Mitsubishi PUHY-250YMF-B, PUY-200YMF-B, PUHY-P200YMF-B, PUHY-P250YMF-B, PUY-250YMF-B Service Handbook

AIR CONDITIONERS CITY MULTI

Models PUHY-200YMF-B, 250YMF-B

PUHY-P200YMF-B, P250YMF-B PUY-200YMF-B, 250YMF-B

PURY-200YMF-B, 250YMF-B PURY-P200YMF-B, P250YMF-B

CMB-P104, P105, P106, P108, P1010V-D CMB-P104, P105, P106, P108, P1010, P1013, P1016V-E

Service Handbook

Service Handbook PUHY, PUY, PURY-200·250YMF-B/PUHY, PURY-P200·P250YMF-B/CMB-P-V-D, CMB-P-V-E

–1–

11

1 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 C1220 (CU-DHP) phosphorus deoxidized copper as specified in the *JIS H3300 “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.

*JIS: Japanese Industrial Standard

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.

–2–

[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.

–3–

[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.

–4–

[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)

–5–

[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 braze and seal both ends of them.

Reasons :

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

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

Note :

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

–6–

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

2. Standard degree of vacuum for the vacuum pump Use a pump which reaches 0.5 Torr (500 MICRON) 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 5 Torr. Do not use a general gauge manifold since it cannot measure a vacuum of 5 Torr.

4. Evacuating time

• Evacuate the equipment for 1 hour after –755 mmHg (5 Torr) 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.

–7–

[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 evaporation temperature is closest to the outside temperature 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 Series Y (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

Val ve

Liquid

–8–

22

2 COMPONENT OF EQUIPMENT

[1] Appearance of Components

Outdoor unit

• PU(H)Y-200, 250YMF-B

Rear

PUHY-YMF-B PUY-YMF-B

Propeller fan

Fan motor

Heat exchanger (front)

Noise filter

Heat exchanger (rear)

Terminal Box

Compressor

Accumulator

SCC

Accumulator Control Box Accumulator Control Box

4-way valve Compressor

Compressor

–9–

• PUHY-P200·250YMF-B

Propeller fan

Fan motor

Heat exchanger (front)

Heat exchanger (rear)

Noise filter

Terminal Box

Compressor

Drier

Accumulator Control Box

4-way valve Compressor

SCC

Accumulator

Rear

Heat exchanger of CS circuit

–10–

• PURY-P200·250YMF-B

Propeller fan

Solenoid Valves (SV) Block

Fan motor

Heat exchanger (rear)

Accumulator

Compressor

Terminal Box

Check Valves (CV) Block

Drier

CV block

Rear

SV block

Heat exchanger of CS circuit

Compressor

Drier

Heat exchanger (front)

Noise filter

Control Box

–11–

Noise Filter Box

Terminal Box

Noise filter

Terminal block TB3 Transmission

Terminal block TB1 Power source

Terminal block TB7 Transmission (Centralized control)

–12–

Controller Box

FANCON board

Choke coil (L2)

INV board

MAIN board

Thyristor module (SCRM)

Diode stack (DS)

Transistor module (TRM)

Capacitor (C2, C3) (Smoothing capacitor)

Magnetic contactor (52C)

–13–

MAIN board

• PUHY

CN51 Indication distance 3-4 Compressor ON/OFF 3-5 Trouble

LD1 Service LED

CNRS3 Serial transmission to INV board

CN3D Cooling/Heating auto changeover

SW1

CNTR CNFC1

CNVCC4 Power source for control

CNVCC3 Power source for control

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

CNS1 M-NET transmision

CNS2 M-NET transmission (Centralized control)

CN40 M-NET transmission power supply

CN20 Power supply

3 L1 1 N

SW3 SW4 SW2 SWU2 SWU1

–14–

MAIN board

• PURY

CN51 Indication distance 3-4 Compressor ON/OFF 3-5 Trouble

LD1 Service LED

CNRS3 Serial transmission to INV board

CNTR CNFC1

CNVCC4 Power source for control

CNVCC3 Power source for control

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

CNS2 M-NET transmission (Centralized control)

CNS1 M-NET transmission

CN20 Power supply

3 L1 1 N

SW3 SW4 SW2

CN40 M-NET transmission power supply

SWU2 SWU1 SW1

–15–

INV board

CN3 CN2-1 CN2-2 CN2-3

Output to transistor module (INVERTER)

CNL2 Choke coil

CNTH

CN30V

CNVCC1 Power supply

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

CNVCC2 Power supply (5V)

CNCT

CNVDC 1-4 DC-560V

CNAC2 Powe r source

1 L2 3 N

CN52C Control for 52C

CNFAN Control for MF1

CNR CNRS2

Serial transmission to MAIN board

SW1

–16–

FANCON board

CNFC2

CNU

CNW

CNV

–17–

BC controller

CNTR

CN02 M-NET transmission

CN03

CN12 Power supply

1 EARTH 3 N 5 L

SW4 SW2 SW1

–18–

TH1

TH6

TH7

TH8

TH5

TH3

TH4

TH2

Indoor units

CJ1

O/S

63HS

CJ1

Comp

HEX2

HEX1

SCC

LEV1

ST7

BV2

ST2

BV1

ST1

CJ2

CV1

ST6

SV1

CP1

SV2ST5

CP2

CP4

ST3

ST4

SLEV

SA

MA

CP3

63H

6-2

27

8

40 6

CH

93 80

*Operation data of PUHY-200YMF-B

Standard operation data are shown for cooling

in the C column and heating in the H column.

Units for each value are : ˚C for TH1

˜

TH8

: kg/cm

2

G (MPa) for HPS

*

6-1

30 36

20.3 (1.99)

17.5 (1.72)

[2] Refrigerant Circuit Diagram and Thermal Sensor

1PUHY-200YMF-B, 250YMF-B

: Solenoid valve : Orifice : Capillary : Check valve : Thermal sensor

: Strainer SP : Service port ACC : Accumulator

–19–

TH1

TH6

TH7

TH8

TH5

TH3

TH4

TH2

Indoor units

CJ1

O/S

63HS

CJ1

Comp

HEX2

HEX1

SCC

LEV1

ST7

BV2

ST2

BV1

ST1

CJ2

CV1

ST6

SV1

CP1

SV2ST5

CP2

CP4

ST3

ST4

SLEV

SA

MA

CP3

63H

6

27

8

40

C

93

*Operation data of PUY-200YMF-B

Standard operation data are shown for cooling

in the C.

Units for each value are : ˚C for TH1

˜

TH8

: kg/cm

2

G (MPa) for HPS

*

6

30

20.3

(1.99)

: Solenoid valve : Orifice : Capillary : Check valve : Thermal sensor

: Strainer SP : Service port ACC : Accumulator

2PUY-200YMF-B, 250YMF-B

–20–

SCC

11 0

85 70

21.9

(2.15)

21.4

(2.10)

96 78

111 87

34 36

3.93 3.67

19 -3

0.23 0.28

-1 -3

42 -1

CH

8

27

85 0

LEV1

HEX f HEX b

TH6

CS-Circuit

SV2

CP1

CJ1

CJ2

63HS

SV1

ST6

CV1

CP3

O/S

63H

63LS

MA SA

ST8

ST4

TH4

TH3

TH7

ST7

LEV1

ST2

BV2

Indoor units

ST1 BV1

ST3

Comp

Drier

TH9

TH10

CP2

TH2

TH8

TH5

SLEV

ST5

Circulating Configuration : αOC

❈

❈ Operation data of PUHY-P250YMF-B

Standard operation data are shown for cooling in the C column and for heating in

the H column.

TH1~TH5, TH7~TH10 : ˚C

LEV1,SLEV : pulse

HPS, LPS : kg/cm

2

G (MPa)

➂PUHY-P200YMF-B, P250YMF-B

TH1

: Solenoid valve : Orifice : Capillary : Check valve : Thermal sensor

: Strainer SP : Service port ACC : Accumulator

–21–

: Solenoid valve : Orifice : Capillary : Check valve : Thermal sensor : Strainer

SP : Service port ACC : Accumulator

➃PURY-200YMF-B, 250YMF-B

TH1

TH5

TH3

TH4

TH23

TH21

TH22

LEV

TH13

PS1

SVC

SVA SVB

A Block

B Block

C Block

Indoor units

BC controller

Gas/liquid separator

LEV2

LEV1

SVM

LEV4

LEV3

TH15 TH16

PS3

TH12

O/S

63HS

SP1

Comp

BV2

BV1

ST1

Solenoid Valves Block

SP2

Check Valves Block

CV1

ST6

SV1

CP1

SV2

ST5

CP2

CP3

ST3

ST4

SLEV

SA

MA

63H

TH6

HEXb

SV6

CV7

SV5

SV3

SV4

HEXf3

HEXf2

HEXf1

CV10

CV3

CV2

CV5

CV4

CV9

CV8

CV6

63LS

TH14

TH11

Distributor

TH7

ACC

CMB-P104V-D

–22–

TH1

TH9

Drier

TH5

TH3

TH4

TH2

O/S

63HS

63LS

SP1

Comp

BV2

BV1

ST1

SP2

CS(Composition Sensing) circuit

CV1

ST6

SV1

CP1

SV2

ST5

CP2

CP3

ST3

ST4

SLEV

SA

MA

CP3

63H

TH10

TH6

HEXb

CV7

HEXf3

HEXf2

HEXf1

CV10

CV3

CV2

CV5

CV4

CV9CV8

CV6

TH7

Check Valves Block

Valves Block

ACC

Solenoid Valves Block

SV6

SV5

SV3

SV4

Distributor

➄PURY-P200YMF-B, P250YMF-B

: Solenoid valve : Orifice : Capillary : Check valve : Thermal sensor

: Strainer SP : Service port ACC : Accumulator

TH23

TH21

TH22

LEV

TH13

SVC

SVA

SVB

Indoor units

BC controller

CMB-P104V-E

Gas/liquid separator

PS1

LEV1

SVM

PS3

LEV3

TH14

TH12

TH11

TH15

TH16

–23–

ON/OFF

–

STAND BY

DEFROST

ERROR CODE

OA UNIT ADDRESS NO.

CENTRALLY CONTROLLED

CLOCK

ON

OFF

˚C

1Hr.

NOT AVAILABLE

˚C

CHECK MODE

FILTER

CHECK

TEST RUN

ON

OFF

CLOCK

FILTER

CHECK

TEST RUN

REMOTE CONTROLLER

NETWORK

PAR-F25MA

TEMP. TIMER SET

INDOOR UNIT

ADDRESS NO.

[3] Equipment Composition

40LW-F

A. Outdoor Unit

PURY-200YMF-B

PURY-P200YMF-B

PURY-250YMF-B

PURY-P250YMF-B

B. BC controller

Branch pipe kit

CMY-Y102S-F CMY-Y102L-F

D. Indoor Unit

Cassette ceiling

Ceiling concealed Wall mounted Ceiling suspended

Floor standing

Exposed Concealed

PLFY-P PLFY-P PEFY-P PKFY-P PCFY-P PFFY-P PFFY-P

4-way flow 2-way flow

20 - 20VLMD 20VM 20VAM - 20VLEM 20VLRM

25 - 25VLMD 25VM 25VAM - 25VLEM 25VLRM

32 32VKM 32VLMD 32VM 32VGM - 32VLEM 32VLRM

40 40VKM 40VLMD 40VM 40VGM 40VGM 40VLEM 40VLRM

50 50VKM 50VLMD 50VM 50VGM - 50VLEM 50VLRM

63 63VKM 63VLMD 63VM - 63VGM 63VLEM 63VLRM

80 80VKM 80VLMD 80VM - - - -

100 100VKM 100VLMD 100VM - 100VGM - -

125 125VKM 125VLMD 125VM -

125VGM

--

E. Option (Panel)

Decoration panel

PLP- CMP-

20

25

32

40

50

63

80

100, 125

3GB

6GB

32LW-F

63LW-F

125LW-F

Model

Capacity

Model

Capacity

PAR-F25MA

F. Remote Controller

C. Branch pipe kit/joint pipe kit

4-branch type

CMB-P104V-D

5-branch type

CMB-P105V-D

6-branch type

CMB-P106V-D

8-branch type

CMB-P108V-D

10-branch type

CMB-P1010V-D

13-branch type

––

16-branch type

CMB-P104V-E CMB-P105V-E CMB-P106V-E CMB-P108V-E CMB-P1010V-E CMB-P1013V-ECMB-P1016V-E

Joint pipe kit

CMY-R160-F: for V-D type

CMY-R160-G: for V-E type

Ceiling mounted

built-in

71

-

PDFY-P

20VM

25VM

32VM

40VM

50VM

63VM

80VM

100VM

125VM

71VM

-

--

MJ-103MTRA

PAC-SC32PTA

PAC-SE51CRA

A. Outdoor Unit

PUHY-200YMF-B

PUY-200YMF-B

PUHY-P200YMF-B

PUHY-250YMF-B

PUY-250YMF-B

PUHY-P250YMF-B

B. Branch pipe kit

Branch joint

Branch header

4-connection 7-connection 10-connection

CMY-Y107-ECMY-Y104-E CMY-Y1010-ECMY-Y102S-F CMY-Y102L-F

12

6

3

GROUP

SELECT

MODE

TEST RUN

AIR

DIRECTION

FAN SPEED

ON/OFF

0

87

54

CLOCK/

PATTERN

PROHIBITION

TIMER

MODE

TEMP.

REMOTE

MJ-103MTRA

CENTRAL CONTROLLER

9

INS.

DEL.

