Toshiba MMK-AP0073H, MMK-AP0073H-C, MMK-AP0093H, MMK-AP0093H-C, MMK-AP0123H INSTALLATION MANUAL

...

SUPER MODULAR MULTI SYSTEM AIR CONDITIONER

Installation Manual

Indoor Unit

Model name:

Для коммерческого использования

For commercial use

Pour usage commercial

Nur für gewerbliche Nutzung

Per uso commerciale

Para uso comercial Para uso comercial

Voor commercieel gebruik

Για εμπορική χρήδη

Ticari amaçlý kullaným için

High-Wall Type

MMK-AP0073H, MMK-AP0073H-C MMK-AP0093H, MMK-AP0093H-C MMK-AP0123H, MMK-AP0123H-C MMK-AP0153H, MMK-AP0153H-C MMK-AP0183H, MMK-AP0183H-C MMK-AP0243H, MMK-AP0243H-C

Installation Manual 1

Manuel d’installation 31

Installations-handbuch 61

Manuale di installazione 91

Manual de instalación 121

Manual de Instalação 151

Installatiehandleiding 181

Εγχειρίδιο εγκατάστασης 211

Руководство по установке 241

English

Français

Deutsch

Italiano

Español

Português

Nederlands

Ελληνικά

Русский

Montaj Kılavuzu 271

301

Türkçe

SMMS High-Wall Type

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.

Installation Manual

ADOPTION OF NEW REFRIGERANT

This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional refrigerant R22 in order to prevent destruction of the ozone layer.

Contents

1 ACCESSORY PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2 PRECAUTIONS FOR SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3 SELECTION OF INSTALLATION PLACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 INSTALLATION OF INDOOR UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5 CUTTING A HOLE AND MOUNTING INSTALLATION PLATE . . . . . . . . . . . . . . 8

6 PIPING AND DRAIN HOSE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

7 INDOOR UNIT FIXING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

8 DRAINAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

9 REFRIGERANT PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

10 ELECTRIC WORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

11 APPLICABLE CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

12 TEST RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

13 TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1-EN

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SMMS High-Wall Type

1 ACCESSORY PARTS

 Accessory parts

Part name Q’ty Shape

Installation plate 1

Wireless remote controller 1

Battery 2

Remote control holder 1

Mounting screw Ø4 × 25 6

Installation Manual

Pan head wood screw Ø3.1 × 16 2

Screw Ø4 × 10 2

Heat insulator 1

Name

Owner’s manual

Installation manual

–2–

2-EN

SMMS High-Wall Type

Installation Manual

2 PRECAUTIONS FOR SAFETY

• Ensure that all Local, National and International regulations are satisfied.

• Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.

• The precautions described below include the important items regarding safety. Observe them without fail.

• After the installation work, perform a trial operation (test run) to check for any problem. Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.

• Turn off the main power supply switch (or breaker) before the unit maintenance.

• Ask the customer to keep the Installation Manual together with the Owner’s Manual.

WARNING

• Ask an authorized dealer or qualified installation professional to install (including moving)/ maintain the air conditioner.

Inappropriate installation may result in water leakage, electric shock or fire.

• Be sure to connect earth wire. (grounding work) Incomplete grounding cause an electric shock. Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone wires.

• Turn off the main power supply switch or breaker before attempting any electrical work. Make sure all power switches are off. Failure to do so may cause electric shock.

• Install the refrigerant pipe securely during the installation work before operating the air

conditioner.

If the air conditioner is operated with the valve open and without the refrigerant pipe, the compressor sucks air and the refrigeration cycle is over pressurized, which may cause a burst or injury.

• When moving the air conditioner for the installation into another place, be very careful not to

enter any gaseous matter other than the specified refrigerant into the refrigeration cycle.

If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes abnormally high and it resultingly causes pipe burst and injuries on persons.

• Perform installation work properly according to the Installation Manual. Inappropriate installation may result in water leakage, electric shock or fire.

• 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.

• Install the air conditioner securely in a location where the base can sustain the weight adequately.

• Perform the specified installation work to guard against an earthquake. If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.

• 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.

• 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 might generate.

• Electrical work must be performed by a qualified electrician in accordance with the Installation

Manual. Make sure the air conditioner uses an exclusive power supply.

An insufficient power supply capacity or inappropriate installation may cause fire.

• Use the specified wires for wiring connect the terminals securely fix.

To prevent external forces applied to the terminals from affecting the terminals.

• Conform to the regulations of the local electric company when wiring the power supply. Inappropriate grounding may cause electric shock.

3-EN

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SMMS High-Wall Type

• For the refrigerant recovery work (collection of refrigerant from the pipe to the compressor), stop the compressor before disconnecting the refrigerant pipe.

If the refrigerant pipe is disconnected while the compressor is working with the valve open, the compressor sucks air and the refrigeration cycle is over pressurized, which may cause a burst or injury.

Installation Manual

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, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle.

• To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the main unit and installation tools are changed from those for the conventional refrigerant.

• Accordingly the exclusive tools are required for the new refrigerant (R410A).

• For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does not enter.

To Disconnect the Appliance from Main Power Supply.

• This appliance must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.

• The installation fuse must be used for the power supply line of this conditioner.

• Tighten the flare nut with a torque wrench in the specified manner. Excessive tightening of the flare nut may cause a crack in the flare nut after a long period, which may result in refrigerant leakage.

• Wear heavy gloves and a long sleeve shirt during the installation work to avoid injury.

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SMMS High-Wall Type

Installation Manual

3 SELECTION OF INSTALLATION PLACE

WARNING

• Install the air conditioner at enough strong place to withstand the weight of the unit. If the strength is not enough, the unit may fall down resulting in injury.

CAUTION

• Do not install the air conditioner in a location subject to a risk of exposure to a combustible gas. If a combustible gas leaks and stays around the unit, a fire may occur.

Upon approval of the customer, install the air conditioner in a place that satisfies the following conditions.

• Place where the unit can be installed horizontally.

• Place where a sufficient servicing space can be ensured for safety maintenance and check.

• Place where drained water will not cause any problem.

Avoid installing in the following places.

• Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide gas (hot spring). (Should the unit be used in these places, special protective measures are needed.)

• A restaurant kitchen where a lot of oil is used or place near machines in a factory (Oil adhering to the heat exchanger and resin part (cross flow fan) in the indoor unit may reduce the performance, generate mist or dew drop, or deform or damage resin parts.)

• Place where organic solvent is used nearby.

• Place close to a machine generating high frequency.

• Place where the discharged air blows directly into the window of the neighbour house. (Outdoor unit)

• Place where noise of the outdoor unit is easily transmitted. (When install the outdoor unit on the boundary with the neighbour, pay due attention to the level of noise.)

• Place with poor ventilation.

• Do not use the air conditioner for special purposes such as preserving food, precision instruments, or art objects, or where breeding animals or growing plants are kept. (This may degrade the quality of preserved materials.)

• Place where any of high-frequency appliances (including inverter devices, private power generators, medical equipment, and communication equipment) and inverter-type fluorescent light is installed. (A malfunction of the air conditioner, abnormal control, or problems due to noise to such appliances/ equipment may occur.)

• When the wireless remote controller is used in a room equipped with an inverter-type fluorescent light or at a place exposed to direct sunlight, signals from the remote controller may not be received correctly.

• Place where organic solvent is used.

• Place near a door or window exposed to humid outside air (Dew dropping may form.).

• Place where special spray is used frequently.

5-EN

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SMMS High-Wall Type

 Installation diagram of Indoor and outdoor units

Before installing the wireless remote controller

1.Remove the battery cover.

2.Insert 2 new batteries (R03 [AAA] type) following the (+) and (–) positions.

Wireless remote controller

Cover

Batteries

Wireless remote control

(

tta

Pan head wood screw

Hook

Remote control holder

Hook

Installation plate

110mm or more

Shield pipe

Heat insulator

Installation Manual

For the rear left and left piping

Wall

Insert the cushion between the indoor unit and wall, and tilt the indoor unit for better operation.

Do not allow the drain hose to get slack.

Cut the piping hole sloped slightly.

Make sure to run the drain hose sloped downward.

The auxiliary piping can be connected to the left, rear left, rear right, right, bottom right or bottom left.

Right

Rear right

Bottom right

Rear left

Bottom left

Left

 Installation space

The indoor unit shall be installed so that its top surface comes at a height of 2m or more. Also it must be avoided to put anything on top of the indoor unit.

*1 Reserve space required to install the indoor unit and for service work.

Keep 110mm or more for clearance between top plate of the indoor unit and the ceiling surface.

*2 Provide a space as shown for service clearance for the cross flow fan.

 Installation place

• A place which provides the spaces around the indoor unit as shown in the above diagram.

• A place where there is no obstacle near the air inlet and outlet.

• A place that allows easy installation of the piping to the outdoor unit.

• A place which allows the front panel to be opened.

CAUTION

• Direct sunlight to the indoor unit’ s wireless receiver should be avoided.

• The microprocessor in the indoor unit should not be too close to RF noise sources. (For details, see the owner’ s manual.)

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SMMS High-Wall Type

Installation Manual

 Wireless remote controller

• A place where there are no obstacles such as a curtain that may block the signal from the indoor unit.

• Do not install the remote controller in a place exposed to direct sunlight or close to a heating source, such as a stove.

• Keep the remote controller at least 1m apart from the nearest TV set or stereo equipment. (This is necessary to prevent image disturb-bounces or noise interference.)

• The location of the remote controller should be determined as shown below.

Indoor unit

(Side view) (Top view)

Reception range

Indoor unit

Reception range

Remote controller

* : Axial distance

5 m

Remote controller

* 7 m

4 INSTALLATION OF INDOOR UNIT

WARNING

Install the air conditioner certainly to sufficiently withstand the weight. If the strength is insufficient, the unit may fall down resulting in human injury. Perform a specified installation work to guard against strong wind or earthquake. An incomplete installation can cause accidents by the units falling and dropping.

REQUIREMENT

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. (Even units are packaged)

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

• To move the indoor unit, do not apply force to the refrigerant pipe, drain pan, foamed parts, or resin parts, etc.

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

Be careful to the following items when installing the unit.

• Considering air discharge direction, select an installation place where discharge air can circulate evenly

in a room. Avoid to install the unit at place with “NO GOOD” mark in the right figure.

OK NO GOOD

Bad installation place

: Not cooled well.

Screen

7-EN

Good installation place Cooled well all over.

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SMMS High-Wall Type

Installation Manual

5 CUTTING A HOLE AND MOUNTING INSTALLATION

PLATE

 Cutting a hole

In case of installing the refrigerant pipes from the rear:

1. Decide the hole position for piping at 180mm from the arrow mark (Ö) on the installation plate and drill a hole at a slight downward slant toward outdoor side. Pipe hole; dia.65mm: AP007-AP018 type Pipe hole; dia.80mm: AP024 type

80 65

1111012101

23mm

180mm

Pipe hole

dia. 65mm: AP007-AP018 type dia. 80mm: AP024 type

80 65

1111012101

The centre of the pipe hole is above the arrow

NOTE

• When drilling a wall that contains a metal lath, wire lath or metal plate, be sure to use a pipe hole brim ring sold separately.

 When the installation plate is

directly mounted on the wall

1. Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook up the indoor unit.

2. To mount the installation plate on a concrete wall with anchor bolts, utilize the anchor bolt holes as illustrated in the above figure.

3. Install the installation plate horizontally in the wall.

CAUTION

When installing the installation plate with a mounting screw, do not use the anchor bolt hole. Otherwise the unit may fall down and result in personal injury and property damage.

GOOD

5mm dia. hole

OK NO

GOOD

Clip anchor (local parts)

Anchor bolt

Projection 15mm or less

Mounting screw 4 × 25

 Mounting the installation plate

Be sure that the installation plate is fix to the wall with screws to make the indoor unit fit to the wall.

Pipe hole

Hook

170

Indoor unit

Anchor bolt holes

Hook

Thread

Hook

Mounting Screw

Weight

132

dia.65mm

Pipe hole (dia. 65mm dia. 80mm)

Installation plate

170

CAUTION

Failure to firmly install the unit may result in personal injury and property damage if the unit falls.

• In case of block, brick, concrete or similar type

walls, make 5mm dia. holes in the wall.

• Insert clip anchors for appropriate mounting

screws.

2m or more from floor

NOTE

• Secure four corners and lower parts of the installation plate with 6 mounting screws to install it.

–8–

8-EN

SMMS High-Wall Type

Installation Manual

6 PIPING AND DRAIN HOSE INSTALLATION

 Piping and drain hose forming

* Apply heat-insulation for both refrigerant pipe and drain hose surely so that no dew generates inside of

the equipment. (Use polyethylene foam for insulating material.)

Rear right

Rear left

Bottom left

Left

Bottom right

Right

Removing

front panel

Die-cutting front panel

slit

Changing

drain hose

Piping

preparation

1. Remove the front panel

The front panel must be removed for piping

Air inlet grille

connections in the left, bottom left, and rear left directions.

Front panel

• Open the air inlet grille upward.

• Remove the four screws securing the front panel.

• Slightly open the lower part of the front panel, and then pull the upper part of the front panel toward you to remove it from

the rear plate.

2. Die-cutting front panel slit

Cut out the slit on the leftward or right side of the front panel for the left or right connection and the slit on the bottom left or right side of the front panel for the bottom left or right connection with a pair of nippers.

3. Changing drain hose

For leftward connection, bottom-leftward connection and rear leftward connection's piping, it is necessary to change the drain hose and drain cap. Without changing the drain hose position, the indoor unit will not fit to the wall.

How to remove the drain hose

• The drain hose can be removed by removing the screw securing the drain hose and then pulling out the drain hose.

• When removing the drain hose, be careful of any sharp edges of steel plate. The edges can injuries.

• To install the drain hose, insert the drain hose firmly until the connection part contacts with heat insulator, and the secure it with original screw.

Heat insulator

Drain hose

9-EN

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SMMS High-Wall Type

How to remove the drains cap

Clip the drain cap by needle-nose pliers and pull out.

How to fix the drains cap

1) Insert hexagonal wrench (dia. 4mm) in a centre head.

4mm

2) Firmly insert drains cap.

No gap

Installation Manual

Do not apply lubricating oil (refrigerant machine oil) when inserting the drain cap.

Insert a hexagon wrench (4 mm)

Application causes deterioration and drain leakage from the plug.

CAUTION

Firmly insert the drain hose and drain cap; otherwise, water may leak.

How to remove the drain hose

1) Remove the front panel.

2) Remove the screws of drain hose.

3) Pull out the drain hose.

▼ In case of right or left piping

• After scribing slits of the front panel with a knife or a marking-off pin, cut them with a pair of nippers or an equivalent tool.

How to fix the drain hose

1) Put the drain hose.

2) Screw the drain hose to the indoor unit.

3) Install the front panel.

Slit

–10–

10-EN

SMMS High-Wall Type

Installation Manual

▼ In case of bottom right or bottom left piping

• After scribing slits of the front panel with a knife or a marking-off pin, cut them with a pair of nippers or an equivalent tool.

Slit

▼ Left-hand connection with piping

Bend the connecting pipe so that it is laid within 43mm above the wall surface. If the connecting pipe is laid exceeding 43mm above the wall surface, the indoor unit may unstably be set on the wall. When bending the connecting pipe, make sure to use a spring bender so as not to crush the pipe.

Bend the connection pipe within a radius of 30 mm.

To connect the pipe after installation of the unit (figure)

(To the fore front of flare)

570mm

420mm

43mm

R 30 mm (Use polish polyethylene core or the like for bending pipe.)

Gas side

Liquid side

Outward form of indoor unit

Use the handle of screwdriver, etc.

NOTE

If the pipe is bent incorrectly, the indoor unit may unstably be set on the wall. After passing the connecting pipe through the pipe hole, connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them.

CAUTION

• Bind the auxiliary pipes (two) and power supply wiring and control wiring with facing tape tightly. In case of leftward piping and rear leftward piping, bind the auxiliary pipes (two) only with facing tape.

Indoor unit

Auxiliary pipes

Installation plate

Power supply wiring

Control wiring

11-EN

• Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit.

• Carefully connect the auxiliary pipes and connecting pipes to one another and cut off the insulating tape wound on the connecting pipe to avoid double-taping at the joint, moreover, seal the joint with the vinyl tape, etc.

• Since dew results in a machine trouble, make sure to insulate both the connecting pipes. (Use polyethylene foam as insulating material.)

• When bending a pipe, carefully do it, not to crush it.

–11–

SMMS High-Wall Type

Installation Manual

7 INDOOR UNIT FIXING

1. Pass the pipe through the hole in the wall, and hook the indoor unit on the installation plate at the upper hooks.

2. Swing the indoor unit to right and left to confirm that it is firmly hooked up on the installation plate.

3. While pressing the indoor unit onto the wall, hook it at the lower part on the installation plate. Pull the indoor unit toward you to confirm that it is firmly hooked up on the installation plate.

Hook here

Installation plate

Hook

Press

(unhook)

• For detaching the indoor unit from the installation

plate, pull the indoor unit toward you while pushing its bottom up at the specified parts.

8 DRAINAGE

1. Run the drain hose sloped downwards.

NOTE

• Hole should be made at a slight downward slant on the outdoor side.

2. Put water in the drain pan and make sure that the water is drained out of doors.

3. When connecting extension drain hose, insulate the connecting part of extension drain hose with shield pipe.

Do not rise the drain hose.

50 mm or more

Do not put the drain hose end into water.

Shield pipe

Do not form the drain hose into a wavy shape.

Do not put the drain hose end in the drainage ditch.

PushPush

REQUIREMENT

The lower part of indoor unit may float, due to the condition of piping and you cannot fix it to the installation plate. In that case, use the screws provided to fix the unit and the installation plate.

Especially when the pipes are pulled out from the left side, the unit must be screwed to the installation plate.

screw screw

Drain hose

Inside the room

Extension drain hose

CAUTION

Arrange the drain pipe for proper drainage from the unit. Improper drainage can result in dew-dropping.

This air conditioner has the structure designed to drain water collected from dew, which forms on the back of the indoor unit, to the drain pan. Therefore, do not store the power cord and other parts at a height above the drain guide.

Wall

Drain guide

Space for pipes

–12–

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SMMS High-Wall Type

9 REFRIGERANT PIPING

Installation Manual

 Refrigerant Piping

1. Use copper pipe with 0.8 mm or more thickness. (In case pipe size is dia. 15.9,

with 1.0mm or more.)

2. Flare nut and flare works are also different from those of the conventional refrigerant. Take out the flare nut attached to the main unit of the air conditioner, and use it.

REQUIREMENT

When the refrigerant pipe is long, provide support brackets at intervals of 2.5 to 3m to clamp the refrigerant pipe. Otherwise, abnormal sound may be generated.

CAUTION

IMPORTANT 4 POINTS FOR PIPING WORK

1. Remove dust and moisture from the inside of the connecting pipes.

2. Tight connection (between pipes and unit)

3. Evacuate the air in the connecting pipes using VACUUM PUMP.

4. Check the gas leakage. (Connected points)

 Pipe size

(dia.: mm)

MMK-

Gas side 9.5 12.7 15.9

Liquid

side

AP007 to

AP012 type

6.4 6.4 9.5

AP015 to

AP018 type

AP024 type

 Permissible Piping Length and

Height Difference

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

Flaring

• Cut the pipe with a pipe cutter. Remove burrs completely. Remaining burrs may cause gas leakage.

• Insert a flare nut into the pipe, and flare the pipe. As the flaring sizes of R410A differ from those of refrigerant R22, the flare tools newly manufactured for R410A are recommended. However, the conventional tools can be used by adjusting projection margin of the copper pipe.

▼ Projection margin in flaring: B (Unit: mm)

Rigid (Clutch type)

Outer dia. of

copper pipe

6.4 , 9.5

12.7 , 15.9

R410A tool used

R410A R410A

0 to 0.5 1.0 to 1.5

Conventional

tool used

▼ Flaring dia. meter size: A (Unit: mm)

Outer dia. of copper pipe

6.4 9.1

9.5 13.2

12.7 16.6

15.9 19.7

-0.4

R410A

13-EN

* 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.

–13–

SMMS High-Wall Type

Installation Manual

Tightening connection

CAUTION

• Do not apply excessive torque. Otherwise, the nut may crack depending on the conditions.

(Unit: N•m)

Outer dia. of copper pipe Tightening torque

6.4 mm (dia.) 14 to 18 (1.4 to 1.8 kgf•m)

9.5 mm (dia.) 33 to 42 (3.3 to 4.2 kgf•m)

12.7 mm (dia.) 50 to 62 (5.0 to 6.2 kgf•m)

15.9 mm (dia.) 68 to 82 (6.8 to 8.2 kgf•m)

▼ 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. Align the centres of the connecting pipes and tighten the flare nut as far as possible with your fingers. Then tighten the nut with a spanner and torque wrench as shown in the figure.

Heat insulation

Heat insulation for the pipes should be done separately for the liquid side and gas side. Because both of the liquid and gas side pipes become a low temperature during cooling operation, sufficient heat insulation should be done to prevent condensation.

• Heat insulator with a heat resistance of 120°C or more must be used for the gas side pipe.

• The pipe connection section of the indoor unit must be heat insulated securely and compactly with the attached heat insulator.

Fix with vinyl tape

Heat insulator (attached)

Local side pipe

 Airtight test/Air purge, etc.

For airtight test, air purge, addition of refrigerant, and gas leak check, follow the Installation Manual attached to the outdoor unit.

Work using double spanner

REQUIREMENT

Tightening with an excessive torque may crack the nut depending on installation conditions. Tighten the nut within the specified tightening torque.

Piping with outdoor unit

• Shape of valve differs according to the outdoor unit. For details of installation, refer to the Installation Manual of the outdoor unit.

 Open fully valves of the outdoor

unit

 Gas leak check

Check with a leak detector or soap water whether gas leaks or not, from the pipe connecting section or cap of the valve.

REQUIREMENT

Use a leak detector manufactured exclusively HFC refrigerant (R410A, R134a, etc.).

–14–

14-EN

SMMS High-Wall Type

10 ELECTRIC WORK

WARNING

1. Using the specified wires, ensure to connect the wires, and fix wires securely so that the external tension to the wires do not affect the connecting part of the terminals.

Incomplete connection or fixation may cause a fire, etc.

2. Be sure to connect earth wire. (grounding work)

Incomplete grounding cause an electric shock. Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone wires.

3. 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.

Installation Manual

• 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.

CAUTION

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

• Be sure to 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.

• Be sure to use the cord clamps attached to the product.

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

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

• Never connect 220–240V power to the terminal blocks ( , , , , etc.) for control wiring. (Otherwise, the system will fail.)

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.

A B

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Installation Manual

 Power supply wire and communication wires specifications

Power supply wire and communication wires are procured locally. For the power supply specifications, follow the table below. Power supply wiring and communication wiring are to be procured locally. For specifications of the power capacity of the outdoor unit and the power supply wires, refer to the Installation Manual supplied with the outdoor unit.

Indoor unit power supply

• Prepare an exclusive power supply for the indoor unit independently of the outdoor unit.

• Arrange the power supplies to the indoor and outdoor units, so that a common earth leakage breaker and main switch can be used.

• Power supply wire specification: Cable 3-core 2.5mm², in conformity with Design H07 RN-F or 60245 IEC 57.

▼ Power supply

Power supply

Power supply switch/Earth leakage 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 50m 2.5 mm²

Control wiring, Central controller wiring

• Use a 2 core non polarity wire.

• To prevent any possible noise issues, use a shielded 2 core wire.

• The total stated length of communication wiring is determined by the interconnecting length of indoor to outdoor wire plus the length of the central control communication wire.

220–240V ~ 50Hz 220V ~ 60Hz

▼ Communication line

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

Central control line wiring (2-core shield wire) Wire size

Wire size

(Up to 1000m) 1.25 mm² (Up to 2000m) 2.0 mm²

Wired remote controller wiring

This wiring is not required when using the supplied wireless remote controller.

• For wiring remote controllers a 2 core non polarity wire must be used.

Wired remote controller wiring, remote controller inter-unit wiring Wire size: 0.5mm² to 2.0mm²

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

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

In case of wired type only Up to 500m In case of wireless type included Up to 400m

CAUTION

The remote controller wire (Communication line) and AC220–240V 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, etc.

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Installation Manual

Wired remote controller wiring

Indoor unit

Wired remote

controller

L1 L2 Ln

Remote controller inter-unit wiring

Indoor unit Indoor unit Indoor unit

(Max. 8 units)

 Control wiring between indoor and outdoor units

NOTE

An outdoor unit that is interconnected to the indoor units automatically becomes the header unit.

▼ Wiring example

Outdoor Power supply

380V-415V ~, 50Hz 380V ~, 60Hz

Earth

terminal

Earth leakage breaker

Header outdoor unit Follower outdoor unit

U1 U2 U3 U4L1 L2 L3 N U5 U6

Outdoor Power supply

380V-415V ~, 50Hz 380V ~, 60Hz

Earth

terminal

Earth leakage breaker

U1 U2 U3 U4L1 L2 L3 N U5 U6

Control wiring between outdoor units

Earth Earth

U1 U2L N A B

A B

Remote controller Remote controller

U1 U2L N A B

A B

Indoor unit Indoor unit Indoor unit Indoor unit

Earth Earth

Indoor power supply

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

Earth leakage breaker power switch

Control wiring between indoor and outdoor units

Control wiring between indoor units

U1 U2

L N A B

A B

Remote controller

Pull box Pull box Pull box

 Address setup

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

U1 U2L N A B

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Installation Manual

 Wired remote controller wiring

• As the wired remote controller wire has non-polarity, there is no problem if connections to indoor unit terminal blocks A and B are reversed.

▼ Wiring diagram

Terminal block for remote controller wiring of indoor unit

Terminal block

A B

Wired remote controller wire (Procured locally)

A B

Wired remote controller unit

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 Wiring Connection

How to connect the power supply wiring and control wiring

The power supply wire and the control wire can be connected without removing the front panel.

REQUIREMENT

Connect the power supply wire after connecting the control wire for this model.

1. Remove the air inlet grille.

Open the air inlet grille upward and pull it toward you.

2. Remove the terminal cover and the clamp

base.

3. Insert the power supply wire and control

wire (according to the local rule) into the pipe hole on the wall.

4. Take the power supply wire out of the cable

slot on the rear panel so that it protrudes about 150mm from the front.

5. Insert the control wire fully into the control/

wired remote controller terminal block ,

, , and secure it tightly with screws.

A B

6. Clamp the control wire with the cord clamp.

7. Install the clamp base with a screw.

8. Insert the power supply wire fully into the

terminal block and secure it tightly with screws. Tightening torque: 1.2 N·m (0.12 kgf·m) Secure the earth line with the earth screw.

9. Clamp the power supply wire with the cord

clamp.

10.Attach the terminal cover and the air inlet

grille to the indoor unit.

CAUTION

• Be sure to refer to the wiring diagram attached inside the front panel.

• Check local electrical cords and also any specific wiring instructions and limitations.

• Do not catch the control wire when installing the clamp base.

Power supply terminal block

Terminal block for communication/remote controller wiring

Terminal Cover

Screw

Power supply wire

about 150mm

Terminal block for control/ wired remote controller wiring

Control wire

Cord clamp

Power supply terminal block

Cord clamp

Screw

N L

U1U2A

Clamp base

95mm

20mm

10mm

R(L)

S(N)

Screw

Earth screw for power supply wire

R(L) S(N)

R(L)

S(N)

Earth screw

Earth line

75mm

S(N)

Earth wire for shield wire

Earth screw for shield wire

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Terminal block for control/ wired remote controller wiring

Cord clamp

U1 U2 A

Wired remote controller wire

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Cord clamp

Power supply wire

ABU1U

Earth screw

Earth wire for power supply wire

Clamp base

SMMS High-Wall Type

Installation Manual

 Wiring connection for flow selector unit

How to connect the wiring of flow selector unit

Connect the power supply wire and the communication wire supplied with the flow selector unit to the indoor unit.

1. Remove the air inlet grille. Open the air inlet grille upward and pull it toward you.

2. Remove the four screws securing the front panel.

3. Slightly open the lower part of the front panel, and then pull the upper part of the front panel toward you to remove it from the rear plate.

4. Remove the terminal cover and the clamp base.

5. Insert the control wire fully into the control/wired remote controller terminal block and secure it tightly with screws.

6. Connect the control wire connector of the flow selector unit to the lead with a connector to the left of the control/wired remote controller terminal block.

7. Clamp the control wire and the control wire of the flow selector unit with the cord clamp.

8. Install the clamp base with a screw.

9. Insert the power supply wire fully into the terminal block and secure it tightly with screws. Tightening torque: 1.2 N·m (0.12 kgf·m) Secure the earth line with the earth screw.

10.Clamp the power supply wire with the cord clamp.

11.Insert the power supply wire fasten terminal of the flow selector unit into the power supply terminal. Secure the earth line with the earth screw.

12.Clamp the power supply wire of the flow selector unit tight with the cord clamp.

13.Attach the terminal cover, the front panel and the air inlet grille to the indoor unit.

Power supply terminal block

R(L)

Control wire from the flow selector

Control wire

Terminal block for control/wired remote controller wiring

Connector

Cord clamp

S(N)

ABU1U

Power supply wire

Earth screw for flow selector unit

Cord clamp

Power supply wire of flow selector unit

CAUTION

Confirm that every wires are stored in the electric parts box without getting caught before attaching the terminal cover.

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