Mitsubishi HWE05030 Service Manual

Models

PQRY-P200, P250YGM-A PQRY-P400, P500YSGM-A CMB-P104, P105, P106, P108, P1010, P1013, P1016V-G CMB-P108, P1010, P1013, P1016V-GA CMB-P104, P108V-GB PQHY-P200, P250YGM-A PQHY-P400, P500YSGM-A

Service Handbook

AIR CONDITIONERS CITY MULTI

Service Handbook PQRY-P200, P250YGM-A

PQRY-P400, P500YSGM-A CMB-P104, P105, P106, P108, P1010, P1013, P1016V-G CMB-P108, P1010, P1013, P1016V-GA CMB-P104, P108V-GB PQHY-P200, P250YGM-A PQHY-P400, P500YSGM-A

Issued in Oct. 2005 HWE05030 Printed in Japan

New publication effective Oct. 2005.

Specifications subject to change without notice.

Service Handbook PQRY-P200, P250, P400, P500Y(S)GM-A

Contents

1 Read Before Servicing ................................................................ 6

[1] Items to Be Checked .............................................................. 6

[2] Necessary Tools and Materials .............................................. 7

[3] Piping Materials ...................................................................... 8

[4] Storage of Piping Material ...................................................... 10

[5] Piping Machining .................................................................... 11

[6] Brazing.................................................................................... 12

[7]

Airtightness Test

...................................................................... 13

[8] Vacuuming .............................................................................. 13

[9] Vacuum Drying........................................................................ 14

[10] Changing Refrigerant.............................................................. 15

[11] Remedies to be taken in case of a refrigerant leak................ 15

[12]

Characteristics of the Conventional and the New Refrigerants

.. 16

[13] Notes on Refrigerating Machine Oil........................................ 17

2 Restrictions .................................................................................. 18

[1] Electrical Work & M-NET control ............................................ 18

[2] Types of Switch Setting and Address Setting ........................ 19

[3] Examples of system connection ............................................ 22

[4] Restrictions on Refrigerant Piping Length.............................. 38

3 Components of the Heat source Unit .......................................... 52

[1] Appearance of the Components and Refrigerant Circuit........ 52

[2] Control Box ............................................................................ 57

[3] Circuit Board .......................................................................... 59

[4] BC controller (inside the panel) .............................................. 63

[5] BC control box ........................................................................ 66

[6] BC controller board ................................................................ 66

4 Remote Controller ........................................................................ 68

[1]

Functions and Specifications of MA and ME Remote Controllers

.... 68

[2] Group Setting and Interlocking Settings that are Made on

an ME Remote Controller...................................................... 69

[3]

Interlocking Setting via the MA Remote Controller

........................ 73

[4] Switching to the built-in Thermo on the remote controller ...... 76

5 Electrical Wiring Diagram ............................................................ 77

[1] PQRY-P200, P250YGM-A, PQRY-P400, P500YSGM-A ........ 77

[2] CMB-P104V-G ........................................................................ 78

[3] CMB-P105, 106V-G ................................................................ 79

[4] CMB-P108, 1010V-G .............................................................. 80

[5] CMB-P1013, 1016V-G ............................................................ 81

[6] CMB-P104V-GB...................................................................... 82

[7] CMB-P108V-GB...................................................................... 83

[8] CMB-P108, 1010V-GA............................................................ 84

[9] CMB-P1013, 1016V-GA.......................................................... 85

[10]Power Dispatching Extension Unit for the Transmission

Lines...................................................................................... 86

6 Refrigerant Circuit ........................................................................ 87

[1] Refrigerant Circuit Diagram .................................................... 87

[2] Functions of Principal Parts.................................................... 93

[3] BC controller .......................................................................... 95

7 Control.......................................................................................... 97

[1] Dip Switch Functions and Their Factory Settings .................. 97

[2] Controlling the Heat source Unit ............................................ 102

[3] Operation Flow Chart ............................................................ 114

8 Test Run ...................................................................................... 120

[1] Check Items before Test Run.................................................. 120

[2] Test Run Method .................................................................... 120

[3] Operating Characteristics and Refrigerant Amount................ 121

[4] Adjustment and Judgment of Refrigerant Amount ................ 121

[5] Refrigerant Volume Adjustment Mode Operation .................. 124

[6] Symptoms that do not Signify Problems ................................ 128

[7]

Standard Operation Data (Reference Data)

.............................. 129

9 Troubleshooting............................................................................ 133

[1] Check Code List .................................................................... 133

[2] Responding to Error Display on the Remote Controller ........ 135

[3] Investigation of Transmission Wave Shape/Noise .................. 170

[4] Troubleshooting of Principal Parts .......................................... 173

[5] Refrigerant Leak .................................................................... 204

[6] BC controller service instruction ............................................ 208

0 LED display .................................................................................. 211

[1] LED Monitor Display .............................................................. 211

Safety Precautions

Symbols used in the text

Warning:

Failure to follow all instructions may result in serious personal injury or death.

Caution:

Failure to follow all instructions may result in personal injury or damage to the unit.

Symbols used in the illustrations

: Indicates an action that must be avoided.

: Indicates that important instructions must be followed.

: Indicates a part which must be grounded.

: Beware of electric shock (This symbol is displayed on the main unit label.) <Color : Yellow>

Warning : Carefully read the labels affixed to the main unit.

Before installing the unit, be sure to carefully read all of the following safety precautions.

These precautions provide important information regarding safety. Be sure to follow them to ensure safety.

After reading this handbook, hand it over to those who will be using the unit. The user of the unit should keep this manual at hand and make it available to those who will be performing repairs or relocating the unit. Also, make it available to the new user when the user changes hands.

Be sure to carefully follow each step in this handbook when installing the unit.

• Improper installation may result in water leak,

electric shock, smoke or fire.

Securely attach the terminal cover (panel) on the unit.

• If installed improperly, dust and/or water may enter

the unit and present a risk of electric shock, smoke, or fire.

Only use Refrigerant R410A as indicated on the unit when installing or relocating the unit.

• The use of any other refrigerant or an introduction of

air into the unit circuit may cause the unit to run an abnormal cycle and cause the unit to burst.

Do not make any changes or modifications to the unit. In case of problems, consult the dealer.

• If repairs are not made properly, the unit may leak

water and present a risk of electric shock, or it may produce smoke or cause fire.

Have all electrical work performed by a licensed electrician according to the local regulations and the instructions given in this manual. Secure a circuit designated exclusively to the unit.

• Improper installation or a lack of circuit capacity may

cause the unit to malfunction or present a risk of electric shock, smoke, and fire.

Have the unit professionally installed.

• Improper installation by an unqualified person may

result in water leak, electric shock, or fire.

Only use specified cables for wiring. Securely connect each cable, and make sure that the cables are not straining the terminals.

• Cables not connected securely and properly may

generate heat and cause fire.

Place the unit on a stable, level surface that withstands the weight of the unit to prevent the unit from tipping over or falling causing injury as a result.

Take necessary safety measures against typhoons and earthquakes to prevent the unit from falling over.

- 1 -

When relocating the air conditioner, consult the dealer or a specialist.

• Improper installation may result in water leak,

electric shock, or fire.

• Consult the dealer for necessary measures to take.

After completing the service work, check for a refrigerant gas leak.

• If leaked gas refrigerant is exposed to a heart

source such as fan heater, stove, and electric grill, noxious gases may form.

In the event of a refrigerant gas leak, provide adequate ventilation to the room.

• If leaked refrigerant gas is exposed to a heat source,

noxious gases may form.

With All-Fresh type air conditioners, outdoor air may be directly blown into the room upon thermo off. Take this into consideration when installing the unit.

• Direct exposure to outdoor air may present a health

hazard, and it may also cause food items to deteriorate.

When installing the unit in a small room, safeguard against hypoxia that results from leaked refrigerant reaching the threshold level.

Precautions for Handling Units for Use with R410A

Caution

Warning : Carefully read the labels affixed to the main unit.

Do not try to defeat the safety features of the devices, and do not change the settings.

• Defeating the safety features on the unit such as the

pressure switch and temperature switch or using parts other than those specified by Mitsubishi Electric may result in fire or explosion.

Use refrigerant pipes made of C1220 phosphorus deoxidized copper categorized under H3000 (Copper and Copper Alloy Seamless Pipes and Tubes), a standard set by JIS. Keep the inner and outer surfaces of the pipes clean and free of contaminants such as sulfur, oxides, dust/dirt, shaving particles, oils, and moisture.

• Contaminants inside the refrigerant piping will cause

the refrigerant oil to deteriorate.

Do not use the following tools that have been used with the conventional refrigerants.Prepare tools that are for exclusive use with R410A. (Gauge manifold, charging hose, gas leak detector, reverse-flow check valve, refrigerant charge base, vacuum gauge, and refrigerant recovery equipment.)

• If refrigerant and /or refrigerant oil left on these tools

are mixed in with R410A, or if water is mixed with R410A, it will cause the refrigerant to deteriorate.

• Since R410A does not contain chlorine, gas-leak

detectors for conventional refrigerators will not work.

Only use specified parts.

• Have the unit professionally installed.

Improper installation may cause water leak, electric shock, smoke, or fire.

Use a vacuum pump with a reverse-flow-check valve.

• If other types of valves are used, the vacuum pump

oil will flow back into the refrigerant cycle and cause the refrigerator oil to deteriorate.

Do not use the existing refrigerant piping

• The old refrigerant and refrigerator oil in the existing

piping contain a large amount of chlorine, which will cause the refrigerator oil in the new unit to deteriorate.

• R410A is a high-pressure refrigerant, and the use of

the existing piping may result in bursting.

- 2 -

Before Installing the Unit

Warning

Caution

Store the piping to be used during installation indoors, and keep both ends of the piping sealed until immediately before brazing. (Keep elbows and other joints wrapped in plastic.)

• If dust, dirt, or water enters the refrigerant cycle, it

may cause the oil in the unit to deteriorate or may cause the compressor to malfunction.

Use a small amount of ester oil, ether oil, or alkylbenzene to coat flares and flange connections.

• A large amount of mineral oil will cause the

refrigerating machine oil to deteriorate.

Do not use a charging cylinder.

• The use of charging cylinder will change the

composition of the refrigerant and lead to power loss.

Exercise special care when handling the tools.

• An introduction of foreign objects such as dust, dirt,

or water into the refrigerant cycle will cause the refrigerating machine oil to deteriorate.

Only use R410A refrigerant.

• The use of refrigerants containing chlorine (i.e. R22)

will cause the refrigerant to deteriorate.

Use liquid refrigerant to charge the system.

• Charging the unit with gas refrigerant will cause the

refrigerant in the cylinder to change its composition and will lead to a drop in performance.

Do not install the unit in a place where there is a possibility of flammable gas leak.

• Leaked gas accumulated around the unit may start a

fire.

Do not use the unit to preserve food, animals, plants, artifacts, or for other special purposes.

• The unit is not designed to provide adequate

conditions to preserve the quality of these items.

When installing the unit in a hospital, take necessary measures against noise.

• High-frequency medical equipment may interfere

with the normal operation of the air conditioning unit or the air conditioning unit may interfere with the normal operation of the medical equipment.

Do not use the unit in an unusual environment.

• The use of the unit in the presence of a large

amount of oil, steam, acid, alkaline solvents, or special types of sprays may lead to a remarkable drop in performance and/or malfunction and presents a risk of electric shock, smoke, or fire.

• The presence of organic solvents, corroded gas

(such as ammonia, sulfur compounds, and acid) may cause gas or water leak.

Do not place the unit on or over things that may not get wet.

• When humidity level exceeds 80% or when the

drainage system is clogged, indoor units may drip water.

• Installation of a centralized drainage system for the

outdoor unit may also need to be considered to prevent water drips from the outdoor units.

- 3 -

Before Installing (Relocating) the Unit or Performing Electric Work

Caution

Warning

Do not spray water on the air conditioners or immerse the air conditioners in water.

• Water on the unit presents a risk of electric shock.

Install a breaker for current leakage at the power source to avoid the risk of electric shock.

• Without a breaker for current leakage, there is a risk

of electric shock, smoke, or fire.

Use wires that are specified in the installation manual.

• The use of other types of wires presents a risk of

electrical current leak, electric shock, smoke, or fire.

Periodically check the platform on which the unit is placed for damage to prevent the unit from falling.

• If the unit is left on a damaged platform, it may

topple over, causing injury.

Ground the unit.

• Do not connect the grounding on the unit to gas

pipes, water pipes, lightning rods, or the grounding terminals of telephones. Improper grounding presents a risk of electric shock, smoke, fire, or the noise caused by improper grounding may cause the unit to malfunction.

Use breakers and fuses (electrical current breaker, remote switch <switch + Type-B fuse>, molded case circuit breaker) with a proper current capacity.

• The use of large-capacity fuses, steel wire, or

copper wire may damage the unit or cause smoke or fire.

When installing draining pipes, follow the instructions in the manual, and make sure that they properly drain water so as to avoid dew condensation.

• If not installed properly, they may cause water leaks

and damage the furnishings.

Make sure the wires are not subject to tension.

• If the wires are too taut, they may break or generate

heat and/or smoke and cause fire.

Exercise caution when transporting products.

• Do not try to move equipments over 20kg (approx. 44 lbs.) alone.

• Do not use the PP bands used on some packages for transportation.

• Wear protective gloves to avoid injury caused by touching the fins on the heat exchanger with bare hands.

• When using a suspension bolt to transport the heatsource unit, use a four-point suspension. A threepoint suspension does not provide adequate stability and presents a risk of accidents.

Properly dispose of the packing materials.

• Things such as nails and wood pieces may be included in the package. Dispose of them properly to prevent injury.

• Plastic bags present a choking hazard to children. Tear up the plastic bags before disposing of them to prevent accidents.

When installing or relocating the unit, make sure that no substance other than the specified refrigerant(R410A) enters the refrigerant circuit.

• Any presence of foreign substance such as air can cause abnormal pressure rise or explosion.

- 4 -

Before the Test Run

Caution

Turn on the unit at least 12 hours before the test run.

• Keep the unit on throughout the season. Turning the unit off during the season may cause problems.

Do not turn off the power immediately after stopping the unit.

• Allow for at least five minutes before turning off the unit; otherwise, the unit may leak water or experience other problems.

Do not operate the unit without panels and safety guards in their proper places.

• They are there to keep the users from injury from accidentally touching rotating, high-temperature, or high-voltage parts.

Do not touch the refrigerant pipes with bare hands during and immediately after operation.

• Depending on the state of the refrigerant in the system, certain parts of the unit such as the pipes and compressor may become very cold or hot and may subject the person to frost bites or burning.

Do not operate switches with wet hands to avoid electric shock.

Do not operate the unit without air filters.

• Dust particles in the air may clog the system and cause malfunction.

- 5 -

- 6 -

¡¡

Read Before Servicing

[1] Items to Be Checked

1. Verify the type of refrigerant used by the unit to be serviced.

Refrigerant Type : R410A

2. Check the symptom exhibited by the unit to be serviced.

Look in this service handbook for symptoms relating to the refrigerant cycle.

3. Be sure to carefully read the Safety Precautions at the beginning of this document.

4. Prepare necessary tools: Prepare tools exclusive for use with each refrigerant type.

Refer to P7 for more information.

5. Verification of the connecting pipes: Verify the type of refrigerant used for the unit to be moved or replaced.

• Use pipes made of phosphorus deoxidized copper. Keep the inner and outer surfaces of the pipes clean and

free of contaminants such as sulfur, oxides, dust/dirt, shaving particles, oils, and moisture.

• Contaminants inside the refrigerant piping will cause the refrigerant oil to deteriorate.

6. If there is a gas leak or if the remaining refrigerant is exposed to an open flame, a noxious gas hydrofluoric acid may form. Keep workplace well ventilated.

CAUTION

1. Install new pipes immediately after removing old ones to keep moisture out of the refrigerant circuit.

2. Chloride in some types of refrigerants such as R22 will cause the refrigerating machine oil to deteriorate.

- 7 -

[2] Necessary Tools and Materials

Prepare the following tools and materials necessary for installing and servicing the unit.

[Necessary tools for use with R410A (Adaptability of tools that are for use with R22 and R407C)]

1. To be used exclusively with R410A (not to be used if used with R22 or R407C)

Tools/Materials NotesUse

Gauge Manifold Charging Hose Refrigerant Recovery Equipment Refrigerant Cylinder

Refrigerant Cylinder Charging Port Flare Nut

Evacuating, refrigerant charging Evacuating, refrigerant charging Refrigerant recovery Refrigerant charging

Refrigerant charging Connecting the unit to piping

5.09MPa on the High-pressure side. Hose diameter larger than the conventional ones.

Write down the refrigerant type. Pink in color at the top of the cylinder. Hose diameter larger than the conventional ones. Use Type-2 Flare nuts. (That are in compliance with JIS B 8607).