SCREEN

BACK

ENTER

VENTILATION

RESET

ON/OFF

SMTWTFS

SET

SET BACK

036912

12 15 18 21 24

SET/MONITOR TODAY

WEEKLY

SETTING

PROGRAM TIMER

PAC-SC32PTA

DAILY

SETTING

ON

SET BACK ON

CLOCK

OFF

DAILY TIMER

OFF

SET BACK

CENTRAL

TEMP.CHECK

˚C

TEMP.

ON/OFF

PAC-SE51CRA

–24–

[4] Electrical Wiring Diagram

1 PU(H)Y-(P)200·250YMF-B

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Appliance

PUHY-P200/250YMF-B

PUY-P200/250YMF-B

PUHY-200/250YMF-B

PUY-200/250YMF-B

Difference

All exists

” 1” are not existed

” 2” are not existed

” 1” and ” 2” are not existed

1

2

1

URkr

PQR

a

v

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sgT

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PUHY-P

·

YMF-B only

H/P unit (PUHY) only

1

2

1

2

sgPO

a

URkr

sgX

o

QPrS

1 PU(H)Y-(P)200·250YMF-B

–26–

CNTR

(3P)

CN3

(6P)

CNL2

(2P)

CN30V

(2P)

MF1

Purple

R7

FB6

Black Yellow Orange

L2

Power circuit board

(INV board)

BOX BODY

Inverter

Controller Box

Red Brown

Black Purple

Black

Yellow

White

Red

Brown

Orange

Red

Blue

CNW

(5P)

CNV

(5P)

CNFC2

(6P)

CNU

(5P)

SW4

41

OFF:0

ON:1

SV4

X07

X06

12345

6

(6P)

CN36

SV6

X09

X08

12345

6

(6P)

CN37

SV3

SV5

22

(5P)

CNLV1

(3P)

CN32

(3P)

CNL

(2P)

CN2-1

(3P)

CNH

(2P)

CN01

THHS

(8P)

CN02

(2P)

CN2-2

(3P)

CN03

(3P)

CNFAN

(4P)

CN05

(7P)

CNRS3

(6P)

CNVCC1

(4P)

CNCT

(6P)

CNVCC3

(2P)

CNVCC2

(7P)

CNRS2

X10

X01

X02

52C

32165

1234567121432

2

6

3

54

1

32

2

11

1

21

2

21

31

243

2

21

1

43

2

21

FG

123

BlackRed

Motor (Compressor)

V

MC

W

C20

C23 C24

C21 C22

U

C25

White

12

DCCT

34

C16

C15

C14

B1

E1

E2

B2

C2E1

TRM3

C1

C2E1

B2 E2 E2 E1 B1

B1

E1

E2

B2

C2E1

C1

TRM2

CNTR1

1A F

250VAC

F3

T01

R3

R2

C3

C2

DCL

+

TRM1

+

52C

R1

R5

C1

ZNR4

+

~

-~

C1

DS

~

TB7

M2

M1

TB3

Unit body

controller

remote

Indoor and

Connect to

Yellow

Green/

Blue

Black

Red

White

TB1

PE

L1

Terminal Box

PE

L2

L3

SLEV

L1

63LS

Red

White

Black

321

63HS

Red

White

Black

TH4 TH3

TH6

TH5

TH7

TH2

TH1

321

N

L3

L2

L1

N

L3

63H

2A F

250VAC

F1

L2

CH3

L2

CH2

L1

SV2

TB1A

21S4

CH1

SV1

NF

X05

X04

SSR

White

Red

Black

12

34

Blue

Yellow

Green/

(MAIN board)

Control circuit board

BOX BODY

DA040

R157

R158

D25

PC07

R038

PC01

R037

D24

R039

50Hz

380/400/415V

3N~

Power source

L3

X10

N

C047

4:Compressor ON/OFF

5:Trouble

N

NF Box

12V

switch

the following table)

(For SW1:1~10display see

Self-diagnosis selector

1

LD1

ON:1

OFF:0

110

*1

SW3

OFF:0

SW2

ON:1

OFF:0

SWU1SWU2

SW1

101

ON:1

*1

Unit address setting switch

10

switch

Function selector

101

X01

X02

(2P)

CNTH

(3P)

CN38

(4P)

CNVDC

3

(3P)

CN52C

2

(3P)

CNR

(3P)

CNX10

1

3

(3P)

CNS2

221

(3P)

CNAC2

1

(5P)

CN51

2

(2P)

CNS1

3112334

(2P)

CNVCC4

516

(2P)

CN2-3

122

3

(6P)

CN34

2

(6P)

CNFC1

2

(3P)

CN20

3

(3P)

CN3S

(3P)

CN35

(3P)

CN3D

1

(3P)

CN33

(2P)

CN06

3

(2P)

CN09

2A F

250VAC

F01

65432

1

5322413

625

112

3

5

3

4

4325

1

2

3

6217

3

1

2

1122

1

3

8

1

763211

4

423

1

231

3

24121

SW3-10 are OFF for Model 200.

and ON for Model 250.

VK1 VG1

VK2 VG2

WK1 WG1

WK2

(Fancon board)

Fan control board

WG2

123

54321 12345

6

5

UK2

UK1

UG1

5

Black

White

4

UG2

Red

V

CN04

Black

8A F

600VAC

321

4

MF

L3

8A F

600VAC

F1

L2

W

L3

White

L1

F2

L2

Red

L1

U

V

VG2

VK2

VG1

VK1

WG1

W

WK2

WK1

UK2

U

UG1

SCRM

UG2

UK1

WG2

CNMF

K

G

K

G

K

G

K

G

K

G

K

G

2

5

display

self-diagnosis

LED for

R6

5

TH10

PE

L3

N

1

L1

M1

M2

S

L2

4

3

CNRT1

(5P)

1

2

Terminal

Block

Noise

Filter

Crank case heater

(Compressor)

Cord heater

(Accumulator liquid

level detect)

switch

High Pressure

Fan motor

(Heat exchanger)

Fuse

Terminal Block

Diode stack

to TB1A

TH9

Appliance

PURY-P200/250YMF-B

PURY-200/250YMF-B

Difference

All exists

” 2” are not existed

2 PURY-(P)200·250YMF-B

–27–

FLAG8 always lights at

microcomputer power

ON

(Front)

Inverter

Controller

Box

TH4TH3

ACCUMULATOR

63LS

SV1

SV2

TH10

Blown

Oil

separator

21S4

63H

63HS

TH1

SLEV

MC

FLAG8

Check display1

(Blinking)

Relay output

display

(Lighting)

LD1

FLAG8

FLAG1

FLAG2

FLAG3

FLAG4

FLAG5

FLAG6

FLAG7

FLAG5

SV2

FLAG2 FLAG4FLAG3

Display at LED lighting(blinking)Remarks SW1 operation

76543218

Always

lighting

Display

FLAG6

SV1

Crankcase

heater

21S4

FLAG1 FLAG7

(at factory shipment)

During

compres-

sor run

ON:1

OFF:0

109

For PURY-(P)200/250YMF-B

*2

51 1102

*please refer to the service handbook about other switch settings of LED display.

SV6

SV5

SV4

SV3

TH2

TH9

TH7

TH6

*2

TH5

Display the address and error code by turns

76543218

ON:1

OFF:0

109

SV3 SV4

SV5 SV6 SSR

NameSymbol

MF1

DCL

Symbol

Radiator panelFan

(Power factor improvement)

Choke coil(Transmission)L2

SV1,SV2

DC reactor

DCCT

52C

TH1

Current Sensor

(Inverter main circuit)

THHS

ZNR4 Electronic expansion valve(Oil return)

63HS

Solenoid valve (Discharge-suction bypass)

4-way valve21S4

SLEV

High pressure sensor

Low pressure sensor63LS

NameSymbol

Compressor shell temp.

Radiator panel temp. detect

Lower

Symbol

Aux. relay

Upper

Accumurator liquid

High pressure liquid temp.

temp. detect

OA temp. detect

Iiquid outlet temp.detect

Pipe temp. detect

at Sub-cool coil

Name

Magnetic contactor

Name

SSR Solid state relay TRM1~3 Power transistor module

TH10 *2

TH9 *2

TH7

TH6

X1,2,4~10

Saturation evapo. temp. detect

Discharge pipe temp. detectThermistor

Earth terminal

(Heat exchanger capacity control)

SV3~SV6

FB6 Ferrite core

Solenoid valve

Varistor

TH2 *2

TH4

TH5

TH3

Thermistor

Appliance Difference

PURY-P200/250YMF-B All exists

PURY-200/250YMF-B ”*2” are not existed

2 PURY-(P)200·250YMF-B

–28–

Symbol explanation

PE

3

2

1

3

2

1

EARTH

Terminal block

(for Transmission)

TB02

Terminal block

(for power source)

TB01

Note:TB02 is terminal block for transmission.

Never connect power line to it.

NameSymbol

Solenoid valve

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1 4A

SV1 4B

SV1 4C

SVM

TR

TH11 16

LEV1 4

PS1,3 Pressure sensor

Transmission line

Shield wire

* Only for CMB-P-V-D

/N 220V 240V 50Hz

Power source

BC Board

31

LEV1

TB01

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

SVM

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

SV1C

SV1A

SV1B

}

CN38

3

1

CNTR

CN02

CN12

153

31

7

5

3

1

7

5

3

1

7

5

3

1

7

5

3

1

TR

3

CNVCC1

12

X2

X1

X30

X4

X3

X31

X6

X5

X32

X8

X7

X33

X21

}

DC 30V

123456 654321654321654321

LEV4 LEV3 LEV2

1

2

3

CNP1

1

2

3

CNP2

1

2

3

CNP3

2

1

2

3

4

5

6

7

8

4

3

2

1

12321

CN03

CN13

CN10

CN11

CN08 CN07 CN06 CN05

L

N

TH11

TH12

TH13

TH14

TH15

TH16

PS1

PS3

20 22V

TB02

M2

M1

CN26

CN27

CN28

CN29

TB01

220 240V

CN36

3 CMB-P104V-D

CMB-P104V-E

–29–

4 CMB-P105V-D

CMB-P105V-E

Symbol explanation

PE

3

2

1

3

2

1

EARTH

Terminal block

(for Transmission)

TB02

Terminal block

(for power source)

TB01

Note:TB02 is terminal block for transmission.

Never connect power line to it.

NameSymbol

Solenoid valve

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1 5A

SV1 5B

SV1 5C

SVM

TR

TH11 16

LEV1 4

PS1,3 Pressure sensor

Transmission line

Shield wire

* Only for CMB-P-V-D

/N 220V 240V 50Hz

Power source

BC Board

31

LEV1

TB01

16

15

2

1

2

1

14

13

12

11

10

9

8

7

6

5

4

3

2

1

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

SV1C

SV1A

SV1B

}

CN38

3

1

CNTR

CN02

CN12

153

31

7

5

3

1

7

5

3

1

7

5

3

1

7

5

3

1

TR

3

CNVCC1

12

X2

X1

X30

X4

X3

X31

X6

X5

X32

X8

X7

X33

X21

}

DC 30V

123456 654321654321654321

LEV4 LEV3 LEV2

1

2

3

CNP1

1

2

3

CNP2

1

2

3

CNP3

2

1

2

3

4

5

6

7

8

4

3

2

1

12321

CN03

CN13

CN10

CN11

CN08 CN07 CN06 CN05

L

N

TH11

TH12

TH13

TH14

TH15

TH16

PS1

PS3

20 22V

TB02

M2

M1

CN26

CN27

CN28

CN29

TB01

220 240V

SV5C

SV5A

SV5B

7

5

3

1

X10

X9

X34

CN30

SVM

CN36

–30–

5 CMB-P106V-D

CMB-P106V-E

PE

3

2

1

3

2

1

EARTH

Note:TB02 is terminal block for transmission.

Never connect power line to it.

Transmission line

Shield wire

* Only for CMB-P-V-D

/N 220V 240V 50Hz

Power source

BC Board

31

LEV1

TB01

SV6B SV6A SV6C

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

SV5C

SV5A

SV5B

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

SVM

SV1C

SV1A

SV1B

}

4321

1234

CN38

3

1

CNTR

CN02

CN12

153

31

7

5

3

1

7

5

3

1

7

5

3

1

7

5

3

1

7

5

3

1

7

5

3

1

TR

3

CNVCC1

12

X2

X1

X30

X4

X3

X31

X6

X5

X32

X8

X7

X33

X10

X9

X34

X12

X11

X35

X21

}

DC 30V

123456 654321654321654321

LEV4 LEV3 LEV2

1

2

3

CNP1

1

2

3

CNP2

1

2

3

CNP3

2

1

2

3

4

5

6

7

8

4

3

2

1

12321

CN03

CN13

CN10

CN11

CN08 CN07 CN06 CN05

L

N

TH11

TH12

TH13

TH14

TH15

TH16

PS1

PS3

20 22V

TB02

M2

M1

CN26

CN27

CN28

CN29

CN30

CN31

TB01

220 240V

CN36

Symbol explanation

Terminal block

(for Transmission)

TB02

Terminal block

(for power source)

TB01

NameSymbol

Solenoid valve

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1 6A

SV1 6B

SV1 6C

SVM

TR

TH11 16

LEV1 4

PS1,3 Pressure sensor

–31–

6 CMB-P108V-D

CMB-P108V-E

* Only for CMB-P-V-E

PE

3

2

1

3

2

1

EARTH

}

Power source

}}

L

N

Power source

/N 220V 240V 50Hz

Note:TB02 is terminal block for transmission.

Never connect power line to it.

Transmission line

Shield wire

SV10B

SV10A SV10C

SV9B SV9A SV9C

BC Board

CN38

1

3

1

CNTR

CN50

CN51

7654321123456

CN02

CN12

153

31

7

5

3

1

7

5

3

1

7

5

3

1

7

5

3

1

7

5

3

1

7

5

3

1

3

TR

3

CNVCC1

12

X2

X1

X30

X4

X3

X31

X6

X5

X32

X8

X7

X33

X10

X9

X34

X12

X11

X35

X21

}

DC 30V

12345 6 654321654321654321

LEV4 LEV3 LEV2 LEV1

1

2

3

CNP1

1

2

3

CNP2

1

2

3

CNP3

2

1

2

3

4

5

6

7

8

4

3

2

1

123

21

CN03

CN13

CN10

CN11

CN08 CN07 CN06 CN05

CN36

TH11

TH12

TH13

TH14

TH15

TH16

PS1

PS3

20 22V

TB02

M2

M1

CN26

CN27

CN28

CN29

CN30

CN31

TB01

220 240V

LEV1

7654321

CN35

TB01

SV6B SV6A SV6C

SVM

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

RELAY4 Board

SV5C

SV5A

SV5B

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

CN32

CN33

CN34

CN39

3

1

SV7C

SV7A

SV7B

SV8C

SV8A

SV8B

SV1C

SV1A

SV1B

X14

X13

X36

X37

X15

X16

98765432116 15 1011121314

12345678910111213141516

X18

X17

X38

X39

X19

X20

CN52

5731753175317533 31

Symbol explanation

Terminal block

(for Transmission)

TB02

Terminal block

(for power source)

TB01

NameSymbol

Solenoid valve

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1 8A

SV1 8B

SV1 8C

SVM

TR

TH11 16

LEV1 4

PS1,3 Pressure sensor

–32–

7 CMB-P1010V-D

CMB-P1010V-E

* Only for CMB-P-V-E

PE

3

2

1

3

2

1

EARTH

}

Power source

}}

L

N

Power source

/N 220V 240V 50Hz

Note:TB02 is terminal block for transmission.

Never connect power line to it.

Transmission line

Shield wire

SV10B

SV10A SV10C

SV9B SV9A SV9C

BC Board

CN38

1

3

1

CNTR

CN50

CN51

7654321123456

CN02

CN12

153

31

7

5

3

1

7

5

3

1

7

5

3

1

7

5

3

1

7

5

3

1

7

5

3

1

3

TR

3

CNVCC1

12

X2

X1

X30

X4

X3

X31

X6

X5

X32

X8

X7

X33

X10

X9

X34

X12

X11

X35

X21

}

DC 30V

12345 6 654321654321654321

LEV4 LEV3 LEV2 LEV1

1

2

3

CNP1

1

2

3

CNP2

1

2

3

CNP3

2

1

2

3

4

5

6

7

8

4

3

2

1

123

21

CN03

CN13

CN10

CN11

CN08 CN07 CN06 CN05

CN36

TH11

TH12

TH13

TH14

TH15

TH16

PS1

PS3

20 22V

TB02

M2

M1

CN26

CN27

CN28

CN29

CN30

CN31

TB01

220 240V

LEV1

7654321123456

CN35

TB01

SV6B SV6A SV6C

SVM

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

RELAY4 Board

SV5C

SV5A

SV5B

SV4B

SV4A

SV4C

SV3B

SV3A

SV3C

SV2B

SV2A

SV2C

CN32

CN33

CN34

CN39

3

1

SV7C

SV7A

SV7B

SV8C

SV8A

SV8B

SV1C

SV1A

SV1B

X14

X13

X36

X37

X15

X16

98765432116 15 1011121314

12345678910111213141516

X18

X17

X38

X39

X19

X20

CN52CN53

5731753175317533 31

Symbol explanation

Terminal block

(for Transmission)

TB02

Terminal block

(for power source)

TB01

NameSymbol

Solenoid valve

Expansion valve

Thermister sensor

Transformer

NameSymbol

SV1 10A

SV1 10B

SV1 10C

SVM

TR

TH11 16

LEV1 4

PS1,3 Pressure sensor

–33–

8 CMB-P1013V-E

PE

EARTH

1

2

3

1

2

3

TB02

TB01

Name

Symbol

Terminal block

(for Transmission)

Solenoid valve

Terminal block

(for power source)

Pressure sensor

Expansion valve

Thermister sensor

Transformer

Name

SV1~13A

SV1~13B

SV1~13C

SVM

Symbol

TR

TH11~16

LEV1,3

PS1,3

M1

M2

DC 30V

}

Shield wire

Transmission line

Power source

}

L

N

Power source

~/N 220V~240V 50Hz

RELAY10

Board

BC Board

CN39

13

654321 1234567

CN51

CN50

135

CN12

13

CNOUT3

CNOUT1

1

3

5

7

1

3

5

7

1

3

5

7

1

3

5

7

1

3

5

7

1

3

5

7

1

3

5

7

1

3

5

7

5

3

1

1571571357

13

21

CNVCC2

3

CN42

X46

X47

X48

1

2

3

8

7

6

5

4

3

2

1

4

CNOUT2

CNOUT4

CN41

CN40

X41

X44

X40

X43

X42

X45

X20

X18

X19

X17

X39

X38

3

CNVCC1

12

X16

X15

X37

X36

X13

X14

X2

X1

X30

X4

X3

X31

X6

X5

X32

X8

X7

X33

X10

X9

X34

X12

X11

X35

X21

6 5432

1

6 5432

1

LEV3 LEV1

1

2

3

CNP1

1

2

3

CNP3

2

1

2

3

4

5

6

7

8

4

3

2

1

12321

CN03

CN02

CN13

CN10

CN11

CN07 CN05

33

CN34

CN33

1357

CN32

TH11

TH12

TH13

TH14

TH15

TH16

TR

TB02

CN38

CN26

CN27

CN28

CN29

CN30

CN31

TB01

CN35

3

1

CNTR

4

1

2

3

4

5

6

7

8

3

2

1

SV1B

SV1A

SV1C

SV2C

SV2A

SV2B

SV3C

SV3A

SV3B

SV4C

SV4A

SV4B

SV5B

SV5A

SV5C

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

SV9C

SV9A

SV9B

SV10C

SV10A

SV10B

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

14 13 12 11 101516 123456789

SV8B SV8A SV8C

SV7B SV7A SV7C

SVM

SV6C

SV6A

SV6B

SV11C

SV11A

SV11B

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

9

8

7

6

5

4

3

2

1

16

15

14

13

12

11

10

SV12C

SV12A

SV12B

SV13C

SV13A

SV13B

PS1

PS3

Note : 1. TB02 is transmission terminal block.

Never connect power line to it.

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

as follows : SW1 : 0, SW2:0.

20 22V 220 240V

CN36

–34–

9 CMB-P1016V-E

PE

EARTH

1

2

3

1

2

3

TB02

TB01

Name

Symbol

Terminal block

(for Transmission)

Solenoid valve

Terminal block

(for power source)

Pressure sensor

Expansion valve

Thermister sensor

Transformer

Name

SV1~16A

SV1~16B

SV1~16C

SVM

Symbol

TR

TH11~16

LEV1,3

PS1,3

M1

M2

DC 30V

}

Shield wire

Transmission line

Power source

}

L

N

Power source

~/N 220V~240V 50Hz

CN39

13

654321 1234567

CN51

CN50

135

CN12

13

CNOUT3

CNOUT1

1

3

5

7

1

3

5

7

1

3

5

7

1

3

5

7

1

3

5

7

1

3

5

7

1

3

5

7

1

3

5

7

5

3

1

1571571357

13

21

CNVCC2

3

CN42

X46

X47

X48

1

2

3

8

7

6

5

4

3

2

1

4

CNOUT2

CNOUT4

CN41

CN40

X41

X44

X40

X43

X42

X45

X20

X18

X19

X17

X39

X38

3

CNVCC1

12

X16

X15

X37

X36

X13

X14

X2

X1

X30

X4

X3

X31

X6

X5

X32

X8

X7

X33

X10

X9

X34

X12

X11

X35

X21

6 5432

1

6 5432

1

LEV3 LEV1

1

2

3

CNP1

1

2

3

CNP3

2

1

2

3

4

5

6

7

8

4

3

2

1

12321

CN03

CN02

CN13

CN10

CN11

CN07 CN05

33

CN34

CN33

1357

CN32

TH11

TH12

TH13

TH14

TH15

TH16

TR

TB02

CN38

CN26

CN27

CN28

CN29

CN30

CN31

TB01

CN35

3

1

CNTR

4

1

2

3

4

5

6

7

8

3

2

1

SV1B

SV1A

SV1C

SV2C

SV2A

SV2B

SV3C

SV3A

SV3B

SV4C

SV4A

SV4B

SV5B

SV5A

SV5C

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

SV9C

SV9A

SV9B

SV10C

SV10A

SV10B

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

14 13 12 11 101516 123456789

SV8B SV8A SV8C

SV7B SV7A SV7C

SVM

SV6C

SV6A

SV6B

SV11C

SV11A

SV11B

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

9

8

7

6

5

4

3

2

1

16

15

14

13

12

11

10

SV12C

SV12A

SV12B

SV13C

SV13A

SV13B

PS1

PS3

Note : 1. TB02 is transmission terminal block.

Never connect power line to it.

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

as follows : SW1 : 0, SW2:0.

1

2

1

3

5

7

1

3

5

7

1

3

5

7

X57

X53

X52

X56

X55

CN45

CN44

CN43

X50

SV14C

SV14A

SV14B

SV15A

SV15B

SV16C

SV16A

SV16B

SV15C

X54

X51

X49

RELAY10

Board

BC Board

20 22V 220 240V

CN36

–35–

[5] Standard Operation Data

(1) Cooling operation 1 PU(H)Y-200·250YMF-B

Outdoor unit

Items

PUHY-200YMF-B

PUY-200YMF-B

PUHY-250YMF-B

PUY-250YMF-B

Indoor

Outdoor

Quantity

Quantity in operation

Model

Main pipe

Branch pipe

Total piping length

27.0/19.5 27.0/19.5

35.0/24.0 35.0/24.0

44

63 63 50 25 125 40 63 25

55

10 10 10 10 10 10 10 10

45 45

Hi Hi Hi Hi Hi Hi Hi Hi

12.2 13.8

440 440 380 280 430 350 440 280

80 85

111 111

22.0/4.80 20.3/4.7

(2.16/0.47) (1.99/0.46)

93 95

40 42

75

97

710

64

30 30

65

69 60

27 27

86

26 26

10 10

15.1 13.8 19.0 17.4

380 415 380 415

270/75 270/75 340/95 340/95

Indoor unit fan notch

Refrigerant volume

Total current

Volts/Frequency

Indoor unit

SC (LEV1)

Oil return (SLEV)

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

Pressure

DB/WB

Set

–

m

–

kg

A

V

V/Hz

Pulse

kg/cm

2

G

(MPa)

˚C

Condition

Sectional temperature

Outdoor unit

LEV opening

Discharge (TH1)

Heat exchanger outlet (TH5)

Accumulator

Suction (Comp)

TH2

Liquid level

Shell bottom (Comp)

SCC outlet (TH7)

Bypass outlet (TH8)

LEV inlet

Heat exchanger outlet

Inlet

Outlet

Upper (TH4)

Lower (TH3)

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

–36–

PUHY-P200·250YMF-B

Outdoor unit

Items

PUHY-P200YMF-B PUHY-P250YMF-B

Indoor

Outdoor

Quantity

Quantity in operation

Model

Main pipe

Branch pipe

Total piping length

27.0/19.5 27.0/19.5

35.0/24.0 35.0/24.0

44

63 63 50 25 125 40 63 25

55

10 10 10 10 10 10 10 10

45 45

Hi Hi Hi Hi Hi Hi Hi Hi

12.7 14.3

440 440 380 280 430 350 440 280

80 85

111 111

20.5/4.0 21.9/3.9

(2.01/0.39) (2.15/0.38)

96 96

40 42

77

10 10

12 15

–1 –1

11 11

34 34

19 19

80 85

27 27

86

26 26

10 10

0.23 0.23

15.9 14.5 19.9 18.2

380 415 380 415

270/75 270/75 340/95 340/95

Indoor unit fan notch

Refrigerant volume

Total current

Volts/Frequency

Indoor unit

SC (LEV1)

Oil return (SLEV)

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

Pressure

DB/WB

Set

–

m

–

kg

A

V

V/Hz

Pulse

kg/cm

2

G

(MPa)

˚C

Condition

Sectional temperature

Outdoor unit

LEV opening

Inlet

Outlet

Upper (TH4)

Lower (TH3)

Outdoor unit

Indoor unit

αOC

Ambient temp.

Indoor unit

Piping

Discharge (TH1)

Heat exchanger outlet (TH5)

Accumulator

Suction (Comp)

CS circuit (TH2)

CS circuit (TH9)

Liquid level

Shell bottom (Comp)

SCC outlet (TH7)

Bypass outlet (TH8)

LEV inlet

Heat exchanger outlet

–37–

380 415 380 415

270/75 270/75 340/95 340/95

15.1 13.8 19.0 17.4

PURY-200·250YMF-B

Outdoor unit

Items

PURY-P200YMF-B PURY-P250YMF-B

Indoor

Outdoor

Quantity

Quantity in operation

Model

Main pipe

Branch pipe

Total piping length

380-415V/50Hz 380-415V/50Hz

27.0/19.5 27.0/19.5

35.0/24.0 35.0/24.0

44

63 63 50 25 125 40 63 25

55

55555555

25 25

Hi Hi Hi Hi Hi Hi Hi Hi

15.4 17.2

330 460 430 300 410 330 460 300

2000 2000 360 60 2000 2000 400 60

180 180

20.7/5.0 19.4/4.0

(2.03/0.49) (1.90/0.39)

19.6/19.6 18.3/18.3

(1.92/1.92) (1.79/1.79)

107 110

50 47

77

10 10

12 12

40 40

35 35

75 70

26 30

15 15

Indoor unit fan notch

Refrigerant volume

Compressor volts / Frequency

Outdoor unit

Indoor unit

BC controller (1, 2, 3, 4)

Oil return

High pressure/Low pressure

BC controller liquid/Intermediate

Pressure

V/Hz

DB/WB

Q’ty

–

m

–

kg

V

V/Hz

A

Pulse

kg/cm2G

(MPa)

˚C

Condition

Sectional temperature

LEV opening

Discharge (TH1)

Heat exchanger outlet (TH5)

Accumulator

Suction (Comp)

Liquid level

Shell bottom (Comp)

LEV inlet

Heat exchanger outlet

Inlet

Outlet

Upper (TH4)

Lower (TH3)

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

–38–

PURY-P200·250YMF-B

Outdoor unit

Items

PURY-P200YMF-B PURY-P250YMF-B

Indoor

Outdoor

Quantity

Quantity in operation

Model

Main pipe

Branch pipe

Total piping length

380-415V/50Hz 380-415V/50Hz

27.0/19.5 27.0/19.5

35.0/24.0 35.0/24.0

44

63 63 50 25 125 40 63 25

55

55555555

25 25

Hi Hi Hi Hi Hi Hi Hi Hi

15.9 17.7

330 460 430 300 410 330 460 300

2000 2000 360 60 2000 2000 400 60

180 180

23.5/5.3 23.0/5.1

(2.30/0.52) (2.25/0.50)

22.4/22.4 21.9/21.9

(2.20/2.20) (2.15/2.15)

97 105

50 47

77

10 10

12 12

75

40 40

35 35

75 70

26 30

15 15

0.23 0.23

380 415 380 415

270/75 270/75 340/95 340/95

15.9 14.5 19.9 18.2

Indoor unit fan notch

Refrigerant volume

Compressor volts / Frequency

Outdoor unit

Indoor unit

BC controller (1, 2, 3, 4)

Oil return

High pressure/Low pressure

BC controller liquid/Intermediate

Pressure

V/Hz

DB/WB

Q’ty

–

m

–

kg

V

V/Hz

A

Pulse

kg/cm2G

(MPa)

˚C

Condition

Sectional temperature

LEV opening

Discharge (TH1)

Heat exchanger outlet (TH5)

Accumulator

Suction (Comp)

CS circuit (TH2)

Liquid level

Shell bottom (Comp)

LEV inlet

Heat exchanger outlet

Inlet

Outlet

Upper (TH4)

Lower (TH3)

Outdoor unit

Indoor unit

αOC

Ambient temp.

Indoor unit

Piping

–39–

2 Heating operation PUHY-200·250YMF-B

Outdoor unit

Items

PUHY-200YMF-B PUHY-250YMF-B

Indoor

Outdoor

Quantity

Quantity in operation

Model

Main pipe

Branch pipe

Total piping length

21.0/– 21.0/–

7.0/6.0 7.0/6.0

44

63 63 50 25 125 40 63 25

55

10 10 10 10 10 10 10 10

45 45

Hi Hi Hi Hi Hi Hi Hi Hi

12.2 13.8

510 510 450 280 440 420 510 280

00

87 87

17.5/3.7 17.5/3.7

(1.72/0.36) (1.72/0.36)

80 85

68

–1 –2

–2 –2

35 38

–1 –1

50 60

71 71

33 33

14.0 12.8 17.7 16.2

380 415 380 415

280/83 280/83 355/102 355/102

Indoor unit fan notch

Refrigerant volume

Total current

Volts/Frequency

Indoor unit

SC (LEV1)

Oil return (SLEV)

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

Pressure

DB/WB

Set

–

m

–

kg

A

V

V/Hz

Pulse

kg/cm

2

G

(MPa)

˚C

Condition

Sectional temperature

Outdoor unit

LEV opening

Discharge (TH1)

Heat exchanger outlet (TH5)

Accumulator

Suction (Comp)

TH2

Liquid level

Shell bottom (Comp)

Heat exchanger outlet

LEV inlet

Inlet

Outlet

Upper (TH4)

Lower (TH3)

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

–40–

PUHY-P200·250YMF-B

Outdoor unit

Items

PUHY-P200YMF-B PUHY-P250YMF-B

Indoor

Outdoor

Quantity

Quantity in operation

Model

Main pipe

Branch pipe

Total piping length

21.0/– 21.0/–

7.0/6.0 7.0/6.0

44

63 63 50 25 125 40 63 25

55

10 10 10 10 10 10 10 10

45 45

Hi Hi Hi Hi Hi Hi Hi Hi

12.7 14.3

510 510 450 280 440 420 510 280

00

87 87

18.5/3.7 21.4/3.7

(1.81/0.36) (2.10/0.36)

75 78

–1 –1

–2 –2

–3 –3

00

36 36

–3 –3

60 70

80 80

39 39

0.28 0.28

14.4 13.2 18.4 16.8

380 415 380 415

270/75 270/75 340/95 340/95

Indoor unit fan notch

Refrigerant volume

Total current

Volts/Frequency

Indoor unit

SC (LEV1)

Oil return (SLEV)

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

Pressure

DB/WB

Set

–

m

–

kg

A

V

V/Hz

Pulse

kg/cm

2

G

(MPa)

˚C

Condition

Sectional temperature

Outdoor unit

LEV opening

Discharge (TH1)

Heat exchanger inlet (TH5)

Accumulator

Suction (Comp)

CS circuit (TH2)

CS circuit (TH9)

Liquid level

Shell bottom (Comp)

Heat exchanger outlet

LEV inlet

Inlet

Outlet

Upper (TH4)

Lower (TH3)

Outdoor unit

Indoor unit

αOC

Ambient temp.

