Toshiba MMU-AP0181MH2UL, MMU-AP0121MH2UL, MMU-AP0071MH2UL, MMU-AP0091MH2UL, MMU-AP0151MH2UL User Manual

AIR CONDITIONER (MULTI TYPE)

Installation Manual

Indoor Unit

Model name:

Compact 4-way Cassette type

MMU-AP0071MH2UL MMU-AP0091MH2UL MMU-AP0121MH2UL MMU-AP0151MH2UL MMU-AP0181MH2UL

For commercial use

Pour usage commercial

Installation Manual Air conditioner

Manuel d’installation Climatiseur

(Multi type) 1

(Type multi) 18

English

Français

–1–

Please read this manual thoroughly before installation work and install the products correctly.

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

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

ADOPTION OF NEW REFRIGERANT

This Air Conditioner uses R410A an environmentally friendly refrigerant.

Contents

1 Accessory parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 Precautions for safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3 Selection of installation place. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

5 Drain piping work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

6 Refrigerant piping and evacuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

7 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

8 Applicable controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

9 Test run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1 Accessory parts

 Accessory parts

Part name Q’ty Shape Usage

Installation Manual 1 This manual (Hand over to customers)

Heat insulating pipe 2 For heat insulation of pipe connecting section

Installation pattern 1

Installation gauge 2 For positioning of ceiling position

Pattern fixing screw 4 0.2” (5 mm) × 0.6” (16 mm) For attach the installation pattern

Washer 8 For hanging-down unit

Hose band 1 For connecting drain pipe

Heat insulator 1 For heat insulation of drain connecting section

Heat insulator A 1 For sealing of control wire connecting port

Flexible hose 1 For adjusting center of drain pipe

—

 Separate sold parts

• The Ceiling panel and remote control are sold separately. For the installation of these products, follow the Installation Manuals supplied with them.

For confirmation of ceiling opening and indoor unit position

1-EN 2-EN

2 Precautions for safety

WARNING

CAUTION

Installing, starting up, and servicing air--conditioning equipment can be hazardous due to system pressures, electrical components, and equipment location (roofs, elevated structures, etc.). Only trained, qualified installers and service mechanics should install, start--up, and service this equipment. Untrained personnel can perform basic maintenance functions such as cleaning heat exchanger. All other operations should be performed by trained service personnel. Before working on the equipment, observe precautions in the literature and on tags, stickers, and labels attached to the equipment. Follow all safety codes.Wear safety glasses and work gloves. Keep quenching cloth and fire extinguisher nearby during brazing. Use care in handling, rigging, and setting bulky equipment. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements. Recognize safety information. This is the safety--alert symbol . When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.Understand these signal words: DANGER, WARNING, and CAUTION. These words are used with the safety--alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation. The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual.

• Only a qualified installer or service person is allowed to do installation work.

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

• Do not use any refrigerant different from the one specified for complement or replacement.

Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may result in a failure or explosion of the product or an injury to your body.

• Connect ground wire. (grounding work)

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

• Turn off all the circuit breaker before attempting any electrical work.

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 overpressurized, which may cause a burst or injury.

• When moving the air conditioner for the installation into another place, do not 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. Use

an exclusive power supply for the air conditioner at the rated voltage.

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

• Use the specified wires for wiring connect the terminals. Securely fix them 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.

• 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 overpressurized, which may cause a burst or injury.

• 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 insta llation work, be sure that water, dust, former refrigerant, or refrigerating o il 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.

• 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 during the installation work to avoid injury.

3-EN 4-EN

–2–

–3–

WARNING

CAUTION

REQUIREMENT

Obstacle

39.4” (1000) or more

39.4” (1000)

or more

11.1” (283) or more

0.6” (15) or more

7.9” (200)

Check port

17.7” (450)

3 Selection of installation place

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

If the strength is not enough, the unit may fall down resulting in injury.

• Install the air conditioner at a height 8’ (2.4 m) 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.

• Do not install in a location where flammable gas may leaks are possible.

If the gas leak and accumulate around the unit, it may ignite and cause a fire.

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). (The unit should 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 (turbo fan) in the indoor unit may reduce the performance, generate mist or dew drop, or deform or damage resin parts.)

• Places where iron or other metal dust is present. If iron or other metal dust adheres to or collects on the interior of the air conditioner, it may spontaneously combust and start a fire.

• 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 neighbor house. (Outdoor unit)

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

• Place with poor ventilation. (Before air duct work, check whether value of fan speed, static pressure and duct resistance are correct.)

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

• Place where organic solvent is used.

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

• Place where special spray is used frequently.

 Installation space

Ensure there is sufficient space to install the unit and to perform maintenance work as and when required. Keep

0.6” (15 mm) or more for clearance between top plate of the indoor unit and the ceiling surface.

unit: in (mm)

 Selection of installation place

Continual operation of the indoor unit under high-humidity conditions as described below, dew may condense and water may drop. Especially, high-humidity atmosphere (dew point temperature: 73.4 °F (23 °C) or more) may generate dew inside the ceiling.

1. Unit is installed inside the ceiling with slated roof.

2. Unit is installed at a location using inside of the ceiling as fresh air take-in path.

3. Kitchen

Advice

• Set a service check opening panel at right side of the unit (size: 17.7" × 17.7" (450 × 450 mm) or more) for piping, maintenance, and servicing.

• If installing a unit at such place, put insulating material (glass wool, etc.) additionally on all the positions of the indoor unit which come to contact with high-humidity atmosphere.

