Toshiba MMD-AP0074SPH-E, MMD-AP0094SPH-E, MMD-AP0124SPH-E, MMD-AP0154SPH-E, MMD-AP0184SPH-E Installation Manual

Installation Manual

English

Indoor Unit

Model name:

Slim Duct Type

MMD-AP0074SPH-E
MMD-AP0094SPH-E
MMD-AP0124SPH-E
MMD-AP0154SPH-E
MMD-AP0184SPH-E

AIR CONDITIONER (MULTI TYPE)

Installation Manual

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Installation Manual

SMMS Slim Duct Type

Installation Manual

Original instruction

Contents

1 Precautions for Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Accessory Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Selection of Installation Place . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5 Drain Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6 Duct Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

7 Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

8 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

9 Applicable Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

10 Test Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

11 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

12 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

13 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Please read this Installation Manual carefully before installing the Air Conditioner.

• This Manual describes the installation method of the indoor unit.

• For installation of the outdoor unit, follow the Installation Manual attached to the outdoor unit.

ADOPTION OF NEW REFRIGERANT

This Air Conditioner uses R410A an environmentally friendly refrigerant.

Thank you for purchasing this Toshiba air conditioner.
Please read carefully through these instructions that contain important information which complies with the
“Machinery” Directive (Directive 2006/42/EC), and ensure that you understand them.
After completing the installation work, hand over this Installation Manual as well as the Owner’s Manual attached
to the outdoor unit provided with the outdoor unit to the user, and ask the user to keep them in a safe place for
future reference.

Generic Denomination: Air Conditioner

Definition of Qualified Installer or Qualified Service Person

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.

Agent 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.

1-EN 2-EN

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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.

Work undertaken Protective gear worn

All types of work

Protective gloves
‘Safety’ working clothing

Electrical-related
work

Gloves to provide protec tion for electricians and from h eat
Insulating shoes
Clothing to provide protection from electr ic 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 indications on the air conditioner unit

Warning indication 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.

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.

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.

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.

3-EN 4-EN

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1 Precautions for Safety

The manufacturer shall not assume any liability for the damage caused by not observing the description of this
manual.

WARNING

General

• Before starting to install the air conditioner, read through the Installation Manual carefully, and follow its instructions
to install the air conditioner.

• Only a qualified installer or service person is allowed to do installation work. Inappropriate installation may result in
water leakage, electric shock or fire.

• 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 intake grille of the indoor unit or 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 intake grille of
the indoor unit or service panel of the outdoor unit and do the work required.

• Before carrying out the installation, maintenance, repair or removal work, set the circuit breaker to the OFF position.
Otherwise, electric shocks 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 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 work is performed at heights, use a ladder which complies with the ISO 14122 standard, and follow the
procedure in the ladder’s instructions. Also wear a helmet for use in industry as protective gear to undertake the work.

• Before 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.

• Before 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. While carrying out the work,
wear a helmet for protection from falling objects.

• The refrigerant used by this air conditioner is the R410A.

• The air conditioner must be transported in stable condition. If any part of the product is broken, contact the dealer.

• When the air conditioner must be transported by hand, carry it by two or more people.

• Do not move or repair any unit by yourself. There is high voltage inside the unit. You may get electric shock when
removing the cover and main unit.

Selection of installation location

• When the air conditioner is installed in a small room, provide appropriate measures to ensure that the concentration
of refrigerant leakage occur in the room does not exceed the critical level.

• Do not install in a location where flammable gas leaks are possible. If the gas leak and accumulate around the unit,
it may ignite and cause a fire.

• To transport the air conditioner, wear shoes with additional protective toe caps.

• To transport 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.

Installation

• Suction duct length must be longer than 850 mm.

• When the indoor unit is to be suspended, the designated hanging bolts (M10 or W3/8) and nuts (M10 or W3/8) must
be used.

• Install the air conditioner securely in a location where the base can sustain the weight adequately. If the strength is
not enough, the unit may fall down resulting in injury.

• 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 trouble.

• Carry out the specified installation work to guard against the possibility of high winds and earthquake. If the air
conditioner is not installed appropriately, a unit may topple over or fall down, causing an accident.

• 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 generate.

• Use forklift to carry in the air conditioner units and use winch or hoist at installation of them.

• Helmet must be worn to protect your head from falling objects.
Especially, when you work under an inspection opening, helmet must be worn to protect your head from falling
objects from the opening.

• The unit can be accessed from the service panel shown in the figure.

Refrigerant piping

• 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.

• 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.

Electrical wiring

• 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.

• To connect the electrical wires, repair the electrical parts or undertake 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.

• 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.

• Connect earth wire. (Grounding work)
Incomplete grounding causes an electric shock.

• Do not connect earth wires to gas pipes, water pipes, and lightning conductor or telephone earth wires.

• After completing the repair or relocation work, check that the earth 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 the power wire must not be extended. Connection trouble in the places where the wire 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.

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Test run

• Before operating the air conditioner after having completed the work, check that the electrical parts 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.

• If there is any kind of trouble (such as an error display has appeared, smell of burning, abnormal sounds, 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 trouble.

• After the work has finished, use an insulation tester set (500 V Megger) to check the resistance is 1 MΩ or more
between the charge section and the non-charge metal section (Earth section). If the resistance value is low, a disas ter
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 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.

Relocation

• 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.

CAUTION

New Refrigerant Air Conditioner Installation

• 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, do not let water, dust, former refrigerant, or refrigerating oil enter the refrigerating cycle
during installation work.

• 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 types can be used) must be used for the power supply line of this conditioner.

(*1) Refer to the “Definition o f Qualified Installer or Qualified Ser vice Person.”

2 Accessory Parts

Part name Q’ty Shape Usage

Installation Manual 1 This manual

(Hand over to customers)
(For other languages that do not appear in this Installation Manual,

please refer to the enclosed CD-R.)

CD-ROM 1 — Installation Manual

Heat insulating pipe 2 For heat insulation of pipe connecting section

Washer 8 For hanging-up unit (M10 × Ø34)

Hose band 1 For connecting drain pipe

Flexible hose 1 For adjustment of drain pipe centering

Heat insulator 1 For insulating drain connecting section

7-EN 8-EN

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3 Selection of Installation Place

Avoid installing in the following places.

Select a location for the indoor unit where the cool or warm air will circulate evenly.
Avoid installation in the following kinds of locations.

• Saline area (coastal area)

• Locations with acidic or alkaline atmospheres (such as areas with hot springs, factories where chemicals or
pharmaceuticals are made and places where the exhaust air from combustion appliances will be sucked into the
unit).
Doing so may cause the heat exchanger (its aluminum fins and copper pipes) and other parts to become
corroded.

• Locations with atmospheres with mist of cutting oil or other types of machine oil.
Doing so may cause the heat exchanger to become corroded, mists caused by the blockage of the heat
exchanger to be generated, the plastic parts to be damaged, the heat insulators to peel off, and other such
problems to result.

• Locations where vapors from food oils are formed (such as kitchens where food oils are used).
Blocked filters may cause the air conditioner’s performance to deteriorate, condensation to form, the plastic parts
to be damaged, and other such problems to result.

• Locations near obstructions such as ventilation openings or lighting fixtures where the flow of the blown air will
be disrupted (a disruption of the air flow may cause the air conditioner’s performance to deteriorate or the unit to
shut down).

• Locations where an in-house power generator is used for the power supply.
The power line frequency and voltage may fluctuate, and the air conditioner may not work properly as a result.

• On truck cranes, ships or other moving conveyances.

• The air conditioner must not be used for special applications (such as for storing food, plants, precision
instruments or art works).
(The quality of the items stored may be degraded.)

• Locations where high frequencies are generated (by inverter equipment, in-house power generators, medical
equipment or communication equipment).
(Malfunctioning or control trouble in the air conditioner or noise may adversely affect the equipment’s operation.)

• Locations where there is anything under the unit installed that would be compromised by wetness.
(If the drain has become blocked or when the humidity is over 80 %, condensation from the indoor unit will drip,
possibly causing damage to anything underneath.)

• In the case of the wireless type of system, rooms with the inverter type of fluorescent lighting or locations
exposed to direct sunlight.
(The signals from the wireless remote controller may not be sensed.)

• Locations where organic solvents are being used.

• The air conditioner cannot be used for liquefied carbonic acid cooling or in chemical plants.

• Location near doors or windows where the air conditioner may come into contact with high-temperature, high­humidity outdoor air.
(Condensation may occur as a result.)

• Locations where special sprays are used frequently.

 Installation under high-humidity atmosphere

In some cases including the rainy season, especially inside of the ceiling may become high-humidity atmosphere
(dew-point temperature: 23 °C or higher).

1. Installation to inside of the ceiling with tiles on the roof

2. Installation to inside of the ceiling with slated roof

3. Installation to a place where inside of the ceiling is used for pathway to intake the fresh air

4. Installation to a kitchen

• In the above cases, additionally attach the heat insulator to all positions of the air conditioner, which come to
contact with the high-humidity atmosphere. In this case, arrange the side plate (Check port) so that it is easily
removed.

• Apply also a sufficient heat insulation to the duct and connecting part of the duct.

 Installation space (Unit: mm)

Reserve sufficient space required for installation or service work.

[Reference] Condensation test conditions

Indoor side:

27 °C dry bulb temperature
24 °C wet bulb temperature

Air volume: Low air volume, operation time 4 hours

<Under air intake> <Back air intake>

Air discharge

100 or more

250 or

more

5 or more

210

235 or more

5 or more

235 or
more

210

50 or more

Air intake

2500 or more

Floor surface

Ceiling

Ceiling

300 or more

Floor surface

2500 or more

210

235 or
more

5 or more

Air intake

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 Service space

Air outlet

Ceiling

50

50

945

645

645

Service door (Ceiling opening)

Air filter

Service door (Ceiling opening)

945

945

745

745

645

 Arranging the to back air intake type

<Back air intake>

 Filter cleaning sign term setting

The lighting term setup of the filter sign (Notification of filter cleaning) of the remote controller can be changed
according to the condition of installation.
For setup method, refer to “Filter sign setting” in the Applicable controls of this Manual.

Remove the cover plate and
then fix it to the bottom
surface.

Do surely hooking to the
main unit.

Main unit

(after remover)

Air filter

Main unit

Air filter

Force

Remove the filter from the main unit while pushing
down on the tabs.

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4 Installation

CAUTION

Strictly comply with the following rules to prevent damage of the indoor units and human injury.

• Do not put a heavy article on the indoor unit or let a person get on it. (Even units are packaged)

• Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity, use buffering
cloth or other material to not damage the unit.

• To move the indoor unit, hold the hooking brackets (4 positions) only.
Do not apply force to the other parts (refrigerant pipe, drain pan, foamed parts, resin parts or other parts).

• Hanging bolt pitch of air inlet chamber side is different (centre position), make sure not to make mistake to install the
setting direction.

• Carry the package by two or more persons, and do not bundle it with plastic band at positions other than specified.

 External dimensions (Unit: mm)

803 (inside)

Refrigerant piping

845

805
910

Air filter

Fresh air inlet
(knock-out hole)

Hung-up plate

Drain-up port

33

4-Ø4

168

(inside)

210

57

67

511

67

645

80

168

120

21

80

59

103

21

20

40

359

372

422

502

19

21

21

163

Ø92

31

 Installation of hanging bolt

• Consider the piping / wiring after the unit is hung to determine the location of the indoor unit installation and
orientation.

• After the location of the indoor unit installation has been determined, install hanging bolts.

• For the dimensions of the hanging bolt pitches, refer to the external view.

• When a ceiling already exists, lay the drain pipe, refrigerant pipe, control wires, and remote controller wires to
their connection locations before hanging the indoor unit.

Procure hanging bolts washer and nuts for installing the indoor unit (these are not supplied).

Installation of hanging bolt

Use M10 hanging bolts (4 pcs, to be local procure).
Matching to the existing structure, set pitch according to size in the unit external view as shown below.

Hanging bolt M10 or W3/8 4 pieces

Nut M10 or W3/8 12 pieces

New concrete slab

Install the bolts with insert brackets or anchor bolts.

Steel flame structure

Use existing angles or install new support angles.

Existing concrete slab

Use a hole-in anchors, hole-in plugs, or a hole-in bolts.

Rubber

Anchor bolt

(Blade type
bracket)

(Slide type bracket)

(Pipe hanging
anchor bolt)

Hanging bolt

Hanging bolt

Support angle

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 Installation of indoor unit

Treatment of ceiling

The ceiling differs according to structure of building.
For details, consult your constructor or interior finish
contractor.
In the process after the ceiling board has been
removed, it is important to reinforce ceiling foundation
(frame) and to keep horizontal level of installed ceiling
correctly in order to prevent vibration of ceiling board.

• Attach the nuts and the M10 flat washers to the
hanging bolt.

• Put washers at up and down of the hanging bracket
of the indoor unit to hang down the indoor unit.

• Check that four sides are horizontal with a level
gauge. (Horizontal degree: Within 5 mm)

 Installation of remote

controller (Sold separately)

For installation of the wired remote controller, follow the
Installation Manual attached with the remote controller.

• Pull out the remote controller cord together with the
refrigerant pipe or drain pipe.
Pass the remote controller cord through upper side
of the refrigerant pipe and drain pipe.

• Do not leave the remote controller at a place
exposed to the direct sunlight and near a stove.

 Wireless remote controller

The sensor of indoor unit with wireless remote
controller can receive a signal by distance within
approx. 8 m. Based upon it, determine a place where
the remote controller is operated and the installation
place.

• Operate the remote controller, confirm that the
indoor unit receives a signal surely, and then install
it.

• Keep 1 m or more from the devices such as
television, stereo.
(Disturbance of image or noise may generate.)

• To prevent a malfunction, select a place where is not
influenced by a fluorescent light or direct sunlight.

• Two or more (Up to 6 units) indoor units with wireless
type remote controller can be installed in the same
room.

Nut

(W3/8 or M10)

M10 flat washer
(Accessory)

M10 flat washer
(Accessory)

Hanging bolt

(W3/8 or M10)

Nut
(W3/8 or M10)

8

m

o

r

l

e

s

s

5 Drain Piping

CAUTION

Following the Installation Manual, perform the drain
piping work so that water is properly drained, and
apply a heat insulation so as not to cause a dew
drop.
Inappropriate piping work may result in water
leakage in the room and wet of furniture.



Piping / Heat insulating material

Require the following materials for piping and heat
insulating at site.

 Flexible hose

Use the attached flexible hose to adjust centre
discrepancy of the hard vinyl chloride pipe or to adjust
the angle.

• Do not use the flexible hose as stretched, or do not
deform it more extent than that in the following figure.

• Fix the soft end of the flexible hose with the attached
hose band.

• Use the flexible hose on a horizontal level.

REQUIREMENT

• Perform heat insulation of the drain pipes of the indoor
unit.

• Perform heat insulation of the connecting part with the
indoor unit.
An incomplete heat insulation causes dew drop.

• Set the drain pipe with downward slope (1/100 or
more), and do not make swelling or trap on the piping.
It may cause an abnormal sound.

• For length of the traversing drain pipe, restrict to 20 m
or less.
To use a long pipe, provide support brackets with
interval of 1.5 - 2 m in order to prevent waving.

• Set the collective piping as shown in the below figure.

• Do not apply force to the connecting part of the drain
pipe.

• The hard vinyl-chloride pipe cannot be directly
connected to the drain pipe connecting port of the
indoor unit.
For connection with the drain pipe connecting port, fix
the attached flexible hose with the hose band,
otherwise a damage or water leak is caused on the
drain pipe connecting port.

Piping

Hard vinyl chloride pipe VP25
(Outer dia.: Ø32 mm)

Heat insulator

Foam polyethylene:
Thickness 10 mm or more

OK

NO GOOD

max
45°

max
45°

90° Bend

Riser (Trap)

Top view

Side view

Side view

Air outlet

Side view

Air outlet

Air outlet

Support
bracket

1/100 or more
downward

Heat insulator

1.5 - 2 m
Arched
shape

Trap

NO

GOOD

VP25

As long as possible (100 mm)

Downward slope
1/100 or more

VP30 or more

VP25

VP25

15-EN 16-EN

– 9 –

SMMS Slim Duct Type

Installation Manual

SMMS Slim Duct Type

Installation Manual

 Connecting drain pipe

• Connect a hard socket (locally procured) to the hard
socket of the attached supplied flexible hose.

• Connect a drain pipe (locally procured) to the
connected hard socket.

REQUIREMENT

• Connect hard vinyl chloride pipes securely using an
adhesive for vinyl chloride to avoid water leakage.

• It takes some time until the adhesive is dried and
hardened (refer to the manual of t he adhesive). Do not
apply stress to the joint with the drain pipe during this
time period.

 Drain up

When a down-gradient cannot be secured for the
drainpipe, drain-up piping is possible.

• The height of the drain pipe must be 850 mm or less
from the bottom of the ceiling.

• Take the drain pipe out of the drain pipe joint with the
indoor unit in 300 mm or less, and bend up the pipe
vertically.

• Immediately after the pipe is bent up vertically, lay
the pipe making a down-gradient.

• Set downward grading immediately after raising up
vertically.

 Check the draining

In the test run, check that water drain is properly
performed and water does not leak from the connecting
part of the pipes.
Check draining also when installed in heating period.
By using a pitcher or hose, pour water (1500 - 2000 cc)
into the discharge port before installation of the ceiling
panel.
Pour water gradually so that water does not spread on
the motor of the drain pump.

CAUTION

Pour water gently so that it does not spread around
inside the indoor unit, which may cause a malfunction.

Drain pipe
connecting port
(Transparent)

Adhesive inhibited:

Use the attached flexible hose and hose band for
connecting the drain hose to the clear drain socket.
If applying the adhesive, socket will be damaged and
cause water leakage.

Align the attached hose band to
the end of hose, set the
tightening position upward, and
then tighten it.

Flexible hose
(Accessory)

Socket for VP25 vinyl chloride pipe
(locally procured)

Drain pipe
connecting port
(Hard socket)

VP25 vinyl chloride pipe
(locally procured)

Attached hose
band

Attached flexible hose

Soft socket

Hard socket

Socket for VP25
(locally procured)

VP25 vinyl
chloride pipe
(locally procured)

Indoor unit

Indoor unit

Rising up 687 mm

or less

Underside of ceiling

Indoor unit

300 mm or less

Rising up 850 mm or less

CAUTION

Pour water gently so that it does not spread around inside the indoor unit, which may cause a malfunction.

• After the electric work has finished, pour water
during COOL mode operation.

• If the electric work has not yet finished, pull out the float switch connector (CN34: Red) from the electrical control
box, and check draining by plugging the single phase 220 - 240 V power to the terminal blocks R (L) and S (N).
If doing so, the drain pump motor operates.

• Test water drain while checking the operation sound of the drain pump motor.
(If the operation sound changes from continuous sound to intermittent sound, water is normally drained.)
After the check, the drain pump motor runs, connecting the float switch connector.
(In case of check by pulling out the float switch connector, be sure to return the connector to the original position.)

Pump

Insert the edge of hose into the
drain pan and bend it downward.

Water
(1500 cc ~ 2000 cc)

Vessel

Cover plate

L N

Pull out connector CN34 (Red)
from P.C. board.

CN34
(RED)

Black

Black

Red

White

Power
terminals

220 - 240 V, 50 Hz
220 V, 60 Hz

17-EN 18-EN

– 10 –

SMMS Slim Duct Type

Installation Manual

EN

SMMS Slim Duct Type

Installation Manual

 Perform heat insulating

• As shown in the figure, cover the flexible hose and hose band with the attached heat insulator up to the bottom
of the indoor unit without gap.

• Cover the drain pipe seamlessly with a heat insulator to be procured locally so that it overlaps with the attached
heat insulator of the drain connecting section.

* Direct the slits and seams of the heat insulator upward to avoid water leakage.

Wrap the attached heat insulator seamlessly from
the surface of the indoor unit.

Flexible hose

Hose band

Attached heat
insulator

Heat insulator to be
procured locally

Hard vinyl chloride pipe

6 Duct Design

 Arrangement (Unit: mm)

Referring to the following dimensions, manufacture duct at the local site.

<Under air intake>

<Back air intake>

805

100

100

100

100

100

100

100

100

12.5

12.5

45.3

100

100

41.5

8.2 or less

286.8

266

825

170

44.3

44.3

100

188

805

825

100

100

100

100

100

100

100

100

12.5

12.5

19-EN 20-EN

– 11 –

SMMS Slim Duct Type

Installation Manual

SMMS Slim Duct Type

Installation Manual

Mount an air filter to the air intake side; otherwise decrease of capacity may be caused.

<Under air intake> <Back air intake>

Remove the cover plate and then fix
it to the bottom surface.

Main unit

Air filter

Push

Remove the filter from the
main unit while pushing
down on the tabs.

Take out this cover plate.

 Connecting method of the duct

CAUTION

Incomplete heat insulation of the supply air flange and sealing may occur dewing resulted in falling of water drop.

Flange (locally procured)

Aluminum tape (locally procured)

Aluminum tape (locally procur ed)

Under surface

Cover a screw

Heat insulator with sticking materi al (100 mm-width locally procured)

Aluminum tape
(locally procured)

Air discharge side

Indoor unit

Air intake side

Connect a duct to the
inside of the flange

Heat insulator with sticking mater ial (100 mm - width locally procured )

Aluminum tape (locally procured)

Duct: Insulation
materia
(locally procured)

Flange

21-EN 22-EN

– 12 –

SMMS Slim Duct Type

Installation Manual

EN

SMMS Slim Duct Type

Installation Manual

 Fan characteristics

◆ No filter

AP007
AP009

AP012

AP015 AP018

0

10

20

30

40

50

60

300 400 500 600 700

Standard air volume: 540 m3/h

Upper limit of external

static pressure(50 Pa)

High (50 Pa)

High (35 Pa)

Low (50 Pa)

High (20 Pa)

Low (35 Pa)

Low (20 Pa)

High (10 Pa)

Low (10 Pa)

Upper limit of

external static

pressure(35 Pa)

Upper limit of
external static

pressure(20 Pa)

Upper limit of
external static

pressure(10 Pa)

Lower limit of
external static
pressure (50 Pa)

Lower limit of external
static pressure (35Pa)

Lower limit of external
static pressure (20Pa)

External static pressure (Pa)

Air Volume (m3/h)

0

10

20

30

40

50

60

300 400 500 600 700

Standard air volume: 600 m3/h

Upper limit of

external static

pressure(50Pa)

High (50Pa)

High (35Pa)

Low (50Pa)

High (20Pa)

Low (35Pa)

Low (20Pa)

High (10Pa)

Low (10Pa)

Upper limit of

external static

pressure

(35Pa)

Upper limit of

external static

pressure

(20Pa)

Upper limit of

external static

pressure(10Pa)

Lower limit of
external static
pressure (50Pa)

Lower limit of external
static pressure (35Pa)

Lower limit of
external static
pressure (20Pa)

External static pressure (Pa)

Air Volume (m3/h)

0

10

20

30

40

50

60

400 500 600 700 800

Standard air volume: 690 m3/h

Upper limit of external

static pressure(50Pa)

High (50Pa)

High (35Pa)

Low (50Pa)

High (20Pa)

Low (35Pa)

Low (20Pa)

High (10Pa)

Low (10Pa)

Upper limit of

external static

pressure(35Pa)

Upper limit of

external static

pressure(20Pa)

Upper limit of

external static

pressure(10Pa)

Lower limit of external
static pressure (50Pa)

Lower limit of external
static pressure (35Pa)

Lower limit of external
static pressure (20Pa)

External static pressure (Pa)

Air Volume (m3/h)

0

10

20

30

40

50

60

400 500 600 700 800 900

Standard air volume: 780 m3/h

Upper limit of

external static

pressure(50 Pa)

High (50 Pa)

High (35 Pa)

Low (50 Pa)

High (20 Pa)

Low (35 Pa)

Low (20 Pa)

High (10 Pa)

Low (10 Pa)

Upper limit of

external static

pressure(35 Pa)

Upper limit of

external static

pressure(20 Pa)

Upper limit of

external static

pressure(10 Pa)

Lower limit of
external static
pressure (50 Pa)

Lower limit of
external static
pressure (35 Pa)

Lower limit of
external static
pressure (20 Pa)

External static pressure (Pa)

Air Volume (m3/h)

◆ Filter attached

AP007
AP009

AP012

AP015 AP018

0

10

20

30

40

50

60

300 400 500 600 700

Standard air volume: 540 m3/h

Upper limit of

external static

pressure(50 Pa)

High (50 Pa)

Lower limit of externa
static pressure (50 Pa)

Low (50 Pa)

High (20 Pa)

Low (35 Pa)

Low (20 Pa)

High (10 Pa)

Low (10 Pa)

Upper limit of

external static

pressure(35 Pa)

Upper limit of

external static

pressure(20 Pa)

Upper limit of

external static

pressure(10Pa)

Lower limit of
external static
pressure (35 Pa)

Lower limit of
externa static
pressure (20 Pa)

Standard filter
pressure loss

External static pressure (Pa)

Air Volume (m3/h)

0

10

20

30

40

50

60

300 400 500 600 700

Standard air volume: 600 m3/h

Upper limit of external
static pressure(50 Pa)

High (50 Pa)

High (35

Pa)

Low (50 Pa)

High (20

Pa)

Low (35 Pa)

Low (20Pa)

High

(10Pa)

Low (10Pa)

Upper limit of

external static

pressure(35Pa)

Upper limit of

external static

pressure(20Pa)

Upper limit of external

static pressure(10Pa)

Lower limit of external
static pressure (50Pa)

Lower limit of external
static pressure (35Pa)

Lower limit of external
static pressure (20Pa)

External static pressure (Pa)

Air Volume (m3/h)

Standard filter
pressure loss

0

10

20

30

40

50

60

400 500 600 700 800

Standard air volume: 690 m3/h

Upper limit of external

static pressure(50Pa)

High (50Pa)

High (35Pa)

Low (50Pa)

High (20Pa)

Low (35Pa)

Low (20Pa)

High (10Pa)

Low (10Pa)

Upper limit of external

static pressure(35Pa)

Upper limit of

external static

pressure(20Pa)

Upper limit of

external static

pressure(10Pa)

Lower limit of external
static pressure (50Pa)

Lower limit of external
static pressure (35Pa)

Lower limit of external
static pressure (20Pa)

External static pressure (Pa)

Air Volume (m3/h)

Standard filter
pressure loss

0

10

20

30

40

50

60

400 500 600 700 800 900

Standard air volume: 780 m3/h

Upper limit of external
static pressure(50Pa)

High (50Pa)

High (35Pa)

Low (50Pa)

High (20Pa)

Low (35Pa)

Low (20Pa)

High (10Pa)

Low (10Pa)

Upper limit of external
static pressure(35Pa)

Upper limit of

external static

pressure(20Pa)

Upper limit of

external static

pressure(10Pa)

Lower limit of
external static
pressure (50Pa)

Lower limit of
external static
pressure (35Pa)

Lower limit of
external static
pressure (20Pa)

External static pressure (Pa)

Air Volume (m3/h)

Standard filter
pressure loss

23-EN 24-EN

– 13 –

SMMS Slim Duct Type

Installation Manual

SMMS Slim Duct Type

Installation Manual

7 Refrigerant Piping

CAUTION

When the refrigerant pipe is long, provide support
brackets at intervals of 2.5 m to 3 m to clamp the
refrigerant pipe. Otherwise, abnormal sound may be
generated.
Use the flare nut attached with the indoor unit or R410A
flare nut.

 Permissible piping length and

height difference

They vary depending on the outdoor unit. For details,
refer to the Installation Manual attached to the outdoor
unit.

 Pipe size

 Connecting refrigerant piping

Flaring

1. Cut the pipe with a pipe cutter.

Remove burrs completely. (Remaining burrs may
cause gas leakage.)

2. Insert a flare nut into the pipe, and flare the pipe.

Use the flare nut provided with the unit or the one
used for the R410A refrigerant. The flaring
dimensions for R410A are different from the ones
used for the conventional R22 refrigerant. A new
flare tool manufactured for use with the R410A
refrigerant is recommended, but the conventional
tool can still be used if the projection margin of the
copper pipe is adjusted to be as shown in the
following table.

Projection margin in flaring: B (Unit: mm)

Flaring diameter size: A (Unit: mm)

* In case of flaring for R410A with the conventional

flare tool, pull it out approx. 0.5 mm more than that
for R22 to adjust to the specified flare size. The
copper pipe gauge is useful for adjusting projection
margin size.

• The sealed gas was sealed at the atmospheric
pressure so when the flare nut is removed, there will
no “whooshing” sound: This is normal and is not
indicative of trouble.

• Use two wrenches to connect the indoor unit pipe.

Model MMD-

Pipe size (mm)

Gas side Liquid side

AP007 to AP012 Ø9.5 Ø6.4

AP015 to AP018 Ø12.7 Ø6.4

Outer dia. of
copper pipe

R410A tool used

Conventional

tool used

6.4, 9.5
0 to 0.5 1.0 to 1.5

12.7, 15.9

Outer dia. of copper pipe A

+0
–0.4

6.4 9.1

9.5 13.2

12.7 16.6

15.9 19.7

Work using double spanner

• Use the tightening torque levels as listed in the table
below.

• Tightening torque of flare pipe connections.
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 and outdoor units of the
specified tightening torque.
Incorrect connections may cause not only a gas leak,
but also a trouble of the refrigeration cycle.

CAUTION

Tightening with an excessive torque may crack the nut
depending on installation conditions.

 Airtight test / Air purge, etc.

For air tightness test, vacuum drying and adding
refrigerant, refer to the Installation Manual attached to
the outdoor unit.

CAUTION

Do not supply power to the indoor unit until the airtight
test and vacuuming are completed. (If the indoor unit is
powered on, the pulse motor valve is fully closed, which
extends the time for vacuuming.)

 Open the valve fully

Open the valve of the outdoor unit fully.

 Heat insulation process

Apply heat insulation for the pipes separately at liquid
side and gas side.

• For the heat insulation to the pipes at gas side, use
the material with heat-resisting temperature 120 °C
or higher.

• To use the attached heat insulation pipe, apply the
heat insulation to the pipe connecting section of the
indoor unit securely without gap.

REQUIREMENT

• Apply the heat insulation to the pipe connecting
section of the indoor unit securely up to the root
without exposure of the pipe. (The pipe ex posed to the
outside causes water leak.)

• Wrap heat insulator with its slits facing up (ceiling
side).

Outer dia. of connecting

pipe (mm)

Tightening torque (N•m)

6.4 14 to 18 (1.4 to 1.8 kgf•m)

9.5 33 to 42 (3.3 to 4.2 kgf•m)

12.7 50 to 62 (5.0 to 6.2 kgf•m)

15.9 63 to 77 (6.3 to 7.7 kgf•m)

Indoor unit

Union

Heat insulation pipe
(Accessory)

Flare nut

Heat insulator of
the pipe

25-EN 26-EN

SMMS Slim Duct Type

Installation Manual

EN

SMMS Slim Duct Type

Installation Manual

– 14 –

8 Electrical Connection

WARNING

• Use the specified wires for wiring connect the

terminals. Securely fix them to prevent external
forces applied to the terminals from affecting the
terminals.

Incomplete connection or fixation may cause a fire or
other trouble.

• Connect earth wire. (grounding work)
Incomplete grounding cause an electric shock.
Do not connect earth wires to gas pipes, water pipes,
lightning conductor or telephone earth wires.

• Appliance shall be installed in accordance with

national wiring regulations.

Capacity shortage of power circuit or incomplete
installation may cause an electric shock or a fire.

CAUTION

• If incorrect / incomplete wiring is carried out, it will
cause an electrical fire or smoke.

• Install an earth leakage breaker that is not tripped by
shock waves.
If an earth leakage breaker is not installed, an electric
shock may be caused.

• Use the cord clamps attached to the product.

• Do not damage or scratch the conductive core and
inner insulator of power and inter-connecting wires
when peeling them.

• Use the power cord and Inter-connecting wire of
specified thickness, type, and protective devices
required.

• Do not connect 220 V – 240 V power to the terminal
blocks ( , , , ) for control wiring. (Otherwise,
the system will fail.)

• Do not damage or scratch the conductive core and
inner insulator of power and inter-connecting wires
when peeling them.

• Perform the electric wiring so that it does not come to
contact with the high-temperature part of the pipe.
The coating may melt resulting in an accident.

REQUIREMENT

• For power supply wiring, strictly conform to the Local
Regulation in each country.

• For wiring of power supply of the outdoor units, follow
the Installation Manual of each outdoor unit.

• Perform the electric wiring so that it does not come to
contact with the high-temperature part of the pipe.The
coating may melt resulting in an accident.

• After connecting wires to the terminal blocks, provide
a trap and fix wires with the cord clamp.

• Run the refrigerant piping line and control wiring line in
the same line.

• Do not turn on the power of the indoor unit until
vacuuming of the refrigerant pipes completes.

 Power supply wire and

communication wires
specifications

Power supply wire and communication wires are
procured locally.
For the power supply specifications, follow to the table
below. If capacity is little, it is dangerous because
overheat or burnout may be caused.
For specifications of the power capacity of the outdoor
unit and the power supply wires, refer to the Installation
Manual attached to the outdoor unit.

Indoor unit power supply

• For the power supply of the indoor unit, prepare the
exclusive power supply separated from that of the
outdoor unit.

• Arrange the power supply, circuit breaker, and main
switch of the indoor unit connected to the same
outdoor unit so that they are commonly used.

• Power supply wire specification: Cable 3-core 2.5
mm², in conformity with Design 60245 IEC 57.

U

1

U

2

A

B

▼ Power supply

Control wiring, Central controller wiring

• 2-core with polarity wires are used for the Control wiring between indoor unit and outdoor unit and Central
controller wiring.

• To prevent noise trouble, use 2-core shield wire.

• The length of the communication line means the total length of the inter-unit wire length between indoor and
outdoor units added with the central control system wire length.

▼ Communication line

Remote controller wiring

• 2-core with non-polarity wire is used for wiring of the remote controller wiring and group remote controllers wiring.

CAUTION

The remote controller wire (Communication line) and AC 220 – 240 V wires cannot be parallel to contact
each other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the control
system due to noise or other factor.

Power supply

220 V – 240 V ~, 50 Hz

220 V ~, 60 Hz

Power supply switch / circuit breaker or power supply wiring / fuse rating for indoor units should be selected by the
accumulated total current values of the indoor units.

Power supply wiring Below 50 m 2.5 mm

2

Control wiring between indoor units, and
outdoor unit (2-core shield wire)

Wire size

(Up to 1000 m) 1.25 mm²

(Up to 2000 m) 2.0 mm²

Central control line wiring (2-core shield
wire)

Wire size

(Up to 1000 m) 1.25 mm²

(Up to 2000 m) 2.0 mm²

Remote controller wiring, remote controller inter-unit
wiring

Wire size: 0.5 mm² to 2.0 mm²

Total wire length of remote controller wiring and remote
controller inter-unit wiring = L + L1 + L2 + … Ln

In case of wired type only Up to 500 m

In case of wireless type

included

Up to 400 m

Total wire length of remote controller inter-unit wiring = L1 + L2 + … Ln Up to 200 m

L1

L

L2 Ln

Indoor unit

Remote controller inter-unit wiring

Indoor unit Indoor unit Indoor unit

Remote

controller

(Max. 8 units)

Remote
controller
wiring

27-EN 28-EN

– 15 –

SMMS Slim Duct Type

Installation Manual

SMMS Slim Duct Type

Installation Manual

 Wiring between indoor and outdoor units

NOTE

An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically the
header unit.

▼ Wiring example

U1 U2

U1 U2 U3 U4L1 L2 L3 N U5 U6

LN AB

AB

U1 U2 U3 U4L1 L2 L3 N U5 U6

U1 U2LN AB

AB

U1 U2LN AB

AB

U1 U2LN AB

Outdoor Power supply
380 V - 415 V ~, 50 Hz
380 V ~, 60 Hz

Circuit breaker,
Power switch

Remote controller

Indoor unit

Outdoor Power supply
380 V - 415 V ~, 50 Hz
380 V ~, 60 Hz

Remote controller Remote controller

Indoor unit Indoor unit Indoor unit

Circuit breaker Circuit breaker

Header outdoor
unit

Follower outdoor
unit

Control wiring between outdoor units

Control wiring between indoor and outdoor units

Control wiring between indoor units

Indoor power supply
220 V - 240 V ~, 50 Hz
220 V ~, 60 Hz

Earth Earth Earth Earth

Group control

Pull boxPull boxPull box

Earth
terminal

Earth
terminal

 Wire connection

REQUIREMENT

• Connect the wires matching the terminal numbers. Incorrect connection causes a trouble.

• Pass the wires through the bushing of wire connection holes of the indoor unit.

• Keep a margin (Approx. 100 mm) on a wire to hang down the electrical control box at servicing or other purpose.

• The low-voltage circuit is provided for the remote controller. (Do not connect the high-voltage circuit)

• Before remove the electrical control box cover, remove the cover plate and air filter.

• Remove the cover of the electrical control box by taking off the mounting screws (2 positions) and pushing the
hooking section. (The cover of the electrical control box remains hanged to the hinge.)

• Tighten the screws of the terminal block, and fix the wires with cord clamp attached to the electrical control box.
(Do not apply tension to the connecting section of the terminal block.)

• Set a loop for the connecting wire of the storing part of the indoor unit electric parts; otherwise the electrical
control box cannot be drawn out in service time.

• Mount the cover of the electrical control box without pinching wires.

R(L)

S(N)

BA

S(N)R(L)

Air filter

Screw

(2 positions)

Cover plate

Remote controller wire

Cable cramp

Control wire

Electrical
control box

Electrical

control box

cover

Power supply cord

R

(L)S(N)

10

10

30

70

Earth wire

Power supply wire

29-EN 30-EN

SMMS Slim Duct Type

Installation Manual

EN

SMMS Slim Duct Type

Installation Manual

– 16 –

 Remote controller wiring

Strip off approx. 9 mm the wire to be connected.

▼ Wiring diagram

 Address setup

Set up the addresses as per the Installation Manual supplied with the outdoor unit.

A
B

A
B

Terminal block

Remote controller unit

Terminal block for remote
controller wiring of indoor unit

Remote controller wire
(Locally procured)

9 Applicable Controls

REQUIREMENT

When the air conditioner is used for the first time, it will
take some moments after the power has been turned on
before the remote controller becomes available for
operations: This is normal and is not indicative of trouble.

• Concerning the automatic addresses (The automatic
addresses are set up by performing operations on the
outdoor interface circuit board.)
While the automatic addresses are being set up, no
remote controller operations can be performed. Setup
takes up to 10 minutes (usually about 5 minutes).

• When the power is turned on after automatic address
setup
It takes up to 10 minutes (usually about 3 minutes) for
the outdoor unit to start operating after the power has
been turned on.

Before the air conditioner was shipped from the factory,
all units are set to [STANDARD] (factory default). If
necessary, change the indoor unit settings.
The settings are changed by operating the wired remote
controller.
* The settings cannot be changed using only a wireless

remote controller, simple remote controller or group
control remote controller by itself so install a wired
remote controller separately as well.

 Basic procedure for changing

settings

Change the settings while the air conditioner is not
working. (Stop the air conditioner before making

settings.)

CAUTION

Set only the CODE No. shown in the following table: Do
NOT set any other CODE No.
If a CODE No. not listed is set, it may not be possible to
operate the air conditioner or other trouble with the
product may result.
* The displays appearing during the setting process

differ from the ones for previous remote controllers
(AMT21E, AMT31E). (There are more CODE No.)

1 Push and hold button and “TEMP.”

button simultaneously for at least 4
seconds. After a while, the display flashes
as shown in the figure. Confirm that the
CODE No. is [01].

If the CODE No. is not [01], push button to clear
the display content, and repeat the procedure from
the beginning. (No operation of the remote
controller is accepted for a while after button is
pushed.)
(While air conditioners are operated under the
group control, “ALL” is displayed first. When

is pushed, the indoor unit number

displayed following “ALL” is the header unit.)

1

6

1
3

2

5

4

(* Display content varies with the indoor unit
model.)

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2 Each time button is pushed, indoor

unit numbers in the control group change
cyclically. Select the indoor unit to change
settings for.

The fan of the selected unit runs and the louvers
start swinging. The indoor unit for change settings
can be confirmed.

3 Specify CODE No. [ ] wi th “TEMP.” /

buttons.

4 Select SET DATA [ ] with “TIME” /

buttons.

5 Push button. When the display changes

from flashing to lit, the setup is completed.

• To change settings of another indoor unit,

repeat from Procedure 2.

• To change other settings of the selected indoor

unit, repeat from Procedure 3.

Use button to clear the settings. To make
settings after button was pushed, repeat from
Procedure 2.

6 When settings have been completed, push

button to determine the settings.

When button is pushed, flashes and
then the display content disappears and the air
conditioner enters the normal stop mode.
(While is flashing, no operation of the
remote controller is accepted.)

 External static pressure settings

Set up a tap change based upon the external static pressure of the duct to be connected.
To set up a tap change, follow to the basic operation procedure (1 → 2 → 3 → 4 → 5 → 6).

• Specify [5d] to the CODE No. in procedure 3.

• For the SET DATA of procedure 4, select a SET DATA of the external static pressure to be set up from the

following table.

<Change on wired remote controller>

With a remote controller-less system (group control)

Besides the switching method using the wired remote controller as a way to establish the external static pressure
switching is also possible by changing over the jumper block settings on the indoor P.C. board as shown in the
following table.
* However, once these settings are changed, it is necessary to reset the SET DATA to 0000 that placing the

jumper block back to the factory default position and rewriting the SET DATA back to 0000 with wired remote
controller (sold separately).

• Change over the jumper blocks on the indoor P.C. board, and select the desired setting.

Jumper block positions (CN112, CN111 and CN110 from the left)

SET DATA External static pressure

0000 10 Pa Standard (Factory default)

0001 20 Pa High static pressure 1

0003 35 Pa High static pressure 2

0006 50 Pa High static pressure 3

Jumper block

position

SET DATA 0000 0001 0003 0006

External static

pressure

10 Pa 20 Pa 35 Pa 50 Pa

Standard

(Factory default)

High static Pressure 1 High static Pressure 2 High static Pressure 3

Short

Open

CN112 CN111 CN110

CN112 CN111 CN110

CN112 CN111 CN110

CN112 CN111 CN110

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 Filter sign setting

According to the installation condition, the filter sign
term (Notification of filter cleaning) can be changed.
Follow to the basic operation procedure
(1 → 2 → 3 → 4 → 5 → 6).

• For the CODE No. in Procedure 3, specify [01].

• For the [SET DATA] in Procedure 4, select the SET

DATA of filter sign term from the following table.

 To secure better effect of

heating

When it is difficult to obtain satisfactory heating due to
installation place of the indoor unit or structure of the
room, the detection temperature of heating can be
raised. Also use a circulator or other machinery to
circulate heat air near the ceiling.
Follow to the basic operation procedure
(1 → 2 → 3 → 4 → 5 → 6).

• For the CODE No. in Procedure 3, specify [06].

• For the set data in Procedure 4, select the SET

DATA of shift value of detection temperature to be
set up from the following table.

 Remote controller sensor

The temperature sensor of the indoor unit senses room
temperature usually. Set the remote controller sensor
to sense the temperature around the remote controller.
Select items following the basic operation procedure
(1 → 2 → 3 → 4 → 5 → 6 ).

• Specify [32] for the CODE No. in Procedure 3.

• Select the following data for the SET DATA in

Procedure 4.

When flashes, the remote controller sensor is
defective.
Select the SET DATA [0000] (not used) or replace the
remote controller.

 Group control

In a group control, a remote controller can control up to
maximum 8 units.

• The wired remote controller only can control a group
control. The wireless remote controller is unavailable
for this control.

• For wiring procedure and wires of the individual line
(Identical refrigerant line) system, refer to “Electrical
Connection” in this Manual.

• Wiring between indoor units in a group is performed
in the following procedure.

• Connect the indoor units by connecting the remote
controller wires from the remote controller terminal
blocks (A, B) of the indoor unit connected with a
remote controller to the remote controller terminal
blocks (A, B) of the other indoor unit. (Non-polarity)

• For address setup, refer to the Installation Manual
attached to the outdoor unit.

SET DATA Filter sign term

0000 None

0001 150 H

0002

2500 H

(Factory default)

0003 5000 H

0004 10000 H

SET DATA Detection temperature shift value

0000 No shift

0001 +1 °C

0002

+2 °C

(Factory default)

0003 +3 °C

0004 +4 °C

0005 +5 °C

0006 +6 °C

SET DATA 0000 0001

Remote controller
sensor

Not used

(Factory default)

Used

10Test Run

 Before test run

• Before turning on the power supply, carry out the
following procedure.

1) By using 500 V-megger, check that resistance
of 1 MΩ or more exists between the terminal
block L to N and the earth (grounding).
If resistance of less than 1 MΩ is detected, do
not run the unit.

2) Check the valve of the outdoor unit being
opened fully.

• To protect the compressor at activation time, leave
power-ON for 12 hours or more before operating.

• Do not press the electromagnetic contactor to
forcibly perform a test run. (This is very dangerous
because the protective device does not work.)

• Before starting a test run, set addresses by following
the Installation Manual supplied with the outdoor
unit.

 Execute a test run

• When a fan operation is to be performed for an
individual indoor unit, turn off the power, short CN72
on the circuit board, and then turn the power back
on. (First set the operating mode to “fan,” and then
operate.) When the test run has been performed
using this method, do NOT forget to release the
shorting of CN72 after the test run is completed.

Operate the unit with the wired remote controller as
usual.
For the procedure of the operation, refer to the
attached Owner’s Manual to the outdoor unit.
A forced test run can be executed in the following
procedure even if the operation stops by thermostat­OFF.
In order to prevent a serial operation, the forced test
run is released after 60 minutes have passed and
returns to the usual operation.

CAUTION

Do not use the forced test run for cases other than the
test run because it applies an excessive load to the
devices.

Wired remote controller

1 Push button for 4 seconds or more.

[TEST] is displayed on the display part and
the selection of mode in the test mode is
permitted.

2 Push button.
3 Select the operation mode with

button, [ Cool] or [ Heat].

• Do not run the air conditioner in a mode other
than [ Cool] or [ Heat].

• The temperature controlling function does not
work during test run.

• The detection of error is performed as usual.

4 After the test run, push button to

stop a test run.

(Display part is same as procedure 1.)

5 Push check button to cancel (release

from) the test run mode.

([TEST] disappears on the display and the status
returns to a normal.)

2, 4
3

1,5

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Wireless remote controller

1 Remove a small screw which fixes the nameplate of the receiver unit.

Remove the nameplate of the sensor section by inserting a flat-blade screwdriver into the notch at the bottom
of the plate, and set the Dip switch to [TEST RUN ON].

2 Execute a test operation with ON/OFF button on the wireless remote controller.

• , , and LED flash during test operation.

• Under status of [TEST RUN ON], the temperature adjustment from the wireless remote controller is invalid.
Do not use this method in the operation other than test operation because the equipment is damaged.

3 Use either Cool or Heat operation mode for a test operation.

* The outdoor unit does not operate approx. 3 minutes after power-ON and operation stop.

4 After the test operation finished, stop the air conditioner from the wireless remote controller, and

return Dip switch of the receiver section as before.

(A 60-minutes timer clearing function is attached to the receiver section in order to prevent a continuous test
operation.)

Small
screw

Nameplate

Notch

M4 × 25 screw
(2 pieces)

Spacer

Receiver unit

11Maintenance

<Daily maintenance>

▼ Cleaning of air filter

If is displayed on the remote controller, maintain the air filter.

1 Push the button to stop the operation, then turn off the circuit breaker.
2 Take out the air filter.

Push the tabs (Forward direction as shown in the figure) of the fir filter, and then pull out it to take out the air
filter.

3 Cleaning with water or vacuum cleaner

• If dirt is heavy, clean the air filter by tepid water with neutral detergent or water.

• After cleaning with water, dry the air filter sufficiently in a shade place.

6

1,5

Air filter

Main unit

Push

Remove the filter from the
main unit while pushing
down on the tabs.

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4 Mount the air filter.

Attach the filter to the main unit while pushing the tabs

5 Turn on the circuit breaker, then push the button on the remote controller to start the

operation.

6 After cleaning, push .

display disappears.

CAUTION

• Do not start the air conditioner while leaving air filter removed.

• Push the filter reset button. ( indication will be turn off.)

▼ Periodic Maintenance

For environmental conservation, it is strongly recommended that the indoor and outdoor units of the air conditioner
in use be cleaned and maintained regularly to ensure efficient operation of the air conditioner.
When the air conditioner is operated for a long time, periodic maintenance (once a year) is recommended.
Furthermore, regularly check the outdoor unit for rust and scratches, and remove them or apply rustproof
treatment, if necessary.
As a general rule, when an indoor unit is operated for 8 hours or more daily, clean the indoor unit and outdoor unit
at least once every 3 months. Ask a professional for this cleaning / maintenance work.
Such maintenance can extend the life of the product though it involves the owner’s expense.
Failure to clean the indoor and outdoor units regularly will result in poor performance, freezing, water leakage, and
even compressor failure.

Inspection before maintenance

Following inspection must be carried out by a qualified installer or qualified service person.

▼ Maintenance List

Parts Inspection method

Heat exchanger

Access from inspection opening and remove the access panel. Examine the heat exchanger if there
is any clogging or damages.

Fan motor Access from inspection opening and check if any abnormal noise can be heard.

Fan

Access from inspection opening and remove the access panel. Examine the fan if there are any
waggles, damages or adhesive dust.

Filter Go to installed location and check if there are any stains or breaks on the filter.

Drain pan

Access from inspection opening and remove the access panel. Check if there is any clogging or drain
water is polluted.

Part Unit Check (visual / auditory) Maintenance

Heat exchanger Indoor / outdoor Dust / dirt clogging, scratches

Wash the heat exchanger when it is
clogged.

Fan motor Indoor / outdoor Sound

Take appropriate measures when
abnormal sound is generated.

Filter Indoor Dust / dirt, breakage

• Wash the filter with water when it is
contaminated.

• Replace it when it is damaged.

Fan Indoor

• Vibration, balance

• Dust / dirt, appearance

• Replace the fan when vibration or
balance is terrible.

• Brush or wash the fan when it is
contaminated.

Air inlet / outlet grilles Indoor / outdoor Dust / dirt, scratches

Fix or replace them when they are
deformed or damaged.

Drain pan Indoor

Dust / dirt clogging, drain
contamination

Clean the drain pan and check the
downward slope for smooth drainage.

Ornamental panel,
louvres

Indoor Dust / dirt, scratches

Wash them when they are contaminated
or apply repair coating.

Exterior Outdoor

• Rust, peeling of insulator

• Peeling / lift of coat

Apply repair coating.

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12Troubleshooting

 Confirmation and check

When an error occurred in the air conditioner, an error
code and indoor UNIT No. appear on the display part
of the remote controller.
The error code is only displayed during the operation.
If the display disappears, operate the air conditioner
according to the following “Confirmation of error log” for
confirmation.

 Confirmation of error log

When an error occurred on the air conditioner, the error
log can be confirmed with the following procedure.
(The error log is stored in memory up to 4 errors.)
The log can be confirmed from both operating status
and stop status.

1 When and buttons are pushed

simultaneously for 4 seconds or more, the
following display appears.

If is displayed, the mode enters in the error log
mode.

•[01: Order of error log] is displayed in CODE
No..

• [Error code] is displayed in CHECK.

• [Indoor unit address in which an error occurred]
is displayed in Unit No..

2 Every pushing of button used to set

temperature, the error log stored in memory
is displayed in order.

The numbers in CODE No. indicate CODE No.
[01] (latest) → [04] (oldest).

REQUIREMENT

Do not push button because all the error log of the
indoor unit will be deleted.

3 After confirmation, push button to return

to the usual display.

Error code Indoor UNIT No. in

which an error occurred

3

2

1

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Check method

On the wired remote controller, central control remote controller and the interface P.C. board of the outdoor unit (I/F), a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C. board) to display the operation
is provided. Therefore the operation status can be known. Using this self-diagnosis function, a trouble or position with error of the air conditioner can be found as shown in the table below.

Check code list

The following list shows each check code. Find the check contents from the list according to part to be checked.

• In case of check from indoor remote controller: See “Wired remote controller display” in the list.

• In case of check from outdoor unit: See “Outdoor unit 7-segment display” in the list.

• In case of check from AI-NET central control remote controller: See “AI-NET central control display” in the list.

• In case of check from indoor unit with a wireless remote controller: See “Sensor block display of receiving unit” in the list.
: Lighting, : Flashing, : Goes off

AI-NET: Artificial Intelligence

IPDU: Intelligent Power Drive Unit
ALT: Flashing is alternately when there are two flashing LED.
SIM: Simultaneous flashing when there are two flashing LED.

Check code Wireless remote controller

Check code name Judging device

Wired remote

controller display

Outdoor unit 7-segment display

AI-NET central

control display

Sensor block display of receiving unit

Auxiliary code Operation Timer Ready Flash

E01 — — —

Communication error between indoor unit and remote controller (Detected at
remote controller side)

Remote controller

E02 — — — Remote controller transmission error Remote controller

E03 — — 97

Communication error between indoor unit and remote controller (Detected at
indoor unit side)

Indoor unit

E04 — — 04

Communication circuit error between indoor / outdoor unit (Detected at indoor
unit side)

Indoor unit

E06 E06

No. of indoor units in which sensor has been
normally received

04 Decrease of No. of indoor units I/F

—E07 — —

Communication circuit error between indoor / outdoor unit (Detected at
outdoor unit side)

I/F

E08 E08 Duplicated indoor unit addresses 96 Duplicated indoor unit addresses Indoor unit • I/F

E09 — — 99 Duplicated master remote controllers Remote controller

E10 — — CF Communication error between indoor unit MC Indoor unit

E12 E12

01:Indoor / Outdoor units communication
02:Outdoor / Outdoor units communication

42 Automatic address start error I/F

E15 E15 — 42 No indoor unit during automatic addressing I/F

E16 E16

00:Capacity over
01 ~:No. of connected units

89 Capacity over / No. of connected indoor units I/F

E18 — — 97, 99 Communication error between header and follower units Indoor unit Indoor unit

E19 E19

00:No header
02:Two or more header units

96 Outdoor header units quantity error I/F

E20 E20

01:Outdoor unit of other line connected
02:Indoor unit of other line connected

42 Other line connected during automatic address I/F

E21 E21

02:No header unit
00:Multiple number of header units

42 Error in number of heat storage master units I/F

E22 E22 — 42 Reduction in number of heat storage units I/F

E23 E23 — 15

Sending error in communication between outdoor units
Error in number of heat storage units (trouble with reception)

I/F

E25 E25 — 15 Duplicated follower outdoor addresses I/F

E26 E26

No. of outdoor units which received signal
normally

15 Decrease of No. of connected outdoor units I/F

E28 E28 Detected outdoor unit number d2 Follower outdoor unit error I/F

E31 E31 Number of IPDU (*1) CF IPDU communication error I/F

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F01 — — 0F ALT Indoor unit TCJ sensor error Indoor unit

F02 — — 0d ALT Indoor unit TC2 sensor error Indoor unit

F03 — — 93 ALT Indoor unit TC1 sensor error Indoor unit

F04 F04 — 19 ALT TD1 sensor error I/F

F05 F05 — A1 ALT TD2 sensor error I/F

F06 F06

01:TE1 sensor
02:TE2 sensor

18 ALT

TE1 sensor error
TE2 sensor error

I/F

F07 F07 — 18 ALT TL sensor error I/F

F08 F08 — 1b ALT TO sensor error I/F

F10 — — OC ALT Indoor unit TA sensor error Indoor unit

F12 F12 — A2 ALT TS1 sensor error I/F

F13 F13

01:Comp. 1 side
02:Comp. 2 side
03:Comp. 3 side

43 ALT TH sensor error IPDU

F15 F15 — 18 ALT Outdoor unit temp. sensor miscabling (TE, TL) I/F

F16 F16 — 43 ALT Outdoor unit pressure sensor miscabling (Pd, Ps) I/F

F22 F22 — B2 ALT TD3 sensor error I/F

F23 F23 — 43 ALT Ps sensor error I/F

F24 F24 — 43 ALT Pd sensor error I/F

F29 — — 12 SIM Indoor unit other error Indoor unit

F31 F31 — 1C SIM Indoor unit EEPROM error I/F

H01 H01

01:Comp. 1 side
02:Comp. 2 side
03:Comp. 3 side

IF Compressor break down IPDU

H02 H02

01:Comp. 1 side
02:Comp. 2 side
03:Comp. 3 side

1d Compressor trouble (lock) IPDU

H03 H03

01:Comp. 1 side
02:Comp. 2 side
03:Comp. 3 side

17 Current detect circuit system error IPDU

H04 H04 — 44 Comp. 1 case thermo operation I/F

H05 H05 — — TD1 sensor miswiring I/F

H06 H06 — 20 Low pressure protective operation I/F

H07 H07 — d7 Oil level down detective protection I/F

H08 H08

01:TK1 sensor error
02:TK2 sensor error
03:TK3 sensor error
04:TK4 sensor error
05:TK5 sensor error

d4 Oil level detective temp sensor error I/F

H14 H14 — 44 Comp. 2 case thermo operation I/F

H15 H15 — — TD2 sensor miswiring I/F

H16 H16

01:TK1 oil circuit system error
02:TK2 oil circuit system error
03:TK3 oil circuit system error
04:TK4 oil circuit system error
05:TK5 oil circuit system error

d7 Oil level detective circuit error I/F

H25 H25 — — TD3 sensor miswiring I/F

L03 — — 96 SIM Indoor unit centre unit duplicated Indoor unit

Check code Wireless remote controller

Check code name Judging device

Wired remote

controller display

Outdoor unit 7-segment display

AI-NET central

control display

Sensor block display of receiving unit

Auxiliary code Operation Timer Ready Flash

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L04 L04 — 96 SIM Outdoor unit line address duplicated I/F

L05 — — 96 SIM Duplicated indoor units with priority (Displayed in indoor unit with priority) I/F

L06 L06 No. of indoor units with priority 96 SIM

Duplicated indoor units with priority (Displayed in unit other than indoor unit
with priority)

I/F

L07 — — 99 SIM Group line in individual indoor unit Indoor unit

L08 L08 — 99 SIM Indoor unit group / Address unset Indoor unit, I/F

L09 — — 46 SIM Indoor unit capacity unset Indoor unit

L10 L10 — 88 SIM Outdoor unit capacity unset I/F

L17 — — 46 SIM Outdoor unit type mismatch error I/F

L20 — — 98 SIM Duplicated central control addresses AI-NET, Indoor unit

L26 L26 Number of heat storage units connected 46 SIM Too many heat storage units connected I/F

L27 L27 Number of heat storage units connected 46 SIM Error in number of heat storage units connected I/F

L28 L28 — 46 SIM Too many outdoor units connected I/F

L29 L29 Number of IPDU (*1) CF SIM No. of IPDU error I/F

L30 L30 Detected indoor unit address b6 SIM Indoor unit outside interlock Indoor unit

— L31 — — — Extended I/C error I/F

P01 — — 11 ALT Indoor fan motor error Indoor unit

P03 P03 — 1E ALT Discharge temp. TD1 error I/F

P04 P04

01:Comp. 1 side
02:Comp. 2 side
03:Comp. 3 side

21 ALT High-pressure SW system operation IPDU

P05 P05

00:
01:Comp. 1 side
02:Comp. 2 side
03:Comp. 3 side

AF ALT

Phase missing detection / Power failure detection
Inverter DC voltage error (comp.)
Inverter DC voltage error (comp.)
Inverter DC voltage error (comp.)

I/F

P07 P07

01:Comp. 1 side
02:Comp. 2 side
03:Comp. 3 side

IC ALT Heat sink overheat error IPDU, I/F

P09 P09 Detected heat storage address 47 ALT No heat storage unit water error Heat storage unit

P10 P10 Detected indoor unit address Ob ALT Indoor unit overflow error Indoor unit

P12 — — 11 ALT Indoor unit fan motor error Indoor unit

P13 P13 — 47 ALT Outdoor liquid back detection error I/F

P15 P15

01:TS condition
02:TD condition

AE ALT Gas leak detection I/F

P17 P17 — bb ALT Discharge temp. TD2 error I/F

P18 P18 — E2 ALT Discharge temp. TD3 error I/F

P19 P19 Detected outdoor unit number O8 ALT 4-way valve inverse error I/F

P20 P20 — 22 ALT High-pressure protective operation I/F

P22 P22

0*:IGBT circuit
1*:Position detective circuit error
3*:Motor lock error
4*:Motor current detection
C*:TH sensor error
D*:TH sensor error
E*:Inverter DC voltage error (outdoor unit

fan)

1A ALT

Outdoor unit fan IPDU error
Note: Ignore 0 to F displayed in “*” position.

IPDU

P26 P26

01:Comp. 1 side
02:Comp. 2 side
03:Comp. 3 side

14 ALT G-TR short protection error IPDU

Check code Wireless remote controller

Check code name Judging device

Wired remote

controller display

Outdoor unit 7-segment display

AI-NET central

control display

Sensor block display of receiving unit

Auxiliary code Operation Timer Ready Flash

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Error detected by TCC-LINK central control device

TCC-LINK: TOSHIBA Carrier Communication Link.

P29 P29

01:Comp. 1 side
02:Comp. 2 side
03:Comp. 3 side

16 ALT Comp. position detective circuit system error IPDU

P31 — — 47 ALT

Other indoor unit error
(Group follower indoor unit error)

Indoor unit

— — — b7 By alarm device ALT Error in indoor unit group AI-NET

— — — 97 — AI-NET communication system error AI-NET

— — — 99 — Duplicated network adapters AI-NET

*1 Number of IPDU

01: Comp. 1
02: Comp. 2
03: Comp. 1 + Comp. 2
04: Comp. 3

05: Comp. 1 + Comp. 3
06: Comp. 2 + Comp. 3
07: Comp. 1 + Comp. 2 + Comp. 3
08: Fan

09: Comp. 1 + Fan
0A: Comp. 2 + Fan
0B: Comp. 1 + Comp. 2 + Fan
0C: Comp. 3 + Fan

0D: Comp. 1 + Comp. 3 + Fan
0E: Comp. 2 + Comp. 3 + Fan
0F: Comp. 1 + Comp. 2 + Comp. 3 + Fan

Check code Wireless remote controller

Check code name Judging device

Central control device

indication

Outdoor unit 7-segment display

AI-NET central

control display

Sensor block display of receiving unit

Auxiliary code Operation Timer Ready Flash

C05 — — — — Sending error in TCC-LINK central control device TCC-LINK

C06 — — — — Receiving error in TCC-LINK central control device TCC-LINK

C12 — — — — Batch alarm of general-purpose equipment control interface

General-purpose equipment,

I/F

P30

Differs according to error contents of unit with occurrence of alarm Group control follower unit error

TCC-LINK

— — (L20 is displayed.) Decrease of No. of indoor units

Check code Wireless remote controller

Check code name Judging device

Wired remote

controller display

Outdoor unit 7-segment display

AI-NET central

control display

Sensor block display of receiving unit

Auxiliary code Operation Timer Ready Flash

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13Specifications

* Under 70 dBA

Model

Sound power level (dBA)

Weight (kg) Main unit

Cooling Heating

MMD-AP0074SPH-E * * 22

MMD-AP0094SPH-E * * 22

MMD-AP0124SPH-E * * 22

MMD-AP0154SPH-E * * 23

MMD-AP0184SPH-E * * 23

Declaration of Conformity

NOTE

This declaration becomes invalid if technical or operational modifications are introduced without the manufacturer’s
consent.

Manufacturer: Toshiba Carrier Corporation

336 Tadehara, Fuji-shi, Shizuoka-ken 416-8521 JAPAN

Authorized
Representative / TCF
holder:

Nick Ball
Toshiba EMEA Engineering Director
Toshiba Carrier UK Ltd.
Porsham Close, Belliver Industrial Estate,
PLYMOUTH, Devon, PL6 7DB.
United Kingdom

Hereby declares that the machinery described below:

Generic Denomination: Air Conditioner

Model / type: MMD-AP0074SPH-E, MMD-AP0094SPH-E, MMD-AP0124SPH-E,

MMD-AP0154SPH-E, MMD-AP0184SPH-E

Commercial name: Super Modular Multi System Air Conditioner

Super Heat Recovery Multi System Air Conditioner
Mini-Super Modular Multi System Air Conditioner (MiNi-SMMS series)

Complies with the provisions of the “Machinery” Directive (Directive 2006/42/EC) and the regulations transposing
into national law

“Declaration of incorporation of partly completed machinery”

Must not be put into service until the final machinery into which it is to be incorporated has been declared in
conformity with the provisions of this Directive, where appropriate.

Complies with the provisions of the following harmonized standard:

EN 378-2: 2008+A1: 2009

51-EN 52-EN

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SMMS Slim Duct Type

Installation Manual

SMMS Slim Duct Type

Installation Manual

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.

The concentration limit of R410A which is used in multi air conditioners is 0.3 kg/m

3

.

▼ 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.

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.

▼ NOTE 2

The standards for minimum room volume are as follows.

1) No partition (shaded portion)

Total amount of refrigerant (kg)

Min. volume of the indoor unit installed room (m3)

≤ Concentration limit (kg/m

3

)

e.g., charged amount (10 kg)

e.g., charged amount (15 kg)

Outdoor unit

Indoor unit

Room A Room B Room C Room D Room E Room F

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).

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.

▼ 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)

Important

Refrigerant piping

Indoor unit

Outdoor unit

Outdoor unit

Very small room

Refrigerant piping

Indoor unit

Mechanical ventilation device - Gas leak detector

Small
room

Medium
room

Large room

0

5

10

10 20 30

15

20

25

30

35

40

m

2

kg

Min. indoor floor area

Range above the
density limit of 0.3 kg/m

3

(countermeasures
needed)

Range below the
density limit of

0.3 kg/m

3

(countermeasures
not needed)

Total amount of refrigerant

53-EN 54-EN

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SMMS Slim Duct Type

Installation Manual

EN

SMMS Slim Duct Type

Installation Manual

 Confirmation of indoor unit setup

Prior to delivery to the customer, check the address and setup of the indoor unit, which has been installed in this time and fill the check sheet (Table below).

Data of four units can be entered in this check sheet. Copy this sheet according to the No. of the indoor units. If the installed system is a group control system,

use this sheet by entering each line system into each installation manual attached to the other indoor units.

REQUIREMENT

This check sheet is required for maintenance after installation. Fill this sheet and then pass this Installation Manual to the customers.

Indoor unit setup check sheet

Indoor unit Indoor unit Indoor unit Indoor unit

Room name Room name Room name Room name

Model Model Model Model

Check indoor unit address. (For check method, refer to APPLICABLE CONTROLS in this manual.)

*In case of a single system, it is unnecessary to enter the indoor address. (CODE NO.: Line [12], Indoor [13], Group [14], Central control [03])

Line Indoor Group Line Indoor Group Line Indoor Group Line Indoor Group

Central control address Central control address Central control address Central control address

Various setup Various setup Various setup Various setup

Have you changed high ceiling setup? If not, fill check mark [×] in [NO CHANGE], and fill check mark [×] in [ITEM] if changed, respectively.

(For check method, refer to APPLICABLE CONTROLS in this manual.) * In case of replacement of jumper blocks on indoor microcomputer P.C. board,

setup is automatically changed.

External static pressure

(CODE NO. [5d])

F NO CHANGE

F STANDARD [0000]

F HIGH STATIC 1 [0001]

F HIGH STATIC 2 [0003]

F HIGH STATIC 3 [0006]

External static pressure

(CODE NO. [5d])

F NO CHANGE

F STANDARD [0000]

F HIGH STATIC 1 [0001]

F HIGH STATIC 2 [0003]

F HIGH STATIC 3 [0006]

External static pressure

(CODE NO. [5d])

F NO CHANGE

F STANDARD [0000]

F HIGH STATIC 1 [0001]

F HIGH STATIC 2 [0003]

F HIGH STATIC 3 [0006]

External static pressure

(CODE NO. [5d])

F NO CHANGE

F STANDARD [0000]

F HIGH STATIC 1 [0001]

F HIGH STATIC 2 [0003]

F HIGH STATIC 3 [0006]

Have you changed lighting time of filter sign? If not, fill check mark [×] in [NO CHANGE], and fill check mark [×] in [ITEM] if changed, respectively.

(For check method, refer to APPLICABLE CONTROLS in this manual.)

Filter sign lighting time

(CODE NO. [01])

F NO CHANGE

F NONE [0000]

F 150H [0001]

F 2500H [0002]

F 5000H [0003]

F 10000H [0004]

Filter sign lighting time

(CODE NO. [01])

F NO CHANGE

F NONE [0000]

F 150H [0001]

F 2500H [0002]

F

5000H [0003]

F 10000H [0004]

Filter sign lighting time

(CODE NO. [01])

F NO CHANGE

F NONE [0000]

F 150H [0001]

F 2500H [0002]

F 5000H [0003]

F 10000H [0004]

Filter sign lighting time

(CODE NO. [01])

F NO CHANGE

F NONE [0000]

F 150H [0001]

F 2500H [0002]

F 5000H [0003]

F 10000H [0004]

Have you changed detected temp. shift value? If not, fill check mark [×] in [NO CHANGE], and fill check mark [×] in [ITEM] if changed, respectively.

(For check method, refer to APPLICABLE CONTROLS in this manual.)

Detected temp. shift value setup

(CODE NO. [06])

F NO CHANGE

F NO SHIFT [0000]

F +1°C [0001]

F +2°C [0002]

F +3°C [0003]

F +4°C [0004]

F +5°C [0005]

F +6°C [0006]

Detected temp. shift value setup

(CODE NO. [06])

F NO CHANGE

F NO SHIFT [0000]

F +1°C [0001]

F +2°C [0002]

F +3°C [0003]

F +4°C [0004]

F +5°C [0005]

F +6°C [0006]

Detected temp. shift value setup

(CODE NO. [06])

F NO CHANGE

F NO SHIFT [0000]

F +1°C [0001]

F +2°C [0002]

F +3°C [0003]

F +4°C [0004]

F +5°C [0005]

F +6°C [0006]

Detected temp. shift value setup

(CODE NO. [06])

F NO CHANGE

F NO SHIFT [0000]

F +1°C [0001]

F +2°C [0002]

F +3°C [0003]

F +4°C [0004]

F +5°C [0005]

F +6°C [0006]

Incorporation of parts sold

separately

Incorporation of parts sold

separately

Incorporation of parts sold

separately

Incorporation of parts sold

separately

F Others ( )

F Others ( )

F Others ( )

F Others ( )

F Others ( )

F Others ( )

F Others ( )

F Others ( )

55-EN 56-EN

EH99879399