2. Tools and materials that may be used with R410A with some restrictions

Tools/Materials NotesUse

Gas leak detector Vacuum Pump

Flare Tool

Refrigerant Recovery Equipment

Detection of gas leaks Vacuum drying

Flare machining of piping

Recovery of refrigerant

The ones for HFC type refrigerant may be used. May be used if a reverse flow check adaptor is attached. Changes have been made in the flare machining dimension. Refer to the next page. May be used if designed for use with R410A.

3. Tools and materials that are used with R22 or R407C that can also be used with R410A

Tools/Materials NotesUse

Vacuum Pump with a Check valve Bender Torque Wrench

Pipe Cutter Welder and Nitrogen Cylinder Refrigerant Charging Meter Vacuum Gauze

Vacuum drying Bending pipes Tightening flare nuts

Cutting pipes Welding pipes Refrigerant charging Checking vacuum degree

Only ø 12.70 (1/2”) and ø 15.88 (5/8”) have a larger flare machining dimension.

4. Tools and materials that must not be used with R410A

Tools/Materials NotesUse

Charging Cylinder Refrigerant Charging Must not be used with R410A-type units.

Tools for R410A must be handled with special care; keep moisture and dust from entering the cycle.

Type-O pipes Soft copper pipes (annealed copper pipes)

They can be bent easily with hands.

Type-1/2H pipes Hard copper pipes (straight pipes)

Stronger than type-O pipes of the same radial thickness.

- 8 -

[3] Piping Materials

NOOK

New Piping Existing Piping

Do not use the existing piping!

• The distinction between type-O and type-1/2H pipes is made based on the strength of the pipes themselves.

•Type-O pipes are soft and can easily be bent with hands.

•Type-1/2H pipes are considerably stronger than type-O pipes of the same radial thickness.

Use pipes made of phosphorus deoxidized copper. Since the operation pressure of the units that use R401A is higher than that of the units for use with R22, use pipes with at least the radial thickness specified in the chart below. (Pipes with a radial thickness of 0.7 mm or less may not be used.)

Maximum Operation Pressure Applicable Refrigerants

3.45 MPa

4.30 MPa

R22, R407C etc. R410A

✻ Use pipes that meet the local standards.

Type-O pipes

Type-1/2H or

H pipes

Size(mm) Size(inch) Radial Thickness(mm) Type

ø 6.35 ø 9.52

ø 12.7 ø 15.88 ø 19.05

ø 22.2

ø 25.4 ø 28.58 ø 31.75

1/4” 3/8” 1/2” 5/8” 3/4” 7/8”

1” 1 1/8” 1 1/4”

0.8t

1.0t

1.1t

✻ Although it was possible to use type-O for pipes with a size of up to ø19.05 (3/4”) with conventional refriger-

ants, use type-1/2H pipes for units that use R410A. (Type-O pipes may be used if the pipe size is

ø19.05 and

the radial thickness is 1.2t.)

✻ The table shows the standards in Japan. Using this table as a reference, choose pipes that meet the local

standards.

- 9 -

“Radial thickness” and “Refrigerant Types” are indicated on the insulation material on the piping materials for the new refrigerant.

Indication of the radial thickness (mm) Indication of the refrigerant type

Radial thickness Symbols

0.8

1.0

08 10

Refrigerant type Symbol Type1 R22, R407C Type2 R410A

1 2

The type of piping materials can also be found on the package. <Example of a label found on the package>

~08-2~

Appears every 1 m

2 : common to type 1 and type 2 Refrigerant Type : R22,R407C,R410A Bore diameter and radial thickness of the copper piping : 9.52✕0.8, 15.88✕1.0

The flare machining dimensions for units that use R410A is larger than those for units that use R22 in order to increase air tightness.

If a clutch type flare tool is used to machine flares on units that use R410A, make the protruding part of the pipe between 1.0 and 1.5mm. Copper pipe gauge for adjusting the length of pipe protrusion is useful.

Flare Machining Dimension(mm)

External dimension of pipes

Size

Dimension A

R410A

ø 6.35 ø 9.52

ø 12.7 ø 15.88 ø 19.05

1/4” 3/8” 1/2” 5/8” 3/4”

9.1

13.2

16.6

19.7

24.0

R22

9.0

13.0

16.2

19.4

23.3

Dimension A

Type-2 flare nuts instead of type-1 s are used to increase the strength. The size of some of the flare nuts have also been changed.

Flare nut dimension(mm)

External dimension of pipes

Size

Dimension B

R410A(Type2)

ø 6.35

ø 9.52

ø 12.7 ø 15.88 ø 19.05

1/4” 3/8” 1/2” 5/8” 3/4”

17.0

22.0

26.0

29.0

36.0

R22(Type1)

17.0

22.0

24.0

27.0

36.0

Dimension B

✻ The table shows the standards in Japan. Using this table as a reference, choose pipes that meet the local

standards.

Store the pipes to be used indoors. (Warehouse at site or owner’s warehouse) Storing them outdoors may cause dirt, waste, or water to infiltrate.

Both ends of the pipes should be sealed until immediately before brazing. Wrap elbows and T’s in plastic bags for storage.

✻

The new refrigerator oil is 10 times more hygroscopic than the conventional refrigerator oil (such as Suniso). Water infiltration in the refrigerant circuit may deteriorate the oil or cause a compressor failure. Piping materials must be stored with more care than with the conventional refrigerant pipes.

OK

NO

- 10 -

[4] Storage of Piping Material

1. Storage location

2. Pipe sealing before storage

Use ester oil, ether oil or alkylbenzene (small amount) as the refrigerator oil to coat flares and flange connections.

Reason :

1. The refrigerator oil used for the equipment is highly hygroscopic and may introduce water inside.

Notes :

• Introducing a great quantity of mineral oil into the refrigerant circuit may also cause a compressor failure.

• Do not use oils other than ester oil, ether oil or alkylbenzene.

- 11 -

[5] Piping Machining

No changes from the conventional method, but special care is required so that foreign matter (ie. oxide scale, water, dirt, etc.) does not enter the refrigerant circuit.

Example : Inner state of brazed section

When non-oxide brazing was not used When non-oxide brazing was used

Items to be strictly observed :

1. Do not conduct refrigerant piping work outdoors on a rainy day.

2. Apply non-oxide brazing.

3. Use a brazing material (BCuP-3) which requires no flux when brazing between copper pipes or between a copper pipe and copper coupling.

4. If installed refrigerant pipes are not immediately connected to the equipment, then braze and seal both ends of them.

Reasons :

1. The new refrigerant oil is 10 times more hygroscopic than the conventional oil. The probability of a machine failure if water infiltrates is higher than with conventional refrigerant oil.

2. A flux generally contains chlorine. A residual flux in the refrigerant circuit may generate sludge.

Note :

• Commercially available antioxidants may have adverse effects on the equipment due to its residue, etc. When applying non-oxide brazing, use nitrogen.

- 12 -

[6] Brazing

No changes from the conventional method. Note that a refrigerant leakage detector for R22 or R407C cannot detect R410A leakage.

Halide torch R22 or R407C leakage detector

Items to be strictly observed :

1. Pressurize the equipment with nitrogen up to the design pressure and then judge the equipment’s airtightness, taking temperature variations into account.

2. When investigating leakage locations using a refrigerant, be sure to use R410A.

3. Ensure that R410A is in a liquid state when charging.

Reasons :

1. Use of oxygen as the pressurized gas may cause an explosion.

2. Charging with R410A gas will lead the composition of the remaining refrigerant in the cylinder to change and this refrigerant can then not be used.

Note :

•A leakage detector for R410A is sold commercially and it should be purchased.

1. Vacuum pump with check valve A vacuum pump with a check valve is required to prevent the vacuum pump oil from flowing back into the refrigerant circuit when the vacuum pump power is turned off (power failure). It is also possible to attach a check valve to the actual vacuum pump afterwards.

2. Standard degree of vacuum for the vacuum pump Use a pump which reaches 65Pa or below after 5 minutes of operation. In addition, be sure to use a vacuum pump that has been properly maintained and oiled using the specified oil. If the vacuum pump is not properly maintained, the degree of vacuum may be too low.

3. Required accuracy of the vacuum gauge Use a vacuum gauge that can measure up to 650Pa. Do not use a general gauge manifold since it cannot measure a vacuum of 650Pa.

4. Evacuating time

•Evacuate the equipment for 1 hour after 650Pa has been reached.

• After envacuating, leave the equipment for 1 hour and make sure the that vacuum is not lost.

5. Operating procedure when the vacuum pump is stopped In order to prevent a backflow of the vacuum pump oil, open the relief valve on the vacuum pump side or loosen the charge hose to drawn in air before stopping operation. The same operating procedure should be used when using a vacuum pump with a check valve.

NO

- 13 -

[7] Airtightness Test

[8] Vacuuming

Recommended vacuum gauge : ROBINAIR 14010 Thermistor Vacuum Gauge

1. Vacuum pump with reverse-flow check valve (Photo 1)

To prevent vacuum pump oil from flowing back into the refrigerant circuit upon turning off the vacuum pump’s power

source, use a vacuum pump equipped with a reverse flow check valve.

A check valve may also be added to the vacuum pump currently in use.

2. Standard of vacuum degree (Photos 1 and 2)

Use a vacuum pump that shows a vacuum degree of 65Pa or less after 5 minutes of operation. Use a pump well-

maintained with an appropriate lubricant.

3. Required precision of vacuum gauge

Use a vacuum gauge that registers a vacuum degree of 650Pa and measures at intervals of 130Pa. (A recommended

vacuum gauge is shown in Photo 2.)

Do not use a vacuum gauge that does not register a vacuum degree of 650Pa.

4. Evacuation time

• After the vacuum gauge has registered the vacuum degree of 650Pa, evacuate for 1 hour. (A thorough vacuum drying

removes moisture in the pipes.)

•Verify that the vacuum degree has not risen by more than 130Pa 1 hour after evacuation. A rise by less than 130Pa is

acceptable.

• If it has exceeded by more than 130Pa, conduct vacuuming following the instructions in the “6. Special vacuum drying”

section.

5. Procedures for stopping vacuum pump

To prevent the reverse flow of vacuum pump oil, open the relief valve on the vacuum pump side, or draw in air by

loosening the charge hose, and then stop the operation.

The same procedures should be followed when stopping a vacuum pump with a reverse-flow check valve.

6. Special vacuum drying

• When 650Pa or lower degree of vacuum cannot be attained after 3 hours of evacuation, it is likely that water has

penetrated the system or that there is a leak. When water infiltration is suspected, vacuum with nitrogen gas.

After breaking the vacuum, pressurize the system with nitrogen gas to a degree of 0.05MPa, and conduct an evacuation

again. Repeat it until 650Pa or lower degree of vacuum is attained or the vacuum pressure rise will be lost.

• Only use nitrogen gas for vacuum breaking. (Use of oxygen may cause an explosion.)

Photo 1 15010H Photo 2 14010

- 14 -

[9] Vacuum Drying

R410A must be in a liquid state when charging.

For a cylinder with a syphon attached For a cylinder without a syphon attached

Cylinder color identification R407C-Gray Charged with liquid refrigerant

R410A-Pink

Reasons :

1.

Note :

• In the case of a cylinder with a syphon, liquid R410A is charged without turning the cylinder up side down. Check the type of cylinder before charging.

Cylin-

der

Cylin-

der

Valve

Val ve

Liquid

R410A is a pseudo-azeotropic refrigerant (boiling point R32 = -52˚C, R125 = -49˚C) and can roughly be handled in the same way as R22; however, be sure to fill the refrigerant from the liquid side, for doing so from the gas side will somewhat change the composition of the refrigerant in the cylinder.

When refrigerant leaks, additional refrigerant may be charged. (Add the refrigerant from the liquid side.) ✻Refer to 9-[5].

- 15 -

[10] Changing Refrigerant

[11] Remedies to be taken in case of a refrigerant leak

Composition (wt%) Type of refrigerant

Chloride Safety Class Molecular Weight Boiling Point Steam Pressure (25

˚C,MPa)(gauge)

Saturated Steam Density (25

˚C,kg/m3) Flammability Ozone Depletion Coefficient (ODP)✻1 Global Warming Coefficient (GWP)✻2 Refrigerant charging method Addition of refrigerant in case of a leak

R410A

R32/R125

(50/50)

Simulated azeotropic

refrigerant

Not contained

A1/A1

72.6

-51.4

1.557

64.0

Non-flammable

0

1730

Liquid charging

Possible

R407C

R32/R125/R134a

(23/25/52)

Non-azeotropic

refrigerant

Not contained

A1/A1

86.2

-43.6

0.9177

42.5

Non-flammable

0

1530

Liquid charging

Possible

New Refrigerant

(HFC system)

Conventional Refrigerant

(HCFC system)

R22 R22

(100)

Single refrigerant

Contained

A1

86.5

-40.8

0.94

44.4

Non-flammable

0.055 1700

Gas charging

Possible

✻1: When CFC11 is used as a reference ✻2: When CO

2 is used as a reference

- 16 -

[12] Characteristics of the Conventional and the New Refrigerants

1. Chemical property

As with R22, the new refrigerant (R410A) is low in toxicity and a chemically stable non-flammable refrigerant. However, because the specific gravity of steam is greater than that of air, leaked refrigerant in a closed room will accumulate at the bottom of the room and may cause hypoxia. Also, leaked refrigerant exposed directly to an open flame will generate noxious gasses. Use the unit in a well-ventilated room.

R410A

MPa

0.30

0.70

1.34

2.31

3.73

4.17

-20 0 20 40 60 65

R407C

MPa

0.18

0.47

0.94

1.44

2.44

2.75

R22

MPa

0.14

0.40

0.81

1.44

2.33

2.60

Pressure (gauge)

Temperature (

˚C)

3. Pressure Characteristics

The pressure in the units that use R410A is 1.6 times as great as that in the units that use R22.

2. Refrigerant Composition

Because R410A is a simulated azeotropic refrigerant, it can be handled in almost the same manner as a single refrigerant such as R22. However, if the refrigerant is removed in the vapor phase, the composition of the refriger ant in the cylinder will somewhat change. Remove the refrigerant in the liquid phase. Additional refrigerant may be added in case of a refrigerant leak.

- 17 -

Refrigerant Refrigerating machine oil

R22 R407C R410A

Mineral oil

Ester oil Ester oil

[13] Notes on Refrigerating Machine Oil

1. Refrigerating Machine Oil in the HFC Refrigerant System

HFC type refrigerants use a refrigerating machine oil different from that used in the R22 refrigerant system. Please note that the ester oil sealed in the unit is not the same as commercially available ester oil.

Cause Symptom

Clogged expansion valve and capillary Poor cooling performance Compressor overheat Poor motor insulation Motor burning Coppering of the orbiting part Locking Burning in the orbiting part

Expansion valve/capillary Poor cooling performance Drier clogging Compressor overheat

Burning in the orbiting part Expansion valve and capillary clogging Poor cooling performance Compressor overheat Burning in the orbiting part

Effects on the refrigeration cycle

Sludge formation Generation of acid Oxidization Oil degradation

Water infiltration

Air infiltration

Infiltration

of

contaminants

Dust, dirt

Mineral oil etc.

Expansion valve and capillary freeze

Hydrolysis

Oxidization

Adhesion to expansion valve and capillary

Infiltration of contaminants into the compressor

Sludge formation and adhesion

Oil degradation

2. Effects of the ✻Contaminants in the System

Refrigerating machine oil used in the HFC system must be handled more carefully than conventional mineral oils. The table below shows the effects of air, moisture, and contaminants in the refrigerating machine oil on the refrigeration cycle.

✻ “ Contaminants ” is defined as moisture, air, process oil, dust/dirt, the wrong types of refrigerant and refrigerat-

ing machine oil.

OK NO

➀ Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring

regulations, and guidance of each electric power company.

➁ Wiring for control (hereinafter referred to as transmission line) shall be (5cm or more) apart from power source wiring so

that it is not influenced by electric noise from power source wiring. (Do not insert transmission line and power source wire in the same conduit.)

➂ Be sure to provide designated grounding work to heat source unit. ➃ Give some allowance to wiring for electrical part box of indoor and heat source unit, because the box is sometimes rem-

oved at the time of service work.

➄ Never connect 380~415V(220~240V) power source to terminal block of transmission line.If connected,electrical parts

will be burnt out

➅ Use 2-core shield cable for transmission line. If transmission lines of different systems are wired with the same multiple-

core cable, the resultant poor transmitting and receiving will cause erroneous operations.

Heat

source

unit

Heat

source

unit

Indoor unit

Remote

BC controller

controller

2-core cable

Remote

controller

Indoor unit

Multiple-

core cable

BC controller

Type of cable

Cable diameter

Remarks

Sheathed 2-core cable (unshielded) CVV

0.3

~ 1.25mm

2

(0.75 ~ 1.25mm2) ✻1

✻ The BC controller is connected to WR2 and R2 systems.

