Mitsubishi Electric PURY-P200, PURY-P400YGM-A, PURY-P450, PURY-P500, PURY-P550 Service Manual

Models PURY-P200, P250, P300, P350, P400YGM-A

PURY-P450, P500, P550, P600, P650YGM-A

Service Handbook

AIR CONDITIONERS CITY MULTI

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 ............................................ 21

[4] Restrictions on Refrigerant Piping Length.............................. 37

3 Components of the Outdoor Unit ................................................ 44

[1] Appearance of the Components and Refrigerant Circuit........ 44

[2] Control Box ............................................................................ 50

[3] Circuit Board .......................................................................... 52

[4] BC controller (inside the panel) .............................................. 57

[5] BC control box ........................................................................ 60

[6] BC controller board ................................................................ 60

4 Remote Controller........................................................................ 62

[1]

Functions and Specifications of MA and ME Remote Controllers

.... 62

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

an ME Remote Controller...................................................... 63

[3]

Interlocking Setting that is Made on the MA Remote Controller

...... 66

[4] Switching to the built-in Thermo on the remote controller...... 67

5 Electrical Wiring Diagram ............................................................ 68

[1] PURY-P200, P250, P300, P350, P400YGM-A ...................... 68

[2] PURY-P450, P500, P550, P600, P650YGM-A ...................... 69

[3] CMB-P104V-G ........................................................................ 70

[4] CMB-P105, 106V-G ................................................................ 71

[5] CMB-P108, 1010V-G .............................................................. 72

[6] CMB-P1013, 1016V-G ............................................................ 73

[7] CMB-P104V-GB ...................................................................... 74

[8] CMB-P108V-GB ...................................................................... 75

[9] CMB-P108, 1010V-GA............................................................ 76

[10] CMB-P1013, 1016V-GA.......................................................... 77

6 Refrigerant Circuit ........................................................................ 78

[1] Refrigerant Circuit Diagram .................................................... 78

[2] Functions of Principal Parts.................................................... 82

[3] BC controller .......................................................................... 84

7 Control.......................................................................................... 86

[1] Dip Switch Functions and Their Factory Settings .................. 86

[2] Controlling the Outdoor Unit .................................................. 91

[3] Operation Flow Chart ............................................................ 102

8 Test Run ...................................................................................... 108

[1] Check Items before Test Run.................................................. 108

[2] Test Run Method .................................................................... 108

[3] Operating Characteristics and Refrigerant Amount................ 109

[4] Adjustment and Judgment of Refrigerant Amount ................ 109

[5] Refrigerant Volume Adjustment Mode Operation .................. 111

[6] Symptoms that do not Signify Problems ................................ 113

[7]

Standard Operation Data (Reference Data)

.............................. 114

9 Troubleshooting ............................................................................ 122

[1] Check Code List .................................................................... 122

[2] Responding to Error Display on the Remote Controller ........ 125

[3] Investigation of Transmission Wave Shape/Noise .................. 159

[4] Troubleshooting of Principal Parts .......................................... 162

[5] Refrigerant Leak .................................................................... 189

[6]

Compressor Replacement Instructions (only P450-P650 types)

.... 191

[7]

Collecting the Cooling Liquid from the Accumulator (Only P450-P650 types)

.. 192

[8] BC controller service instruction ............................................ 193

0 LED display.................................................................................. 196

[1] LED Monitor Display .............................................................. 196

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.

Do not touch the fins on the heat exchanger with bare hands: they are sharp and dangerous.

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

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.

- 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. If the refrigerant circuit is opened (to repair a gas leak etc.), the dryer needs to be replaced.

Only use the dryer designed specifically for Citi Multi YGM-A. The use of other dryers may result in malfunctions. ✻ Replace the dryer after completing all the repairs on the refrigerant circuit.

(If left exposed to air, the dryer will absorb moisture. Replace the dryer as quickly as possible after removing the old one.)

✻ When all of the following conditions are met, the replacement of drier is not necessary.

(1) Do not leave the refrigerant circuit longer than 2 hours. (2) Cover the opening end with a cap or tape to keep moisture from entering. (3) Also cover the opening end of the new part with a cap or tape (4) Do not perform the task in the rain. (5) Evacuate the refrigerant circuit as specified.

6. 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.

7. 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 wellmaintained 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 outdoor unit. ➃ Give some allowance to wiring for electrical part box of indoor and outdoor units, because the box is sometimes removed

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.

Outdoor

unit

Indoor unit

Remote

BC controller

controller

2-core cable

Outdoor

unit

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

More than 1.25mm

2

Shielding wire (2-core) CVVS or CPEVS

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 : 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 Symbol

Address

Setting method

setting range

Indoor unit Main/sub units IC

Lossnay LC

M-NET remote controller

Main remote controller RC

Sub remote controller RC

MA remote controller MA

Outdoor unit OC

System controller

Group remote controller GR, SC

System remote controller SR, SC

ON/OFF remote controller AN, SC

ST, SCSchedule timer (for M-NET)

Centralized controller TR, SC

(Note 5)

LM adapter SC

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 outdoor unit and outdoor auxiliary unit address to “100,” make it “50.”

4. When an address in a system overlapped with the outdoor unit or BC controller (Main) address of other refrigerant system, choose an another address within theset 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 thelowest 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 theaddress “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 thegroup will be identical.

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

Hex. unit

BC controller (Sub)

OS

BC

BS

Use the address that equals the sum of the address of the outdoor 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 tobe 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

- 20 -

System Configuration

Single refrigerant system

___

_

Multiple refrigerant system

Connection with the system controller

Power supply unit for the transmission lines

Unnecessary

Unnecessary (Note2) (Supplied from the outdoor unit)

Applicable

Grouping operation of different refrigerant systems

n/a

applicable

applicable // n/a

The setting of the power supply selecting connector

Use CN41 as is (Factory setting)

Replace the CN41 with CN40 on only one of the outdoor units.

✻

Connect the S terminal of the TB7 (terminal block on the outdoor unit) on the outdoor unit whose

CN41 was replaced with CN40 to the earth terminal of the electric box.

Use CN41 as is (Factory setting)

n/a

Connected with the indoor units

Connected with the centralized system

Notes:

1. Will limit the total connectable units in the refrigerant system.

2. The need for a power supply unit for the transmission lines depends on the system configuration. Refer to “ DATA BOOK ” for more details.

Setting the power supply selecting connector for the outdoor unit (Factory setting: CN41 is connected.)(2)

System configuration Setting of the centralized controller switch (SW 2-1)

Connection system with the system controller n/a Leave it to OFF. (Factory setting)

Connection system with the system controller applicable (Note 1) ON

Note:

1. When connecting only the LM adapter, leave SW2-1 to OFF.

Note:

1.

Refer to section “ 7 [2] 13. Demand control ” for detailed information on demand control settings.

Setting the centralized control switch on the outdoor unit (factory setting: SW2-1 OFF )(3)

Category

Output

Input

Usage

Cooling operation is disabled (thermo OFF) by the external input to the outdoor units.

✻ Can be used as an on-demand control for each refrigerant

system.

Quiet operation of outdoor units is run with an external input to the outdoor units. (Night mode can be run under the following conditions: Outdoor air temperature below 30

˚C when running a cooling operation

and above 3˚C when running a heating operation.)

Forces the outdoor units to run a fan operation by receiving the snow signal from the snow sensor. The operation mode can be switched between cooling and heating with an external input to the outdoor units.

Outdoor units’ signal output

✻ Can be used as a device that displays the operation status ✻ Can run an interlocking control operation with external devices

Function

Demand (level)

Night mode or Demand (Level) ✻

Note1

Snow sensor Signal input (level)

You can switch the operation mode between cooling and heating by input from the outside to the outdoor unit.

Auto-changeover

Compressor in operation

Abnormal operation status

CN3S

CN3N

CN3D

CN51

Terminal to be used

Various types of control using the connectors on the outdoor unit for input-output signal (various types of connections with optional parts)

(4)

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

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

Note 1. For the connection to the terminal block of compact

remote controller, employ wire with a diameter of 0.75 ~ 1.25mm

2

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.

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 system.

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

- 21 -

[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

Hex. unit

BC controller

t MA Not required –

Main

controller

Sub unit MA Sub unit

4 Outdoor unit OC

–

5

Auxiliary units

OS

BC

• Refer to 1. (2) 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 unit (OC), M1 and M2 terminals of the indoor-outdoor transmission terminal block (TB3) on the heat exchanger unit (OS), 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)

- 22 -

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.

Interlocking with ventilation

– Example to use shielded wire –

Group

LC

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

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

- 23 -

1. System using MA remote controller

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

- 24 -

1 Indoor unit

2 LOSSNAY

3

MA remote controlle

4 Outdoor unit

r

Main unit

Sub unit

Main unit

BC Controller (sub)

Hex. unit

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

OS

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 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 the heat exchanger unit or main BC controller overlaps with the address of the outdoor 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.

- 25 -

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 unit (1.25mm

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 units.

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

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

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

Interlocking with ventilation

– Example to use shielded wire –

Group

LC

≤

NO

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

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

51

55

53

54

52

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

- 26 -

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 unit (OC), M1 and M2 terminals of the indoor-outdoor transmission terminal block (TB3) on the heat exchanger unit (OS), 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 unit

r

Main unit

Sub unit

Main uni

t

BC Controller (sub)

Hex. unit

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

OS

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 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 the heat exchanger unit or main BC controller overlaps with the address of the outdoor 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.

- 27 -

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

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 unit (1.25mm2 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 units.

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

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 unit should be done only on one outdoor unit.

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

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

NO

TB02TB7 TB3

Note 1

CN41→CN40 Replace SW2-1 OFF→ON

51

53

54

55

52

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

- 28 -

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 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 unit

r

Main unit

Sub unit

Main uni

t

BC Controller (sub)

Hex. unit

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

OS

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 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 the heat exchanger unit or main BC controller overlaps with the address of the outdoor 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 units.

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

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

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

≤

- 29 -

1. System using MA remote controller

(5)

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

1 Indoor unit

2 LOSSNAY

3

MA remote controller

Outdoor 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 the heat exchanger unit or main BC controller overlaps with the address of the outdoor 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 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 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 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.

- 30 -

- 31 -

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

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 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 units.

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

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

NO

OC

TB3

TB7

51

✻1 BC

TB02

55

OC

TB3

TB7

53

✻1 BC

TB02

54

TB02

52

✻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

M1M2M1 M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2

S

M1M2M1 M2

1. System using MA remote controller

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

- 32 -

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 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 unit (OC), M1 and M2 terminals of the indoor-outdoor transmission terminal block (TB3) on the heat exchanger unit (OS), 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 unit

r

Main unit

Sub unit

Main uni

t

BC Controller (sub)

Hex. unit

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

OS

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 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 the heat ex-

changer unit or main BC controller overlaps with the address of the outdoor 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.

- 33 -

IC

TB5 TB

15

12

01

101

103

102

IC

TB5 TB

15

12

02

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 system.

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 units.

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

5. Ground the S terminal of TB7 on only one of the outdoor 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).

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

55

OC

TB3

TB7

53

✻1 BC

TB02

54

TB02

52

✻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

- 34 -

BC Controller (sub)

Hex. unit

BC Controller (main)

52 ~ 100

5

Auxiliary units

BS

OS

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 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 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 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)

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

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

• 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 the heat exchanger unit or main BC controller overlaps with the address of the outdoor 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.

- 35 -

IC

TB5 TB

15

12

01

IC

TB5 TB

15

12

02

IC

TB5 TB

15

12

04

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.

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 unit should be done only on one outdoor unit. Grounding work is required for S-terminal of the centralized control transmission block (TB7) on one outdoor 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 units.

OC

TB3

TB7

51

✻2 BC

TB02

55

OC

TB3

TB7

53

✻2 BC

TB02

54

TB02

52

✻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

- 36 -

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 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 the heat exchanger unit or main BC controller overlaps with the address of the outdoor 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 unit address +1

Hex. unit OS

• Set the lowest address within asame 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 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)

• 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 a system with R2.

• 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,]

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

- 37 -

For the piping connection, the end branching system is applied where the end of refrigerant piping from the outdoor unit is branched and connected to each indoor unit. As the piping connection method, the indoor unit is applied with flare connection, outdoor 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

- 38 -

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

0 5 10 15

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)]

Outdoor unit

BC controller

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 outdoor 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 outdoor unit - BC controller

Height difference

Between BC controller and indoor unit

Between indoor unit and BC controller

Between indoor units

Between indoor unit and outdoor unit

Outdoor unit above

Outdoor 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

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

0 5 10 15

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 outdoor 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 outdoor unit - BC controller

Height difference

Between BC controller and indoor unit

Between indoor unit and BC controller

Between indoor units

Between indoor unit and outdoor unit

Outdoor unit above

Outdoor 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

Outdoor unit

- 39 -

Note 1: Outdoor 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 outdoor 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)

Item

Refrigerant piping size

High pressure pipe

Low pressure pipe

High pressure pipe

Low pressure pipe

Outdoor unit

PURY-P400

YGM-A

ø 28.58 (Brazed)ø 25.4 (Brazed)ø 22.2 (Brazed)ø 19.05 (Brazed)

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

ø 28.58ø 25.4ø 22.2ø 19.05

ø 22.2ø 19.05ø 15.88

PURY-P350

YGM-A

PURY-P300

YGM-A

PURY-P250

YGM-A

PURY-P200

YGM-A

End connection of outdoor 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

Item

Refrigerant piping size

High pressure pipe

Low pressure pipe

High pressure pipe

Low pressure pipe

Outdoor unit

PURY-P650

YGM-A

ø 28.58 (Brazed)

ø 25.4 (Brazed)ø 22.2 (Brazed)

ø 28.58

ø 25.4ø 22.2

PURY-P600

YGM-A

PURY-P550

YGM-A

PURY-P500

YGM-A

PURY-P450

YGM-A

End connection of outdoor unit and BC controller

- 40 -

2. Refrigerant piping size

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-P350 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 outdoor 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

Outdoor 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 28.58

(Brazed)

ø 9.52

(Flare)

ø 15.88

(Flare)

✻ BC controllers (standard model) can only be connected to P200-P350

outdoor units.

PURY-P200YGM-A

PURY-P250YGM-A PURY-P300YGM-A

PURY-P350YGM-A

70

234

Indoor unitIndoor unitIndoor unitIndoor unitIndoor unit Indoor unit

P50 type

or below

P63-P140

types

P200-P250

types

BA

- 41 -

3. Connecting the BC controllers

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 outdoor 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 28.58

(Brazed)

ø 9.52

(Flare)

ø 15.88

(Flare)

PURY-P250YGM-A

PURY-P200YGM-A

PURY-P300YGM-A

PURY-P350YGM-A

PURY-P450YGM-A

PURY-P400YGM-A

PURY-P500YGM-A

PURY-P550YGM-A

PURY-P600YGM-A

PURY-P650YGM-A

Outdoor unit side

Indoor unit side

Indoor unitIndoor unitIndoor unitIndoor unitIndoor unit Indoor unit

P50 type

or below

P63-P140

types

P200-P250

types

BA

- 42 -

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

- 43 -

- 44 -

££

Components of the Outdoor Unit

[1] Appearance of the Components and Refrigerant Circuit

< P200, P250, P300, P350-Types >

[ Front view of the unit ]

[ Rear view of the unit ]

Heat exchanger

Fan guard

Heat exchanger

Fan guard

- 45 -

Drier

Accumulator

Ball valve on high-pressure side

Inverter compressor

Ball valve on low-pressure side

Check valve

block

4-way valve

Discharge

muffler

Pressure switch

High-pressure

pressure sensor

High-pressure check joint

Accumulator

Solenoid valve block

Low-pressure sensor

4-way valve

< P200, P250, P300, P350-Types >

[ Front view of the refrigerant circuit ]

[ Rear view of the refrigerant circuit ]

- 46 -

Heat exchanger

Fan guard

Heat exchanger

Fan guard

< P400-type >

[ Front view of the unit ]

[ Rear view of the unit ]

- 47 -

Drier

Accumulator

Ball valve on high-pressure side

Inverter compressor

Ball valve on

low-pressure side

Discharge muffler

Pressure switch

High-pressure

pressure sensor

High-pressure check joint

Check joint on low-pressure side

Low-pressure sensor

Low-pressure sensor4-way valve

Accumulator

Oil separator Low-pressure sensor Solenoid valve block

< P400-type >

[ Front view of the refrigerant circuit ]

[ Rear view of the refrigerant circuit ]

- 48 -

Fan guard

Heat exchanger

Fan guard

Heat exchanger

< P450, P500, P550, P600, P650-Types >

[ Front view of the unit ]

[ Rear view of the unit ]

- 49 -

Accumulator

Inverter compressor (No.1) Oil balancer tube Commercial power supply

compressor (No.2)

Oil separator (No.1) Oil separator (No.2)

Pressure switch

Drier

Ball valve on low-pressure side

Ball valve on high-pressure side

4-way valve (21S4b)

4-way valve (21S4a)

High-pressure pressure sensor

High-pressure check joint

Low-pressure check joint

Check valve block 1

Solenoid valve block 2

Check valve block 2

Solenoid valve block 1

Low-pressure pressure sensor

< P450, P500, P550, P600, P650-Types >

[ Front view of the refrigerant circuit ]

[ Rear view of the refrigerant circuit ]

- 50 -

Power supply terminal block (TB1)

Main board

Transmission line terminal block for centralized control (TB7)

Indoor/outdoor transmission terminal block (TB3)

INV board

Choke coil (L1, L2)

Transformer

DCL (back)

Noise filter

Rush current protection resistor (R11, R12)

Electromagnetic relay (52C1)

Smoothing capacitor (C11, C12)

DCCT (P250-P400 types only)

Gate amp board (G/A board)

Diode stack (DS1)

FAN board

ACCT-U phase ACCT-W phase

[2] Control Box

< P200~P400-Type >

[ Appearance ]

[ Under the circuit board cover ]

- 51 -

Power supply terminal block (TB1)

Transmission line terminal block for centralized control (TB7)

Indoor/outdoor transmission terminal block (TB3)

FILTER board

Relay board (RELAY BOARD)

Relay board (RELAY02-BOARD)

Main board

INV board

Choke coil (L1, L2)

Transformer

DCL (back)

Gate amp board

(G/A board)

FAN board

Diode stack

(DS)

Smoothing capacitor (C11, C12)

Rush current protection resistor (R11, R12)

Electromagnetic contactor (52C1)

Noise filter

Electromagnetic

contactor (52F)

Fuse

AC660V 50A

Electromagnetic

contactor (52C2)

Overcurrent

relay (51C2)

< P450~P650-Type >

[ Appearance ]

[ Under the circuit board cover ]

- 52 -

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 intput

5

L1

CN21 Power intput

3

L2

1

N

LD1 Service LED

SW5 SW4 SW3 SW2

SWU2 SWU1

SW1

CNLVB

CN3S

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

- 53 -

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 Source

5

L2

3

N

1

G

CNTH

CNCT

CNDR2

2. INV board

- 54 -

CNVDC DC bus voltage input

1–3

LED1

LED2

SW2

CNTRIPM (back)

CNN Fan motor output Fuse CNRS2

3. FAN board

- 55 -

52C2, 52F, CH12 Power input (AC220

~240V)

51C2 Detection output

CNOUT2 Relay driving input

CNRT2

1–5

1

–

3

CNCH CH12 Power output

1–3

AC220~240V

CN51C2 51C2 contact input

CN52F 52F driving output

1–3

AC220~240V

CN52C2 52C2 drivingoutput

1–5

AC220~240V

CN01 CH12 output

3–5

AC220~240V

CNAC1 CH12 power input

1–3

AC220~240V

CNIN relay driving input

CNX10

4. Relay board (RELAY BOARD)

5. Relay board (RELAY02-BOARD)

- 56 -

CNFG CNL2CNL1

CNOUT Controlled source output

CNIN Controlled source input

6. Filter board

CNDR1

CN15V1

CNDC1 CNDC2

CNIPM1

7. G/A board

- 57 -

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 (outdoor 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 >

- 58 -

Gas-liquid separator

Double pipe heat exchanger

Gas-liquid separator

Double pipe heat exchanger

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

< CMB-P1016V-G >

< CMB-P1016V-GA >

- 59 -

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) ]

- 60 -

BC controller board

Relay board

Terminal block

for power supply

Terminal block

for transmission

Transformer

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 ]

- 61 -

[ Relay board (RELAY 4 board) ]

[ Relay board (RELAY 10 board) ]

- 62 -

Function/specification

Remote controller address setting

Not required Required

Indoor/outdoor unit address setting

Not required (applicable only in the case of single refrigerant systems)(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.

- 63 -

(A) Group registration

2

Displaying “GROUP REGISTRATION”.

- Press and hold down the A [FILTER] and B [Louver (

)] buttons at the same time for two seconds. The display shown below appears.

Set the unit address No.

- Press the c [TEMP. (

) and ( )] buttons. The unit address No. decreases and increases. Set it to the indoor unit address No. you want to register.

4

Register the indoor unit address No. you have set.

- Press the D [TEST] button to register the indoor unit address

No. being displayed.

- When registration is completed normally, the unit type is displayed as shown below.

- If the specified indoor unit does not exist, an error message will be displayed. Make sure there are indoor units and repeat the operation above.

5 To register multiple indoor units, repeat steps 3 and 4.

(B) Interlock registration

6

Displaying “INTERLOCK REGISTRATION”

- Press the [Mode selection (

)] button. The

display shown below appears. If the button is pressed again, the display returns to 2 GROUP REGISTRATION .

7

Displaying address No. of LOSSNAY and any indoor unit address No. you want to interlock.

- Press the C [TEMP. (

) and ( )] buttons. INDOOR UNIT ADDRESS NO. decreases and increases. Set it to the indoor unit address No. you want to interlock.

- Press the HG [Time selection (

) and ( )] buttons. INTERLOCKED UNIT ADDRESS NO. decreases and increases. Set it to the LOSSNAY address No. you want to interlock.

8

Register to interlock LOSSNAY with indoor unit.

- Press the D [TEST] button. The display shown below appears,

and the indoor unit being displayed at INDOOR UNIT ADDRESS and the LOSSNAY being displayed at INTERLOCKED UNIT ADDRESS are interlocked.

- The above can also be registered similarly by displaying the LOSSNAY address at INDOOR UNIT ADDRESS and the indoor unit address at INTERLOCKED UNIT ADDRESS .

NOTE:

INDOOR UNIT ADDRESS and INTERLOCKED UNIT ADDRESS

are displayed at the same time

To confirm the addresses, go to (2) Registered address confirmation .

Displays the unit type. (Indoor unit in this case.)

“ ” will flash as a registration error. (If the registered indoor unit does not exist)

If registration is completed normally, the display alternates as shown in the figure at the left. If a registration error occurs,

will flash. (Indicates that the

unit does not exist.)

INDOOR UNIT ADDRESS

INDOOR UNIT

ADDRESS

INTERLOCKED

UNIT ADDRESS

PAR-F27MEA

TIMER SET

ON/OFF

FILTER

CHECK TEST

TEMP.

CLOCK ON OFF

To confirm the addresses, go to (2) Registered address confirmation .

(Alternate display)

This operation should be performed to set a group of indoor units between different refrigerant systems and to manually raise the indoor/outdoor unit addresses.

(A) Group setting ........... To register the indoor units you want to control with the remote

controller, confirm the registered units, or delete registered units.

(B) Interlock setting........ To register the LOSSNAY to be interlocked with indoor units, con-

firm the registered units, or delete registered units.

[ H0 flashing display] [OFF display]

[Setting Procedure]

(1) Address registration

Register the indoor unit address you want to control with the remote controller.

1

Display “H0”, which flashes when the power is on, or OFF using the [ON/OFF] button.

The liquid crystal displays are shown below. If any of these displays is different, the next set cannot be performed.

C G

E

H

B

F A

D

3

“

”

“

”

“

”

“

”

“

””

“

”

“

”

“

”“

”

“

· Interlock all the units in a group with the LOSSNAY. If not interlocked, the LOSSNAY will not operate.

· If an SC is connected, make an interlocking setting with the SC.

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

1. Group setting/interlocking setting

- 64 -

(B) Interlocked registration information confirmation After performing step 6, proceed as follows:

B

C

Display the indoor unit address No. you want to confirm.

- Press the H [Time selection (

) and ( )] buttons. The interlocked unit address decreases and increases. Set it to the indoor unit address No. you want to confirm.

Displaying the LOSSNAY address No. interlocked at step .

- Press the E [Timer selection (

)] button. The interlocked LOSSNAY address No. and indoor unit address No. are alternately displayed.

D Displaying another registered unit address No.

- After step C, press the E [Timer selection (

)] button again. Another registered unit address No. is displayed. (The display method is the same as step C.)

(C)Returning to the normal state When all the group registration and interlock registration operations

are completed, return to the normal state as described below.

Press and hold down the [FILTER] and B [Louver

(

)] buttons at the same time for two seconds. The re-

mote controller returns to the state of 1.

(2) Registered address confirmation

Display the indoor unit address No. registered in the remote controller by performing steps 1 and 2.

Repeat steps 79 and 8 above to interlock all the indoor units in a group with the LOSSNAY.

To return to the normal state, go to step 0.

To confirm the addresses, go to (2) Registered address confirmation .

(A) Group registration information confirmation

A Displaying “GROUP REGISTRATION”

- Each time you press the E [Timer selection (

)] button, the

registered indoor unit address No. and unit type are displayed.

- When there is one registration, one address No. is displayed no matter how many times the button is pressed.

- When there are multiple registrations (ex: 011 , 012 , 013 , the address Nos.) are displayed in 011 012 013 order each time the E [Timer selection (

)] button is pressed.

Indicates the unit type. (Indoor unit in this case.)

The above can also be confirmed similarly by displaying the LOSSNAY address at the interlocked unit address.

Address of unit that is interlocked

To delete an address, go to

(3) Address deletion

”.

To return to the normal state, go to step 0.

(Alternate display)

Address of another registered unit

(Alternate display)

To delete an address, go to

(3) Address deletion .

(3) Address deletion

Group registration information deletion deletes the indoor units registered in the remote controller. Interlocked registration information deletion deletes the interlock between units. Both deletion operations perform the address confirmation processing of (2) and are performed in the state in which the unit you want to delete was displayed.

E

Deleting registered indoor unit or interlock between units.

- Press the F [Time selection(

CLOCK ON OFF

)] button two times in succession. The displayed indoor unit address or the interlock between units is deleted. When the information is deleted, the display shown below appears.

A

”

“

”

“

”

“

→→

”

“

0

→→

”

- 65 -

(A) Deleting group registration information

- If there is a transmission error, registration is not deleted and

the display shown below appears. In this case, repeat the operations above.

When deletion was completed normally,

is displayed at the unit type display. If a deletion error occurred,

is displayed at the unit type display. In this case, repeat the operations described above.

(B) When deleting interlocked registration

is displayed at the room temperature display.

To return to the normal state, go to step 0.

(Alternate display)

(4) (A) Group registration and (B) Interlock registration of another group using an arbitrary remote controller

(A) Group registration and (B) Interlock registration of another group can be performed using an arbitrary remote controller. For a description of the operation procedure, see (B) Interlock registration of section [2] 1. Group setting/interlocking setting. Set the address No. as shown below.

(A) When performing group registration

Interlocked unit address ... Remote controller address No.

Indoor unit address ........... Indoor unit address No. you want to control with the remote controller

(B) When performing interlock registration

Interlocked unit address ... LOSSNAY address No.

Indoor unit address ........... Indoor unit address No. which is interlocked with LOSSNAY

”

“

”

“

”

“

”

“

”

“

2. Remote controller functions selection

In the remote controller function selection mode, three functions can be selected and changed. Select and change these functions, as required. For the operating instructions refer to (6) How to select the remote controller functions of 3 How to Operate in Instruction Book.

(A) Operation mode display selection mode (

AUTO mode heating/cooling display selection) When the AUTO mode was selected with the remote controller, the indoor unit is judged from the room temperature and heating or cooling is performed automatically. In this case, AUTO COOLING or AUTO HEATING is displayed at the remote controller. However, only AUTO without

COOLING or HEATING can also be displayed.

(B) Room temperature display selection mode (

Room temperature display/no display selection)

Normally, the intake air temperature is displayed at the remote controller. However, no display can also be selected.

(C)

Set temperature range limit mode Ordinarily, the set temperature can be freely set over the 19

˚C to 30˚C range for cooling and dry and the 17 ˚C to 28˚C range for heating. However , for cooling and dry, the lower limit temperature and for heating, the upper limit temperature can be limited to a preset temperature. If the set temperature range is made higher for cooling and dry and is set lower for heating by this method, excessive cooling and heating can be prevented and energy can be saved.

CAUTION

When the normal set temperature adjustment range was changed using a remote controller connected to a simultaneous cooling/heating air condition with an AUTO mode, the AUTO mode cannot be selected with the [Mode selection] button.

”

“

””””

“

”

“

“ “ “

”

“

”

“

”

“

”

“

PAR-F27MEA

ON/OFF

FILTER

CHECK TEST

TEMP.

TIMER SET

CLOCK ON OFF

1

2

3

[Remote controller function selection mode transition]

[Remote controller OFF window display]

1

2 3

:Press and hold down the [CHECK] and

[Mode selection] buttons at the same time for 2 seconds

:[TEMP.

( )]

button

:[TEMP.

( )]

button

OFF window

Operation mode display selection mode

Room temperature display selection mode

Set temperature adjustment range limit mode (cool/dry)

Set temperature adjustment range limit mode (heat)

Remote controller function selection modes

23

4

11

→

32

→

32

→

32

→

- 66 -

˚C

LIMIT TEMP.

˚C

LIMIT TEMP.

[Time selection ( ) (( ))] button

[PROCEDURE]

1. Set the air conditioner to the off state with the remote controller [ON/OFF] button. The remote controller display shifts to the OFF window display shown at the left.

2. When the [CHECK] and [Mode selection] buttons 1 are pressed and held down at the same time for two seconds, the remote controller switches to the remote controller function selection mode and the “OPERATION MODE DISPLAY SELECTION MODE” window appears. The other three modes

can be selected by operating the [TEMP.] ( ) button 23 or ( ) button . Display the mode whose function you want to change.

OPERATION MODE DISPLAY SELECTION MODE (When you want to change the AUTO mode display)

•“AUTO” “COOL/HEAT” flashes and “ON” or “OFF” lights. Each time the [Time selection ( ) or ( )] button 4 is pressed in this state, the “ON” and

“OFF” display is switched.

• When “ON” was selected, “AUTO ” “COOL” or “AUTO” “HEAT” is displayed during AUTO mode operation.

• When “OFF” was selected, only “AUTO ” is displayed during AUTO mode operation.

[When set temperature adjustment range in cool/dry mode is 19 °C to 30 °C]

2) Each time the [Time selection (

) or ( )] button 4 is pressed, the lower limit temperature value is increased or decreased. Set it to the desired

set temperature adjustment range.

ROOM TEMPERATURE DISPLAY SELECTION MODE (When you want to change room temperature display/no display)

•“88 °C” flashes at the room temperature display and “ON” or “OFF” lights. Each time the [Time selection ( ) or ( )] button 4 is pressed in this

state, the “ON” and “OFF” display is switched.

• When “ON” was selected, the room temperature is continuously displayed in the ON window.

• When “OFF” was selected, the room temperature is not displayed in the ON window.

SET TEMPERATURE RANGE LIMIT MODE (When you want to change the set temperature adjustment range)

1) Cool/dry mode temperature selection “COOL/DRY” and “LIMIT TEMP.” light on the display and the set temperature adjustment range in the cool (dry) mode is displayed. The lower limit temperature of the set temperature display flashes. This temperature value can be set and changed. [Lower limit temperature adjustment range]: 19 °C

30 °C (Upper limit temperature 30°C is fixed. Only the lower limit temperature

can be changed.)

[When set temperature adjustment range was set to 24 °C to 30 °C]

3) When the [TEMP. (

)] button 2 is pressed after the setting above, the remote controller switches to the heat mode temperature selection window. “HEAT” and “LIMIT TEMP.” light on the display and the heat mode set temperature adjustment range is displayed. The upper limit temperature value can be changed by pressing the [Time selection (

) or ( )] button 4, the same as cool/dry mode temperature

selection. Upper limit temperature adjustment range: 17 °C to 28 °C (The lower limit temperature 17°C is fixed. Only the upper limit temperature can be changed.)

3. At the end of selection of each function, release the remote controller function selection mode and display the OFF window by pressing the [CHECK] and [Mode selection] buttons 1 at the same time for two seconds.

Perform this operation when you want to register the LOSSNAY, confirm the registered units, or delete the registered units controlled by the remote controller. The following uses indoor unit address 05 and LOSSNAY address 30 as an example to describe the setting procedure.

[Setting Procedure] 1 Stop the air conditioner using the remote controller A [ON/OFF] button.

If the OFF display shown below does not appear at this time, step 2 cannot be performed.

2 Press and hold down the [FILTER] and cB [Louver] buttons at the same time for two

seconds. The display shown below appears. The remote controller confirms the registered LOSSNAY addresses of the currently connected indoor units.

Make this setting only when interlocked operation with LOSSNAY is necessary with CITY MULTI models.) (This setting cannot be made with Mr. SLIM air conditioners.)

FUNCTION

TIMER SET

PAR-20MAA

D

G

E

H

ON/OFF

FILTER

CHECK TEST

TEMP.

FUNCTION

CF

A

B

[3] Interlocking Setting that is Made on the MA Remote Controller

Lossnay interlocking setting

- 67 -

3 Registration confirmation result

- The indoor unit address and registered LOSSNAY address are displayed alternately.

- When LOSSNAY are not registered

4 If registration is unnecessary, end registration by pressing and holding down the B [FILTER] and c [Louver] buttons at the same time for two

seconds. If a new LOSSNAY must be registered, go to step 1. Registration procedure. If you want to confirm another LOSSNAY, go to step 2. Confirmation

procedure. To delete a registered LOSSNAY, go to step 3. Deletion procedure.

< 1. Registration procedure >

Set the address of the LOSSNAY and the indoor unit connected by the remote controller you want to register using the D [TEMP. (

) and ( )]

buttons. (01 to 50) Set the address of the LOSSNAY you want to register using the E [TIMER SET (

) and ( )] buttons. (01 to 50)

Press the F [TEST] button, and register the set indoor unit address and LOSSNAY address.

- Registration end display The indoor unit address and “IC” and LOSSNAY address and “LC” are alternately displayed.

- Registration error display

If the address was not correctly registered, the indoor unit address and registered LOSSNAY address are alternately displayed.

Cannot be registered because the registered indoor unit or LOSSNAY does not exist. Cannot be registered because another LOSSNAY was registered at the registered indoor unit.

< 2. Confirmation procedure >

Set the address of the indoor unit connected by the remote controller whose LOSSNAY you want to confirm using the D [TEMP.]

( ) and ( )

buttons. (01 to 50)

Press the G [Timer selection] button and confirm the LOSSNAY address registered at the set indoor unit address.

- Confirmation end display (When LOSSNAY is connected.) The indoor unit address and “IC” and registered LOSSNAY address and “LC” are alternately displayed.

FUNCTION

FUNCTION

Indoor unit address LOSSNAY address

FUNCTION

FUNCTION

- Confirmation end display (When LOSSNAY is not connected.) Registered indoor unit address does not exist.

FUNCTION

FUNCTION FUNCTION

< 3. Deletion procedure >

Use this procedure when you want to delete registration of indoor units connected by the remote controller and LOSSNAY.

0 Confirm (see 2. Confirmation procedure) the LOSSNAY you want to delete and display the indoor units and LOSSNAY confirmation results.

A Press the H [TIMER SET] button twice and delete registration of the LOSSNAY registered at the set indoor unit.

- Deletion end display Indoor unit address and “– –” and registered LOSSNAY address and “– –” are alternately displayed.

- Deletion error display When deletion was not performed properly.

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

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

To use the built-in sensor in the remote controller, set the SW1-1 on the indoor unit to ON. ✻ Some remote controllers are not equipped with a built-in sensor. Use the built-in sensor on the indoor unit

instead.

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

ture can be detected.

- 68 -

∞∞

Electrical Wiring Diagram

[1] PURY-P200, P250, P300, P350, P400YGM-A

DC Current Sensor

DC reactor (Power factor improvement)

Magnetic contactor (Inverter main circuit)

Crank case heater (Compressor)

Solenoid valve

(Discharge-suction bypass)

Thermistor

Discharge pipe temp. detect

Pipe temp.detect (Hex outlet)

OA temp.detect

liquid outlet temp.detect

at Sub-cool coil

Radiator panel temp. detect

High pressure switch

High pressure sensor

Low pressure sensor

Choke coil (Transmission)

Function device

Earth terminal

Z20

L1, L2

63LS

63HS

63H1

THHS1

TH7

TH6

TH5

TH11

Solenoid valve

(Heat exchanger capacity control)

SV4a~d

SV1, 2

4-way valve

21S4a

CH11

Fan motor (Radiator panel)

MF1

52C1

DCL1

DCCT1 ✻3

ACCT1

AC Current Sensor

Symbol Name

< Symbol explanation >

All exists

PURY-P250, 300,

350, 400YGM-A

PURY-P200YGM-A

“ ✻3 ” do not exist

Model name Appliance

< Defference of appliance >

NOTE:The broken lines indicate field wiring.

Compressor

ON/OFF

SHORTOPEN

OPEN

SHORT

CN3D 1-2P

CN3D 1-3P

100%

0%

75%

OPEN

SHORT

OPEN OFF

ON

✻1:

Function according to switch operation.

(SW4-7,CN3D 1-2P, and CN3D 1-3P)

50%

NIGHT

MODE

CN3D

1-2P

OFF

ON

SW4-7:OFF (Compressor ON/OFF

and NIGHT MODE)

CN3D

1-3P

SW4-7:ON (STEP DEMAND)

Breakers for wiring

Breakers for current leakage

PURY-P350YGM-A

PURY-P200,250,300YGM-A

40A

PURY-P400YGM-A 60A

30A

)

1

CN04

2

3

Fan motor

(Heat exchanger)

1

U

V

W

2

3

191

14 14

1

9

1

shield

✻1

or STEP DEMAND

SNOW

Compressor ON/OFF

NIGHT MODE

SV2

SV

4a

SV

4b

(Transformer)

INDOOR/

OUTDOOR

TRANSMISSION

LINE

CENTRAL

CONTROL

TRANSMISSION

LINE

red

black

CNRS3B

✻3

CNINV

CNTR

123

65432

1

Trouble

Compressor ON/OFF

LD1

ON

OFF

SW2

14

123

CNRS3A

T01

CNAC3

SW1

SWU2

SWU3

SWU1

SW2SW3SW4SW5

black

CN3S

red

CNVCC1

CN51

12V

CN3D

321

54321

321

ON ONONOFFOFF ONOFF ONOFF OFF

1

10

1

10

1

10

1

10 10

Unit address setting

CN52C

yellow

SV

4d

CN38

green

CN36

CN35

red

CN33

CN32

CH11

CNS2

blue

CNS1

blue

123

Z20

123

12345

6

123456789

2 1 2 1 3 2 12 1 3 2 1 3 2 18 7 6 5 4 3 2 1

TH6TH5TH7 TH11

63LS

R22

63HS

R23

1 2 3 1 2 3

CN02CNTYP1

red

CNL

black

CN01

CNTYP4

SV1

63H1

21S

4a

CNH

CNTYP5

52

C1

CN20

X01

X03

X04

X05

X06

X07

X08

X09

X11

X52

CN21

blue

F01

250VAC

6.3A T

F02

250VAC

6.3A T

1 2 3 4 5

1 2 3

L1L2L3

NN

L1L2L3

N

E

(Terminal Block)

Power source

3N~

380/400/415V

50/60Hz

black

red

~~~

+

-

C12

C14

red

1 2 3 4

(Diode stack)

white black

432

1

CNDC2

IPM1

MC1

Gate amp board 1

P

N

(G/A BOARD)

Power circuit board 1

FILTER

BOARD

(INV BOARD)

FAN control board

(FAN BOARD)

Control circuit board

(MAIN BOARD)

Motor

(Compressor)

ACCT-W

ACCT-U

ACCT1

CNVDC

1 2 3

C11

R14

R13

R11 R12

(Noise Filter)

TB1

TB3

TB7

ACNF1 DS1

C15

52C1

DCL1

DCCT1

ZNR14

1234567

8

1234567

8

1234567

8

CNFG

blue

1 2

L1L2

1 2

CNL1CNL2

CNOUT

green

CNIN

blue

012

12345

6

CN34

red

SV

4c

CN15V1

CNDC1

UVW

black

CNDR1

123

4

1 2 3 4 5 6 7 8

CNVCC1

1 2 3 4 5

CNAC2

MF1

CNFAN

red

1 4

1 6

ON

OFF

ON

OFF

LED1 operation

LED2 error

LED1 operation

LED2 error

321

CNFG

UVW

blue

1

2

CNCT2

blue

432

1

123

4

CNTH

green

THHS1

1 2 3 4 5 6 7

1 2 3 4

1 2

CNCT

SW1 SW2

X01

CNRS1

CNDC2

black

CN15V2

CNDR2

M1M2M2SM1

1 2 3

1 2

shield

F02

700VDC

2A T

black white red

white

detection

circuit

detection

circuit

detection

circuit

red

black

L1L2L3

F01

250VAC

2A T

Refer to the service handbook

about the switch operations.

CNRS2

Inverter controller box

MF

red

white

black

blue

PE

red

white

black

blue

- 69 -

[2] PURY-P450, P500, P550, P600, P650YGM-A

DC Current Sensor

DC reactor (Power factor improvement)

Magnetic contactor (Inverter main circuit)

Magnetic contactor (No.2 Compressor)

Overload relay (No.2 Compressor)

Magnetic contactor (Fan motor)

Crank case heater (Compressor)

Solenoid valve

(Discharge-suction bypass)

Thermistor

Discharge pipe temp. detect

Pipe temp.detect (Hex outlet)

OA temp.detect

liquid outlet temp.detect

at Sub-cool coil

Radiator panel temp. detect

High pressure switch

High pressure sensor

Low pressure sensor

Choke coil (Transmission)

Function device

Earth terminal

Z20

L1, L2

63LS

63HS

63H1, 2

THHS1

TH7

TH6

TH5

TH11,12

Solenoid valve

(Heat exchanger capacity control)

SV5a, b

SV4a~d

SV1, 2, 3

4-way valve

21S4a, b

CH11,12

Fan motor (Radiator panel)

MF3

52F

51C2

52C2

52C1

DCL1

DCCT1

ACCT1

AC Current Sensor

Symbol Name

< Symbol explanation >

NOTE:The broken lines indicate field wiring.

Compressor

ON/OFF

SHORTOPEN

OPEN

SHORT

CN3D 1-2P

CN3D 1-3P

100%

0%

75%

OPEN

SHORT

OPEN OFF

ON

✻1:

Function according to switch operation.

(SW4-7,CN3D 1-2P, and CN3D 1-3P)

50%

NIGHT

MODE

CN3D

1-2P

OFF

ON

SW4-7:OFF (Compressor ON/OFF

and NIGHT MODE)

CN3D

1-3P

SW4-7:ON (STEP DEMAND)

Breakers for wiring

Breakers for current leakage

PURY-P550,600,650YGM-A

CENTRAL

CONTROL

TRANSMISSION

LINE

INDOOR/

OUTDOOR

TRANSMISSION

LINE

PURY-P450,500YGM-A

75A

60A

Power source

3N~

380/400/415V

50/60Hz

)

123

4

Fan motor

(Heat exchanger)

123

Fan motor

(Heat exchanger)

Motor

(Compressor)

123

119

1414

1

9

1

shield

SNOW

✻1

or STEP DEMAND

Compressor ON/OFF

NIGHT MODE

12312

3

CNTR

321

(Transformer)

54321

12345

6

12345

CNRT1

red

CNOUT1

yellow

CNOUT2

12V

green

SV3

SV

5b

321

CNAC3

black

SV

5a

5 4 3 2 1

13 14

95 96

52

C2

A2 A1

CNRT2

12345

CNOUT2

A2 A1

52F

123

4

CN51C2

51C2

52C2

CH12

CN05

MF2

MF1

CN04

UVW

52F

CN52C2

blue

CN52F

yellow

CNCH

blue

123

black

white

red

(Compressor)

Motor

(G/A BOARD)

Gate amp board 1

MC2

F12

AC660V

50A F

F11

AC660V

50A F

SV

4a

CN13

TH12

4 3 2 1

black

CNAC1

black

CNAC2

321

1 2 3 4 5 6

CNIN

blue

CN02

black

CN03 X4 X3 X2

X2

X1

X3

1 2 3 4 5 61 2 3 4 5 6

1234567

CNRS3B

CNINV

65432

1

Trouble

Compressor ON/OFF

ON

OFF

1234567

CNRS3A

1234567

8

CN3S

red

CNVCC1

CN51

CN3D

321

54321

321

ON ONONOFFOFF

SWU3

SW1SW2SW3SW4SW5

SWU2 SWU1

ONOFF ONOFF OFF

1

10

1

10

1

10

1

10 10

Unit address setting

✻1

CN52C

63H1

63H2

yellow

SV

4d

CN38

green

CN36

CN35

red

CN33

CN32

CNS2

blue

CNS1

blue

123

Z20

123

12345

6

123456789

2 1 2 1 3 2 12 1 3 2 1 3 2 18 7 6 5 4 3 2 1

TH6TH5TH7 TH11

63LS

R22

63HS

R23

1 2 3 1 2 3

CN02CNTYP1

red

CNL

black

CN01

CNTYP4

SV1

SV2

21S

4a

21S

4b

CNH

LD1

CNTYP5

52

C1

CN20

X01

X02

X03

X04

X05

X06

X07

X08

X09

X52

CN21

TB7

TB3

blue

F01

250VAC

6.3A T

F02

250VAC

6.3A T

1 2 3 4 5

1 2 3

(Terminal Block)

black

red

C12

red

1 2 3 4

(Diode stack)

white black

432

1

CNDC2

IPM1

UVM

MC1

ACCT-W

ACCT-U

ACCT1

CNVDC

SW2

14

1 2 3

C11

R14

R13

R11 R12

(Noise Filter)

1234567

8

1234567

8

CNFG

blue

1 2 1 2

L1L2

1 2

CNL1CNL2

CNOUT

green

CNIN

blue

012

12345

6

CN34

CH11

red

SV

4c

CN15V1

CNDC1

black

CNDR1

123

4

SV

4b

1 2 3 4 5 6 7 8

CNVCC1

1 2 3 45

CNAC2

MF3

CNFAN

red

1 4

1 6

ON

OFF

ON

OFF

321

CNFG

blue

1

2

CNCT2

blue

432

1

123

4

CNTH

X01

green

THHS1

1 2 3 4 5 6 7

1 2 3 4

1 2

CNCT

CNRS1

CNDC2

black

CN15V2

CNDR2

SW1 SW2

M1M2M2SM1

1 2 3 1 2

shield

F02

700VDC

2A T

black white red

red

white

black

detection

circuit

detection

circuit

detection

circuit

red

black

L1NL2

L3

L1NL2

L3

L1

~

+

-

~

N

E

L2

L3

red

TB1 ACNF1

DS1

ZNR14 C15

52C1

C14

P

N

DCL1

DCCT1

blue

white

black

red

blue

51C2

52C2

WU

V

white

black

F01

250VAC

2A T

Refer to the service handbook

about the switch operations.

CNRS2

1234567

Inverter controller box

T01

Power circuit board 1

(INV BOARD)

LED1 operation

LED2 error

LED1 operation

LED2 error

FILTER

BOARD

(FAN BOARD)

RELAY - BOARD2

RELAY - BOARD1

FAN control board

(MAIN BOARD)

Control circuit board

PE

- 70 -

[3] CMB-P104V-G

CONT.B

Pressure sensor

TR

TH11,12,15,16

LEV1,3

PS1,3

Symbol Name

Transformer

Thermister sensor

Expansion valve

SV1

~4A,B,C Solenoid valve

TB01

Terminal block

(for power source)

TB02

Terminal block

(for Transmission)

T1

~4 Terminal

F01

Fuse AC250V 6.3A F

Solenoid valveSVM1

TR

TB02

CN26

3

1

CN12

1

53

CN05

6 54

3 2

1

CONT.B

1

2

CN02

3

CNP1

123

CNP3

211234567

8

4

3

2

1

12321

CN03

CN13

CN10

CN11

CN07

TH11

TH12

TH15

TH16

PS1

PS3

6 54

3 2

1

TB01

LEV3 LEV1

S(SHIELD)

M2

M1

220V

~240V20V~22V

L

123

4

10

9

8

423

10

214

3

SV3A

SV3B

SV2B

SV3C

SV2C

SV2A

243

756

4

3

2

123

4

1

234

9

8

7

6

5

SV1C

SV1A

SV1B

7

5

3

1

7

5

3

1

7

5

3

1

X2

X1

X30

X4

X3

X31

X6

X5

X32

CN27(Red)

CN28(Blue)

1

234

13

12

11

16

15

14

13

12

11

SV4B

SV4C

SV4A

151614

1

234

1

7

5

3

1

X8

X7

X33

CN29(Green)

SVM1

123

1

2

3

1

3

CN36(Green)

X21

N

ZNR01

ZNR02

CNTR

(Red)

2

PE

3

1

3

1

T2

T3

T1

T4

PE

TO NEXT INDOOR UNIT

PULL BOX

FUSE(16A)

BREAKER(16A)

POWER SUPPLY

~220V-240V

50Hz/60Hz

Indoor/outdoor

Transmission Line

ON

OFF

1

SW5

OFF

8

SW4

ON

1

8

BC controller

Circuit

board

SW2 SW1

110

F01

250VAC

6.3A F

(Black)

(Red)

(Yellow)

(Red)

(Yellow)

DSA

Note:1.TB02 is transmission terminal block.

Never connect power line to it.

2.The initial set values of switch on

CONT.B are as follows.

SW1:0

SW2:0

Symbol explanation

- 71 -

[4] CMB-P105, 106V-G

Symbol explanation

Fuse AC250V 6.3A F

F01

TerminalT1

~6

TB02

TB01

CONT.B

Circuit

board

BC

controller

Terminal block

(for Transmission)

Solenoid valve

Terminal block

(for power source)

Pressure sensor

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1

~6A,B,C

SVM1

TR

TH11,12,15,16

LEV1,3

PS1,3

Note: 1. TB02 is transmission terminal block.

Never connect power line to it.

2. The initial set values of switch on

CONT.B are as follows.

SW1:0

SW2:0

F01

250VAC

6.3A F

CMB-P106V-G ONLY

10 1

SW1SW2

(Black)

(Red)

(Yellow) (Red)

DSA

(Red)

(Yellow)

8

1

ON

SW4

8

OFF

SW5

1

OFF

ON

T5

T4

T6

T1

T3

T2

1

3

1

322

Indoor/outdoor

Transmission line

PE

50Hz/60Hz

~ 220V-240V

POWER SUPPLY

BREAKER(16A)

FUSE(16A)

PULL BOX

TO NEXT INDOOR UNIT

CN31(Yellow)

CN30(Black)

X35

X11

X12

X34

X9

X10

X33

X7

X8

135

7

135

7

135

1

4

3

2

1

4

3

2

1

4

3

2

1

SV6B

SV6A

SV6C

123

4

123

4

3

4

324

1

2

1

141615

SV4A

SV4C

SV5B

SV4B

SV5C

SV5A

111213

141516

111213

4

3

2

1

X32

X5

X6

X31

X3

X4

X30

X1

X2

135

7

135

7

135

7

SV1B

SV1A

SV1C

567

8

9

4

3

2

4

3

2

1

4

3

2

1

234

657

342

SV2A

SV2C

SV3C

SV2B

SV3B

SV3A

3

4

1

2

10

324

8910

4

3

2

1

20V~22V 220V~240V

LEV1LEV3

TB01

123456

PS3

PS1

TH16

TH15

TH12

TH11

CN11

CN10

CN13

CN03

12321

123

4

8

7

6

5

4

3

2

1

2

CNP3

321

CNP1

3

CN02

2

1

CONT.B

123456

351

CN12

1

CNTR

3

CN26

TR

1

3

2

123

SVM1

3

1

X21

TB02

M2

M1

S(SHIELD)

CN07 CN05

ZNR01

CN27(Red)

CN28(Blue)

CN29(Green)

ZNR02

L

N

CN36(Green)

- 72 -

[5] CMB-P108, 1010V-G

Symbol explanation

Fuse AC250V 6.3A F

F01

TerminalT1

~10

TB02

TB01

REL.B

CONT.B

Circuit

board

Relay

BC controller

Terminal block

(for Transmission)

Solenoid valve

Terminal block

(for power source)

Pressure sensor

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1

~10A,B,C

SVM1

TR

TH11,12,15,16

LEV1,3

PS1,3

Note:

1. TB02 is transmission

terminal block.

Never connect power

line to it.

2. The initial set values

of switch on CONT.B

are as follows.

SW1:0

SW2:0

SW2 SW1

110

CMB-P1010V-G ONLY

F01

250VAC

6.3A F

(Black)

(Red)

(Yellow)

(Red)

DSA

(Yellow)

81

OFF

ON

SW4

SW5

OFF

ON

81

2

132

3

1

T6

T2

T3

T4

T5

T1

T7T8T9

T10

Indoor/outdoor

Transmission line

50Hz/60Hz

~220V-240V

POWER SUPPLY

BREAKER(16A)FUSE(16A)

PULL BOX

TO NEXT INDOOR UNIT

PE

REL.B

SVM1

32 1

CNTR

1

3

CN26

CN38

31

531

76543211234567

CN50CN50

PS3

PS1

TR

TH16

TH15

TH12

TH11

CN11

CN10

CN02CN03

12321

123

4

8765432

112

CNP3

321

3

2

1

LEV1LEV3

123456123456

CONT.B

CN52

1

3

CN39

1234567

220V~240V20V~22V

SV6B

SV6A

SV6C

123

4

1

234

33

2

1

2

1

16

15

14

765

13

12

11

10

9

8

16

15

14

765

10

9

8

13

12

11

4

3

2

1

SV5C

SV5A

SV5B

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

234

123

4

234

1

753

1

753

1

753

1

753

1

753

1

7

X4

X3

X31

X6

X5

X32

X8

X7

X33

X10X9X34

X12

X11

X35

142

3

142

3

432

1

SV1C

SV1A

SV1B

123

4

531

X2

X1

X30

1234123412341234

SV7B

SV8B

SV9B

SV10B

SV7A

SV8A

SV9A

SV10A

SV7C

SV8C

SV9C

SV10C

131415 101112 9 78654

487 6512 11 10 915 14 1316

16

CN35(Blue)

CN32

CN33(Red)

CN34(Black)

X14

X13

X36

X37

X15

X16

X18

X17

X38

X39

X19

X20

57317531753175133 3

CN12

CN36(Green)

1

3

X21

S(SHIELD)

TB02

M2

M1

CNP1

CN13

CN07

CN05

CN27(Red)

CN28(Blue)

CN29(Green)

CN30(Black)

CN31(Yellow)

N

TB01

L

ZNR02

ZNR01

(Red)

- 73 -

[6] CMB-P1013, 1016V-G

Symbol explanation

Fuse AC250V 6.3A F

F01

TerminalT1

~16

TB02

TB01

REL.B

CONT.B

Circuit

board

Relay

BC controller

Terminal block

(for Transmission)

Solenoid valve

Terminal block

(for power source)

Pressure sensor

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1

~16A,B,C

SVM1

TR

TH11,12,15,16

LEV1,3

PS1,3

Note: 1. TB02 is transmission terminal block.

Never connect power line to it.

2. The initial set values of switch on CONT.B are as follows.

SW1:0

SW2:0

18

81

1

X41

3

135

7

135

7

5

X49

X50

X46

X47

X48

X44

X40

X43

X42

X45

135

7

135

7

X54

X57

X53

X52

X56

X55

X51

124

3

124

3

432

1

432

1

123

4

123

4

123

4

123

4

123

4

123

4

123

4

123

4

123

4

123

4

161514

7

6

51423

13

121110

161514

13

121110

9

8

231

798

654

1

3

123

2

SVM1

1357 1357 1357

X20

X18

X19

X17

X39

X38

X16

X15

X37

X36

X13

X14

33 1357

432 1432 1432 143 2 1

4321432 1432 14321

131415 101112 9 7865

4

87 6512 11 10 915 14 13

16

11

135

7135713571357135713

5

X2

X1

X30

X4

X3

X31

X6

X5

X32

X8

X7

X33

X10X9X34

X12

X11

X35

1

2

1233

432

1

432

1

123

4

123

4

123

4

123

4

234

123

4

123

4

123

4

123

4

234

161514

765

423

131211

1098

423

161514

131211

10

9

8

765

123

8765432

1

4

1

3

12321

123

4

8765432

112

321

123456123456

4

12345678321

31

531

31213

312

1

3

X21

CMB-P1016V-G ONLY

F01

250VAC

6.3A F

SW2 SW1

110

(Black)

(Red)

(Yellow)

(Blue)

DSA

ON

OFF

SW5

OFF

SW4

ON

T16

T12

T13

T14

T15

T11

T7T8T9

T10

T6

T2

T3

T4

T5

T1

3

1

3

122

Indoor/outdoor

Transmission line

TO NEXT

50Hz/60Hz

~220V-240V

POWER SUPPLY

BREAKER(16A)FUSE(16A)

PULL BOX

PE

INDOOR UNIT

CN42

SV16C

SV16A

SV16B

SV15C

SV15A

SV15B

SV14B

SV14A

SV14C

SV13B

SV13A

SV13C

SV12B

SV12A

SV12C

SV11C

SV11A

SV11B

REL.B

CN40

CN32

SV10C

SV10A

SV10B

SV9C

SV9A

SV9B

SV8C

SV8A

SV8B

SV7C

SV7B

SV7A

SV6C

SV6A

SV6B

SV5C

SV5A

SV5B

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

SV1C

SV1A

SV1B

(Yellow)

CN43(Red)

CN41(Green)

CN45(Green)

CN44(Yellow)

20V~22V 220V~240V

PS3

PS1

CNTR

CN26

CN38

TR

TH16

TH15

TH12

TH11

CN11

CN10

CN02CN03

CNP3

CNP1

CNOUT4

CNOUT2

CNOUT1

CNOUT3

CN12

CN39

CONT.B

CNVCC2

CNVCC1

LEV3 LEV1

CN13

CN05

CN07

(Yellow)(Blue)

(Red)

CN27(Red)

CN28(Blue)

CN29(Green)

CN30(Black)

CN31(Yellow)

CN36(Green)

CN35(Blue)

CN34(Black)

CN33(Red)

S(SHIELD)

TB02

M2

M1

TB01

N

L

ZNR02

ZNR01

- 74 -

[7] CMB-P104V-GB

Symbol explanation

Fuse AC250V 6.3A F

F01

TerminalT1

~4

TB02

TB01

CONT.B

Circuit

board

BC

controller

Terminal block

(for Transmission)

Solenoid valve

Terminal block

(for power source)

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1

~4A,B,C

TR

TH12,15

LEV3

Note: 1. TB02 is transmission terminal block.

Never connect power line to it.

2. The initial set values of switch on

CONT.B are as follows.

SW1:0

SW2:0

SW2 SW1

110

F01

250VAC

6.3A F

(Yellow)

(Red)

(Yellow)

DSA

ON

OFF

1

SW5

OFF

8

SW4

ON

1

8

T2

T3

T1

T4

Indoor/outdoor

Transmission Line

PULL BOX

TO NEXT INDOOR UNIT

50Hz/60Hz

220V~240V

POWER SUPPLY

BREAKER(16A)

FUSE(16A)

PE

TR

CN26

3

1

CN12

153

CONT.B

CN02

211234567

8

4

3

2

1

12321

CN10

CN11

TH12

TH15

654321

LEV3

220V~240V20V~22V

123

4

10

9

8

423

10

214

3

SV3A

SV3B

SV2B

SV3C

SV2C

SV2A

243

756

4

3

2

1

234

1

234

9

8

7

6

5

SV1C

SV1A

SV1B

7

5

3

1

7

5

3

1

7

5

3

1

X2

X1

X30

X4

X3

X31

X6

X5

X32

1

234

13

12

11

16

15

14

13

12

11

SV4B

SV4C

SV4A

151614

1

234

1

7

5

3

1

X8

X7

X33

TB02

S(SHIELD)

M2

M1

CN03

CN13

TB01

N

L

CN07

(Red)

CNTR

CN27(Red)

CN28(Blue)

CN29(Green)

ZNR01 ZNR02

- 75 -

[8] CMB-P108V-GB

Symbol explanation

Fuse AC250V 6.3A F

F01

TerminalT1

~8

TB02

TB01

REL.B

CONT.B

Circuit

board

Relay

BC controller

Terminal block

(for Transmission)

Solenoid valve

Terminal block

(for power source)

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1

~8A,B,C

TR

TH12,15

LEV3

Note:

1. TB02 is transmission

terminal block.

Never connect power

line to it.

2. The initial set values

of switch on CONT.B

are as follows.

SW1:0

SW2:0

SW2 SW1

110

(Red)

(Yellow)

DSA

F01

250VAC

6.3A F

81

OFF

ON

SW4

SW5

OFF

ON

81

T6

T2

T3

T4

T5

T1

T7T8

Indoor/outdoor

Transmission line

PE

TO NEXT INDOOR UNIT

PULL BOX

FUSE(16A) BREAKER(16A)

POWER SUPPLY

~220V-240V

50Hz/60Hz

PE

REL.B

CNTR

1

3

CN26

CN38

31

531

7654321

CN50

TR

TH15

TH12

CN11

CN10

CN02CN03

12321

123

4

8765432

112

LEV3

123456

CONT.B

CN52

1

3

CN39

1234567

220V~240V20V~22V

SV6B

SV6A

SV6C

123

4

123

4

33

2

1

2

1

161514

765

13

12

11

10

9

8

161514

765

10

9

8

13

12

11

4

3

2

1

SV5C

SV5A

SV5B

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

234

123

4

234

1

7

531

7

531

7

531

753

1

753

1

7

X4

X3

X31

X6

X5

X32

X8

X7

X33

X10X9X34

X12

X11

X35

142

3

142

3

432

1

SV1C

SV1A

SV1B

123

4

531

X2

X1

X30

12341234

SV7B

SV8B

SV7A

SV8A

SV7C

SV8C

131415 101112 9 78654

487 6512 11 10 915 14 1316

16

CN32

X14

X13

X36

X37

X15

X16

X18

X17

X38

X39

X19

X20

57317531753175133 3

CN12

TB02

S(SHIELD)

M2

M1

(Red)

CN13

CN07

ZNR01 ZNR02

N

L

TB01

CN27(Red)

CN28(Blue)

CN29(Green)

CN30(Black)

CN35(Blue)

CN34(Black)

CN33(Red)

CN31(Yellow)

- 76 -

[9] CMB-P108, 1010V-GA

Symbol explanation

Fuse AC250V 6.3A F

F01

TerminalT1

~10

TB02

TB01

REL.B

CONT.B

Circuit

board

Relay

BC controller

Terminal block

(for Transmission)

Solenoid valve

Terminal block

(for power source)

Pressure sensor

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1

~10A,B,C

SVM1,2

TR

TH11,12,15,16

LEV1~3

PS1,3

Note:

1. TB02 is transmission

terminal block.

Never connect power

line to it.

2. The initial set values

of switch on CONT.B

are as follows.

SW1:0

SW2:0

CMB-P1010V-GA ONLY

F01

250VAC

6.3A F

10 1

SW1SW2

(Black)

(Red)

(Yellow) (Red)(Blue)

DSA

18

ON

OFF

SW5

SW4

ON

OFF

18

T10

T9 T8 T7

T1

T5

T4

T3

T2

T6

1

3

231

2

Indoor/outdoor

Transmission line

PE

TO NEXT INDOOR UNIT

FUSE(16A)

PULL BOX

BREAKER(16A)

POWER SUPPLY

~220V-240V

50Hz/60Hz

SVM2

SVM1

32 1

321

3214

4321

3331571357157175

X20

X19

X39

X38

X17

X18

X16

X15

X37

X36

X13

X14

CN32

16

16 131415 9101112 56784

45687912 11 1015 14 13

SV10C

SV9C

SV8C

SV7C

SV10A

SV9A

SV8A

SV7A

SV10B

SV9B

SV8B

SV7B

432 1 43 2 1 43 21 432 1

4321 4321 4321 4321

7654321

CN52

REL.B

CN39

CN35(Blue)

CN34(Black)

CN33(Red)

1

3

1

3

1

3

CN46(Yellow)

X21

X60

X30

X1

X2

135

432

1

SV1B

SV1A

SV1C

123

4

324

1

X35

X11

X12

X34

X9

X10

X33

X7

X8

X32

X5

X6

X31

X3

X4

713571357135713571357

1

432

1

432

SV2C

SV2A

SV2B

SV3C

SV3A

SV3B

SV4C

SV4A

SV4B

SV5B

SV5A

SV5C

1

2

3

4

8

9

10

111213

567

141516

123

324

1

8

9

10

111213

567

141516

123

432

1

432

1

SV6C

SV6A

SV6B

20V~22V 220V~240V

CONT.B

654321654321

LEV3 LEV1

123

CNP3

211234567

8

432

1

12321

CN02

CN10

CN11

TH11

TH12

TH15

TH16

TR

PS1

PS3

CN50

7654321

135

CN12

13

CN38

CN26

3

1

654321

LEV2

CNP1

CN13

CN07 CN05CN06

S(SHIELD)

TB02

M2

M1

ZNR02

ZNR01

CNTR

(Red)

CN27(Red)

CN28(Blue)

CN29(Green)

CN31(Yellow)

CN30(Black)

CN36(Green)

L

N

TB01

CN03

(Yellow)

- 77 -

[10] CMB-P1013, 1016V-GA

Symbol explanation

Fuse AC250V 6.3A F

F01

TerminalT1

~16

TB02

TB01

REL.B

CONT.B

Circuit

board

Relay

BC controller

Terminal block

(for Transmission)

Solenoid valve

Terminal block

(for power source)

Pressure sensor

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1

~16A,B,C

SVM1,2

TR

TH11,12,15,16

LEV1~3

PS1,3

Note: 1. TB02 is transmission terminal block.

Never connect power line to it.

2. The initial set values of switch on CONT.B are as follows.

SW1:0

SW2:0

F01

250VAC

6.3A F

(Red)

CMB-P1016V-GA ONLY

SW2 SW1

110

(Black)

(Red)

(Yellow)

(Blue)

DSA

(Blue)

18

ON

OFF

SW5

OFF

8

SW4

ON

1

PE

50Hz/60Hz

~220V-240V

POWER SUPPLY

TO NEXT

INDOOR UNIT

BREAKER(16A)FUSE(16A)

PULL BOX

T16

T12

T13

T14

T15

T11

T7T8T9

T10

T6

T2

T3

T4

T5

T1

3

1

3

1

2

Indoor/outdoor

Transmission line

X60

CN46(Yellow)

133

CNOUT4

CNOUT2

4

1234567

832

1

CN12

531

TB01

L

N

LEV1

123456

CN05

2

113

2

3

SVM1

SVM2

1

3

135

7

135

7

5

X49

X50

X48

135

7

135

7

X54

X57

X53

X52

X56

X55

X51

1

243

4

3

1

432

1

SV16C

SV16A

SV16B

123

4

123

4

123

4

123

4

123

4

123

4

123

4

123

4

123

4

SV15C

SV15A

SV15B

SV14B

SV14A

SV14C

SV13B

SV13A

SV13C

SV12B

SV12A

SV12C

123

4

161514

7

6

51423

13

121110

9

8

1

243

161514

7

6

51423

13

121110

9

8

SV11C

SV11A

SV11B

REL.B

CN43(Red)

CN44(Yellow)

CN45(Green)

X21

CN36(Green)

1

1357 1357 1357

X20

X18

X19

X17

X39

X38

X16

X15

X37

X36

X13

X14

33 1357

CN32

432 1432 143 2 1432 1

432 143 2143214321

131415 101112 9 78654

487 6512 11 10 915 14 13

16

SV10C

SV10A

SV10B

SV9C

SV9A

SV9B

SV8C

SV8A

SV8B

SV7C

SV7B

SV7A

1

11

1357135

71357135713571357

X2

X1

X30

X4

X3

X31

X6

X5

X32

X8

X7

X33

X10X9X34

X12

X11

X35

CN26

CN27(Red)

CN28(Blue)

CN29(Green)

CN30(Black)

CN31(Yellow)

1

2

1233

432

1

432

1

SV6C

SV6A

SV6B

123

4

123

4

123

4

123

4

234

123

4

123

4

123

4

123

4

SV5C

SV5A

SV5B

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

234

161514

765

423

131211

10

9

8

423

161514

131211

10

9

8

765

SV1C

SV1A

SV1B

X41

CN42

X46

X47

X44

X40

X43

X42

X45

20V~22V 220V~240V

PS3

PS1

123

8765432

1

4

1

3

CN38

TR

TH16

TH15

TH12

TH11

CN11

CN10

CN02

12321

123

12345612345

6

4

8765432

112

CNP3

321

31

CNOUT1

CNOUT3

31

CN39

CONT.B

213

CNVCC2

312

LEV3

S(SHIELD)

TB02

M2

M1

CN03

(Yellow)

CNVCC1

(Blue)

CNP1

CN13

CN07

LEV2

CN06

ZNR02ZNR01

CN35(Blue)

CN33(Red)

CN34(Black)

(Yellow)

CN40

CN41(Green)

(Red)

CNTR

- 78 -

§§

Refrigerant Circuit

[1] Refrigerant Circuit Diagram

< PURY-P200, P250, P300, P350, P400YGM-A >

TH11

21S4a

COMP

1

O/S

CJ1

ACC

63HS

CJ2

TH6

TH7

63LS

63H1

ST6

ST14

ST17

TH5

BV2

BV1ST1

ST15

ST16

Drier

CV10a

CV4a

CV5a

CV2a

CV3a

CV6a

Orifice

SV4a

SV4b

SV4c

SV4d

Solenoid Valves Block

Check Valves Block

CV9a

CV8a

CV7a

HEXb1

HEXf3

HEXf2

HEXf1

ST11 ST10

CP1

SV2

SV1

- 79 -

< PURY-P450, P550, P600, P650YGM-A >

TH11

TH12

21S4b

21S4a

COMP

1

COMP

2

O/S O/S

CJ1

CJ3

ACC

63HS

CJ2

TH6

TH7

63LS

63H1

63H2

ST5

ST6

ST13

ST14

ST17

ST18 ST19

TH5

BV2

BV1

ST1

ST15

ST16

Drier

CV10a

CV4a

CV2a

CV 3a

CV4b CV5b

CV2b

CV3b

CV6b

CV5a

CV6a

Orifice

SV4a

SV4b

SV4c

SV4d

SV5a

SV5b

CV 7b

Solenoid Valves Block1

Solenoid Valves Block2

Check Valves Block1

Check Valves Block2

CV9a

CV8a

CV7a

HEXb1

HEXb2 HEXf4

HEXf3

HEXf2

HEXf1

ST12 ST11 ST10

ST7

CV2

Oil

Tank

CV1

CP2

CP1

SV2

SV3

SV1

ø 19.05

ø 6.35

- 80 -

< CMB-P104,105,106,108,1010,1013,1016V-G >

< CMB-P104,108V-GB >

TH15

TH12

LEV3

LEV1

TH16

PS1 PS3

TH11

SVM1

HIC-B

Gas/Liquid Separator

Solenoid valves Block

Check valves Block

TH25

TH22

LEV3a

CP

Solenoid valves Block

Check valves Block

- 81 -

< CMB-P108,1010,1013,1016V-GA >

TH15

TH12

LEV3

LEV1

TH16

PS1

PS3

TH11

Solenoid valves Block

SVM1

SVM2

Gas pipe

(high pressure side)

Gas/Liquid Separator

LEV2

Liquid pipe

Check

valves Block

Gas pipe

(low pressure side)

Name Notes Function Specification Check method

Symbol

(function)

1

273+t

Compressor

High

-pressure sensor

Pressure switch

Thermistor

MC1

MC2

63HS

P450-P650 types only

R

120=7.465kΩ

R25/120=4057 Rt =

7.465exp{4057( - )}

Resistance value check

1

393

1

273+t

R0=15kΩ R0/80=3460 Rt = 15exp{3460( - )}

1

273

Pressure 0~4.15MPa Vout 0.5~3.5V

0.071V/0.098MPa Pressure [MPa] =1.38✕Vout[V]-0.69

Gnd (Black) Vout (White) Vcc (DC5V) (red)

Connector

63HS

1

123

2 3

Adjusts the volume of circulating refrigerant by controlling the operating frequency with the operating pressure.

Secures a constant amount of circulating refrigerant when the operating load exceeds MC1 s ability to control the refrigerant amount.

(P200-type) High-pressure shell scroll type Winding resistance

20˚C : 0.72Ω

(P250-P400 types) Low-pressure shell scroll type Winding resistance

20˚C : 0.583Ω

Low-pressure shell scroll type Winding resistance

20˚C : 1.981Ω

63H1 63H2

TH11, 12 (Discharge)

TH5 (Piping temperature)

TH6 (Outdoor air temperature)

TH7

THHS Inverter heat sink temperature

Heat sink

63H2 on P450

-P650 types only

TH12 on P450-P650 types only

1 Detects high pressure 2 Protects high pressure

Controls defrost during heating operation

1 Detects discharge temperature 2 Protects high pressure

1 Detects outdoor temperature 2 Controls fan operation

Controls defrost during heating operation

Controls inverter cooling fan, using THHS temperature.

0˚C : 698kΩ 60˚C : 48kΩ 10˚C : 413kΩ 70˚C : 34kΩ 20˚C : 250kΩ 80˚C : 24kΩ 30˚C : 160kΩ 90˚C : 17.5kΩ 40˚C : 104kΩ 100˚C : 13.0kΩ 50˚C : 70kΩ 110˚C : 9.8kΩ

0˚C : 15kΩ 25˚C : 5.3kΩ 10˚C : 9.7kΩ 30˚C : 4.3kΩ 20˚C : 6.4kΩ 40˚C : 3.1kΩ

1

273+t

R0=17kΩ R25/120=4170 Rt = 17exp{4170( - )}

1

323

0˚C : 181kΩ 25˚C : 50kΩ 10˚C : 105kΩ 30˚C : 40kΩ 20˚C : 64kΩ 40˚C : 26kΩ

4.15MPa Set to OFF

1 Detects high pressure 2 Regulates frequency and protects

high pressure.

Low

-pressure sensor

63LS

Pressure 0~1.7MPa Vout 0.5~3.5V

0.173V/0.098MPa Pressure [MPa] =0.566✕Vout[V]-0.283

Gnd (Black) Vout (White) Vcc (DC5V) (red)

Connector

63LS

1

123

2 3

1 Detects low-pressure 2 Protects low-pressure

- 82 -

[2] Functions of Principal Parts

1. Outdoor Unit

Name FunctionNotes Specification Check method

Symbol

(function)

Solenoid valve

SV1 Dischargesuction bypass

SV3 Dischargesuction bypass

SV4a~4d Heat exchanger capacity control

SV5a, 5b Heat exchanger capacity control

21S4b

P450-P650 types only

P400-P650 types only

1

High/low pressure bypass at starting and stopping, and capacity control during low-load operation

2 High-pressure rise suppression

Provides compressor protection when Compressor No. 2 is at a stop

SV2 Dischargesuction bypass

Low-pressure down suppression

Controls outdoor unit heat exchanger capacity.

Heats refrigerants in the compressor.

4-way valve

21S4a

Switches between cooling and heating cycles.

AC220

~240V Open when energized Closed when not energized

AC220

~240V Closed when energized Open when not energized

Resistance value check

Continuity check with a tester

Cord heater AC220

~240V

CH11,CH12·····1280Ω 45W

AC220

~240V De-energized : cooling cycle Energized : heating cycle

Continuity check with a tester

CH12 on P450-P650 types only

1

273+t

R0=15kΩ R0/80=3460 Rt = 15exp{3460( - )}

1

273

0˚C : 15kΩ 30˚C : 4.3kΩ 10˚C : 9.7kΩ 40˚C : 3.1kΩ 20˚C : 6.4kΩ 25˚C : 5.3kΩ

CH11, 12 Crankcase heater

Heater

Name FunctionNotes Specification Check method

Symbol

(function)

Linear expansion valve

Thermistor

LEV

TH1

(Suction air

temperature)

TH2 (Piping temperature)

TH3 (Gas-side piping temperature)

TH4

(Outdoor air

temperature)

Temperature sensor

(Indoor

air temperature)

1 Adjusts superheat at the indoor

heat exchanger outlet during cooling

2 Adjusts subcool at the indoor heat

exchanger outlet during cooling

1 Indoor unit control (Anti-

freeze/heat adjustment)

2 LEV control during heating

operation (subcool detection)

Indoor unit control (Thermo)

LEV control during cooling operation (superheat detection)

Indoor unit control (Thermo)

DC12V Opening of stepping motor driving valve 0-(1400) pulses

Resistance value check

Refer to the section on continuity test with a tester Continuity between white-red-orange Continuity between yellow-brown-blue

YellowMBlueBrown

White

Red

Orange

- 83 -

2. Indoor Unit

Name Notes Function Specification Check method

Symbol

(function)

Pressure sensor

Thermistor

LEV

63HS1 (Liquid side)

63HS3 (Mid point)

TH11 (Liquid inlet temperature)

Pressure 0~4.15MPa Vout 0.5~3.5V

0.071V/0.098MPa Pressure [MPa] =1.38✕Vout[V]-0.69

63HS

1

123

2 3

1 Detects mid-point pressure 2 LEV control

LEV control (liquid level control)

TH12 (By-pass outlet temperature)

LEV control (Superheat)

TH15 (By-pass outlet temperature)

LEV control (Superheat)

TH16 (By-pass outlet temperature)

LEV control (Subcool)

AC220~240V Open when being powered Open when not being powered

Continuity test with a tester

DC12V Opening of stepping motor driving valve 0-2000 pulses

Same as the indoor LEV

LEV1

Liquid level control Pressure difference control

LEV3

Liquid level control Pressure difference control

1

273+t

R0=15kΩ R0/100=3460 Rt = 15exp{3460( - )}

1

273

0˚C : 15kΩ 10˚C : 9.7kΩ 20˚C : 6.4kΩ 25˚C : 5.3kΩ 30˚C : 4.3kΩ 40˚C : 3.1kΩ

1

Detects liquid-side (high pressure) pressure

2 LEV control

Solenoid valve

SVM1

Open during all-cooling and defrost operations

SV

A

Supplies refrigerant to indoor units in cooling operation

SV

B

Supplies refrigerant to indoor units in heating operation

SV

C

Supplies refrigerant to indoor units in cooling operation

GND Vout Vcc (DC5V)

(Black)

(White)

(red)

Connector

- 84 -

[3] BC controller

1. G type

Name Notes Function Specification Check method

Symbol

(function)

Pressure sensor

Thermistor

LEV

63HS1 (Liquid side)

63HS3 (Mid point)

TH11 (Liquid inlet temperature)

Pressure 0~4.15MPa Vout 0.5~3.5V

0.071V/0.098MPa Pressure [MPa] =1.38✕Vout[V]-0.69

GND Vout Vcc (DC5V)

(Black)

(White)

(red)

Connector

63HS

1

123

2 3

1 Detects mid-point pressure 2 LEV control

LEV control (liquid level control)

TH12 (By-pass outlet temperature)

LEV control (Superheat)

TH15 (By-pass

inlet

temperature)

LEV control (Superheat)

TH16 (Liquid temperature)

LEV control (Subcool)

AC220~240V Open when being powered Open when not being powered

Continuity test with a tester

DC12V Opening of stepping motor driving valve 0-2000 pulses

Same as the indoor LEV

LEV1 LEV2

Liquid level control Pressure difference control

LEV3

Liquid level control Pressure difference control

1

273+t

R0=15kΩ R0/100=3460 Rt = 15exp{3460( - )}

1

273

0˚C : 15kΩ 10˚C : 9.7kΩ 20˚C : 6.4kΩ 25˚C : 5.3kΩ 30˚C : 4.3kΩ 40˚C : 3.1kΩ

1

Detects liquid-side (high pressure) pressure

2 LEV control

Solenoid valve

SVM1

Open during all-cooling and defrost operations

SVM2

Pressure difference control

Supplies refrigerant to indoor units in cooling operation

Supplies refrigerant to indoor units in heating operation

Supplies refrigerant to indoor units in cooling operation

SV A

SV

B

SV

C

- 85 -

2. GA type

Name Notes Function Specification Check method

Symbol

(function)

Thermistor

LEV

TH22 (By-pass outlet temperature)

LEV control (Superheat)

TH25 (By-pass

inlet

temperature)

LEV control (Superheat)

AC220~240V Open when being powered Open when not being powered

Continuity test with a tester

DC12V Opening of stepping motor driving valve 0-2000 pulses

Same as the indoor LEV

LEV3a

Pressure difference control

1

273+t

R0=15kΩ R

0/100=3460

Rt = 15exp{3460( - )}

1

273

0˚C : 15kΩ 10˚C : 9.7kΩ 20˚C : 6.4kΩ 25˚C : 5.3kΩ 30˚C : 4.3kΩ 40˚C : 3.1kΩ

Solenoid valve

Supplies refrigerant to indoor units in cooling operation

Supplies refrigerant to indoor units in heating operation

Supplies refrigerant to indoor units in cooling operation

SV A

SV

B

SV

C

3. GB type

- 86 -

SW4

SW5

1

2

3

4

1

2

3

4

5

6

7

8

9

–

Pump down operation

Heating Tcm

–

Unit model selection

–

Night mode/Step demand Night mode Demand function Before power on

–

SW3

1

2

3

4

5

6

7

8

9

10

Not connected to the centralized control

Ordinary control

–

Ordinary control

50 minutes

–

SW3-2 invalid

Stops all ICs

-10 (-8 for 400-type units and above)

10 (15 for 450-type units and above)

–

Ordinary control

49˚C

Refer to the next page

–

Before power on

Unit model selection Refer to the next page Before power on

Before power on

Anytime after power on (When switched from OFF to ON)

Anytime after power on (Except during initial start up mode/becomes ineffective 2 hours after compressor start up)

–

Anytime after power on (When switched from OFF to ON)

–

Anytime after power on

After power on and when SW3-1 is on.

Anytime after power on

Anytime after power on (except during defrost operation)

–

After power on and while compressor is stopped

Anytime after power on

–

.

–

Switch Function

Function according to switch setting Switch setting timing

OFF ON OFF ON

SWU

SW2

1~2

1

2

3

4

5

6

7

8

9

10

Unit address setting

Centralized control switch

Deletion of connection information

Deletion of error history

Refrigerant amount adjustment

–

Forced defrost

Defrost timer setting

–

Test run: valid/invalid

Test run: ON/OFF

Defrost start temperature

Defrost end temperature

Set to 00 or 51-100 with the dial switch

Anytime after power on

SW1

1~10

For self-diagnosis/operation monitoring

Refer to the LED monitor display on the outdoor unit board

10 minutes after compressor start up

Anytime after power on (When switched from OFF to ON)

Connected to the centralized control

Deletion

Deletion of IC/OC error history

Storage of IC/OC error history

Refrigerant amount adjustment mode

–

Start forced defrosting

90 minutes

–

SW3-2 valid

Test runs all ICs

-7 (-5 for 400-type units and above)

15 (20 for 450-type units and above)

–

Pump down operation

53˚C

–

–– ––

–

––––

–

–– ––

Emergency operation valid/invalid

Valid

Anytime after power on

Invalid

–

–– ––

Note: All are set to OFF at factory shipment

¶¶

Control

[1] Dip Switch Functions and Their Factory Settings

1. Outdoor unit

(1) Main board

- 87 -

DipSW3-9

DipSW5-1

OFF ON

OFF Standard specification

ON

High-static pressure (60Pa) specification

Standard specification

High-static pressure (30Pa) specification

Switch Function

Function according to switch setting Switch setting timing

OFF ON OFF ON

SW1

SW2

1

2

3

4

5

6

1

2

3

4

Enabling/disabling the following error detection functions: ACCT, DCCT sensor circuit error (530X Detail No. 115, 116) ACCT, DCCT sensor error (530X Detail No. 117, 118) IPM open/Disconnected CNCT2 (530X Detail No. 119) Detection of erroneous wiring (530X Detail No. 120)

–

Inverter address

–

Error detection enabled

–

0

–

Error detection disabled

–

1

–

Anytime after power on

–

––––

Always leave it to ON

–

Note 1 Except for SW2-1, all are set to OFF at factory shipment.

Unless otherwise specified, set the switch to OFF where indicated by “ ––,” which may be set to a certain setting for a reason.

Note 2 Leave SW1-1 off during normal operation. If it is turned on, errors cannot be detected and the unit may be damaged.

Switch Function

Function according to switch setting Switch setting timing

OFF ON OFF ON

SW2 1

2

3

4

Inverter address

–

0

–

5

–

Always leave it to ON

–

Note 1 Except for SW2-1, all are set to OFF at factory shipment.

Unless otherwise specified, set the switch to OFF where indicated by “ ––,” which may be set to a certain setting for a reason.

(2) INV board

(3) FAN board

- 88 -

SW1

1 2 3 4 5 6 7 8

9

10

1

2

3

4 5

7 8 9

10

DIP SW1, 3

Switch Function

Function according to switch operation

Switch set timing

Remarks

OFF ON OFF ON Room temp. sensor position Clogged filter detect. Filter duration OA intake Remote display select. Humidifier control Heating thermo. OFF airflow Heating thermo. OFF airflow

Power failure automatic return

Power source start/stop Model selection

Louver

Vane

Vane swing function Vane horizontal angle

–

Heating 4K up

– –

Indoor unit inlet

None

100h

Ineffective

Fan output display

At stationary heating

Very low speed

SW1-7 setting

Ineffective

Heat pump

None

1st setting

–

Effective

– –

Built in remote controller

Provided

2500h

Effective

Thermo. ON signal display

Always at heat.

Low speed

Set airflow

Effective

Cooling only

Provided

Provided Provided

2nd setting

–

Ineffective

– –

Always ineffective for PKFY-P.VAM

Not provided for PKFY-P.VAM

Ineffective (ON) setting for floorstanding

Cooling capacity saving for PKFY-P. VAM, effective/ineffective

  







At unit

stopping

(at remote

controller

OFF

)

SW3

Note:

When both SW1-7 and SW1-8 are being set to ON, the fan stops at the heating thermostat of OFF.

Model P20 P25 P32 P40 P50 P63 P71

Capacity code

4 5 6 8 101314

(model name)

SW2 setting

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

Model P80 P100 P125 P140 P200 P250

Capacity code

16 20 25 28 40 50

(model name)

SW2 setting

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

Setting of DIP SW2

6 Vane angle set for cooling Down blow B, C Horizontal Always down blow B,C for PKFY-P.VAM

2. Indoor unit

- 89 -

Setting of DIP SW5

Option

Standard

220V

240V

ON

ON : 220V

230V

OFF : 240V

OFF

(PLFY-P·VLMD-E)

Switch Function Operation by switch Switch set timing

Ceiling height setting

External static pressure setting

Setting of air outlet opening

Airflow control

For other models, change the setting of static pressure by replacing the connector.

Set to the option to install the high efficiency filter.

Always after powering

Ceiling height

33.5m

22.8m

12.3m

123

2-way

4.0m

(3.3m)

4.2m

(3.5m)

–

3-way

3.6m

(3.0m)

4.0m

(3.3m)

4.2m

(3.5m)

4-way

Values in the parenthese are for P32~80 types.

3.2m

(2.7m)

3.6m

(3.0m)

4.2m

(3.5m)

SWB SWA

3

2

1

(PCFY-P-VGM-E)

(PDFY-P20 ~ 80VM-E, PEFY-P20 ~ 80VMM-E)

3

2

1

100Pa

50Pa

30Pa

(PLFY-P-VAM-E)

2-way

3-way

4-way

(PLFY-P-VAM-E, PCFY-P-VGM-E, PKFY-P-VGM-E, PDFY-P-VM-E)

SWA

SWB

SWC

1 Model type setting

Model type setting

OFF ON

SW4

2~8

SW587

1~6

Switch Function

Function according to the switch setting

Switch setting timing

Refer to the “Model type setting” below

Always leave it to OFF

Before powering

–

R410A –

–

OFF ON

OFF

ON

Type GA Type GB

SW5-8

SW5-7

• Model type setting

Type G

- 90 -

3. BC controller (main board)

1ON234

Before powering

Removing the cover shows switches at the lower part of the remote controller unit. By operating these switches, the

controller main/sub, and other function will be set. In normal case, do not change the setting except No.1 switch used to set the main/sub. (All setting at factory shipment are "ON."

Remote controller unit

Switch

Function ON OFF Action by switching Switch set timing

1

Remote controller

Main Sub

main/sub

2

At powering of Normal Timer mode remote controller start up start up

3

Cooling/heating display

Yes No

at automatic setting

4

Inlet temperature display

Sets one to "Sub" when connecting 2 sets in 1 group.

Sets to "Timer mode start up" so desired at power failure return when the schedule timer is connected.

Sets to "No" when not desiring to display "Cooling" or "Heating."

Sets to "No" when not desiring to display inlet temperature.

Selector switch Remote controller unit

remote

4. Remote controller

(1) MA remote controller (PAR-20MAA)

- 91 -

0

1

2

3

4

5

6

7

8

9

0

1

2

3

4

5

6

7

8

9

0

1

2

3

4

5

6

7

8

9

0

1

2

3

4

5

6

7

8

9

Set the address of the remote controller with the rotary switch.

Address setting range Setting method

Main remote controller 101 ~ 150 Set to the lowest indoor main unit address + 100.

Sub remote controller 151 ~ 200 Set to the lowest indoor main unit address + 150.

Setting of rotary switch Address No.

01 ~ 99 101 ~ 199 being added with 100

00 200

Note : To set addresses, use a precision screwdriver [(–), 20mm (w)], and apply load less than 19.6N.

Operating with a method other than above may damage the rotary switch.

10 digits 1 digit

(left) (right)

Remote controller unit

Rotary switch

Example: In case of address 108

(2) ME remote controller (PAR-F27MEA)

[2] Controlling the Outdoor Unit

1. Initial control

• When the power is turned on, the initial processing of the microcomputer is given top priority.

• During the initial processing, control processing of the operation signal is suspended. The control processing is

resumed after the initial processing is completed. (Initial processing: processing of the data inside the microcomputer and initial setting of each LEV opening, requiring up to approximately 2 minutes.)

• During the initial processing, the LED monitor on the outdoor unit’s main board displays “S/W version”, “refrig- erant type”, “heat pump”, “cooling only and capacity” in turn every second.

2. Control at start-up

• The upper limit of frequency during the first 3 minutes of the operation is 50Hz.

• When the power is turned on, normal operation will start after the initial start-up mode (to be described later)

has been completed (with a restriction on the frequency).

- 92 -

No.1 Compressor

Stopped Stopped OFF

In operation Stopped ON

In operation In operation OFF

No.2 Compressor SV3

When low pressure (LPS) drops in heating-only or heating-main operation (5 or more minutes after compressor startup)

When low pressure (LPS) drops below 0.25 MPa.

When low pressure (LPS) rises above 0.39 MPa.

Item

ON OFF

SV2

ON for 4 minutes

ON for 2 minutes

Always ON. (Exception : OFF when HPS-LPS 0.2MPa)

ON for 3 minutes. (Exception : OFF when HPS 0.2MPa)

Always ON

Always OFF during cooling operation and always ON

during heating operation when running an oil-recovery operation after running a

continuous operation at low frequency.

When low pressure (LPS) drops below 0.23 MPa.

When low pressure (LPS) exceeds

0.38 MPa.

When Pd exceeds 3.77 MPa

When Pd is or below 3.43MPa and 30 seconds has passed

SV1

Operation Timing

ON (Open) OFF (Close)

At No. 1 compressor start up or at No. 2 compressor start up (P450-P650 types only)

After the restoration of thermo or 3 minutes after restart

During cooling or heating operation with the compressor stopped

After the operation has stopped

During defrost operation (See figure

✻1 below)

During oil-recovery operation

During an operation with the compressor running at 30Hz When low pressure (LPS) drops (After 3 minutes have past since start up)

When high pressure (Pd) rises

[ Example of an SV1 operation ]

Start up

Thermo. Thermo. Defros-

ting Time

Stop

OFF ON

Compressor

Bypass solenoid

valve (SV1)

(4-minute)

(2-minute) (8-minute) (3-minute)

3. Bypass control

Bypass solenoid valves (P200-P400: SV1, SV2, P450-P650: SV1, SV2, SV3), which bypass the high- and lowpressure sides, operate in the following manner.

(1) Bypass solenoid valve (SV1) (ON = Open)

(3) Bypass Valve (SV3, P450-P650 types only) (ON = Open)

• The opening SV3 is controlled by the configuration of No.1 and No.2 compressor operations.

(2) Bypass solenoid valve (SV2) (Open when ON)

- 93 -

Model Frequency/cooling Frequency/heating Speed

P200 type 30~81Hz 30~92Hz 3Hz/sec.

P250 type 20~69Hz 20~85Hz 3Hz/sec.

P300 type 20~83Hz 20~98Hz 3Hz/sec.

P350 type 20~95Hz 20~102Hz 3Hz/sec.

P400 type 20~100Hz 20~103Hz 3Hz/sec.

P450 type (50/60Hz) 20~70/56Hz 20~83/73Hz 3Hz/sec.

P500 type (50/60Hz) 20~85/73Hz 20~92/84Hz 3Hz/sec.

P550 type (50/60Hz) 20~96/88Hz 20~99/93Hz 3Hz/sec.

P600 type (50/60Hz) 20~104/98Hz 20~109/105Hz 3Hz/sec.

P650 type (50/60Hz)

✻ The maximum frequency during heating operation is affected by the outdoor air

temperature to a certain extent.

20~112/107Hz 20~110/113Hz 3Hz/sec.

4. Frequency control

• Depending on the capacity required, the frequency of the compressor is controlled to keep constant the evaporation temperature (0˚C = 0.71MPa) during cooling operation and condensing temperature (49˚C = 2.88MPa) during heating operation.

• The capacity of the P200-P400 is controlled solely by the inverter-driven compressor, and the capacity of P450-P650 is controlled by No.1 and No.2 compressors.

• The following table shows the frequency change of the inverter compressor during normal operation.

(1) No. 2 compressor operation/stop (P450-P650 types only)

1 No. 2 compressor going from stop to in-operation

When No.1 compressor does not meet the capacity requirement, No.2 compressor will start its operation.

2 No. 2 compressor going from in-operation to stop

When an operation of both No.1 and No.2 compressors exceeds the capacity requirement, No.2 compressor will stop its operation.

(2) Pressure limit

The maximum limit of high pressure (Pd) is set for each frequency level. If this limit is exceeded, the frequency will be reduced every 30 seconds.

(3) Discharge temperature limit

The discharge temperature (Td) of the compressor in operation is detected, and if it exceeds the upper limit, the frequency is reduced by 5 Hz.

• Control is performed 30 seconds after compressor start-up and every 30 seconds thereafter.

• Operating temperature is 105˚C for P200 type and 115˚C for P250-P650 types.

(4) Periodic frequency control

