Mitsubishi PUY-P200YEM-A, PUHY-P200YEM-A, PUY-P315YEM-A, PUHY-P250YEM-A, PUY-P250YEM-A Service Handbook

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AIR CONDITIONERS CITY MULTI

Models PUHY-P200YEM-A, P250YEM-A, P315YEM-A

PUY-P200YEM-A, P250YEM-A, P315YEM-A PURY-P200YEM-A, P250YEM-A

CMB-P104, P105, P106, P108, P1010, P1013, P1016V-F PUHY-200YEM-A, 250YEM-A, 315YEM-A

PUY-200YEM-A, 250YEM-A, 315YEM-A PUHY-250YEMK-A, 315YEMK-A PUHY-200YEMC-A, 250YEMC-A, 315YEMC-A

Service Handbook

Contents

¡ PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT .... 3

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

[2] Piping Machining............................................................................... 5

[3] Necessary Apparatus and Materials and Notes on Their Handling .. 6

[4] Brazing.............................................................................................. 7

[5] Airtightness Test................................................................................ 8

[6] Vacuuming ........................................................................................ 8

[7] Charging of Refrigerant..................................................................... 9

[8] Dryer ................................................................................................. 9

™ COMPONENT OF EQUIPMENT ...........................................................

[1] Appearance of Components ........................................................... 10

[2] Refrigerant Circuit Diagram and Thermal Sensor........................... 19

[3] Electrical Wiring Diagram................................................................ 24

[4] Standard Operation Data ................................................................ 29

[5] Function of Dip SW and Rotary SW................................................ 38

£ TEST RUN ............................................................................................. 43

[1] Before Test Run ..............................................................................43

[2] Test Run Method ............................................................................. 47

¢ GROUPING REGISTRATION OF INDOOR UNITS WITH REMOTE

CONTROLLER.......................................................................................

∞ CONTROL.............................................................................................. 54

[1] Control of Outdoor Unit ................................................................... 54

[2] Control of BC Controller.................................................................. 61

[3] Operation Flow Chart...................................................................... 62

[4] List of Major Component Functions ................................................ 68

[5] Resistance of Temperature Sensor................................................. 71

§ REFRIGERANT AMOUNT ADJUSTMENT ............................................

[1] Refrigerant Amount and Operating Characteristics ........................ 72

[3] Refrigerant Volume Adjustment Mode Operation ........................... 75

¶ TROUBLESHOOTING ...........................................................................

[1] Principal Parts................................................................................. 80

[2] BC Controller Disassembly Procedure ..........................................

[3] Self-diagnosis and Countermeasures Depending on the Check

Code Displayed..............................................................................1

115

[4] LED Monitor Display ..................................................................... 143

• PREPARATION, REPAIRS AND REFRIGERANT REFILLING WHEN

REPAIRING LEAKS .............................................................................

177

[3]

Location of leaks: Extension piping or indoor units (when cooling)177

[4] Location of leaks: Outdoor unit (when heating) ............................ 179

178

ª CHECK THE COMPOSITION OF THE REFRIGERANT

(R407 unit only) ......................................................................................

180

[1]

[2] Location of leaks: Outdoor unit (Cooling mode)............................ 177

Location of leaks: Extension piping or indoor units

(Heating mode)

[2] Adjustment and Judgement of Refrigerant Amount ........................ 72

- 1 -

Safety precautions

Before installation and electric work

Before installing the unit, make sure you read all the “Safety precautions”. The “Safety precautions” provide very important points regarding safety. Make sure you follow them. This equipment may not be applicable to EN61000-3-2: 1995 and EN61000-3-3: 1995. This equipment may have an adverse effect on equipment on the same electrical supply system. Please report to or take consent by the supply authority before connection to the system.

Symbols used in the text

Warning: Describes precautions that should be observed to prevent danger of injury or death to the user.

Caution: Describes precautions that should be observed to prevent 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.

Warning:

• Use the specified cables for wiring. Make the connections

securely so that the outside force of the cable is not applied to the terminals.

- Inadequate connection and fastening may generate heat and cause a fire.

• Have all electric work done by a licensed electrician according to “Electric Facility Engineering Standard” and “Interior Wire Regulations”and the instructions given in this manual and always use a special circuit.

- If the power source capacity is inadequate or electric work is

performed improperly, electric shock and fire may result.

• Securely install the cover of control box and the panel.

- If the cover and panel are not installed properly, dust or water

may enter the outdoor unit and fire or electric shock may result.

• After completing service work, make sure that refrigerant gas is not leaking.

- If the refrigerant gas leaks and is exposed to a fan heater,

stove, oven, or other heat source, it may generate noxious gases.

• Do not reconstruct or change the settings of the protection devices.

- If the pressure switch, thermal switch, or other protection

device is shorted and operated forcibly, or parts other than those specified by Mitsubishi Electric are used, fire or

explosion may result.

- 2 -

¡ PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT

Caution

Do not use the existing refrigerant piping.

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

Use refrigerant piping made of phosphorus deoxidized copper and copper alloy seamless pipes and tubes”. In addition, be sure that the inner and outer surfaces 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.

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.

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

• The refrigerator oil will degrade if it is mixed with a large amount of mineral oil.

Use liquid refrigerant to seal 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.

Do not use a refrigerant other than R407C.

• If another refrigerant (R22, etc.) is used, the chlorine in the refrigerant may cause the refrigerator oil to deteriorate.

Use a vacuum pump with a reverse flow check valve.

• The vacuum pump oil may flow back into the refrigerant cycle and cause the refrigerator oil to deteriorate.

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

• If the conventional refrigerant and refrigerator oil are mixed in the R407C, the refrigerant may deteriorated.

• If water is mixed in the R407C, the refrigerator oil may deteriorate.

• Since R407C does not contain any chlorine, gas leak detectors for conventional refrigerants will not react to it.

Do not use a charging cylinder.

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

Be especially careful when managing the tools.

• If dust, dirt, or water gets in the refrigerant cycle, the refrigerant may deteriorate.

If the refrigerant leaks, recover the refrigerant in the refrigerant cycle, then recharge the cycle with the specified amount of the liquid refrigerant indicated on the air conditioner.

• Since R407C is a nonazeotropic refrigerant, if additionally charged when the refrigerant leaked, the composition of the refrigerant in the refrigerant cycle will change and result in a drop in performance or abnormal stopping.

- 3 -

[1] Storage of Piping Material

(1) Storage location

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.

(2) Pipe sealing before storage

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.

- 4 -

[2] Piping Machining

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

Use only the necessary minimum quantity of oil.

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.

- 5 -

[3] Necessary Apparatus and Materials and Notes on Their Handling

The following tools should be marked as dedicated tools for R407C.

<<Comparison of apparatus and materials used for R407C and for R22>>

Apparatus Used Use R22 R407C

Gauge manifold Evacuating, refrigerant filling Current product Charging hose Operation check Current product Charging cylinder Refrigerant charging Current product Do not use. Gas leakage detector Gas leakage check Current product Shared with R134a Refrigerant collector Refrigerant collection R22 For R407C use only Refrigerant cylinder Refrigerant filling R22

Vacuum pump Vacuum drying Current product

Vacuum pump with a check valve Current product Flare tool Flaring of pipes Current product Bender Bending of pipes Current product Application oil Applied to flared parts Current product

Torque wrench Tightening of flare nuts Current product Pipe cutter Cutting of pipes Current product Welder and nitrogen cylinder Welding of pipes Current product Refrigerant charging meter Refrigerant charging Current product Vacuum gauge Checking the vacuum degree Current product

Symbols :

To be used for R407C only. Can also be used for conventional refrigerants.

Tools for R407C must be handled with more care than those for conventional refrigerants. They must not come into contact with any water or dirt.

Identification of dedicated use for R407C :Record refrigerant

name and put brown belt on upper part of cylinder.

Can be used by attaching an adapter with a check valve.

Ester oil or Ether oil or Alkybenzene (Small amount)

- 6 -

[4] Brazing

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 br az e 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.

- 7 -

[5] Airtightness Test

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

Halide torch R22 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 R407C.

3. Ensure that R407C is in a liquid state when charging.

Reasons :

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

2. Charging with R407C 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 R407C is sold commercially and it should be purchased.

[6] Vacuuming

1. Vacuum pump with check valve A vacuum pump with a check v alve 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.

- 8 -

[7] Charging of Refrigerant

R407C must be in a liquid state when charging, because it is a non-azeotropic refrigerant.

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. R407C is a mixture of 3 refrigerants, each with a different evaporation temperature. Therefore, if the equipment is charged with R407C gas, then the refrigerant whose ev apor ation temperature is closest to the outside temper ature is charged first while the rest of refrigerants remain in the cylinder.

Note :

• In the case of a cylinder with a syphon, liquid R407C is charged without turning the cylinder up side down. Check the type of cylinder before charging.

[8] Dryer

1. Replace the dryer when the refrigerant circuit is opened (Ex. Change the compressor, full gas leakage). Be sure to replace the dryer with a CITY MULTI (For use with R407C).

If any other product is used, the unit will be damaged.

2. Opening the refrigerant circuit after changing to a new dryer is less than 1 hour. The replacement of the dryer should be the last operation performed.

Cylin-

der

Cylin-

der

Valve

Liquid

- 9 -

™ COMPONENT OF EQUIPMENT

[1] Appearance of Components

Outdoor unit

• PUHY-P200, 250, 315YEM-A

Propeller fan

Accumlator

CSC

SCC

4way valve

Dryer

Compressor

Fan motor

Heat exchanger

Control box

- 10 -

• PURY-P200·250YEM-A

Propeller fan

Accumulator

CSC

4way valve

Dryer

Compressor

Fan motor

Heat exchanger

Control box

- 11 -

• PUHY-200, 250, 315YEM(K,C)-A

Propeller fan

Fan motor

Heat exchanger

Control box

Accumulator

SCC

4way valve

Compressor

- 12 -

Controller Box

FANCON board

ACCT

INV board

MAIN board

Noise filter

Choke coil (L2)

Terminal block TB1A Power Source

Terminal block TB7 Transmission (Centralized control)

Terminal block TB3 Transmission

Inteligent Power Module (IPM)

G/A board

DCCT

Diode stack (DS)

Magnetic contactor (52C)

Capacitor (C2, C3) (Smoothing capacitor)

- 13 -

MAIN board

• PUHY / PURY

CN51 Indication distance 3-4 Compressor ON/OFF 3-5 T rouble

CNRS3 Serial transmission to INV board

CN3D

SW1

CNTR CNFC1

CNVCC4 Power source for control(5V)

CN20 Power supply

3 L1 1 N

SW3

SW4

SW2 SWU2

SWU1

CNS1 CNS2 CN40 CN41 CNVCC3

Power Source for control

1-2 30V 1-3 30V 4-6 12V 5-6 5V

CN3S

CN3N

LD1 Service LED

SWU3

CNTYP1

- 14 -

INV board

CNDR2 Out put to G/A board

CNTH

CNCT DCCT

CN15V2 Power supply

CNFG Frame grounding

for IPM control

CNCT2 ACCT

CNAC2 I Power source 1 L2 3 N 5 G

CN52AC Control for 52C

CNRS2CN FAN

Control for MF1

Serial transmission to MAIN board

SW1

CNVDC 1-4 DC-560V

CNVCC4 Power supply (5V)

CNL2 Choke coil

CNVCC2 Power supply

1-2 30V, 1-3 30V 4-6 12V, 5-6 5V

- 15 -

FANCON board

CNFAN

CNPOW

CNFC2

CN15V1

CNDR1

CNIPM1

G/A board

Terminal for signal grounding

CNDC1 CNDC2

- 16 -

- 17 -

RELAY 10 board

RELAY 4 board

- 18 -

BC controller

SW4 SW5 SW2 SW1

CN12 Power supply

1 EARTH 3 N 5 L

CN02 M-NET transmission

CN03

CNTR

63HS

63LS

63H

ST4

SV1

SV3

SV4

BV2

ST3

ST2

TH7

TH1

TH6

TH8

TH2

CP4Drier ST10

ST9

TH5

SCC

LEV1

Comp

Accumulator

ST7

ST6

CP1

CP3

ST8

ST5

O/S

Indoor units

CJ1 CJ2

BV1

ST1

[2] Refrigerant Circuit Diagram and Thermal Sensor

1PUHY-P200/250/315YEM-A

- 19 -

2PUY-P200/250/315YEM-A

63HS

63LS

63H

ST4

SV1

SV3

SV4

BV2

ST3

ST2

TH7

TH1

TH6

TH8

TH2

CP4Drier ST10

ST9

TH5

SCC

LEV1

Comp

Accumulator

ST7

ST6

CP1

CP3

ST8

ST5

O/S

Indoor units

CJ1 CJ2

ST1

BV1

- 20 -

3 PURY-P200/250YEM-A

TH23

TH21

TH22

LEV

SVC

SVA SVB

Indoor units

BC controller

CMB-P104V-F

Gas/liquid separator

63HS1

LEV1

63HS3

LEV3

TH12

TH11

TH15

TH16

: Solenoid valve : Orifice : Capillary : Check valve

: Thermal sensor

: Strainer SP : Service port ACC : Accumulator

CP1

SV1

ST3

TH1

TH2

TH6

TH7

CP2 ST4

Drier

HEXf1

HEXf2

HEXf3

HEXb

CS circuit

Comp

Accumulator

ST7

ST6

O/S

CJ1

63HS

63H

ST2

21S4

ST8

63LS

CV2

CV3

CV7

ST1

BV1

SV3 SV4 SV5 SV6

CV5

Orifice

CV6

CV8 CV9 CV10

TH5

BV2

CV4

ST9

ST10

ST11

ST5

Check Valves Block

Solenoid Valves Block

CJ2

- 21 -

4 PUHY-200/250/315YEM(K,C)-A

63HS

63LS

63H

ST4

SV1

BV2

ST3

ST2

TH7

TH1

TH6

TH8

TH5

SCC

LEV1

Comp

Accumulator

ST7

ST6

CP1

CP3

ST8

O/S

Indoor units

CJ1 CJ2

BV1

ST1

- 22 -

5PUY-200/250/315YEM-A

63HS

63LS

63H

ST4

SV1

BV2

ST3

ST2

TH7

TH1

TH6

TH8

TH5

SCC

LEV1

Comp

Accumulator

ST7

ST6

CP1

CP3

ST8

O/S

Indoor units

CJ1 CJ2

ST1

BV1

- 23 -

[3] Electrical Wiring Diagram

1 PU(H)Y-(P)200·250·315YEM(K,C)-A

Noise Filter

Terminal Block

Blue

Black

White

Red

Blue

Black

Red

White

TB1B

BOX BODY

High pressure switch

Crank case heater (Compressor)

circuit

detection

CN34 (6P)

6 5 4 3 2 1

1 2 3

CN38 (3P)

X10

X04

21S4

63H

(3P)

CN32

CH1

SV1

X01

X02

(3P)

CNS2

(2P)

CNS1

13 112

3 2 1

(3P)

CN33

CN36 (6P)

6 5 4 3 2 1

X06 X07

SV3

SV4

L1L2L3

ACCT

-W

BOX BODY

BOX BODY THHS

Diode stack

Blue

Red

White

Black

Brown

Red

BOX BODY

(INV board)

Power circuit board

MF1

(2P)

CNFG

(2P)

CNL2

(14P)

CN15V2

(3P)

CNTR

(3P)

CNFAN

(7P)

CNRS3

(6P)

CNVCC2

(6P)

CNVCC3

(2P)

CNVCC4

(7P)

CNRS2

X10

X01

X02

52C

1 2 3 4 5 6 7

1 2

938716

21432

Black

Red

Motor

(Compressor)

MC1

White

CNTR1

1A F

250VAC

T01

DCL

52C

ZNR4

2A F

250VAC

4:Compressor ON/OFF 5:Trouble

12V

(2P)

CNTH

(4P)

CNVDC

4321

(4P)

CNCT

(3P)

CN52CAC

(3P)

CNX10

(5P)

CNAC21

(5P)

CN51

(2P)

CNVCC4

(3P)

CN20

2A T

250VAC

F01

2A T

700VDC

F02

1 2 3 4 5 6 7

1 2

CNDC1 (4P)

123

12345

987612345

CNDR2 (9P)

14131110 12

121011 1314

54321 6789

543216789

Yel low

Orange

Purple

Black

White

Gray

1 2 3 4

UVW

Gate amp board

(G/A board)

IPM

CNDR1

(9P)

CN15V1 (14P)

Orange

Brown

CNCT2 (4P)

ACCT

-U

Green

CNDC2 (4P)

123

DCCT

BOX BODY

Fan control board (Fancon board)

(5P)

CNPOW

L3L2L1

15423

F02 250VAC 6.3A F

F03 250VAC 6.3A F

F01 250VAC 6.3A F

3 4

1 2

4 5

CNFC2 (6P)

(6P)

CNFC1

Control circuit board

(MAIN board)

(3P)

CN3D

3 1

Fan motor (Heat exchanger)

V W

3 2

CN3S (3P)

(5P)

CNFAN

CN04

(3P)

CN3N

3 1

SNOW

DEMAND NIGHT MODE OR COMPRESSOR ON/OFF

OFF

1-2

CN3N

OFF

1-3 ON

OFF

Mode Auto

Normal

changeover

HEAT COOL

DC-DC Converter

Symbol

DCL

ACCT-U,W

52C

ZNR4 Varistor

DC reactor (Power factor improvement)

Current Sensor

Magnetic contactor (Inverter main circuit)

N a m e

Fan motor (Radiator panel)MF1

Solenoid valve (Discharge--suction bypass)SV1

4--way valve

21S4

❇1

Symbol

63HS

SV3

❇2

Solenoid valve (Heat exchanger capacity control)

SV4

❇1,❇2

Solenoid valve (Heat exchanger capacity control)

LEV1

High pressure sensor

63LS Low pressure sensor

Electric expansion valve (Sub-cool coil bypass)

N a m e

Choke coil (Transmission)L2

IPM Intelligent power module

TH5

TH2

❇2

TH1

N a m eSymbol

OA temp. detect

Pipe temp. detect

liquid outlet temp. detect at Sub--cool coil

TH7

TH6

Saturation evapo. temp. detect

Discharge pipe temp. detect

Thermistor

bypass outlet temp. detect at Sub--cool coil

TH8

Symbol N a m e

N a m e

THHS Radiator panel temp. detect

Aux. relayX1~10 Earth terminal

DCCT

Current Sensor

Refer to the service handbook about the switch operations.

❇2

❇1

R20

CNTYP1

(2P)

TH6

(3P)

CNL

(3P)

CNH

(2P)

CN01

(8P)

CN02

(3P)

CN03

63LS

321

63HS

Red

White

Black

Red

White

Black

TH2

TH1

321

3213212187632112345

TH7TH5

❇

LEV1

(5P)

CNLV1

54321

TH8

PUHY-P200/250YEM-A PUY-P200/250YEM-A

PUY-200/250YEM-A

PUHY-200/250YEM-A

All exists

“❇1”

are not existed

“❇2”

are not existed

“❇1”

and

“❇2”

are not existed

Appliance

BOX BODY

Terminal Block

Controller Box

Inverter

TB3

controller

remote

Indoor and

Connect to

Yellow

Green/

Blue

Black

Red

White

TB1A

50/60Hz

3N~380/400/415V

Power source

TB7

- 24 -

2 PURY-P200·250YEM-A

Symbol

DCL

DCCT

ACCT-U,W

52C

ZNR4 Varistor

(Power factor improvement)

DC reactor Current Sensor Current Sensor

(Inverter main circuit)

Magnetic contactor

N a m e Symbol

Choke coil(Transmission)

SV1

63HS

Solenoid valve (Discharge--suction bypass)

SV3~SV6

Fan motor (Radiator panel)

MF1

4--way valve21S4

High pressure sensor Low pressure sensor

63LS

N a m e

Solenoid valve (Heat exchanger capacity control)

IPM Intelligent power module

TH5

TH2

TH1

N a m eSymbol

OA temp. detect

Pipe temp. detect

liquid outlet temp. detect

at Sub--cool coil

TH7

TH6

Saturation evapo. temp. detect

Discharge pipe temp. detect

Radiator panel temp. detectTHHS

Aux. relay

X1~10

Thermistor

Earth terminal

BOX BODY

Noise Filter

Terminal Block

Blue

Black

White

Red

Blue

Black

Red

White

TB1B

BOX BODY

Controller Box

Inverter

TB3

controller

remote

Indoor and

Connect to

Yellow

Green/

Blue

Black

Red

White

TB1A

50/60Hz

3N~380/400/415V

Power source

High pressure switch

Crank case heater (Compressor)

circuit

detection

CN34 (6P)

6 5 4 3 2 1

1 2 3

CN38 (3P)

X10

X04

21S4

63H

(3P)

CN32

TB7

CH1

SV1

X01

X02

(3P)

CNS2

(2P)

CNS1

13 112

3 2 1

(3P)

CN33

CN36 (6P)

CN37 (6P)

6 5 4 3 2 1

X06

X08

X07

SV3

SV4

SV5

SV6

L1L2L3

ACCT

-W

BOX BODY

BOX BODY THHS

Diode stack

Blue

Red

White

Black

Brown

Red

BOX BODY

(INV board)

Power circuit board

MF1

(2P)

CNFG

(2P)

CNL2

(14P)

CN15V2

(3P)

CNTR

(3P)

CNFAN

(7P)

CNRS3

(6P)

CNVCC2

(6P)

CNVCC3

(2P)

CNVCC4

(7P)

CNRS2

X10

X01

X02

52C

1 2 3 4 5 6 7

1 2

938716

21432

Black

Red

Motor (Compressor)

MC1

White

CNTR1

1A F

250VAC

T01

DCL

52C

ZNR4

2A F

250VAC

4:Compressor ON/OFF 5:Trouble

12V

(2P)

CNTH

(4P)

CNVDC

4321

(4P)

CNCT

(3P)

CN52CAC

(3P)

CNX10

(5P)

CNAC21

(5P)

CN51

(2P)

CNVCC4

(3P)

CN20

2A T

250VAC

F01

2A T

700VDC

F02

1 2 3 4 5 6 7

1 2

CNDC1 (4P)

123

12345

987612345

CNDR2 (9P)

14131110 12

121011 1314

54321 6789

543216789

Yellow

Orange

Purple

Black

White

Gray

1 2 3 4

UVW

Gate amp board

(G/A board)

IPM

CNDR1 (9P)

CN15V1 (14P)

Orange

Brown

CNCT2 (4P)

ACCT

-U

Green

CNDC2

(4P)

123

DCCT

BOX BODY

Fan control board (Fancon board)

(5P)

CNPOW

L3L2L1

15423

F02 250VAC 6.3A F

F03 250VAC 6.3A F

F01 250VAC 6.3A F

3 4

1 2

4 5

CNFC2

(6P)

CNFC1

Control circuit board

(MAIN board)

(3P)

CN3D

3 1

Fan motor (Heat exchanger)

3 2

CN3S (3P)

(5P)

CNFAN

CN04

SNOW

DEMAND NIGHT MODE OR COMPRESSOR ON/OFF

Refer to the service handbook about the switch operations.

R20

CNTYP1

(2P)

TH6

(3P)

CNL

(3P)

CNH

(2P)

CN01

(8P)

CN02

(3P)

CN03

63LS

321

63HS

Red

White

Black

Red

White

Black

TH2 TH1

321

3213212187632112345

TH7TH5

DC-DC Converter

- 25 -

Symbol explanation

F01

250VAC

6.3A F

EARTH

Fuse AC250V 6.3A F

F01

142

432

SV6C

SV6A

SV6B

234

123

234

123

SV5C

SV5A

SV5B

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

123

161514

765

142

131211

423

TerminalT1~6

Terminal block

(for Transmission)

TB02

Terminal block

(for power source)

TB01

Note:TB02 is terminal block for transmission.

Never connect power line to it.

Solenoid valve

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1

~6A

SV1

~6B

SV1

~6C

TH11,12,15,16

LEV1,3

PS1,3 Pressure sensor

Transmission line

Shield wire

~220V~240V 50/60Hz

Power source

CONT.board

LEV1

161514

131211

765

SV1C

SV1A

SV1B

CNTR

CN02

CN12

153

753

X30

X31

X32

X33

X10X9X34

X12

X11

X35

}

DC 30V

654321654321

LEV3

CNP1

123

CNP3

211234567

432

12321

CN03

CN13

CN10

CN11

CN07 CN05

TH11

TH12

TH15

TH16

PS1

PS3

22V

TB02

CN26

CN27

CN28

CN29

CN30

CN31

TB01

220

~240V

- 26 -

3 CMB-P104, P105, P106V-F

Symbol explanation

F01

250VAC

6.3A F

T7T8T9T10

EARTH

Fuse AC250V 6.3A F

F01

SV6B

SV6A

SV6C

123

234

2 34

1 2 34

SV7B

SV8B

SV9B

SV10B

SV7A

SV8A

SV9A

SV10A

SV7C

SV8C

SV9C

SV10C

131415

101112

12 11 10

915 14 13

RELAY4 Board

161514

765

142

131211

161514

765

142

131211

SV5C

SV5A

SV5B

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

SV1C

SV1A

SV1B

123

2341234

234

TerminalT1~10

Power source

}

~220V~240V 50/60Hz

TB02

TB01

Terminal block

(for Transmission)

Solenoid valve

Terminal block

(for power source)

Pressure sensor

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1

~10A

SV1

~10B

SV1

~10C

TH11,12,15,16

LEV1,3

PS1,3

Note:TB02 is terminal block for transmission.

Never connect power line to it.

Transmission line

Shield wire

CONT.board

CN38

CNTR

CN50

CN51

7654321123456

CN02

CN12

753

X30

X31

X32

X33

X10X9X34

X12

X11

X35

}

DC 30V

6 54321

LEV3 LEV1

CNP1

CNP3

234

432

12321

CN03

CN13

CN10

CN11

CN07 CN05

TH11

TH12

TH15

TH16

PS1

PS3

22V

TB02

CN26

CN27

CN28

CN29

CN30

CN31

TB01

220

~240V

7654321123456

CN35

CN32

CN33

CN34

CN39

X14

X13

X36

X37 X15 X16

X18

X17

X38

X39 X19 X20

CN52CN53

57317531753175133 3

- 27 -

4 CMB-P108, P1010V-F

Symbol explanation

EARTH

TH11,12,15,16

T8T9

T10

T16

T12

T13

T14

T15

T11

F01

250VAC

6.3A F

RELAY10 board

CONT.board

CN39

135

CN12

CNOUT3

CNOUT1

13571357135713571357135

135

753

1357 1357 1357

CNVCC2

X54

X57

X53

X52

X56

X55

CN45

CN44

CN42

CN43

X49

X50

X46

X47

X51

X48

123

8765432

CNOUT2

CNOUT4

CN41

CN40

X41

X44

X40

X43

X42

X45

CN34

CN35

X20

X18

X19

X17

X39

X38

CNVCC1

X16

X15

X37

X36 X13 X14

X30

X31

X32

X33

X10X9X34

X12

X11

X35

}

DC 30V

654321654321

LEV3 LEV1

123

CNP1

123

CNP3

211234567

432

12321

CN03

CN02

CN13

CN10

CN11

CN07 CN05

CN33

1357

CN32

TH11

TH12

TH15

TH16

PS1

PS3

22V

TB02

CN38

CN26

CN27

CN28

CN29

CN30

CN31

TB01

220

~240V

CNTR

Note1:TB02 is terminal block for transmission.

Never connect power line to it.

TB02

TB01

Terminal block

(for Transmission)

Solenoid valve

Terminal block

(for power source)

Pressure sensor

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1

~16A

SV1

~16B

SV1

~16C

TR LEV1,3

PS1,3

Shield wire

Transmission line

Power source

~220V~240V 50/60Hz

T1~16 Terminal

1233

432

SV6C

SV6A

SV6B

234

123

234

123

SV5C

SV5A

SV5B

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

123

765

142

131211

423

131211

765

SV1C

SV1A

SV1B

432 143 2 143 1432 1

432 1432 1432

1432 1

131415 101112 9 78654

487 6512 11 10 915 14 13

124

432

SV16C

SV16A

SV16B

234

123

234

123

SV15C

SV15A

SV15B

SV14B

SV14A

SV14C

SV13B

SV13A

SV13C

SV12B

SV12A

SV12C

123

161514

51423

121110

231

SV11C

SV11A

SV11B

124

161415

131112

798

654

SV10C

SV10A

SV10B

SV9C

SV9A

SV9B

SV8C

SV8A

SV8B

SV7C

SV7B SV7A

Fuse AC250V 6.3A F

F01

- 28 -

5 CMB-P1013, P1016V-F

·Cooling mode Outdoor unit

Items

PUHY-P200YEM-A

PUY-P200YEM-A

PUHY-P250YEM-A

PUY-P250YEM-A

Indoor Outdoor Quantity Quantity in operation Model Main pipe Branch pipe Total piping length

27.0/19.0 27.0/19.0

35.0/24.0 35.0/24.0 4 4

4 4

71 63 50 20 100 71 63 20

10 10 10 10 10 10 10 10

45 45

Hi Hi Hi Hi Hi Hi Hi Hi

11.7 11.7

270 420 360 250 360 270 420 250

122 150

2.00/0.55 2.08/0.54

81 80 42 44 16 16 17 17 20 20

55 44 44 20 22 13 13 20 20 14 14

0.23 0.23

10.6 9.7 14.4 13.2 380 415 380 415

Indoor unit fan notch Refrigerant volume Total current Volts Indoor unit SC (LEV1)

High pressure/Low pressure (after O/S) (before Accumulator)

Pressure

DB/WB

Set

–

A V

Pulse

MPa

˚C

Condition

Sectional temperature

Outdoor unit

LEV opening

Inlet Outlet

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

Discharge (TH1) Heat exchanger outlet (TH5)

Accumulator

Suction (Comp) CS circuit (TH2) Shell bottom (Comp) SCC outlet (TH7) Bypass outlet (TH8) LEV inlet Heat exchanger outlet

[4] Standard Operating Data

1 PU(H)Y-P200·250YEM-A

- 29 -

Outdoor unit

Items

PUHY-P200YEM-A PUHY-P250YEM-A

Indoor Outdoor Quantity Quantity in operation Model Main pipe Branch pipe Total piping length

20.0/– 20.0/–

7.0/6.0 7.0/6.0 44 44

71 63 50 20 100 71 63 20

10 10 10 10 10 10 10 10

45 45

Hi Hi Hi Hi Hi Hi Hi Hi

11.7 11.7

290 470 410 250 330 290 470 250

2.10/0.43 2.10/0.38

73 80

0 –2 20 20

42 –4 –6 33 33

34 34

60 60

0.28 0.28

11.4 10.5 15.1 13.8 380 415 380 415

Indoor unit fan notch Refrigerant volume Total current V

olts Indoor unit SC (LEV1)

High pressure/Low pressure (after O/S) (before Accumulator)

Pressure

DB/WB

Set

–

A V

Pulse

MPa

˚C

Condition

Sectional temperature

Outdoor unit

LEV opening

Discharge (TH1) Heat exchanger inlet (TH5)

Accumulator

Suction (Comp) CS circuit (TH2) Shell bottom (Comp)

Heat exchanger outlet

Heat exchanger inlet

Inlet Outlet

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

·Heating

- 30 -

2 PU(H)Y-P315YEM-A

Outdoor unit

Items

Cooling Operation Heating Operation

Indoor Outdoor Quantity Quantity in operation Model Main pipe Branch pipe Total piping length

27.0/19.0 20/

35.0/24.0 7.0/6.0 4 4

4 4

125 71 63 40 125 71 63 40

10 10 10 10 10 10 10 10

45 45

Hi Hi Hi Hi Hi Hi Hi Hi

13.7 13.7

360 270 420 330 420 240 470 380

156 0

2.15/0.52

2.1/0.36

92 85 46 0 16 –2 17 –2 20 0

5–8 50 39 24 / 12 / 20 60 14 34

0.23 0.28

18.7 17.2 19.8 18.2 380 415 380 415

Indoor unit fan notch Refrigerant volume Total current V

olts Indoor unit SC (LEV1)

High pressure/Low pressure (after O/S) (before Accumulator)

Pressure

DB/WB

Set

–

A V

Pulse

MPa

˚C

Condition

Sectional temperature

Outdoor unit

LEV opening

Inlet Outlet

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

Discharge (TH1) Heat exchanger outlet (TH5)

Accumulator

Suction (Comp) CS circuit (TH2) Shell bottom (Comp) SCC outlet (TH7) Bypass outlet (TH8) LEV inlet/Heat exchanger inlet LEV outlet/Heat exchanger outlet

- 31 -

·Cooling

3 PURY-P200·250YEM-A

Outdoor unit

Items

PURY-P200YEM-A PURY-P250YEM-A

Indoor Outdoor Quantity Quantity in operation Model Main pipe Branch pipe Total piping length

27.0/19.0 27.0/19.0

35.0/24.0 35.0/24.0 4

4 4

71 63 50 20 100 71 63 20

55555555

25 25

Hi Hi Hi Hi Hi Hi Hi Hi

11.7 11.7

330 460 430 300 410 330 460 300

2000 140 2000 150

2.00/0.55

2.08/0.54

1.9/1.9

1.98/1.98

81 80 42 44 16 16 17 17 20 20

55 44 44 20 20 14 14

0.23 0.23

380 415 380 415

10.6 9.7 14.4 13.2

Indoor unit fan notch Refrigerant volume Compressor volts Outdoor unit Indoor unit BC controller (1, 3)

High pressure/Low pressure

BC controller liquid/Intermediate

Pressure

DB/WB

Q’ty

–

V A

Pulse

MPa

˚C

Condition

Sectional temperature

LEV opening

Discharge (TH1) Heat exchanger outlet (TH5)

Accumulator

Suction (Comp) CS circuit (TH2) Shell bottom (Comp) LEV inlet Heat exchanger outlet

Inlet Outlet

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

- 32 -

·Heating Outdoor unit

Items

PURY-P200YEM-A PURY-P250YEM-A

Indoor Outdoor Quantity Quantity in operation Model Main pipe Branch pipe Total piping length

20.0/– 20.0/–

7.0/6.0 7.0/6.0 4 4

4 4

71 63 50 20 100 71 63 20

55555555

25 25

Hi Hi Hi Hi Hi Hi Hi Hi

11.7 11.7

600 950 750 400 750 600 950 400

110 700 110 800

2.10/0.43 2.10/0.38

2.00/1.77 2.00/1.67

73 80

0 –2 20 20

42 –4 –6 33 33 60 60 34 34

0.28 0.28

380 415 380 415

11.4 10.5 15.1 13.8

Indoor unit fan notch Refrigerant volume Compressor volts Outdoor unit total current Indoor unit BC controller (1, 3)

High pressure/Low pressure

BC controller liquid/Intermediate

Pressure

DB/WB

Q’ty

–

V A

Pulse

MPa

˚C

Condition

Sectional temper

ature

LEV opening

Discharge (TH1) Heat exchanger outlet (TH5)

Accumulator

Suction (Comp) CS circuit Shell bottom (Comp) Heat exchanger inlet Heat exchanger outlet

Inlet Outlet

(TH2)

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

- 33 -

·Cooling Outdoor unit

Items

PU(H)Y-200YEM-A PUHY-200YEMC-A

Indoor Outdoor Quantity Quantity in operation Model Main pipe Branch pipe Total piping length

27.0/19.0 27.0/19.0

35.0/24.0 35.0/24.0 4 4

4 4

71 63 50 20 71 63 50 20

10 10 10 10 10 10 10 10

45 45

Hi Hi Hi Hi Hi Hi Hi Hi

11.7 11.7

270 420 360 250 270 420 360 250

122 122

1.95/0.55 2.14/0.58

85 87 42 44 16 16 17 17 20 20 42 42 20 20 13 13 20 20 14 14

10.4 9.5 14.5 13.3 380 415 380 415

Indoor unit fan notch Refrigerant volume Total current Volts Indoor unit SC (LEV1)

High pressure/Low pressure (after O/S) (before Accumulator)

Pressure

DB/WB

Set

–

A V

Pulse

MPa

˚C

Condition

Sectional temperature

Outdoor unit

LEV opening

Inlet Outlet

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

Discharge (TH1) Heat exchanger outlet (TH5)

Accumulator

Suction (Comp) Shell bottom (Comp) SCC outlet (TH7) Bypass outlet (TH8) LEV inlet Heat exchanger outlet

4 PU(H)Y-200·250·315YEM(K,C)-A

- 34 -

Outdoor unit

Items

Indoor Outdoor Quantity Quantity in operation Model Main pipe Branch pipe Total piping length

PUHY-250YEMC-A

PU(H)Y-250YEM-A

PUHY-250YEMK-A

PU(H)Y-315YEM-A PUHY-315YEMK-A PUHY-315YEMC-A

27.0/19.0 27.0/19.0

35.0/24.0 35.0/24.0 4 4

4 4

71 63 50 20 125 71 63 40

10 10 10 10 10 10 10 10

45 45

Hi Hi Hi Hi Hi Hi Hi Hi

11.7 13.7

360 270 420 250 360 270 420 330

150 156

2.16/0.58 2.08/0.52

86 96 42 46 16 16 17 17 20 20 42 42 20 24 13 12 20 20 14 14

19.6 18.0 19.9 18.2 380 415

27.0/19.0

35.0/24.0 4 4

71 63 50 20

10 10 10 10

Hi Hi Hi Hi

11.7

360 270 420 250

150

2.02/0.54

84 42 16 17 20 42 20 13 20 14

14.1 12.9 380 415 380 415

Indoor unit fan notch Refrigerant volume Total current Volts Indoor unit SC (LEV1)

High pressure/Low pressure

(after O/S)(before Accumulator)

Pressure

DB/WB

Set

–

A V

Pulse

MPa

˚C

Condition

Sectional temperature

Outdoor unit

LEV opening

Inlet Outlet

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

Discharge (TH1) Heat exchanger outlet (TH5)

Accumulator

Suction (Comp) Shell bottom (Comp) SCC outlet (TH7) Bypass outlet (TH8) LEV inlet Heat exchanger outlet

·Cooling

- 35 -

·Heating Outdoor unit

Items

PUHY-200YEM-A PUHY-200YEMC-A

PUHY-250YEM-A PUHY-250YEMK-A PUHY-250YEMC-A

Indoor Outdoor Quantity Quantity in operation Model Main pipe Branch pipe Total piping length

20.0/– 20.0/–

7.0/6.0 7.0/6.0 44 44

71 63 50 20 100 71 63 20

10 10 10 10 10 10 10 10

45 45

Hi Hi Hi Hi Hi Hi Hi Hi

11.7 11.7

290 470 410 250 330 290 470 250

2.04/0.43 2.04/0.38

77 84

0 –2 20 20 42

31 31

34 34

60 60

11.2 10.2 14.8 13.5 380 415 380 415

Indoor unit fan notch Refrigerant volume Total current V

olts Indoor unit SC (LEV1)

High pressure/Low pressure (after O/S) (before Accumulator)

Pressure

DB/WB

Set

–

A V

Pulse

MPa

˚C

Condition

Sectional temperature

Outdoor unit

LEV opening

Discharge (TH1) Heat exchanger inlet (TH5)

Accumulator

Suction (Comp) Shell bottom (Comp)

Heat exchanger outlet

Heat exchanger inlet

Inlet Outlet

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

- 36 -

Outdoor unit

Items

PU(H)Y-315YEM-A PUHY-315YEMK-A PUHY-315YEMC-A

Indoor Outdoor Quantity Quantity in operation Model Main pipe Branch pipe Total piping length

20.0/–

7.0/6.0 4 4

125 71 63 40

10 10 10 10

Hi Hi Hi Hi

13.7

360 270 420 330

2.00/0.38

–2 –2

18.2 16.6 380 415

Indoor unit fan notch Refrigerant volume Total current V

olts Indoor unit SC (LEV1)

High pressure/Low pressure (after O/S) (before Accumulator)

Pressure

DB/WB

Set

–

A V

Pulse

MPa

˚C

Condition

Sectional temperature

Outdoor unit

LEV opening

Discharge (TH1) Heat exchanger inlet (TH5)

Accumulator

Suction (Comp) Shell bottom (Comp)

Heat exchanger outlet

Heat exchanger inlet

Inlet Outlet

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

·Heating

- 37 -

1 PU(H)Y-P200·250·315YEM-A

Switch Function

Function according to switch operation Switch set timing

When off When on When off When on

SWU

SW1

SW2

SW3

SW4

1~2

1~8

9~10

4 5

5 6

8 9

Unit address setting Refrigerant model

For self diagnosis/ operation monitoring

–

Centralized control switch

Deletion of connection information.

Deletion of error history.

Refrigerant amount adjustments

–

Disregard ambient air sensor errors, liquid overflow errors. Forced defrosting

Defrost prohibited timer

– –

SW3-2 Function valid/ invalid Indoor unit test operation

Defrosting start temperature of TH Defrosting end temperature of TH5. Opening angle of IC except when heater thermostat is ON during defrosting.

–

Pump down Target Tc (High pressure)

in Heating

–

Models

Models SW4-2 Function valid/

invalid Configuration compensation value

–

Set on 51~100 with the dial switch.

LED Monitering Displa

See Note2.

R407C R22

–

Centralized control not connected. Storing of refrigeration system connection information.

–

Ordinary control

–

Errors valid.

Ordinary control

39 min.

– –

SW3-2 Function invalid

Stop all indoor units.

(no operation)

–

Ordinary control

49˚C

–

Invalid

–

Centralized control connected. Deletion of refrigeration system connection information. Deletion

Adjustment operation

–

Disregard errors.

Start forced defrosting.

90 min.

– –

SW3-2 Function valid

All indoor units test operation ON.

–7˚C

For 2minutes.For 2minutes.

2000

–

Pump down

53˚C

–

Valid

–

Before power is turned on.

During normal operation when power is on. Should be set on OFF. Before power is turned on.

Before power is turned on.

During normal operation when power is on.

During normal operation when power is on (only when switching from OFF/ON)

–

During normal operation when power is on.

During normal operation when power is on. (Except during defrosting)

– –

During normal operation when power is on. When SW3-1 is ON after power is turned on. During normal operation when power is on. During normal operation when power is on. (Except during defrosting)

–

During normal operation (only when switching from OFF/ON) During normal operation when power is on.

– –

Before power is turned on.

During normal operation when power is on. When SW4-1 in ON.

– ––– – ––– – ––– –

Night mode/Step demand

SWU3

R407C

Exist

R407C

Different unit model error

(7130)

Not exist

Different unit model error

(7130)

R22

TH2

Night mode

PUHY-(P)YEM-A PUY-(P)YEM-A

Step demand

During normal operation when power is on.

––– –

During normal operation when power is on.

10 minutes or more after compressor starts.

Note 1

Note 2

• SWU1~2=00 when shipped from the factory. Other factory settings are indicated by shaded portions.

• If the address is set from 01 to 50, it automatically becomes 100.

•

The refrigerant model is recognized with SW3 and TH2.

Changes as shown below by on off change 0% 3%

6% 9% 12% –6% –3% 0%

4 5 6 7 8 9

[5] Function of Dip SW and Rotary SW

(1) Outdoor unit

Before power is turned on.

SW3-9

OFF

OFF P200YEM-A P315YEM-A

P250YEM-A

–

SW3-10

10˚C15˚C

– 10˚C

- 38 -

2 PURY-P200·250YEM-A

Switch Function

Function according to switch operation Switch set timing

When off When on When off When on

SWU

SW1

SW2

SW3

SW4

1~2

1~8

9~10

4 5 6

5 6

8 9

Unit address setting

For self diagnosis/ operation monitoring

–

Centralized control switch

Deletion of connection information.

Deletion of error history.

–

Disregard ambient air sensor errors, liquid overflow errors. Forced defrosting

Defrost prohibited timer

– –

SW3-2 Function valid/ invalid Indoor Unit Test operation

Defrosting start temperature of TH7. Defrosting end temperature of TH5 and TH7.

–

Pomp down operation

Target Tc (High pressure) at Heating

– –

Models SW4-2 function valid/ Invalid Configuration compensation value

–

Set on 51~100 with the dial switch.

LED monitering display

–

Centralized control not connected. Storing of refrigeration system connection information.

–

Errors valid.

Ordinary control

43 minutes.

– –

SW3-2 Function invalid

Stop all indoor units.

–10°C

For 2minutes. For 2minutes.

°C

–

Invalid

49˚C

– –

Model P200

Invalid

–

Centralized control connected. Deletion of refrigeration system connection information. Deletion

–

Disregard errors.

Start forced defrosting.

90 minutes.

– –

SW3-2 Function valid

All indoor units test operation ON.

–7°C

15°C

–

Valid

53˚C

– –

Model P250

Valid

–

Before power is turned on.

During normal operation when power is on. Should be set on OFF. Before power is turned on.

Before power is turned on.

During normal operation when power is on.

–

––– –

During normal operation when power is on.

During normal operation when power is on. (Except during defrosting)

– –

During normal operation when power is on. When SW3-1 is ON after power is turned on. During normal operation when power is on. During normal operation when power is on. (Except during defrosting)

–

During compressor stop when power is on. During normal operation when power is on.

– –

Before power is turned on. During normal operation when power is on. when SW4-1 in ON.

–

During normal operation when power is on.

10 minutes or more after compressor starts.

Note:

• SWU1~2=00 when shipped from the factory. Other factory settings are indicated by shaded portions.

• If the address is set from 01 to 50, it automatically becomes 100.

Changes as shown below by on off change 0% 3% 6% 9% 12% –6%

–3% 0%

4 ––– – 5 ––– – 6 ––– – 7 8 ––– – 9 ––– –

10 ––– –

Night mode/Step demand Night mode

Step demand

During normal operation when power is on.

R407C R22

Before power is turned on.

SWU3

R407C

Exist

R407C

Different unit model error

(7130)

Not exist

Different unit model error

(7130)

R22R22

TH2

•

The refrigerant model is recognized with SW3 and TH2.

Refrigerant model

- 39 -

3 PU(H)Y-200·250·315YEM(K,C)-A

Switch Function

Function according to switch operation Switch set timing

When off When on When off When on

SWU

SW1

SW2

SW3

SW4

1~2

1~8

9~10

4 5

5 6

Unit address setting Refrigerant model

For self diagnosis/ operation monitoring

–

Centralized control switch

Deletion of connection information.

Deletion of error history.

Refrigerant amount adjustments

–

Disregard ambient air sensor errors, liquid overflow errors. Forced defrosting

Defrost prohibited timer

– –

SW3-2 Function valid/ invalid Indoor unit test operation

Defrosting start temperature of TH Defrosting end temperature of TH5. Opening angle of IC except when heater thermostat is ON during defrosting.

–

Pump down Target Tc (High pressure)

in Heating

Models

Models SW4-2 Function valid/

invalid

–

Set on 51~100 with the dial switch.

LED Monitering Displa

R407C R22

–

Centralized control not connected. Storing of refrigeration system connection information.

–

Ordinary control

–

Errors valid.

Ordinary control

39 min.

– –

SW3-2 Function invalid

Stop all indoor units.

– 6°C

10°C

(no operation)

–

Ordinary control

49˚C

Invalid

–

Centralized control connected. Deletion of refrigeration system connection information. Deletion

Adjustment operation

–

Disregard errors.

Start forced defrosting.

90 min.

– –

SW3-2 Function valid

All indoor units test operation ON.

–3°C

15°C

For 2minutes.For 2minutes.

2000

–

Pump down

53˚C

Valid

–

Before power is turned on.

During normal operation when power is on. Should be set on OFF. Before power is turned on.

Before power is turned on.

During normal operation when power is on.

During normal operation when power is on (only when switching from OFF/ON)

–

During normal operation when power is on.

During normal operation when power is on. (Except during defrosting)

– –

During normal operation when power is on. When SW3-1 is ON after power is turned on. During normal operation when power is on. During normal operation when power is on. (Except during defrosting)

–

During normal operation

(only when switching from OFF/ON) During normal operation when power is on.

8 ––– –

––– –

–

Before power is turned on.

During normal operation when power is on.

– ––– – ––– – ––– –

Night mode/Step demand

SWU3

R407C

Exist

R407C

Different unit model error

(7130)

Not exist

Different unit model error

(7130)

R22

TH2

Night mode

PUHY-(P)YEM-A PUY-(P)YEM-A

Step demand

During normal operation when power is on.

––– –

During normal operation when power is on.

10 minutes or more after compressor starts.

Note 1

• SWU1~2=00 when shipped from the factory. Other factory settings are indicated by shaded portions.

• If the address is set from 01 to 50, it automatically becomes 100.

•

The refrigerant model is recognized with SW3 and TH2.

4 5 6 7 8 9

Before power is turned on.

See Note2.

Note 2

SW3-10

OFF

200YEMK-A

250YEM(K,C)-A

315YEM(K,C)-A

200YEMC-A

SW3-9

- 40 -

(2) Indoor unit

DIP SW1, 3

Model P71 P80 P100 P125 P140 P200 P250 Capacity (model name) code

14 16 20 25 28 40 50

SW2 setting

Model P20 P25 P32 P40 P50 P63 Capacity (model name) code

45 681013

SW2 setting

OFF

Note 1: The shaded part indicates the setting at factory shipment. (For the SW not being shaded, refer to the

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

table belo

Note 3: The DipSW setting is only effective during unit stopping (remote controller OFF) for SW1,2,3 and 4 commonly

and the power source is not required reset.)

w.)

Setting of DIP SW2

Indoor unit inlet

None

100h

Ineffective Fan output display At stationary heating

Very low speed

SW1-7 setting

Ineffective

Heat pump

None

None None

1st setting

Down blow B, C

Effective

–

Effective

– –

Built in remote controller

Provided

2500h

Effective

Thermo. ON signal display

Always at heat.

Low speed

Set airflow

Effective

Cool.only

Provided

Provided Provided

2nd setting

Horizontal

–

Ineffective

– –

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 V Vane first angle

ane angle set for cooling

–

Heating 4deg up

– –

Alw

PLFY-VLMD-B only

ays ineffective for PKFY-P.VAM

Not provided for PKFY-P.VAM Provided for PLFY-P.VGM (ON) setting

Always down blow B,C for PKFY-P.VAM Horizontal (ON) setting for PLFY-P. VLMD-A

Ineffective (ON) setting for floor standing

SW1

SW3

1 2 3 4 5 6 7 8

3 4 5

7 8 9

Switch SW name

Operation by SW

Switch set timing

OFF ON OFF ON

Remarks

At unit stopping

(at remote

controller OFF)

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

Model

Switch

SW1

SW3

3 6 7 3 4 6 8

PLFY-P

VAM-A(2)

OFF OFF

VLMD-B

VKM-A

OFF

OFFONON

PEFY-P

VML-A VMH-A

20~80VMM-A

100~140VMM-A

OFF

OFF ON

OFF OFF

OFF

ON OFF

ON OFF ON

OFF

PDFY-P

PFFY-P

PCFY-P

PKFY-P

VM-A

VLRM-A, VLEM-A

OFF

VGM-A

PMFY-P

VBM-A

VAM-A VGM-A

OFF OFF

OFF

- 41 -

Ceiling height 3 3.5 m 2 2.8 m 1 2.3 m

Switch Function Operation by switch Switch set timing

SWA

SWB

SWC

Ceiling height setting

External static pressure setting

For options

Setting of air outlet opening

Airflow control

(PLFY-P-VKM-A) (PCFY-P-VGM-A)

(PLFY-P125VLMD-B)

(PLFY-P-VKM-A)

(PLFY-P-VKM-A, PCFY-P-VGM-A, PKFY-P-VGM-A, PDFY-P-VM-A)

❇

The ceiling height is changed by SWB setting.

❇

As this switch is used by interlocking with SWC, refer to the item of SWC for detail.

SWA

SWB

123

2-way 3.5 m 3.8 m 3.8 m 3-way 3.0 m 3.3 m 3.5 m 4-way 2.7 m 3.0 m 3.5 m

❇

Set to the option to install the high efficiency filter

Always after powering

2-way

4-way

3-way

Option

Standard

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

100Pa

50Pa 30Pa

❇

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

Setting of DIP SW4 Setting of DIP SW5

12345

ON OFF ON OFF

OFF

OFF OFF ON

ON OFF OFF

OFF

OFF ON OFF ON OFF

OFF

OFF ON ON

–

– –

– – –

––

–

–––

– – – –

– –

ON ON

OFF OFF

OFF

OFF OFF OFF

–

ON ON ON

–

OFF OFF OFF

–

ON OFF OFF

–

OFF OFF ON

–

ON ON ON OFF

PMFY-P-VBM-A PLFY-P125VLMD-B PDFY-P20 ~ 80VM-A PLFY-P40 ~ 63VKM-A PLFY-P80 ~ 125VAM-A(2) PCFY-P-VGM-A PKFY-P-VGM-A PKFY-P-VAM-A PEFY PLFY-P20~100VLMD-B

-P20 ~ 80VMM-A

PFFY-P-VLEM-A, P-VLRM-A PEFY-P20 ~ 32VML-A PEFY-P40 ~ 140VMH-A PEHY-P200·250VMH-A

PDFY-P100·125VM-A PEFY-P100 ~ 140VMM-A

Model Circuit board used

SW4

Phase control

Relay selection

220V 240V

- 42 -

£ TEST RUN

[1] Before Test Run

(1) Check points before test run

1 Neither refrigerant leak nor loose power source/ transmission lines should be found.

2 Confirm that the resistance between the power source terminal block and the ground exceeds 2MΩ by measur-

ing it with a DC500V megger. Do not run if it is lower than 2MΩ. Note) Never apply the megger to the MAIN board. If applied, the MAIN board will be broken.

3 Confirm that the Ball valve at both gas and liquid sides is being fully opened.

Note) Certainly close the cap.

45Be sure that the cr

Prior to Ver.E

The number of indoor units and the total number of remote controllers id displayed within the parenthesis ( ).

16 (32) 16 (32)

200 or lower

200 or higher

After Ver.F

20 (40) 16 (32)

(

❇

1) Capability of the connected indoor units

Number of connected indoor units that

can be connected without a RP.

Remote controller type

Remote controller PAR-F 25MA

ankcase heater has been powered by turning the main power source on at least 12 hours

before starting the test run. The shorter powering time causes compressor trouble.

(2) Caution at inverter check

Because the inverter power portion in outdoor unit electrical part box have a lot of high voltage portion, be sure to follow the instructions shown below.

During energizing power source, never touch inverter power portion because high voltage (approx. 580V) is applied to inverter power portion.

When checking,

Shut off main power source, and check it with tester, etc.

Allow 10 minutes after shutting off main power source.

Open the MAIN board mounting panel, and check whether voltage of both ends of electrolytic capacitor is 20V or less.

If any of the power supply wires (L1, L2, L3, N, ) are mistakenly connected, it is possible to damage the unit. Please exercise caution.

A transmission booster (RP) is required when the number of connected indoor unit models in a cooling system exceeds the number of models specified in the chart below. Note: The maximum number of units that can be controlled is determined by the indoor unit model, the type of

remote controller and their capabilities.

(

❇

1) If even one unit that is higher than 200 exists in the cooling system, the maximum capacity will be “200 or higher”.

❇

Please refer to the installation manual for more details.

❇

Before turning power on to the outdoor unit, first turn on the transmission booster. (If the outdoor unit are mistakenly

turned on first, turn on the transmission booster and then reset the outdoor unit power.)

- 43 -

(3) Check points for test run when mounting options

(4) Attention for mounting drain water lifting-up mechanism

Check point

Local remote controller displays code No. “2503”, and the mechanism stops.

No overflow from drain pan. Drain water comes out by operations of

drain pump. Sound of pump operations is heard, and

drain water comes out. No water leakage from connecting

portions of water piping. Water is supplied to water supply tank,

and float switch is operating.

Built-in optional parts Mounting of drain

water removing mechanism

Mounting of permeable film humidifier

Content of test run

Release connector of pump circuit, check error detection by pouring water into drain pan water inlet.

After that, connect connector of circuit.

Check pump operations and drainage status in cooling (test run) mode.

Check humidifier operations and water supply status in heating (test run) mode.

Result

Work

Disassembling and assembling of drain water removing mechanism

Mounting of float switch

Electric wiring

Float switch moves smoothly. Float switch is mounted on

mounting board straigh and

without deformation.

Float switch has no contact with

copper pipe. Wiring procedure is exactly followed. Connector portion is tightly hooked.

Content of test run

Lead wire from the control box is not damaged.

Rubber cap is properly inserted into drain water outlet of the drain pan?

Insulation of gas and liquid pipe is dealt with as shown in the right figure?

Drain pan and piping cover are mounted without gap?

Drain pan hooked on cut projection of the mechanism?

Float switch is installed without contacting the drain pan?

No mistakes in wiring? Connectors connected securely and

tightly? No tension on lead wire when sliding

on control box?

1 2

Check point Result

Insulation pipe

No gap

- 44 -

- 45 -

(5) Check points for system structure

ex. PURY-P200YEM-A

Check points from installation work to test run.

Trouble

Not operate.

Not cool (at cooling). Not heat (at heating).

Not cool, not heat, error stop. Condensation drip in piping. Not cool, not heat, error stop.

Water leak, condensation drip in drain piping.

Error stop, not operate.

Electric shock. Error stop, not operate. Some electric parts should be damaged.

Classification

Installation and piping

Power source wiring

Portion

Check item

Instruction for selecting combination of outdoor unit, and indoor unit followed? (Maximum number of indoor units which can be connected, connecting model name, and total capacity.)

Follow limitation of refrigerant piping length? For example, 80m or less (total length : 240m) at the farthest.

Connecting piping size of branch piping correct? Refrigerant piping diameter correct? Refrigerant leak generated at connection? Insulation work for piping properly done? Specified amount of refrigerant replenished?

Pitch and insulation work for drain piping properly done? Specified switch capacity and wiring diameter of main

power source used?

Proper grounding work done on outdoor unit? The phases of the L line (L1, L2, L3) correct? L line and N line connected correct?

Classification Transmission

line

Portion Check item

Limitation of transmission line length followed? For example, 200m or less (total length : 500m) at the farthest.

™ 1.25mm2 or more transmission line used?

(Remote controller 10m or less 0.75mm

)

£ 2-core cable used for transmission line?

Transmission line apart from power source line by 5cm or more?

∞ One refrigerant system per transmission line?

The short circuit connector is changed form CN41 to CN40 on the MAIN board when the system is centralized control? (Just one outdoor unit. Not all outdoor units.)

¶ • No connection trouble in transmission line?

• Connection of wrong remote controller line terminals?

• MA Remote controller : TB15

• M-NET Remote controller : TB5

Trouble

Erroneous operation, error stop.

Error stop in case multiple-core cable is used.

Erroneous operation, error stop. Not operate. Not operate.

Error stop or not operate. Never finish the initial mode.

System set

Before starting

Error stop or not operate.

Can not be properly set with power source turned on.

Not operate. Set temperature not obtained at

heating operations (Thermostat stop is difficult)

Error stop.

Error stop, compressor trouble.

2 3

Address setting properly done? (M-NET Remote controller, indoor unit and outdoor unit.)

Setting of address No. done when shutting off power source?

Address numbers not duplicated? Tur ned on SW3-8 on indoor unit circuit board when

mounting room thermistor sensor?

Refrigerant piping ball valve (Liquid pressure pipe, gas pressure pipe) opened?

Turn on power source 12 hours before starting operations?

STAND BY DEFROST

ERROR CODE

D A I L Y

AUTO OFF

CENTRALLY CONTROLLED

CLOCK

REMAINDER

ON OFF

˚C

1Hr.

NOT AVAILABLE

˚C

CHECK MODE

FILTER

CHECK

TEST RUN LIMIT TEMP.

ON/OFF

TEMP

FILTER

CHECK TEST

ON OFF

CLOCK

PAR-F27MEA

TIMER SET

2 31

STAND BY DEFROST

ERROR CODE

D A I L Y

AUTO OFF

CENTRALLY CONTROLLED

CLOCK

REMAINDER

ON OFF

˚C

1Hr.

NOT AVAILABLE

˚C

CHECK MODE

FILTER

CHECK

TEST RUN LIMIT TEMP.

ON/OFF

TEMP

FILTER

CHECK TEST

ON OFF

CLOCK

PAR-F27MEA

TIMER SET

Breakers

for Current

Leakage

Switch

- 46 -

[2] Test Run Method

Operation procedure

Turn on universal power supply at least 12 hours before getting started Displaying “HO” on display panel for about two minutes

2 Press

TEST RUN

button twice Displaying “TEST RUN’’ on display panel

3 Press

selection button Make sure that air is blowing out

Press

select button to change from cooling to heating operation, and vice versa Make sure that

warm or cold air is blowing out

5 Press

adjust button Make sure that air blow is changed

6 Press

or button to change wind Make sure that horizontal or downward blow is adjustable.

7 Make sure that indoor unit fans operate normally 8 Make sure that interlocking devices such as ventilator operate normally if any

9 Press

ON/OFF

button to cancel test run Stop operation

Note 1: If check code is displayed on remote controller or remote controller does not operate normally.

2: Test run automatically stops operating after two hours by activation of timer set to two hours. 3: During test run, test run remaining time is displayed on time display section. 4: During test run, temperature of liquid pipe in indoor unit is displayed on remote controller room temperature

display section.

5: When pressing

adjust button, depending on the model, “NOT AVAILABLE” may be displayed on remote

controller. However, it is not a malfunction.

6: When pressing

or button, depending on the model, “NOT AVAILABLE” may be displayed on

remote controller. However, it is not a malfunction.

- 47 -

GROUPING REGISTRATION OF INDOOR UNITS WITH M-NET REMOTE CONTROLLER

(1) Switch function

• The switch operation to register with the remote controller is shown below:

Registration/ ordinary mode selector switch

Registration/ordinar mode selection switch

Switch to assign indoor unit address

Registration switch

Confirmation switch

Delete switch

Registered mode selector switch

Switch to assign interlocked unit address

A + B

This switch selects the ordinary mode or registered mode (ordinary mode represents that to operate indoor units).

❇

To select the registered mode, press the

FILTER

switch continuously for over 2 seconds under stopping state. [Note] The registered mode can not be obtained for a while after powering. Pressing the

FILTER

switch displays “CENTRALLY

CONTROLLED”. This switch assigns the unit address for “INDOOR UNIT ADDRESS

NO.”

This switch is used for group/interlocked registration.

This switch is used to retrieve/identify the content of group and

interkloced (connection information) registered.

This switch is used to retrieve/identify the content of group and interlocked (connection information) registered.

This switch selects the case to register indoor units as group (group setting mode) or that as interlocked (interlocked setting mode).

❇

The unit address is shown at one spot for the group setting mode while at two spots for the interlocked setting mode.

This switch assigns the unit address of “OA UNIT ADDRESS NO.”

Symbol

of switch

G Registered mode

selector switch

E Confirmation switch

C Switch to assign

indoor unit address

H Switch to assign inter-

locked unit address

D Registration switch

FILTER

TEST RUN

Name Name of actual switch Description

of TEMP

of TIMER SET

CLOCK ON OFF

Registration/ ordinary mode selector switch

STAND BY DEFROST

ERROR CODE

D A I L Y

AUTO OFF

CENTRALLY CONTROLLED

CLOCK

REMAINDER

ON OFF

˚C

1Hr

NOT AVAILABLE

˚C

CHECK MODE

FILTER

CHECK

TEST RUN

LIMIT TEMP.

ON/OFF

TEMP

FILTER

CHECK TEST

ON OFF

CLOCK

PAR-F27MEA

TIMER SET

F Delete switch

- 48 -

(2) Attribute display of unit

• At the group registration and the confirmation/deletion of registration/connection information, the type (attribute) of the unit is displayed with two English characters.

Display Type (Attribute) of unit/controller

Indoor unit connectable to remote controller Outdoor unit

Local remote controller System controller (MJ)

[Description of registration/deletion/retrieval]

• The items of operation to be performed by the remote controller are given below. Please see the relating paragraph for detail.

¡ Group registration of indoor unit

• The group of the indoor units and operating remote controller is registered.

• It is usually used for the group operation of indoor units with different refrigerant system.

™ Retrieval/identification of group registration information of indoor units

• The address of the registered indoor units in group is retrieved (identified).

£ Retrieval/identification of registration information

• The connection information of any unit (indoor/outdoor units, remote controller or the like) is retrieved (identified).

¢ Deletion of group registration information of indoor units

• The registration of the indoor units under group registration is released (deleted).

∞ Deletion of the address not existing

• This operation is to be conducted when “6607” error (No ACK error) is displayed on the remote controller caused by the miss setting at test run, or due to the old memory remained at the alteration/modification of the group composition.

Caution:

When MELANS (MJ-103MTRA for example) is being connected, do not conduct the group/pair registration using the remote controller. The group/pair registration should be conducted by MELANS. (For detail, refer to the instruc-. tion exclusively prepared for MELANS.)

OA Processing Lossnay

- 49 -

(3) Group registration of indoor unit

1) Registration method

• Group registration of indoor unit ........................................................................ ¡

The indoor unit to be controlled by a remote controller is registered on the remote controller.

[Registration procedure]

1 With the remote controller under stopping or at the display of “HO”, continuously press the + switch

FILTER

( A + B ) at the same time for 2 seconds to change to the registration mode. (See the figure below.)

2 Assign the indoor unit address to “INDOOR UNIT ADDRESS NO.” by operating the (Room temperature

adjustment) (C). Then press the switch (D) to register. In the figure below, the “INDOOR UNIT ADDRESS NO.” is being set

TEST RUN

to 001.

3 After completing the registration, press the + switch (A +B) at the same time for 2 seconds to

FILTER

change to the original ordinary mode (with the remote controller under stopping).

• Remote controller under stopping • “HO” under displaying

Ordinary mode

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

ERROR CODE OA UNIT ADDRESS NO

˚C

Group setting mode

• Confirm the indoor unit address No.

• Confirm the connection of the transmission line.

ERROR CODE OA UNIT ADDRESS NO

˚C

ERROR CODE OA UNIT ADDRESS NO

˚C

• Registration complete

• Registration error

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

“88” flickers indicating registration error. (when the indoor unit. registered is not existing)

2 Assign the

address (C)

1 Change to the

registration mode (A + B)

3 Press the

registration switch (D)

Remote controller

Indoor units

Group

2 + 3

ON/OFF

TEMP

FILTER

CHECK TEST

ON OFF

CLOCK

PAR-F27MEA

TIMER SET

System example

- 50 -

2) Method of retrieval/confirmation

• Retrieval/confirmation of group registration information on indoor unit ............... ™

The address of the indoor unit being registered on the remote controller is displayed.

[Operation procedure]

1 With the remote controller under stopping or at the display of “HO”, continuously press the

FILTER

+ switch (A

+ B) at the same time for 2 seconds to change to the registration mode.

2 In order to confirm the indoor unit address already registered, press

switch (E). (See figure below.) When the group

of plural sets is registered, the addresses will be displayed in order at each pressing of

switch (E).

3 After completing the registration, continuously press the

FILTER

+ switch (A + B) at the same time for 2

seconds to change to the original ordinary mode (with the remote controller under stopping).

• Retrieval/confirmation of registration information ................................................ £

The registered information on a certain unit (indoor unit, outdoor unit, remote controller or the like) is displayed.

[Operation procedure]

1 With the remote controller under stopping or at the display of “HO”, continuously press the

FILTER

+ switch (A

+ B) at the same time for 2 seconds to change to the registration mode.

2 Operate

switch (G) for the interlocked setting mode. (See figure below.)

3 Assign the unit address of which registration information is desired to confirm with the

(TIMER SET) switch (H). Then press the switch (E) to display it on the remote controller. (See figure below.) Each pressing of

switch (E) changes the display of registered content. (See figure below.)

4 After completing the retrieval/confirmation, continuously press the

FILTER

+ switch (A + B) at the same time

for 2 seconds to change to the original ordinary mode (with the remote controller under stopping).

• Registered

• No registration.

ERROR CODE OA UNIT ADDRESS NO

˚C

ERROR CODE OA UNIT ADDRESS NO

˚C

1 Press the switch for confirmation (E)

Note: Only one address will be displayed

when the registration is one even the switch is how often pressed

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

ON/OFF

TEMP

FILTER

CHECK TEST

ON OFF

CLOCK

PAR-F27MEA

TIMER SET

- 51 -

3) Method of deletion

•Deletion of group registration information of indoor unit ...................................... ¢

[Operation procedure]

1 With the remote controller under stopping or at the display of “HO”, continuously press the

FILTER

switch (A + B) at the same time for 2 seconds to change to the registration mode..

2 Press the

switch (E) to display the indoor unit address registered. (As same as ™)

3 In order to delete the registered indoor unit being displayed on the remote controller, press the

CLOCK ON OFF

(F) switch

two times continuously. At completion of the deletion, the attribute display section will be shown as “– – ”.

(See figure below.) Note: Completing the deletion of all indoor units registered on the remote controller returns to “HO” display.

4 After completing the registration, continuously press the

FILTER

+ switch (A + B) at the same time for 2

seconds to change to the original ordinary mode (with the remote controller under stopping).

ERROR CODE OA UNIT ADDRESS NO

˚C

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

1 Set the address

2 Press the switch for

confirmation (E)

• Registered

• No registration

❇

Same display will appear when the unit of “007” is not existing.

1 Press the switch for confirmation ( F)

twice continuously.

• Deletion completed

In case group registration with other indoor unit is existing

In case no group registration with other indoor unit is existing

1 + 2

“– –” indicates the deletion completed.

˚C

(Alternative

display)

˚C

(Alternative

display)

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

ON/OFF

TEMP

FILTER

CHECK TEST

ON OFF

CLOCK

PAR-F27MEA

TIMER SET

ON/OFF

TEMP

FILTER

CHECK TEST

ON OFF

CLOCK

PAR-F27MEA

TIMER SET

- 52 -

4) Deletion of information on address not existing

• Deletion of information on address not existing ...................................................∞

This operation is to be conducted when “6607” error (No ACK error) is displayed on the remote controller caused by the miss setting at test run, or due to the old memory remained at the alteration/modification of group composition, and the address not existing will be deleted. Note: The connection information (connection between indoor unit and outdoor unit) on the refrigerant system can

not be deleted. An example to delete the system controller of “250” from the indoor unit of “007” is shown below.

[Operation procedure]

1 With the remote controller under stopping or at the display of “HO”, continuously press the

FILTER

+ switch (A

+ B) at the same time for 2 seconds to change to the registration mode.

2 Oper

ate

switch (G) for the interlocked setting mode ( ii ). (See the figure below.)

3 Assign the unit address existing to “OA UNIT ADDRESS No.” with the

(TIMER SET) switch (H), and press switch (E) to call the address to be deleted. (See the figure below.) As the error display on the remote controller is usually transmitted from the indoor unit, “OA UNIT ADDRESS No.” is used as the address of the indoor unit.

4 Press the

CLOCK ON OFF

switch (F) twice. (See the figure below.)

5 After completing the deletion, continuously press the

FILTER

+ switch (A + B) at the same time for 2 seconds

to return to the original ordinary mode (with the remote controller under stopping).

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

(Alternative

display)

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

(Alternative

display)

❇

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

(Alternative

display)

❇

When both indoor unit and interlocked unit addresses are existing

Deletion of address not existing

1 Set the address (H)

3 Press the deletion switch (F) twice

• Deletion completed

1 + 2

2 Press the switch for

confirmation (E)

ON/OFF

TEMP

FILTER

CHECK TEST

ON OFF

CLOCK

PAR-F27MEA

TIMER SET

- 53 -

∞ CONTROL

[1] Control of Outdoor Unit

(1) Initial processing

• When turning on power source, initial processing of microcomputer is given top priority.

• During initial processing, control processing corresponding to operation signal is suspended. The control processing is resumed after initial processing is completed. (Initial processing : Data processing in microcomputer and initial setting of each LEV opening, requiring approx. 2 minutes at the maximum.)

(2) Control at staring

• For 3 minutes after starting, 60Hz is the upper frequency limit.

(3) Bypass, capacity control

• Solenoid valve consists of bypass solenoid valve (SV1) bypassing between high pressure side and low pressure side. The following operation will be provided.

1) Bypass solenoid valves SV1 (“open” when turned on).

Item

When starting compressor After thermost “ON is returned

and after 3 minutes restart When compressor stops in

cooling or heating mode After operation stops During defrosting operations During oil recovery opera-

tions

During 30Hz operations, at fall in low pressure or low pressure saturation temperature. (3minutes or more after starting)

When high pressure rises (Pd)

When high pressure rises (Pd) during 30Hz operations (3 minutes after starting)

SV1

ON (Open) OFF (Close)

Turned on for 4 minutes Turned on for 2 minutes

Always turned on or until HPS and LPS is within 0.2MPa.

Turned on for 3 minutes or until HPS and LPS is within 0.2MPa.

Cooling operation normally OFF and heating operation normally ON

when performing oil recovery after continuous operation at low frequency.

Ps is 0.098 MPa or less Ps is 0.196 MPa or more

Always turned on

When Pd

When Pd exceed pressure limit

When Pd is less than 1.96 MPa.

reaches 2.7MPa or more

When Pd is 2.35MPa or less 30 seconds

Compressor

Bypass solenoid valve (SV1)

(4-minute)

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

Start

Thermo. OFF

Thermo. ON

Defrosting time (

❇

Stop

- 54 -

(4) Frequency control

• Depending on capacity required, capacity control change and frequency change are performed to keep constant evaporation temperature in cooling operations, and high pressure saturation temperature in heating operation.

• Frequency change is performed at the rate of 3Hz/second as follows.

1) Frequency control starting

• 60Hz is the upper limit for 3 minutes after starting.

2) Pressure control

<PU(H)Y-(P)200·250·315, PURY-P200·250>

3) Discharge temperature control Discharge temperature (Td) of compressor is detected during operation. If the upper limit is exceeded, the frequency is reduced. (Change rate : 5Hz of the present v alue)

• 30 seconds after starting compressor, control is performed every minute.

• Operation temperature is 110˚C : Td.

4) Periodical frequency control Frequency controll is periodically performed except for the frequency controls at operation start, status change, and protection.

1 Cycle of periodical frequency control

Periodical frequency control is performed every minute after the time specified below has passed.

• 60 sec after star

• 30 sec after frequency control by discharge temperature or pressure limit

2 Amount of frequency change

The amount of frequency change is controlled corresponding to evaporation temperature and high pressure saturation temperature.

3-1 Back up of frequency control by bypass valve (PUHY-(P)200·250·315/PURY-P200·250)

During low frequency operation, frequency is backed up by turning on (opening) bypass valve (SV1).

• Cooling 3 minutes after starting compressor, bypass valve is turned on when Discharge Pressure(Pd) is higher than

2.5 MPa, and turned off when Pd is less than 2.25MPa.

• Heating

During low frequency operation,3 minutes after starting compressor, SV1 turned on when high pressure (Pd) exceeds pressure limit of 2.5MPa and turned off when Pd falls to 2.25MPa

or less .

ON OFF

2.25MPa 2.5MPa

The upper limit value for the high pressure (Pd) has been set for each frequency, when this value is exceeded, the frequency is reduced every 30 seconds.

ting compressor or 30 seconds after finishing defrostoing operations

Cooling Heating

Unit Minimum

❇

20Hz

...

TH6 20°C or TdSH 10deg.

❇

28Hz

...

TH6≤20°C and TdSH≤10deg.

––

Maximum Unit Minimum Maximum

(P)200YEM-A 20Hz (28Hz) (P)200YEM

(C)-A

20Hz

61Hz

69Hz

74Hz

66Hz

(P)250YEM(C)-A 20Hz (28Hz) 79Hz

200YEMC-A 20Hz (28Hz)

250YEMK-A 20Hz (28Hz)

(P)250YEM (K,C)-A

20Hz

(P)315YEM(K,C)-A 20Hz (28Hz) 100Hz

100Hz

86Hz

P315YEM-A 20Hz

120Hz

112Hz

3°C

37°C40°C

5°C

3°C5°C

315YEM (K,C)-A

20Hz

120Hz

91Hz

3°C5°C

Pressure limit

Compressor Frequency (Hz)

2.65MPa

2.45MPa

Max

79Hz

92Hz

37°C40°C

- 55 -

(5) Subcool coil control (electronic expansion valve <LEV1>) : PUHY-(P)200·250·315

• The amount of super heat detected from the bypass outlet temperature of subcool coil (TH8) is controlled to be within a certain range for each 30 seconds.

• The opening angle is corrected and controlled depending on the outlet/inlet temperature of subcool coil (TH5, TH7) and the discharge temperature.

• However, the valve will be closed (0) at heating and compressor stopping.

• It will fully open during defrosting.

(6) Defrost operation control

1 PU(H)Y-(P)200·250·315

1) Starting of defrost operations

•

After integrated 39 minutes : The compressor operations, defrosting operations start when – 10˚C(R407C),

– 6˚C(R22)piping temperature (TH5) is detected for 3 consecutive minutes.

• Forcible defrosting operations start by turning on forcible defrost switch (SW2-7) if 10 minutes have already elapsed after compressor star

• Defrost prohibit timer

Defrost will last a maximum of 15 minutes. Then next defrost time will be 39 minutes.

Minimum consecutive running minutes to defrost can be increaced from 39 minutes to 90 minutes by setting SW2-8 “ON”.

t or completion of defrosting operations and will last for 10 minutes.

2) Completion of defrosting operations Defrosting operations stop when 10 minutes : It has passed since start of defrosting operation, or piping temperature (TH5) reaches 10˚C or more. (Defrosting operations do not stop for 2 minutes after starting, except when piping temperature exceeds 25˚C.)

3) Defrosting prohibition Defrosting operations do not start during oil recovery, and for 10 minutes after starting compressor.

4) Trouble during defrosting operations When trouble is detected during defrosting operations, the defrosting operations stop, and defrosting prohibition time decided by integrated operation time of compressor is set to be 20 minutes.

5) Change in number of operating indoor units during defrosting operations

• In case number of operating indoor units changes during defrosting operations, the defrosting operations continue,

and control of unit number change is performed after the defrosting operations are finished.

• Even in case all indoor units stop or thermostat is turned off during defrosting operations, the defrosting operations

do not stop until expected defrosting activities are completed.

- 56 -

2 PURY-P200·250

1) Starting of defrost operations

• After integrated 43 minutes of compressor operations, defrosting operations start when –10˚C or less of piping temperature (TH7) is detected for 3 consecutive minutes.

• Defrost prohibit timer munimum from 43 minutes to 90 minutes by setting SW2-8 "ON". Defrost will last a maximum of 15 minutes, the next defrost time will be 39 minutes.

• Forcible defrosting operations start by turning on forcible defrost switch (SW2-7) if 10 minutes have already elapsed after compressor start or completion of defrosting operations and will last for 10 mins.

2) Completion of defrosting operations Defrosting operations stop when 10 minutes have passed since start of defrosting operation, or piping temperature (TH5 and TH7) reaches10˚C or more.

(Defrosting operations do not stop for 4 minutes after starting, except when piping temperature exceeds (TH5 and TH7)

25˚C.

3) Defrosting prohibition Defrosting operations do not start during oil recovery, and for 3 minutes after starting compressor.

5) Change in number of operating indoor units during defrosting operations

• In case number of operating indoor units changes during defrosting operations, the defrosting operations continue,

and control of unit number change is performed after the defrosting operations are finished.

• Even in case all indoor units stop or thermostat is turned off during defrosting operations, the defrosting operations

do not stop until e

Note 12TH5 - Y-Series

TH7 - R2-Series TdSH=Discharge Super Heat.

xpected defrosting activities are completed.

TdsH 40<TdSH 35<TdSH<40 20<TdSH<35 10<TdSH<20 TdSH<10

15°C<TH5/TH7

AL=0 AL=0 AL=0 AL=1 AL=2

20~45Hz

AL=0 AL=1 AL=1 AL=1 AL=2

Compressor

Frequency

46~70Hz

AL=0 AL=0 AL=1 AL=1 AL=2

71Hz~Fmax

AL=0 AL=0 AL=0 AL=1 AL=2

TdsH 80<TdSH 60<TdSH<80 40<TdSH<60 10<TdSH<40 TdSH<10

TH5/TH7 5°C

AL=0 AL=1 AL=1 AL=1 AL=2

TH5/TH7

5°C<TH5/TH7

15°C

AL=0 AL=0 AL=1 AL=1 AL=2

(7) Judgment of Refrigerant amount Accumulator design

Cooling

Heating

=Td-Tsg ( low pressure saturation temperature)

- 57 -

(8) Refrigerant Recovery Control

1) Start of Refrigerant recover in Heating Start of Refrigerant recover is Cooling

2) Refrigerant recovery operation in heating

3) Refrigerant recovery operating in cooling

• Refrigerant is recovered by opening LEV of the objective indoor units (indoor units under stop. fan, and cooling

Refrigerant is recovered by the opening of the indoor LEV further than the operation position for 30 seconds.

Start of Refrigerant recover in Heating

Refrigerant Recovery Control

modes, and that with heating thermostat being turned off) for 15 seconds.

• The regular capacity control of the outdoor unit and the regular LEV control of the indoor unit are not applied during refrigerant recovery operation, but are fixed with the value before the recovery operation. These controls will be conducted one minute after finishing the recovery operation.

• Defrosting operation is prohibited during the recovery operation, and it will be conducted after finishing the recovery operation.

Starts

LEV opening before change

LEV opening at refrigerant recovery (Indoor unit LEV opening 500 pulse)

Finish

15 seconds

Refrigerant recovery is performed to prevent refrigerant from accumulating in the stopping unit, the unit under cooling mode and that with heating thermostat being turned off.

Refrigerant recovery is started when all of the items below are satisfied.

• 30 minutes has passed after finishing previous

refrigerant recovery and compressor frequency is greater then 60Hz or Td less than 105°C or 15 minutes has passed since previous recovery was performed and frequency is less than 60Hz and Td is greater than 105°C.

• 15 minutes has passed from starting the

compressor.

• A1 = 0 for 3 minutes.

• 1 minute has passed from starting the compressor.

• 30 minutes has passed after finishing previous

refrigerant recovery and compressor frequency is greater than 60Hz or Td less than 105°C or 15 minutes has passed since previous recovery was performed and frequency is less than 60Hz and Td is greater than 105°C.

• Al = 0 for 3 minutes.

Start of Refrigerant recovery in Cooling

Refrigerant recovery is started when all of the items below are satisfied.

• 30 minutes has passed after finishing previous refrigerant recovery.

• Al = 0 for 3 minutes.

• Td is greater than 105°C.

There is some heating ON indoor unit

Full open the LEV of Stop mode, Fan mode and Cooling mode indoor unit for 30 seconds.

There is no heating ON indoor unit

Open the SVC for 30 seconds.

Refrigerant recovery is started when all of the items below are satisfied.

• 30 minutes has passed after finishing previous refrigerant recovery.

• Al = 0 for 3 minutes.

• Td is greater than 105°C or Pd is greater than 2.45

HPa and SCO is greater than 10°C.

(9) Control of outdoor unit fan and outdoor unit heat exchanger capacity control

PU(H)Y-(P)200·250·315

1) Control system Depending on capacity required, control outdoor fan flow rate with phase control, for maintaining evaporation temperature (0˚C) in cooling operations, and high pressure saturated temperature (49˚C) in heating operations.

2) Control

• Outdoor unit fan stops when compressor stops.

• Fan is in full operation for 5 seconds after starting.

• Outdoor unit f

• Lower the fan strength upper limit to approximately 50% when performing night mode settings.

an stops during defrosting operations.

PU(H)Y-(P)200·250

PURY-P200·250

- 58 -

Four-way valve

Compressor

Accumulator

CS circuit

TH2

LPS

Heat e

(HPS)

xchanger

Outdoor heat exchanger

Indoor heat

exchanger

Flow control

valve

(11) Circulating composition sensor (CS circuit)

(10) Outdoor unit heat exchanger capacity control

•

• The condensing temperature (Tc) and the evaporating temperature (Te) are calculated from OC, high

pressure (HPS), and low pressure (LPS).

• The compressor frequency, the outdoor fan, and others are controlled according to the codensing temperature (T c) and the evaporating temperature (Te).

• CS circuit configuration (Outline drawing)

1) Control method

PURY-P200·250

2) Control

3) Capacity control pattern

Operation mode Operation pattern

Solenoid valve

SV3

ON OFF OFF OFF OFF

ON OFF OFF OFF OFF OFF

ON OFF

SV6 OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF

ON OFF OFF OFF

ON OFF

SV5

ON ON ON

OFF

ON ON ON

OFF

ON OFF OFF

ON OFF

SV4

ON ON ON

ON OFF OFF

ON OFF OFF OFF

ON OFF

1 2 3 4 5 6 1 2 3 4 5 6 8 1 1 2 7 8 1

Full cooling

Cooling mainly

Heatling mainly

Defrosting

Full heating

• In order to stabilize the evaporation temperature during cooling and the high-pressure pressure during heating that are required in response to performance needs, the capacity of the outdoor heat exchanger is controlled by regulating the fan volume of the outdoor unit by phase control and controlling the number of fans and by using the solenoid valves to vary the number of out door heat exchangers being used.

• Fan is full operation for 5 seconds after starting.

• Outdoor unit fan stops during defrosting operations.

• Lower the fan strength upper limit to approximately 50% when performing night mode settings.

As shown in the drawing below; the CS circuit has the structure to bypass part of the gas discharged from the compressor through the capillary tube to the suction side of the compressor, exchange heat before and after the capillary tube,and produce two phase (gaseous and liquid) refrigerant at the capillary tube outlet. The dryness fraction of refrigerant at the capillary tube outlet is estimated from the temperature of low pressure two phase (gaseous and liquid) refrigerant at the capillary outlet (TH2) and the pressure (LPS) to calculate the composition of refrigerant circulating the refrigeration cycle (

OC). In this series the high-pressure liquid refrigerant temperature is calculated based on the high pressure and ambient air temperature values. It is found by utilizing the characteristic that the temperature of two phase (gaseous and liquid) R407C under a specified pressure changes according to the composition and dryness fraction (gas-liquid ratio in weight).

- 59 -

(12) Control at initial starting

• The following initial start mode will be performed when the unit is started for the first time after the power has been turned on.

Start of initial operation mode

Initial operation mode is finished.

Step 1

••The compressor operated at F≤38Hz.

–

Finished operating time reaches 5 minutes.

Step 2

••The compressor is operated at less than or equal

to F

≤

60Hz.

Operates continuously for 20 minutes and finishes.

- 60 -

Mode

Connection

2000

Superheat

control

❇

Differential

Pressure control

❇

2000

LEV1

LEV3

❇

Superheat control

Differential pressure control

–

Control every minute so that superheat amount detected by bypass inlet and oulet temperatures (TH12, TH15) stay in the specified range.

Control every minute so that detected differential pressure (PS1, PS3) stay in the specified range.

60 or more pulses are sometimes detected because of rise in liquid side pressure (PS1).

• Liquid level control

❇

• Differential pressure control

❇

Differential

Pressure control

❇

[2] Control of BC Controller

(1) Control of SVA, SVB and SVC

SVA, SVB and SVC are turned on and off depending on connection mode.

Cooling Heating Stop Defrost

SVA ON OFF OFF OFF SVB OFF ON OFF OFF

SVC ON OFF OFF OFF

(2) Control of LEV

LEV opening (sj) is controlled corresponding to operation mode as follows: (Number of pulse)

Operation mode Cooling-only Heating-only Cooling-main Heating-main Stop

❇

Please confirm that the above parts of BC controllers are color-corded and shown with the name plate inside the BC controller unit.

- 61 -

YES

Normal operations Trouble observed Stop

Start

Breaker

turned on

Set indoor ad-

dress No. to remote

controller

Operation command

Operation

mode

Error mode

Cooling-only, Heating-only, Cooling/heating mixed

Error stop

Operation

mode

Operation

mode

52C ON

[3] Operation Flow Chart

(1) Outdoor unit

Note : 1 For about 3 minutes after turning on power source, address and group information of outdoor unit, BC controller indoor unit,

and remote controller are retrieved by remote controller, during which “HO” blinks on and off on remote controller. In case indoor unit is not grouped to remote controller, “HO” display on remote controller continues blinking even after 3 minutes after turning on power source.

Note : 2 Two troub le modes included indoor unit side trouble, (BC controller trouble) and outdoor unit side trouble. In the case of indoor

unit side trouble, error stop is observed in outdoor unit only when all the indoor units are in trouble. However, if one or more indoor units are operating normally, outdoor unit shows only LED display without undergoing stop.

Note : 3 On PUHY system, operation mode conforms to mode command by indoor unit. However, when outdoor unit is under

cooling operation, the operation of indoor unit will be prohibited even by settingindoor units under operation, or indoor unit under stopping or fan mode to heating mode. Re versely when outdoor unit is being heating operation, the same condition will be commenced. On PURY system, operation mode conforms to mode command by BC controller.

Note : 4 In case BC controller issues cooling/heating mixed operation mode, outdoor unit decides operation mode of cooling-main

operation or heating-main operation.

Note : 3

Note : 2

Note : 1

Fan

“HO” blinks on the remote

controller

SC coil LEV

(PUHY) fully closed

1. 52C OFF

2. Inverter output 0Hz

3. Outdoor fan Stop

4. All solenoid valve OFF

Cooling (Cooling-

only) operations

Heating (Heating-

only) operations

Cooling-main

operations

Heating-main

operations

Operation mode command to (BC controller) outdoor unit

Error code blinks on the outdoor controller board

Error command to

BC controller (PURY only)

Error code blinks on the

remote controller

Cooling/heating mixed (only for PURY)

Note : 4

- 62 -

(2) BC controller (for PURY)

Note : 1 Two error modes include indoor unit side trouble, BC controller trouble, and outdoor unit side trouble. In the case of indoor

unit side trouble, error stop is observed in the concerned indoor unit only, and in the cases of BC controller and outdoor unit side troubles, error stop is observed in all the indoor units, BC controller, and outdoor unit.

YES

Normal operations Trouble observed Stop

Solenoid valve OFF,

LEV fully closed.

Start

Breaker

turned on

Operation command

1.Operation mode judgement (cooling-only, heating-only, cooling/heating mixed)

2.Transmission to outdoor unit

Receiving operation mode

command from outdoor unit

Error mode

Cooling-only

operations

Heating-only

operations

Cooling-main

operations

Heating-main

operations

Operation mode

Cooling/heating mixed

Note : 1

Fan

Error stop

Error code blinks on the

outdoor controller board

Error command to

BC controller

Error code blinks on the

remote controller

- 63 -

(3) Indoor unit

YES

Normal operations Trouble observed Stop

Start

Breaker

turned on

Operation SW

turned on

1. Protection function self-holding cancelled.

2. Indoor unit LEV fully closed.

Remove controller display extinguished

3-minute drain

pump ON

FAN stop

Drain pump

Error mode

Error stop

Error code blinks on the remote controller

Indoor unit LEV fully closed

Error code blinks on the outdoor controller board

Operation mode

Heating

mode

Cooling

display

Cooling mode

Dry mode

Heating

display

Fan mode

Cooling/heating automatic display

Cooling/heating automatic mode

Fan display

Dry display

Prohibition Prohibition

Heating operations

Cooling operations

Prohibition Prohibition

Cooling/heating automatic operations

Dry operation

Fan operations

Prohibition “Remote controller blinking”

Note :3Note :3 Note :3

Note :1

Note :2

Note :1

Note : 1 Indoor unit LEV fully closed : Opening 60 (41) Note : 2 Two error codes include indoor unit troub le, (BC controller trouble) and outdoor unit side trouble. In the case of indoor unit

trouble, error stop is observed in the concerned indoor unit only, and in the cases of (BC controller and) outdoor unit side troubles, error stop is observed in all the indoor units connected.

Note : 3 “Prohibition” status is observed (when several indoor units are connected to one connection, of BC controller and) when

connection mode is different from indoor unit operation mode. (Operation mode display on the remote controller blinks on and off, fan stops, and indoor unit LEV is fully closed.)

only for PURY

Error command to outdoor unit

- 64 -

(4) Cooling operation

YES

1.Inverter output 0Hz

2.Indoor unit LEV, Subcool coil bypass LEV fully closed

3.Solenoid valve OFF

4.Outdoor unit fan stop

5.BC controller solenoid valve OFF (PURY)

6.BC controller LEV fully closed (PURY)

1.Inverter frequency control

2.Indoor unit LEV, control

3.Solenoid valve control

4.Outdoor unit fan control

5.BC controller solenoid valve control (PURY)

6.BC controller LEV control (PURY)

Cooling operation

4-way valve OFF

Indoor unit fan

operations

Test run start

Thermostat ON

Normal operations Test run Stop

3-minute

restart

prevention

- 65 -

YES

(5) Heating operation

Normal operations Defrosting operations Stop Test run

1.Indoor unit fan very low speed operations

2.Inverter output 0Hz

3.Indoor unit LEV

4.Solenoid valve OFF

5.Outdoor unit fan stop

6.BC controller solenoid valve OFF (PURY)

7.BC controller LEV fully closed

8.52C off

(PURY)

1.Indoor and outdoor unit fan control

2.Inverter frequency control

3.Indoor unit LEV

4.Solenoid valve control

5.BC controller solenoid valve control (PURY)

6.BC controller LEV control

7.52C control

(PURY)

1.Indoor unit fan stop

2.Inverter defrost frequency control

3.Indoor unit LEV fully opened

4.Solenoid valve control

5.Outdoor unit fan stop

6.BC controller solenoid valve control (PURY)

7.BC controller LEV control (PUR

8.52C control

Heating operation

4-way valve ON

Defrosting

operation

Test run start

4-way valve OFF

Thermostat ON

3-minute

restart

prevention

Note : 1 When outdoor unit starts defrosting, it transmits defrost operations command to (BC controller and) indoor unit, and the

indoor unit starts defrosting operations. Similarly when defrosting operation stops, indoor unit returns to heating operation after receiving defrost end command of outdoor unit.

Note : 1

- 66 -

YES

(6) Dry operation

Normal operations Thermostat ON Stop

1.Indoor unit fan stop

2.Inverter output 0Hz

3.Indoor unit LEV

4.Solenoid valve OFF

5.Outdoor unit fan stop

6.BC controller solenoid valve OFF (PURY)

7.BC controller LEV fully closed

8.52C off

(PURY)

1.Outdoor unit (Compressor) intermittent operations

2.Indoor unit fan intermittent operations (Synchronized with compressor : low speed, OFF operations)

Dry operations

4-way valve OFF

Inlet temp. 18˚C

Note : 2

Thermostat ON

Test run start

Note : 1

Note : 1 When indoor unit inlet temperature exceeds 18˚C, outdoor unit (compressor) and indoor unit fan start intermittent operations

synchronously. Operations of outdoor unit, BC controller (PURY), indoor unit LEV and solenoid valve accompanying compressor are the same as those in cooling operations.

Note : 2 Thermostat is always kept on in test run, and indoor and outdoor unit intermittent operation (ON) time is a little longer than

normal operations.

- 67 -

Low pressure shell scroll type with capacity control mechanism Winding resistance: Each phase 0.583Ω (20˚C)

Setting

2.94MPa OFF R

120=7.465kΩ

B25/120=4057 Rt =

7.465exp{4057

( - )}

0=33kΩ

0/100=3965

Rt = 33exp{3965( - )}

-20˚C : 92kΩ

-10˚C : 55kΩ 0˚C : 33kΩ 10˚C : 20kΩ 20˚C : 13kΩ 30˚C : 8.2kΩ

0=15kΩ

B0/100=3460 Rt = 15exp{3460( - )}

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

[4] List of Major Component Functions

63HS

63LS

63H

TH1 (discharge)

TH2 (low pressure saturation temperature)

TH5 (piping temperature)

TH6 (outdoor air temperature)

TH7

TH8 (subcool coil bypass outlet temperature)

Compressor

High pressure sensor

Low pressure sensor

Pressure switch

Thermistor

Adjust refrigerant circulation by controlling operating frequency and capacity control valve with operating pressure.

1) High press. detection.

2) Frequency control and high pressure protection

1) Detects low pressure

2) Calculates the refrigerant circulation configuration.

3) Protects the low pressure

1) High pressure detection

2) High pressure protection

1) Discharge temperature detection

2) High pressure protection

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

1) Detects the saturated vapor temperature.

2) Calculates the refrigerant circulation configuration.

3) Controls the compressor frequency.

4) Controls the outdoor unit’s fan air volume.

1) Frequency control

2) Defrost control and liquid level detection at heating

1) Outdoor air temperature detection

2) Fan control, liquid level heater, and opening setting for oil return

Subcool coil bypass LEV (LEV1)

Heat exchenger inlet pipe temperature

control (subcool coil outlet temperature)

Subcool coil bypass LEV (LEV1) control

Name Application Specification Check method Object

Pressure 0~0.98MP

0.3V/0.098MPa

Vout 0.5~3.5 V

Gnd (black) Vout (white) Vc (DC5V) (red)

Pressure 0~2.94MP

0.1V/0.098MPa

Vout 0.5~3.5 V

Gnd (black) Vout (white) Vc (DC5V) (red)

Connector

273+t

Continuity check

Resistance value check

•

PU(H)Y(P)200·250·315

• PURYP200·250

• PU(H)Y(P)200·250·315

• PURYP200·250

•

PU(H)Y(P)200·250·315

• PURYP200·250

•

PU(H)YP200·250·315

• PURYP200·250

•

PU(H)Y(P)200·250·315

• PURYP200·250

•

PU(H)Y(P)200·250·315

• PURYP200·250

•

PU(H)Y(P)200·250·315

Outdoor unit

Symbol

(function)

63HS

63LS

273+120

273+0

- 68 -

Name Application Specification Check method Object

Outdoor unit

Symbol

(function)

Thermistor

Solenoid valve

Linear expansion valve

Thermistor

THHS

SV1 (discharge suction bypass)

SV3 ~ 4 SV3 ~ 6

LEV1 (SC coil)

LEV

TH21 (inlet air temperature)

TH22 (piping temperature)

TH23 (gas side piping temperature)

1) Detects the inverter cooling fin temperature.

2) Provides inverter overheating protection.

3) Controls the control box cooling fan.

1) High/low press. bypass at starting/ stopping and capacity control at low load

2)3)Discharge press. rise suppression

Capacity control and high press . rise suppression (backup for frequency control)

Control of heat exchanger capacity.

Adjustment bypass flow rate from outdoor unit liquid line at cooling.

1) Adjust superheat of outdoor unit heat exchanger outlet at cooling.

2) Adjust subcool of indoor unit heat exchanger at heating.

Indoor unit control (thermostat)

21S4a 4-way valve Changes for cooling and heating

CH1 Crank case

heater

Heating of compressor refrigerant

1) Indoor unit control (freeze prevention, hot adjust, etc.)

2) LEV control in heating operation (Subcool detection)

LEV control in cooling operation (Superheat detector)

50=17kΩ

B25/50=4170 Rt = 17exp{4170( - )}

-20˚C : 605.0kΩ50˚C : 17.0k

Ω

-10˚C : 323.3kΩ60˚C : 11.5k

Ω

0˚C : 180.9kΩ70˚C : 8.0k

Ω

10˚C : 105.4kΩ80˚C : 5.7k

Ω

20˚C : 63.8kΩ90˚C : 4.1k

Ω

30˚C : 39.9kΩ100˚C : 3.0k

Ω

40˚C : 25.7k

Ω

AC 220~240V Open at energizing and close at deenergizing

0~480 pulses

DC12V

Cord heater AC 220~240V

MC......1280Ω

.......45W

Opening of stepping motor driving valve 0~2,000 pulses

AC220~240V on cooling off heating

0 = 15kΩ

B0/100 = 3460

Rt = 15exp {3460 ( - )}

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

• Continuity check by tester

• Temperature of inlet and outlet.

Continuity check with tester for white-red-orange yellow-brown-blue

Resistance value

Continuity check with tester

check

• PU(H)Y(P)200·250·315

• PURYP200·250

•

PURYP200·250

•

PU(H)Y(P)200·250

Indoor unit

273+50

273+t

273+0

Control of heat exchanger capacity.

•

PU(H)YP200·250·315

PURYP200·250

•

PU(H)Y(P)200·250·315

PURYP200·250

PU(H)Y(P)200·250·315

- 69 -

Name Application Specification Check method Object

BC controller

Symbol

(function)

273+t

Pressure sensor

Thermistor

PS1

PS3

TH11 (liquid inlet temperature)

TH12 (bypass outlet pressure)

TH15 (bypass outlet temperature)

TH16 (bypass inlet temperature)

1) Liquid pressure (high-pressure) detection

2) LEV control

1) Intermediate pressure detection

2) LEV control

LEV control (liquid refrigerant control)

LEV control (superheat control)

LEV control (subcool control)

0=15kΩ

B0/100=3460 Rt = 15exp{3460( - )}

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

Continuity check by a tester

Same as LEV of indoor unit.

273+0

AC 220~240V Open when energized Closed when de-energized

12V DC stepping motor drive 0 to 2000 valve opening pulse

Supplies refrigerant to cooling indoor unit.

Supplies refrigerant to heating indoor unit.

Supplies refrigerant to cooling indoor unit.

Liquid level control pressure control

SVA

SVB

SVC

LEV1

LEV3

Solenoid valve

Electronic expansion valve

Pressure 0~2.94MPa Vout 0.5~3.5 V

Gnd (black) Vout (white) Vc (DC5V) (red)

Connector

PS1 PS3

- 70 -

- 71 -

§ REFRIGERANT AMOUNT ADJUSTMENT

Clarify relationship between the refrigerant amount and operating characteristics of CITY MULTI, and perform service activities such as decision and adjustment of refrigerant amount on the market.

[1] Refrigerant Amount and Operating Characteristics

The followings are refrigerant amount and operating characteristics which draw special attention.

During cooling operations, required refrigerant amount tends to increase (refrigerant in accumulator decreases) in proportion to increase in the number of operating indoor units. However, the change of increase rate is small.

During heating operations, liquid level of accumulator is the highest when all the indoor units are operating.

Discharge temperature hardly changes when increasing or decreasing refrigerant amount with accumulator filled with refrigerant.

Judged as over replenishment when temperature difference from low pressure saturation temperature (Te)

is 5 K or less.

[2] Adjustment and Judgement of Refrigerant Amount

(1) Symptom

The symptoms shown in the table below are the signs of excess or lack of refrigerant amount. Be sure to adjust refrigerant amount in refrigerant amount adjustment mode, by checking operation status, judging refrigerant amount, and performing selfdiagnosis with LED, for overall judgement of excess or lack of refrigerant amount.

Tendency of discharge temperature

During cooling operation at high ambient temperature the discharge temperature may rise.

During heating operation at low ambient the discharge temperature may rise.

The lower operating frequency is, the higher discharge temperature tends to become of deteriorated compressor efficiency.

Comparison including control system

Emergency stop at 1500 remote controller display (excessive refrigerant replenishment)

Operating frequency does not fully increase, thus resulting in insufficient capacity

Emergency stop at 1102 remote controller display (discharge temperature trouble)

Excessive refrigerant replenishment

Insufficient refrigerant replenishment

Compressor shell temperature is 10~60 K higher than low pressure saturation temperature (Te) when refrigerant amount is appropriate.

- 72 -

(2)

1) Operate all the indoor units on cooling or on heating, checking the discharge temperature, sub-cooling, low pres-

sure saturation temperature, inlet temperature, shell bottom temperature, liquid level, liquid step, etc. and rendering an overall judgment.

Judgement

Refrigerant volume tends toward insufficient.

Rifrigerant volume tends toward overcharge.

Condition 1 Outlet temperature is high. (100°C or higher) 2 Low pressure saturation temperature is extremely low. 3 Inlet superheating is high (if normal, SH = 20 K or lower). 4 Shell bottom temperature is high (the difference with the low pressure saturation

temperature is 60 K or greater)

5 Shell temperature is low (the difference with the low pressure saturation tem-

per

Liquid level AL=2 (Determined based on the extent of overheating of discharged refrigerant)

Refrigerant Volume

Checking the Operating Condition

ature is 5 K or lower).

2) Check the refrigerant volume by self-diagnosis using the LED.

Set the self-diagnosis switch (SW1) as shown below and check the past information (history) concerning the refrigerant volume.

Set SW1 as shown in he figure at right.

If LD1 lights up, it indicates the refrigerant charge abnormal delay state just before emergency stop due to refrigerant overcharge (1500).

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- 73 -

(3) Additional Refrigerant Charge Volume

At the time of shipping from the factory, the outdoor unit is charged with the amount of coolant shown in the following table, but since no extension piping is included, please carry out additional charging on-site.

Outdoor Unit Model Name Refrigerant Charge Volume 7kg 7kg 9kg

Calculation Formula Calculate the additional refrigerant volume by calculating the size of the extension liquid piping and its length (units: m).

Additional Refrigerant Volume

2: Length of ø12.7 liquid pipe (m)

3: Length of ø9.52 liquid pipe (m)

1: Length of ø19.05 liquid pipe (m)

Length of ø6.35 liquid pipe (m) r

efer to the calculation table.

In the calculation results, round up fractions smaller than 0.01 kg. (Example: 18.54 kg 18.6 kg)

( Calculation Table)

Total Capacity of

Connected Indoor Units

~160 1.5 kg 161~330 2.0 331~480 2.5

Caution : (R407C unit)

When charging with refrigerant, be sure to charge from the liquid side. If charging from the gas side, it will cause the refrigerant composition to change inside the unit and the composition of the refrigerant remaining in the canister will also change.

(kg) = (0.16 ✕ L1) + (0.12 ✕ L2) + (0.06 ✕ L3) + (0.024 ✕ L4) +

PU(H)Y-(P)200

PU(H)Y-(P)250

PU(H)Y-(P)315

10.5kg 10.5kg

PURY-P200 PURY-P250

- 74 -

–77–

[3]

(1)

Refrigerant Volume Adjustment Mode Operation

Procedure

Operation

Measure

The outdoor unit LEV1 diverges more than usual during cooling operation.

Depending on the operating conditions, it may be necessary either to charge with supplementary refrigerant, or to

drain out some, but if such a case arises, please follow the procedure given below flow chart.

TH1 TH5

TH7

Using these, judge TH1, Tc - TH5 and Tc - TH7.

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or PU(H)Y-(P)200·250·315

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Switching the function select switch (SW2-4), located on the outdoor unit's control board, ON starts refrigerant volume adjustment mode operation and the following operation occurs. (Refrigerant recovery mode and oil recovery mode will be invalid.)

Additionary, if the LED monitor display switch (SW1) on the outdoor unit's control board is set to the composition of refrigerant circulating in the refrigeration cycle ( OC).

Note 1: Even if the refrigerant volume has reached a suitable level shortly after starting refrigerant volume

adjustment mode, if left for a sufficient length of time (once the refrigeration system has stabilized), there are times when this level may become unsuitable.

1) The refrigerant volume is suitable. When the refrigerant volume for TH5-TH7 is more than 5K at the outdoor unit, and 6 to 13K for SH at the indoor unit.

2) The current volume is suitable, however, may become unsuitable after a certain length of time. When the refrigerant volume for TH5-TH7 is less than 5K at the outdoor unit, or less than 6K for SH at the indoor unit.

Note 2: There are times when it becomes difficult to determine the volume when performing refrigerant

adjustments if the high pressure exceeds 1.37MPa.

Note 3: Based on the following flowchart, use TH1, TH5, TH7 and Tc to adjust the refrigerant volume. Use the

self-diagnosis switch (SW1) on the outdoor unit main PCB to display TH1, TH5, TH7 and Tc.

When running refrigerant volume adjustment mode in the cooling operation, if note 2 above applies, determine the suitable refrigerant volume after waiting until outdoor units TH 5-7 reach more than 5K, and the indoor unit SH is in the range of 6 to 9K.

Turn on the outdoor unit self-diagnosis switch and then monitor the LED for the indoor unit SH.

1 PU(H)Y-(P)200·250·315

- 75 -

Refrigerant adjustment method PUHY-(P)200·250·315

Note 2 , Ensure that no refrigerant is released into the atmosphere

Note 1, Operated using outdoor unit DIP SW3-1 and 3-2.

Note 3 , Always charge the system with liquid refrigerant, if the system is charged with gas the composition will change and capacity will be reduced

Wait for 30minutes of

Note 1

compressor operation

= Yes = No

Note 4 , K = Degrees Kelvin

273K = 0°C

Wait 5minutes before making next judgment.

Wait 5minutes before making next judgment

Start

All indoor units are run in test cooling mode

Minimum of 30minutes continuous operation

TH1 equal or less than 100°C

Add a small amount of refrigerant to the low pressure service port.

Power supply to outdoor unit has been on for 8 hours

or 30minutes of compressor running

and a stable compressor frequency.

Tc-TH5 is less than or equal to 10K and greater than or equal to 3K

TH1 less than or equal to 95°C

Tc-TH7 is greater than or equal to 20K

Tc-TH5 is less than 3K

Add asmall amount of refrigerant at the low pressure service port.

Add a small amount of refrigerant at low pressure service port.

Remove a small amount of refrigerant at lowpressure service port.

System has the correct amount of refrigerant

FINISH

- 76 -

(1) Procedure

Depending on the operating conditions, it may be necessary either to charge with supplementary refrigerant, or to drain out some, but if such a case arises, please follow the procedure given below flow chart.

TH1 SC11

SC16 Pd (High pressure)

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Note 1: As the refrigerant volume can not be adjusted in the heating mode, retrieve the refrigerant, evacuate air

and then fill the specified volume of refrigerant if it is necessary to adjust the refrigerant volume in the

winter season. Note 2: When performing the refrigerant adjustments in cooling mode, the liquid must be greater than 1.37MPa. Note 3: Judgment by the AL is at best only a rough guideline. Please do not add refrigerant based on the AL

reading alone. (Be sure to obtain calculations of the correct amount before adding refrigerant.)

Measure

Turn on the outdoor unit self-diagnosis switch ( machine 1 SW1 -2.7.9, machine 2 SW1 -1.2.7.9, machine 3 SW1 -3.7.9, machine 4 SW1 -1.3.7.9, machine 5 SW1 -2.3.7.9, machine 6 SW1 -1.2.3.7.9, machine 7 SW1 -4.7.9, machine 8 SW1 -

1.4.7.9, machine 9 SW1 -2.4.7.9, machine 10 SW1 -1.2.4.7.9), and monitor the indoor unit SH at the illuminated LED.

2 PURY-P200·250

or PURY-P200·250

- 77 -

Refrigerant adjustment method PURY-P200·250

Note 2 , Ensure that no refri

Note 1 , Operated using outdoor unit DIP SW3-1 and 3-2.

gerant is released into the atmosphere Note 3 , SC11 : Liquid refrigerant sub-cooling for

BC controller inlet

Wait for 30minutes of

Note1

Note 4 , SC16 : Liquid refrigerant sub-cooling for

compressor operation

BC controller outlet.

Note 5

, Always charge the system with liquid refrigerant, if the system is charged with gas the composition will change and capacity will be reduced Note 6

, K = Degrees Kelvin

273K = 0°C

Wait 5minutes before making next judgment.

Wait 5minutes before making next judgment

Start

All indoor units are run in test cooling mode

Minimum of 30minutes continuous operation

TH1 equal or less than

100°C

Add a small amount of refrigerant to the low pressure service port.

Power supply to outdoor unit has been on for 8 hours

or 30minutes of compressor running and a stable compressor frequency.

SC11 is greater than or equal to 5K

Note 3

TH1 less than or equal to 95°C

SC16 greater than or equal to 10K but less than or equal to 30K. Note 4

SC16is less than 30K

Add a small amount of refrigerant at low pressure service port.

Remove a small amount of refrigerant at lowpressure service port.

System has the correct amount of refrigerant

FINISH

Add a small amount of refrigerant at low pressure service port.

Are all indoor units SHs more than 6K?

Is the LEV opening degree stable when SH<6K?

= Yes = No

- 78 -

Low pressure

(MPa) Refrigerant amount to be drawn out (kg)

N Valve O Valve P Flon 22 cylinder Q R407C cylinder (Nozzle system illustrated in diagram) R Scale S Vacuum pump

P-YEM-A : Use a vacuum pump with a reverse flow

check valve

T A high-precision gravimeter measurable up to 0.1kg

should be used. If you are unable to prepare such a high-precision gravimeter, you may use a charge cylinder.

¡ Time required for recovering refrigerant from low pressure service port (minute)

0.34~0.44 0.44~0.54

0.54~0.74

1 4.0 3.5 3.5 2 8.0 7.0 6.5 3 12.0 10.5 10.0 4 16.0 14.0 13.0 5 20.0 18.0 16.5 6 24.0 21.5 19.5 7 28.0 25.0 23.0 8 32.0 28.5 26.0

9 36.0 32.0 29.5 10 40.0 35.5 32.5 11 44.0 39.0 36.0

™ Additional evacuation, refrigerant replacement, and refrigerant replacement

R2 series has unique refrigerant circuit structure which makes possible 2-pipe cooling-heating simultaneous operations. Therefore, in the case of total replacement or replenishment of refrigerant in this system, the following evacuation and refrigerant replenishment procedures are required. 1 Perform evacuation by connecting to system analyzer joint of service port of high pressure ball valve and high

pressure charge plug, and joint of service port of low pressure ball valve and low pressure charge plug.

2 Perform refrigerant charge from low pressure circuit only, after finishing evacuation, closing vacuum pump valve,

shutting off high pressure circuit of system analyzer, and opening valve of refrigerant cylinder. (In case service port of ball valve and charge plug can not be jointed as shown in the figure, use two vacuum pumps and evacuate high pressure side and low pressure side circuits separately.)

Note 1: Though refrigerant gas itself is harmless, air

tight rooms should be opened as a precortionary measure.

A Ball valve of the high pressure side B Service port C Ball valve of the low pressure side D Charge plug E High pressure F Low pressure G Evacuation H Evacuation I Replenish of refrigerant J System analyzer K Lo knob L Hi knob M 3-way joint

for PURY-P200·250

- 79 -

¶ TROUBLESHOOTING

[1] Principal Parts

Pressure Sensor

(1)

1) Check for failure by comparing the sensing pressure according to the high pressure/low pressure pressure sensor and the pressure gauge pressure. Set SW1 as shown below to display the high and low pressure sensor data displayed digitally by the light emitting

diode LD1.

High Pressure

(Units are kg/cm

Low Pressure

1 In the stopped condition, compare the pressure readings from the gauge and from the LD1 display.

(a) If the gauge pressure is 0~1 kg/cm

G (0.0098MPa), the internal pressure is dropping due to gas leakage.

(b) If the pressure according to the LD1 display is 0~1 kg/cm

G (0.0098MPa), there is a faulty contact at the connec-

tor, or it is disconnected. Proceed to 4.

G (3.14MPa) for high pressure or higher, proceed to 3.

(d) If other than (a), (b) or (c), compare the pressure readings during operation. Proceed to 2.

2 Compare the pressure readings from the gauge and from the LD1 display while in the running condition.

(a) If the difference between the two pressures is within 1 kg/cm

G (0.098MPa), for high pressure and 0.03MPa

for low pressure both the affected pressure sensor and the main MAIN board are normal.

(b) If the difference between the two pressures exceeds 1 kg/cm

G (0.098MPa), for high pressure and 0.03MPa

for low pressure the affected pressure sensor is faulty (deteriorating performance).

3 Disconnect the pressure sensor from the MAIN board and check the pressure according to the LD1 display.

(a) If the pressure is 0~1 kg/cm

G (0.098MP for low pressurea) y, the affected pressure sensor is faulty.

(b) If the pressure is 32 kg/cm

G (3.14MPa) for high pressure or higher, the MAIN board is faulty.

If ambient temperature is below 30°C, main board is faulty. If ambient temperature is above 30°C, proceed to 5.

4 Disconnect the pressure sensor from the MAIN board and shor

Disconnect the 63HS connector from the main board and replace it with the 63LS connector and check the LD1 display.

t out the No. 2 and No. 3 pins of the connector (63HS, 63LS), then check the pressure by the LD1 display. (a) If the pressure according to the LD1 displa

(a) If data is 1.37MPa or above then main board is faulty.

y is 32 kg/cm

G (3.14MPa) for high pressure and 1.37MPa for low

pressure , the affected pressure sensor is faulty.

(b) If other than (a), the MAIN board is f

(b) If (a) is not the problem then the 63LS sensor is faulty.

aulty.

2) Pressure sensor configuration. The pressure sensors are configured in the circuit shown in the figure at right. If DC 5 V is applied between the red and black wires, a voltage corresponding to the voltage between the white and black wires is output and this voltage is picked up by the microcomputer. Output voltages are as shown below.

Output power voltage high pressure 0.1 V per (0.098MPa) Output power voltage low pressure 0.3 V per (0.098MPa)

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Connector

Pressure 0-2.94MPa

out 0.5~3.5 V

GND (Black) Vout (White) Vcc (DC5V) (Red)

63HS/

63LS

on the LD1 displa

- 80 -

- 81 -

❇

Connector connection specifications on the pressure sensor body side. The connector’s pin numbers on the pressure sensor body side differ from the pin numbers on the main circuit board side.

Sensor Body Side MAIN Board Side

Vcc Pin 1 Pin 3

Vout Pin 2 Pin 2

GND Pin 3 Pin 1

Solenoid Valve (SV1, 3, 4 for PU(H)Y-P200·250·315, SV1 for PU(H)Y-200·250·315)

Check if the control board’s output signals and the operation of the solenoid valves match. Setting the self-diagnosis switch (SW1) as shown in the figure below causes the ON signal of each relay to be output to the LED’s. Each LED shows whether the relays for the following parts are ON or OFF. When a LED lights up, it indicates that the relay is ON.

1) In the case of SV1 (Bypass Valve) (a) When the compressor starts, SV1 is ON for 4 minutes, check operation by whether the solenoid valve is emitting

an operating noise.

(b) Changes in the oper

by LED display and the operating noise emitted by the solenoid valve.

ating condition by solenoid valve operation can be confirmed by the temperature of the

bypass circuit and the sound of the refrigerant.

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2) SV3, 4 (Control of heat exchanger capacity)

3) In the case of 21S4 (Multi-directional valve)

(a) Operations can be confirmed by LED display and operating sound of solenoid valve, because one or more of

SV3, 4 are turned on depending on conditions during cooling-only operations.

(2)

Outdoor unit fan

LED Display

Fan

Stop Full speed

0 100

(3)

Multi-directional valve features When power is OFF: Used as a conductor for the cooling circuit between the oil separator outlet and heat

exchanger, and the gas-ball valve (BV1) and accumulator.

When power is ON : Used as a conductor for the heating circuit between the oil separator and gas-ball valve, and

the heat exchanger and accumulator. It is possible to determine whether the unit is functioning properly by checking from which point to which point the current is flowing by monitoring the LED display, or by checking the temperature at the time at both the inlet and outlet of the multi-directional valve. Do not to check the temperature of the oil separator by direct contact due to the high temperature of the piping.

❇

Do not apply excessive external impact, as the valve will not function properly if the outer wall is deformed.

· The outdoor unit fan is phase control and controls the number of fan rotations. Confirm the number of rotations while monitoring the output status of the phase control output at the LED. The fan rotates at approximately 600rpm at full speed.

· Refer to the outdoor unit control section for details on fan control.

The fan operates at 100% for 5 seconds and then alternates between high and low pressure control. Turn the self-diagnosis switch ON to , the phase

control output status at the LED display.

❇

There are times when the AK does not go as high as 100 when in night mode etc.

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SW1

LED

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Comp operation

SV1 SV3 SV4

52C1

lights for normal operation

- 82 -

Solenoid Valve (SV1,3-6 for PURY-P200·250)

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1) In the case of SV1 (Bypass Valve) (a) When the compressor starts, SV1 is ON for 4 minutes, so check operation by whether the solenoid valve is

emitting an operating noise.

(b) Changes in the operating condition by solenoid valve operation can be confirmed by the temperature of the

bypass circuit and the sound of the refrigerant.

its operation by the LED display and the operating noise emitted by the solenoid valve. (Conditions during operation: See Control of Outdoor Unit.)

2) SV3 ~ 6 (Control of heat exchanger capacity) (a) Operations can be confirmed by LED display and operating sound of solenoid valve, because one or more of

SV3 ~5 are turned on depending on conditions during cooling-only operations.

(b) Operation can be confirmed by LED display and operating sound of solenoid valve, because all of SV3 ~ 5 are

turned on during heating-only operations.

SV3 ~6 are turned on depending on conditions during cooling-principal and heating-principal operations.

SW1

LED

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Comp operation

SV1 SV3 SV4 SV5

52C1

lights for normal operation

(3)

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SV6

(d) The refrigerant flow is as following figure. Hot gas (high pressured) flows in cooling mode and cool gas/liquid

(low pressured) flows in heating mode. Please refer to the Refrigerant Circuit Diagram. And, ON/OFF of Solenoid valve is depends on the amount of running indoor units, ambient temperature and so on. So please check by LED Monitor Display. The SV coil is taken off, then it is possible to open caps and check plungers. But the special tool which is on the Service Parts List is needed.

❇

Closed torque : 1.3N·m

- 83 -

- 84 -

Outdoor LEV

The valve opening angle changes in proportion to the number of pulses. (Connections between the outdoor unit’s MAIN board and LEV1 (PU(H)Y-(P)200·250·315))

Pulse Signal Output and Valve Operation

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ø1 ON OFF OFF OFF OFF OFF ON ON ø2 ON ON ON OFF OFF OFF OFF OFF ø3 OFF OFF ON ON ON OFF OFF OFF ø4 OFF OFF OFF OFF ON ON ON OFF

LEV Valve Closing and Valve Opening Operations

Output (phase)

Output states

Output pulses change in the following orders when the

Valve is Closed 1 23456781 Valve is Open 8 7 6 5 4 3 2 1 8

❇

1. When the LEV opening angle does not change, all the output phases are off.

2. When the output is out of phase or remains ON continuously, the motor cannot run smoothly, but move jerkily and vibrates.

❇

When the power is switched ON, a 520 pulse valve opening signal is output to make sure the valve’s position, so that it is definitely at point A . Pulse signal is output for approximatly 17 seconds.

❇

When the valve operates smoothly, there is no sound from the LEV and no vibration occurs, but when the valve is locked, it emits a noise.

❇

Whether a sound is being emitted or not can be determined by holding a screwdriver, etc. against it, then placing your ear against the handle.

❇

If there is liquid refrigerant inside the LEV, the sound may become lower.

Valve Opening Angle (Flow Rate)

Pulse Count

Valve Opening

Fully Open 480 pulses

Valve Closing

Brown Blue Orange Yellow

White

(4)

- 85 -

Indoor LEV Pulse Signal and Valve Operation Output Phase Output State

12 3 4 1 ON OFF OFF ON 2 ON ON OFF OFF 3 OFF ON ON OFF 4 OFF OFF ON ON

Valve opening

2000 Pulses

LEV Pulses

80-100 Pulses

Indoor Control Board

DC12V

LEV

Wire joining connector

Brown

5 Red

15 41

Blue

Orange

Yellow

White

Indoor Unit Connector CN60

Indoor LEV, BC LEV1 and 2

The valve opening angle changes in proportion to the number of pulses. (Connections between the indoor unit’s MAIN board and indoor LEV)

Pulse Signal Output and Valve Operation

LEV Valve Closing and Valve Opening Operations

Output pulses change in the following orders when the

Valve is Closed 1 2341 Valve is Open 4 3 2 1 4

❇

1. When the LEV opening angle does not change, all the output phases are off.

2. When the output is out of phase or remains ON continuously, the motor cannot run smoothly, but move jerkily and vibrates.

❇

When the power is switched ON, a 2200 pulse valve opening signal is output to make sure the valve’s

signal is output for approximatly 17 seconds.)

❇

When the valve operates smoothly, there is no sound from the LEV and no vibration occurs, but when the valve is lock .

❇

Whether a sound is being emitted or not can be determined by holding a screwdriver, etc. against it, then placing your ear against the handle.

❇

If there is liquid refrigerant inside the LEV, the sound may become lower.

(5)

position, so that it is definitely at point A . (Pulse

ed or

E A , it emits a noise

- 86 -

1 Disconnect the control board connector and connect

the check LED as shown in the figure below.

When the base power supply is turned on, the indoor LEV outputs pulse signals for 10 seconds, the outdoor LEV outputs pulse signals for 17 seconds, and BC controller outputs pulse signals for 10-20 seconds. If the LED does not light up, or lights up and remains on, the driver circuit is abnormal.

1 If the LEV is locked up, the drive motor turns with no

load and a small clicking sound is generated. Generation of this sound when the LEV is fully closed or fully open is abnormal.

Measure the resistance between the coils (red - white, red

- orange, brown - yellow, brown - blue) using a tester. They are normal if the resistance is within 150Ω ± 10%.

Measure the resistance between the coils (gray - orange, gray - red, gray - yellow, gray - black) using a tester. They are normal if the resistance is within 46Ω ± 10%.

1 If you are checking the indoor unit’s LEV, operate the

indoor unit’s blower and the other indoor units in the cooling mode, then check the piping temperatures (liquid pipe temperatures) of the indoor units by the operation monitor through the heat source unit’s control board. When the fan is running, the linear expansion valve is fully closed, so if there is leakage,

the temperature sensed by the thermistor (liquid pipe temperature sensor) will become low. If the temperature is considerably low compared to the remote control’s intake temperature display, it can be judged that there is not a fully

closed failure. In the case of minimal leakage, it is not necessary to replace the LEV if there are no other effects.

1 Check for pins not fully inserted on the connector and

check the colors of the lead wires visually.

2 Disconnect the control board’s connector and conduct

a continuity check using a tester.

Judgment methods and likely failure mode

Caution:

The specifications of the outdoor unit (outdoor LEV) and indoor unit (indoor LEV) differ. For this reason, there are cases where the treatment contents differ, so follow the treatment specified for the appropriate LEV as indicated in the right column.

Microcomputer driver circuit failure

LEV mechanism is locked.

The LEV motor coils have a disconnected wire or is shorted.

Fully closed failure (valve leaks)

Faulty wire connections in the connector or faulty contact.

Failure Mode Judgment Method Treatment Affected LEV

Thermistor liquid pipe (temperature sensor)

Linear Expansion Valve

In the case of driver circuit failure, replace the control board.

Replace the LEV.

Replace the LEV coils.

If there is a large amount of leakage, replace the LEV.

Check the continuity at the places where trouble is found.

Indoor

BC controller

Outdoor

Indoor

BC controller

Outdoor

Indoor

BC controller

Outdoor

Indoor

BC controller

Indoor

BC controller

Outdoor

Indoor, BC controller

Outdoor

- 87 -

Outdoor LEV Coil Removal Procedure (configuration) As shown in the figure, the outdoor LEV is made in such a way that the coils and the body can be separated.

<Removing the Coils> Fasten the body tightly at the bottom (Part A in the figure) so that the body will not move, then pull out the coils toward the top. If they catch on the stopper and are difficult to take out, turn the coils left and right until the stoppers are free from the stopper indentations, then pull the coils out. If you take out the coils without gripping the body, undue force may be applied to the piping and the pipe may be bent, be sure to fasten the body in such a way that it will not

move.

<Installing the Coils> Fasten the body tightly at the bottom (Part A in the figure) so that the body will not move, then insert the coils from the top, inserting the coils’ stopper securely in one of the indentations on the body. (There are four indentations for the stopper on the body around its circumference, and it doesn’t matter which indentation is used. However, be careful not to apply undue force to the lead wires or twist them around inside the body.) If the coils are inserted without gripping the body, it may exer t undue force on the piping, causing it to become bent, so be sure to hold the body firmly so that it won’t move when installing the coils.

Coils

Stopper

Lead Wires

Body

Indentation for Stopper (12 places around the circumference)

Part A

- 88 -

Check Valves Block PURY-P200·250

The refrigerant flow in the pipe 6, 7, 8 and 9 are depend on ON/OFF of the SV3, 4, 5 and 6. Please confirm by LED monitor display. You can open the cap of valve A, B and C, but 3 types of hexagon socket screw keys. The size is as follows.

❇

Closed torque : A : 0.17N·m

B : 2.0N·m C : 1.3N·m

(6)

- 89 -

Inverter

(7)

a. Replace only the compressor if only the compressor is found to be defective.

(Overcurrent will flow through the inverter if the compressor is damaged, however, the power supply is automati-

cally cut when overcurrent is detected, protecting the inverter from damage.) b. Replace the defective components if the inverter is found to be defective. c. If both the compressor and the inverter are found to be defective, replace the defective components of both devi-

ces.

1) Inverter related defect identification and countermeasures

Error display/failure condition Measure/inspection item

[1]

Inverter related errors (0403, 4220, 4230, 4240, 4250, 4260, 5110, 5301)

[2]

Main power breaker trip

[3]

Main power earth leakage breaker trip

[4]

Only the Compressor does not operate.

[6]

Noise has penetrated the peripheral device.

[7]

Sudden malfunction (as a result of external noise.)

[5]

The compressor always vibrates strongly or emits an abnormal noise.

¶ [7] Check the details of the inverter error in the error log at the outdoor PCB LED monitor display. ¶ [6] Perform the measures corresponding to the error code and error details determined using the remote control error display self diagnosis and countermeasures.

a. Check the breaker capacity. b. Electrical system short circuit or grounding other than the

inverter

c. Refer to 3)-[1] if not a, or b.

a. Check to ensure that power supply wiring, etc. of the

peripheral device is not in close contact with the power supply wiring of outdoor unit.

b. Check to ensure that the inverter output wiring is not in

close contact with the power supply wiring and transmission lines.

c. Check to ensure that the transmission line shield wiring is

being used properly in the necessary environment, and that the shield wire ground is appropriate.

b. Check to ensure that the transmission line shield wiring is

being used properly in the necessary environment, and that the shield wire ground is appropriate.

1. Due to a large capacity electrolytic capacitor used in the inverter, voltage still flows through even after cutting the main power, creating the possibility of electric shock. As a result, wait for a sufficient length of time (5-10 min) after cutting the main power and check the voltage at both terminals of the electrolytic capacitor to performing any checks on the inverter.

2. Damage will result to the components of IPM, etc. if the inverter wiring is not properly secured with screws, or if the connector has not been properly inserted. It is likely that any errors occurring after replacing components are the result of wiring mistakes. Ensure that the wiring, screws, connectors and Faston, etc. are properly inserted.

3. Do not remove or insert inverter connectors with the main power supply on, as this will result in damage to the PCB.

4. The current sensor will be damaged if current flows without connecting to the PCB. Always insert connectors into the corresponding PCB when running the inverter.

c. Check to ensure that the neither the transmission line or

external connection wiring run close to another power supply system or run through the same conduct pipe.

e. Attach a ferrite core to the inverter output wiring. (Please

contact the factory for details of the service part settings)

g. If this problem occurs suddenly, there is a possibility that

the inverter output is ground ed. Proceed to 2)-[3].

f. Change the power to another system.

❇

Contact the factory for cases other than those listed above.

❇

Contact the factory for cases other than those listed above.

d. Meg defect for electrical system other than the inverter

a. Check to ensure that the unit is grounded.

· Check the inverter frequency at the LED monitor and proceed to 2)-[3] if the status is operational.

a. Earth leakage breaker capacity/sensitivity current check b. Meg defect for electrical system other than the inverter c. Refer to 3)-[1] if not a, or b.

Go to 2)-[3].

- 90 -

Treatment of Inverter Output Related Troubles

Check item Phenomena Treatment

[1] Check the INV board error detection circuit.

Perform the following: 1Disconnect INV board

CNDR2. After removing, turn on the outdoor unit and check the error status. (The compressor does not operate because CNDR2, which carries the IPM drive signal, has been disconnected.)

1 IPM/overcurrent error.

(4250 detailed No. 101, 102, 103, 104, 105, 106, 107)

· Replace INV board.

[2] Check for compressor ground fault or coil error.

Disconnect the compressor wiring, and check the compressor Meg, and coil resistance.

1Compressor Meg failure

Error if less than 1MΩ.

❇

When no refrigerant is

accumulated in the compressor.

2Compressor coil resistance failure

Coil resistance value of 0.58Ω (20°C)

· Replace compressor Check whether the refrigerant is accumulating in the compressor again.

[3] Check to see if the inverter is damaged.

❇

Perform this

check if an error occurs immediately before or after turning on the compressor.

Perform the following: 1Reconnect the connector re-

moved at item [1].

2Disconnect the compressor

wiring.

3Turn on SW1-1 on the INV

board. Operate the outdoor unit after above steps. Check the inverter output voltage.

❇

It is recommend to use the

tester used to determine the ¶ [1] (7) 5) IPM troubleshooting when checking the inverter output voltage.

❇

Measure when the inverter

output frequency is stable.

1 IPM/overcurrent error.

(4250 detailed No. 101, 102, 103, 104, 105, 106, 107)

2There is a high possibility of an

inverter circuit error if the voltage unbalance across all wiring is greater than 5% or 5V.

3No voltage unbalance across all

wiring

2No voltage unbalance across all

wiring

· Refer to item [5] for inverter circuit trouble.

[4] Check to see if the inverter is damaged.

❇

Perform this

check if an error occurs during steady operation.

Turn on the outdoor unit. Check the inverter output voltage.

❇

It is recommend to use the

tester used to determine the ¶ [1] (7) 5) IPM troubleshooting when checking the inverter output voltage.

❇

Measure when the inverter

output frequency is stable.

1There is a high possibility of an

inverter circuit error if the voltage unbalance across all wiring is greater than 5% or 5V.

· Refer to item [5] for inverter circuit trouble.

See item [2]. Proceed to item [5] however if there is no problem at [2]. Replace the compressor if there is no problem at [5].

2 ACCT sensor circuit error.

(5301 detailed No. 117)

See to ¶ [1] (7) 4) "Current Sensor ACCT" Check the resistance and replace if erroneous. Replace the INV board if the ACCT status is normal.

3 DCCT sensor circuit error.

(5301 detailed No. 118)

· Replace DCCT

Turn on the outdoor unit again after replacing the DCCT. If an error occurs:

· Replace the INV PCB

(The DCCT condition can be regarded as normal.)

4 ACCT sensor circuit error.

(5301 detailed No. 115)

· INV board error detection circuit is normal.

Because IPM can not drive, if the CNDR2 is disconnected.

- 91 -

Trouble Measures when Main Power Breaker Tripped

Check item Phenomena Treatment

[5] Check the inverter circuit trouble.

1Check to see if the IPM screw

terminal is loose.

3Check the resistances be-

tween each terminal of IPM. Refer to ¶ [1] (7) 5) for details on IPM troubleshooting.

2Check the exterior of the IPM.

1Screw terminal is loose. · Check all IPM screw terminals and tighten.

2IPM is cracked due to swelling.

3Resistance error between each

terminal of IPM.

4All normal for items 1-3 above

· IPM replacement Check the operation in [3] or [4] after replacing the IPM. In the case of an output voltage unbalance or error recurrence: Replace the G/A board

In the case of an output voltage unbalance or error recurrence after replacement:

Replace the INV board

· IPM replacement Check the operation in [3] or [4] after replacing the IPM. In the case of an output voltage unbalance or error recurrence: Replace the G/A board

In the case of an output voltage unbalance or error recurrence after replacement:

Replace the INV board

· IPM replacement In the case of an output voltage unbalance or error recurrence after replacement: Replace the G/A board

In the case of an output voltage unbalance or error recurrence after replacement:

Replace the INV board

Check item

[1]

[2]

[3]

Phenomena Treatment

Perform Meg check between the terminals in the power terminal block Tba.

Turn on the power again and check once more.

Turn on the outdoor unit and check that it operates normally.

1Zero to several ohm, or Meg

failure.

1Operates normally without tripping

the main breaker.

2Main power breaker trip

1Main power breaker trip 2No remote control display

Check each part in the main inverter circuit.

❇

Refer to "Simple checking Procedure for

individual components of main inverter

circuit". a. Diode Stack b. IPM c. Rush current protection resistor d. Electromagnetic relay e. DC reactor f. Noise filter

a. There is a possibility that the wiring shorted

momentarily. Trace the short and repair.

b. If a. above is not the case, there is a

possibility that there was a compressor failure.

· A compressor ground fault can be considered.

Go to (2)-[2].

- 92 -

Simple Checking Procedure for Individual Components of Main Inverter Circuit

Part name Judgement method

Diode Stack

Refer to "Determining Diode Stack Troubleshooting" (VII-¢-5-(6))

IPM (Intelligent Power Module)

Rush current protection resistor R1, R5

Electromagnetic contactor (52C)

DC reactor DCL

Cooling fan (MF1)

Current sensor ACCT

Refer to "Determining IPM interference" (VII-¢-5-(5))

Measure the resistance between terminals: 47Ω±10%

Measure the resistance between terminals: 1Ω or lower (almost 0Ω) Measure the resistance between terminals and the chassis:

Measure the resistance between terminals : 0.1k~1.5kΩ

Measure the resistance value at each terminal.

Disconnect the CNCT2 target connector and check the resistance between terminals: 280Ω±30Ω 1-2PIN (U-phase) 3-4PIN (W-phase)

❇ Check the ACCT connecting phase and direction.

Check Location

A1-A2

1/L1-2/T1 3/L2-4/T2 5/L3-6/T3

Judgement value

0.1k~1.3kΩ

1/L1 3/L2 5/L3

2/T1 4/T2 6/T3

W ACCT-WACCT-U

IPM

Transformar (To1)

Measure the resistance between terminals on the primary side (CNTR1) : 1.0k~2.5kΩ Measure the resistance between terminals on the secondary side (CNTR) : 20~60Ω

- 93 -

5) Intelligent Power Module (IPM)

The measured v

Measure resistances between each terminal of IPM with tester, and use the results for troubleshooting.

alues for troubleshooting are shown in the table below.

6) Diode stack

(Restrictions to applicable tester are the same as those of IPM)

erform continuity check with tester. Judged as normal if the following characteristics are observed.

123

1 2 3

–

• External view • Internal circuit diagram

• Judged value

∞ ∞ ∞

Tester

Black

5~ 200

Ω

5~ 200

Ω

5~ 200

Ω

5~ 200

Ω

5~ 200

Ω

5~ 200

Ω

NUVW

∞

∞∞∞

∞ ∞

Tester

Black

–

1 2 3

–

123

1 6

4 9

7 11

Pre-Driver

Over heating

Temperature sensor

protection circuit

16 10 7 4 1

1 Focus on whether there is a complete open (∞Ω) state or short-circuit (~0Ω).

The measured resistance value is a guideline and may deviate slightly. Measure between several similar measurement points. If the value does not differ by more than double or half from the other points, then judge the state as OK.

2 Restrictions to applicable tester

Use a tester with an internal power of 1.5V or more.

❇

Battery type tester

A card tester with button battery has a low applied voltage, so the resistance value of the diode characteristics cannot be measured correctly. Use a measurement range that measures the low resistance when possible. An accurate measurement with less fluctuation will be possible.

5~ 200

Ω

5~ 200

Ω

5~ 200

Ω

5~ 200

Ω

5~ 200

Ω

5~ 200

Ω

Tester

Red

∞∞∞

Tester

Red

- 94 -

7) Caution at replacement of inverter parts

1 Fully check wiring for incorrect and loose connection.

The incorrect or loose connection of the power circuit part wiring like IPM and diode module causes to damage the IPM. Therefore, check the wiring fully. As the insufficient tightening of screws is difficult to find, tighten them together additionally after finishing other works. For the wiring of the base for IPM, observe the wiring diagram below carefully as it has many terminals.

2 Coat the grease for radiation provided uniformly onto the radiation surface of IPM /diode modules.

Coat the grease for radiation on the full surface in a thin layer, and fix the module securely with the screw for fastening. As the radiation grease attached on the wiring terminal causes poor contact, wipe it off if attached.

Motor

(Compressor)

G/A board

Red

UVW

White Black

Black

Capacitor

(C2,C3)

Red

IPM

CNDC2

- 95 -

[2] Trouble and remedy of remote controller (In the case of MA remote controller)

Phenomena Factors Check method and handling

If pushing the remote control operation SW does not make a sound such as feep with the crystal display lamp out, and no operate is possible.

(An appropriate display on the remote control is not on.)

When turning on the remote control operation SW, a temporary operation display is indicated, and the display lights out immediately, the unit stops.

1) Power supply from transformers is not turned on in Indoor Unit. 1 The original power supply of Indoor Unit is not

turned on.

2 The connector (CND. CNT, CN3T) on the

controller board in the room has come off.

Fuse on the control board in Indoor Unit has melting down. Transformer defects or damage to unit.

2) MA remote controller has been wired incorrectly. 1 Break of the MA remote controller line and the

connection to the terminals has come off.

2 Short circuit of the MA remote control wiring 3 Reversed connections of the wiring on remote

controller.

4 Incorrect connection of the MA remote control wiring

to the transmission line terminal block (TB 5).

5 Reversed connections between the MA remote

control wiring in the indoor unit and AC 200V power supply wiring.

6 Reversed connection between the MA remote

control wiring in the indoor unit and M-NET transmission wiring.

3) The maximum number of MA remote controllers connected to one is unit exceeded (two units).

4) The wiring length of the MA remote line and the used electric wire diameter is out of specifications.

5) The wiring of the remote display output to the outdoor unit is short circuited, or the relay is connected with reversed polarity.

6) Defective of the controller board in the room

7) Defects of MA remote control

1) M-NET transmission power supply from the outdoor unit is not supplied.

1 The original power supply of the outdoor unit is not turned on. 2 Disconnection of connectors on the board of the outdoor unit.

Main board --- CNS1, CNVCC3 INV board --- CNAC2, CNVCC1, CNL2 3 Power supply circuit defects of the outdoor unit. (For detail, refer to Pages 127)

•

INV board defects

•

Blown fuse (F1 on INV Board)

•

Diode stack destruction

•

Prevention resistance of rush current (R1) damage

2) T ransmission line short

3) Wiring mistakes of the M-NET transmission line on the side of the outdoor unit

1 Break of transmission line, and removal of terminal block 2 The room transmission line is wired to the transmission line

terminal block (TB7) for the central control by mistakes.

4) M-NET transmission line break on the side of the room unit

Disconnection off wiring between the M-NET transmission terminal block (TB 5) and the room controller board CN2M and pulls off of connectors

a) Check the MA remote control terminal

voltage (between A and B). i) In the case of voltage DC8.5- 12V,

the remote controller is defective.

ii) In the case of voltage not available:

•

Check the left described 1) and 3), after checking , if these are factors, then modifications should be performed.

•

If there are no factors of the left described 1) and 3), move to b).

b) Remove the remote control wiring from

the terminal block TB13 for the MA remote control in the indoor unit, and check voltage between A and B. i) In the case of voltage DC9-12V

Check the left described 2) and 4), if these are factors, then modifications should be performed.

ii) In the case of voltage not available:

•

Recheck the left described 1) once again, if this is a factor, them modifications should be performed.

•

If there are no factors in the left described 1), check the wiring for the remote display (the relay polarity, etc.)

•

If there are no factors, replace the controller board in the indoor unit.

In the case of item 1), the LED 1 on the controller board in the unit is off.

In the case of factors 2) and

3) Indicated by 7102 error code on the self-diagnosis LED of the outdoor unit.

- 96 -

Phenomena Factors

3 When the remote

control SW is turned on, the indication goes off after approximately 20- 30 seconds, and indoor unit stops.

1) Power supply from the transformer is not available to the control board of BC controller.

1 The original power supply of the BC controller is not turned on. 2 Removal of connectors (CN12, CN38, CNTR) on the control board of the BC controller. 3 Fuse on the control board of the BC controller is blown. 4 Transformer defects of the BC controller and a malfunction. 5 Defects on the control board of the BC controller

Check method and handling

YES

❇

Check the BC controller power terminal block voltage

220 ~ 240V?

Fuse blown off

Removed?

Within spec.?

Fuse check on the board

Connector removal checks (CN03, CN12, CNTR)

Connector connection defects

Modify the defective places

Check for factors of transformer cut Earth route on the board Earth route of sensor and LEV

Check for resistance value of transformer

BC controller Defects for the control board

Verify the power supply wiring original power supply.

Power supply reapplying

220 ~ 240V circuit short and ground checks

❇

1 As for transformer checks, It is subject to the failure judgment method of main parts in 4.5.

- 97 -

4 “HO” indication on

the remote controller is not lit, and the ON/OFF switch does not work.

1) The M-NET transmission power supply form the outdoor unit is not supplied. 1 The original power supply of Indoor Unit is not

turned on.

2 The connector on the controller board in Indoor

Unit is removed. Main board ----CNS1, CNVCC3 INV board----CNAC2, CNVCC1, CNL2

Power supply circuit defects of the outdoor unit. (For detail, refer to Pages 127)

•

INV board defects

•

Diode stack defects

•

Prevention resistance of rush current (R1) damage.

2) Short circuit of the M-NET transmission line

3) Error wiring of the M-NET transmission line on the side of the outdoor unit 1 A break of the transmission line or terminal block

removal

2 Indoor Unit transmission line is wired to the

transmission line terminal block (TB7) for the central control by mistake.

4) M-NET transmission line break on the side of Indoor Unit (Short/ Open)

Loose or disconnection of wiring between the M-NET transmission terminal block (TB 5) of Indoor Unit and Indoor Unit controller board CN2M and disconnection of connectors

6) Error wiring of the MA remote control

1 Short circuit of the MA remote wiring 2 A break of the MA remote control line (No.2) and

disconnection

of the terminal block connection

Reversed wiring, cross-over in the group control

4 Wire by mistakes the MA remote control to the

terminal block (TB5) for the transmission line

Connect by mistakes the M-NET transmission line to the MA remote control terminal block (TB13)

7) The unit address is not “00” as it should be with automatic address setting.

8) The address of

Indoor Unit

becomes 51 or more.

9) The master and slave setting of the MA remote control becomes the slave setting.

10)Use the M-NET remote control in spite of the automatic address.

11)Defects for the room controller board (MA remote communication circuits)

12)Defects for the remote controller

Check method and handling

Phenomena Factors

In the case of 2), 3) and 7) factors, indicate 7102 errors by the self-diagnosis LED of the outdoor unit.

YES

Check for 2) and 3) of factors

Modify the defective places

7120 error display?

Check for 11) item

Check for 4) item

19 ~ 12V?

Check the items of

5), 6), 8), 9), and 10)

Defects of the indoor unit controller board or MA remote control

Factors available?

Modify the defective places

Check for the terminal block (TB15) voltage for the transmission line of the indoor unit

The same

phenomena in all unit of the same

refrigerant system happen?

Self-diagnosis LED checks

YES

Factors

available?

Check for 1) item

Change the M-NET remote control to the MA remote control.

- 98 -

(In the case of M-NET remote controller)

Symptom Cause Checking method & countermeasure

Despite pressing of remote controller ON/OFF switch, operation does not start and there is no electronic sound.

(No powering signal

appears.)

At about 10 seconds after turning remote controller operation switch ON, the display distinguishes and the operation stops.

1) M-NET transmission power source is not supplied from outdoor unit. 1 Main power source of outdoor unit is not

connected.

2 Disconnection of connector on outdoor unit circuit

board. Main board : CNS1, CNVCC3 INV board :CNAC2, CNVCC1, CNL2

3 Faulty power source circuit of outdoor unit.

• Faulty INV board,

• Blown fuse (F1 on INV board)

• Broken diode stack

• Broken resistor (R1) for rush current protection

2) Short circuit of transmission line.

3) Erroneous wiring of M-NET transmission line at outdoor unit. 1 Transmission line disconnection or slipping off from terminal

block.

2 Erroneous connection of indoor/outdoor transmission line to

TB7.

4) Disconnection of transmission wiring at remote controller.

5) Faulty remote controller.

The cause of 2) and 3) is displayed with self-diagnosis LED for 7102 error.

1) Power source is not fed to indoor unit from transformer.

1 2 3 4 5

Main power source of indoor unit is not turned on. Disconnection of connector (CND, CNT, CN3T) on indoor controller board. Blown fuse on indoor controller board. Faulty or disconnected transformer of indoor unit. Faulty indoor controller board.

2) Faulty outdoor control circuit board uncontrolled. As normal transmission is fails between indoor and outdoor units, outdoor unit model can not be recognized.

Checking method & countermeasure

a) Check transmission terminal block of

remote controller for voltage. i) In case of 17 ~ 30V

Faulty network remote controller

ii) In case of less than 17V

See “Transmission Power Circuit

(30V) Check Procedure”.

Check indoor LED3

Lighting?

Check for the change of LED display by operating dip switch SW1 for self-diagnosis.

Extinguishing or unable to confirm

Check indoor unit power source terminal block voltage

AC 220~240V?

Check fuse on circuit board

Blown?

Check connection of connector (CND, CNT , CN3T)

Disconnected

Check transformer resistance value

Within rated?

Check self-diagnosis function of outdoor unit

Changed?

Faulty indoor controller board

Check main power source of power source wiring.

Apply power source again.

Check 220V~240V circuit for short circuit and ground fault.

Improper connector connection

Check cause of transformer disconnection.

•Ground fault on circuit board

•Ground fault on sensor, LEV

Check self-diagnosis function after powering outdoor unit again.

Changed?

Accidental trouble

Faulty outdoor unit control circuit board

Repair faulty point.

YES

Lighting

❇

1 Check the transformer in accordance with the “TROUBLE SHOOTING” in the indoor unit’s service handbook.

❇

- 99 -

Symptom Cause

3 “HO” display on re-

mote controller does not disappear and ON/OFF switch is ineffective.

(Without using MELANS)

1) Outdoor unit address is set to “00”

2) Erroneous address. 1 Address setting of indoor unit to be coupled with remote controller incorrect.

(Indoor unit = remote controller - 100.)

2 Address setting of remote controller incorrect.

(Remote controller = indoor unit + 100.)

3) Faulty wiring of transmission terminal block TB5 of indoor unit in the same group with remote controller.

4) Centralized control SW2-1 of outdoor unit is turned ON.

5) Setting to interlocking system from indoor unit (Switch 3-1 = OFF), while Fresh Master is intended to be use by remote controller operation (indoor unit attribute).

6) Disconnection or faulty wiring of indoor unit transmission line.

7) Disconnection between indoor unit M-NET transmission line terminal block (TB5) and connector CN2M.

8) More than 2 sets of power supply connector (CN40) are inserted into centralized control transmission line of outdoor unit.

9) Faulty outdoor unit control circuit board.

10)Faulty indoor controller board.

11)Faulty remote controller.

(Interlocking control with MELANS)

12)No grouping registration from MELANS (Neglecting to set the relation between indoor unit and network remote controller).

13)Disconnection of centralized control transmission line (TB7) at outdoor unit.

14)At system connected with MELANS, power supply connector (CN40) is inserted to centralized control transmission line of outdoor unit.

Checking method & countermeasure

In case MELANS is not used

In case with MELANS used

When MELANS is used, “HO” display on the remote controller will disappear at the group registration of the indoor unit and local remote controller. If “HO” does not disappear after the registration, check the items 12) ~ 14) in the Cause column.

Same symptom for all units in a single refrigerant system?

Check outdoor unit address

51 ~ 100?

Check centralized control switch SW2-1 at outdoor unit

ON?

Faulty outdoor unit control circuit board

Outdoor unit address setting miss

Switch setting miss Change from ON to OFF

Address setting miss of remote controller

Indoor address setting miss

Transmission line wiring miss of indoor unit M-NET

Disconnection of CN2M connector

Setting miss of Fresh Master SW3-1

Repair spot in trouble

Confirm address of remote controller with “HO” displayed

Indoor unit + 100?

Check address of coupling indoor unit

Remote controller

-100?

Check voltage of indoor unit MNET transmission terminal block

17 ~ 30V?

Check connection between indoor unit M-NET transmission terminal block (TB5) and connector CN2M

Disconnection

Check Fresh Master SW3-1

Faulty indoor controller board or remote controller

ON?

YES

Mitsubishi PUY-P200YEM-A, PUHY-P200YEM-A, PUY-P315YEM-A, PUHY-P250YEM-A, PUY-P250YEM-A Service Handbook

Specifications and Main Features

Frequently Asked Questions

User Manual