More than 1.25mm

2

Shielding wire (2-core) CVVS,CPEVS or MVVS

When 10m is exceeded, use cables with the same specification as transmission cables.

0.3 ~ 1.25mm

2

(0.75 ~ 1.25mm2) ✻1

Max length : 200m

Transmission cables M-NET Remote controller cables MA Remote controller cables

CVVS,MVVS : PVC insulated PVC jacketed shielded control cable CPEVS : PE insulated PVC jacketed shielded communication cable CVV : PV insulated PVC sheathed control cable

—

✻

1 Connected with simple remote controller.

- 18 -

™™

Restrictions

[1] Electrical Work & M-NET control

1. Attention

2. Types of control cable

00

101

Main

00

201

202

000

247

Address (1) setting varies depending on the system configuration. See “[3] Examples of system connection” section for details.

Unit or controller

Address

Setting method

setting range

Indoor unit Main/sub units

Lossnay

M-NET remote controller

Main remote controller

Sub remote controller

MA remote controller

Outdoor (Heat source) unit

System controller

Group remote controller

System remote controller

ON/OFF remote controller

Schedule timer (for M-NET)

Centralized controller (Note 5)

LM adapter

0, 01~50

(Note 1)

101~150

151~200

(Note 2)

0, 51~100

(Note 1, 3, 4)

52~100

(Note 3, 4)

201~250

0, 201~250

201~250

Notes:

Factory

setting

Type and method of switch setting

Switch setting vary depending on the system configuration. Make sure to read “[3] Examples of system connection” before conducting electrical work. Turn off the power before setting the switch. Operating the switch while the unit is being powered will not change the setting, and the unit will not properly function.

1. Address setting is not required for a single refrigerant system (with a few exception).

2. When setting M-NET remote controller address to “200,” make it “00.”

3. When setting the heat source unit and outdoor auxiliary unit address to “100,” make it “50.”

4. When an address in a system overlapped with the heat source unit or BC controller (Main) address of other refrigerant system, choose an another address within the set range that is not in use (with a few exceptions).

5. When controlling the K-control units; (1) A K-transmission converter (Model name: PAC-SC25KA) is required. To set the address for the K-transmission converter,

set it to the lowest address of the K-control unit to be controlled + 200.

(2) Set the address of the system controller (G-50A) to “0.” The K-control unit can only be controlled by the system controller

with the address “0.”

(3) To control both K-control unit and M-NET model unit, make the address of the K-control unit larger than that of the indoor

unit of M-NET model. Group-register on the system controller so that the group No. and the lowest address of the K-controlled indoor units belonging to the group will be identical.

6. BC controller is found only in the R2 and WR2 systems.

Use the address that equals the sum of the smallest indoor unit address in the same refrigerant system and 50.

Use the address that equals the sum of the smallest address of the indoor unit out of all the indoor units that are connected to the BC controller and 50. When a sub BC controller is connected, the automatic start up function will not be available.

Auxiliary units

BC controller (Sub)

Use the address that equals the sum of the address of the heat source unit in the same refrigerant system and 1.

BC controller (Main)

Choose any number within the range of addresses shown left. However when using with the upper SC setting, or wishing to control the k-control units, set to “0.”

Assign the smallest address to the indoor unit to become the main unit within the same group, and then use sequential numbers to assign an address to all the indoor units in the group. (Note 5) If applicable, set the sub BC controllers in an R2 system in the following order:

(1)

Indoor unit to be connected to the main BC controller

(2)

Indoor unit to be connected to No.1 sub BC controller

(3)

Indoor unit to be connected to No.2 sub BC controller

Set the address so that (1) < (2) < (3)

Assign any unused address after setting all indoor units.

Set to the lowest address of the indoor main unit within the same group + 150.

Set to the lowest No. of the group to be controlled + “200.”

Set to the lowest No. of the group desired to be controlled + “200.”

Choose any number within the range of addresses shown left.

Choose any number within the range of ad-dresses shown left.

Choose any number within the range of addresses shown left.

Set to the lowest address of the indoor main unit within the same group + 100.

No address setting required. (When operating with 2 remote controllers, the main/sub selector switch must be set.

- 19 -

[2] Types of Switch Setting and Address Setting

1. Switch setting

2. Address setting

Setting the power supply selecting connector for outdoor unit (Heat source unit) (Factory setting: CN41 is connected.)

(2)

Settings for the centralized control switch on the outdoor (heat source) unit (Factory setting: SW2-1 set to “OFF”)

(3)

Various start-stop controls (Indoor unit settings) Each indoor unit (or group of indoor units) can be controlled individually by setting SW 1-9 and 1-10.

(6)

Miscellaneous settings Cooling-only setting for the indoor unit: Cooling only model (Factory setting: SW3-1 “OFF.”) When using indoor unit as a cooling-only unit, set SW3-1 to ON.

(7)

_

n/a

applicable

applicable//n/a

With connection to the indoor-outdoor transmission line

With connection to the transmission line for centralized control

_

Indoor unit port switch setting (R2/WR2 series (Factory Setting: “0”)) Make the settings for the port switch that corresponds to the connected BC (Main/Sub) controller. When more than two ports are used, make the setting on the port with a smaller port number. The total capacity and the number of connectable indoor units per port is 90 and below, and 3 respectively.

(4)

Selecting the position of temperature detection for the indoor unit (Factory setting: SW1-1 set to “OFF”.)

1To use the built-in sensor on the remote controller, set the SW1-1 to ON.

✻Some models of remote controllers are not equipped with a built-in temperature sensor.

Use the built-in temperature sensor on the indoor unit instead.

✻When using the built-in sensor on the remote controller, install the remote controller where room temperature can

be detected. (Note) Factory setting for SW1-1 on the indoor unit of the All-Fresh Models (PEFY-P, M-E-F, PFFY-P, RM-E-F) is ON.

2When an optional temperature sensor is used, set SW1-1 to OFF, and set SW3-8 to ON.

✻When using an optional temperature sensor, install it where room temperature can be detected.

(5)

Operation of the indoor unit when the operation is resumed after the unit was stoppedFunction

Setting (SW1) (Note 4)

Power ON/OFF by the plug (Note 1, 2, 3)

Indoor unit will go into operation regardless of its operation status before power off (power failure). (In approx. 5 minutes) Indoor unit will go into operation if it was in operation when the power was turned off (or cut off due to power failure). (In approx. 5 minutes) Indoor unit will remain stopped regardless of its operation status before power off (power failure).

9

OFF

ON

OFF

10

ON

OFF

System configuration

Single-refrigerant system

Connection with the system controller

Power supply unit for transmission lines

Grouping operation of different

Unnecessary

Unnecessary (Note 2)

()

applicable

The setting of the power supply selecting connector

Use CN41 as is. (Factory setting)

Multiplerefrigerant system

System configuration

Switch setting for centralized control (SW2-1)

Connection with the system controller : n/a

Connection with the system controller : applicable (Note 1)

Leave it to OFF.(Factory setting)

ON

(Note 1) The total number of connectible units in the refrigerant system will be limited. Refer to DATA BOOK. (Note 2) The need for a power supply unit for transmission lines depends on the system configuration. Refer to DATA BOOK. (Note 3) When connecting a system controller to the transmission line for centralized control or performing a group operation of units in

different refrigerant systems, the replacement of male power supply switch connector (CN41) must be performed only on one of the heat source units in the system.

(If a model between 34 and 50 HP is included in the system, replace the connector on that unit.)

(Note 1) Do not cut off power to the outdoor (Heat source) unit.

Cutting off the power supply to the outdoor (Heat source) unit will cut off the power supply to the crankcase heater and may

cause the compressor to malfunction when the unit is put back into operation. (Note 2) Not applicable to units with a built-in drain pump or humidifier (Note 3) Models with a built-in drain pump cannot be turned on/off by the plug individually. All the units in the same refrigerant circuits

will be turned on or off by the plug. (Note 4) Requires that the dipswitch settings for all the units in the group be made.

(Note 1) When only the LM adapter is connected, leave SW2-1 to OFF (as it is).

Disconnect the male connector from the female power supply switch connector (CN41) and connect it to the female power supply switch connector (CN40) on only one of the outdoor units. (Note 3) Connect the S (shielded) terminal on the terminal block (TB7) on the outdoor (Heat source) unit whose CN41 was replaced with CN40 to the earth terminal ( ) on the electric box.

Automatic restoration after power failure

Power supplied from outdoor (Heat source) unit

- 20 -

- 21 -

Various types of control using input-output signal connector on the heat source unit (Connection options)(8)

NO OK

If the step listed as the wrong example above is taken, thermo may go off. The percentage of the demand listed in the table above is an approximate value based on the compressor volume and does not necessarily correspond with the capacity.

(Wrong)

(Correct)

100%

→

0%

75%

→

50%

Demand control

steps

■CN51

Remote controller board

Controller board on Heat source unit

Relay circuit

Adapter

CN51

X Y

X

Y

Maximum allowable wiring length = 10 m

L1 : Error indicator lamp/freeze prevention output L2 : Compressor operation display lamp X,Y : Relay (For 12V DC coil rating 0.9 W or below)

L1

L2

Field-installed

■CN3D

Remote controller board

Controller board on Heat source unit

Relay circuit

Adapter

CN3D

X

Y

X

Y

1 2

3

5 4

3

Maximum allowable wiring length = 10 m

SW1 : Night mode command or step command SW2 : Compressor ON/OFF command X,Y

:

Relay (Contact Minimum applied load 12V DC 1 mA)

X :

Relay (Contact rating 219~240V AC 1 A)

52P :

Contactor for pump

SW1

SW2

Field-installed

■TB8

Heat source unit

TB8

3

4

Shortcircuit jumper wire

63PW

With connection to pump interlock circuit

Remove the jumper wire when pump interlock circuit signal connection is made to 3 or 4 of TB8.

63PW:Pressure switch (Contact: Minimum applied load 5 mA)

■TB8

Heat source unit

TB8

1

2

Terminals

X

52P

Lamp power supply

SW4-7:OFF (Compressor ON/OFF, Night mode)

Open

Short

Compressor ON/OFF

CN3D 1-3P

OFF

ON

SW4-7:ON (Step demand)

Open

Short

Night mode

CN3D 1-2P

ON

OFF

Open

Short

Open

CN3D 1-3P

0%

75%

Short

50%

100%

(No demand)

(Note 1) The night mode function is enabled when Dip SW 4-7 is set to OFF.

When Dip SW4-7 are set to ON, step demand control is possible, using different configurations of night mode input and Compressor ON/OFF input settings.

(Note 2) Error status output function on the heat source unit is enabled when Dip SW3-3 is set to OFF.

When Dip SW3-3 is set to ON, signal is output when heat source unit is stopped and water temperature (TH6) goes below 5˚C.

(Note 3) Operation-ON signal is output while the compressor is in operation if Dip SW2-7 is set to OFF.

If Dip SW2-7 is set to OFF, signal is output while receiving cooling or heating operation signal from the remote controller. (Signal output is continued even if the compressor comes to a stop due to Thermo OFF.)

FunctionUsage

Signal

type

Terminal

Compressor ON/OFF (level)

Operation status of the compressor

Error status or freeze prevention output (Note 2)

Night mode or step demand (level) (Note 1)

CN3D

TB8

CN51

Input

Output

Prohibiting cooling/heating operation (thermo OFF) by an external input to the heat source unit.

✻Can be used as a demand control function for each refrigerant system.

How to extract signals from the heat source unit.

✻Can be used as an operation status display device. ✻Can be used for an interlock operation with external devices.

Performs a low-noise-level operation of the outdoor unit by an external input to the heat source unit. (The unit can perform a night mode operation under the following conditions: Outdoor air temperature below 30˚C during cooling operation/Outdoor air temperature above 3˚C during heating operation.

Pump interlock signal input (level)

Forces the heat source unit to stop by receiving a contact signal from the pump interlock circuit.

Operation-ON signal (Note 3)

Note the following steps to be taken when using the STEP DEMAND (Example) When witching from 100% to 50%

IC

TB5TB02TB7 TB3 TB

15

12

00

IC

TB5 TB

15

12

00

A1 B2

MA

A1 B2

MARC

TB5

00

IC

TB5

12

TB

15

IC

TB5 TB

15

12

0000

IC

TB5 TB

15

12

00

A1 B2

MA

A1 B2

MA

A1 B2

MA

m1

L11

m2

L3 L4

L12 L13

m3

m5

m4

NO

L2L1

A1 B2

a. Indoor/outdoor transmission line

Farthest length (1.25mm2 or more) L1 + L2 + L3 + L4 200m L1 + L2 + L11 + L12 + L13 200m

b. Centralized control transmission line

No connection is required.

c. MA remote controller wiring

To tal length (0.3 ~ 1.25mm2) m1 200m m2 + m3 200m m4 + m5 200m

Control wiring example

Group

Prohibited items Allowable length

1. M-NET and MA remote controllers can not be connected together to the indoor unit within the same group.

2. MA remote controller of 3 units or more can not be connected to the indoor unit within the same group.

3. When the total number of indoor units exceeds 26 units Including that above Type 200, a transmission booster is required. When the transmission booster is used, BC and BS

cannot be connected to TB3 (indoor unit side) on the transmission booster.

4. In the case when start/stop input (CN32, CN51, CN41) is used by indoor group operation, the “Automatic address set-up” can not be employed. Please refer to 1. (2) “ Manual address set-up.”

5. For the connection of LOSSNAY with more than 2 units in a single refrigerant system, refer to the following “Connection of 2 LOSSNAY units in refrigerant system.”

Interlocking with ventilation

– Example to use shielded wire –

Group

LC

≤

✻1BC and BS are found only in the R2 and WR2 systems.

When connected to the BS, indoor-outdoor automatic address start up function will not be available.

00

OC

BC

✻

1

✻

1

00

TB02

BS

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

- 22 -

[3] Examples of system connection

1. System using MA remote controller

(1) In the case of single refrigerant system (Automatic address set-up)

Wiring method • Address setting method

a. Indoor/outdoor transmission line

❉ When the transmission line is long or noise sources are located near the unit, recommend to use shielded wire.

Connection of shielded wire:

For the earth of shielded wire, apply jumper wiring connection between the earth screw of OC and the S-terminal of

IC terminal block (TB5).

b. Centralized control transmission line

Connection is not required.

c. MA remote controller wiring

Connect the 1, 2 terminals of MA remote controller wiring terminal block (TB15) on IC to the terminal block of MA

remote controller (MA). (with non-polarity two wires)

❉ MA remote controller can be connected to A-type indoor unit or later.

For 2-remote controller operation:

To employ 2-remote controller operation, connect 1, 2 terminals of the terminal block (TB15) on IC to the terminal

block of two MA remote controllers.

❉ Set the main/sub selector switch of one MA remote controller to the sub remote controller. (For the setting method,

see the installation manual of MA remote controller.)

For indoor group operation:

For the group operation of IC, connect 1, 2 terminals of the terminal block (TB15) on all ICs within the same group,

and connect 1, 2 terminals of the terminal block (TB15) on another IC to the terminals of MA remote controller.

(with non-polarity two wires)

❉ To operate the indoor units with different function in the same group, refer to 1. (2).

d. LOSSNAY connection

❉ Linked and registered automatically with all indoor units within a refrigerant system.

❉ Please refer to the 1. (2) “Manual address set-up,” when interlocking partial indoor units with Lossnay, using

Lossnay alone without interlocking, interlocking indoor units and Lossnay for over 16 units within a refrigerant

system, or connecting LOSSNAY for over 2 units in a refrigerant system.

e. Switch setting

Address setting is not required.

Order

Unit or controller

Address

Setting method Caution

Factory

setting range

setting

Main unit IC

Not required

–

00

1 Indoor unit

Sub unit IC

2 LOSSNAY LC Not required –

3

MA remote

Main uni

BC controller

tMANot required –

Main

controller

Sub unit MA Sub unit

4

Outdoor (Heat source) unit OC

–

5

Auxiliary units

BC

• Refer to 1. (2)

• Branch number setting is required by R2 and WR2 systems.

to operate indoor units with different function in the same group.

Set with main/sub selector switch.

00

Daisy-chain the M1 and M2 terminals of the indoor-outdoor transmission terminal block (TB3) on the outdoor (heat source) unit (OC), M1 and M2 terminals of the indoor-outdoor transmission line terminal block (TB02) on the BC controller (BC), and M1 and M2 terminals of the indoor-outdoor transmission line terminal block (TB5) on each indoor unit. (with non-polarity two wires)

Apply jumper wiring to connect M1, M2 terminals of the terminal block (TB5) on IC to the indoor/outdoor transmission terminal block (TB5) on LOSSNAY (LC). (with non-polarity two wires)

- 23 -

L2L1

OC

TB3

TB7 TB02

TB02

IC

TB5 TB

15

12

01

IC

TB5 TB

15

12

02

A1 B2

MA

A1 B2

MA

TB5

05

IC

TB5

12

TB

15

IC

TB5 TB

15

12

0403

TB5

06

A1 B2

MA

L11

L3 L4

L12 L13

a. Indoor/outdoor transmission line

The same as 1. (1)

b. Centralized control transmission line

No connection is required.

c. MA remote controller wiring

The same as 1. (1)

Control wiring example

Group

Prohibited items Allowable length

1. M-NET and MA remote controllers can not be connected together to the indoor unit within the same group.

2. MA remote controller of 3 units or more can not be connected to the indoor unit within the same group.

3. When the total number of indoor units exceeds 26 units including that above Type 200, a transmission booster is required. When the transmission booster is used, BC and BS

cannot be connected to TB3 (indoor unit side) on the transmission booster.

Interlocking with ventilation

– Example to use shielded wire –

Group

LC

✻

1.

BC and BS are found only in the R2 and WR2 systems.

51

52

53

BC✻1

BS

✻1

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

- 24 -

1. System using MA remote controller

(2) In the case of single refrigerant system connecting 2 or more LOSSNAY units (Manual address set-up)

- 25 -

1 Indoor unit

2 LOSSNAY

3

MA remote controlle

4 Outdoor (Heat source) unit

r

Main unit

Sub unit

Main unit

BC Controller (sub)

BC Controller (main)

Sub unit

IC

LC

MA

OC

MA

01 ~ 50

Not required

52 ~ 100

51 ~ 100

Not required

Wiring method • Address setting method

a. Indoor/outdoor transmission line

Connection of shielded wire:

b. Centralized control transmission line

No connection is required.

c. MA remote controller wiring

For 2-remote controller operation:

For indoor group operation:

The same as 1. (1)

d. LOSSNAY connection

❉ The interlocking registration of the indoor unit and Lossnay from the remote controller is required. (For the regis-

tration method, see the installation manual of remote controllers.)

e. Switch setting

Address setting is required as listed below.

Order

Unit or controller

Address

Setting method Caution

Factory

setting range

setting

• Set

•

the lowest address within a same group to the indoor unit desired to be the main unit.

[Main unit +1, +2, +3, .... ]

Set any address after setting al

5

Auxiliary units

BS

BC

Set with main/sub selector switch.

l

indoor units.

–

00

Main

00

•When operating indoor units with different function within a same group, assign the indoor unit with the most plenty of function to the main unit.

• Set the address not to be overlapped with the indoor unit address.

The lowest address of indoor unit within refrigerant system + 50

The address of the indoor unit connected to the sub BC controller must be larger than that of the indoor unit connected to the main BC controller. If applicable, set the sub BC controllers in an R2 system in the following order: (1)

Indoor unit to be connected to the main BC controller

(2)

Indoor unit to be connected to No.1 sub BC controller

(3)

Indoor unit to be connected to No.2 sub BC controller

Set the address so that (1) < (2) < (3)

•

Use the address that equals the sum of the smallest indoor unit address out of all the indoor units that are connected to the sub BC controller and 50.

Outdoor (Heat source) unit address +1

Requires a branch-number setting.

Set to the main unit address within a same group in serial order

Apply jumper wiring to connect M1, M2 terminals of the terminal block (TB5) on the indoor unit (IC) to the terminal block (TB5) on Lossnay (LC). (with non-polarity two wires)

• To set the address to “100,” set it to “50”.

• If the address of main BC controller overlaps with the address of the outdoor (heat source) unit or the sub BC controller, use an unused address within the setting range.

• The use of a sub BC controller requires a main BC controller.

- 26 -

IC

TB5 TB

15

12

01

IC

TB5 TB

15

12

03

A1 B2

MA

A1 B2

MA

TB5

06

IC

TB5

12

TB

15

IC

TB5 TB

15

12 12

0402

IC

TB5 TB15

05

A1 B2

MA

L3 L4

L23 L24

NO

L1 L2

L22L21

L31

m2

m3

a. Indoor/outdoor transmission line

Farthest length (1.25mm

2

or more) L1 + L2 + L3 + L4 200m L21 + L22 + L23 + L24 200m

b. Centralized control transmission line

Farthest length via outdoor (heat source) unit (1.25m

m

2

or more)

L1 + L2 + L3 + L4 + L31 + L21 + L22 + L23 + L24 500m

c. MA remote controller wiring

The same as 1. (1)

Control wiring example

Group

Prohibited items Allowable length

1. M-NET and MA remote controllers can not be connected together to the indoor unit within the same group.

2. MA remote controller of 3 units or more can not be connected to the indoor unit within the same group.

3. Do not connect together the terminal blocks (TB5) of the indoor unit connected to different outdoor (heat source) units.

4. Replacement of the power supply selecting connector (CN41) on the outdoor (heat source) unit should be done only on one

outdoor (heat source) unit.

5. Grounding of S-terminal of the centralized control terminal block (TB7) on outdoor (heat source) unit should be done only on one outdoor (heat source) unit.

6. When the total number of indoor units exceeds 26 units including that above Type 200, a transmission booster is required. When the transmission booster is used, BC and BS cannot be connected to TB3 (indoor unit side) on the transmission booster.

Interlocking with ventilation

– Example to use shielded wire –

Group

LC

≤

NO

✻1.BC and BS are found only in the R2 and WR2 systems.

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

51

52

53

55

54

Connect

OC

Leave CN41 as it is.

CN41→CN40 Replace

TB02

TB7 TB3

BC✻1

BC

✻1

BS

✻1

1. System using MA remote controller

(3) In the case of different refrigerant grouping operation

- 27 -

Wiring method • Address setting method

a. Indoor/outdoor transmission line

❉

Make sure to use shielded wire.

Connecting of shielded wire:

The same as 1. (1)

b. Centralized control transmission line

Apply jumper wiring between M1, M2 terminals of centralized control transmission line terminal blocks (TB7) on each OC. For one OC only, replace the power selecting connector (CN41) with (CN40).

❉ Make sure to use shielded wire.

Connecting of shielded wire:

Apply jumper wiring to connect the shielded earth to S-terminal of the terminal block (TB7) on each OC. Connect Sterminal of the terminal block (TB7) on the one OC with (CN40) replaced to the earth screw ( ) of the electrical parts box.

c. MA remote controller wiring The same as 1. (1)

For 2-remote controller operation: The same as 1. (1)

For indoor unit group operation: The same as 1. (2)

d. LOSSNAY connection The same as 1. (2)

e. Switch setting

Address setting is required as follows.

Daisy-chain the M1 and M2 terminals of the indoor-outdoor transmission terminal block (TB3) on the outdoor (heat source) unit (OC), M1 and M2 terminals of the indoor-outdoor transmission line terminal block (TB02) on the BC controller (BC), and M1 and M2 terminals of the indoor-outdoor transmission line terminal block (TB5) on each indoor unit. (with non-polarity two wires)

1 Indoor unit

2 LOSSNAY

3

MA remote controlle

4 Outdoor (Heat source) unit

r

Main unit

Sub unit

Main uni

t

BC Controller (sub)

BC Controller (main)

Sub unit

IC

LC

MA

OC

MA

01 ~ 50

Not required

52 ~ 100

51 ~ 100

Not required

Order

Unit or controller

Address

Setting method Caution

Factory

setting range

setting

• Set

•

the lowest address within a same group to the indoor unit desired to be the main unit.

[Main unit +1, +2, +3, .... ]

Set any address after setting al

5

Auxiliary units

BS

BC

Set with main/sub selector switch.

l

indoor units.

–

00

Main

00

•When operating indoor units with different function within a same group, assign the indoor unit with the most plenty of function to the main unit.

• Set the address not to be overlapped with the indoor unit address.

The lowest address of indoor unit within refrigerant system + 50

The address of the indoor unit connected to the sub BC controller must be larger than that of the indoor unit connected to the main BC controller. If applicable, set the sub BC controllers in an R2 system in the following order: (1)

Indoor unit to be connected

to the main BC controller

(2)

Indoor unit to be connected

to No.1 sub BC controller

(3)

Indoor unit to be connected

to No.2 sub BC controller

Set the address so that (1) < (2) < (3)

•

Use the address that equals the sum of the smallest indoor unit address out of all the indoor units that are connected to the sub BC controller and 50.

Outdoor (Heat source) unit address +1

Requires a branch-number setting.

Set to the main unit address within a same group in serial order

• To set the address to “100,” set it to “50”.

• If the address of main BC controller overlaps with the address of the outdoor (heat source) unit or the sub BC controller, use an unused address within the setting range.

• The use of a sub BC controller requires a main BC controller.

- 28 -

IC

TB5 TB

15

12

01

IC

TB5 TB

15

12

07

A1 B2

MA

A1 B2

MA

TB5

05

IC

TB5

12

TB

15

IC

TB5 TB

15

12

0403

TB5

06

A1 B2

MA

L3L2L1 L4

L23L22L21 L24

L31

L32

NO

a. Indoor/outdoor transmission line

The same as 1. (3)

b. Centralized control transmission line

Farthest length via outdoor (heat source) unit (1.25m m2 or more) L32 + L31 + L1 + L2 + L3 + L4 500m

L32 + L21 + L22 + L23 + L24 500m L1 +L2 + L3 + L4 + L31 + L21 + L22 + L23 + L24 500m

c. MA remote controller wiring

The same as 1. (1)

Control wiring example

Group

Prohibited items Allowable length

1. M-NET and MA remote controllers can not be connected together to the indoor unit within the same group.

2. MA remote controller of 3 units or more can not be connected to the indoor unit within the same group.

3. Do not connect together the terminal blocks (TB5) of the indoor unit connected to different outdoor (heat source) units.

6. When the total number of indoor units exceeds 26 units Including that above Type 200, a transmission booster is re-

quired. When the transmission booster is used, BC and BS cannot be connected to TB3 (indoor unit side) on the transmission booster.

Interlocking with ventilation

– Example to use shielded wire –

Group

LC

Notes:

1. Leave SW2-1 as “OFF” when connecting LM adapter only.

2. LM adapter requires the power source of 1-phase AC 230V.

Note 2

System controller

≤

4. Replacement of the power supply selecting connector (CN41) on the outdoor (heat source) unit should be done only on

one outdoor (heat source) unit.

5. Grounding work is required for S-terminal of the centralized control transmission block (TB7) on one outdoor (heat source)

unit only.

✻1.BC and BS are found only in the R2 and WR2 systems.

NO

TB02TB7 TB3

Note 1

CN41→CN40 Replace SW2-1 OFF→ON

51

53

54

52

57

Connect

OC

TB7 TB02

TB02

TB3

Leave CN41 as it is. SW2-1 OFF→ON

BC✻1

BC

✻1

BS

✻1

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2M1M2

1. System using MA remote controller

(4) In the case of connecting system controller to centralized control transmission line

- 29 -

Wiring method • Address setting method

a. Indoor/outdoor transmission line

Connection of shielded wire:

The same as 1. (3) The same as 1. (1)

c. MA remote controller wiring

For 2-remote controller operation: For indoor group operation:

The same as 1. (1) The same as 1. (1) The same as 1. (1)

d. LOSSNAY connection

Apply jumper wiring to connect M1, M2 terminals of the terminal block (TB5) on (IC) to the terminal block (TB5) on the indoor/outdoor transmission line terminal block (TB5) on Lossnay (LC). (with non-polarity two wires) ❉ The interlocking registration of the indoor unit and LOSSNAY from the system controller is required. (For the

registration method, see the installation manual of the system remote controllers.) When connecting ON/OFF remote controller and LM adaptor only, the interlocking registration from the remote controller is required.

e. Switch setting

Address setting is required as listed below.

b. Centralized control transmission line

Apply jumper wiring between M1, M2 terminals of centralized control transmission line terminal blocks (TB7) on each OC. On one OC only, replace the power selecting connector (CN41) with (CN40). Set the centralized control switch (SW2-1) on the main board of all outdoor (heat source) units to “ON.” ❉ Make sure to use shielded wire.

Connection of shielded wire:

Apply jumper wiring to connect the shielded earth to S-terminal of the terminal block (TB7) on each OC. Connect S-terminal of the terminal block (TB7) on one OC with (CN40) connected to the earth screw ( ) of the electrical parts box.

1 Indoor unit

2 LOSSNAY

3

MA remote controlle

4 Outdoor (Heat source) unit

r

Main unit

Sub unit

Main uni

t

BC Controller (sub)

BC Controller (main)

Sub unit

IC

LC

MA

OC

MA

01 ~ 50

Not required

52 ~ 100

51 ~ 100

Not required

Order

Unit or controller

Address

Setting method Caution

Factory

setting range

setting

• Set

•

the lowest address within a same group to the indoor unit desired to be the main unit.

[Main unit +1, +2, +3, .... ]

Set any address after setting al

5

Auxiliary units

BS

BC

Set with main/sub selector switch.

l

indoor units.

–

00

Main

00

•When operating indoor units with different function within a same group, assign the indoor unit with the most plenty of function to the main unit.

• Set the address not to be overlapped with the indoor unit address.

The lowest address of indoor unit within refrigerant system + 50

The address of the indoor unit connected to the sub BC controller must be larger than that of the indoor unit connected to the main BC controller. If applicable, set the sub BC controllers in an R2 system in the following order: (1)

Indoor unit to be connected to the main BC controller

(2)

Indoor unit to be connected to No.1 sub BC controller

(3)

Indoor unit to be connected to No.2 sub BC controller

Set the address so that (1) < (2) < (3)

•

Use the address that equals the sum of the smallest indoor unit address out of all the indoor units that are connected to the sub BC controller and 50.

Outdoor (Heat source) unit address +1

Requires a branch-number setting.

Set to the main unit address within a same group in serial order

• To set the address to “100,” set it to “50”.

• If the address of main BC controller overlaps with the address of the outdoor (heat source) unit or the sub BC controller, use an unused address within the setting range.

• The use of a sub BC controller requires a main BC controller.

NO

Control wiring example

Prohibited items Allowable length

Connection to the BC controller

Numbers in the squares indicate pipe-end connection number.

– Example to use shielded wire –

System controller

Note 2

Note 1

IC

TB5 TB

15

12

01

IC

TB5 TB

15

12

02

IC

TB5 TB

15

12

04

IC

TB5 TB

15

12

06

A1 B2

MA

A1 B2

MA

A1 B2

MA

IC

TB5

12

TB

15

IC

TB5 TB

15

12

0503

GroupGroup

Group Group

L2

L22

L3

IC

TB5 TB

15

12

07

IC

TB5 TB

15

12

08

A1 B2

MA

Group

L6L5 L7

IC

TB5 TB

15

12

09

IC

TB5 TB

15

12

10

A1 B2

MA

Group

L26 L27

L4

L23 L24 L25

A1 B2

MA

L31

L32

S

M1M2

S

M1M2SM1M2

S

M1M2

S

M1M2

S

M1M2SM1M2

S

M1M2

S

M1M2SM1M2

S

M1M2M1M2

S

M1M2

S

M1M2

S

M1M2SM1M2

S

M1M2

S

M1M2

S

M1M2SM1M2

S

M1M2

OC

TB3

TB7

51

BC

TB02

52 57

OC

TB3

TB7

53

TB02

BS

TB02

BS

TB02

L1

L21

CN41→CN40 Replace SW2-1 OFF→ON

Leave CN41 as it is. SW2-1 OFF→ON

1 1 2 1 222 12

57

1 1 2 4 4323 4

54 59

IC

TB5 TB

15

12

11

IC

TB5 TB

15

12

A1 B2

MA

Group

L9 L10

61

BS

TB02

1 212

L8

Connect

1. M-NET and MA remote controllers can not be connected together to the indoor unit within the same group.

2. MA remote controller of 3 units or more can not be connected to the indoor unit within the same group.

3. Do not connect together the terminal blocks (TB5) of the indoor unit connected to different outdoor (heat source) units.

6. When the total number of indoor units exceeds 26 units Including that above Type 200, a transmission booster is required. When the transmission booster is used, BC and BS cannot be connected to TB3 (indoor unit side) on the transmission booster.

4. Replacement of the power supply selecting connector (CN41) on the outdoor (heat source) unit should be done only on one

outdoor (heat source) unit.

5. Grounding work is required for S-terminal of the centralized control transmission block (TB7) on one outdoor (heat source)

unit only.