Frequency control other than the ones performed at startup, upon status change, and for protection is called periodic frequency control (conversent control) and is performed in the following manner. 1 Periodic control cycle

Periodic control is performed after the following time has passed

(a) 30 seconds after either compressor start up or the completion of defrost operation (b) 30 seconds after frequency control by discharge temperature or by pressure limit

2 The amount of frequency change

The amount of frequency change is controlled to approximate the target value based on the evaporation temperature (Te) and condensing temperature (Tc).

- 94 -

5. Defrost operation control

(1) Starting the defrost operation

• Defrost operation is started when the pipe temperature (TH5) of -10˚C or below (-8˚C or below for P400-

type and above) has continuously been detected for 3 minutes after the integrated compressor operation time of 50 minutes have passed.

• If 10 minutes have passed since compressor start-up or since the completion of defrost operation, forced

defrost operation will start by turning on the forced defrost switch (DIPSW2-7).

• Even if the defrost prohibit timer is set to 90 minutes, the actual defrost prohibit time for the next operation

will be 50 minutes if defrosting took 12 minutes.

(2) Defrost operation

(3) Completion of defrost operation

• Defrost operation will stop when 12 minutes have past since the beginning of defrost operation or when the piping temperature (TH5) of 10˚C or above has been continuously detected for 2 minutes. (TH5 above 7˚C for 2 minitues for P400 models and above)

• Defrost operation will not stop its operation for 2 minutes once started unless the piping temperature

exceeds 25˚C within 2 minutes, in which case the operation will stop. (Above 20˚C within 2 minitues for P400 type models and above)

(4) Problems during defrost operation

• If a problem is detected during defrost operation, the operation will be stopped, and the defrost prohibition

time based on the integrated compressor operation time will be set to 20 minutes.

(5) Change in the number of operating indoor units during defrost operation

• Even when there is a change in the number of operating indoor units during defrost operation, the operation

will continue, and an adjustment will be made after the completion of the defrost operation.

• Defrost operation will be continued, even if the indoor units stop or if thermo is turned off, until it has run its

course.

Compressor frequency

Outdoor unit fan Stopped

SV1 ON

SV2 ON

SV3 (P450-P650 types only) ON

21S4a OFF

21S4b (P400-P650 types only) OFF

BC controller LEV12 G-type : 4000, GA-type : 6000

BC controller LEV34

G-type : 1000, GA-type : 2000

BC controller LEV3a

60 (fully closed)

BC controller SVM1

ON

BC controller SVM2

OFF

Model No.1 Compressor No. 2 Compressor

P200 type 72

–

P250 type 65 –

P300 type 65 –

P350 type 65 –

P400 type 114 –

P450 type (50/60Hz) 110/100 ON (50/60Hz)

P500 type (50/60Hz) 110/100 ON (50/60Hz)

P550 type (50/60Hz) 110/100 ON (50/60Hz)

P600 type (50/60Hz) 110/100 ON (50/60Hz)

P650 type (50/60Hz) 110/100 ON (50/60Hz)

- 95 -

6. Refrigerant recovery control

Refrigerant is recovered at each pipe-end connection of the BC controller to prevent the refrigerant from accumulating in the indoor units in heating operation, stopping mode (fan mode), cooling mode and heating mode with thermo off. Refrigerant recovery is also performed during cooling operation to prevent an excessive accumulation of refrigerant in the outdoor heat exchanger (P200-P400 types only).

(1) Initiation of refrigerant recovery

[Cooling only, cooling main, heating only, heating main]

Refrigerant recovery operation begins when all of the following conditions are met:

1 [Cooling only, cooling main:5minutes, heating only, heating main: 15minutes] have past since the conclu-

sion of the last refrigerant recovery and the following conditions are met

P200 :Td >95˚C P250~P400 :Td >105˚C P450~P650 :Td1 >105˚C or Td2 >105˚C

2 The mode at the pipe-end connection is not in the 3-minute restart suspension mode.

(2) Refrigerant recovery operation

1 The mode at the pipe-end connection is in the mode other than heating with thermo on.

Turn on SV C at the pipe-end connection for 30 seconds (The corresponds to each pipe-end connection number.)

2 The LED1 and LED3 openings are increased.

7. Outdoor unit fan

(1) Control method

• The air volume of outdoor unit fan is controlled by the inverter control to maintain a constant evaporation

temperature (0˚C = 0.71 MPa) during cooling operation and constant condensing temperature (49˚C = 2.88MPa) during heating operation, depending on the required capacity.

(2) Control

• Outdoor unit fan stops while the compressor is stopped (except when there is an input from snow sensor).

• The fan operates at full speed for 5 seconds after start up (except the units with high static pressure specifi-

cations).

• The outdoor unit fan stops during defrost operation.

Flow chart of initial operation mode

Start of initial operation mode

Step 1

P200

P250~P400

P450~P650

• Operation of only No.1 compressor

Exception : completed if discharge super heat reaches above 25

˚C within

5 minutes of start up.

:

Step 3

• Forced operation of only No.2 compressor

• Completed in the integrated operation time of 5 minutes

Completion of initial operation

f 50Hz and completed in the continuous integrated operation time of 20 minutes or the integrated time of 90 minutes. f 60Hz and completed in the continuous integrated operation time of 20 minutes or the integrated time of 90 minutes. For the first 30minutes f 60Hz, 30minutes and on f 85Hz. No.2 compressor not in operation. Completed in the integrated operation time of 40 minutes.

P450~P650 types

P200~P400 type

- 96 -

SV5b

ON

SV5a

ON

SV4d

OFF

SV4c

Solenoid valve

ON

SV4b

ON

SV4a

ON

Operation

pattern

1

Operation

mode

Cooling

only

Heating only

Defrosting

Cooling

main

Heating

main

Note 1 : 21S4b and 21S4c are not energized during cooling cycle and energized during heating cycle. Note 2 : SV5a and SV5b are not energized when it is open and energized when it is closed.

OFFOFFOFFONONON

2

OFFOFFOFFONONOFF

3

OFFOFFOFFOFFONOFF

4

OFFOFFOFFONOFFOFF

5

OFFOFFOFFOFFOFFOFF

6

ONONOFFONONON

1

OFFOFFOFFONONON

2

OFFOFFOFFONONOFF

3

OFFOFFOFFOFFONOFF

4

OFFOFFOFFONOFFOFF

5

OFFOFFOFFOFFOFFOFF

6

OFFOFFONOFFOFFOFF

8

ONONOFFONONON

1

ONONOFFONONON

1

OFFOFFOFFONONON

2

OFFOFFONONONON

7

OFFOFFONOFFOFFOFF

8

ONONOFFONONON

1

SV4d

OFF

SV4c

Solenoid valve

ON

SV4b

ON

SV4a

ON

Operation

pattern

1

Operation

mode

Cooling

only

Heating only

Defrosting

Cooling

main

Heating

main

OFFONONON

2

OFFONONOFF

3

OFFOFFONOFF

4

OFFONOFFOFF

5

OFFOFFOFFOFF

6

OFFONONON

1

OFFONONON

2

OFFONONOFF

3

OFFOFFONOFF

4

OFFONOFFOFF

5

OFFOFFOFFOFF

6

ONOFFOFFOFF

8

OFFONONON

1

OFFONONON

1

OFFONONON

2

ONONONON

7

ONOFFOFFOFF

8

OFFONONON

1

[P450-P650types]

[P200-P400types]

8. Control at initial startup

• If the unit is started within 2 hours of power on when the outdoor temperature is below a certain degree (below 5˚C for cooling operation and below -5˚C for heating operation), the unit will be on the stand-by mode and will not start for 30 minutes after power on. (P200 type only)

• When the unit is started for the first time, it will run the following course of operation.

(3) Patterns of outdoor unit heat exchanger capacity control

No.1 compressor

ON/OFF

No.2 compressor

ON/OFF

Completion of initial start up operation

40 minutes

Step 1 Step 3

5 minutes

- 97 -

4250 → reset → retry

→ 4240 → reset → emergency operation

Emergency operation with only No.1 compressor

✻ After a “ retry ” operation, if a

different type of error that is listed under <Inverter error> on the left is detected, an emergency operation is run after a reset.

Pattern of emergency operation mode

Error source

Outdoor unit

Codes of the errors that allow an emergency operation

Heatsink thermistor 4230 <Inverter error> Over-current break 4250 Overload protection 4240 Heatsink overheat protection 4230 Cooling fan error 4260 Bus voltage drop protection 4220 IDC sensor/circuit error 5301 VDC sensor/circuit error 4200 THHS sensor/circuit error 5110 IPM communication error 0403

Over-current protection 4108

Codes of the errors that do not allow an emergency operation

All errors other than the ones listed on the left

Operation

Emergency operation with only No.2 compressor

Problems with No.1 (INV)

Problems with No.2

< Initial start-up control of P450-P650 type units: Time chart >

9. Emergency operation mode (P450-P650 types only)

Emergency operation mode is an operation that the unit runs on a first-aid basis when problems occur with the compressors (No.1, No.2). It can be started by performing an error reset on the remote controller.

[Example1]

(1) Starting an emergency operation

1 Occurrence of error → error source and error code displays on the remote controller 2 Error reset on the remote controller 3 If the remote controller displays the type of error that allows an emergency operation, (as in above) (refer to

the table below) the unit will begin “ retry ” operation. (Same usual operation as the operation after error reset.)

4 When the same type of error is detected during the “ retry ” operation Item 3 above, perform another error

reset on the remote controller and run an emergency operation suitable for the type of the error.

(2) Finishing the emergency operation mode

[Finishing conditions] When one of the following conditions is met, emergency operation will end.

1 When an integrated operation time of compressor in cooling mode operation has reached 4 hours. 2 When an integrated operation time of compressor in heating mode operation has reached 2 hours. 3 When an error is detected that does not allow the unit to run an emergency operation.

[Control at the completion of and after an emergency operation]

• To end the operation, stop the compressor and bring up the error code on the display on the remote

controller.

• If another error reset is performed upon finishing an emergency operation, the unit will run a “ retry ”

operation again and will repeat the procedures

1 through 4 under section (1) above.

• To finish an emergency operation and to run a current-carrying operation after correcting the error, perform

a power reset.

When the compressor discharge (SH) is low, or the discharge pressure is low under heating-only, heating-main, and cooling-main modes, the capacity total of indoor units which can be operated will be restricted. (other than when there is only one indoor unit.) [Capacity total of indoor units which can be operated]

P200 type outdoor unit: P89 type or smaller P250~P650 type outdoor unit: P139 type or smaller

Mitsubishi Electric PURY-P200, PURY-P400YGM-A, PURY-P450, PURY-P500, PURY-P550 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual