Toshiba MMY-MAP1446FT9P-UL, MMY-MAP0726FT9P-UL, MMY-MAP1686FT9P-UL, MMY-MAP0966FT9P-UL, MMY-MAP1206FT9P-UL User Manual

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AIR CONDITIONER (MULTI TYPE)

Installation Manual

1122001101

Outdoor Unit

Model name:

MMY-MAP0726FT9P-UL MMY-MAP0966FT9P-UL MMY-MAP1206FT9P-UL MMY-MAP1446FT9P-UL MMY-MAP1686FT9P-UL

For OUTDOOR USE only

Pour une UTILISATION EN EXTÉRIEUR

uniquement

Installation Manual 1

Manuel d’installation 32

English

Français

ADOPTION OF NEW REFRIGERANT

This Air Conditioner uses R410A an environmentally friendly refrigerant.

Contents

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

2 Accessory parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3 Installation of R410 air conditioner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4 Selection of installation place . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5 Carrying in the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

6 Installation of the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

7 Refrigerant piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

8 Electric wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

9 Address setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

10 Test run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

– 1 –

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 indoor unit air filter. 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. 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 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.

. When you see this symbol on the unit and in instructions or

11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

1-EN 2-EN

1 Precautions for safety

• When the air conditioner has been installed or relocated, follow the instructions in the Installation Manual and purge the air completely so that no gases other than the refrigerant will be mixed in the refrigerating cycle. Failure to purge the air completely may cause the air conditioner to malfunction.

• Nitrogen gas must be used for the airtight test.

• THIS AIR CONDITIONER USES THE ENVIRONMENTALLY FRIENDLY HFC REFRIGERANT (R410A) WHICH DOES

NOT DESTROY OZONE LAYER.

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

WARNING

General

• Carefully read Owner’s Manual before starting the air conditioner. There are many important things to keep in mind for daily operation.

• Ask for installation to be performed by the dealer or a professional. Only a qualiﬁ ed installer is able to install an air conditioner. If a non-qualiﬁ ed person installs an air conditioner, it may result in problems such as ﬁ re, electric shock, injury, water leakage, noise and vibration.

• Do not use any refrigerant different from the one speciﬁ ed for complement or replacement. Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may result in a failure or explosion of the product or an injury to your body.

• Before opening the service panel of the outdoor unit, set the circuit breaker to the OFF position. Failure to set the circuit breaker to the OFF position may result in electric shocks through contact with the interior parts.

• Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breakers for both the indoor and outdoor units to the OFF position. Otherwise, electric shock may result.

• Wear protective gloves and safety work clothing during installation, servicing and removal.

• Do not touch the aluminium ﬁ n of the outdoor unit. You may injure yourself if you do so. If the ﬁ n must be touched for some reason, ﬁ rst put on protective gloves and safety work clothing, and then proceed.

• Do not climb onto or place objects on top of the outdoor unit. You may fall or the objects may fall off of the outdoor unit and result in injury.

• Before cleaning the ﬁ lter or other parts of the outdoor unit, set the circuit breaker to OFF without fail, and place a “Work in progress” sign near the circuit breaker before proceeding with the work.

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

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

Selection of installation location

• Do not install in a location where ﬂ ammable gas leaks are possible. If the gas should leak and accumulate around the unit, it may ignite and cause a ﬁ re.

• During transporting the air conditioner, wear shoes with protective toe caps, protective gloves, and other protective clothing.

• To transport the air conditioner, do not take hold of the bands around the packing carton. You may injure yourself if the bands should break.

• Places where the operation sound of the outdoor unit may cause a disturbance. (Especially at the boundary line with a neighbour, install the air conditioner while considering the noise.)

Installation

• The designated bolts (M12) and nuts (M12) for securing the outdoor unit must be used when installing the unit.

• Install the outdoor unit property in a location that is durable enough to support the weight of the outdoor unit. Insufﬁ cient durability may cause the outdoor unit to fall, which may result in injury.

• Install the unit in the prescribed manner for protection against strong wind and earthquake. Incorrect installation may result in the unit falling down, or other accidents.

• Fix the screws back which have been removed for installation or other purposes.

Refrigerant piping

• Install the refrigerant pipe securely during the installation work before operating the air conditioner. If the compressor is operated with the valve open and without refrigerant pipe, the compressor sucks air and the refrigeration cycles is over pressurized, which may cause a injury.

• Tighten the ﬂ are nut with a torque wrench in the speciﬁ ed manner. Excessive tighten of the ﬂ are nut may cause a crack in the ﬂ are nut after a long period, which may result in refrigerant leakage.

• Ventilate the air if the refrigerant gas leaks during installation. If the leaked refrigerant gas comes into contact with ﬁ re, toxic gas may be produced.

• Nitrogen gas must be used for the airtight test.

Electrical wiring

• Only a certiﬁ ed installer or qualiﬁ ed service person is allowed to carry out the electrical work of the air conditioner.

• When connecting the electrical wires, repairing the electrical parts or undertaking other electrical jobs, wear gloves to provide protection for electricians and from heat, insulating shoes and clothing to provide protection from electric shocks. Failure to wear this protective gear may result in electric shocks.

• When executing address setting, test run, or troubleshooting through the checking window on the electric parts box, put on insulated heat-proof gloves, insulated shoes and other clothing to provide protection from electric shock. Otherwise you may receive an electric shock.

• Use wiring that meets the speciﬁ cations in the Installation Manual, NEC and the local codes.

• Check that the product is properly grounded.

• Do not connect the ground line to a gas pipe, water pipe, lightning conductor, or a telephone ground line.

• After completing the repair or relocation work, check that the ground wires are connected properly.

• Install a circuit breaker that meets the speciﬁ cations in the installation manual, NEC and local codes.

• Under no circumstances must the power cable be extended. Connection trouble in the places where the cable is extended may give rise to smoking and/or a ﬁ re.

• Do not supply power from the power terminal block equipped on the outdoor unit to another outdoor unit. Capacity overﬂ ow may occur on the terminal block and may result in ﬁ re.

• Each outdoor unit should have its own power supply.

Test run

• Before operating the air conditioner after having completed the work, check that the electrical parts box cover of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker to the ON position. You may receive an electric shock if the power is turned on without ﬁ rst conducting these checks.

• If there is any kind of trouble (such as when a check code display has appeared, there is a smell of burning, abnormal sounds are heard, the air conditioner fails to cool or heat or water is leaking) has occurred in the air conditioner, do not touch the air conditioner yourself but set the circuit breaker to the OFF position, and contact a qualiﬁ ed service person. Take steps to ensure that the power will not be turned on (by marking “out of service” near the circuit breaker, for instance) until qualiﬁ ed service person arrives. Continuing to use the air conditioner in the trouble status may cause mechanical problems to escalate or result in electric shocks or other failure.

• Upon completion of the installation work, check for refrigerant leaks and check the insulation resistance and water drainage. Then conduct a test run to check that the air conditioner is operating properly.

Explanations given to user

• Upon completion of the installation work, tell the user where the circuit breaker is located. If the user does not know where the circuit breaker is, he or she will not be able to turn it off in the event that trouble has occurred in the air conditioner.

• If the fan grille is damaged, do not approach the outdoor unit but set the circuit breaker to the OFF position, and contact a qualiﬁ ed service person to have the repairs done. Do not set the circuit breaker to the ON position until the repairs are completed.

• After the installation work, follow the Owner’s Manual to explain to the customer how to use and maintain the unit.

Relocation

• Only a certiﬁ ed installer or service person is allowed to relocate the air conditioner.

• When the pump-down work is carried out shut down the compressor before disconnecting the refrigerant pipe. Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating will cause air or other gas to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level, and possibly resulting in rupture, injury or other trouble.

•

Do not recover the refrigerant into the outdoor unit. Use a refrigerant recovery machine to recover the refrigerant after moving or repairing. It is impossible to recover the refrigerant into the outdoor unit. Refrigerant recovery into the outdoor unit may result in serious accidents such as explosion of the unit, injury or other accidents.

CAUTION

New Refrigerant Air Conditioner Installation

•

THIS AIR CONDITIONER USES THE ENVIRONMENTALLY FRIENDLY 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.

•

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

– 2 –

4-EN3-EN

– 3 –

• To prevent mixing of refrigerant or refrigerating oil, the size of the charge port of the main unit or connecting section of the installation tool differs to that of an air conditioner for the former refrigerant. Accordingly, exclusive tools are required for the new refrigerant (R410A) as shown below.

• For connecting pipes, use new and clean piping materials so that water or dust does not enter.

2 Accessory parts

Part name

Owner’s Manual 1 1 1 1 1 –

Installation Manual 1 1 1 1 1 – This manual for installer. Attached pipe

(Ø7/8" both forward and downward)

Attached pipe (Ø1 1/8" both forward and downward)

Attached pipe (Ø3/4" both forward and downward)

Attached pipe (Ø7/8" both forward and downward)

Attached pipe (Ø1/2" for draw-out forward)

Attached pipe (Ø1/2" for draw-out downward)

Attached pipe (Ø5/8" for draw-out forward)

Attached pipe (Ø5/8" for draw-out downward)

Attached pipe (Ø3/4" for draw-out forward)

Attached pipe (Ø3/4" for draw-out downward)

MAP072 MAP096 MAP120 MAP144 MAP168

11–––

––111

1––––

–11––

–––11

111––

–––1–

––––1

Q’ty

Shape Usage

(Be sure to hand it to the customers.)

Suction-side gas pipe Ø1"→Ø7/8" pipe fitting

Suction-side gas pipe Ø1"→Ø1 1/8" pipe fitting

Discharge-side gas pipe Ø5/8"→Ø3/4" pipe fitting * Flare the connector on the

outdoor unit for installation.

Discharge-side gas pipe * Flare the connector on the

outdoor unit for installation.

Discharge-side gas pipe Ø3/4"→Ø7/8" pipe fitting * Flare the connector on the

outdoor unit for installation.

Liquid pipe * Flare the connector on the

outdoor unit for installation.

Liquid pipe * Flare the connector on the

outdoor unit for installation.

Liquid pipe Ø5/8"→Ø3/4" pipe fitting * Flare the connector on the

outdoor unit for installation.

3 Installation of R410 air conditioner

This air conditioner adopts the HFC refrigerant (R410A) which does not deplete the ozone layer.

• R410A refrigerant is vulnerable to impurities such as water, oxidizing membranes, or oils because the pressure of R410A refrigerant is higher than that of the former refrigerant by approximately 1.6 times. As well as the adoption of the new refrigerant, the refrigerating oil has been also changed. Therefore, pay attention so that water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle of the new refrigerant air conditioner during installation.

• For connecting pipes, use new and clean piping materials so that water or dust does not enter.

■ Required Tools and Cautions on handling

Prepare the tools and equipment listed in the following table before starting the installation work.

: R410A exclusive : Generic

Tools/equipment Use

Manifold gauge* Charging hose Gas leak detector Gas leak check Vacuum pump with backflow

prevention function Flare tool Flare machining of pipes Bender Bending pipes Refrigerant recovery equipment Refrigerant recovery Torque wrench Tightening flare nuts Pipe cutter Cutting pipes Brazing torch and nitrogen

cylinder Refrigerant charging scales Charging refrigerant 4 mm hexagon wrench Opening liquid valve

Vacuuming/charging refrigerant and operation check

Vacuum drying

Braze pipes

Usable if dimensions are adjusted.

Ø1/2" (12.7 mm) and Ø5/8" (15.9 mm)

5-EN 6-EN

4 Selection of installation place

Upon customer’s approval, install the air conditioner in a place which satisfies the following conditions:

• Place where it can be installed horizontally.

• Place which can reserve a sufﬁ cient service space for safe maintenance or checks.

• Place where there is no problem even if the drained water overﬂ ows.

Avoid the following places:

• Salty places (seaside area) or places with much gas sulﬁ de (hot spring area) (If selecting such a place, special maintenance is required.)

• Places where oil (including machine oil), steam, oil smoke or corrosive gas is generated.

• Places where an organic solvent is used.

• Chemical plants with a cooling system using liquid carbon dioxide.

• Places where a device generating high frequency (inverter, non-utility generator, medical apparatus, or communication equipment) is set. (Malfunction or abnormal control of the air conditioner, or interference to devices listed above may occur.)

• Places where discharged air from the outdoor unit blows against the windows of a neighbour’s house.

• Places unable to bear the weight of the unit.

• Places with poor ventilation.

• The unit will operate down to an outdoor temperature of 13 °F, however considerable performance decrease will be expected below 5 °F. Therefore please consider installation location/surroundings and system design when expected to operate between 5 °F and 13 °F.

■ Installation space

Leave space necessary for running, installation and servicing.

Air discharge

Air intake

Installation/servicing surface

Square hole for handling

(Rear side)

19.7" (500) or more

0.4" (10) or more

19.7" (500) or more

(Front side)

Outdoor unit top view

L Recommendation 7.9" (200mm),

at least 0.8" (20mm) or more.

0.4" (10) or more

31.5" (800) or less

0.4" (10) or more

Unit: in (mm)

Air intake

L L

NOTE

• If there is an obstacle above the outdoor unit, leave a space of 78.7" (2000) or more to the top end of the outdoor unit.

• If there is a wall around the outdoor unit, make sure that its height does not exceed 31.5" (800).

7-EN 8-EN

– 4 –

– 5 –

▼ Combination of outdoor units

Model name

(Standard Model)

MMY-MAP0726FT9P-UL MMY-MAP0726* – – MMY-MAP0966FT9P-UL MMY-MAP0966* – – MMY-MAP1206FT9P-UL MMY-MAP1206* – – MMY-MAP1446FT9P-UL MMY-MAP1446* – – MMY-MAP1686FT9P-UL MMY-MAP1686* – – MMY-AP1926FT9P-UL MMY-MAP0966* MMY-MAP0966* – MMY-AP2166FT9P-UL MMY-MAP1206* MMY-MAP0966* – MMY-AP2406FT9P-UL MMY-MAP1446* MMY-MAP0966* – MMY-AP2646FT9P-UL MMY-MAP1446* MMY-MAP1206* – MMY-AP2886FT9P-UL MMY-MAP1446* MMY-MAP1446* – MMY-AP3126FT9P-UL MMY-MAP1686* MMY-MAP1446* – MMY-AP3366FT9P-UL MMY-MAP1206* MMY-MAP1206* MMY-MAP0966* MMY-AP3606FT9P-UL MMY-MAP1206* MMY-MAP1206* MMY-MAP1206* MMY-AP3846FT9P-UL MMY-MAP1446* MMY-MAP1206* MMY-MAP1206* MMY-AP4086FT9P-UL MMY-MAP1446* MMY-MAP1446* MMY-MAP1206* MMY-AP4326FT9P-UL MMY-MAP1446* MMY-MAP1446* MMY-MAP1446* MMY-AP4566FT9P-UL MMY-MAP1686* MMY-MAP1446* MMY-MAP1446*

Model name

(Space Saving Model)

MMY-AP192S6FT9P-UL MMY-MAP1206* MMY-MAP0726* – MMY-AP240S6FT9P-UL MMY-MAP1206* MMY-MAP1206* – MMY-AP288S6FT9P-UL MMY-MAP1686* MMY-MAP1206* – MMY-AP336S6FT9P-UL MMY-MAP1686* MMY-MAP1686* –

Unit 1 Unit 2 Unit 3

Header unit Follower unit Follower unit

Unit 1 Unit 2 Unit 3

Header unit Follower unit Follower unit

5 Carrying in the outdoor unit

CAUTION

Handle the outdoor unit carefully, observing the following items.

•

To use a forklift or other machinery for loading/unloading in transportation, insert the fork of the forklift into the rectangular holes for handling as shown below.

•

To lift up the unit, insert a rope capable of bearing the weight of the unit into the rectangular holes shown below. Tie the unit from 4 sides. (Apply padding in positions where the rope comes in contact with the outdoor unit so that no damage is caused to the outer surface of the outdoor unit.) (There are reinforcing plates on the side surfaces, so the rope cannot be passed through.)

Correct Incorrect Incorrect

Plaster board

■ Weight center and weight

Unit: in (mm)

◆ Weight center of an outdoor unit

(A) (B) (C)Anchor bolt position

Anchor bolt position

27.6" (700)

29.7" (755)

No. Model type

(A) MAP0726FT9P-UL 20.5" (520) 15.4" (390) 24.0" (610) 600 (272)

MAP0966FT9P-UL

(B)

MAP1206FT9P-UL MAP1446FT9P-UL

(C)

MAP1686FT9P-UL

Anchor bolt position

29.7" (755)

Anchor bolt position

36.2" (920)

Anchor bolt position

51.6" (1310)

29.7" (755)

Anchor bolt position

(in(mm))Y(in(mm))Z(in(mm))

23.8" (605) 15.7" (400) 23.2" (590) 721 (327)

30.3" (770) 16.3" (415) 22.4" (570) 882 (400)

Weight (lb(kg))

Rope

Rectangular

holes for handling

Front/Back

Side

Incorrect

Correct

Fork of the forklift

9-EN 10-EN

Plaster board

Rectangular holes for lifting

Reinforcing plate

6 Installation of the outdoor unit

WARNING

Install the outdoor unit securely in a location where the base can sustain the weight adequately.

If strength is insufficient, the unit may fall down resulting in human injury.

CAUTION

•

Drain water is discharged from the outdoor unit. (Especially while heating) Install the outdoor unit in a place with good drainage.

•

For installation, be careful of the strength and level of the foundation so that abnormal sounds (vibration or noise) are not generated.

REQUIREMENT

Installation in a snowfall area

1. Install the outdoor unit on a higher foundation than the snowfall or set up a stand to install the unit so that snowfall will not affect the unit.

• Set up a stand higher than the snowfall.

• Apply an angled structure to the stand so that drainage will not be prevented. (Avoid using a stand with a ﬂ at

surface.)

2. Mount a snowfall-hood onto the air inlet and the air outlet.

• Leave enough space for the snowfall-hood so that it will not be an obstacle for the air inlet and the air outlet.

Snowfall-hood for air outlet (locally procured)

Snowfall-hood for air outlet (4 faces) (locally procured)

• Anchor bolt positions are as shown below:

Continuous hole (0.6" × 0.8" (15 × 20) long hole)

Model type A B C L

MAP0726 27.6" (700) 39.0" (990) – MAP0966, MAP1206 36.2" (920) 47.6" (1210) – MAP1446, MAP1686 51.6" (1310) 63.0" (1600) 59.0" (1500)

2. To draw out the refrigerant pipe from the underside, set the height of the stand to 19.7" (500mm) or more.

L+11.4" (290) L+11.4" (290)

A A A

BL LB

3. Do not use 4 stands on the corner to support the outdoor unit.

29.7" (755)

31.1" (790)

*Only MAP144, MAP168 type has holes for additional strength.

Recommendation 7.9" (200), at least 0.8" (20) or more

C* A

Incorrect Correct

19.7" (500mm) or more

4. If vibration-proof rubbers (including vibration-proof blocks) are used, fit them under the whole clamping legs.

Correct

Stand (locally procured)

1. To install multiple outdoor units, arrange them with 7.9" (200mm) (recommendation, at least 0.8" (20mm)) or more spaces in between.

Anchor bolt

Vibration-proof rubber

Install the vibration-proof rubber so that the bend part of the ﬁ xing leg is grounded.

Fix each outdoor unit with M12 anchor bolts at 4 positions. 0.8" (20mm) projection is appropriate for an anchor bolt.

Unit: in (mm)

L L

0.8"

(20)

5. Be careful of the connecting arrangement of the header unit and follower units. Set the outdoor units in order of

Incorrect Incorrect Incorrect

The bend part of the ﬁ xing leg is not grounded.

capacity from the one with the largest capacity. (A (Header unit) ≥ B ≥ C)

M12 anchor bolt 4 positions/unit

Recommendation 7.9" (200mm), at least 0.8" (20mm) or more.

• Be sure to use a header unit for the leading outdoor unit to be connected to the main pipe. (Figure 1, 3 and 6)

• Be sure to use a T-shaped branch joint (RBM-BT14FUL/RBM-BT24FUL: separately purchased) to connect each outdoor unit.

• Be careful of the direction of the outdoor unit connection piping kit for the liquid side. (As shown in Figure 2, an

outdoor unit connection piping kit cannot be attached so that the refrigerant of the main pipe ﬂ ows directly into

11-EN 12-EN

– 6 –

the header unit.)

– 7 –

Discharge side gas piping / Liquid piping

▼ Figure 1

Correct

Main pipe

To the indoor unit

Header unit A

Follower unit B

Follower unit C

▼ Figure 2

Incorrect

To the indoor unit

Header unit A

Follower unit B

Main pipe

Follower unit C

Suction side gas piping

[Inverse connection of a gas-side branch unit]

▼ Figure 3

Correct

Header unit A

Main pipe

To the indoor unit

Branch unit

Follower unit B

Follower unit C

• When attaching a Y-shaped branch unit for the outdoor unit connection piping kit, attach it level with the ground (Be sure not to exceed ±15 degrees.). Regarding a T-shape branch joints for the liquid side, there is no restriction for its angle.

At a level position

(Horizontal line) (Horizontal line)

(A arrow view) (B arrow view)

Within ±15 degrees

• In case of using the Y-shaped branching joint for connecting between outdoor units (Discharge gas joint and Suction gas joint), please keep the straight part of at least 19.7" (500mm) at the inlet.

▼ Figure 4

Incorrect

Main pipe

To the indoor unit

Header unit A

Within ±15 degrees

19.7"

(500mm)

or more

Follower unit B

To gas-side branch unit

Follower unit C

Do not connect a branch unit vertically.

When drawing pipes downward

▼ Figure 5

Incorrect

Header unit

Main pipe

To the indoor unit

▼ Figure 6

Correct

L-shaped pipe

To gas-side branch unit

Suction gas joint

Header unit A

Follower unit B

Follower unit C

A view

Suction gas joint

Unit

Vertical line

[Vertical connection of branch units]

▼ Figure 7

Incorrect

To gas-side

branch unit

To gas-side

branch unit

13-EN 14-EN

7 Refrigerant piping

• After installation, check that the refrigerant gas does not leak.

If the refrigerant gas leaks into the room and comes into contact with fire such as a fan heater, stove, or kitchen range, noxious gas may be generated.

WARNING

•

If the refrigerant gas leaks during installation, ventilate the room.

If the leaked refrigerant gas comes into contact with ﬁ re, noxious gas may be generated.

•

After installation, check that the refrigerant gas does not leak.

If the refrigerant gas leaks into the room and comes into contact with ﬁ re such as a fan heater, stove, or kitchen range, noxious gas may be generated.

■ Connection of refrigerant pipe

• The service valves are inside the outdoor unit. To access them, remove the front panel and the piping/ wiring panel. (M5: 9 pcs.)

• As shown in the illustration on the right, the hooks

are at the right and left sides of the front panel. Lift up and remove the front panel.

• Pipes can be drawn out forward or downward from the outdoor unit.

• To draw out the pipe forward, draw it out to the outside via the piping/wiring panel, and leave a space of 19.7" (500mm) or more from the main pipe connecting the outdoor unit with the indoor unit, considering service work or other work on the unit. (For replacing the compressor, 19.7" (500mm) or more space is required.)

• To draw out the pipe downward, remove the knockouts on the base plate of the outdoor unit, draw

(Left piping)

19.7" (500mm) or more

Drawing out forward

(Left piping)

(Right piping)

Drawing out downward

the pipes out of the outdoor unit, and perform piping on the right/left or rear side. Downward length of the balance pipe should be 16.4 ft (5m) or less.

Packed valve of liquid side Packed valve of liquid side

Packed valve of balance pipe

Ball valve of discharge gas pipe

(MAP072)

Packed valve of liquid side Ball valve of suction gas side Ball valve of suction gas side

Packed valve of balance pipe

Ball valve of discharge gas pipe

(MAP096, 120) (MAP144, 168)

Hook

Front panel

Piping/wiring panel

(Rear piping)

(Right piping)

Ball valve of suction gas side

Packed valve of balance pipe

Ball valve of discharge gas pipe

REQUIREMENT

• For a brazing work of the refrigerant pipes, be sure to use nitrogen gas in order to prevent oxidation of the inside of the pipes; otherwise clogging of the refrigerating cycle due to oxidized scale may occur.

• Use clean and new pipes for the refrigerant pipes and perform piping work so that water or dust does not contaminate the refrigerant.

• Be sure to use two spanners to loosen or tighten the ﬂ are nut. If a single spanner is used, the required level of tightening cannot be obtained. Tighten the ﬂ are nut with the speciﬁ ed torque. (If it is hard to loosen or tighten the ﬂ are nut of the balance pipe or packed valve of the liquid side with two spanners, loosen or tighten the ﬂ are nut while holding the valve mounting plate with a spanner.)

Unit: ft•lbs (N•m)

Outer dia. of copper pipe

Tightening torque

Ø1/4 (6.4 mm) 10 to 13 (14 to 18)

Ø3/8 (9.5 mm) 24 to 31 (33 to 42) Ø1/2 (12.7 mm) 37 to 46 (50 to 62) Ø5/8 (15.9 mm) 50 to 60 (68 to 82) Ø3/4 (19.1 mm) 74 to 88 (100 to 120)

Do not apply refrigerating oil to the surface of the flare.

Ball valve of discharge gas side Do not clamp the service port

with two spanners, doing so may damage the service port.

Pipe connection method (Example)

Draw-out forward Draw-out downward

Suction-side gas pipe

Discharge-side gas pipe

Liquid pipe

Attachment

Elbow

Socket

Cut the L-shaped pipe, then braze the socket procured locally.

Braze the supplied attachment pipe and elbow procured locally.

Braze the supplied attachment pipe and socket procured locally.

Discharge-side gas pipe

pipe

Pipe

Suction-side gas pipe

Balance pipe

L-shaped pipe

Pipe

Socket

Pipe

Suction-side

gas pipe

Section to be cut

Suction-side gas pipe

Discharge-side gas pipe

Liquid pipe

Discharge-side gas pipe

Liquid pipe

Attachment

pipe

Attachment

pipe

Socket

Cut the L-shaped pipe, then braze the socket procured locally.

Braze the supplied attachment pipe and socket procured locally.

Pipe

Suction-side gas pipe

Balance pipe

Pipe

L-shaped pipe

Socket

Pipe

Socket

Suction-side

gas pipe

Section to be cut

15-EN 16-EN

– 8 –

– 9 –

For more information, please refer to the engineering data book.

* Permanent operation below 80 % is not recommended.

Extruding margin of copper pipe with ﬂ are machining: B (Unit: in (mm))

Copper pipe outer

dia.