Notes:

1. Leave SW2-1 as “OFF” when connecting LM adapter only.

2. LM adapter requires the power source of 1-phase AC 230V.

a. Indoor/outdoor transmission line

Farthest length (1.25mm2 or more) L1 + L2 + L3 + L4 + L5 + L6 + L7 + L8 + L9 + L10 200m L21 + L22 + L23 + L24 + L25 + L26 + L27 200m

b. Centralized control transmission line

Farthest length via outdoor (heat source) unit (1.25mm

2

or more)

L32 + L31 + L1 + L2 + L3 + L4 + L5 + L6+ L7 + L8 + L9 + L10

c. MA remote controller wiring

The same as 1. (1)

≤

L32 + L21 + L22 + L23 + L24 + L25 + L26 + L27 L1 + L2 + L3 + L4 + L5 + L6 + L7 + L8 + L9 + L10

500m

≤

500m

≤

+ L31 + L21 + L22 + L23 + L24 + L25 + L26 + L27 500m

≤

- 30 -

1. System using MA remote controller

(5)

Connecting (multiple) BC controllers in R2 and WR2 systems (with the system controller connected to the transmission lines for centralized control)

1 Indoor unit

2 LOSSNAY

3

MA remote controller

Outdoor (Heat source) unit

4

Main unit

Sub unit

Main unit

BC Controller (sub)

BC Controller (main)

Sub unit

IC

LC

MA

OC

MA

01 ~ 50

Not required

52 ~ 100

51 ~ 100

Sub unit

Wiring method • Address setting method

a. Indoor/outdoor transmission line

Connection of shielded wire: The same as 1. (1)

Connection of shielded wire The same as 1. (4)

b. Centralized control transmission line

The same as 1. (4)

c. MA remote controller wiring The same as 1. (1)

For 2-remote controller operation: The same as 1. (1)

For indoor group operation:

The same as 1. (1)

d. LOSSNAY connection The same as 1. (4)

e. Switch setting Address setting is required as listed below.

Order

Unit or controller

Address

Setting method Caution

Factory

setting range

setting

[Main unit +1, +2, +3, .... ]

5

Auxiliary units

BS

BC

Set with main/sub selector switch.

–

00

Main

00

• Assign the smallest address within the group to the indoor unit to become the main unit.

• The address of the indoor unit connected to the sub BC controller must be larger than that of the indoor unit connected to the main BC controller.

• If applicable, set the sub BC controllers in an R2 system in the following order: (1)

Indoor unit to be connected to the main BC controller

(2)

Indoor unit to be connected to No.1 sub BC controller

(3)

Indoor unit to be connected to No.2 sub BC controller

Set the address so that (1) < (2) < (3)

• To set the address to “100,” set it to “50”.

• If the address of main BC controller overlaps with the address of the outdoor (heat source) unit or the sub BC controller, use an unused address within the setting range.

• The use of a sub BC controller requires a main BC controller.

•

Using the system controller, make the same indoor group setting that was made with the MA remote controller.

• Set the address not to be overlapped with the indoor unit address.

• R2 and WR2 types require a branch number setting.

Use the address that equals the sum of the smallest indoor unit address out of all the indoor units that are connected to the sub BC controller and 50.

The lowest address of indoor unit within refrigerant system + 50

Outdoor (Heat source) unit address +1

Set to the main unit address within a same group in serial order

Connect terminals M1 and M2 of the indoor-outdoor transmission line terminal block (TB3) on the outdoor (heat source) unit (OC) to the terminals M1 and M2 of the indoor-outdoor transmission terminal block (TB02) of the main BC controller (BC) and the sub BC controller (BS) and terminals M1 and M2 of the indoor-outdoor transmission terminal block (TB5) on each indoor unit (IC). ❉ Make sure to use shielded wire.

Set any address after setting all indoor units.

- 31 -

- 32 -

IC

TB5 TB

15

12

01

IC

TB5 TB

15

12

07

A1 B2

MA

A1 B2

MA

TB5

05

IC

TB5

12

TB

15

IC

TB5 TB

15

12

0403

TB5

06

A1 B2

MA

L3L2L1 L4

L23L22L21 L24

L31

L25

NO

a. Indoor/outdoor transmission line

Farthest length (1.25mm2 or more) L1 + L2 + L3 + L4 200m L21 + L22 + L23 + L24 200m L25 200m

b. Centralized control transmission line

Farthest length via outdoor (heat source) unit (1.25mm2 or more)

L25 + L31 + L1 + L2 + L3 + L4 500m L1 + L2 + L3 + L4 + L31 + L21 + L22 + L23 + L24 500m

c. MA remote controller wiring

The same as 1. (1)

Control wiring example

Group

Prohibited items Allowable length

1. M-NET and MA remote controllers can not be connected together to the indoor unit within the same group.

2. MA remote controller of 3 units or more can not be connected to the indoor unit within the same group.

3. Do not connect together the terminal blocks (TB5) of the indoor unit connected to different outdoor (heat source) units.

4. Replacement of the power supply selecting connector (CN41) on the outdoor (heat source) unit should be done only on one

outdoor (heat source) unit.

5. Grounding work is required for S-terminal of the centralized control transmission block (TB7) on one outdoor (heat source)

unit only.

6. The system controller connectable to the indoor/outdoor transmission line counts for 3 sets maximum. While G-50 counts for only 1 set

7. When the total number of indoor units exceeds 26 sets, th e system controller may not be connected to the indoor/outdoor transmission line.

8. When the total number indoor units exceed 18 sets and they includes Type 200 or above, the system controller may not

be connected to the indoor/outdoor transmission line.

Interlocking with ventilation

– Example to use shielded wire –

Group

LC

Note 1

System controller

Note 1. LM adaptor may not be connected to indoor/outdoor transmission line.

≤

✻1.BC and BS are found only in the R2 and WR2 systems.

NO

OC

TB3

TB7

51

✻1 BC

TB02

52

OC

TB3

TB7

53

✻1 BC

TB02

54

TB02

57

✻1 BS

Connect

CN41→CN40 Replace SW2-1 OFF→ON

Leave CN41 as it is. SW2-1 OFF→ON

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2M1M2

1. System using MA remote controller

(6) In the case of connecting system controller to indoor/outdoor transmission line (excluding LM adaptor)

- 33 -

Wiring method • Address setting method

a. Indoor/outdoor transmission line

❉ Make sure to use shielded wire.

Connection of shielded wire:

For the grounding of shielded wire, apply jumper wiring between the grounding screw of OC, S-terminal of the terminal block (TB3), and S-terminal of the system controller.

b. Centralized control transmission line

Apply jumper wiring between M1, M2 terminals of centralized control transmission line terminal blocks (TB7) on each OC. On one OC only, replace the power selecting connector (CN41) with (CN40). Set the centralized control switch (SW2-1) on the main board of all outdoor (heat source) units to “ON.” ❉ Make sure to use shielded wire.

Connection of shielded wire:

Apply jumper wiring to connect the shielded earth to S-terminal of the terminal block (TB7) on each OC. Connect Sterminal of the terminal block (TB7) on one OC with (CN40) connected to the earth screw ( ) of the electrical parts box.

c. MA remote controller wiring

The same as 1. (1)

For 2-remote controller operation:

The same as 1. (1)

For indoor unit group operation:

The same as 1. (2)

d. LOSSNAY connection

Apply jumper wiring to connect M1, M2 terminals of the terminal block (TB5) on (IC) to the terminal block (TB5) on the indoor/outdoor transmission line terminal block (TB5) on Lossnay (LC). (with non-polarity two wires)

❉ The interlocking registration of the indoor unit and Lossnay is required from the system controller. (For the

registration method, see the instruction manual of system controller.) To connect ON/OFF remote controller only, interlocking registration from the remote controller is required.

e. Switch setting Address setting is required as follows.

Daisy-chain the M1 and M2 terminals of the indoor-outdoor transmission terminal block (TB3) on the outdoor (heat source) unit (OC), M1 and M2 terminals of the indoor-outdoor transmission line terminal block (TB02) on the BC controller (BC), and M1 and M2 terminals of the indoor-outdoor transmission line terminal block (TB5) on each indoor unit. (with non-polarity two wires)

1 Indoor unit

2 LOSSNAY

3

MA remote controlle

4 Outdoor (Heat source) unit

r

Main unit

Sub unit

Main uni

t

BC Controller (sub)

BC Controller (main)

Sub unit

IC

LC

MA

OC

MA

01 ~ 50

Not required

52 ~ 100

51 ~ 100

Not required

Order

Unit or controller

Address

Setting method Caution

Factory

setting range

setting

Set any address after setting all indoor units.

5

Auxiliary units

BS

BC

Set with main/sub selector switch.

–

00

Main

00

The lowest address of indoor unit within refrigerant system + 50

• Set the lowest address within a same group to the indoor unit desired to be the main unit.

• The address of the indoor unit connected to the sub BC controller must be larger than that of the indoor unit connected to the main BC controller.

• If applicable, set the sub BC controllers in an R2 system in the following order:

(1) Indoor unit to be connected to

the main BC controller

(2) Indoor unit to be connected to

No.1 sub BC controller

(3) Indoor unit to be connected to

No.2 sub BC controller

Set the address so that (1) < (2) < (3)

Set to the main unit address within a same group in serial order

[Main unit +1, +2, +3,....]

Use the address that equals the sum of the smallest indoor unit address out of all the indoor units that are connected to the sub BC controller and 50.

Outdoor (Heat source) unit address +1

• When operating indoor units with different function within a same group, as-sign the indoor unit with the most plenty of function to the main unit.

• Requires a branch-number setting.

• Set the address not to be overlapped with the indoor unit address.

• To set the address to “100,”

set it to “50”.

• If the address of main BC con-

troller overlaps with the address of the outdoor (heat source) unit or the sub BC controller, use an unused address within the setting range.

• The use of a sub BC controller

requires a main BC controller.

- 34 -

IC

TB5 TB

15

12

01

101

103

102

IC

TB5 TB

15

12

07

A1 B2

RC

A1 B2

RC

TB5

05

IC

TB5

12

TB

15

IC

TB5 TB

15

12

0403

TB5

06

A1 B2

RC

L3 L4

L23 L24

L2L1

L22L21

L31

L32

NO

Control wiring example

Group

Prohibited items Allowable length

Interlocking with ventilation

– Example to use shielded wire –

Group

LC

Note 2

System controller

✻1.BC and BS are found only in the R2 and WR2 systems.

1. A group of indoor units cannot be connected to both M-NET remote controller and MA remote controllers.

2. No more than 2 M-NET remote controllers can be connected to a group of indoor units.

3. Do not connect the TB5’s (Terminal block) of the indoor units that are connected to different outdoor (heat source) units.

4. Replace CN41 (power supply switch connector on outdoor (heat source) units) on only one of the outdoor (heat source) units.

5. Ground the S terminal of TB7 on only one of the outdoor (heat source) units.

6. Transmission line booster is necessary when the total number of connected indoor units exceeds 20 (19 with 1 BC and 18 with 1 BC and BS each). When the transmission booster is used, BC and BS cannot be connected to TB3 (indoor unit side) on the transmission booster.

7. Transmission line booster is necessary if the system includes indoor units of 200 or higher and the total number of indoor units exceeds 16 (15 with 1 BC and 14 with 1 BC and BS each).

a. Indoor/outdoor transmission line

b. Centralized control transmission line

c. M-NET remote controller wiring

The same as 2. (1)

The same as 1. (4)

The same as 1. (3)

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2M1M2

NO

OC

TB3

TB7

51

✻1 BC

TB02

52

OC

TB3

TB7

53

✻1 BC

TB02

54

TB02

57

✻1 BS

Connect

Note1

Notes:

1. Leave SW2-1 as “OFF” when connecting LM adapter only.

2. LM adapter requires the power source of 1-phase AC 230V.

CN41→CN40 Replace SW2-1 OFF→ON

Leave CN41 as it is. SW2-1 OFF→ON

2. System Using the M-NET Remote Controller

(1) System with the system controller connected to the transmission lines for centralized control

- 35 -

BC Controller (sub)

BC Controller (main)

52 ~ 100

5

Auxiliary units

BS

BC

00

Use the address that equals the sum of the smallest indoor unit address out of all the indoor units that are connected to the sub BC controller and 50.

Outdoor (Heat source) unit address +1

a. Indoor/outdoor transmission line

Connection of shielded wire:

b. Centralized control transmission line

c. M-NET remote controller wiring

The same as 1. (3)

For 2-remote controller operation:

The same as 1. (1)

Connection of shielded wire:

The same as 1. (4)

For a 2-remote-controller operation, connect each of the terminals M1 and M2 of the IC terminal block to the two

RC terminal blocks respectively.

Indoor unit group operation

To operate IC’s as a group, connect the M1, M2 terminals of the terminal block on the main IC in the group with

the RC terminal block (with non-polar two wires)

❉M-NET remote controller can be connected at any point on the indoor/outdoor transmission line.

❉To run a group operation of indoor units that have different functions, select the unit with the greatest number

of functions as the main unit.

The same as 1. (4)

For indoor unit group operation:

d. LOSSNAY connection

M-NET remote controller wiring

Connect each of the M1 and M2 terminals of TB5 (indoor/outdoor transmission line terminal block) on the IC to

the terminals on the M-NET remote controller.

e. Switch setting Address setting is required as follows.

1 Indoor unit

2 LOSSNAY

3

M-NET remote controller

4 Outdoor (Heat source) unit

Main unit

Sub unit

Main unit

Sub unit

IC

OC

LC

RC

01 ~ 50

51 ~ 100

101 ~ 150

151 ~ 200

Order

Unit or controller

Address

Setting method Caution

Factory

setting range

setting

00

101

00

Starting with the number main unit address +1, assign a sequential number to each of the rest of the indoor units.

After all indoor units have received an address, use any remaining number and assign it to the Lossnay unit. units.

The smallest indoor unit address in the same refrigerant system +50

The address of the main unit in the same group +100

The address of the main unit in the same group +150

• Assign the smallest address within the group to the indoor unit to become the main unit.

• Assign a larger address to the indoor unit that is connected to the R2-type sub BC controller than the one assigned to the indoor unit connected to the main BC controller.

• If applicable, set the sub BC con-

trollers in an R2 system in the following order: (1) Indoor unit to be connected to

the main BC controller

(2) Indoor unit to be connected to

No.1 sub BC controller

(3) Indoor unit to be connected to

No.2 sub BC controller

Set the address so that (1) < (2) < (3)

• Make the initial setting of the indoor unit group setting with the system controller (MELANS).

• Branch numbers must be set for systems with R2 and WR2.

• The Lossnay address must not overlap with the indoor unit address.

• 100’ s digit does not need to be set.

• Set the address to “ 00 ” when setting it to “ 200 ”.

• Set the address to “ 50 ” when setting it to “ 100 ”.

Wiring method • Address setting method

• To set the address to “100,” set it to “50”.

• If the address of main BC controller overlaps with the address of the outdoor (heat source) unit or the sub BC controller, use an unused address within the setting range.

• The use of a sub BC controller requires a main BC controller.

- 36 -

IC

TB5 TB

15

12

01

IC

TB5 TB

15

12

02

IC

TB5 TB

15

12

07

104

IC

TB5 TB

15

12

06

A1 B2

MA

A1 B2

RC

A1 B2

MA

IC

TB5

12

TB

15

IC

TB5 TB

15

12

0503

L2L1

L22L21

L3 L4

L23 L24

105

A1 B2

RC

L31

L32

NO

a. Indoor/outdoor transmission line

The same as 1. (3)

b. Centralized control transmission line

The same as 1. (4)

c-1. MA remote controller wiring

The same as 1. (1)

c-2. M-NET remote controller wiring

The same as 2. (1)

Control wiring example

Group

Prohibited items Allowable length

1. Make sure to connect the system controller.

2. M-NET and MA remote controllers can not be connected together to the indoor unit within a same group.

3. M-NET remote controller of 3 units or more can not be connected to the indoor unit within a same group.

6.

7.

8. When the total number of indoor units exceeds 20 sets, transmission line booster is required. When the transmission booster is used, BC and BS cannot be connected to TB3 (indoor unit side) on the transmission booster.

9. When the total number of indoor units exceed 16 sets and they include Type 200 or above, the transmission line booster is required.

– Example to use shielded wire –

Group

Note 2

System controller

Notes:

1. Leave SW2-1 as “OFF” when connecting LM adapter only.

2. LM adapter requires the power source of 1-phase AC 230V.

Note1

Group

Replacement of the power supply selecting connector (CN41) on the outdoor (heat source) unit should be done only on one outdoor (heat source) unit.

Grounding work is required for S-terminal of the centralized control transmission block (TB7) on one outdoor (heat source)

unit only.

CN41→CN40 Replace SW2-1 OFF→ON

Leave CN41 as it is. SW2-1 OFF→ON

4. MA remote controller of 3 units or more can not be connected to the indoor unit within a same group.

5. Do not connect together the terminal blocks (TB5) of the indoor unit connected to different outdoor (heat source) units.

OC

TB3

TB7

51

✻2 BC

TB02

52

OC

TB3

TB7

53

✻2 BC

TB02

54

TB02

57

✻2 BS

NO

Connect

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2M1M2

3. System where MA remote controller and M-NET remote controller coexist

- 37 -

Indoor unit

MA remote controller

Indoor unit

M-NET remote controller

Wiring method • Address setting method

a. Indoor/outdoor transmission line The same as 1. (3)

Connection of shielded wire: The same as 1. (1)

b. Centralized control transmission line The same as 1. (4)

Connection of shielded wire: The same as 1. (4)

c-1. MA remote controller wiring, For 2-remote controller operation: , For indoor unit group operation:

The same as 1. (1)

c-2. M-NET remote controller, For 2-remote controller operation: , For indoor unit group operation:

The same as 2. (1)

d. Lossnay connection The same as 1. (4) e. Switch setting Address setting is required as follows.

Operation with MA remote controller

Operation with M-NET remote ontroller

Lossnay

Outdoor (Heat source) unit

IC

MA

IC

RC

LC

OC

01 ~ 50

Not

required

Sub remote

controller

01 ~ 50

101 ~ 150

151 ~ 200

01 ~ 50

51 ~ 100

52 ~ 100

Order

Unit or controller

Address

Setting method Caution

Factory

setting range

setting

–

00

Main

00

101

00

Main unit

Sub unit

Main unit

Sub unit

Main unit

Sub unit

Main unit

Sub unit

1

2

3

4

BC Controller (sub)

BC Controller (main)

5

Auxiliary units

BS

BC

• To set the address to “100,” set it to “50”.

• If the address of main BC controller overlaps with the address of the outdoor (heat source) unit or the sub BC controller, use an unused address within the setting range.

• The use of a sub BC controller requires a main BC controller

Use the address that equals the sum of the smallest indoor unit address out of all the indoor units that are connected to the sub BC controller and 50.

Outdoor (Heat source) unit address +1

• Set the lowest address within a same group to the indoor unit desired to be the main unit.

• Assign a larger address to the indoor unit that is connected to the R2-type sub BC controller than the one assigned to the indoor unit connected to the main BC controller.

• If applicable, set the sub BC con-

trollers in an R2 system in the following order: (1) Indoor unit to be connected to

the main BC controller

(2) Indoor unit to be connected to

No.1 sub BC controller

(3) Indoor unit to be connected to

No.2 sub BC controller

Set the address so that (1) < (2) < (3)

• After setting the address of the indoor unit to be operated with MA controller, set the lowest address among the same group to the indoor unit desired to be the main unit.

• Assign a larger address to the indoor unit that is connected to the R2-type sub BC controller than the one assigned to the indoor unit connected to the main BC controller.

• Set lower address than that of the indoor unit connected to M-NET remote controller.

• Initially set the same setting detail as that of indoor unit group executed in the wiring of MA remote controller with system controller.

• Branch numbers must be set for systems with R2 and WR2.

• Initially set the same setting detail as that of indoor unit group with system controller.

• Branch numbers must be set for a system with R2.

• 100 digits are not required to set.

• When setting the address as “200,” make it “00.”

• When setting the address to “100,” make it “50.”

• Set so that not duplicating with the indoor unit addresses.

Set to the main unit address within a same group in serial order.

[Main unit +1, +2, +3,

....]

Set to the main unit address within a same group in serial order.

[Main unit +1, +2, +3,

....]

Main unit address inside a same group + 100

After setting all indoor units, set any address.

The lowest address of indoor unit within refrigerant system + 50

Main unit address inside a same group + 150

Set by using the main/sub selector switch

- 38 -

For the piping connection, the end branching system is applied where the end of refrigerant piping from the heat source unit is branched and connected to each indoor unit. As the piping connection method, the indoor unit is applied with flare connection, heat source unit gas piping is flange connection, and liquid piping is flare connection. For the branching, brazed connection is applied.

Warning

Be careful not to leak refrigerant gas (R410A) near a fire. Refrigerant gas if touched a fire of gas oven and the like will be decomposed to generate poisonous gas leading to gas-poisoning. Do not conduct welding work in a closed room. Run a gas leak test after completing refrigerant piping work.

Do not use a charging cylinder.

• Using a charging cylinder may cause the refrigerant to deteriorate.

Do not use existing refrigerant piping.

• The old refrigerant and refrigerator oil in the existing piping contains a large amount of chlorine which may cause the refrigerantor oil of the new unit to deteriorate.

Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing. (Store elbows and other joints in a plastic bag.)

• If dust, dirt, or water enters the refrigerant cycle, deterioration of the oil and compressor trouble may result.

Caution

Do not use a refrigerant other than that indicated on the equipment at installation or movement.

•Mixing of different refrigerant or air makes the refrigeration cycle abnormal causing breakage and the like.

Warning

Caution

Use refrigerant piping phosphorus deoxidized copper. In addition, be sure that the inner and outer surface of the pipes are clean and free of hazardous sulphur, oxides, dust/dirt, shaving particles, oils, moisture, or any other contaminant.

• Contaminants on the inside of the refrigerant piping may cause

the refrigerant residual oil to deteriorate.

Caution

Use liquid refrigerant to fill the system.

• If gas refrigerant is used to seal the system, the composition of the refrigerant in the cylinder will change and performance may drop.

[4] Restrictions on Refrigerant Piping Length

- 39 -

B

A

a

b

c

d

e

400

350

300

250

200

30 40 50 60 70 80 90 100 110

70

60

40

30

50

10

20

0

051015

Note 1: Use the figures in the parentheses if the capacity of the connected indoor units is P200 type or above. Note 2: Refer to the graph below for restrictions on refrigerant piping length when the total piping length exceeds 300 m. Note 3: Refer to the graph below for restrictions on refrigerant piping length when the piping length between the BC

controller and the farthest indoor unit exceeds 40 m. (except P250-type indoor units) Note 4: When indoor units of P200 type or above are connected, neither branch joints nor branch headers can be used. Note 5: Do not connect P200- or P250-type indoor units and other types of indoor units at the same pipe end connection.

[16 branches or less (the use of only the main BC controller or standard BC controller)]

BC controller

Indoor unit

Heat

source

unit

Indoor unit

Indoor unit Indoor unit

110 m or less

40 m or less

(P141~P250 types: 2-line merge)

• Restrictions on piping length

Total piping length (m)

Piping length between main BC controller

and farthest indoor unit (m)

• Height difference and branch piping length between BC controller and indoor unit. (A)

Distance between heat source unit and

BC controller (m)

Height difference between main BC controller and

farthest indoor unit (m)

Maximum of 3 units per branch joint Total capacity of P140 or less (All units connected to the same branch joint must be in the same mode.)

Junction pipe (option)

Branch pipe (for Y-series)

CMY-Y102S-G

H = 50 m or less (outdoor unit above)

H’ = 40 m or less (outdoor unit below)

h1 = 15 m or less

h2 = 15 m or less

Total piping length

A + B + a + b + c + d + e

Piping length

Farthest piping length

Between heat source unit - BC controller

Height difference

Between BC controller and indoor unit

Between indoor unit and BC controller

Between indoor units

Between indoor unit and heat source unit

Heat source unit above

Heat source unit below

300 m less (Note 2)

A + e

150 m or less

(175 m equivalent length or less)

A 110 m or less

e 40 m or less (Note 3)

H 50 m or less

H’ 40 m or less

h1 15 m or less (10 m or less) (Note 1)

h2 15 m or less (10 m or less) (Note 1)

Item Piping sections Allowable value

1. Line-branch method

■PQRY-P200,P250YGM-A

B

A

a

b

c

d

e

400

350

300

250

200

30 40 50 60 70 80 90 100 110

70

60

40

30

50

10

20

0

051015

Note:

A system with more than 16 branching requires 2 to 3 BC controllers (main/sub) and 3 pipes between BC controllers.

Note 1: Refer to the graph below for restrictions on refrigerant piping when the total piping length exceeds 300 m. Note 2: Refer to the graph below for restrictions on refrigerant piping length when the piping length between the BC

controller and the farthest indoor unit exceeds 40 m. (except P250-type indoor units) Note 3: Use the figures in the parentheses if the capacity of the connected indoor units is P200 type or above. Note 4: When indoor units of type P200 or above are connected, neither branch joints nor branch headers can be used. Note 5: When 2 sub BC controllers are connected, include them in the figures in the table above. Note 6: When 2 sub BC controllers are connected, connect them in parallel.

C

Note 6

f

g

h3

h4

[Systems that requires more than 16 pipe-end connections or with multiple BC controllers (with a use of both main and sub controllers)]

BC controller (main)

Indoor unit

Indoor unit Indoor unit

BC controller

(sub)

110 m or less

40 m or less

(P141~P250 types: 2-line merge)

• Restrictions on piping length

Total piping length (m)

Piping length between main BC controller

and farthest indoor unit (m)

• Height difference and branch piping length between BC controller and indoor unit. (A)

Distance between heat source unit and

BC controller (m)

Height difference between main BC controller and

farthest indoor unit (m)

Maximum of 3 units per branch joint Total capacity of P140 or less (All units connected to the same branch joint must be in the same mode.)

Junction pipe (option)

Branch pipe (for Y-series)

CMY-Y102S-G

H = 50 m or less (outdoor unit above)

H’ = 40 m or less (outdoor unit below)

h1 = 15 m or less

h2 = 15 m or less

Total piping length

A + B + C + a + b + c + d + e + f + g

Piping length

Farthest piping length

Between heat source unit - BC controller

Height difference

Between BC controller and indoor unit

Between indoor unit and BC controller

Between indoor units

Between indoor unit and heat source unit

Heat source unit above

Heat source unit below

300 m less

A + C + g or A + e

150 m or less

(175 m equivalent length or less)

A 110 m or less

e or C + g 40 m or less (Note 2)

Between main BC controller and sub BC controller

h3 15 m or less

H 50 m or less

H’ 40 m or less

h1 15 m or less (10 m or less) (Note 3)

h2 15 m or less (10 m or less) (Note 3)

Between indoor (main BC controller) and indoor (sub BC controller) units

h4

15 m or less (10 m or less)

(Notes 3 and 5)

Indoor unitIndoor unit

Item Piping sections Allowable value

Heat

source

unit

- 40 -

■PQRY-P200,P250YGM-A

B

A

D

a

b

c

d

e

400

350

300

250

200

30 40 50 60 70 80 90 100 110

70

60

40

30

50

10

20

0

051015

Note 1: Use the figures in the parentheses if the capacity of the connected indoor units is P200 type or above. Note 2: Refer to the graph below for restrictions on refrigerant piping length when the total piping length exceeds 300 m. Note 3: Refer to the graph below for restrictions on refrigerant piping length when the piping length between the BC

controller and the farthest indoor unit exceeds 40 m. (except P250-type indoor units) Note 4: When indoor units of P200 type or above are connected, neither branch joints nor branch headers can be used. Note 5: Use optional extension wire for water-source unit to leave a space between the compressor unit and the heat

exchanger. Note 6: The piping length between the compressor unit and the heat exchanger unit must be 10m or less.

[16 branches or less (the use of only the main BC controller or standard BC controller)]

BC controller

Indoor unit

Heat

exchanger

unit

(Heat source unit)

Compre-

ssor

unit

Indoor unit

Indoor unit Indoor unit

110 m or less

40 m or less

(P141~P250 types: 2-line merge)

• Restrictions on piping length

Total piping length (m)

Piping length between main BC controller

and farthest indoor unit (m)

• Height difference and branch piping length between BC controller and indoor unit. (A)

Distance between heat source unit and

BC controller (m)

Height difference between main BC controller and

farthest indoor unit (m)

Maximum of 3 units per branch joint Total capacity of P140 or less (All units connected to the same branch joint must be in the same mode.)

Junction pipe (option)

Branch pipe (for Y-series)

CMY-Y102S-G

H = 50 m or less (Compressor unit above)

H’ = 40 m or less (Compressor unit below)

h1 = 15 m or less

h2 = 15 m or less

h3 h3’

Piping lengthHeight difference

Total piping length

Farthest piping length

Between Compressor unit - BC controller

Between BC controller and indoor unit

Between indoor unit and BC controller

Between indoor units

Compressor unit above

Compressor unit below

A + D + e

A + D 110 m or less

40 m or less (Note 3)

50 m or less

40 m or less

15 m or less (10 m or less) (Note 1)

Compressor unit above

Compressor unit below

0 m

10 m or less

300 m or less (Note 2)

150 m or less

(175 m equivalent length or less)

e

Between Compressor unit and Heat exchanger unit

10 m or less (Note 5, Note 6)

D

H

H’

h1

h2

h3

h3’

Piping sections Allowable value

Item

A + B + D + a + b + c + d + e

Between Compressor unit and Heat exchanger unit

Between indoor unit and Compressor unit

■PQRY-P400,P500YSGM-A

- 41 -

B

a

b

c

d

e

400

350

300

250

200

30 40 50 60 70 80 90 100 110

70

60

40

30

50

10

20

0

051015

Note:

A system with more than 16 branching requires 2 to 3 BC controllers (main/sub) and 3 pipes between BC controllers. Note 1: Refer to the graph below for restrictions on refrigerant piping when the total piping length exceeds 300 m. Note 2: Refer to the graph below for restrictions on refrigerant piping length when the piping length between the BC controller

and the farthest indoor unit exceeds 40 m. (except P250-type indoor units) Note 3: Use the figures in the parentheses if the capacity of the connected indoor units is P200 type or above. Note 4: When indoor units of type P200 or above are connected, neither branch joints nor branch headers can be used. Note 5: When 2 sub BC controllers are connected, include them in the figures in the table above. Note 6: When 2 sub BC controllers are connected, connect them in parallel. Note 7: Use optional extension wire for water-source unit to leave a space between the compressor unit and the heat exchanger. Note 8: The piping length between the compressor unit and the heat exchanger unit must be 10m or less.

C

Note 6

f

g

h4

h5

A

D

[Systems that requires more than 16 pipe-end connections or with multiple BC controllers (with a use of both main and sub controllers)]

BC controller (main)

Indoor unit

Indoor unit Indoor unit

BC controller

(sub)

40 m or less

(P141~P250 types: 2-line merge)

• Restrictions on piping length

Total piping length (m)

Piping length between main BC controller

and farthest indoor unit (m)

• Height difference and branch piping length between BC controller and indoor unit. (A)

Distance between heat source unit and

BC controller (m)

Height difference between main BC controller and

farthest indoor unit (m)

Maximum of 3 units per branch joint Total capacity of P140 or less (All units connected to the same branch joint must be in the same mode.)

Junction pipe (option)

Branch pipe (for Y-series)

CMY-Y102S-G

H = 50 m or less (Copressor unit above)

H’ = 40 m or less (Copressor unit below)

h1 = 15 m or less

h2 = 15 m or less

Indoor unitIndoor unit

Heat

exchanger

unit

(Heat source unit)

Compre-

ssor

unit

110 m or less

h3’h3

Piping lengthHeight difference

Total piping length

Farthest piping length

Between Compressor unit - BC controller

Between BC controller and indoor unit

Between indoor unit and BC controller

Between indoor units

Between main BC controller and sub BC controller

Compressor unit above

Compressor unit below

A + C + D + g or A + e

e or C + g

A + D

110 m or less

40 m or less (Note 2)

Between Compressor unit and Heat exchanger unit

D

10 m or less (Note 7, Note 8)

50 m or less

40 m or less

15 m or less (10 m or less) (Note 3)

15 m or less

15 m or less (10 m or less)

(Note 3 and 5)

Compressor unit above

Compressor unit below

0 m

10 m or less

300 m or less

150 m or less

(175 m equivalent length or less)

H

H’

h1

h2

h3

h3’

h5

h4

Piping sections Allowable value

Item

A + B + C + D + a + b + c + d + e + f + g

Between Compressor unit and Heat exchanger unit

Between indoor unit and Compressor unit

Between indoor unit (main BC controller) and indoor unit (sub BC controller)

■PQRY-P400,P500YSGM-A

- 42 -

L

H

A

BCD

a

b

c

d

h

e

1

5

23 4

1 Line branching system

Item Piping section Allowable value

To tal piping length A + B + C + D + a + b + c + d +e Less than 300m

Length Farthest piping length (L) A + B + C + D + e

Farthest piping length after first branch ( ) B + C + D + e Less than 40m

Upper heat source unit H Less than 50m

Height

Indoor – Heat source

Lower heat source unit H’ Less than 40m

difference

Indoor – Indoor h Less than 15m

Note: The total model names downstream in the table below

represent that viewed from A-point in the above figure.

First branch

Indoor

Indoor Indoor Indoor

To downstream unit

Indoor

Less than 150m

L

H

A

a

b

c

d

h

e

f

Heat

source

unit

Heat

source

unit

6

345

1 2

2 Header branching system

Note: The branch piping can not be branched again after header branching.

First branch

Cap

Item Piping section Allowable value

To tal piping length A + a + b + c + d + e + f Less than 300m

Length Farthest piping length (L) A + f Less than 150m

Farthest piping length after first branch ( ) f Less than 40m

Height

Upper heat source unit H Less than 50m

Indoor – Heat source

Lower heat source unit Less than 40m

difference

Indoor – Indoor h Less than 15m

Indoor Indoor

Indoor Indoor Indoor

Indoor

H’

- 43 -

■PQHY-P200,P250YGM-A

L

H

A

B

C

a

b

c

d

h

e

1

2

345

H

3 Mixed line and header branching system

Note: The total model names downstream in the table below

represent that viewed from A-point in the above figure.

Note: The branch piping can not be branched

again after header branching.

First branch (Branch joint)

Branch joint

Indoor

Branch header

Cap

To downstream unit

Item Piping section Allowable value

To tal piping length A + B + C + a + b + c + d + e Less than 300m

Length Farthest piping length (L) A + B + b Less than 150m

Farthest piping length after first branch ( ) B + b Less than 40m

Upper heat source unit Less than 50m

Height

Indoor – Heat source

Lower heat source unit Less than 40m

difference

Indoor – Indoor h Less than 15m

Indoor Indoor Indoor

Indoor

H’

Heat

source

unit

- 44 -

L

H

A

BCD

a

b

c

d

h

e

1

5

23 4

1 Line branching system

Item Piping section Allowable value

To tal piping length

A + B + C + D + E + a + b + c + d +e

Less than 300m

Length Farthest piping length (L) A + B + C + D + E + e

Farthest piping length after first branch ( ) B + C + D + e Less than 40m

Upper Compressor unit H Less than 50m

Height

Indoor – Compressor unit

Lower Compressor unit H’ Less than 40m

difference

Indoor – Indoor h Less than 15m

Upper Compressor unit h2 Less than 0m

Compressor unit –

Heat exchanger unit

Lower Compressor unit h2’ Less than 10m

Upper Compressor unit h2 Less than 0m

Compressor unit –

Heat exchanger unit

Lower Compressor unit h2’ Less than 15m

Note: The total model names downstream in the table below

represent that viewed from A-point in the above figure.

First branch

Indoor

Indoor Indoor Indoor

To downstream unit

Indoor

Less than 150m

L

H

A

a

b

c

d

h

e

f

E

Heat

exchanger

unit

(Heat source unit)

Compre-

ssor

unit

h2

Heat

exchanger

unit

(Heat source unit)

Compre-

ssor

unit

h2

6

345

1 2

2 Header branching system

Note: The branch piping can not be branched again after

header branching.

First branch

Cap

Item Piping section Allowable value

To tal piping length A + a + b + c + d + e + f Less than 300m

Length Farthest piping length (L) A + f Less than 150m

Farthest piping length after first branch ( ) f Less than 40m

Height

Upper Compressor unit H Less than 50m

Indoor – Compressor unit

Lower Compressor unit Less than 40m

difference

Indoor – Indoor h Less than 15m

Indoor Indoor

Indoor Indoor Indoor

Indoor

H’

- 45 -

■PQHY-P400,P500YSGM-A

L

H

A

B

C

a

b

c

d

h

e

Upper Compressor unit h2 Less than 0m

Compressor unit –

Heat exchanger unit

Lower Compressor unit h2’ Less than 15m

1

2

345

H

3 Mixed line and header branching system

Note: The total model names downstream in the table below

represent that viewed from A-point in the above figure.

Note: The branch piping can not be branched

again after header branching.

First branch (Branch joint)

Branch joint

Indoor

Branch header

Cap

To downstream unit

Item Piping section Allowable value

To tal piping length A + B + C + a + b + c + d + e Less than 300m

Length Farthest piping length (L) A + B + b Less than 150m

Farthest piping length after first branch ( ) B + b Less than 40m

Upper Compressor unit Less than 50m

Height

Indoor – Compressor unit

Lower Compressor unit Less than 40m

difference

Indoor – Indoor h Less than 15m

Indoor Indoor Indoor

Indoor

H’

E

Heat

exchanger

unit

(Heat source unit)

Compre-

ssor

unit

h2

- 46 -

Note 1: Heat source units and BC controllers are supplied with flanges with a short copper pipe as a part used to

connect to the low pressure pipe.

✻ When 2 sub controllers are connected, determine the pipe size on the main side based

on the total capacity of the indoor units that are connected to the 2 sub controllers, and determine the pipe size on the sub controller side based on the total capacity of the units that are connected.

Note 2: Use pipes that are specified in the section “Read Before Servicing: [3] Piping Materials.”

1Between heat source unit and BC controller (Part A)

2Between BC controller and indoor unit (Parts a, b, c, d, and e)

3Between main BC controller and sub BC controller (Part C)

4Compressor unit and Heat exchanger unit (Part D)

Item

Refrigerant piping size

High pressure pipe

Low pressure pipe

High pressure pipe

Low pressure pipe

Heat source unit

ø 28.58 (Brazed)ø 22.2 (Brazed)ø 19.05 (Brazed)

ø 22.2 (Brazed)ø 19.05 (Brazed)ø 15.88 (Brazed)

ø 28.58ø 22.2ø 19.05

ø 22.2ø 19.05ø 15.88

PQRY-P500

YSGM-A

PQRY-P400

YSGM-A

PQRY-P250

YGM-A

PQRY-P200

YGM-A

End connection of heat source unit and BC controller

Item

Refrigerant piping size

Liquid pipe

Gas pipe

Liquid pipe

Gas pipe

Indoor unit

ø 22.2ø 15.88ø 12.7

ø 9.52ø 6.35

ø 22.2ø 15.88

ø 19.05

ø 19.05ø 12.7

ø 9.52ø 6.35

250200

63, 71, 80, 100

125, 140

20, 25, 32

40, 50

End connection of indoor unit (Flare connection for all unit types)

Item

Refrigerant piping size (Use brazing for all units.)

Low-pressure Liquid pipe

Liquid pipe

High-pressure Gas pipe

Indoor unit

ø 28.58ø 19.05 ø 22.2

ø 19.05ø 15.88

ø 12.7ø 9.52

P301~P350P201~P300~P200

Refrigerant pipe size

Heat source unit

Bypass pipe

Low-pressure pipe

High-pressure pipe

ø 28.58

ø 19.05

ø 9.52

PQRY-P500

YSGM-A

PQRY-P400

YSGM-A

PQRY-P250

YGM-A

PQRY-P200

YGM-A

- 47 -

2. Refrigerant piping size

<PQRY>

A (mm)

B, C, D (mm)

a, b, c, d, e (mm)

Downstream unit model total

The 1st branch of P450 ~ P650

Branch kit model

CMY-Y102S-G CMY-Y102L-G

CMY-Y202-G

Outdoor model

P200 P250

Liquid pipe

ø9.52

*1 ø9.52

Gas pipe

ø19.05

P400 ø12.7 ø28.58 P500 ø15.88 ø28.58

ø22.2

Total cap aci ty of indoor units

~ 140 141 ~ 200 201 ~ 300 301 ~ 400 401 ~ 650

Liquid pipe

ø9.52 ø9.52 ø9.52 ø12.7

ø15.88

Gas pipe

ø15.88 ø19.05

ø22.2 ø28.58 ø28.58

Model number 20,25,32,40,50

63,71,80,100,125,140

200 250

Liquid pipe

ø6.35 ø9.52 ø9.52 ø9.52

Gas pipe

ø12.7 ø15.88 ø19.05

ø22.2

4-Branching header

(Downstream unit

model total 200)

CMY-Y104-G

8-Branching header (Downstream unit model total 400)

CMY-Y108-G

10-Branching header Downstream unit

model total 650)

CMY-Y1010-G

*1 ø12.7 for over 90m

~ 200 201 ~ 400 401 ~ 650

- 48 -

<PQHY>

1 Total capacity of connectable indoor units: P140 or below (P250 or below when a junction pipe is used) 2 The number of connectable indoor units: 3 max. 3 Branch pipe: Use Type CMY-Y102S-G (option) 4 Selection of refrigerant piping (pipe size of the A and B in the figure above): Use the total capacity of the

downstream indoor units to determine the proper pipe size, using the table below as a reference.

Use an optional junction pipe kit and merge the 2 joints

Use the reducer that is supplied with the BC controller

(1) BC controller (standard model) end connection piping size

[P200,P250 types]

Note: Use the flare nut provided with the BC controller

Liquid pipe side: 3/8F

(flare)

Gas pipe side: 5/8F

(flare)

Liquid pipe side: 3/8F

(flare)

Gas pipe side: 5/8F

(flare)

Provided with a thermal insulation cover

Liquid pipe side:

ø 6.35 ID

Gas pipe side:

ø 12.7 ID

Liquid pipe side:

ø 9.52 ID

Gas pipe side:

ø 19.05 ID

(ø 22.2 with reducer)

Total capacity of the indoor units

P140 or below ø 15.88ø 9.52

P141~P200 ø 19.05ø 9.52

P201~P250

(❈) With reducer

ø 22.2 (❈)ø 9.52

Gas pipeLiquid pipe

To heat source unit

✻1

Reduce (supplied)

✻1: To connect P20-P50 type indoor units

✻3: To connect multiple indoor units to a branch joint (or to a junction pipe)

✻2: To connect P200 or P250 type indoor units

(or when the total capacity of the indoor units exceeds P141)

The size of the branch end connection on the BC controller is designed to fit P50-P140 type indoor units. To connect other types of indoor units, perform the following procedures.

✻2

Junction pipe kit (Type: CMYR160-J) (option)

Branch pipe (Type: CMY-Y102S-G)(option)

✻3

Maximum of 3 units per branch joint Total capacity of P140 or less (All units connected to the same branch joint must be in the same mode.)

End connection: brazed connection

BC controller

Item

Heat source unit side

Indoor unit side

High-pressure side

(liquid side)

Low-pressure side

(gas side)

Piping sections

ø 15.88

(Brazed)

ø 19.05

(Brazed)

ø 22.2

(Brazed)

ø 19.05

(Brazed)

ø 9.52

(Flare)

ø 15.88

(Flare)

✻ BC controllers (standard model) can only be connected to P200,P250

heat source units.

PQRY-P200YGM-A

PQRY-P250YGM-A

70

234

Indoor unitIndoor unitIndoor unitIndoor unitIndoor unit Indoor unit

P50 type

or below

P63-P140

types

P200-P250

types

BA

- 49 -

3. Connecting the BC controllers

<PQRY>

The size of the branch end connection on the BC controller is designed to fit P63-P140 type indoor units. To connect other types of indoor units, perform the following procedures.

✻1: To connect P20-P50 type indoor units, use the reducer that is supplied with the BC controller ✻2: To connect P200 or P250 type indoor units (or when the total capacity of the indoor units exceeds P141),

use an optional junction pipe kit (Type: CMY-R160-J) and merge the 2 joints.

✻3: To connect multiple indoor units to a branch joint (or to a junction pipe)

• Total capacity of connectable indoor units : P140 or below (P250 or below when a junction pipe is used)

• The number of connectable indoor units

: 3 max.

• Selection of refrigerant piping (pipe size of the A and B in the figure above) : Use the total capacity of the downstream indoor units to determine the proper pipe size, using the table below as a reference.

(2) BC controller (main) end connection piping size

Total capacity of the indoor units

P140 or below ø 15.88ø 9.52

P141~P200 ø 19.05ø 9.52

P201~P250

(❈) With reducer

ø 22.2 (❈)ø 9.52

Gas pipeLiquid pipe

To heat source unit

✻1

Reducer (supplied)

✻2

Junction pipe kit (Type: CMY-R160-J) (option)

Branch pipe (Type: CMY-Y102S-G) (For CITY MULTI Y series, option)

Maximum of 3 units per branch joint. Total capacity of P140 or less (All units connected to the same branch joint must be in the same mode.)

End connection: brazed connection

Main BC controller

Item

High-pressure side

(liquid side)

Low-pressure side

(gas side)

Piping sections

ø 19.05

(Brazed)

ø 22.2

(Brazed)

ø 28.58

(Brazed)

ø 15.88

(Brazed)

ø 19.05

(Brazed)

ø 22.2

(Brazed)

ø 9.52

(Flare)

ø 15.88

(Flare)

PQRY-P250YGM-A

PQRY-P200YGM-A

PQRY-P400YSGM-A

PQRY-P500YSGM-A

Heat source unit side

Indoor unit side

Indoor unitIndoor unitIndoor unitIndoor unitIndoor unit Indoor unit

P50 type

or below

P63-P140

types

P200-P250

types

BA

- 50 -

The size of the branch end connection on the BC controller is designed to fit P63-P140 type indoor units. To connect other types of indoor units, perform the following procedures.

✻1: To connect P20-P50 type indoor units, use the reducer that is supplied with the BC controller ✻2: To connect P200 or P250 type indoor units (or when the total capacity of the indoor units exceeds P141),

use an optional junction pipe kit (Type: CMY-R160-J) and merge the 2 joints.

✻3: To connect multiple indoor units to a branch joint (or to a junction pipe)

• Total capacity of connectable indoor units : P140 or below (P250 or below when a junction pipe is used)

• The number of connectable indoor units : 3 max.

• Selection of refrigerant piping (pipe size of the A and B in the figure above) : Use the total capacity of the downstream indoor units to determine the proper pipe size, using the table below as a reference.

(3) BC controller (sub) end connection piping size

Total capacity of the indoor units

P140 or below ø 15.88ø 9.52

P141~P200 ø 19.05ø 9.52

P201~P250

(❈) With reducer

ø 22.2 (❈)ø 9.52

Gas pipeLiquid pipe

Main BC controller

✻1

Reducer (supplied)

✻2

Junction pipe kit (Type: CMY-R160-J) (option)

Branch pipe (Type: CMY-Y102S-G) (For CITY MULTI Y series, option)

Maximum of 3 units per branch joint. Total capacity of P140 or less (All units connected to the same branch joint must be in the same mode.)

End connection: brazed connection

Sub BC controller

Item

BC controller side

High-pressure side

(liquid side)

Low-pressure side

(gas side)

Piping sections

ø 19.05

(Brazed)

ø 15.88

(Brazed)

ø 22.2

(Brazed)

ø 19.05

(Brazed)

ø 28.58

(Brazed)

Liquid side

ø 9.52

(Brazed)

ø 12.7

(Brazed)

Total capacity of indoor units connected to applicable BC controller

P200 type and below

P201-P300 types

P301 types and above

Indoor unitIndoor unitIndoor unitIndoor unitIndoor unit Indoor unit

P50 type

or below

P63-P140

types

P200-P250

types

BA

- 51 -

4-way valve

Accumulator

Compressor

Solenoid valve block

Check valve block

Heat exchanger

Sub box

Control box

Solenoid valve (SV7a~7c)

- 52 -

££

Components of the Heat source Unit

[1] Appearance of the Components and Refrigerant Circuit

< PQRY-P200, P250 >

4-way valve

Accumulator

Compressor

Solenoid valve block

Check valve block

Heat exchanger

Sub box

Control box

Subcool coil

< PQHY-P200, P250 >

- 53 -

Accumulator

Sub box

Control box

Compressor

Relay cable connector (Compressor unit Heat exchanger unit)

- 54 -

< PQRY-P400, P500 (Compressor unit) > < PQHY-P400, P500 (Compressor unit) >

✻This unit is both for PQHY and PQRY.

Solenoid valve (SV7a~7c)

4-way valve

Check valve block 2

Check valve block 1

Solenoid valve block 2

Solenoid valve block 1

Heat exchanger

Relay cable connector (Compressor unit Heat exchanger unit)

- 55 -

< PQRY-P400, P500 (Heat exchanger unit) >

- 56 -

Solenoid valve (SV7a~7c)

Subcool coil

4-way valve

Check valve block 2

Check valve block 1

Solenoid valve block 2

Solenoid valve block 1

Heat exchanger

Relay cable connector (Compressor unit Heat exchanger unit)

< PQHY-P400, P500 (Heat exchanger unit) >

- 57 -

Power supply terminal block (TB1)

Main board

Tr ansmission line terminal block for centralized control (TB7)

Indoor/outdoor transmission terminal block (TB3)

INV board

Choke coil (L1, L2)

Filter board

DCL (back)

Noise filter

Tr ansmission line terminal block for centralized control (TB7)

Indoor/outdoor transmission terminal block (TB3)

Rush current protection resistor (R11, R12)

Electromagnetic contactor (52C1)

Smoothing capacitor (C11, C12)

Gate amp board (G/A board)

Diode stack (DS)

Power supply terminal block (TB1)

ACCT-U ACCT-W IPM DCCT

[2] Control Box

[ Appearance ]

[ Under the circuit board cover ]

Pump interlock input Operation-ON signal output terminal block (TB8)

Relay board

- 58 -

[ Sub box ]

- 59 -

CNVCC1 Controlled source input

1–2

DC30V

1–3

DC30V

4–5

DC7V

4–6

DC12V

7–8

DC7V

CNRS3BLD2

CNAC3 Power output

3

L1

1

L2

CN20 Power input

5

L1

CN21 Power input

3

L2

1

N

LD1 Service LED

SW5 SW4 SW3 SW2SWU2 SWU1 SW1

CNLVB

CNLVC

CN3S

CN63PW

CN3D

CN3N

CNRS3A CNS1 CNS2 CN40 CN41

CNRT1

CNOUT1

CN52C Control for 52C1

CN51

3–4

Compressor ON/OFF

3–5

Trouble

CN38

[3] Circuit Board

1. Main board

- 60 -

CNVCC1 Power supply

1–2

DC30V

1–3

DC30V

4–5

DC7V

4–6

DC12V

7–8

DC7V

CN15V2 Power supply for IPM control

F02CNVDC

SW1

SW2

CN52C

CNFAN CNRS1 CNRS2

Serial transmission for MAIN board

CNCT2

CNAC2 Power input

5

L2

3

N

1

G

CNTH

CNCT

CNDR2

2. INV board

- 61 -

CNFG CNL2CNL1

CNOUT Controlled source output

CNIN Controlled source input

3. Filter board

CNDR1

CN15V1

CNDC1 CNDC2

CNIPM1

4. G/A board

CN81

Solenoid valve output for unit control (200V)

CNAC4

Power input

4

R-phase

1

S-phase

CN83 1

-

3

5

-

7

CNPW 1 - 2 Pump interlock signal output

to main circuit board

CNOUT2

Relay drive input from main circuit board

Operation-ON signal output Pump interlock input

- 62 -

5. Relay board (Heat source unit)

- 63 -

Gas pipe (indoor unit side)

Liquid pipe (indoor unit side)

LEV3

SVM2

PS1

PS3

LEV2

TH11

LEV1

LEV2PS3SVM1

PS1

LEV1 LEV3

TH15

TH16 TH12

TH11

SVM2

SVM1

High-pressure side (Heat source unit side)

✻ No SVM2 on G type

[4] BC controller (inside the panel)

< CMB-P V-G(A) >

[ Front (CMB-P1016V-G(A) is shown in the picture) ]

< CMB-P1016V-G >

- 64 -

Gas-liquid separator

Tube-in-tube heat exchanger

Gas-liquid separator

Tube-in-tube heat exchanger

[ Rear view (CMB-P1016V-G(A) is shown in the picture) ]

< CMB-P1016V-G >

< CMB-P1016V-GA >

- 65 -

LEV3a TH25

TH22

< CMB-P V-GB>

[ Front view (CMB-P104V-GB is shown in the picture) ]

[ Rear view (CMB-P104V-GB is shown in the picture) ]

- 66 -

BC controller board

Relay board

Te r minal block

for power supply

Te r minal block

for transmission

Tr ansformer

SW1SW2

SW4

SW5

[5] BC control box

[ BC controller control box (CMB-P1016V-GA is shown in the picture) ]

[6] BC controller board

[ BC controller board ]

- 67 -

[ Relay board (RELAY 4 board) ]

[ Relay board (RELAY 10 board) ]

- 68 -

Function/specification

Remote controller address setting

Not required Required

Indoor/outdoor unit address setting

Not required (required only by a system with one outdoor unit)(Note 3)

Required

Wiring method Non-polar 2 wires

✻

Daisy-chain the indoor units with non-polar 2 wires when running a group operation.

Non-polar 2 wires

Installation location of remote controller

Connectable to any indoor unit in the group

Connectible at any point on the indoor/outdoor transmission line

Interlocking with the ventilation unit

Each indoor unit can individually be interlocked with a ventilation unit. (Registered on the remote controller in the same group)

Each indoor unit can individually be interlocked with a ventilation unit. (Registered on the remote controller)

Making group changes

(Note 1) MA remote controller includes MA remote controllers, MA compact remote controllers, and wireless remote controllers. (Note 2) M-NET remote controller includes ME remote controllers and compact remote controllers. (Note 3) Depending on the system configuration, even a single refrigerant system may require an address setting. (Note 4) Either an MA remote controller or an M-NET remote controller can be connected to a group of multiple-refrigerant systems

or when a system controller is connected.

(Note 1) M-NET remote controllers and MA remote controllers cannot both be connected to the same group of indoor units. (Note 2) A system controller must be connected to a system that has both MA remote controllers and M-NET remote controllers.

MA remote controller wires between indoor units require rewiring.

Indoor unit and remote controller addresses must be changed, or the registration information must be changed using MELANS.

M-NET(ME)Remote Controller (Notes 2, 4)MA remote controller (Notes 1, 4)

MA remote controller (Notes 1, 2)

< A system using an MA remote controller > < System using an M-NET remote controller >

• Low chances of system expansion and grouping changes are expected.

• Grouping (floor plan) has been decided at the time of installation.

• High chances of centralized installation of remote controllers, system expansion, and grouping changes.

• Grouping (floor plan) has not been decided at the time of installation.

• Direct connection of the remote controller to the Lossnay inside the heater-humidifier.

M-NET (ME) remote controller (Notes 1, 2)

MA remote controller

Outdoor unit

Indoor unit M-NET remote controller

Outdoor unit

Indoor unit

M-NET transmission line (indoor/outdoor transmission line)

GroupGroup GroupGroup

¢¢

Remote Controller

[1] Functions and Specifications of MA and ME Remote Controllers

There are two types of remote controllers: M-NET (ME) remote controller, which is connected on the indoor/outdoor transmission line, and MA remote controller, which is connected to each indoor unit.

1. Comparison of Functions and Specifications of MA and ME Remote Controllers

2. Selecting the Best Type of Remote Controller

Select either the MA remote controller or the M-NET remote controller to take full advantage of a given system. The following information is provided as a reference for selection.

- 69 -

>

y]

door u

address

w

address

w

/

g

.

g

n

]

gs

:

g

bu

s

]

s

.

A

Select the unit address.

3

[SET TEMP. ( ) or ( )] to advance or go back

C

r

.

r

e

5

>

)

steps and above.

go to section (2) Address Search.

.

Press again to go back to the Group Setting window as shown

under step .

6

G

Both the indoor unit address and

interlocked unit address will be

.

y.

g

button [SET TEMP. ( ) or ( )] to advance or go back through

y

8

C

OSS

u

s.

- Press button [TEST] while both the indoor unit address and

OSS

d

g.

y

.

y)

y

pp

y.

(

d

address does no

a

)

;

p

.

[

Blinking display of HO ]

G

C

TIMER SET

ON/O

CHECKTEST

CLOCK

ON

[2] Group Setting and Interlocking Settings that are Made on an ME Remote Controller

1. Group setting/interlocking setting

Make the following settings to perform a group operation of units that are connected to different outdoor units or to manually set up the

outdoor unit address.

indoor (A) Group settin

and search and deletion of re

(B) Interlock settings........Registration of LOSSNAY units to be interlocked with the indoor units,

and search and deletion of re

[Operation Procedures

(1) Address settin

s...........Registration of the indoor units to be controlled with the remote controller,

istered information

istered informatio

Bring up either one of the following displays on the remote controller

normal display, which appears when the unit is stopped. The display window must look like one of the two fi

ures below to proceed to the next step.

[Normal displa

(B) Interlock Settings(A) Group Settings

tton

hown below

Indoor unit address display window

nit

In

display windo

Bring up the address of the indoor unit and the address of the LOSSNAY to be interlocked on the displa

- Select the address of the indoor unit to be registered by pressin

display.

- Select the address of the LOSSNAY unit to be interlocked b

- If registration is successfully completed, unit type will appea

on the display as shown in the figure below

- If the selected address does not have a corresponding indoo unit, an error message will appear on the display. Check th address, and try again.

Interlocked unit

display windo

FF

window

displayed together

To search for an address,

<Successful completion of registration

Unit type (Indoor unit in this case

<Deletion error

corresponding unit.

To register the addresses for multiple indoor units, repeat

To search for an address,

Make the settings to interlock L

NAY units with indoor

nit

the address of the L

NAY units to be interlocke

are displayed to enter the interlock settin

LOSSNAY address in the indoor unit address displa

address display window

If registration is successfully completed, the two displa shown on the left will a alternatel

(Displayed alternatel

will blink on the displa

Indicates that the selecte

corresponding unit.

NOTE : Interlock all the indoor units in the group with the LOSSNAY units not o

erate

otherwise, the LOSSNAY units will

s as

ear

t have

- 70 -

>

d>

(C) To return to the normal displa

y

(2)

h

searc

address o

door u

been entered

o

the remote controller, follow steps and .

gs

e

(

)

s

e

.

[

.

section (3) Address Deletion.

y)

,

go to section (3) Address Deletion .

y.

(The display method is the same as the one in step .)

ess

ed

OSS

t

ess

er

t

OSS

y

y.

y

.

h

proceed as follows:

y.

g

button [TIMER SET ( ) or ( )] to advance or go back

.

,

go to section (2) Address Search.

(3)

n

.

Follow the steps in section (2) Address Search to find the address to be deleted and perform deletion with the address being displayed in the

g

.

g.

y)

Bring up the Group Setting window.

- Each pressing of button [TIMER ] will bring up the address of a

.

When all the group settings and interlock settings are made, take the

Address searc

To

h for the

f in

nits that have

To search for an address

int

(A) To search group settin

registered indoor unit and its unit type on the display

<Entry found

Unit typ

Indoor unit in this case

<No entries foun

- When only one unit address is registered, the same addres will remain on the display regardless of how many times th button is pressed

To delete an address, go to

TIMER ]

(B) Interlock setting searc

the displa

- Select the address of the indoor unit to be searched by pressin

through the interlocked addresses

LOSSNAY can be searched in the same manner by bringing up the LOSSNAY address in the Interlocked unit address displa

L

NAY and indoor unit that is interlocked with it will be

displa

ed alternatel

Addr L

of an interlock

NAY uni

(Displayed alternatel

Bring up the address of another registered unit on the displa

window

unit.

To go back to the normal display,

Addr

of anoth

interlocked uni

(Displayed alternatel

To delete an address

Address deletio

The addresses of the indoor units that have been entered into the remote controller can be deleted by deleting the group settings The interlock settings between units can be deleted by deleting the interlock settings

display window. To delete an address, the address must first be bought up on the display.

Delete the re

istered indoor unit address or the interlock setting between units

display to delete the interlock settin

- 71 -

(A) To delete group settin

gs

>

.

e

p

.

y)

>

.

r

.

gs

y

r

gs

s

Y

y

will appear in

p

.

2. Remote controller functions selection via the ME remote controller

The default temperature ranges are 19 C to 30 C in the cooling/dry mode and 17 C to 28 C in the heating mode.

.

E

y]

seconds.

n

)

e

.

g

m

temperature. In this case, AUTO COOL or AUTO HEAT will appear on the remote controller display.

This setting can be changed so that only AUTO will appear on the display.

py py g p )

ed.

ude A

ed.

controller function selection modes

g

)Oper

e

a

r

)

e

ST

T

CLOCKONOFF

(B) To delete interlock settin

<Successful completion of deletion

will be displayed in the room temperature display window

(Displayed alternatel

- If a transmission error occurs, the selected setting will not b deleted, and the display will appear as shown below. In this case, re

eat the steps above

<Deletion error

will be displayed in the room temperature display window

(4) Making (A) Group settings and (B) Interlock settings of a group from any arbitrary remote controlle

(A) Group settings and (B) Interlock settings of a group can be made from any arbitrary remote controller

et the address as shown below

(A) To make group settin Interlocked unit address display window...Remote controller address Indoor unit address displa

window...........The address of the indoor unit to be controlled with the remote controlle

(B) To make interlock settin Interlocked unit address display window...LOSSNAY addres

Indoor unit address display window..........The address of the indoor unit to be interlocked with the LOSSNA

If deletion is successfull completed,

window. In this case, repeat the ste

s above

In the remote controller function selection mode, the settings for three types of functions can be made or changed as necessary.

When the automatic operation mode is selected, the indoor unit will automatically perform a cooling or heating operation based on the roo

2) Room temperature display selection mode (Display or non-display of room temperature Although the suction temperature is normally displayed on the remote controller, the setting can be changed so that it will not appear on th remote controller

By changing these ranges (raising the lower limit for the cooling/dry mode and lowering the upper limit for the heating mode), energy can be saved

NOT

On the PAR-F27MEA-F model, automatic operation mode cannot be selected while the unit is in the narrowed preset temperature range mode Only the lower limit can be set for cooling/dry mode, and upper limit for heating mode.

TIMER SE

N/OFF

HECKTE

mode settin

*

ange limit mode (AO

selection mod

mode displ

Set temperature range limit mode (cool/d

ange limit mode (Heat

[Normal displa

for two

*

Skip A mode select

*

Incl

mode select

butto butto

Room temperature displa selection mod

- 72 -

OST

CK

[Operation Procedures

]

y).

de.

Press button [TIMER SET ( ) or ( )] in this

)

e

.

pressing and holding buttons [CHECK] and [MODE] simultaneously for 2 seconds.

D

UN

OST

D

UN

E

OST

E

OST

E

UN

OST

OR

E

OST

n

.

e.

)

A

F

lights

displa

s

ed.

ude A

ed.

A

ed.

ab

.

A

r

e

)

r

28

)

:

)

o

)

7

1. Press the [ON/OFF] button on the remote controller to bring the unit to a stop. The display will appear as shown in the previous page (Normal displa

under the remote controller function selection mo

Skip

mode setting (when you want to skip

F

or (] bttons are pressed in this state the

witch

[Time selection ( or (] btto

Skip

mode select

When

Incl

mode select

mode can be selected using the mode selection btton

utton and automatic opertion is not possibl

utton, A mode is skipped.

ENTRALLY CONTROLLE

DEFR

TEST R

ENTRALLY CONTROLLE

TAND BY

DEFR

NOT AVAILABL

TEST R

Room temperature display selection mode (Display or non-display of room temperature

INSID

TAND BY

DEFR

TAND BY

DEFR

INSID

HECK MOD TEST R

Narrowed preset temperature range mode (The range of preset temperature can be changed.

1)Temperature range setting for the cooling/dry mod

i

TAND BY

DEFR

HE

TAND BY

DEFR

range for the heating operation

il

mode temper

Lower limit tempe

[Upper limit temperature adjustment range]

*

Mid temper

ture indoor units ha a loer limit temperature of 1

Medium temperature range indoor unit

ENSA INSID

Medium temperature range indoor unit

mode opertion

ange fr

ture

tur

and []

.

(*2

(Can be adjusted as l

er limit temperture.

- 73 -

]

OSS

>

.

g

.

The registered indoor unit address and IC, and the interlocked LOSSNAY address and LC will appear alternately.

r

.

searc

.

[3] Interlocking Setting via the MA Remote Controller

1. Lossnay interlocking setting (Make this setting only when necessary)

Make this setting only when necessary

*When an upper controller is connected, make the settings on the upper controller

NOTE : To perform an interlocked operation with LOSSNAY units, interlock all the indoor units in the group with the LOSSNAY units

Perform this operation to enter the interlock setting between the LOSSNAY and the indoor units to which the remote controller is connected, or to search and delete re

In the following example, the address of the indoor unit is 05 and the address of the LOSSNAY unit is 30

[Operation Procedures

istered information

<Indoor unit address and indoor unit> <L

articular LOSSNAY unit

Go to step. Deletion Procedures to delete any LOSSNAY settings

- Registration erro

NAY address and L

NAY

2. Search Procedures to

h for a

Registration cannot be completed: Another LOSSNAY has already been interlocked with the selected indoor unit

- 74 -

door u

address>

< 2. Search Procedures

>

The indoor unit address and IC, and the interlocked LOSSNAY address and LC will appear alternately.

a

.

If the deletion fails

<In

Take the following steps to delete the interlock setting between a LOSSNAY unit and the interlocked indoor unit from the remote controller

t is connected to the indoor unit

th

nit

2. Search Procedures. ), and bring up the result of the search for both the

- 75 -

2. Remote controller function selection via the MA remote controller

1

)

2

b

[4]-1

gy

de

gy

n

pped)

n

ock

b

.

b

.Press

e

.

ess

e

b

.

b

tton.

b

.

)

b

.

ess

e

b

.

ess

e

b

.

ess

e

btton.

b

.

ess

e

b

.

E

.

CK

R

ST

F

y

guage.

h

n

.

]

[1] Stop the air conditioner to start the remote controller function selection mode. [2] Select from category 1. [3] Select from category 2.

[4] Make the setting. [5] Setting completed [6] Go back to the normal display (Finish)

n

ck

n

)

yg

)

.

t

e

)

b

g

.

n

e

.

r

ode

)

p

y.

)

g

.

)

/SUB

)

g (

)

1) Remote controller functio The settings for the following remote controller functions can be changed in the remote controller function selection mode Change the settings as necessary

Mitsubishi HWE05030 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual