Toshiba MMD-AP0091BH, MMD-AP0071BH, MMD-AP0361BH, MMD-AP0481BH, MMD-AP0121BH INSTALLATION MANUAL

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INSTALLATION MANUAL

SUPER MODULAR MULTI SYSTEM AIR CONDITIONER

For commercial use (Not accessible to the general public)

Indoor Unit

MMD-AP0071BH, AP0091BH, AP0121BH, MMD-AP0151BH, AP0181BH, AP0241BH, MMD-AP0271BH, AP0301BH, AP0361BH, MMD-AP0481BH, AP0561BH

Thank you very much for purchasing TOSHIBA Air Conditioner. Please read this owner's manual carefully before using your Air Conditioner.

• Be sure to obtain the “Owner’s manual” and “Installation manual” from constructor (or dealer). Request to constructor or dealer Please clearly explain the contents of the Owner’s manual and hand over it.

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

Accessory parts and Parts to be procured locally ........................................... 3

1 PRECAUTIONS FOR SAFETY .................................................................... 4

2 SELECTION OF INSTALLATION PLACE ................................................... 5

3 INSTALLATION OF INDOOR UNIT............................................................. 7

4 DRAIN PIPING WORK................................................................................. 9

5 REFRIGERANT PIPING............................................................................. 11

6 ELECTRIC WORK ..................................................................................... 13

7 APPLICABLE CONTROLS........................................................................ 17

8 TEST RUN.................................................................................................. 20

9 TROUBLESHOOTING ............................................................................... 22

10 MAINTENANCE ......................................................................................... 27

Accessory parts and Parts to be procured locally

H Accessory parts

Part name

Installation Manual

Heat insulating pipe

Washer

Part name

Standard wired remote controller

Refrigerant piping

Q’ty

Shape

This manual

M10 × Ø34

Shape

Usage

(Be sure to hand over to customers)

For heat insulation of pipe connecting section

For hanging-up unit

Usage

Model: RBC-AMT21E

• Piping material used for the conventional refrigerant cannot be used.

• Use copper pipe with 0.8 mm or more thickness for Ø6.4, Ø9.5, Ø12.7. Use copper pipe with 1.0 mm or more thickness for Ø15.9.

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

H Parts to be procured locally

INFORMATION

Connecting pipe (Liquid side) (6.4mm (diam.), Nominal (diam.) 1/4” thick 0.8mm) MMD-AP0071BH to MMD-AP0181BH

(9.5mm (diam.), Nominal (diam.) 3/8” thick 0.8mm) MMD-AP0241BH to MMD-AP0561BH

Connecting pipe (Gas side) (9.5mm (diam.), Nominal (diam.) 3/8” thick 0.8mm)

MMD-AP0071BH to MMD-AP0121BH (12.7mm (diam.), Nominal (diam.) 1/2” thick 0.8mm)

MMD-AP0151BH to MMD-AP0181BH (15.9mm (diam.), Nominal (diam.) 5/8” thick 1.0mm)

MMD-AP0241BH to MMD-AP0561BH

Power supply cord Cable 3-core 2.5mm2,

in conformity with Design 60245 IEC57

• In this air conditioner, a Direct current motor is adopted for the indoor fan motor.

The current limit control works in the characteristics of direct current motor.

When exchanging a high-performance filter with new one or opening the service board, be sure to stop the fan; otherwise a protective control works resulted in stop of the air conditioner, and then an error code [P12] may be output.

However it is not a trouble. After the desired operation has finished, reset the

earth leak breaker of the indoor unit and push the operation STOP button on the remote controller to return the operation to the usual operation.

1 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 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.

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 charged 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. Moreover, do not use the existing piping because there are problems with pressure-resistance force and impurity in it.

CAUTION 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.

WARNING

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

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

• 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.

• Connect the connecting wire correctly.

If the connecting wire is connected in a wrong way, electric parts may be damaged.

• 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 as a result causes pipe burst and injuries on persons.

• Do not modify this unit by removing any of the safety guards or by by-passing any of the safety

interlock switches.

• Exposure of unit to water or other moisture before installation may cause a short-circuit of

electrical parts.

Do not store it in a wet basement or expose to rain or water.

• After unpacking the unit, examine it carefully if there are possible damage.

• Do not install in a place that might increase the vibration of the unit.

• To avoid personal injury (with sharp edges), be careful when handling parts.

• 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.

• 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.

2 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.

• Install the air conditioner at a height 2.5m or more from the floor.

If you insert your hands or others directly into the unit while the air conditioner operates, it is dangerous because you may contact with revolving fan or active electricity.

CAUTION

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.)

• Place exposed to oil, vapor, oil smoke or corrosive gas.

• 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 neighboring house. (For outdoor unit)

• Place where noise of the outdoor unit is easily transmitted.

(When installing the air conditioner on the boundary with the neighbor, pay due attention to the level of noise.)

• Place with poor ventilation.

(Before air ducting work, check whether value of air volume, static pressure and duct resistance are correct.)

2 SELECTION OF INSTALLATION PLACE

Installation space

Reserve space required for maintenance the indoor unit and service work.

700mm *1 700mm *1

Air outlet

Electric parts box

Ceiling opening size C

Air outlet

Check port B

450mm

Air filter

700mm for maintenance of air filter 700mm for

Ceiling opening part

(150mm)

maintenance of air filter

Check port A

450mm

300mm

400mm (Min.)

Electric parts box

Ceiling opening

size D

Air filter

25mm

Notes)

*1 Be sure that space with 700mm or more is

reserved for attachment/detachment at the taking-out direction of the air filter.

*2 Be sure to set a check port (A) for the

refrigerant piping, drain piping, maintenance of drain pan, etc; otherwise maintenance for devices is unavailable.

*3 If the taking-out direction of the air filter is set at

the left side, be sure to set a check port (B) at the left side of the set for attachment/detachment of the air filter. If there is no check port (B), the air filter cannot be attached or detached.

*4 Be sure to set a ceiling opening for

maintenance of the electric ports such as fan motor; otherwise maintenance for electric parts such as fan motor is unavailable.

