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

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.

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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.

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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

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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

Air discharge

100 or more

250 or

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

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

945

645

Service door (Ceiling opening)

Air filter

Service door (Ceiling opening)

945

745

645

 Arranging the to back air intake type

 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

4-Ø4

168

(inside)

210

511

645

168

120

103

359

372

422

502

163

Ø92

 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

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)

Hanging bolt

(W3/8 or M10)

Nut (W3/8 or M10)

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

NO GOOD

max 45°

90° Bend

Riser (Trap)

Top view

Side view

Air outlet

Side view

Air outlet

Support bracket

1/100 or more downward

Heat insulator

1.5 - 2 m Arched shape

Trap

GOOD

VP25

As long as possible (100 mm)

Downward slope 1/100 or more

VP30 or more

VP25

15-EN 16-EN

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