When the humidity inside the ceiling seems to be higher than 80 %, attach a heat insulator to the side (top) surface of the indoor unit. (Use a heat insulator that is 0.4" (10 mm) or more thick.)

5-EN 6-EN

 Ceiling height

REQUIREMENT

WARNING

REQUIREMENT

CAUTION

OK NO GOOD

Model MMU- Installable ceiling height

AP007 to AP012 type Up to 8’10” (2.7 m) AP015 to AP018 type Up to 11’6” (3.5 m)

When the height of the ceiling exceeds the distance of the item Standard / 4-way in below table, the warm air is difficult to reach the floor. It is necessary to change the setup value of the high ceiling setting or discharge direction.

▼ Height list of ceiling possible to be installed

Indoor unit Capacity type AP007 to AP012 type AP015 type AP018 type Setup of high ceiling

Discharge direction 4-way 4-way 4-way Setup data Standard (factory default) 8’10” (2.7 m) 9’6” (2.9 m) 10’6” (3.2 m) 0000 High ceiling (2) — 10’6” (3.2 m) 11’2” (3.4 m) 0002 High ceiling (3) — 11’6” (3.5 m) 11’6” (3.5 m) 0003

• When high ceiling (2) or (3) is used with 4-way blowing, a draft is easily recognized due to drop of discharge temperature.

The lighting time of the filter sign (notification of filter cleaning) on the remote control can be changed according to installation conditions. When it is difficult to obtain satisfactory heating due to location place of the indoor unit or the structure of the room, the detection temperature of heating can be raised. Refer to “8. Applicable controls” in this manual for the setting procedure.

Unit : ft (m)

4 Installation

The installation of the air conditioning unit must be positioned in a location that can sufficiently support its weight and give protection against adverse environmental conditions. Failure to do so may result in unit damage and possible human injury. Any incomplete installation may also cause possible risk of human injury.

• Unpack the package, take out the product and then place it on the floor so that the same surface directs underneath as it is placed in the package. If the both sides are turned over, a deformation of mounting metal of the ceiling panel which is sold separately may be caused. Accordingly the product may be damaged and the installation becomes impossible in some cases.

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, use buffering cloth or other soft cloth 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).

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

Do not tear off the tape adhered to the cabinet; otherwise vibration is caused from the cabinet.

7-EN 8-EN

–4–

–5–

23.4” to 26”(595 to 660) Ceiling open dimension

5.9”(149)

22.6”(575) Unit external

dimension

Bottom face of ceiling

27.6”(700) Panel external dimension

Electrical control box

Bottom face of ceiling

23.4” to 26”(595 to 660) Ceiling open dimension

20.7”(525) Hanging bolt pitch

12.6”(320.5)

7.0”(177)

20.1”(510) Hanging bolt pitch

23.4” to 26”(595 to 660) Ceiling open dimension

27.6”(700) Panel external dimension

22.6”(575) Unit external dimension

Refrigerant pipe (Liquid) Ø1/4”(6.4)

Refrigerant pipe (Gas) AP015, AP018: Ø1/2”(12.7) AP007 to AP012: Ø3/8”(9.5)

Drain pipe connecting port

Hanging bolt 3/8”(10) local arrange

10.6”(268) 1.1”(27)

8.7”(220.5)

1.7”(42)3.8”(97.5)

7.5”(190.5)

2.1” (53)

Wiring connection port (for control wiring)

Ceiling panel

Bottom face of ceiling

Hole for power supply cable

Knockout for Auxiliary fresh air flange For Ø 3.9”(100)

Bottom face of ceiling

2.5”

(64)

1.1”

(29)

5.5”(142) 2.5” (64)

14.5”(368.5)

Indoor unit

Installation pattern (Attached)

0.2” (5 mm) × 0.6” (16 mm) screws (Attached)

These screws are exclusive to the installation pattern. When installing the ceiling panel, the other exclusive screws attached to the ceiling panel (sold separately) are used.

Cut off the installation pattern along slit of the main unit.

Rubber

Anchor bolt

(Blade type

bracket)

(Slide type

bracket)

(Pipe hanging

anchor bolt)

Hanging bolt

Hanging bolt Support angle

 External view Unit: in (mm)

 Opening a ceiling and

installation of hanging bolts

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

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

• The dimensions of the ceiling opening and hanging bolt pitches are given in the outline drawing and the attached installation pattern.

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

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

Hanging bolt 3/8” (M10) 4 pieces

Nut 3/8” (M10) 12 pieces

Using the installation pattern (accessory)

The installation pattern is provided inside the packaging cap.

Use the installation pattern positioning a ceiling opening and hanging bolts.

Use the installation pattern to position the ceiling opening when a ceiling is hanged.

• After the hanging bolts have been installed, install the indoor unit.

• To use the supplied pattern attach it to the indoor unit using the supplied fixing screws (0.2”(5 mm) ×

0.6”(16 mm) 4 pcs.). (Screw pattern to the ceiling panel hanging brackets of the indoor unit)

• Before hanging a ceiling, open the ceiling along the outside dimensions of the installation pattern.

Treatment of ceiling

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

1. Cut and remove the ceiling foundation.

2. Reinforce the cut surface of ceiling foundation, and add ceiling foundation for fixing the end of ceiling board.

Installation of hanging bolt

Use 3/8” (M10) hanging bolts (4 pcs, locally procured). 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.

Steel flame structure

Use existing angles or install new support angles.

Existing concrete slab

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

9-EN 10-EN

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