MODEL MMD-AP

Set width (mm) Air filter width (mm) Ceiling opening size C Ceiling opening size D

0071BH to 0121BH 0151BH to 0181BH 0241BH to 0301BH 0361BH to 0561BH

550 700 1000 1350 508 655 960 (480∗2) 1310 (655∗2) 600 750 1050 1400 470 470 470 470

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 outside air

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

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

[Reference] Dewing test conditions

Indoor side: 27°C dry bulb temperature

24°C wet bulb temperature

Air volume: Low air volume, operation time 4 hours

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.

If the room is not heated due to the installation place or construction of the room, the detection temperature of heating can be raised.

For setup method, refer to “Change of lighting term of filter sign” and “To secure better effect of heating” in the Applicable controls of this Manual.

In case of wireless type

The sensor of indoor unit with wireless remote controller can receive a signal within approx. 8m.

Based upon it, determine a place where the remote controller is operated and the installation place of the indoor unit.

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

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

Within 8m

3 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, hold the hooking metals (4 positions) only. Do not apply force to the other parts (refrigerant pipe, drain pan, foamed parts, or resin parts, etc.).

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

3 INSTALLATION OF INDOOR UNIT

External view

Refrigerant pipe connecting port (Gas side ØF)

129

110

6-Ø4 Tapping screw hole Ø160

• Wired remote controller (RBC-AMT21E)

Knock-out hole Ø125 (Air take-in port)

2.7

120

Hanging bolt pitch B

Main unit dimension A

AP0071BH, AP0091BH, AP0121BH

Refrigerant pipe connecting port (Liquid side ØG)

AP0151BH, AP0181BH

120

AP0241BH, AP0271BH, AP0301BH AP0361BH, AP0481BH, AP0561BH

Opening hole on ceiling and placing of hanging bolt

Drain pipe connecting port for vinyl chloride pipe (Inner dia. 32, VP. 25)

Main unit dimension 800

Hanging bolt 4-M10 screw (Arranged locally)

44 49

Ø26 Power supply, remote controller cable take-out port

Model MMD-

Hanging bolt pitch 700

131

638

ABFG

498

243

393

196

550 616 9.5 6.4 700 766 12.7 6.4 1000 1066 15.9 9.5 1350 1416 15.9 9.5

174

320

• Considering the indoor unit and the hanged-up piping/wiring work, determine the installation position and direction.

•

After installation position of the indoor unit has been determined, open a hole on the wiring and place the hanging bolt.

• For opening size of the ceiling and the hanging bolt pitch, see the external view.

• When the ceiling has already boarded, draw the drain pipe, refrigerant pipe, inter-unit wire between indoor and outdoor units, central control system wire, and remote controller wire up to the position where pipes and wires are connected before hanged-up the indoor unit.

The hanging bolts and nuts will be procured locally.

Hanging bolt

Nut

M10 or W3/8 M10 or W3/8

4 pieces

12 pieces

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.

New concrete slab

Install the bolts with insert brackets or anchor bolts.

Reinforcing steel

(Blade type

bracket)

(Slide type

bracket)

Anchor bolt

(Pipe hanging

anchor bolt)

Steel flame structure

Use existing angles or install new support angles.

Hanging bolt Support angle

Hanging bolt

Hanging bolt (W3/8 or M10)

Existing concrete slab

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

(1) M10 flat washer (Accessory)

Installation of indoor unit

• Attach the nuts (M10 or W3/8: Procured locally) and the attached washers (Ø34) to the hanging bolt.

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

• Using a level vial, check that four sides are horizontal. (Horizontal degree: Within 5mm)

Nut (W3/8 or M10)

(1)Required those other than M10 flat washer at site. (2)To prevent falling-off of bolt (safety), be sure to set it

just under the hanging bracket as shown in the figure.

(2) M10 flat washer (Accessory)

Installation of remote controller (Sold separately)

As long as possible (10cm)

VP30 or more

Downward slope 1/100 or more

VP25

(Collective pipes)

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

• Do not put the remote controller on the place where is exposed to direct sunlight or near a stove, etc.

• Operating the remote controller, check the indoor unit surely receives the signal, and then install the remote controller. (Wireless type)

• Install the remote controller 1m apart from the devices such as TV or stereo. (Image may be disturbed or noise may be output.) (Wireless type)

4 DRAIN PIPING WORK

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. Inappropriate piping work may result in water leakage in the room and wet of furniture.

Pipe material/Insulator and size

The following materials for piping work and insulating process are procured locally.

Pipe material

Insulator

REQUIREMENT

• Be sure to perform heat insulation of the drain pipes of the indoor unit.

• Never forget to perform heat insulation of the connecting part with the

indoor unit. An incomplete heat insulation causes dewing.

• 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 20m or less.

In case of a long pipe, provide support brackets with interval of

1.5 to 2m in order to prevent waving.

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

• Do not mount an air purge pipe,

otherwise drain water spouts out resulted in water leak.

Hard vinyl chloride pipe VP25 (Outer diameter Ø32mm)

Foamed polyethylene foam, thickness: 10mm or more

Heat insulator

1.5m to 2m

1/100 or more downward

Arched shape

Trap

Support bracket

• The hard vinyl-chloride pipe cannot be directly connected to

• Adhesive agent cannot be used for the pipe connecting port (hard socket) of the indoor unit.

Connection of drain pipe

• Connect the hard socket (Procured locally) to the hard socket side of the attached flexible hose which has been installed.

• Connect the drain pipes (Procured locally) successively to the connected the hard socket.

the drain pipe connecting port of the indoor unit. For connection with the drain pipe connecting port, be sure to fix the attached flexible hose.

Be sure to use the attached hose band for fixing, otherwise damage or water leakage of the drain pipe connecting port is caused.

REQUIREMENT

• Using adhesive agent for vinyl chloride, connect the hard vinyl chloride pipes certainly so that water does not leak.

• It requires several times to dry and harden the adhesive agent.

(Refer to Guide Manual of the adhesive agent.) In this time, be sure not to apply force to the connecting section with the drain pipes.

220–240V ~, 50Hz 220V

, 60Hz

White

Black

CN34 (RED)

Black

Red

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

R(L) S(N)

4 DRAIN PIPING WORK

Drain up

When a downward grading cannot be secured on the drain pipe, a drain-up work is possible.

• Set the height of the drain pipe within 550mm from the bottom surface of the ceiling.

• Draw out the drain pipe within 100mm from the end of the drain pipe connecting port of the indoor unit, and then raise it vertically.

• After the drain pipe has been raised, set a grading so that it is immediately bent downward.

Check the draining

After drain piping work, check that water drain is properly performed and water does not leak from the connecting part of the pipes. In this time, check also there is no abnormal sound of the motor of the drain pump.

Be sure to check draining when installed in the heating period.

When the electric work has finished:

• Before installing a panel, pour water as shown in the following figure, check water is drained from the drain pipe connecting port (Transparent) in COOL mode, and then check there is no water leak from the drain pipes.

100mm

or less

Indoor unit

Rising up 550mm or less

When the electric work has not finished:

• Pull out the float switch connector (3P: Red) from P.C. board connector (CN34: Red) of the electric parts box. (In this time, be sure to check the power is turned off.)

• Connect the single-phase 220-240V 50Hz (or 220V 60Hz) power to the terminal blocks R (L) and S (N). (Never apply 220-240V to (A), (B), (U1),and (U2), otherwise a trouble of P.C. board occurs.)

• Pour water referring to the right figure. (Amount: 1500cc to 2000cc)

• When the power is turned on, the drain pump motor drives automatically.

Check water is drained from the drain pipe connecting port (Transparent), and then check there is no water leak from the drain pipes.

• After check of draining and water leak, turn off the power supply, attach the float switch connector to the original position (CN34) of P.C. board, and then set the electric parts box as before.

Thermal insulating process

Insert the end of hose up to the near of suction port of drain pump.

Service plate

• After check of draining, apply thermal insulation surely to the pipe connecting part.

• Give taping without clearance to the striking section of the main unit with thermal insulator at local site.

Hard vinyl chloride pipe (Required at site)

Heat insulator (Required at site)

Butt heat insulator without clearance.

Using tape, fix the heat insulator.

Heat insulator (Main unit side)

5 REFRIGERANT PIPING

WARNING

• 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

may generate.

REQUIREMENT

When the refrigerant pipe is long, set the support brackets to fix the pipe with 2.5 to 3m intervals. If the pipe is not fixed, abnormal sound may generate. Be sure to use the flare nuts attached to the indoor unit or those fro R410A.

Permissible pipe length and permissible height difference

They are different according to the used outdoor unit. For details, refer to the Installation Manual attached to the outdoor unit.

Piping material and dimensions

Piping material

Model MMD-AP

Pipe size (mm)

• Use a clean and new pipe, and check that impurity such as dust, oil, moisture, etc. does not adhere in the pipe.

Gas side Liquid side

Pipe Forming/End Positioning

Flaring

1. Cut the pipe with a pipe cutter.

90˚

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

As the flaring sizes of R410A differ from those of refrigerant R22, the flare tools newly manufactured for R410A are recommended.

However, the conventional tools can be used by adjusting projection margin of the copper pipe.

Obliquity Roughness Warp

Phosphor deoxidization joint-less pipe for air conditioner

0071BH to 0121BH 0151BH to 0181BH 0241BH to 0561BH

Ø9.5 Ø12.7 Ø15.9 Ø6.4 Ø6.4 Ø9.5

• Flaring diam. meter size : A (Unit : mm)

Outer diam. of copper pipe

6.4

9.5

12.7

15.9

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.

- 0.4

R410A

9.1

13.2

16.6

19.7

5 REFRIGERANT PIPING

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

Rigid (Clutch type)

Outer diam. of

copper pipe

6.4

9.5

12.7

15.9

R410A tool used

R410A R22

0 to 0.5 (Same as left) 0 to 0.5 (Same as left) 0 to 0.5 (Same as left) 0 to 0.5 (Same as left)

Conventional tool used

R410A R22

1.0 to 1.5 0.5 to 1.0

Imperial (Wing nut type)

Outer diam. of copper pipe

6.4

9.5

12.7

15.9

R410A R22

1.5 to 2.0 1.0 to 1.5

2.0 to 2.5 1.5 to 2.0

Connection of refrigerant pipe

Connect all the refrigerant pipes with flare connecting work.

• Since the atmospheric pressure only is sealed as the sealing gas, it is not abnormal that “Pushu…” sound is not heard when the flare nut is removed.

• Be sure to use a double spanner for pipe connecting work of the indoor unit.

• Tightening torque of flare pipe connections

Pressure of R410A is higher than that of R22 by 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 refrigerating cycle.

REQUIREMENT

If an excessive torque is applied, the nut may crack depending on the installation conditions.

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.

REQUIREMENT

Be sure to use the tool such as charge hose exclusive to R410A.

Do not turn on the power until the airtight test and the vacuuming have finished. (If turning on the power, the incorporated PMV is closed fully and the period until the vacuuming finishes elongates.)

Open fully valves of the outdoor unit

Gas leak check

Work using double spanner

• Refer to the following table for tightening torque.

Connecting pipe

outer dia. (mm)

Ø6.4

Ø9.5

Ø12.7

Ø15.9

Tightening torque

(N•m)

14 to18 (1.4 to 1.8 kgf•m)

33 to 42 (3.3 to 4.2 kgf•m)

50 to 62 (5.0 to 6.2 kgf•m)

68 to 82 (6.8 to 8.2 kgf•m)

Re-tightening

torque (N•m)

18 (1.8 kgf•m)

42 (4.2 kgf•m)

50 (5.0 kgf•m)

68 (6.8 kgf•m)

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 for HFC refrigerant (R410A, R134a, etc.).

Heat insulating process

Perform heat insulating for pipes at liquid side and gas side separately. In cooling time, temperature at both liquid and gas sides becomes lower.

Therefore, perform heat insulating process sufficiently to avoid dewing.

• For heat insulator of pipe at gas side, be sure to use one with heat-resisting temp.120°C or more.

• Using the attached heat insulating pipe, perform heat insulating process securely for pipe connecting part of the indoor units without clearance.

6 ELECTRIC WORK

WARNING

REQUIREMENT

Apply the thermal insulation to the pipe connecting section of the indoor unit securely up to the root without exposure of the pipe. (The pipe exposed to the outside causes water leak.)

Set notching upward.

Pipe side (Required at the site)

Attached heat insulating pipe

1. Using the specified wires, ensure to connect the wires, and fix wires securely so that the

external strength of the wires do not transmit to the connecting part of the terminals.

Incomplete connection or fixation may cause a fire, etc.

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

Do not connect the earth wire to gas pipe, city water pipe, lightning rod, or the earth wire of telephone. Incomplete grounding causes an electric shock.

3. For electric work, strictly follow to the Local Regulation in each country and the Installation

Manual, and use an exclusive circuit.

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

CAUTION

Be sure to install an earth leakage breaker.

If an earth leakage breaker is not installed, an electric shock may be caused.

REQUIREMENT

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

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

• Never connect 220–240V power to the terminal blocks (A, B, U1, U2, X, Y, etc.) for control wiring.

(Otherwise, the system will be failed.)

• Perform the electric wiring so that it does not come to contact with the high-temperature part of the pipe.

The coating may melt resulted in an accident.

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

• Store 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.

• Keep a margin (Approx. 100mm) on a wire to hang down the electric parts box at servicing, etc.

6 ELECTRIC WORK

Power supply specifications

Power supply cord 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 seizure 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.

Power supply (*1)

Communication line

Power supply Power supply switch/Earth leakage breaker or power supply wiring/fuse rating for

indoor units should be selected by the accummulated total current values of the indoor units.

Below 20m

Power supply wiring

Indoor/Outdoor inter-unit wiring (*2) (2 cables)

Central control line wiring (*3) (2 cables)

Remote controller wiring (*4) (2 cables)

Below 50m

Wire size

220–240V

(Up to 1000m) Twist wire : 1.25 mm² (Up to 2000m) Twist wire : 2.00 mm²

~ 50Hz, 220V ~ 60Hz

Twist wire : 2.0 mm² Twist wire : 3.5 mm²

Twist wire : 0.5 to 2.0 mm²

Indoor unit power supply (*1)

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

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

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

Indoor/Outdoor inter-unit wiring, Central controller wiring (*2) (*3)

• 2-core with polarity wires are used for the Indoor/Outdoor inter-unit wiring 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.

Remote controller wiring (*4)

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

CAUTION

Remote controller wiring, remote controller inter-unit wiring

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

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

Indoor unit

Remote controller wiring

Remote

controller

Twist wire: 0.5mm2 to 2.0mm2 × 2

In case of wired type only In case of wireless type included

Indoor unit

L1 L2 Ln

Remote controller inter-unit wiring

Up to 500m Up to 400m Up to 200m

Indoor unit Indoor unit

(Max. 8 units)

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.

Electric parts box cover

Connecting wire hole

Electric parts box

Cable connection

(L)S(N)

Earth line

Connecting cable

REQUIREMENT

• Be sure to pass the wire through the wire connection port of the indoor unit.

• Keep a margin (Approx. 100mm) on a wire to hang down the electric parts box at servicing, etc.

• The low-voltage circuit is provided for the remote controller.

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

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

• Be sure to set a loop for the connecting wire of the storing part of the indoor unit electric parts; otherwise the electric parts box cannot be drawn out in service time.

• Mount the cover of the electric parts box without pinching wires.

Inter-unit cable between indoor and outdoor units

R(L) S(N)

U1 U1 A B

Cable cramp Power supply cable

Remote controller wire

6 ELECTRIC WORK

Remote controller wiring

• Strip off approx. 14mm cover of the wire to be connected.

• Twist wire of the remote controller to be connected with wire of the remote controller unit (or sensor), and pressfit them with a wire joint. (Wire joints (White: 2 pieces) are included in the accessory of the main remote controller (sold separately) or wireless remote controller kit (sold separately).)

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

Terminal block for remote controller wiring of indoor unit

A B

Remote controller wire (Local procure)

Wiring between indoor and outdoor units

Approx. 200mm

Connecting part

W : White B : Black

Remote

Wire from remote controller unit or sensor

controller unit or sensor part

Remote controller wiring

Wire from remote controller or sensor

Wire joint

Outdoor power supply 3-phase 380–415V, 50Hz 380V, 60Hz

Central control line wire

Power supply 220–240V 220V

Indoor power supply 220–240V 220V ~ 60Hz

50Hz

Earth leakage breaker

50Hz

60Hz

Remote controller, for central control, etc.

Earth leakage breaker

Switch

Header unit Follower unit

Connection of shield wire closed terminal

(Open)

Indoor/Outdoor inter-unit wire

Connection of shield wire closed terminal

NOTE

An outdoor unit connected with indoor/outdoor inter-unit wire becomes automatically the header unit.

(Earth)

Earth

Inter-unit wire between outdoor units

Pull box

(Earth)

Indoor unit

(Remote controller group operation)

Address setup

Set up the addresses according to the Installation Manual attached to the outdoor unit.

7 APPLICABLE CONTROLS

NOTIFICATION

When using the equipment at the first time, it will take a lot of time that the remote controller accepts an operation after power was on. However, it is not a trouble.

• Automatic address

• While automatic addressing, the operation cannot be performed on the remote controller.

• For automatic addressing, Max. 10 minutes (generally, approx. 5 minutes) are required.

• When power will be turned on after finish of automatic addressing;

• It will require Max. 10 minutes (generally, approx. 3 minutes) that outdoor unit starts operation after power was on.

As all have been set to [Standard] at the shipment, change the setup of the indoor unit if necessary To change the setup, use the main remote controller (wired remote controller). * The setup change for wireless remote controller, sub remote controller, or remote controller-less system

(Central control remote controller only is provided.) is impossible. In these cases, prepare and mount a separate main remote controller.

Exchange of applicable control setup

Basic operation procedure for setup exchange

Change the setup while operation of the equipment stops. (Be sure to stop the operation of a set.)

Procedure

SET

, CL , and buttons simultaneously for 4 seconds or more, after a while, the display part

button has been pushed, the operation

UNIT

button, the indoor unit No. in the group control is displayed successively.

When pushing flashes as shown in the figure. Check that the displayed item code is [10].

• If the item code indicates other than [10], push the display, and then retry the operation from the first step. (For some time after of the remote controller cannot be accepted.)

(In a group control, the firstly displayed indoor unit No. becomes the center unit.) (* The display changes according to the indoor unit model.)

Every pushing Select an indoor unit of which setup to be changed. In this time, the position of the indoor unit of which setup to be changed can be

confirmed because the fan and the flap of the selected indoor unit work. Using , buttons of set temperature, specify the item code [**].

3 4

Using , buttons of timer time, select set data [

6 1

Description

button to erase

****

UNIT No.

R.C. No.

UNIT

SET

** **

CODE No.

UNIT No.

R.C. No.

UNIT No.

** **

R.C. No.

2 3

CODE No.

SET

Push

• To change the setup of an indoor unit other than the selected one, start operation from Procedure

• To change the setup of another setup in the selected indoor unit, start operation from Procedure

Pushing When the setup finished, push button. (The setup is determined.)

Pushing normal stop status. (For some time after the remote controller cannot be accepted.)

button. In this time, if the display changes from flashing to lighting, the setup completes.

button clears the set up contents which have been already set. In this case, retry from Procedure 2.

button deletes the display and returns the status to

button has been pushed, the operation of

7 APPLICABLE CONTROLS

Setup of outside static pressure

Be sure to set up a tap change based upon the resistance (outside 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 item code in procedure 3 .

• For the setup data of procedure 4 , select a setup

data of the outside static pressure to be set up from

Setup data

0000 0001 0003 0006

40Pa Standard (At shipment) 70Pa *1 High static pressure 1 100Pa *2 High static pressure 2 20Pa High static pressure

*1: 65Pa for Model AP0481BH, AP0561BH *2: 90Pa for Model AP0481BH, AP0561BH

Outside static pressure

the following table.

In case of remote controller-less (Group control)

For setup to the high ceiling, there is selecting method by exchanging the short plugs on the indoor microcomputer P.C. board as shown in the following table other than selecting method by standard wired remote controller (sold separately). Utilize this method for remote controller-less (Group control) case.

∗ However, when the setup to high ceiling has been once exchanged, it is required for returning it to 0000 to

change the short plug to the standard (at shipment) position and rewrite data to the setup data 0000 from the wired remote controller sold separately though setup to 0001 or 0003 are freely available.

To incorporate a filter sold separately for reference

• Select by exchange of short plugs on the indoor microcomputer P.C. board.

Short plug position

Filter sold separately

Standard filter (At shipment)

Super long life filter

High-efficiency filter (65%) High-efficiency filter (90%)

Short

CN112 CN111 CN110

Open

Set data

0000

0001

0003

• Short plug position (CN112, CN111, CN110 from the left)

Change of lighting term of filter sign

Group control

According to the installation condition, the lighting term of

the filter sign (Notification of filter cleaning) can be

changed. Follow to the basic operation procedure

(1 → 2 → 3 → 4 → 5 → 6 ).

• For the item code in Procedure 3 , specify [01].

• For the [Set data] in Procedure 4 , select the setup data

of filter sign lighting terme from the following table.

Setup data

0000 0001 0002 0003 0004

Filter sign lighting term

None 150H 2500H (At shipment from factory) 5000H 10000H

To secure better effect of heating

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

• For cabling procedure and cables of the individual line (Identical refrigerant line) system, refer to “Electric work” in this Manual.

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

Connect the indoor units by connecting the remote controller inter-unit cables 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. (No polarity)

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

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, etc. to circulate heat air near the ceiling.

Follow to the basic operation procedure

(1 → 2 → 3 → 4 → 5 → 6 ).

• For the item code in Procedure 3 , specify [06].

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

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

Setup data

0000 0001 0002 0003 0004 0005

Detection temp shift value

No shift +1°C +2°C (At shipment from factory) +3°C +4°C +5°C

0006

+6°C

8 TEST RUN

Before test operation

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

1) Using 500V-megger, check there is 1MΩ or more between the terminal block of the power supply and the earth.

If 1MΩ or less is detected, do not run the unit.

2) Check that all the valves of the outdoor unit are fully opened.

• Never push the electromagnetic contactor to carry out a forced test operation. (It is very dangerous because a protective device does not work.)

To protect the compressor at starting time, keep power-ON condition before 12 hours or more.

WARNING

How to execute test operation

• To carry out a fan operation in a single indoor unit, turn off the power once, short CN72 on P.C. board, and then turn on the power again. (Start the unit in FAN mode.) In this case, do not forget to clear short-circuit of CN72 after test operation.

• Using the remote controller, check the operation in the usual operation. For the operation procedure, refer to the attached Owner’s Manual.

A forced test operation can be executed in the following procedure under condition of thermo-OFF of room temperature. In order to prevent a serial operation, the forced test operation is released after 60 minutes and returns to the usual operation.

NOTE

Do not use a forced operation in cases other than test operation because it applies an excessive load to the air conditioner.

In case of wired remote controller

Procedure

Keep button pushed for 4 seconds or more.

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

Push button.

Using button, select the operation mode, [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 operation.

• The detection of error is performed as usual.

1, 5

Description

SET

2, 4

UNIT

TEST

After the test operation, push button to stop the operation. (Display part is same as procedure

Push button to cancel (release from) the test operation mode. ([TEST] disappears on the display part and the status returns to

a normal stop status.)

)

In case of wireless remote controller

Procedure

3 4

Description

Remove a small screw which fixes the nameplate of the receiver unit. Remove the nameplate of the sensor section by inserting a minus screwdriver, etc into the notch at the

bottom of the plate, and set the Dip switch to [TEST RUN ON]. Execute a test operation with 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.

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.

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.)

Receiver unit

Spacer

M4 × 25 screw (2 pieces)

Small screw

Notch

Nameplate

In case of abnormal test operation

• When the test operation has not normally finished, refer to the check No. and the check position in the “9 TROUBLESHOOTING”.

• If the test operation has been executed before installation of the outside duct, a protective control works resulted in stop of the air conditioner, and then an error code [P12] may be output. However it is not a trouble.

(The current limit control works in the characteristics of DC motor which is adopted in the indoor fan motor of this model.)

Carry out a test operation by setting the air volume tap to small or closing the discharge port before installation of the outside duct.

• Be sure also to stop the fan in exchange of high-performance filter or opening of the service board. After the test operation has finished, reset necessarily the leak breaker of the indoor unit.

9 TROUBLESHOOTING

Confirmation and check

When a trouble occurred in the air conditioner, the check code and the indoor unit No. appear on the display part of the remote controller.

The check code is only displayed during the operation. If the display disappears, operate the air conditioner

according to the following “Confirmation of error history” for confirmation.