3/8" (9.5)

1/2"(12.7) 5/8" (15.9) 3/4" (19.1)

When using R410A

tool

0 - 0.02"

(0 - 0.5)

When using

conventional tool

0.04" - 0.06" (1.0 - 1.5)

Coupling size of brazed pipe

Connected section

External size Internal size

ØC

ØF

Extruding margin of copper pipe with ﬂ are tools: A (Unit: in (mm))

0.25" (

0.38" (

0.5" (

0.63" (

0.76" (

0.88" (

1.13" (

1.38" (

1.63" (

+0.0016

−0.0008

+0.0016

−0.0008

+0.0016

−0.0008

+0.0016

−0.0008

+0.0012

−0.0012

+0.0012

−0.0012

+0.0024

−0.0008

+0.0016

−0.0016

+0.0031

−0.0008

Connected section

Min. depth of

+0.04

) 6.45 ( ) 9.62 (

) 12.81 (

) 16.00 ( ) 19.19 ( ) 23.36 ( ) 28.75 ( ) 35.11 ( ) 42.28 (

0.28 7 0.24 6 0.0024" or less 0.06 or less 0.020" 0.50

)

−0.02

+0.04

0.31 8 0.28 7 0.0031" or less 0.08 or less 0.024" 0.60

)

−0.02

+0.04

0.35 9 0.31 8 0.0039" or less 0.10 or less 0.028" 0.70

)

−0.02

+0.04

0.35 9 0.31 8 0.0051" or less 0.13 or less 0.031" 0.80

)

−0.02

+0.03

0.43 11 0.39 10 0.0059" or less 0.15 or less 0.031" 0.80

)

−0.03

+0.03

0.43 11 0.39 10 0.0063" or less 0.16 or less 0.032" 0.82

)

−0.03

+0.06

0.51 13 0.47 12 0.0079" or less 0.20 or less 0.039" 1.00

)

−0.02

+0.04

0.55 14 0.51 13 0.0098" or less 0.25 or less 0.047" 1.20

)

−0.04

+0.08

0.59 15 0.55 14 0.0110" or less 0.28 or less 0.053" 1.35

)

−0.02

insertion

Oval value

thickness

Copper pipe outer

dia.

–0.02" (–0.4)

3/8" (9.5) 0.52" (13.2)

1/2"(12.7) 0.65" (16.6) 5/8" (15.9) 0.78" (19.7) 3/4" (19.1) 0.94" (24.0)

* When using the conventional flare tool, to connect R410A pipes with flaring, make a margin approx.

0.02" (0.5 mm) longer than that of an R22 pipe so that the flare size matches the one specified. It is convenient to use a copper pipe gauge for size adjustment of the extruding margin.

CAUTION

Wrap the ball valve in a wet cloth to keep it cool and prevent the heat from the torch from damaging it when connecting the pipe to the ball valve on the gas line.

Standard outer dia.

of connected

copper pipe

External size Internal size

Standard outer dia.

(Allowable difference)

CFKG

in mm in mm in mm in mm in mm in mm in mm

Ø1/4 6.35 1/4"(±0.0012) 6.35(±0.03) Ø3/8 9.52 3/8"(±0.0012) 9.52(±0.03) Ø1/2 12.7 1/2"(±0.0012) 12.70(±0.03) Ø5/8 15.88 5/8"(±0.0012) 15.88(±0.03) Ø3/4 19.05 3/4"(±0.0012) 19.05(±0.03)

Ø7/8 22.2 7/8"(±0.0012) 22.22(±0.03) Ø1-1/8 28.58 1-1/8"(±0.0012) 28.58(±0.04) Ø1-3/8 34.92 1-3/8"(±0.0012) 34.90(±0.04) Ø1-5/8 41.28 1-5/8"(±0.0012) 41.28(±0.05)

■ Selection of pipe size

Cloth

Torch

17-EN 18-EN

◆ Capacity code of indoor and outdoor units

Selection of pipe material

• For the indoor unit, the capacity code is decided at each capacity type. (Table 1)

• The capacity codes of the outdoor units are decided at each capacity type. The maximum number of connectable indoor units and the total value of capacity codes of the indoor units are also decided. (Table 2)

NOTE

Compared with the capacity code of the outdoor unit, the total value of capacity codes of the connectable indoor units differs based on the height difference between the indoor units.

When the height difference between the indoor units is 49 ft (15 m) or less Total indoor capacity code must be between 80% and 135% of the capacity of the outdoor unit.

When the height difference between the indoor units is over 49 ft (15 m) Total indoor capacity code must be between 80% and 105% of the capacity of the outdoor unit.

• If MMU-AP0072H2UL-1 or MMU-AP0122H2UL is included in the system, total indoor capacity code must be between 80% and 100% of outdoor unit capacity.

• If MMD-AP

• when the height difference between the indoor units is over 49 ft (15 m): between 80% and 105%

• when the height difference between the indoor units is 49 ft (15 m) or less: between 80% and 120%

* If the system conﬁ gure only the limited indoor unit type and limited number of connection indoor unit, total indoor

capacity code up to 150% of the outdoor capacity code is available when the height difference between the indoor units is 49 ft (15 m) or less.

• If the minimum capacity of the connected indoor units is to be more than 50% and less than 80%, there are limiting conditions.

For more information, please refer to the engineering data book.

BH is included in the system, total indoor capacity code must be,

∗∗∗

Min.

coupling

Table 1

Indoor unit capacity type

007 type 7.5 009 type 9.5 012 type 12 015 type 15.4 018 type 18 021 type 21 024 type 24 027 type 27 030 type 30 036 type 36 042 type 42 048 type 48 054 type 54 072 type 72 096 type 96

Indoor capacity code

(Equivalent to capacity)

Table 2

Outdoor unit

capacity type

Outdoor unit

capacity code

Maximum number of indoor units (*1)

Height difference between indoor units

49 ft (15 m) or less Over 49 ft (15 m)

072 type 096 type 120 type 144 type 168 type 192 type 216 type

72 12 10

96 16 13 120 21 16 144 25 19 168 30 23 192 34 26 216 38 29

240 type 240 42 32 264 type 264 46 36 288 type 288 50 39 312 type 312 55 43 336 type 336 60 47 360 type 360 63 49 384 type 384 64 52 408 type 408 64 55 432 type 432 64 59 456 type 456 64 63

* For combination of the outdoor units, refer to “Combination of outdoor units”. (*1) : Under centralized control maximum 54 units.

Outdoor unit

(1) Balance pipes Ø3/8"

Liquid pipe

Discharge-side

Suction-side

(3) Main piping

gas pipe

Header unit A

(9)

Follower unit B

(2)

First branch

(9)

Follower unit C

(1)(1)(1)

(4)

(7)(7)

(10) Single port type Flow selector unit

(8) Branching header

(7) Y-shaped branching joint

(4)

(10)

(5)

(7)

(4)

(6)

(10)

(5)

(7)

(4)

(10)

(5)

Indoor unit

(6)

(4)

(10)

(4)

(5)

(10) Multi port type Flow selector unit

(7)

(4)*2

(6)

(4)*2

(7)

(4)*2

(6) (6) (6)

(7)

(6)

(6) (6)

Cooling only Cooling only

(7)

19-EN 20-EN

– 10 –

– 11 –

(1) Outdoor unit connecting pipe

Outdoor unit capacity type (*1) Balance pipe side Suction gas side

072 type, 096 type Ø3/8" Ø7/8" Ø3/4" Ø1/2"

120 type Ø3/8" Ø1-1/8" Ø3/4" Ø1/2" 144 type Ø3/8" Ø1-1/8" Ø7/8" Ø5/8" 168 type Ø3/8" Ø1-1/8" Ø7/8" Ø3/4"

(2) Connecting pipe between outdoor units

Total capacity code of the outdoor

units at downstream side (*1) (*7)

336 Ø1-3/8" Ø1-1/8" Ø7/8"

360 or more Ø1-5/8" Ø1-1/8" Ø7/8"

Suction gas side

Discharge

(3) Main pipe

Total capacity code of all

outdoor units

072, 096 Ø7/8" Ø3/4" Ø1/2"

120 Ø1-1/8" Ø3/4" Ø1/2"

144 Ø1-1/8" Ø7/8" Ø5/8" 168, 192 Ø1-1/8" Ø7/8" Ø3/4" 216, 240 Ø1-3/8" Ø1-1/8" Ø3/4"

264, 288, 312, 336 Ø1-3/8" Ø1-1/8" Ø7/8"

360 or more Ø1-5/8" Ø1-3/8" Ø7/8"

Suction gas side

Discharge

(4) Branching pipe

Total capacity code of indoor units

at downstream side (*1) (*2) (*3) (*8)

Below 61 Ø5/8" Ø1/2" Ø3/8"

61 to below 115.5 Ø7/8" Ø3/4" Ø1/2"

115.5 to below 153.5 Ø1-1/8" Ø7/8" Ø5/8"

153.5 to below 191.5 Ø1-1/8" Ø7/8" Ø3/4"

191.5 to below 239 Ø1-3/8" Ø1-1/8" Ø3/4" 239 to below 334 Ø1-3/8" Ø1-1/8" Ø7/8"

334 or more Ø1-5/8" Ø1-3/8" Ø7/8"

Suction gas side

Discharge

(5) FS unit and indoor unit connection pipe

Indoor unit capacity code Gas side Liquid side

007 to 012 type Ø3/8" Ø1/4" 015 to 018 type Ø1/2" Ø1/4" 021 to 054 type Ø5/8" Ø3/8" 072 to 096 type Ø7/8" Ø1/2"

(6) Branching and indoor unit connection pipe

Indoor unit capacity code Gas side Liquid side

007 to 012 type

015 to 018 type

Pipe length

(Actual length)

Pipe length

(Actual length)

021 to 054 type Ø5/8" Ø3/8" 072 to 096 type Ø7/8" Ø1/2"

49 ft or less Ø3/8" Ø1/4"

Over 49 ft Ø1/2" Ø3/8"

49 ft or less Ø1/2" Ø1/4"

Over 49 ft Ø5/8" Ø3/8"

gas side

Discharge

gas side

Liquid side

(7) Y-shaped branching joint (*3) (*4)

Total capacity code of indoor units

on downstream side from

Y-shaped branching joint (*4) (*5)

Below 61 RBM-BY55FUL RBM-BY55UL

61 to below 134.5 RBM-BY105FUL RBM-BY105UL

134.5 to below 239 RBM-BY205FUL RBM-BY205UL

239 or more RBM-BY305FUL RBM-BY305UL

For 3 pipe For 2 pipe

Model name

(8) Branching header

Total capacity code of the indoor units

on downstream side from

branching header (*4) (*5) (*6)

For 4 branching

For 8 branching

Below 134 RBM-HY1043FUL RBM-HY1043UL

134 to below 240 RBM-HY2043FUL RBM-HY2043UL

Below 134 RBM-HY1083FUL RBM-HY1083UL

134 to below 240 RBM-HY2083FUL RBM-HY2083UL

For 3 pipe For 2 pipe

Model name

(9) Outdoor unit connection piping kit

Total capacity code of the outdoor

units at downstream side (*1) (*7)

Below 247 RBM-BT14FUL

247 or more RBM-BT24FUL

Model name

(10) Flow Selector unit (*9)

Single port type (*10)

Total capacity code of outdoor units

on downstream side from FS unit

Below 38 RBM-Y0383FUL

38 to below 61 RBM-Y0613FUL

61 to 96 or less RBM-Y0963FUL

Multi port type (*11)

Total capacity code of outdoor units

on downstream side from FS unit

Below 61

(*1) : The capacity code of outdoor unit and indoor unit, please refer to “Capacity code of indoor and outdoor units”. (*2) : If the size of the pipe to be selected is larger than the size of the main pipe, please use the same pipe size as the main pipe. (*3) : Two pipes in downstream of FS unit and cooling only indoor unit use liquid pipe and suction gas pipe. (*4) : The first branching joint, select at capacity code of outdoor unit. (*5) : If the total capacity code of indoor units exceed the capacity code of outdoor unit, select the size from the capacity code of the outdoor unit. (*6) : For one line pipe line of header branching, total 57 capacity code of indoor units is connectable.

If connecting the branching header to the first branch section with the capacity code of outdoor unit is more than 114 (kBtu/h) and less than 247 (kBtu/h), use the RBM-2043FUL (4 branch), and RBM-HT2083FUL (8 branch).

Also, the branching header cannot be used for the first branch section when the capacity code of outdoor unit is more than 247 (kBtu/h). (*7) : The main pipe is the starting point. The follower unit side is the downstream side. (*8) : Selection piping is the starting point. The indoor unit side is the downstream side. (*9) : If the code of outdoor unit is over 408, “Flow Selector unit” is available for only Multi port type. (*10) : The group connection of the multiple indoor units is possible up to maximum 8 units, and it is possible only within one FS unit. (*11) : The group connection of the multiple indoor units is possible up to 8 units if one remote controller is used, and it is possible up to 7 units if two

remote controllers are used. The group connection of the multiple indoor units is possible only within one branch.

No. of branch Model name

Model name

4 RBM-Y0613F4PUL

6 RBM-Y0613F6PUL

21-EN 22-EN

CAUTION

Please use the appropriate pipe when the pipe size is Ø3/4 or more. (Table 3)

Outer diameter

Inch mm Inch mm OK OK Ø1/4" 6.35 0.03 0.80 OK OK Ø3/8" 9.52 0.03 0.80 OK OK Ø1/2" 12.7 0.04 1.00 OK OK Ø5/8" 15.88 0.04 1.00 OK OK Ø3/4" 19.05 0.04 1.00 NG OK Ø7/8" 22.2 0.04 1.00 NG OK

Ø1-1/8" 28.58 0.04 1.00 NG OK Ø1-3/8" 34.92 0.05 1.20 NG OK Ø1-5/8" 41.28 0.06 1.40 NG OK

Minimum

wall thickness

Temper

Soft Hard, Half hard

■ Allowable length of refrigerant pipes and allowable height difference between units

C Follower unit

(c)

Outdoor unit connecting

Height difference between outdoor units

Outdoor unit

Header

Follower

unit

(b)(a)

Outdoor unit connection

unit

Height difference between outdoor and indoor units:

Main piping

Branching pipe

Indoor unit connecting pipe

Indoor unit

Flow Selector unit

Indoor unit

Indoor unit connecting pipe

Indoor unit

Branching header

The longest piping length:

The longest piping length from the first branch: Li

The longest piping length in Flow selector unit group : Ln

L6 L7

(m)

Flow Selector unit (Multi port type)

Y-shaped branching joint

tnioj gnihcnarb depahs-Ygnihcnarb tsriF

(n)

(o)

Height difference between indoor units H2

23-EN 24-EN

– 12 –

– 13 –

(*1)

(*2)

(*1) : In case without central control. It is up to 54 units in case with central control. (*2) : If the system configure only the limited indoor unit type and limited number of connection indoor unit, total indoor capacity code up to 150%

of the outdoor capacity code is available when the height difference between the indoor units is 49 ft (15m) or less.

* Permanent operation and heating operation below 80 % is not recommended.

For more information, please refer to the engineering data book.

◆ System restrictions

Max. No. of combined outdoor units 3 units Max. capacity of combined outdoor units 38 ton Max. No. of combined indoor units 64 units (*2)

Max. capacity of combined indoor units

H2 ≤ 49 ft (15m)

135% of outdoor units’ capacity 150% of outdoor units’ capacity (*1)

H2 > 49 ft (15m) 105% of outdoor units’ capacity

(*1) : If the system configure only the limited indoor unit type and limited number of connection indoor unit, total indoor capacity code up to 150%

of the outdoor capacity code is available when the height difference between the indoor units is 49 ft (15m) or less.

(*2) : In case without central control. It is up to 54 units in case with central control.

• If the minimum capacity of the connected indoor units is to be more than 50% and less than 80%, there are limiting conditions.

For more information, please refer to the engineering data book.

◆ Cautions for installation

• Set the outdoor unit ﬁ rst connected to the branching pipe to the indoor units as the header unit.

• Install the outdoor units in order of their capacity codes : (A) header unit ≥ (B) ≥ (C)

• Y-shaped branching joint must be installed horizontally.

• When piping to outdoor units using outdoor unit connection piping kits, intersect the pipes to the outdoor unit

and those to indoor units at a right angle as shown in ﬁ gure 1 on “6. Installation of the outdoor unit”. Do not connect them as in ﬁ gure 2 on “6. Installation of the outdoor unit”.

25-EN 26-EN

◆ Allowable length and allowable height difference of refrigerant piping

Item

Total extension of pipe (liquid pipe, real length)

Farthest piping length L (*1) (*3) (*7)

Max. equivalent length of Main piping (*12)

Pipe length

Height difference

Maximum equivalent length indoor units in group control by one single port Flow Selector unit Ln

Maximum real length between Flow Selector unit and indoor unit (*2)

Height difference between indoor units in group control by one Flow Selector unit H4

(*1) : Farthest outdoor unit from the first branch: (C), farthest indoor unit: (o) (*2) : If FS unit is connected to multiple indoor units, connect wires of FS unit to one of the indoor unit with main remote control. (*3) : Allowable values for length equivalent to furthest pipe are shown below and they vary according to capacity rank of outdoor unit.

(*4) : When system capacity is greater than 22 ton, height difference between indoor units is limited to 10 ft. If the piping exceeds 10 ft with a

(*5) : Ensure that the header unit is installed below all connected follower outdoor unit(s).

(*6) : 131 ft is possible for a system that uses only the flow selector unit (multi port type), whose all the indoor units are 030 type or higher, and

(*7) : As for 36 to 38 ton, contact our agent. (*8) : If the height difference (H2) between indoor units exceed 10 ft, set 164 ft or less. (*9) : Total charging refrigerant is 308 lbs or less. (*10) : The total piping length in one FS unit in case of branching to 4 : 394 ft (p + q + r + s + t + u), In case of branching to 6 : 590 ft. (*11) : Length of whole pipe should be shorter than 164 ft in one branch. (*12) : As for 34 to 38 ton, contact our agent. (*13) : Extension up till 295 ft is possible with conditions below ;

- Outdoor temperature Cooling : 50 - 115 ºF (DB) Heating : 23 - 59 ºF (DB) Simultaneous operating : 45 - 77 ºF (DB)

- Equivalent length of farthest piping from first branching Li < 164 ft

- Actual length of main piping L1 < 328 ft

- Height difference between indoor units : < 10 ft

- Single outdoor unit, and up to 14 ton

- Minimum capacity of connectable indoor unit 036 type or larger

- Height difference between FS unit : < 1.6 ft

- Diversity : 90 - 100%

Farthest equivalent piping length from the first branch Li (*1)

Farthest equivalent piping length between outdoor units LO (*1) 49 LA + Lc (LA + Lb) maximum equivalent piping length of pipes connected to outdoor

units Maximum real length of terminal branching section to indoor units 98 a + f, b + g, c + h, d + i, e + j, k, l

Maximum real length of between Flow Selector unit and indoor unit

Maximum equivalent length between branching section 164 L2, L3, L4, L8, L9

Height between outdoor and indoor units H1 (*7)

Height between indoor units H2 (*7)

Height between outdoor units H3 (*5) 16 –

6 to 14 ton : 607 ft, 16 to 26 ton : 640 ft, 28 to 34 ton : 656 ft

capacity greater than 22 ton there may be a case of capacity shortage in cooling.

Possible product failure may occur if header unit is installed above any follower unit(s).

working ambient temperature is 32 ºF or higher.

H2 ≤ 10 ft

Upper outdoor units

Lower outdoor units 98 (*6) – Upper outdoor units 131 – Lower outdoor units (*4) 49 –

Single port type 49

Multi port type 164 s + t , s + u ≤ 164 ft

Below 26 ton 984

26 ton or more 3281 (*9)

Equivalent length 656 (*2) Real length 591 Equivalent length 328

>10 ft

Real length 279 Equivalent length 394 Real length 328

H1 > 10 ft 164 H1

<10 ft 213

Single port type 49 f, g, h, i, j

Multi port type

Allowable

value (ft)

33 Lc (La , Lb)

164

(*10) (*11)

230

(*8) (*13)

98 L6 + L7 + L8 + o

1.6 –

LA + La + Lb + Lc + L1 + L2 + L3 +

L4 + L5 + L6 + L7 + L8 + L9 + a + b +

c + d + e + f + g + h + i + j + k + l +

m + n + o+ p + q + r + s + t + u

L3 + L4 + L5 + L6 + L7 + L8 + o

(Ex.) In case of wiring to the indoor

Pipes

LA + Lc + L1 + L3 + L4 +

L5 + L6 + L7 + L8 + o

p, q, r, s + t, s + u

–

unit (m): L6 + m ≤ 49 ft In case of wiring to the indoor unit (n): L6 + L7 + n ≤ 49 ft

■ Airtightness test

After the refrigerant piping has been finished, execute an airtight test. For an airtight test, connect a nitrogen gas canister as shown in the figure on this page and apply pressure.

• Be sure to apply pressure from the service ports of the packed valves (or ball valves) at the suction gas side,

■ Vacuum drying

• Be sure to use a vacuum pump equipped with the counter-flow prevention function so that oil in the pump will not flow back into piping for air conditioners. (If oil in the vacuum pump enters in the air conditioner with R410A refrigerant, a problem may be caused in the refrigerating cycle.)

discharge gas side, liquid side and balance pipe side.

• An airtight test can only be performed at the service ports at the suction gas side, discharge gas side, liquid side and balance pipe side.

• Close the valves fully at the suction gas side, discharge gas side, liquid side and balance pipe side. As there is a possibility that the nitrogen gas will enter into the cycle of outdoor units, re-tighten the valve rods at the liquid side and balance pipe side before applying pressure.

• For each refrigerant line, apply pressure gradually in steps at the suction gas side, discharge gas side, liquid side and balance pipe side.

Be sure to apply pressure at the suction gas side, discharge gas side, liquid side and balance pipe side.

WARNING

Never use oxygen, flammable gases, or noxious gases in an airtight test.

Low pressure

To gauge manifold

Liquid-side service port

Liquid-side valve

Piping at site

To outdoor unit

Service port of discharge gas side

Ball valve of discharge gas side

Service port of suction gas side

Ball valve of suction gas side

To outdoor unit

Piping at site

Packed valve details

To outdoor unit

Service

port

gauge

of balance

manifold

pipe side

To outdoor unit

Packed valve

Piping at site

of balance pipe side

Piping at site

Connected to indoor unit

Main piping

Brazed

Fully closed

Connected to other follower units

Suction gas side valve fully closed

Header outdoor unit

Service port

Ø6.4 copper pipe

Service port

Discharge gas side valve fully closed

Service port

Liquid side valve fully closed

Service port

Balanced pipe side valve fully closed

Able to detect a serious leakage

1. Apply pressure 43.5 psi (0.3 MPa) for 5 minutes or more.

2. Apply pressure 217.5 psi (1.5 MPa) for 5 minutes or more.

Available to detect slow leakage

3. Apply pressure 601 psi (4.15 MPa) for approx. 24 hours.

• If there is no pressure decrease after 24 hours, the test is passed.

NOTE

However, if the environmental temperature changes from the moment of applying pressure to 24 hours after that, the pressure will change by about 1.45 psi (0.01 MPa) per 1.8 °F. Consider the pressure change when checking the test result.

REQUIREMENT

When pressure decrease is detected in steps 1-3, check the leakage at the connecting points. Check the leakage using a foaming agent or other measures and seal the leak with re-brazing, flare retightening or other methods. After sealing, execute an airtight test again.

gauge

High pressure gauge

Reducing valve

Ø6.4 copper pipe

Gauge manifold

Nitrogen gas

After finishing the airtight test and discharging nitrogen gas, connect the gauge manifold to the service ports of the suction gas side, discharge gas side, liquid side and balance pipe side and connect a vacuum pump as shown in the figure below. Be sure to perform vacuuming for the suction gas side, discharge gas side, liquid side and balance pipe side.

To gauge manifold

Liquid-side service port

Liquid-side valve

Piping at site

Service port of suction gas side

Ball valve of suction gas side

To outdoor unit

Service port of discharge gas side

Ball valve of discharge gas side

To outdoor unit

Piping at site

Packed valve details

To outdoor unit

To gauge manifold

Piping at site

Service port of balance pipe side

To outdoor unit

Packed valve of balance pipe side

Connected to indoor unit

Fully closed

Connected to other follower units

Suction gas side valve

Main pipe

Brazed

fully closed

Header outdoor unit

Discharge gas side valve fully closed

Balanced pipe side valve fully closed

Low pressure

Service port

Liquid side valve fully closed

Service port

gauge

High pressure gauge

Gauge manifold

Vacuum

pump

• Use a vacuum pump with a high vacuuming degree [14.6 psi (5Torr, -755mmHg)] and large exhaust gas amount (40L/minute or larger).

• Perform vacuuming for 2 or 3 hours, though the time differs depending on the pipe length. Check that all the valves at the suction gas side, discharge gas side, liquid side and balance pipe side are fully closed.

• If the pressure does not reach 14.6 psi or less even after vacuuming for over 2 hours, continue vacuuming for 1 hour or more. If the pressure does not reach 14.6 psi after 3 hours of vacuuming, stop vacuuming and check for air leakage.

• If the pressure reaches 14.6 psi or less after vacuuming for 2 hours or more, close the valves VL and VH on the gauge manifold fully and stop the vacuum pump. Leave it as it is for 1 hour to conﬁ rm that the vacuuming degree does not change. If the degree of vacuum loss is large, moisture may remain in the pipes. In that case, inject dry nitrogen gas and apply pressure to 7.3 psi and perform vacuuming again.

• After ﬁ nishing the above procedure of vacuuming, exchange the vacuum pump with a refrigerant canister and advance to the additional charging of refrigerant.

■ Adding refrigerant

After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of refrigerant.

1. Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipes at the local site. For refrigerant to be charged in pipes at the local site, calculate the amount and charge it additionally.

Model name Refrigerant amount charged in factory

0726FT9P-UL

MMY-MAP

0966FT9P-UL 1206FT9P-UL 1446FT9P-UL 1686FT9P-UL

24.3 lbs

2. Additional refrigerant charge, please calculate from the calculation of additional refrigerant charge amount.

27-EN 28-EN

– 14 –

– 15 –

■ Calculation of additional refrigerant charge amount

Additional refrigerant charge amount (lbs) = [1] + [2]

[1]. Compensation by capacity of outdoor unit (Table1) [2]. (Actual length of liquid pipe × Additional refrigerant charge amount per liquid pipe 1 ft (Table2)) × 1.3

NOTE

If the additional refrigerant amount indicates minus as the result of calculation, use the air conditioner without additional refrigerant.

(Table1) Compensation by capacity of outdoor unit

Outdoor unit

capacity type

072 type MMY-MAP0726FT9P-UL 4.4 096 type MMY-MAP0966FT9P-UL 6.6 120 type MMY-MAP1206FT9P-UL 17.6 144 type MMY-MAP1446FT9P-UL 24.3 168 type MMY-MAP1686FT9P-UL 30.9 192 type MMY-AP1926FT9P-UL 8.8 216 type MMY-AP2166FT9P-UL 13.2 240 type MMY-AP2406FT9P-UL 22.1 264 type MMY-AP2646FT9P-UL 26.5 288 type MMY-AP2886FT9P-UL 30.9 312 type MMY-AP3126FT9P-UL 33.1 336 type MMY-AP3366FT9P-UL 13.2 360 type MMY-AP3606FT9P-UL 24.3 384 type MMY-AP3846FT9P-UL 28.7 408 type MMY-AP4086FT9P-UL 30.9 432 type MMY-AP4326FT9P-UL 33.1 456 type MMY-AP4566FT9P-UL 37.5

Outdoor unit

capacity type

192 type MMY-AP192S6FT9P-UL 8.8 240 type MMY-AP240S6FT9P-UL 22.1 288 type MMY-AP288S6FT9P-UL 30.9 336 type MMY-AP336S6FT9P-UL 37.5

Model name

(Standard Model)

Model name

(Space Saving Model)

(Table2) Actual length of liquid pipe × Additional refrigerant charge amount per liquid pipe 1 ft

Liquid pipe outer diameter (in) Ø1/4" Ø3/8" Ø1/2" Ø5/8" Ø3/4" Ø7/8" Additional refrigerant amount lbs/ft 0.017 0.037 0.071 0.108 0.168 0.235

Compensation by

capacity type outdoor unit

(lbs)

Compensation by

(lbs)

Example: 120 type (MMY-MAP1206FT9P-UL)

Pipe Liquid pipe size Actual Piping length

L1 Ø1/2" 30 ft L2 Ø1/2" 15 ft L3 Ø3/8" 10 ft L4 Ø3/8" 10 ft L5 Ø3/8" 5 ft L6 Ø1/4" 10 ft L7 Ø1/4" 10 ft

Additional refrigerant charge amount(lbs) = [1] + [2] = 17.6 lbs + 5.798 lbs = 23.40 lbs

[1]. Compensation by capacity of outdoor unit (Table1)

= Compensation by 120 type = 17.6 lbs

[2]. (Actual length of liquid pipe × Additional refrigerant charge amount per liquid pipe 1 ft (Table2)) × 1.3

= (Lx × 0.017 lbs/ft + Ly × 0.037 lbs/ft + Lz × 0.071 lbs/ft) × 1.3 = ((L6+L7) × 0.017 lbs/ft + (L3+L4+L5) × 0.037 lbs/ft+(L1+L2) × 0.071 lbs/ft) × 1.3 = ((20 ft) × 0.017 lbs/ft + (25 ft) × 0.037 lbs/ft+(45 ft) × 0.071 lbs/ft) × 1.3 = (0.34 lbs + 0.925 lbs + 3.195 lbs) × 1.3 = (4.46 lbs ) × 1.3 = 5.798 lbs

Lx : Actual total length of liquid pipe Ø1/4" (ft) Ly : Actual total length of liquid pipe Ø3/8" (ft) Lz : Actual total length of liquid pipe Ø1/2" (ft)

L4 L5 L6 L7

048 type 036 type 018 type 015 type

29-EN 30-EN

1. All service valves on the outdoor units should remain fully closed.

2. R410A refrigerant should be added (in liquid state) at the liquid line service port on the header unit.

3. If the calculated amount of refrigerant can added to the system, the charging process is finished.

4. If the total calculated amount of refrigerant cannot be added to the system, close the valve on the refrigerant bottle, move the charging hose from the liquid line service port to the suction line service port.

5. Open the suction and liquid service valves on the header unit and start the system in cooling mode.

6. Slowly open the valve on the refrigerant bottle and carefully release liquid refrigerant into the suction service port.

7. If the total calculated charge amount is added completely to the system, the charging process is finished.

■ Full opening of the valve

Open the valves of the outdoor unit fully.

MAP096 MAP120 MAP144 MAP168

Balance pipe

Liquid side

MAP072

Packed valve

Using a 4 mm-hexagonal wrench, fully open the valve shaft.

Ø1/2" packed valve

Using a 4 mm-hexagonal wrench, fully open the valve shaft.

Ø5/8" packed valve

Using a 5 mm-hexagonal wrench, fully open the valve shaft.

■ Pipe insulation

• Apply pipe insulation separately to liquid, gas, and balance lines.

• All insulation should have a minimum temperature rating of 248°F (120°C).

■ Finishing pipe work

1. After all piping and insulation is complete. Fill the remaining gap at the piping panel with silicon sealer.

2. If the piping was routed down or to the side, the remaining gap should be filled with silicon sealer.

When not using the piping cover

Piping/wiring panel

Pipe routed to side

Fill space with silicon sealer

Pipe routed to front

Pipe routed down

8 Electric wiring

WARNING

The equipment shall be installed in compliance with NEC and local codes.

CAUTION

• Do not connect high voltage power wires to the control terminal blocks (U1, U2, U3, U4, U5, U6);

• All ﬁ eld wiring insulation rating must comply with NEC and local codes.

• All wiring must be strained relieved as speciﬁ ed by NEC and local codes.

• Refrigerant piping and control wiring should use the same routing.

• Do not energize the indoor units until leak check and vacuuming are completed.

• For indoor unit power and control wiring see indoor unit installation instructions.

NOTE

Discharge gas side

Ball valve

Using a flathead screwdriver, turn it counterclockwise by 90° until it hits the stopper. (Full open)

Service port

(1)

(2)

Ball valve

Using a wrench, turn the valve shaft counterclockwise by 90° until it hits the stopper. (Full open)

Valve unit

Using ﬂathead screwdriver, turn it counterclockwise by 90° until it hits the stopper. (Full open)

Flare nut

Position of screwdriver slot

Fully closed Fully opened

* When opened fully, do not apply excessive

torque after the screwdriver hits the stopper; otherwise a problem may be caused on the valve. (3.7 ft•lbs (5 N•m) or less)

Slot

• Use copper supply wires.

• Use UL wires rated 600V for the system interconnection wires.

• Use UL wires rated 300V for remote control wires.

Suction gas side

Fully closed Fully opened

31-EN 32-EN

– 16 –

■ Power supply speciﬁ cations

Every outdoor unit must have a dedicated power supply.

L1L2L3 L1L2L3 L1L2L3

Main power circuit

breaker

◆ Power wiring selection

Model name

(Standard Model)

MMY-MAP0726FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 23.3 30 MMY-MAP0966FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 34.2 40 MMY-MAP1206FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 45.4 50 MMY-MAP1446FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 52.1 60 MMY-MAP1686FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 66.2 70 MMY-AP1926FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 34.2 + 34.2 40 + 40 MMY-AP2166FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 45.4 + 34.2 50 + 40 MMY-AP2406FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 52.1 + 34.2 60 + 40 MMY-AP2646FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 52.1 + 45.4 60 + 50 MMY-AP2886FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 52.1 + 52.1 60 + 60 MMY-AP3126FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 66.2 + 52.1 70 + 60 MMY-AP3366FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 45.4 + 45.4 + 34.2 50 + 50 + 40 MMY-AP3606FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 45.4 + 45.4 + 45.4 50 + 50 + 50 MMY-AP3846FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 52.1 + 45.4 + 45.4 60 + 50 + 50 MMY-AP4086FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 52.1 + 52.1 + 45.4 60 + 60 + 50 MMY-AP4326FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 52.1 + 52.1 + 52.1 60 + 60 + 60 MMY-AP4566FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 66.2 + 52.1 + 52.1 70 + 60 + 60

Model name

(Space Saving Model)

MMY-AP192S6FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 45.4 + 23.3 50 + 30 MMY-AP240S6FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 45.4 + 45.4 50 + 50 MMY-AP288S6FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 66.2 + 45.4 70 + 50 MMY-AP336S6FT9P-UL 208/230 V 3 ~ 60 Hz 187 253 66.2 + 66.2 70 + 70

Power Supply Voltage Range

Nominal

Voltage

Phase and

frequency

Power Supply Voltage Range

Nominal

Voltage

Phase and

frequency

Disconnect per NEC and local codes.

MCA: Minimum Circuit Amps

MOCP: Maximum Overcurrent Protection (Amps)

Min.

(V)

Min.

(V)

Max.

(V)

Max.

(V)

MCA

(A)

MCA

(A)

MOCP

(A)

– 17 –

Power supply for

outdoor units

■ Speciﬁ cations for control wiring

Outdoor unit Header outdoor

Central remote device (option)

U1 U2 U3 U4

Single port FS unit Single port FS unit Single port FS unit Single port FS unit

Indoor unit

CN02

U1 U2 A B U1 U2 A B U1 U2 A B U1 U2 A B

CN81

Remote control Remote control Remote control

CN81 U1 U2 A B CN81 U1 U2 A B CN81 U1 U2 A B CN81 U1 U2 A B

Remote control Remote control Remote control Remote control

Indoor unit

AB AB AB

Indoor unit

AB AB AB AB

CN02

CN81

Outdoor unit Follower outdoor

W1 Control wiring between indoor and outdoor units (Shield wire) W2 Control wiring between indoor units (Shield wire) W3 Control wiring between outdoor units (Shield wire)

*1 When perform a central control, connect a relay connector

CN02

Indoor unit

between [U1, U2] and [U3, U4] terminals in the header unit. (At shipment from factory : No connection) *2 Connection of shield wire must be connected

(Connected to all connecting sections in each Indoor unit) *3 Group control

CN02

CN81

AB AB AB AB

Multi port FS unit (4 port)

CN81

Indoor unit

Incorrect

NOTE

Be sure to follow the above specifications when plugging in.

33-EN 34-EN

1. All system interconnecting and central control wiring should be 2 conductor shielded cable.

2. On the header unit the control wire shield and the central control wire shield should both be connected to the same ground screw in the header unit.

3. The remote control wiring can be 2 conductor un-shielded cable.

4. All system interconnecting and control wiring should be sized per table 5, 6 and 7.

5. Control wire and power line wire between Flow selector unit and indoor unit are the accessory parts of single port Flow selector unit. (Wire length : 20 ft (6 m))

If the length between indoor unit and Flow selector unit exceeds 16 ft (5 m), connect by using the Connection

cable kit sold separately (RBC-CBK15UL). (Except Multi port FS unit)

Restriction of control wiring

Be sure to keep the rule of below tables about size and length of control wiring.

Central

control device

Outdoor

unit

Indoor

unit

U3 U4

U1 U2 U5 U6

U1 U2

Remote

control

Header unit

U3 U4

U1 U2 U5 U6

U1 U2

Header unit

Super modular multi system

Follower

unit

U3 U4

U1 U2 U5 U6

U1 U2

Remote

control

U3 U4

U1 U2

Table-1

Table-3

U3 U4

U1 U2 U5 U6

U1 U2

Remote

control

Header unit

U1 U2

Follower unit

U3 U4

U1 U2 U5 U6

Table-2

Table-3

U1 U2

Multi port FS unit

Table-3

A BA BA B

Table-5 Control wiring between indoor and outdoor units (L1, L2, L3), Central control wiring (L4)

Wiring 2-core Type Shielded cable Size/Length AWG16: Up to 3280 ft (1000 m) AWG14: Up to 6560 ft (2000 m) (*1)

(*1): Total length of control wiring length for all refrigerant circuits (L1 + L2 + L3 + L4)

Table-6 Control wiring between outdoor units (L5)

Wiring 2-core Type Shielded wire Size/Length AWG16 to AWG14 / Up to 330 ft (100 m) (L5)

■ Connection of power supply wires and control wires

Power supply wires

Wire clamp

Power supply

terminal block

Ground screw

Control wire

terminal block

Control wires

Wire clamp

Power supply

terminal block

Ground screw

Control wire

terminal block

Wire clamp

Control wires

Conduit

(MAP072, MAP096, MAP120) (MAP144, MAP168)

NOTE

Separate power supply wires and control wires.

◆ Power supply wire connection

1. Connect the power supply conduit to the field wiring panel.

2. Route the power supply wiring through the raceway and connect to the power supply terminal block and ground screw.

3. Use ring terminals on field power wires if required by NEC and local codes.

A Knockout for power supply wires

(When using wire size AWG 14, AWG 12, or AWG 10.)

B Knockout for power supply wires

(When using wire size AWG 8, AWG 6, or AWG 4.)

Knockout for control wires

Piping/wiring panel

Power supply wires

Wire clamp

Conduit

Table-7 Remote control wiring (L6, L7), Multi port FS unit wiring (L8)

Wiring 2-core, non-polarity Type AWG20 to AWG14

• Up to 1640 ft (500 m) (L6 + L7)

• Up 1310 ft (400 m) in case of wireless remote control in group control.

Size/Length

35-EN 36-EN

• Up to 660 ft (200 m) total length of control wiring between indoor units and Multi port FS unit (L6+L8)

• Up to 980 ft (300 m) (L6 + L7 + L8)

• Up to 980 ft (300 m) (L7)

– 18 –

NOTE

Bundle the control wires in the cutout so that they do not get caught in the electrical control box cover.

– 19 –

Screw size and tightening torque

Screw size

Power supply terminal M8 4.1 to 4.8 (5.5 to 6.6) Ground screw M8 4.1 to 4.8 (5.5 to 6.6)

Tightening torque

ft•lbs (N•m)

◆ Precautions when knocking out knockout holes

• After knocking out the hole to the other side, remove the burr, then we recommend you to paint around the edge with the repair paint to prevent the rusting.

◆ Control wire connection

1. If conduit is required for the control wiring, connect it to the field wiring panel.

2. If conduit is not required, route the control wiring directly through the field wiring panel.

3. Connect all control wiring to the system interconnecting terminal block and connect the shield to the ground screw.

INDOOR

SHIELD SHIELD

UNIT

Screw size and tightening torque

control wire terminal M4 0.6 to 0.7 (0.80 to 0.96)

CENTRAL

CONTROLLER

U6SS

OUTDOOR

UNIT

Screw size

U5, U6: Control wiring between outdoor units

U3, U4: Central control device S: Shield wire earth

1, U2: Control wiring between Indoor/Outdoor units

Tightening torque

ft•lbs (N•m)

9 Address setting

CAUTION

• Complete all electric wiring before setting the addresses.

• To set the addresses correctly, the indoor units must be energize before the outdoor units are energized. Failure to follow this procedure will result in an “E19” check code being displayed on the outdoor unit control board.

• It normally takes 5 minutes to automatically address one refrigerant line, however this process could take as long as 10 minutes.

• Simply energizing the system components does not initiate the address process.

• It is not required to run the unit during the address process.

• The address process can be done automatically or manually.

WARNING

• Electrical shock hazard - the electrical control box contains high voltage parts. All adjustments for address setting should be made through the access cover. Do not remove the electrical control box cover.

• After completing the address setting the access cover should be closed and secured using the screw provided.

■ Automatic address setting

Without central control use Address setting procedure 1 or with central control of 1 refrigerant lines (Example 1) : With central control of 2 refrigerant lines (Example 2) : use Address setting procedure 2

Example 1 Example 2

Address setting procedure

When a single refrigerant line is centrally

controlled

See procedure 1 See procedure 2

Access cover

Electrical control box cover

When 2 or more refrigerant lines are centrally

controlled

Access cover screw

Outdoor

Control wiring diagram

37-EN 38-EN

Indoor Indoor Indoor Indoor

Remote

control

Remote

control

OutdoorCentral

Remote

control

Central control

Outdoor

Indoor Indoor Indoor Indoor

Remote

control

Remote

control

Outdoor

Remote

control

Central control

◆ Address setting procedure 1

◆ Address setting procedure 2

1 Energize indoor units ﬁ rst, and then energize outdoor units. 2 About one minute after energizing the outdoor units, conﬁ rm that the 7-segment display on the

interface P.C. board of the header outdoor unit indicates

U. 1. L08

. The U.1. will be ﬂ ashing.

3 Press SW 15 to start the automatic address setting.

It normally takes 5 minutes, but may takes as long as 10 minutes to complete the auto address setting for 1 refrigerant line.

4 The 7 segment display will indicate

Auto 1 → Auto 2 → Auto 3

. When the address sequence has covered all the fan coils for a refrigerant line auto - the 7 segment display will indicate When the ﬂ ashing stops and the display indicates

U. 1.

ﬂ ashing.

U. 1.

without ﬂ ashing, the address setting is

complete.

Interface P.C. board on the header outdoor unit

SW05 SW15

SW04

D600 D601 D602 D603

D604

SW02 SW03

SW01

REQUIREMENT

• When 2 or more refrigerant lines are controlled as a group (using, 1 remote control), be sure to turn on all the indoor units in the group before setting the addresses. (Note: the group control of more than two refrigerant systems is possible only when all the FS units are single port type.)

• If the unit address of each refrigerant line is set separately, then the header unit for each line will be set separately. In this case the remote control will display CODE No. “L03” indicating “indoor header unit overlap” when the system starts running. When this happens the group address must be changed to make only one unit the header unit. This operation is done using the wired remote control.

(Example) Controlling 2 or more refrigerant lines as a group

System wiring diagram

Outdoor

Indoor Indoor Indoor Indoor

Remote

control

Outdoor

(Group control)

39-EN 40-EN

– 20 –

1 Set a system address for each system using SW 13 and 14 on the interface P.C. board for the

header outdoor unit of each system. (Factory default: Address 1)

NOTE

Set a unique address for each system. Do not reuse any address from another system (refrigerant line).

Interface P.C. board on the header outdoor unit

SW06 SW07 SW09 SW10

12 34 1 234 12 34 1 234

SW11 SW12 SW13 SW14

12 34 1 234 12 34 1 234

Switch settings for a line (system) address on the interface P.C. board for the outdoor unit

(✕: switch OFF)

Line (system) address

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 ON 18 ON ON 19 ON 20 ON ON ON 21 ON 22 ON ON 23 ON 24 ON ON ON ON 25 ON 26 ON ON 27 ON 28 ON ON ON

SW13 SW14

41234

✕✕✕✕✕

✕✕

✕✕✕

✕✕

✕✕✕✕

✕✕

✕✕✕

✕✕

ON ON

ON ON ON

ON ON

ON ON ON ON

✕✕✕✕

✕✕

✕✕✕

ON ON

✕✕

ON ON ON

✕✕✕

ON ON

✕✕

ON ON

ON ON ON ON

✕✕

ON ON

ON ON ON ON

– 21 –

2 The connectors between the [U1U2] and [U3U4] terminals on all the header outdoor units (that

will be connected to the central control) should be open as shown.

INDOOR

UNIT

CENTRAL

CONTROLLER

U6SS

OUTDOOR

UNIT

SHIELDSHIELD

3 Energize indoor units ﬁ rst, and then energize outdoor units. 4 About 1 minute after turning energizing the outdoor units, conﬁ rm that the 7-segment display

on the interface P.C. board of the header outdoor unit indicates ﬂ ashing.

U. 1. L08

. The U.1. will be

5 Press SW15 to start the automatic address setting.

It normally takes 5 minutes, but may take as long as 10 minutes to complete the auto address setting for 1 refrigerant line.

6 The 7 segment display will indicate

Auto 1 → Auto 2 → Auto 3

. When the address sequence has covered all the fan coils for a refrigerant line auto - the 7 segment display will indicate When the ﬂ ashing stops and the display indicates

U. 1.

ﬂ ashing.

U. 1.

without ﬂ ashing, the address setting

is complete.

7 Repeat steps 4 to 6 for every refrigerant line in the system. 8 After completing address setting of all systems, turn off DIP switch 2 of SW30 on the interface

P.C. boards of all the header outdoor units connected to the same central control, except the unit that has the lowest address.

9 Close the connectors between the [U1, U2] and [U3, U4] terminals on all the header outdoor

units (As shown).

INDOOR

UNIT

CENTRAL

CONTROLLER

OUTDOOR

UNIT

U6SS

SHIELDSHIELD

10 Set the central control address.

(For setting the central control address, refer to the installation manuals for the central control devices.)

Header unit interface P.C. board

SW15

SW04

SW05

7-segment

display

SW13 SW14

D600 D601 D602 D603 D604

SW01 SW02

SW03

41-EN 42-EN

SW30

Switch setting (setting example when controlling 2 or more refrigerant lines centrally)

Outdoor units (setting manually)

Outdoor unit’s interface

P.C. board

SW13, 14 (See chart on page 20) (Line (system) address)

DIP switch 2 of SW30 (See the figure on page 21) (Terminator of indoor/ outdoor system interconnecting line and central control line)

Connector

Header unit Follower unit Header unit Follower unit Header unit Factory default

Connect after

setting

addresses.

(No setting

required)

(No setting

required)

Open

Set to OFF

after setting

addresses.

Connect after

setting

addresses.

*The items in bold font must be set manually.

(No setting

required)

(No setting

required)

Open

3 1

Set to OFF

after setting

addresses.

Connect after

setting

addresses.

Open

■ Manual address setting using a remote control

This procedure should be used if the indoor unit wiring is completed and the outdoor unit wiring has not been started. For this procedure the group remote control should not be connected. One individual remote control should be used to set the address on each individual indoor unit (one unit at a time), by wiring the remote control directly to the indoor unit that is to be addressed. When the address setting procedure is completed for the individual indoor units the group remote control should be connected as shown.

CAUTION

Connector

Do not close the connectors between the (U1, U2) and (U3, U4) terminals before completing all refrigerant line address setting. If a connector is closed the address cannot be set correctly.

Header unit 1 Follower unit 1 Follower unit 2Header unit 2

U3 U4 U3 U4 U3 U4 U3 U4 U3 U4

U1 U2

U5 U6 U1 U2 U5 U6 U1 U2 U5 U6 U1 U2 U5 U6 U1 U2

Connector

Remote

control

Indoor units (automatic setting)

Line (system) address 1 1 2 2 3 Indoor unit address 1 2 1 2 1 Group address 0 0 1 2 0

Individual

Remote

control

Connector

Remote

control

Group

Header unit 3

U5 U6

Connector

2U1U2U1U2U1U2U1U2U1U

BABABABAB

Remote

control

Central control

▼ Wiring example for 2 refrigerant lines

(Note: the group control of more than two refrigerant systems is possible only when all the FS units are single port type.)

Refrigerant line 1

Outdoor

unit

Indoor unit 1 Indoor unit 2 Indoor unit 3 Indoor unit 1 Indoor unit 2

Remote

control

Line (system) address 1 1 1 2 2 Indoor unit address 1 2 3 1 2

Group address

Header unit2Follower unit2Follower unit2Follower unit2Follower unit

Refrigerant line 2

Outdoor

unit

43-EN 44-EN

– 22 –

– 23 –

SET

SET DATA

2, 5, 8

TEMP.

4, 7, 10

FILTER

TEST

buttons

RESET

Turn on the power.

button.

SET

, CL, and

In case of group

}

control

1 Push and hold the

at the same time for more than 4 seconds.

The LCD display will start ﬂ ashing.

To set-line (system) address

2 Push the TEMP. / buttons

repeatedly to set the CODE No. to .

3 Push the TIME / buttons repeatedly to

set a system address.

(Match the address with the address on the interface P.C. board of the header outdoor unit in the same refrigerant line.)

4 Push

SET

(This saves the setting.)

button.

To set-indoor unit address

5 Push the TEMP. / buttons

repeatedly to set the CODE No. to .

6 Push the TIME / buttons repeatedly to

set an indoor unit address.

7 Push the

(This saves the setting.)

SET

To set-group address

8 Push the TEMP. / buttons

repeatedly to set the CODE No. to .

9 Push the TIME / buttons repeatedly to

set a group address. If the indoor unit is individual, set the address to ; header unit, ; follower unit, .

Individual : 0000 Header unit : 0001 Follower unit : 0002

10 Push the

(This saves the setting.)

SET

UNIT No.

R.C. No.

CODE No.

ON / OFF

3, 6, 9

DATA

SETTING

TIMER SET

TIME

TEST

SET CL

11 Push the

The address setting is complete. (

SETTING

NOTE

1. Do not use address numbers 29 or 30 when setting

system addresses using the remote control. These 2 address numbers cannot be used on outdoor units and the CODE No. [E04] (Indoor/ outdoor communication trouble) will appear if they are mistakenly used.

2. If addresses to indoor units are set in 2 or more refrigerate lines manually by using the remote control and will control them centrally, set the header outdoor unit of each line as below.

• Set a system address for the header outdoor unit

of each line with SW13 and 14 of their interface P.C. boards.

• Turn off DIP switch 2 of SW30 on the interface

P.C. boards of all the header outdoor units connected to the same central control, except the unit that has the lowest address. (For unifying the termination of the wiring for the central control of indoor and outdoor units)

• Connect the relay connectors between the [U1,

U2] and [U3, U4] terminals on the header outdoor unit of each refrigerate line.

• After finishing all the settings above, set the

address of the central control devices. (For the setting of the central control address, refer to the installation manuals of the central control devices.)

TEST

button.

ﬂ ashes. The unit can be controlled after

has disappeared.)

■ Using the remote control to review the address and position of an indoor unit

How to determine an indoor unit address if the unit position is known.

This instruction works for indoor units that have individual, or group control. This must be done while the units are operating.

CODE No.

UNIT No.

No.

FILTER RESET

TEMP.

TEST

TIMER SET

TIME

SET

°F

ON / OFF

2,4

1 If the unit is “OFF” turn it “ON” 2 Push the left end of the “UNIT LOUVER

” button.

3 Unit number will be indicated on the

control LCD as shown above. The numbers will disappear after a few seconds. The numbers indicate the system address and the unit address for the indoor unit in question.

4 If 2 or more indoor units are connected to

a group control the address for the next consecutive unit will appear each time the

left end of the “UNIT LOUVER button is pushed.

ON / OFF

”

How to determine an indoor unit position if the unit address is known.

This instruction works for group controlled units only. This instruction must be done while the units are not operating.

FILTER RESET

UNIT No.

R.C. No.

CODE No.

ON / OFF

DATA

SET

SETTING

TEMP.

TIMER SET

TIME

SET CL

TEST

6 2

1 If the unit is “ON” turn it “OFF” 2 Simultaneously push and hold the “VENT

VENT

” and “TEST

than 4 seconds.

3 “ALL ” will appear on the control LCD

display. The fans and louvers of all the indoor units in the control group will be activated.

4 Push the left end of the “UNIT LOUVER

” button.

5 Each time the left of the button is pushed

the next consecutive indoor unit address (in the group) will be displayed. While the address is displayed the fan and louvers for that indoor unit will operate. For all other units in the group the fan and louvers will stop.

6 Push the “TEST

procedure. All the indoor units in the control group will stop.

TEST

” buttons for more

TEST

” button to ﬁ nish the

4,5

ON / OFF

45-EN 46-EN

▼ How to use a single remote control to check

all the indoor unit address when 2 or more refrigerant lines are connected to a central control.

This must be done while the units are not operating. Use this method to check the indoor unit address and position for each indoor unit on a single refrigerant line.

DATA

SET

SETTING

TEMP.

TIMER SET

FILTER RESET

TIME

TEST

SET

1 Simultaneously push and hold the

“TIME

” and “TEST

CODE No.

UNIT No.

R.C. No.

ON / OFF

TEST

” buttons for more

5 6

than 4 seconds.

2 The LCD will display “LINE ” and

“CODE No. ”.

3 Push the left end of the “UNIT LOUVER

” button and the “SWING/FIX

repeatedly to select a system address.

4 Push the “SET

SET

” button to conﬁ rm the address selection. The address of an indoor unit that is connected to the selected refrigerant line will be displayed on the LCD. The fan and louvers for that unit will be energized.

SWING/FIX

5 Each time the left end of the “UNIT LOUVER

” button is pushed the indoor unit numbers of the selected refrigerant line are displayed consecutively. The fan and louvers of the selected unit will be energized.

6 Push the “CL

and select another refrigerant line and follow steps 3 to 5 to check indoor unit addresses for that line.

7 Push the “TEST

procedure.

47-EN 48-EN

” button to return to step 3

TEST

” button to ﬁ nish the

■ How to change an indoor unit address by using a wired remote control

Use this method to change the address of indoor units (one to one or group control) that have had the original address set automatically. This procedure must be done while the units are not operating.

DATA

SET

SETTING

TEMP.

3 5

Finish

FILTER RESET

TIMER SET

TIME

SET CL

TEST

1 Simultaneously push and hold the “SET

SET

”, “CL CL”, and “TEST

CODE No.

UNIT No.

R.C. No.

ON / OFF

2, 6, 7

TEST

” buttons for more than 4 seconds. If there are 2 or more units in a group, the ﬁ rst “UNIT No.” indicated is the header unit.

2 Push the left end of the “UNIT LOUVER

”

” button repeatedly to select an indoor unit address to change. If 2 or more units are controlled in a group the fan and louvers of the selected unit will be energized.

3 Push the TEMP. / buttons

repeatedly to select for CODE No..

4 Push the TIME / buttons repeatedly

to change the value indicated in the SET DATA section.

5 Push the “SET

SET

” button, to save address.

6 Push left and of the “UNIT LOUVER ”

button repeatedly to select another indoor unit addresses to change. Repeat steps 4 through 6 to continue changing indoor unit address and make each of them unique.

7 Push the left end of the “UNIT LOUVER

” button to review/conﬁ rm the revised addresses.

– 24 –

8 If the addresses have been changed

correctly, push the “TEST

SET

” button to

ﬁ nish the procedure.

▼ How to change indoor unit address for 2 or

more refrigerant lines (that are interconnected for central control), when the original addresses were set automatically, by using single wired remote control. This must be done while the units are not operating.

UNIT No.

R.C. No.

CODE No.

ON / OFF

FILTER RESET

SET

DATA

SETTING

TEMP.

TIMER SET

TIME

SET

TEST

1 Simultaneously push and hold the “TIME

” and “TEST seconds. “LINE ” and “CODE No. ” will be displayed on the LCD.

2 Push the left end of the “UNIT LOUVER

” button and the “SWING/FIX

repeatedly to select a system address.

3 Push the “SET

of one of the indoor units on the selected refrigerant line will be displayed on the LCD in the “SET DATA” ﬁ eld. The fan and louvers of the addressed unit will operate.

SET

4 8

Finish

FILTER

RESET

Cancels the line selection

TEST

” for more than 4

SET

” button and the address

DATA

SETTING

TEMP.

TIMER SET

TIME

SET CL

TEST

5, 7

CODE No.

UNIT No.

R.C. No.

ON / OFF

Press to ﬁ nish setting.

SWING/FIX

4 Push the “TIME / ” buttons repeatedly

to change the value of the indoor unit address in SET DATA. Change the value in SET DATA to that of a new address.

5 Push the “SET

SET

” button to conﬁ rm the

new address in SET DATA.

6 Push the left end of the “UNIT LOUVER

” button repeatedly to an address to change. Each push of the button indicates another indoor unit address in the selected refrigerant line. When an indoor unit address is selected for change the fan and louvers of that unit will operate. Repeat steps 4, 5 and

6 to change an indoor unit address.

Each address must be unique.

7 Push the “SET

changed addresses.

8 Push the “TEST

procedure.

”

SET

” button to save the

TEST

” button to ﬁ nish the

– 25 –

■ Resetting to factory default address

Method 1

Follow steps 1 through 11 by using a direct wired remote control (page 22) to reset line (system) address, indoor unit addresses and group addresses to “0099”.

Method 2

Clearing all the indoor unit addresses on a single refrigerant line and reset all addresses to the factory default settings follow the steps below:

1. To turn off the refrigerant line and reset all address to the factory default settings follow the steps below: A. On the header outdoor unit, open the connector between (U1, U2) and (U3, U4) terminals. B. On the header outdoor, interface PC board, SW30 DIP switch 2, set to ON.

Central control

U1U3U2

Header unit

U2 U5

Remote

control

Follower unit Follower unit

U1 U2U5U6

U1 U2

A B

Remote

control

Header unit

U3 U4

U2 U5 U6

Remote

control

Indoor units to have their addresses initialized

U3 U4

U1U2U5 U6

Header unit

U1 U2

A B

Remote

control

U5 U6

1 Turn on the indoor and outdoor units of the refrigerant line for which initialize the addresses to

be initialized. About one minute after turning on the power, conﬁ rm that the 7-segment display on the header outdoor unit indicates “U.1. - - -” and operate the interface P.C. board on the header outdoor unit of the refrigerant line as follows:

SW01 SW02 SW03 SW04 Clearable addresses

212

222

Confirm that the 7-segment display indicates “A.d.buS” and turn SW04 ON for more than five seconds. Confirm that the 7-segment display indicates “A.d.nEt” and turn SW04 ON for more than five seconds.

System/indoor unit/group address

Central control address

2 Conﬁ rm that the 7-segment display indicates “A.d. c.L.” and set SW01, SW02 and SW03 to 1, 1, 1

respectively.

3 After a time “U.1.L08” appears on the 7-segment display if the address clearing has been

completed successfully.

4 Set the addresses again after ﬁ nishing the clearance.

■ Setting when connecting indoor units to FS (Flow Selector) unit

◆ Cautions to connection of indoor

unit

• When connecting the indoor units to a single port type FS unit and a branch of the multi port type FS unit, it is necessary to set up the CODE No.. Be sure to set up the CODE No. after setup of address.

• When connecting the indoor units to a single port type FS unit and a branch of the multi port type FS unit, it is possible to connect with multiple groups and connect individually.

Single port type FS unit

Control wiring between indoor unit and FS unit (Within 49 ft (15 m))

Multi port type FS unit

Single port type FS unit

Control wiring between indoor unit and FS unit

Remote control

Group control

Remote control

Piping

Remote control

Group control

Single port type FS unit

Piping

Group control

Indoor unit

Incorrect

◆ How to set up CODE No. [ 0E ]

It is necessary to set up in case of the group control.

2 5

3 4 1

1 Push and hold the , , and buttons at

the same time for more than 4 seconds.

•

is displayed in the UNIT No. window.

•

In this time, the fans of all the indoor units in the group control start the fan operation.

2 Using the set temperature buttons /

, select the CODE No. “ ”.

3 Change SET DATA to “ ” by the timer

buttons / .

4 Push button. 5 Push button. Then the setup ﬁ nished.

◆ How to set up CODE No. [ FE ]

In cases other than connecting with one indoor unit or one group in one branching, it is necessary to set up.

• As for both single port type and multi port type, set up CODE No. “FE” in one branching within the range of 1~64. This CODE No. should not be duplicate in one system.

◆ How to set up CODE No. [ FD ]

In cases other than connecting with one indoor unit or one group in one branching, it is necessary to set up.

0 : Heating prioritized (Factory default) 1 : Cooling prioritized

49-EN 50-EN

▼ In case of FE/FD without setting

Single port type FS unit

Control wiring between indoor unit and FS unit (Within 49 ft (15 m))

Multi port type FS unit

Piping

Remote control

Group control

Piping

Indoor unit

▼ In case of FE/FD with setting

Single port type FS unit

Control wiring between indoor unit and FS unit (Within 49 ft (15 m))

Multi port type FS unit

Piping

Remote control

Group control

Piping

Indoor unit

◆ Caution to connection of indoor unit

When connecting the indoor units to a single port type FS unit and a branch of multi port type FS unit, it is necessary to set up the CODE No..

• When connecting the indoor units to a single port type FS unit and a branch of multi port type FS unit, group control and individual control are available.

[ 0E ] : Group setting

0 : Individual (Factory default) 1 : Group

[ FE ] : Branching system address (1~64)

• Should not be duplicate in one system

• Factory default : 99

[ FD ] : Priority operation mode

0 : Heating prioritized (Factory default) 1 : Cooling prioritized (The cooling is

prioritized even if setting only one unit in one branching)

Single port type FS unit

Control wiring between indoor unit and FS unit (Within 49 ft (15 m))

[ 0E ] : 1 1 1 [ FE ] : It is not necessary to set up [ FD ] : It is not necessary to set up

Multi port type FS unit

Piping

Indoor unit

Remote control

Group control

Piping

Indoor unit

Group control

Indoor unit

Remote control

Group control

Indoor unit

Single port type FS unit

Control wiring between indoor unit and FS unit (Within 49 ft (15 m))

Remote control

Group control

Remote control

Group control

Piping

Multi port type FS unit

Piping

Indoor unit

Remote control

Group control

51-EN 52-EN

– 26 –

◆ [ Set up example ]

< In case of connecting one indoor unit>

Single port type FS unit

Control wiring between indoor unit and FS unit (Within 49 ft (15 m))

[ 0E ] : It is not necessary to set up [ FE ] : It is not necessary to set up [ FD ] : It is not necessary to set up

Multi port type FS unit

[ 0E ] : It is not necessary to set up [ FE ] : It is not necessary to set up [ FD ] : It is not necessary to set up

Piping

Indoor unit

Remote control

Indoor unit

Remote control

[ 0E ] : 1 1 1 [ FE ] : It is not necessary to set up [ FD ] : It is not necessary to set up

Group control

Single port type FS unit

Control wiring between indoor unit and FS unit (Within 49 ft (15 m))

[ 0E ] : 1 1 1 1 [ FE ] : 1 1 1 1 [ FD ] : 0000

Multi port type FS unit

[ 0E ] : 1 1 1 1 [ FE ] : 1 1 1 1 [ FD ] : 0 0 0 0

Piping

Remote control

Group control Group control

Piping

Remote control

Group control Group control

Indoor unit

– 27 –

Single port type FS unit

Control wiring between indoor unit and FS unit (Within 49 ft (15 m))

[ 0E ] : 1 1 0 0 [ FE ] : 1 1 1 1 [ FD ] : 0 0 0 0

Multi port type FS unit

[ 0E ] : 1 1 0 0 [ FE ] : 1 1 1 1 [ FD ] : 0 0 0 0

Piping

Remote control

Group control

Piping

Remote control

Group control

Indoor unit

Single port type FS unit

Control wiring between indoor unit and FS unit (Within 49 ft (15 m))

[ 0E ] : 0000 [ FE ] : 1111 [ FD ] : 0000

Multi port type FS unit

Piping

Indoor unit

Remote control

Incorrect

Single port type FS unit

Control wiring between indoor unit and FS unit (Within 49 ft (15 m))

Piping

Remote control

Group control

Incorrect

Multi port type FS unit

Piping

Remote control

Group control

Incorrect

Multi port type FS unit

Piping

Indoor unit

Remote control

Group control

Incorrect

Multi port type FS unit

Indoor unit

Single port type FS unit

Multi port type FS unit

Indoor unit

10 Test run

CAUTION

• Turn on the power and turn on the case heater of the compressor. To save the compressor when it is activated, leave the power on for more than 12 hours.

■ Methods of test run

◆ A test run is executed by using a

remote control

Operate the system normally to check the running condition using the wired remote control. Follow the instructions in the supplied owner’s manual when operating the unit. If a wireless remote control is used for operations, follow the instructions in the installation manual supplied with the indoor unit. To execute a test run forcibly under the condition that the thermostat automatically turns the unit off due to the indoor temperature, follow the procedure below. The forcible test run will automatically stop after 60 minutes to prevent continuous forcible running and return to normal running.

CAUTION

Do not use forcible running except for a test run as it overloads the unit.

FILTER RESET

TEMP.

TEST

TIMER SET

TIME

SET CL

ON / OFF

2, 4

2 Push the 3 Push the

ON / OFF

button.

MODE

button to switch the running

mode to COOL or HEAT.

NOTE

• Do not run the unit in any mode other than COOL or HEAT.

• The temperature setting cannot be changed during the test run.

• Check codes are detected as usual.

TEST

4 Push the

ON / OFF

button to stop running after ﬁ nishing the trial run. The indication on the LCD display returns to the status of procedure 1.

5 Push the

TEST

button to exit the test mode. (TEST disappears on the LCD display and the status changes to normal stopped mode.)

Piping

Indoor unit

Remote control

[ 0E ] : 0000 [ FE ] : 1111 [ FD ] : 0000

53-EN 54-EN

Piping

Remote control

Indoor unit

Group control

1, 5

1 Push and hold the

4 seconds. TEST appears on the LCD and the unit enters the TEST mode.

TEST

button for more than

TEST

◆ When a test run is executed by using the interface P.C. board on the outdoor unit

A test run can be executed by operating switches on the interface P.C. board of the header outdoor unit. “Individual test”, which tests each indoor unit separately, and “collective test”, which tests all the indoor units connected, are available.

▼ Starting operation

1 Set the running mode to “COOL” or “HEAT”

on the remote control of the indoor unit to be tested. (The unit will run in the current mode unless the mode is set otherwise.)

7-segment display

[A]

[U1]

[B]

[ ]

2 Set the rotary switches on the interface P.C.

board of the header outdoor unit: SW01 to [16], SW02 and SW03 to the address of the indoor unit to be tested.

SW02 SW03 Indoor unit address

1 to 16 1 1 to 16 Set number of SW02 1 to 16 2 17 to 32 Set number of SW02 + 16 1 to 16 3 33 to 48 Set number of SW02 + 32 1 to 16 4 49 to 64 Set number of SW02 + 48

NOTE

• The running mode follows the mode setting on the remote control of the target indoor unit.

• The temperature setting cannot be changed during the test run.

• Check codes are detected as usual.

• The unit does not perform test run for 3 minutes after energized or terminating the operation.

▼ Finishing operation

1 Set the rotary switches on the interface P.C.

board of the header unit back: SW01 to [1], SW02 to [1] and SW03 to [1].

7-segment display

[A]

[U1]

[B]

[ ]

Collective test operation

▼ Start operation

1 Set the rotary switches on the interface P.C.

board of the header outdoor unit as below. When in “COOL” mode: SW01=[2], SW02=[5], SW03=[1]. When in “HEAT” mode: SW01=[2], SW02=[6], SW03=[1].

7-segment display

[A] [C ] [H ]

[B] [ ] [ ]

2 Push and hold SW04 for more than 2

seconds.

NOTE

• The temperature setting cannot be changed during the test run.

• Check codes are detected as usual.

• The unit does not perform test run for 3 minutes after turning the power on or stopping running.

7-segment display

[A] [C ] [H ]

[B] [ - C ] [ - H ]

▼ Stop operation

1 Set the rotary switches on the interface P.C.

board of the header unit back: SW01 to [1], SW02 to [1] and SW03 to [1].

7-segment display

[A]

[U1]

SW04

Push switch Push switch

7-segment display [A]

SW05 SW15

D600 D601 D602 D603 D604

SW01 SW02

SW03

[B]

[ ]

7-segment

display [B]

7-segment display

[A]

[ ]

Address display of the corresponding indoor unit



[B]

[ ]

Interface PC board

Rotary switches

3 Push and hold SW04 for more than 10

seconds.

7-segment display

[A]

[ ]

Address display of the corresponding indoor unit

55-EN 56-EN



[B]

[ ]

[FF] is displayed for 5 seconds.



– 28 –

– 29 –

11 Troubleshooting

In addition to the CODE No. on the remote control of an indoor unit, you can diagnose failure type of an outdoor unit by checking the 7-segment display on the interface P.C. board. Use the function for various checks. Set every DIP switch to OFF after checking.

7-Segment display and check code

Rotary switch setting value

SW01 SW02 SW03

1 1 1 Outdoor unit check code

Indication LED

B Check code display*

* If a check code has an auxiliary code, the display indicates the check code for three seconds and the auxiliary

code for one second alternately.

Check code (indicated on the 7-segment display on the outdoor unit)

Indicated when SW01 = [1], SW02 = [1], and SW03 = [1].

Check code

Auxiliary code

E06 Number of indoor units which received normally Decrease of number of indoor units E07 — Indoor/outdoor communication circuit trouble E08 Duplicated indoor addresses Duplication of indoor addresses.

01: Communication between indoor and outdoor units

E12

02: Communication between outdoor units

E15 — No indoor unit during automatic addressing

00: Capacity over

E16

01~: Number of connected units

E17 — Indoor/Flow selector unit communication trouble

00: Header is nothing

E19

02: 2 or more header units 01: Other line outdoor connected

E20

02: Other line indoor connected

E23 —

E25 — Duplicated follower outdoor address set up E26 Number of outdoor units which received normally Decrease of connected outdoor units E28 Detected outdoor unit No. Follower outdoor unit trouble E31 IPDU quantity information E31 80 Communication trouble between MCU and sub MCU F04 — TD1 sensor trouble F05 — TD2 sensor trouble

01: TE1 sensor

F06

02: TE2 sensor F07 01: TL1 sensor TL1 sensor trouble F08 — TO sensor trouble

(*1)

Automatic addressing start trouble

Capacity over / number of connected indoor units

Number of header outdoor unit trouble

Other lines connected during automatic addressing

Sending trouble between outdoor units communication

IPDU communication trouble

TE1 sensor trouble TE2 sensor trouble

D600

Outdoor unit number

Check code nameIndication on 7-segment display on the outdoor unit

D601 D602 D603 D604

1 to U3)

Check code

Check code nameIndication on 7-segment display on the outdoor unit

Auxiliary code

01: TS1 sensor

F12

02: TS2 sensor 01: Compressor 1

F13

02: Compressor 2 F15 — Outdoor temp. sensor miswiring (TE1, TL1) F16 — Outdoor pressure sensor miswiring (Pd, Ps) F23 — Ps sensor trouble F24 — Pd sensor trouble F31 — Outdoor EEPROM trouble

01: Compressor 1 H01

02: Compressor 2

01: Compressor 1 H02

02: Compressor 2

01: Compressor 1 H03

02: Compressor 2 H05 — TD1 sensor miswiring H06 — Low pressure protective operation

H07 Detected outdoor unit No.

01: TK1 sensor trouble

02: TK2 sensor trouble H08

04: TK4 sensor trouble

05: TK5 sensor trouble H15 — TD2 sensor miswiring

01: TK1 oil circuit trouble

02: TK2 oil circuit trouble H16

04: TK4 oil circuit trouble

05: TK5 oil circuit trouble J03 — Flow selector units duplicated J10 Flow selector units overflow trouble Flow selector units overflow trouble J11 — Flow selector TCS sensor trouble L02 Model mismatch of indoor and outdoor unit System shutdown trouble from indoor unit L04 — Outdoor system address duplication L06 Number of prior indoor units Duplication of indoor units with priority L08 — Indoor unit group/address unset L10 — Outdoor unit capacity unset. L12 01: Flow selector unit(s) installation trouble Flow selector unit(s) system trouble

00: — Inconsistent models of outdoor units L17

FE: Flow selector units connected capacity Flow selector units connected capacity over L18 Detected indoor unit address Flow selector unit trouble L23 01: Clean Converter setting trouble Setting trouble

d0: Duplication of flow selector unit address L24

d1: Indoor unit(s) operation mode priority setting L28 — Outdoor connected quantity over L29 IPDU number information L30 Detected indoor unit address External interlock of indoor unit L31 — Other compressor troubles

(*1)

TS1 or TS2 sensor trouble

TH (Heat sink) sensor trouble

Compressor breaking down

Compressor trouble (Locked)

Current detection circuit trouble

Oil level down detection (Indicated only on the header outdoor unit)

Temperature sensor trouble for oil level

Oil level detector circuit trouble

Flow selector unit(s) system trouble

IPDU quantity trouble

57-EN 58-EN

Check code

Check code nameIndication on 7-segment display on the outdoor unit

Auxiliary code

01: Compressor 1

P02

02: Compressor 2

P03 — Discharge temperature TD1 trouble

01: Compressor 1

P04

02: Compressor 2 00: Phase missing detection/Phase order trouble

P05

01: Compressor 1 02: Compressor 2

01: Compressor 1

P07

02: Compressor 2 P10 Detected indoor unit address Indoor overflow trouble P13 — Outdoor unit flow back trouble detected

01: TS condition P15

02: TD condition P17 — Discharge temperature TD2 trouble P19 Detected outdoor unit number 4-way valve inverse trouble P20 — High-pressure protective operation

#0: Element short circuit

#E: Vdc voltage trouble

#1: Position detection circuit trouble

#2: Input current sensor trouble

#3: Motor lock trouble P22

#C: Sensor temperature trouble (No TH sensor)

#4: Motor current trouble

#D: Sensor short circuit/release trouble (No TH

sensor) #5: Synchronization/step-out trouble *Put in Fan IPDU No. in [#] mark.

01: Compressor 1

P26

02: Compressor 2 01: Compressor 1

P29

02: Compressor 2

Boost circuit trouble

High-pressure SW system operation

Compressor Vdc trouble

Heat sink overheat trouble

Gas leak detection

Outdoor fan IPDU trouble

IPM short protection trouble

Compressor position detecting circuit trouble

*1 IPDU number information

01: Compressor 1 trouble 02: Compressor 2 trouble 03: Compressor 1 and 2 trouble 08: Fan 1 trouble 09: Compressor 1, Fan 1 trouble 0A: Compressor 2, Fan 1 trouble 0B: Compressor 1 and 2, Fan 1 trouble

11: Compressor 1, Fan 2 trouble 12: Compressor 2, Fan 2 trouble 13: Compressor 1 and 2, Fan 2 trouble 18: Fan 1 and 2 trouble 19: Compressor 1, Fan 1 and 2 trouble 1A: Compressor 2, Fan 1 and 2 trouble 1B: All

59-EN 60-EN

– 30 –

SMMS wave tool

“SMMS wave tool” is an application software (“Application”) for the Android OS smartphone and for those who install and do maintenance to the compatible air conditioning equipment. The Application enables checks of some of the system and data and test operations of compatible air conditioning equipment. Please check the information about compatible air conditioning equipment and smartphone from the below URL. Be sure to read the Operating Manual before the use of this Application, “SMMS wave tool”. You can download the Application and the Operating Manual from the below URL or QR code. QR code is a trademark or registered trademark of DENSO WAVE Inc. Android is a trademark or registered trademark of Google Inc.

URL: http://www.toshiba-carrier.co.jp/global/appli/smms_wave_tool/

NOTICE

• This Application enables the auto-address setup and the test operation of the outdoor unit by smartphone in 48 hours from the power input to the outdoor unit.

• You should decide whether to make use of this auto-address setup and test operation function at its own responsibility and also be sure to conﬁ rm notices in the Operating Manual before performing the test operation.

• If you want to disable the function of the auto-address setup and the test operation, perform the following operations.

• Refer to the service manual for setting change of the auto-address setup and the test operation function to be effective.

■Switch setting of some functions prohibition

Step

Rotary switch Push switch 7-segment display

SW01 SW02 SW03 SW04 [ A ] [ B ]

Condition

(1) 2 1 14 – [ nf ] [ c.00 ] Setting preparation

(2) 2 1 14

Press for more

than 5 secs

[ nf ] [ c.01 ] Setting completion

(3) 1 1 1 – [ U.1. ] [ - - - ] Return the switch

* Do it again if the 7-segment display is different from the above. * The functions other than the auto-address setup and test operation of this Application can work normally even

if the auto-address set up and test operation function are disabled.

CAUTION

• High voltage parts exist in the electrical control box. If you set Switch setting, set it from the access door cover of the electrical control box cover to avoid electric shock.

• After ﬁ nishing operations, slide the access door cover to the position before and ﬁ x it with the screw.

Access door cover

Cover of the electrical control box

Fixing screw for the access door cover

Push switch

7-segment display [A]

HOW TO USE

• This Application uses the NFC (Near Field Communication) function of smartphone.

• For the use, hold your smartphone to the “TOUCH” mark of the outdoor unit.

• Refer to the Operating Manual of the “SMMS wave tool” for the details.

Outdoor unit

NFC receiver for SMMS wave tool

SW04

SW05 SW15

D600 D601 D602 D603 D604

SW01 SW02

SW03

Rotary switches

Smartphone

QR code

7-segment display [B]

– 31 –

WARNINGS ON REFRIGERANT LEAKAGE

Check of Concentration Limit

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

The refrigerant R410A which is used in the air conditioner is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws to be imposed which protect the ozone layer. However, since it contains more than air, it poses the risk of suffocation if its concentration should rise excessively. Suffocation from leakage of R410A is almost non-existent. With the recent increase in the number of high concentration buildings, however, the installation of multi air conditioner systems is on the increase because of the need for effective use of ﬂ oor 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 (lbs (kg))

Min. volume of the indoor unit installed room (ft

≤ Concentration limit (lbs/ft

Concentration limit

Compliance to the local applicable regulations and standards for the concentration limit is required.

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 ((22lbs) 10kg)

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

Outdoor unit

e.g., charged amount (33lbs (15kg))

(kg/m3))

(m3))

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 ﬂ oor 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

Mechanical ventilation device - Gas leak detector

Small room

Medium room

Large room

Indoor unit

For the amount of charge in this example:

The possible amount of leaked refrigerant gas in rooms A, B and C is 22lbs (10kg). The possible amount of leaked refrigerant gas in rooms D, E and F is 33lbs (15kg).

61-EN 62-EN

TOSHIBA CARRIER (THAILAND) CO.,LTD.

144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI,

AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.

1122001101

Toshiba MMY-MAP1446FT9P-UL, MMY-MAP0726FT9P-UL, MMY-MAP1686FT9P-UL, MMY-MAP0966FT9P-UL, MMY-MAP1206FT9P-UL User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual