pair of pinchers, open fully the handle on the ball valve at the discharge gas side.
Be careful that the handling of the ball valve differs from that of the packed valve.
◆ How to open the ball valve at gas side
+
Two types of valves are provided to the gas side.
Refer to the corresponding one.
The valve is changed to a renewal one from type 1 to type 2. (Both functions are same, but structure of the stem stoppers are
different.)
Therefore confirm the structure surely and then open or close the valve.
Compensation
by outdoor HP
(Table 2)
Valve unit
Table 2
Pipe dia. at liquid side
Ø6.4
Ø9.5
Outdoor unit capacity type
Additional refrigerant amount / 1 m (kg) 0.025
0.055
Compensation by outdoor HP (kg)
040 type
050 type
060 type
–0.8
–0.4
0
Using a minus screwdriver,
turn it counterclockwise by
90° until it hits the stopper.
(Full open)
Example: (0501 type)
L1
L2
L3
a
b
Charge port
c
d
Flare nut
L1
Ø9.5 : 10 m
L2
Ø9.5 : 10 m
L3
Ø9.5 : 5 m
Ø6.4 : 3 m
c
Ø6.4 : 4 m
d
Ø6.4 : 5 m
a
Ø9.5 : 3 m
Position of grooves for driver
Valve handling precautions
Additional charge amount R (kg)
= (Lx × 0.025 kg/m) + (Ly × 0.055 kg/m) + (–0.4 kg)
= (12 × 0.025 kg) + (28 × 0.055 kg) + (–0.4 kg)
= 1.44 kg
• Open the valve stem or the handle until it strikes the
stopper. It is unnecessary to apply further force.
• Securely tighten the cap with a torque wrench.
• Cap tightening torque
Lx: Real total length of liquid pipe Ø6.4 (m)
Ly: Real total length of liquid pipe Ø9.5 (m)
NOTE
Grooves
for driver
If the additional refrigerant amount indicates a negative result from the calculation, use air conditioner without
the adding of any additional refrigerant.
Closed completely
Opened fully
*1: When opened fully, do not apply an excessive torque after the
screwdriver hit the stopper; otherwise a trouble may be caused
on the valve.
Charging of refrigerant
• Keeping valve of the outdoor unit closed, be sure to charge the liquid refrigerant into service port at liquid side.
• If the specified amount of refrigerant cannot be charged, open fully valves of outdoor unit at liquid and discharge /
suction gas sides, operate the air conditioner in COOL mode under condition that valve at suction gas side is a little
returned to close side, and then charge refrigerant into service port at suction gas side. In this time, choke the
refrigerant slightly by operating valve of the bomb to charge liquid refrigerant. The liquid refrigerant may be charged
suddenly, therefore be sure to charge refrigerant gradually.
• When refrigerant leaks and refrigerant shortage occurs in the system, recover the refrigerant in the system and
recharge refrigerant newly up to the correct level.
Valve size
Ø9.5
33 to 42 N•m (3.3 to 4.2 kgf•m)
Ø15.9
20 to 25 N•m (2.0 to 2.5 kgf•m)
Charge port
14 to 18 N•m (1.4 to 1.8 kgf•m)
REQUIREMENT
Entry of refrigerant charge amount
• Complete the refrigerant record column found on the wiring diagram, with detail of the additional refrigerant
amount and name of service engineer at the time of installation.
• The total amount of refrigerant refers to the shipment charge plus any additional refrigerant at the time of
installation. The refrigerant amount at shipment is indicated on the unit name plate.
23-EN
EN
– 12 –
24-EN
– 13 –
6
„ F-GAS label
This product contains fluorinated greenhouse gases covered by the Kyoto Protocol
• Chemical Name of Gas
R410A
• Global Warming Potential (GWP) of Gas
1975
Electric wiring
WARNING
• Electrical work must be performed by a qualified electrician in accordance with the installation manual.
CAUTION
• Ensure the air conditioner uses a designated power supply.
An insufficient power supply capacity or inappropriate installation may cause a fire.
1. Stick the enclosed refrigerant label adjacent to the charging and / or recovering location.
2. Clearly write the charged refrigerant quantity on the refrigerant label using indelible ink. Then, place the included
transparent protective sheet over the label to prevent the writing from rubbing off.
3. Prevent emission of the contained fluorinated greenhouse gas. Ensure that the fluorinated greenhouse gas is
never vented to the atmosphere during installation, service or disposal. When any leakage of the contained
fluorinated greenhouse gas is detected, the leak shall be stopped and repaired as soon as possible.
4. Only qualified service personnel are allowed to access and service this product.
5. Any handling of the fluorinated greenhouse gas in this product, such as when moving the product or recharging
the gas, shall comply under (EC) Regulation No. 842/2006 on certain fluorinated greenhouse gases and any
relevant local legislation.
6. Periodical inspections for refrigerant leaks may be required depending on European or local legislation.
7. Contact dealers, installers, etc., for any questions.
• When connecting the installation wiring, be sure that all fixing terminal are securely fixed.
• Ensure earthling practice is correctly performed.
Grounding is necessary, if earthling practice is incomplete an electric shock maybe caused.
CAUTION
• The installation fuse must be used for the power supply line of this outdoor unit.
• Incorrect / incomplete wiring might cause an electrical fire or smoke.
• Prepare the exclusive power supply for the outdoor unit.
• Ensure an electrical leakage breaker is fitted. This is to prevent the risk of electric shock.
To Disconnect the Appliance from Main Power Supply.
This appliance must be connected to a main power supply by means of a switch with a contact separation of at least 3 mm.
REQUIREMENT
Pre-charged Refrigerant at Factory [kg],
specified in the nameplate
R410A
kg
kg
Additional Charge on Installation Site
[kg]
kg
„ Heat insulation for pipe
• Apply the heat insulation to the pipework separately. (liquid, suction and discharge).
• Use thermal heat insulation which can withstand temperatures of 120°C or more.
CAUTION
• Upon completion of the pipework connections fit the piping / wiring panel and the pipe cover.
Gaps between the pipes and the cover are to be filled using a suitable putty or silicone.
• If the pipework is fitted in the downward or sideways position, ensure that the base plate and side plate are closed
and sealed.
• If an opening is left unsealed there is a risk of a fault due to the entering of water or dust.
•
•
•
•
•
•
•
•
Perform wiring of the power supply in conformance with the regulations of the local authorities.
For wiring of the power supply in the indoor unit, refer to the Installation Manual of the relevant indoor unit.
Never connect 220 V-240 V to the terminal block (U1, U2, U3, U4). (Fault will be caused.)
Arrange the electrical wiring so that they do not come into contact with high-temperature parts of the pipework;
this is to prevent the risk of insulation melting and causing a possible accident.
After connecting wires to the terminal block, secure wiring with cable clamp.
Install control wiring and refrigerant piping within the same line.
Do not turn on power of the indoor unit until vacuuming of the refrigerant pipe has finished.
For cabling of the power supply of the indoor units cabling between indoor and outdoor units, refer to the
Installation Manual of the indoor unit.
„ Connection of power supply wire with control wire
Insert power supply wire and control wire after
removing knockout of the piping / wiring panel at front
side of the outdoor unit.
Knockout for
power supply wiring
The knockout piping and the wiring hole are also
provided to the front surface, the right side, and the
rear side.
Knockout for
control wiring and
refrigerant piping
NOTE
• Be sure to separate the power supply wires and each control wire.
• Arrange the power supply wires and each control wire so that they do not contact with the bottom surface of the
outdoor unit.
• A terminal block (U3, U4 terminal blocks) for connecting an optional part “Central remote controller etc.” is
provided on the inverter unit, so be careful to miswiring.
25-EN
26-EN
„ Power supply specifications
„ For Indoor unit power supply (The outdoor unit has a separate
power supply.)
Select the power supply cabling and fuse of each outdoor unit from the following specifications.
• Ensure an earth leakage breaker is installed, failure to install, may result in electric shock.
• The installation fuse must be used for the power supply line of this outdoor unit.
• Be sure to use the appropriate type of over-current breaker (fuse) switch.
• Observe local regulation regarding wire size selection and installation.
3-core cable in conformance with Design 60245 IEC 66.
Do not connect the units looping via the terminal blocks (L, N).
Item
Power supply wiring
Wire size
Model
All models of indoor units
2.0 mm² Max. 20 m
3.5 mm² Max. 50 m
NOTE
(Connection example)
Power
supply
MCY-MAP***HT
1N ~ 50 Hz 220 V-240 V
MCY-MAP***HT2D
1N ~ 60 Hz 220 V
• Power supply cord specification: Cable 3-core 2.5 mm², inconformity with Design 60245 IEC57.
• The connecting length indicated in the table represents the length from the pull box to the outdoor unit when the indoor units
are connected in parallel for power, as shown in the illustration below.
A voltage drop of no more than 2 % is also assumed. If the connecting length will exceed the length indicated in the table,
select the wire thickness in accordance with indoor wiring standards.
• Determine the wire size for indoor unit according to the number of connected indoor units downstream.
Earth
Outdoor unit
capacity type
Wire size*
0401 type
6 mm², Max. 28 m
25A
32A
0501 type
6 mm², Max. 25 m
28A
32A
0601 type
6 mm², Max. 22 m
31A
40A
L
Maxim running Installation
current
fuse
Outdoor unit
N
[Indoor unit]
Earth
Over-current breaker (fuse) switch
Earth
L N
* Design 60245 IEC66
Earth
L N
Earth
L N
L N
Earth leakage breaker
Outdoor unit power supply
Indoor unit power supply
1N ~ 50 Hz, 220 V-240 V
1N ~ 60 Hz, 220 V
„ Connection of power supply
Earth leakage breaker
Pull box
Main switch
◆ Power supply wire
• Connect the power supply cables and earthling wire to the power supply terminal block.
Tighten the screws on the terminal block and secure the cables with the cord clamp.
(Do not apply tension to the connecting section of the terminal block.)
(Terminal block)
„ Connection of PMV Kit
(Stripping length power cable)
L N
Indoor unit
Pulse motor valve (Indoor unit side)
10
10
L
N
50
Power cable
(Cord clamp)
PMV Kit
90
Connection cable
Earth wire
PMV
Power cable
CN82 connector
Connector conversion cable
(MMK-AP***4MH (High Wall) does not use a this conversion cable.)
Indoor control P.C. board
(Protective bush : Accessory)
For details of the PMV Kit, refer to the Installation Manual.
EN
27-EN
– 14 –
28-EN
– 15 –
„ Design of control wiring
• Connect each wire for controlling as shown below.
1. All control wiring is 2-core and non-polarity wire.
2. Ensure use of shielded wiring in the following cases to prevent noise issues.
• Indoor-indoor / outdoor-indoor control wiring, Central control wiring.
Central control
device
Central remote controller (Option)
U1 U2
U3 U4
SMMS
(Super modular multi system)
MINI-SMMS
U1 U2
U3 U4
(Open)
Table-1
L4
U3 U4
[Outdoor unit]
Header
unit
U3 U4
U1 U2
U1 U2
(Open)
Follower
unit
U3 U4
U3 U4
U1 U2 U5 U6
U1 U2 U5 U6
Table-1
L5
To other
refrigerant
system
[Outdoor unit]
Table-2
Relay
connector
U1
U2
U3
U4
For control
For wiring of
wiring between central control
indoor and
system
outdoor
Cable clamp
Shield earth screw
U1 U2 U3 U4
Control wiring between indoor
and outdoor units
L1
L2
[Indoor unit]
U1 U2
U1 U2
A B
A B
L3
U1 U2
U1 U2
A B
U1 U2
A B
A B
U1 U2
U1 U2
A B
U1 U2
A B
A B
Relay connector
(Factory default : No connection)
U1 U2
A B
Control wiring between indoor and outdoor units
Table-3
L7
L7
L6
Remote controller
Type
Size
Length *1
Control wiring between indoor units
Connection of shield wire must be connected
(Connected to all connecting sections in each Indoor unit)
Remote controller
Remote controller
Table 2 Control wiring between outdoor
units (L5) (SMMS series)
Table 1 Control wiring between indoor and
outdoor units (L1, L2, L3),
Central control wiring (L4)
Wiring
L6
[Indoor unit]
PMV Kit
(Option)
Wiring
2-core, non-polarity
Type
Shield wire
Size
Length
1.25 mm² : Up to 1000 m
2.0 mm² : Up to 2000 m
2-core, non-polarity
U1 U2
U1 U2
U1 U2
U1 U2
Indoor control
P.C. board
CN82
Shield wire
1.25 mm² to 2.0 mm²
Up to 100 m (L5)
NOTE
• Wire specification, quantity, size of crossover wiring and remote controller wiring
*1: Total of control wiring length for all refrigerant circuits ( L1 + L2 + L3 + L4 )
Size
Name
Q’ty
Table 3 Remote controller wiring (L6, L7)
Wire
2-core
Size
0.5 mm² to 2.0 mm²
Length
• Up to 500 m ( L6 + L7 )
• Up to 400 m with of wireless remote controller in group control.
• Up to 200 m total length of control wiring between indoor units ( L6 )
▼ Group Control through a Remote Controller
Group control of multiple indoor units (8 units) through a single remote controller
Indoor unit No.1
No.2
No.3
No.4
AB
AB
AB
AB
Remote
controller
29-EN
Specification
Up to 500 m
No.7
AB
No.8
AB
Control wiring
(indoor-indoor / indoor-outdoor / outdoor-indoor
control wiring, central control wiring)
2 cores
Remote controller wiring
2 cores 0.5 to 2.0 mm²
Up to 1000 m 1000 to 2000 m
1.25 mm²
—
2.0 mm²
Shield wire
—
—
1. The crossover wiring and central control wiring use 2-core non-polarity transmission wires. Use 2-core shield
wires to prevent noise trouble. In this case, close (connect) the end of shield wires, and perform the functional
grounding for the end of the shield wires which are connected to both indoor and outdoor units.
For the shield wires which are connected between the central remote controller and the outdoor unit, perform
the functional grounding at only one end of central control wiring.
2. Use 2-core and non-polarity wire for remote controller. (A, B terminals)
Use 2-core and non-polarity wire for wiring of group control. (A, B terminals)
(A, B)
30-EN
7
▼ Example of system wiring design
Outdoor power supply
: 1N ~ 50 Hz, 220 V-240 V
MCY-MAP***HT
MCY-MAP***HT2D : 1N ~ 60 Hz, 220 V
Central remote controller power supply
1N ~ 50 Hz, 220 V-240 V
1N ~ 60 Hz, 220 V
6
Installation of outdoor unit
When using the outdoor unit under the following conditions, it is necessary to set up DIP switch on the outdoor unit
interface P.C. board.
CAUTION
5
When anyone of the following condition is applied, set up DIP switch.
(Option)
1
2
3
4
5
6
7
8
9
4
L N
Earth
U1 U2
U3 U4
1. When using PMV Kit in the MINI-SMMS system
2. When using the indoor unit under high humidity condition
Outdoor unit
Indoor unit
Remote controller
Central remote controller (Option)
Over current breaker (Fuse) switch
Earth leakage breaker
Main switch
Pull box
PMV Kit (Option)
[Reference]
Indoor side: 27 °C dry bulb temperature
24 °C wet bulb temperature
Operation time 4 hours or more.
1
L N
„ Setup method
U1 U2 U3 U4
Earth
• Turn on DIP switch [SW08] on the interface P.C. board of the outdoor unit.
Relay connector (Factory default : No connection)
[Outdoor unit]
Communication wiring between indoor and outdoor units
Connection of shield wire must be connected
(Connected to all connecting sections in each Indoor unit)
Outdoor unit interface P.C. board
Communication wiring between indoor units
SW11
SW12
SW13
SW14
ON
ON
ON
ON
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
[Indoor unit]
PMV Kit
(Option)
2
2
2
U1 U2 A B
Earth
Indoor control
P.C. board
CN82
Earth
9
Earth
SW07 SW08
ON
ON
1 2 3 4 1 2 3 4
U1 U2 A B
SW09
SW10
ON ON
ON
1
1 2 3 4 1 2 3 4
Earth
L N
L N
SW06
2
U1 U2 A B
U1 U2 A B
L N
L N
Switch [SW08]
3
3
3
A B
A B
A B
Remote controller
[Group control]
7
6
8
8
8
CAUTION
1. Keep the refrigerant piping system and the indoor-indoor / indoor-outdoor control wiring systems together.
2. When running power supplies and control wires parallel to each other, run them through separate conduits or
maintain a suitable distance between them.
(Current capacity of power wires: 10A or less for 300 mm, 50A or less for 500 mm)
31-EN
EN
– 16 –
32-EN
– 17 –
„ Regulation of high frequency wave
This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than or equal to Ssc (*1)
at the interface point between the user’s supply and the public system. It is the responsibility of the installer or user of the
equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected
only to a supply with a short-circuit power Ssc greater than or equal to Ssc (*1)
Furthermore, when similar equipment or other equipment which may cause harmonic current emissions are to be
connected to the same interface point with this equipment, to reduce the risk of possible problems which may be caused
from addition of those harmonic current emissions, it is recommended to make sure that the short-circuit power Ssc at the
interface point is greater than the sum of the minimum Ssc required by all the equipment which will be connected to the
interface point.
Ssc (*1)
Model
Ssc (kVA)
MCY-MAP0401HT (Z) (ZG)
MCY-MAP0501HT (Z) (ZG)
MCY-MAP0601HT (Z) (ZG)
920
8
Address setting
In this air conditioner, it is necessary to set up the indoor address before starting the operation. Set up the
address in the following procedure.
CAUTION
1. Set up the address after the wiring work has been completed.
2. Be sure to turn on the power in order of indoor unit → outdoor unit. If turning on the power in the reverse order,
a check code [E19] is displayed. When a check code is displayed, turn on the power again.
3. It requires a maximum of 10 minutes (Usually, approx. 5 minutes) to automatically set-up an address for 1
system.
4. To set up an address automatically, the set-up of the outdoor unit needs to be completed.
(Address setup cannot be performed by power-ON only.)
5. To set up an address, the air conditioner does not need to be in operation.
6. Manual address setup is also available besides automatic setup.
Automatic address : Setup from SW15 on the interface P.C. board of the outdoor unit
Manual address
: Setup from the wired remote controller
* It is temporarily necessary to set-up the indoor unit as a 1:1 using a wired remote controller.
„ Automatic Address Setup
Without central control : To the address setup procedure 1
With central control
: To the address setup procedure 2
(However, go to the procedure 1 when the central control is performed in a single refrigerant system.)
(Example)
In case of central control in a single refrigerant system
In case of central control over refrigerant system
Address setup procedure
To procedure 1
To procedure 2
Wire systematic diagram
Outdoor
Central remote
controller
Outdoor
Central remote
controller
Outdoor
Indoor
Indoor
Indoor
Indoor
Indoor
Remote
controller
Remote
controller
Remote
controller
Remote
controller
Outdoor
Central remote
controller
Indoor
Indoor
Indoor
Remote
controller
Remote
controller
◆ Address setup procedure 1
1
2
Turn on power of indoor / outdoor units.
(In order of indoor → Outdoor)
After approx. 1 minute, check that U. 1. L08 (U. 1. flash)
is displayed in 7-segment display section on the interface
P.C. board of the outdoor unit.
Interface P.C. board
2, 4
D600 D601 D602 D603 D604
SW01 SW02 SW03
1
3
4
5
33-EN
3
SW04 SW05 SW15
1
1
Press SW 15 to start the automatic address setting.
(Max. 10 minutes for 1 line (Usually, approx. 5 minutes))
When the count Auto 1 → Auto 2 → Auto 3 is displayed
in 7-segment display section, and it changes from
U. 1. - - - (U. 1. flash) to
U. 1. - - - (U. 1. light) , the
setup finished.
When perform a central control, connect a relay
connector between [U1U2] of the outdoor unit and
[U3U4] terminals.
5
Relay connector
U1
U2
For control
wiring between
indoor and
outdoor
U3
U4
For wiring of
central control
system
34-EN
REQUIREMENT
• When a group control is performed over multiple
refrigerant systems, be sure to turn on the power
supplies to all of the indoor units connected, so that
the address set-up can be completed correctly.
• If turning on the power for each refrigerant system to
set up the addresses, a header indoor unit must be set
for each system. Therefore, an alarm code “L03”
(Duplicated header indoor units) will be displayed
during in operation after the address setup has been
completed. In this case, change the group address
using the wired remote controller so that only one
header indoor unit is set-up.
Wire
systematic
diagram
Outdoor
Outdoor
Indoor
Indoor
Indoor
9
Indoor
SW11
SW12
ON
ON
1 2 3 4 1 2 3 4
1
✕
{
✕
{
✕
{
✕
{
✕
{
✕
{
✕
{
SW11
SW12
ON
ON
1 2 3 4 1 2 3 4
SW06
SW13
SW14
ON ON
ON
1
1 2 3 4 1 2 3 4
SW07 SW08
SW09
SW10
SW15
7-segment
display
SW13
D600 D601 D602 D603 D604
SW01 SW02 SW03
SW07 SW08
SW09
4
✕
✕
✕
✕
✕
✕
✕
✕
{
{
{
{
{
{
Line
address
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
4
✕
✕
{
{
{
{
{
{
{
{
{
{
{
{
SW14
2
3
{
{
{
{
✕
✕
✕
✕
{
✕
{
✕
✕
{
✕
{
{
{
{
{
✕
✕
✕
✕
{
✕
{
✕
1
✕
{
✕
{
✕
{
✕
{
✕
{
✕
{
✕
{
1
1
Outdoor side (Manual setup)
* Manual setup is necessary for column of which letter color is reversed.
SW10
({ : Switch ON, ✕ : Switch OFF)
SW13
2
3
1
Switch setup
(Example in case of central control over refrigerant system)
SW14
ON ON
ON
1
1 2 3 4 1 2 3 4
Outdoor unit
Outdoor unit
Outdoor unit
Setup factory
default
1
2
3
1
ON
OFF after
address setup
OFF after
address setup
ON
Short after
address setup
Short after
address setup
Short after
address setup
Open
Outdoor interface
P.C. board
Line (System) address switch on outdoor interface P.C. board
4
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
✕
ON
ON
ON
ON
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Connect the relay connector between [U1U2] and
[U3U4] terminals of the outdoor unit for each
refrigerant line.
ON
ON
ON
ON
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
SW06
1
SW30
SW30
SW04 SW05 SW15
NOTE
SW14
2
3
✕
✕
✕
✕
{
✕
{
✕
✕
{
✕
{
{
{
{
{
✕
✕
✕
✕
{
✕
{
✕
✕
{
✕
{
ON
1 2
(For the central control address setup, refer to the
Installation manual of the central control devices.)
Be careful not to duplicate with any other refrigerant systems
or other line (system) addresses.
SW13
2
3
Interface P.C. board
Interface P.C. board
Using SW13 and 14 on the interface P.C.
board on the outdoor unit in each system,
set up the system address for each system.
(At shipment the address is set to 1 from the factory)
Line
address
1
2
3
4
5
6
7
8
9
10
11
12
13
14
When address setup has finished in all the
systems, turn off SW30-2 on the interface P.C.
boards of the lines connected to the identical central
control except a line with least line address number.
(Terminator resistors of the wires in the central
control line of indoor / outdoor are unified.)
10 Then set up the central control address.
Remote
controller
◆ Address setup procedure 2
1
8
Group control over
multiple refrigerant system
(Example)
SW13, 14
(Line address)
SW30-2
⎧Terminator resistor of
⎫
⎪indoor / outdoor communi- ⎪
⎪cation line / central control ⎪
⎭
⎩communication line
4
{
{
✕
✕
✕
✕
✕
✕
✕
✕
{
{
{
{
Relay connector
Outdoor unit
U3 U4
Outdoor unit
U3 U4
Central
remote controller
Outdoor unit
U3 U4
U1 U2
U3 U4
U1 U2
Relay
connector
Relay
connector
U1 U2
Relay
connector
: Is not used for setup of line address. (Do not change setup.)
2
3
4
5
6
7
35-EN
U1 U2
Check that the relay connectors between [U1U2] and [U3U4] terminals are come out in all outdoor
units to which the central control is connected. (Factory default : No connection of connector)
Turn on power of indoor / outdoor. (In order of indoor → outdoor)
Indoor units
(automatic setting)
After approx. 1 minute, check that 7-segment display is
U. 1. L08 (U. 1. flash) on the interface P.C. board.
Push SW15 and start setup the automatic address.
(Max. 10 minutes for 1 line (Usually, approx. 5 minutes))
When the count Auto 1 → Auto 2 → Auto 3 is displayed
in 7-segment display section, and it changes from
U. 1. - - - (U. 1. flash) to
U. 1. - - - (U. 1. light)
, the
setup finished.
Procedure
4 to 6 are repeated in other refrigerant systems.
U1 U2
A B
Remote
controller
U1 U2
A B
A B
Remote
controller
Remote
controller
Individual
U1 U2
A B
U1 U2
A B
Remote
controller
Group
Line address
1
1
2
2
Indoor unit address
1
2
1
2
3
1
Group address
0
0
1
2
0
CAUTION
2
Relay connector
U1
U2
For control
wiring between
indoor and
outdoor
U3
For relay connector
Never connect a relay connector until address setup for all the refrigerant systems finishes;
otherwise address cannot be correctly set up.
U4
For wiring of
central control
system
– 18 –
EN
36-EN
– 19 –
„ Manual address setup from remote controller
NOTE
In case to decide an address of the indoor unit prior to finish of indoor electric wiring work and unpracticed outdoor
electric wiring work (Manual setup from wired remote controller)
Arrange indoor unit in which address is
set up and the wired remote controller to 1 : 1.
(Wiring example in 2 lines)
Line 1
(Line
Line 2
address) →
Outdoor
Turn on the power.
1
2
3
Indoor
Remote
controller
Line address
Indoor address
Group address
Header
1
1
1
2
1
2
Follower
1
3
2
2
1
2
2
2
2
4
(Indoor
address) →
In the above example, under condition of
no inter-unit wire of the wired remote
controller, set the address after individual
connecting of the wired remote controller.
(Group address) →
5
6
7
8
Group address
Individual
Header unit
Follower unit
: 0000
: 0001
: 0002
9
}
In case of group control
SET
Push simultaneously
for 4 seconds or more.
LCD changes to flashing.
Using the setup temp.
set
to the CODE No.
+
CL
+
TEST
/
buttons
buttons,
Using the timer time
/
buttons, set up
the line address.
(Match it with the line address on the interface
P.C. board of the outdoor unit in the identical
refrigerant system.)
1. When setting the line address from the wired remote controller, do not use addresses 29 and 30.
The address 29 and 30 cannot be set up in the outdoor unit. Therefore if they are incorrectly set up, a check
code [E04] (Indoor / outdoor communication circuit error) will be displayed.
2. When an address has been manually setup from the wired remote controller and you wish to set up a central
control over the refrigeration system and setup the outdoor unit for each system using the following steps.
• Using SW13 and 14 on the interface P.C. board of the header unit in each system, set up the line address for
each system.
• Turn off SW30-2 on all other interface P.C. boards on the header outdoor units that are connected to the same
central control, not including the system with the least number of address lines. (The terminator resistor of the
cables in the central control system of indoor / outdoor are unified.)
• Connect the relay connector between [U1U2] and [U3U4] of the header outdoor unit for each refrigerant
system.
• Then set up the central control address.
(For the central control address setup, refer to the Installation manual of the central control devices.)
SET
Push
button.
(OK when display goes on.)
Using the setup temp.
set
to the CODE No.
Using the timer time
the indoor address.
/
buttons,
Confirmation of indoor unit No. and position
/
buttons, set up
SET
Push
button.
(OK when display goes on.)
Using the setup temp.
set
to the CODE No.
/
buttons,
Using the timer time
/
buttons, set
Individual =
, Header unit =
,
Follower unit =
.
10 Push
SET
„ Confirmation of indoor address and the main unit position on the
remote controller
1. When you want to know the indoor address though position of the indoor unit itself can be recognized;
• In case of individual operation (Wired remote controller : Indoor unit = 1 : 1) or group control
[Procedure] (Operation while the air conditioner operates)
1
2
If it stops, push
ON / OFF
button.
Push
button.
The unit NO
is displayed on the LCD. (Disappears after several seconds)
The displayed unit number indicates the line address and indoor address. (If there is other indoor unit
connected to the same remote controller (Group control unit), other unit number is displayed every pushing
button.)
button.
(OK when display goes on.)
Operation procedure
1 →2 →3 →4 →5 → 6 →
7 → 8 → 9 → 10 → 11 End
11 Push
TEST
button.
CODE No.
Setup operation finished.
(Status returns to normal stop status.)
UNIT No.
TEMP.
Data
ON / OFF
TIMER SET
TIME
2, 5, 8
4, 7, 10
11
FILTER
RESET TEST
SET
CL
FAN
MODE
SAVE
VENT
SWING/FIX
UNIT LOUVER
1
Operate
CODE No.
2
3, 6, 9
Operation procedure
1 →2
1
37-EN
38-EN
„ Change of indoor address from wired remote controller
2. When you want to know position of the indoor unit using the address
• To confirm the unit numbers in a group control;
[Procedure] (Operation while the air conditioner stops)
▼ To change the indoor address in individual operation (Wired remote controller : Indoor unit = 1 : 1)
or group control (When the setup operation with automatic address has finished, this change is available.)
[Procedure] (Operation while the air conditioner stops)
The indoor unit numbers in a group control are successively displayed, and the corresponding indoor fan is turned on.
1
2
3
VENT
TEST
Push
+
buttons simultaneously for
4 seconds or more.
• Unit No
is displayed.
• The fans of all the indoor units in a group control are
turned on.
Every pushing
button, the indoor unit
numbers in the group control are successively
displayed.
• The firstly displayed unit number on number indicates
the address of the header unit.
• Only fan of the selected indoor unit is turned on.
Push TEST button to finish the procedure.
All the indoor units in group control stop.
1
CODE No.
SET DATA SETTING
UNIT No.
R.C.
2
No.
TEMP.
3End
1
FILTER
RESET TEST
ON / OFF
TIMER SET
FAN
MODE
TIME
SAVE
VENT
SWING/FIX
UNIT LOUVER
SET
CL
Operation procedure
3
4
1
5
6
2
1 → 2 → 3 End
SET
Push simultaneously
+ CL + TEST buttons for 4 seconds or more.
(The firstly displayed unit No. indicates the header indoor unit in group control.)
In group control, select an indoor unit No. to be changed by
(The fan of the selected indoor unit is turned on.)
Using the setup temp.
Using the timer time
to change.
Push
SET
/
buttons, set
to the CODE No.
buttons, change the displayed setup data to a data which you want
button.
Using the
button, select the unit No. to be changed at the next time.
Repeat the procedure
7
8
/
button.
4 to 6 and change the indoor address so that it is not duplicated.
After the above change, push
If it is acceptable, push
TEST
button to confirm the changed contents.
TEST button to finish confirmation.
▼ To confirm all the unit numbers from an arbitrary wired remote controller;
[Procedure] (Operation while the air conditioner stops)
The indoor unit number and position in the same refrigerant line can be confirmed. A header unit is selected, the indoor unit
numbers in the same refrigerant system are successively displayed, and then its indoor unit fan is turned on.
1
2
3
4
Push the timer time
+ TEST buttons simultaneously for 4 seconds or more.
Firstly, the line 1, CODE No.
(Address Change) is displayed. (Select outdoor unit.)
Using
address.
and
SWING/FIX
buttons, select the line
UNIT No.
6
R.C
CODE No.
SET
Using
button, determine the selected line
address.
• The indoor address, which is connected to the
refrigerant system of the selected refrigerant system is
displayed and the fan is turned on.
Every pushing
button, the indoor unit
numbers in the same refrigerant system are
successively displayed.
• Only fan of the selected indoor unit operates.
To select another system address
5
CODE No.
SET DATA SETTING
CL
2
Push
button to return to procedure .
• The indoor address of another line can be successively
confirmed.
Push
TEST
button to finish the procedure.
No.
SET DATA SETTING
UNIT No.
R.C.
No.
TEMP.
1
6
3
ON / OFF
TIMER SET
TIME
FILTER
RESET TEST
3
5
8
1
SET
CL
FAN
MODE
SAVE
VENT
SWING/FIX
UNIT LOUVER
Operation procedure
2
4
5
TEMP.
FILTER
RESET TEST
ON / OFF
TIMER SET
FAN
TIME
SAVE
VENT
SWING/FIX
UNIT LOUVER
SET
CL
MODE
4
2, 6, 7
Operation procedure
1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 End
1 →2 →3 →
4 → 5 → 6 End
EN
39-EN
– 20 –
40-EN
– 21 –
„ Clearance of address
(Return to status (Address undecided) factory default)
▼ To change all the indoor unit addresses using an arbitrary wired remote controller.
(The method is available when the addresses have already been set automatically.)
Contents : Using an arbitrary wired remote controller, the indoor unit address can be changed for each unit within
the same refrigerant system.
Method 1
* Change the address in the address check / change mode.
[Procedure] (Operation while the air conditioner stops)
1
Push the timer time
+
TEST
buttons simultaneously for 4 seconds or more.
Firstly, the line 1, CODE No.
2
3
Using
SWING/FIX
/
An address is individually cleared from a wired remote controller.
“0099” is set up to line address, indoor address, and group address data from the wired remote controller.
(For the setup procedure, refer to the above-mentioned address setup from the wired remote controller.)
(Address Change) is displayed.
Method 2
Clear the indoor addresses in the same refrigerant system from the outdoor unit.
buttons, select the line address.
SET
Push
button.
• The indoor address, which is connected to the refrigerant system of the selected header unit is displayed
and the fan is turned on.
First the current indoor address is displayed on the setup data. (Line address is not displayed.)
4
The indoor address of the setup data moves up/down by the timer time
Change the setup data to a new address.
5
6
Push
SET
/
1
buttons.
Turn off the power of the refrigerant system to be returned to the status factory default, and
change the outdoor unit to the following status.
1) Remove the relay connector between [U1U2] and [U3U4].
(If it has been already removed, leave it as it is.)
2) Turn on SW30-2 on the interface P.C. board of the outdoor unit if it is ON.
(If it has been already ON, leave it as it is.)
Central control
device
button to determine the setup data.
U1 U2
U3 U4
Every pushing
button, the indoor unit numbers in the same refrigerant line are
successively displayed. Only fan of the selected indoor unit operates.
Repeat the procedure
7
Center unit
U3 U4
4 to 6 and change all the indoor addresses so that they are not duplicated.
Outdoor unit
U1 U2
SET
Push
button.
(All the displays on LCD go on.)
8
Push
TEST
Center unit
U3 U4
U3 U4
Outdoor unit
U1 U2
Outdoor unit
U1 U2
button to finish the procedure.
U1 U2
U1 U2
U1 U2
A B
A B
A B
Remote
controller
Remote
controller
Remote
controller
U1 U2
A B
U1 U2
A B
Remote
controller
Unit of which address is to be returned to the initial status
CODE No.
CODE No.
SET DATA SETTING
2
SET DATA SETTING
UNIT No.
R.C
UNIT No.
No.
TEMP.
R.C
ON / OFF
No.
TEMP.
Turn on the indoor / outdoor power of which address is to be cleared. After approx. 1 minute,
check that “U.1. - - -” is displayed, and then execute the following operation on the interface P.C.
board of the outdoor unit of which address is to be cleared in the refrigerant system.
ON / OFF
SW01
TIMER SET
1
TIME
FILTER
RESET TEST
SET
CL
FAN
MODE
SAVE
VENT
SWING/FIX
UNIT LOUVER
3
Deletion of line selection
Here, if the unit No. is not called up, the
header unit in this system does not exist.
Push
CL
button, and then select a line
according to procedure 2.
TIMER SET
2
4
8
FAN
2
TIME
FILTER
RESET TEST
SET
CL
5, 7
SAVE
VENT
SWING/FIX
UNIT LOUVER
To finish the set
2
6
3
4
Operation procedure
1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 End
SW03
SW04
Address which can be cleared
2
After checking that “A.d.buS” is displayed on 7-degment
display, and then push SW04 for 5 seconds or more.
1
Line + Indoor + Group address
2
After checking that “A.d.nEt” is displayed on 7-degment
display, and then push SW04 for 5 seconds or more.
2
Central address
After “A.d. c.L.” has been displayed on 7-degment display, return SW01 / SW02 / SW03 to 1/1/1.
When the address clearing has correctly finished, “U.1.L08” is displayed on 7-degment display
after a while.
If “A.d. n.G.” is displayed on 7-degment display, there is a possibility which is connected with the other
refrigerant system. Check again the relay connector between [U1U2] and [U3U4] terminals.
NOTE
Be careful that the other refrigerant system address may be also cleared if clearing operation is not correctly executed.
5
41-EN
SW02
MODE
After clearing of the address, set up an address again.
42-EN
9
Test run
„ In case of test run on the interface P.C. board of the outdoor unit
„ Before test run
This air conditioner has a function which executes a test run by operation of the switches on the interface P.C. board of the
outdoor unit.
This function is classified into “Individual test run” which performs a test run individually in each indoor unit and “Collective test
run” which performs a test run for all the connected indoor units.
Check valve of the refrigerant pipe of the outdoor unit is “OPEN”.
• Using 500 V-megger, check there is 1 MΩ or more between the terminal block of the power supply and the earth. If the value
is below 1 MΩ, do not operate the air conditioner.
[Individual test run]
Procedure
WARNING
1
• In order to protect the compressor, keep the power ON for a period of 12 hours or more before starting the air conditioner.
2
„ How to perform a test run
7-segment display
Set the rotary switch SW01 on the interface P.C. board of the
outdoor unit to [16], and match SW02 and SW03 to the
address of the indoor unit to be operated with test mode.
Start
operation
In case of test run on the wired remote controller
Check the operation of the air conditioner in usual operation by the wired remote controller.
For the procedure of the operation, refer to the attached Owner’s Manual.
For a case of using a wireless remote controller, refer to the Installation Manual of the indoor unit.
A forced test run is available in the following procedure under condition that the thermostat-OFF in the room.
In a forced test run, the test run is cleared after operation for 60 minutes and then returns to the usual operation in order to
prevent a serial operation.
NOTE
TEMP.
Do not use the forced test run for cases other than the test
run because it applies an excessive load to the air
conditioner.
◆ In case of wired remote controller
Procedure
ON / OFF
TIMER SET
TIME
1, 5
FILTER
RESET TEST
SET
CL
FAN
MODE
SAVE
VENT
SWING/FIX
UNIT LOUVER
3
Stop
operation
2, 4
3
Push SW04 for 10 seconds or more.
• Operation mode changes to the operation mode of wired
remote controller of the corresponding indoor unit.
• Temperature cannot be adjusted during “Test run”.
• Error is detected as usual.
• Test run is not performed 3 minutes after power was turned
on or operation has stopped.
1
[B]
[
[A]
]
[B]
[
]
↓
Address display of the
corresponding indoor unit
[
[A]
]
[B]
[
]
↓
Address display of the
corresponding indoor unit
[A]
[U1]
[
]
↓
[FF] is displayed
for 5 seconds.
[B]
[
]
[Collective test run]
Procedure
1
TEST
Operation
7-segment display
Set the rotary switches of interface P.C. board of the outdoor unit;
All cooling operation: SW01 = [2], SW02 = [5], SW03 = [1]
All heating operation: SW01 = [2], SW02 = [6], SW03 = [1]
[A]
[C
]
[H
]
[
[
[A]
[C
]
[H
]
[B]
[ –C ]
[ –H ]
Start
operation
2
Push SW04 for 2 seconds or more.
• Temperature cannot be adjusted during “Test run”.
• Error is detected as usual.
• Test run is not performed 3 minutes after power was turned on or
operation has stopped.
Stop
operation
1
Return the rotary switches on the interface P.C. board of the outdoor
unit, SW01 = [1], SW02 = [1], SW03 = [1].
Operation
When pushing
button for 4 seconds or more, [TEST] is displayed
on the display part and the mode changes to test run mode.
([TEST] is displayed on the display part during test run.)
[A]
[U1]
Return the rotary switches on the interface P.C. board of the
outdoor unit, SW01 = [1], SW02 = [1], SW03 = [1].
TEST
1
Operation
Set operation mode on wired remote controller of the indoor
unit which is operated with test mode to [COOL] or [HEAT].
(When it is not set up, operate the air conditioner with the
current operation mode.)
[A]
[U1]
[B]
]
]
[B]
[
]
Interface P.C. board
ON
ON
1 2 3 4 1 2 3 4
2
ON / OFF
Push
button.
SW06
ON ON
ON
1
1 2 3 4 1 2 3 4
SW07 SW08
SW09
SW10
MODE
3
Using
button, change the operation mode to [COOL] or [HEAT].
• Do not drive the air conditioner with a mode other than [COOL] or [HEAT].
• The temperature cannot be adjusted during test run.
• An error is detected as usual.
Push switch
Push switch
SW04 SW05 SW15
SW04 SW05 SW15
D600 D601 D602 D603 D604
SW01 SW02 SW03
1
1
7-segment
display [A]
7-segment
display [B]
1
D600 D601 D602 D603 D604
SW01 SW02 SW03
1
4
After the test run has finished, push
(Display is same to that in procedure
ON / OFF
1
1.)
Rotary switch
TEST
5
1
button to stop the operation.
Push
button to clear the test run mode.
([TEST] in the display part disappears and the status changes to the usual
stop status.)
EN
43-EN
– 22 –
44-EN
– 23 –
10 Troubleshooting
Check code
Outdoor 7-segment display
In addition to the check code on the remote controller of the indoor unit, a trouble of the outdoor unit can be
diagnosed by 7-segment display of the control P.C. board of the outdoor unit. Make good use of this function for
various checks. After check, return each bit of Dip switch to OFF position.
▼ Segment display and check code
Rotary switch setup value
SW01
SW02
SW03
Displayed contents
LED
D600 D601 D602 D603 D604
A
B
Check code name
01: Compressor 1
Compressor breakdown
H02
01: Compressor 1
Magnet switch error
Over-current relay operation
Compressor trouble (Lock)
H03
01: Compressor 1
Current detective circuit system error
H04
—
Compressor 1 case thermo operation
H06
—
Low-pressure protective operation
L04
L06
—
Number of indoor units with priority
Outdoor line address duplicated
Duplication of indoor units with priority
L08
—
L10
—
Outdoor capacity unset
L18
Detected indoor address
Flow selector unit error
L29
IPDU quantity information
IPDU quantity error
L30
Detected indoor address
External interlock of indoor unit
Check Code (Outdoor 7-segment display [B])
L31
—
Displayed when SW01: 1, SW02: 1, SW03: 1
P03
—
1
1
1
Check code of outdoor unit
A
Outdoor unit No. (U1 only)
B
Check code display*
* However, when there is an auxiliary code, the check code (for 3 seconds) and the auxiliary code (for 1 second)
are alternately displayed.
Check code
Outdoor 7-segment display
E06
P04
Auxiliary code
Number of indoor unit which received normally
E07
—
Check code name
01: Compressor 1
Heat sink overheat error
Detected indoor address
Indoor overflow error
Indoor / Outdoor communication circuit error
P13
Duplication of indoor addresses
P15
01: TS condition
P19
Detected outdoor unit number
01: Communication between indoor and outdoor
Automatic address start error
02: Communication between outdoor units
Outdoor fan IPDU error
01: Compressor 1
IGBT short protection error
P29
01: Compressor 1
Compressor position detective circuit
system error
00: Header is nothing
02: Two or more header units
Number of header outdoor units error
E20
01: Other system outdoor connected
02: Other system indoor connected
Other refrigerant system connected during
automatic addressing
E31
IPDU quantity information
IPDU communication error
F04
—
F06
—
TE1 sensor error
F07
—
TL sensor error
F13
01: Compressor 1
4-way valve inverse error
High-pressure protective operation
P26
E19
F15
—
Outdoor liquid back detection error
Gas leak detection
* A : Fan motor circuit error
* d : Fan motor lock
00: Capacity over 01~: No. of connected units
—
P20
02: TD condition
P22
E16
01: TS1 sensor error
—
Indoor is nothing during automatic
addressing
Capacity over / Number of connected
indoor units
F12
Discharge temp TD1 error
High-pressure SW system operation
P10
E12
F08
Extended I/C error
P07
Duplicated indoor addresses
—
01: Compressor 1
Indoor group / Address unset
Decrease of number of indoor units
E08
E15
45-EN
Auxiliary code
H01
TD1 sensor error
TO sensor error
TS1 sensor error
TH sensor error
—
Outdoor temp. sensor miswiring (TE, TL)
F16
—
Outdoor pressure sensor miswiring (Pd, Ps)
F23
—
Ps sensor error
F24
—
Pd sensor error
F31
—
Outdoor EEPROM error
46-EN
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– 26 –
WARNINGS ON REFRIGERANT LEAKAGE
Check of Concentration Limit
The room in which the air conditioner is to be installed
requires a design that in the event of refrigerant gas
leaking out, its concentration will not exceed a set limit.
The refrigerant R410A which is used in the air conditioner is
safe, without the toxicity or combustibility of ammonia, and is
not restricted by laws to be imposed which protect the ozone
layer. However, since it contains more than air, it poses the
risk of suffocation if its concentration should rise excessively.
Suffocation from leakage of R410A is almost non-existent.
With the recent increase in the number of high concentration
buildings, however, the installation of multi air conditioner
systems is on the increase because of the need for effective
use of floor space, individual control, energy conservation by
curtailing heat and carrying power etc.
Most importantly, the multi air conditioner system is able to
replenish a large amount of refrigerant compared with
conventional individual air conditioners. If a single unit of the
multi conditioner system is to be installed in a small room,
select a suitable model and installation procedure so that if
the refrigerant accidentally leaks out, its concentration does
not reach the limit (and in the event of an emergency,
measures can be made before injury can occur).
In a room where the concentration may exceed the limit,
create an opening with adjacent rooms, or install mechanical
ventilation combined with a gas leak detection device.
The concentration is as given below.
Total amount of refrigerant (kg)
Min. volume of the indoor unit installed room (m3)
Important
NOTE 2 :
The standards for minimum room volume are as
follows.
(1) No partition (shaded portion)
(2) When there is an effective opening with the adjacent
room for ventilation of leaking refrigerant gas (opening
without a door, or an opening 0.15 % or larger than the
respective floor spaces at the top or bottom of the door).
Outdoor unit
Refrigerant piping
Indoor unit
(3) If an indoor unit is installed in each partitioned room and
the refrigerant piping is interconnected, the smallest
room of course becomes the object. But when a
mechanical ventilation is installed interlocked with a gas
leakage detector in the smallest room where the density
limit is exceeded, the volume of the next smallest room
becomes the object.
≤ Concentration limit (kg/m3)
Refrigerant piping
The concentration limit of R410A which is used in multi air
conditioners is 0.3 kg/m3.
NOTE 1 :
If there are 2 or more refrigerating systems in a single
refrigerating device, the amounts of refrigerant should be as
charged in each independent device.
Outdoor unit
Very
small
room
Indoor unit
Small
room
Medium
room
Large room
Mechanical ventilation device - Gas leak detector
Outdoor unit
e.g., charged
amount (10 kg)
e.g.,
charged amount (15 kg)
NOTE 3 :
The minimum indoor floor area compared with the amount of
refrigerant is roughly as follows:
(When the ceiling is 2.7 m high)
40
Indoor unit
EH99888801
For the amount of charge in this example:
The possible amount of leaked refrigerant gas in rooms A,
B and C is 10 kg.
The possible amount of leaked refrigerant gas in rooms
D, E and F is 15 kg.
Min. indoor floor area
Room A Room B Room C Room D Room E Room F
Range below the
m2 35 density limit of
3
30 0.3 kg/m
(countermeasures
not
needed)
25
20
15
10
5
0
Range above the
density limit of
0.3 kg/m3
(countermeasures
needed)
10
20
30
Total amount of refrigerant
kg