Confirmation of error history

When a trouble occurred on the air conditioner, the error history can be confirmed with the following procedure. (The error history is stored in memory up to 4 errors.)

This history can be confirmed from either operating status or stop status.

Check code

SET

CODE No.

UNIT No.

R.C. No.

Indoor unit No. in which

Indoor unit No. in which an error occurred

an error occurred

UNIT

Procedure

Description

When pushing If [Service Check] is displayed, the mode enters in the error

history mode.

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

• [Check Code] is displayed in CHECK window.

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

Every pushing , buttons, the error history stored in the memory is displayed in order. The numbers in CODE No. indicates CODE No. [01] (Latest) → [04] (Oldest).

CAUTION

Do not push

After confirmation, push button to return to the usual display.

and buttons simultaneously for 4 seconds or more, the right display appears.

SET

UNIT No.

R.C. No.

button because all the error history of the indoor unit will be deleted.

CODE No.

Check method

On the remote controller (Main 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 selfdiagnosis 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 “Main remote controller display” in the list.

• In case of check from outdoor unit: See “Outdoor 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 wireless remote controller: See “Sensor block display of receiving unit” in the list.

AI-NET : Artificial Intelligence. IPDU : Intelligent Power Drive Unit

¡ : Lighting,

ALT. : Flashing is alternately when there are two flashing LED.

: Flashing, l : Goes off

SIM : Simultaneous flashing when there are two flashing LED.

Wireless remote controller

Sensor block display

of receiving unit

Operation

Timer Ready Flash

¤ ¤ ¤

ll ll ll

¤ ¤

¤ ¤ ¤

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

Remote controller transmission error Communication error between indoor and

remote controller (Detected at indoor side) Communication circuit error between indoor/

outdoor (Detected at indoor side)

Decrease of No. of indoor units

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

Duplicated indoor addresses Duplicated main remote controllers Communication error between indoor MCU

Automatic address start error

Indoor is nothing during automatic addressing Capacity over / No. of connected indoor units Communication error between indoor units Outdoor header units quantity error

Other line connected during automatic address

Sending error in communication between outdoor units

Duplicated follower outdoor addresses Decrease of No. of connected outdoor units Follower outdoor unit error

IPDU communication error

Check code name

Judging device

Remote controller

Indoor

I/F

Indoor / I/F

Remote controller

Indoor

I/F

I/F I/F

Indoor

I/F

I/F I/F I/F I/F

I/F

Main

remote

controller

display

E01

E02 E03

E04

E06

—

E08 E09 E10

E12

E15 E16 E18 E19

E20

E23 E25 E26 E28

E31

Terminology

Check code

Outdoor 7-segment display

Auxiliary code

——

—— ——

——

No. of indoor units in which

E06

sensor has been normally

received E07 — E08 Duplicated indoor addresses

—— ——

01: Indoor/Outdoor E12

E15 — E16

E19

E20

E23 — E25 — E26 E28 Detected outdoor unit number

E31 04: Fan IPDU error

communication

02: Communication between

outdoor units

00: Capacity over

~:No. of connected units

——

00: Header is nothing

02: Two or more header units

01: Outdoor of other line

connected

02: Indoor of other line

connected

No. of outdoor units which

received signal normally

01: IPDU1 error

02: IPDU2 error

03: IPDU1, 2 error

05: IPDU + Fan IPDU error

06: IPDU2 + Fan IPDU error

07: All IPDU error

AI-NET central

control display

—

— 97

— 96

42 89

97, 99

15 15 15 d2

9 TROUBLESHOOTING

Main

remote

controller

display

F01 F02 F03 F04 F05 F06 F07 F08 F10 F12

F13 F15

F16 F23 F24 F29 F31

H01

H02

H03 H04

H06 H07

H08

H14

H16

L03 L04

L05

L06

L07 L08 L09 L10 L20 L28

L29

L30

—

Check code

Outdoor 7-segment display

Auxiliary code

—— ——

—— F04 — F05 — F06 — F07 — F08 —

—— F12 —

01: Comp. 1 side

F13

02: Comp. 2 side F15 — F16 — F23 — F24 —

——

F31 —

01: Comp. 1 side

H01

02: Comp. 2 side

01: Comp. 1 side

H02

02: Comp. 2 side

01: Comp. 1 side

H03

02: Comp. 2 side H04 — H06 — H07 —

01: TK1 sensor error

02: TK2 sensor error

H08

03: TK3 sensor error

04: TK4 sensor error H14 —

01: TK1 oil circuit system error

02: TK2 oil circuit system error

H16

03: TK3 oil circuit system error

04: TK4 oil circuit system error

——

L04 —

——

L06 No. of indoor units with priority

——

L08 —

—— L10 — L20 — L28 —

01: IPDU1 error 02: IPDU2 error 03: IPDU3 error

L29 04: Fan IPDU error

05: IPDU1 + Fan IPDU error 06: IPDU2 + Fan IPDU error

07: All IPDU error L30 Detected indoor address L31 —

AI-NET central

control display

0d 93 19

18 18

1b OC A2

12 1C

—

Wireless remote controller

Sensor block display

of receiving unit

Operation

Timer Ready Flash

ALT

¤ ¤ ¤

l l l

¡ ¡ ¡

—

l l l

¡ ¡ ¡ ¡ ¡

¡ ¡ ¡ ¡

l l l

¤ ¤

¤ ¤ ¤ ¤ ¤ ¤

¤ ¤

ALT ALT ALT ALT ALT ALT ALT ALT ALT

ALT ALT

ALT ALT ALT SIM SIM

SIM SIM

SIM

SIM SIM SIM SIM SIM SIM

SIM

¤¤ ¤¤ ¤¤ ¤¤ ¤¤ ¤¤ ¤¤ ¤¤ ¤¤ ¤¤

¤¤ ¤¤

¤¤ ¤¤ ¤¤ ¤¤ ¤¤

l l l

¤ ¤

¤ ¤ ¤ ¤ ¤ ¤

¤ ¤

Check code name

Indoor TCJ sensor error Indoor TC2 sensor error Indoor TC1 sensor error TD1 sensor error TD2 sensor error TE1 sensor error TL sensor error TO sensor error Indoor TA sensor error TS1 sensor error

TH sensor error Outdoor temp. sensor miscabling (TE, TL)

Outdoor pressure sensor miscabling (Pd, Ps) Ps sensor error Pd sensor error Indoor other error Indoor EEPROM error

Compressor break down Magnet switch error

Overcurrent relay operation Compressor trouble (lock)

Current detect circuit system error Comp 1 case thermo operation

Low pressure protective operation Oil level down detective protection

Oil level detective temp sensor error

Comp 2 case thermo operation Oil level detective circuit error

Magnet switch error Overcurrent relay operation

Indoor center unit duplicated Outdoor line address duplicated Duplicated indoor units with priority

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

(Displayed in unit other than indoor unit with priority)

Group line in individual indoor unit Indoor group/Address unset Indoor capacity unset Outdoor capacity unset Duplicated central control addresses Over No. of connected outdoor units

No. of IPDU error

Indoor outside interlock Extended I/C error

Judging device

Indoor Indoor Indoor

I/F I/F I/F I/F I/F

Indoor

I/F

IPDU

I/F I/F I/F I/F

Indoor

I/F

IPDU

MG-SW

Overcurrent relay

IPDU IPDU

I/F I/F I/F

I/F

I/F I/F

MG-SW

Overcurrent relay

Indoor

I/F I/F

I/F

Indoor

Indoor, I/F

Indoor

I/F

AI-NET, Indoor

I/F

Indoor

I/F

Main

remote

controller

display

P01 P03

P04

P05

P07 P10

P12 P13

P15 P17

P19 P20

P22

P26

P29

P31

— — —

Check code

Outdoor 7-segment display

Auxiliary code

——

P03 —

01: Comp. 1 side

P04

02: Comp. 2 side 01: Phase-missing detection

P05

02: Phase error 01: Comp. 1 side

P07

02: Comp. 2 side

P10 Detected indoor address

——

P13 —

01: TS condition

P15

02: TD condition P17 — P19 Detected outdoor unit number P20 —

0 : IGBT short

: Fan motor position

detective circuit error

: Fan motor trouble

P22

P26

P29

P31 —

—— —— ——

: TH sensor temp. error

(Heat sink overheat)

: TH sensor error

: Vdc output error

01: Comp. 1 side

02: Comp. 2 side

01: Comp. 1 side

02: Comp. 2 side

AI-NET central

control display

11 47

47 b7

97 99

Wireless remote controller

Sensor block display

of receiving unit

Operation

Timer Ready Flash

¤¤

By alarm device ALT

— —

ALT ALT

ALT

ALT ALT ALT

ALT

Check code name

Indoor fan motor error Discharge temp. TD1 error

High-pressure SW system operation

Phase-missing detection /Phase error

Heat sink overheat error Indoor overflow error

Indoor fan motor error Outdoor liquid back detection error

Gas leak detection Discharge temp. TD2 error

4-way valve inverse error High-pressure protective operation

Outdoor fan IPDU error

G-TR short protection error

Comp position detective circuit system error Other indoor unit error

(Group terminal unit error) Error in indoor group AI-NET communication system error Duplicated network adaptors

Judging device

Indoor

I/F

IPDU

I/F

IPDU, I/F

Indoor Indoor

I/F I/F I/F

I/F I/F

IPDU

Indoor

AI-NET AI-NET AI-NET

Error detected by TCC-LINK central control device

Central

control device

indication

C05

C06

C12

P30

Check code

Outdoor 7-segment display

Auxiliary code

——

Differs according to error contents of unit with occurrence of alarm

——

AI-NET central

control display

—

Wireless remote controller

Sensor block display

of receiving unit

Operation

Timer Ready Flash

(L20 is displayed.)

Terminology

TCC-LINK : TOSHIBA Carrier Communication Link.

Check code name

—

Sending error in TCC-LINK central control device

Receiving error in TCC-LINK central control device

Batch alarm of general-purpose equipment control interface

Group control branching unit error Duplicated central control addresses

Judging device

TCC-LINK

General-purpose equipment

I/F

TCC-LINK

9 TROUBLESHOOTING

New check code

1. Difference between the new check code and the current system

The displaying method of the check code changes in this model and after.

Used characters Characteristics of

code classification

Block display

Check code in current system

Hexadecimal notation, 2 digits

Few classification of communication/incorrect setup system

Indoor P.C. board, Outdoor P.C. board, Cycle, Communication

Alphabet + Decimal notation, 2 digits

Many classification of communication/incorrect setup system

Communication/Incorrect setup (4 ways), Indoor protection, Outdoor protection, Sensor, Compressor protection, etc.

New check code



• [ ] goes on.

• [UNIT No.] + Check code + Operation lamp (Green) flash.

• Block display of combination of [ ] [ ] [ ]

• Unit No. and check code are displayed.

• In a case of error with auxiliary code, check code and auxiliary code are displayed alternately.

         

→

Display

A C E F H J L P

Classification

Unused Central control system error Communication system error Each sensor error (Failure) Compressor protective system error Unused Setup error, Other errors Protective device operation

2. Special mention

1) If this model is connected to AI-NET by network adaptor, the different check codes are displayed on the main remote controller (New check code display on new remote controller) and AI-NET central control remote controller (Current system check code display on the current system central control remote controller).

2) The check code is displayed only while the air conditioner is operating (Remote controller start button ON). When the air conditioner stops and the error is cleared, the check code display on the remote controller

also disappears. However, if the error continues after stop of the operation, the check code is immediately displayed with restarting.

AI-NET central control

remote controller

Network

adaptor

AI-NET WORK bus

Indoor unit

F10

Main

remote controller

10 MAINTENANCE

1, 2

UNIT

CODE No.

SET

For maintenance, be sure to turn off the main power switch.

CAUTION

Do not handle the buttons with wet hands; otherwise an electric shock may be caused.

Cleaning of air filter

1 If is displayed on the remote controller,

contact to service on maintenance professional to cleaning the air filter.

2 Clogging of the air filter decreases cooling/

heating efficiency.

3 After cleaning, push .

display disappears.

[Concealed Duct Type]

1 Take out the air filter.

• Push the extrusion of the air filter to inside and pull out it to take out the air filter.

2 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.

3 Mount the air filter. 4 Push .

• display disappears.

Air filter

WARNINGS ON REFRIGERANT LEAKA GE

Check of Concentration Limit

The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its concentration will not exceed a set limit.

The refrigerant R410A which is used in the air conditioner is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws to be imposed which protect the ozone layer. However, since it contains more than air, it poses the risk of suffocation if its concentration should rise excessively. Suffocation from leakage of R410A is almost non-existent. With the recent increase in the number of high concentration buildings, however, the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space, individual control, energy conservation by curtailing heat and carrying power etc. Most importantly, the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual air conditioners. If a single unit of the multi conditioner system is to be installed in a small room, select a suitable model and installation procedure so that if the refrigerant accidentally leaks out, its concentration does not reach the limit (and in the event of an emergency, measures can be made before injury can occur). In a room where the concentration may exceed the limit, create an opening with adjacent rooms, or install mechanical ventilation combined with a gas leak detection device. The concentration is as given below.

Total amount of refrigerant (kg)

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

≤ Concentration limit (kg/m³)

The concentration limit of R410A which is used in multi air conditioners is 0.3kg/m³.

NOTE 1 :

If there are 2 or more refrigerating systems in a single refrigerating device, the amounts of refrigerant should be as charged in each independent device.

e.g., charged amount (10kg)

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

For the amount of charge in this example:

The possible amount of leaked refrigerant gas in rooms A, B and C is 10kg. The possible amount of leaked refrigerant gas in rooms D, E and F is 15kg.

Outdoor unit

e.g., charged amount (15kg)

Indoor unit

Important

NOTE 2 :

The standards for minimum room volume are as follows. (1) No partition (shaded portion)

(2) When there is an effective opening with the adjacent

room for ventilation of leaking refrigerant gas (opening without a door, or an opening 0.15% or larger than the respective floor spaces at the top or bottom of the door).

Outdoor unit

Refrigerant piping

Indoor unit

(3) If an indoor unit is installed in each partitioned room

and the refrigerant piping is interconnected, the smallest room of course becomes the object. But when a mechanical ventilation is installed interlocked with a gas leakage detector in the smallest room where the density limit is exceeded, the volume of the next smallest room becomes the object.

Refrigerant piping

Outdoor unit

Very small room

Small room

Mechanical ventilation device - Gas leak detector

Medium room

Large room

NOTE 3 :

The minimum indoor floor area compared with the amount of refrigerant is roughly as follows: (When the ceiling is 2.7m high)

Range below the

m²

density limit of 0.3 kg/m³

(countermeasures not needed)

25 20 15 10

Min. indoor floor area

10 20 30

Total amount of refrigerant

Range above the density limit of 0.3 kg/m³ (countermeasures needed)

Indoor unit

CONFIRMATION OF INDOOR UNIT SETUP

Prior to delivery to the customers, check the address and setup of the indoor unit, which has been installed in this time and fill the check sheet (Table below). Deta 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. Be sure to 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 sheet.) * In case of a single system, it is unnecessary to enter the indoor address. (Item code: 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 sheet.) * In case of replacement of short plugs on indoor microcomputer P.C. board, setup is automatically changed.

High ceiling setup High ceiling setup High ceiling setup High ceiling setup

o NO CHANGE o NO CHANGE o NO CHANGE o NO CHANGE o STANDARD [0000] o STANDARD [0000] o STANDARD [0000] o STANDARD [0000] o HIGH CEILING 1 [0001] o HIGH CEILING 1 [0001] o HIGH CEILING 1 [0001] o HIGH CEILING 1 [0001] o HIGH CEILING 3 [0003] o HIGH CEILING 3 [0003] o HIGH CEILING 3 [0003] o HIGH CEILING 3 [0003]

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 sheet.)

o NO CHANGE o NO CHANGE o NO CHANGE o NO CHANGE o NONE [0000] o NONE [0000] o NONE [0000] o NONE [0000] o 150H [0001] o 150H [0001] o 150H [0001] o 150H [0001] o 2500H [0002] o 2500H [0002] o 2500H [0002] o 2500H [0002] o 5000H [0003] o 5000H [0003] o 5000H [0003] o 5000H [0003] o 10000H [0004] o 10000H [0004] o 10000H [0004] o 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 control in this sheet.)

o NO CHANGE o NO CHANGE o NO CHANGE o NO CHANGE o NO SHIFT [0000] o NO SHIFT [0000] o NO SHIFT [0000] o NO SHIFT [0000] o +1°C [0001] o +1°C [0001] o +1°C [0001] o +1°C [0001] o +2°C [0002] o +2°C [0002] o +2°C [0002] o +2°C [0002] o +3°C [0003] o +3°C [0003] o +3°C [0003] o +3°C [0003] o +4°C [0004] o +4°C [0004] o +4°C [0004] o +4°C [0004] o +5°C [0005] o +5°C [0005] o +5°C [0005] o +5°C [0005] o +6°C [0006] o +6°C [0006] o +6°C [0006] o +6°C [0006]

Incorporation of parts sold separately Incorporation of parts sold separately Incorporation of parts sold separately Incorporation of parts sold separately

Have you incorporated the following parts sold separately? If incorporated, fill check mark [×] in each [ITEM]. (When incorporating, the setup change is necessary in some cases. For setup change method, refer to Installation Manual attached to each part sold separately.)

o Standard panel o Standard panel o Standard panel o Standard panel

o Super long life filter o Super long life filter o Super long life filter o Super long life filter o Others ( ) o Others ( ) o Others ( ) o Others ( )

o Others ( ) o Others ( ) o Others ( ) o Others ( )

(Item code [5d]) (Item code [5d]) (Item code [5d]) (Item code [5d])

Filter sign lighting time Filter sign lighting time Filter sign lighting time Filter sign lighting time

(Item code [01]) (Item code [01]) (Item code [01]) (Item code [01])

Detected temp. shift value setup Detected temp. shift value setup Detected temp. shift value setup Detected temp. shift value setup

(Item code [06]) (Item code [06]) (Item code [06]) (Item code [06])

Panel Panel Panel Panel

Filter Filter Filter Filter

EH99834401-

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Toshiba MMD-AP0091BH, MMD-AP0071BH, MMD-AP0361BH, MMD-AP0481BH, MMD-AP0121BH INSTALLATION MANUAL

Specifications and Main Features

Frequently Asked Questions

User Manual

Setup of outside static pressure