Indoor unit

Piping

–41–

PURY-200·250YMF-B

Outdoor unit

Items

PURY-200YMF-B PURY-250YMF-B

Indoor

Outdoor

Quantity

Quantity in operation

Model

Main pipe

Branch pipe

Total piping length

380-415V/50Hz 380-415V/50Hz

21.0/– 21.0/–

7.0/6.0 7.0/6.0

44

63 63 50 25 125 40 63 25

55

55555555

25 25

Hi Hi Hi Hi Hi Hi Hi Hi

15.4 17.2

600 950 750 400 750 600 950 400

60 60 1300 60 60 60 1800 60

115 180

18.5/3.6 18.0/3.7

(1.81/0.35) (1.76/0.36)

17.5/14.0 17.0/14.0

(1.72/1.37) (1.67/1.37)

100 95

–2 –1

–1 –1

–4 –2

–1 –1

18 22

–1 –1

45 40

38 40

80 85

380 415 380 415

285/85 285/85 360/105 360/105

14.0 12.8 17.7 16.2

Indoor unit fan notch

Refrigerant volume

Compressor volts / Frequency

Outdoor unit total current

Indoor unit

BC controller (1, 2, 3, 4)

Oil return

High pressure/Low pressure

BC controller liquid/Intermediate

Pressure

V/Hz

DB/WB

Q’ty

–

m

–

kg

V

V/Hz

A

Pulse

kg/cm2G

(MPa)

˚C

Condition

Sectional temperature

LEV opening

Discharge (TH1)

Heat exchanger outlet (TH5)

Accumulator

Suction (Comp)

Liquid level

Shell bottom (Comp)

LEV inlet

Heat exchanger outlet

Inlet

Outlet

Upper (TH4)

Lower (TH3)

Outdoor unit

Indoor unit

Ambient temp.

Indoor unit

Piping

–42–

PURY-P200·250YMF-B

Outdoor unit

Items

PURY-P200YMF-B PURY-P250YMF-B

Indoor

Outdoor

Quantity

Quantity in operation

Model

Main pipe

Branch pipe

Total piping length

380-415V/50Hz 380-415V/50Hz

21.0/– 21.0/–

7.0/6.0 7.0/6.0

44

63 63 50 25 125 40 63 25

55

55555555

25 25

Hi Hi Hi Hi Hi Hi Hi Hi

15.9 17.7

600 950 750 400 750 600 950 400

60 60 1300 60 60 60 1800 60

115 180

18.5/3.6 18.0/3.7

(1.96/0.38) (1.86/0.34)

17.5/14.0 17.0/14.0

(1.86/1.57) (1.76/1.47)

100 95

–2 –1

–1 –1

–4 –2

–1 –1

75

18 22

–1 –1

45 40

38 40

80 85

0.28 0.28

380 415 380 415

280/80 280/80 340/95 340/95

14.4 13.2 18.4 16.8

Indoor unit fan notch

Refrigerant volume

Compressor volts/Frequency

Outdoor unit total current

Indoor unit

BC controller (1, 2, 3, 4)

Oil return

High pressure/Low pressure

BC controller liquid/Intermediate

Pressure

V/Hz

DB/WB

Q’ty

–

m

–

kg

V

V/Hz

A

Pulse

kg/cm2G

(MPa)

˚C

Condition

Sectional temperature

LEV opening

Discharge (TH1)

Heat exchanger outlet (TH5)

Accumulator

Suction (Comp)

CS circuit

Liquid level

Shell bottom (Comp)

LEV inlet

Heat exchanger outlet

Inlet

Outlet

(TH2)

Upper (TH4)

Lower (TH3)

Outdoor unit

Indoor unit

αOC

Ambient temp.

Indoor unit

Piping

–43–

[6] Function of Dip SW and Rotary SW

(1) Outdoor unit 1 PU(H)Y-200·250YMF-B

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

1

2

3

4

5 6

7

8

9

10

1

2

3

4

5 6 7

8 9

10

1 2 3

Unit address setting For self diagnosis/ operation monitoring

–

Centralized control switch

Deletion of connection information.

Deletion of error history.

Adjustment of refrigerant volume

–

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

–

Models Target Pd (High pressure)

– –

Models

– – –

Set on 51~100 with the dial switch.

LED monitering display

–

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

–

Ordinary control

–

Errors valid.

Ordinary control

50 min.

– –

SW3-2 Function invalid

Stop all indoor units.

-2°C

8°C

(no operation)

–

PUHY-YMF-B

18kg/cm2G

(1.76MPa)

– –

Model 200

– – –

–

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

Refrigerant volume adjustment operation.

–

Disregard errors.

Start forced defrosting.

90 min.

– –

SW3-2 Function valid

All indoor units test operation ON.

0°C

15°C

2000

–

PUY-YMF-B

20kg/cm2G

(1.96MPa)

– –

Model 250

– – –

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)

–

When switching on the power. During normal operation when power is on.

– –

When switching on the power.

– – –

During normal operation when power is on.

Invalid 2 hours after compressor starts.

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.

–44–

2 PUHY-P200·250YMF-B

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

1

2

3

4

5 6

7

8

9

10

1

2

3

4

5 6 7

8 9

10

1

2

3

Unit address setting For self diagnosis/ operation monitoring

–

Centralized control switch

Deletion of connection information.

Deletion of error history.

Adjustment of Refrigerant Volume

–

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

– –

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.

–

Ordinary control

–

Errors valid.

Ordinary control

39 min.

– –

SW3-2 Function invalid

Stop all indoor units.

–10°C

8°C

(no operation)

– –

49˚C

– –

Model P200

Invalid

–

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

Refrigerant volume adjustment operation.

–

Disregard errors.

Start forced defrosting.

90 min.

– –

SW3-2 Function valid

All indoor units test operation ON.

–7°C

15°C

2000

– –

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 normal operation when power is on.

– –

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

–

During normal operation when power is on.

Invalid 2 hours after compressor starts.

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%

–45–

3 PURY-200·250YMF-B

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

1

2

3

4

5 6

7

8

9

10

1

2

3

4

5 6

7

8 9

10

1 2 3

Unit address setting For self diagnosis/ operation monitoring

–

Centralized control switch

Deletion of connection information.

Deletion of error history.

Adjustment of refrigerant volume

–

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.

–

Pump down operation

Target Td (High pressure) at Heating

– –

Models

– – –

Set on 51~100 with the dial switch.

LED monitering display

–

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

–

Ordinary control

–

Errors valid.

Ordinary control

50 min.

– –

SW3-2 Function invalid

Stop all indoor units.

–6°C

8°C

–

Invalid

49˚C

– –

Model 200

– – –

–

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

Refrigerant volume adjustment operation.

–

Disregard errors.

Start forced defrosting.

90 min.

– –

SW3-2 Function valid

All indoor units test operation ON.

–3°C

15°C

–

Valid

53˚C

– –

Model 250

– – –

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.

– –

When switching on the power.

– – –

During normal operation when power is on.

Invalid 2 hours after compressor starts.

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.

–46–

4 PURY-P200·250YMF-B

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

1

2

3

4

5 6

7

8

9

10

1

2

3

4

5 6

7

8 9

10

1

2

3

Unit address setting For self diagnosis/ operation monitoring

–

Centralized control switch

Deletion of connection information.

Deletion of error history.

Adjustment of refrigerant Volume

–

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.

–

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.

–

Ordinary control

–

Errors valid.

Ordinary control

50 min.

– –

SW3-2 Function invalid

Stop all indoor units.

–8°C

8°C

–

Invalid

49˚C

– –

Model P200

Invalid

–

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

Refrigerant volume adjustment operation.

–

Disregard errors.

Start forced defrosting.

90 min.

– –

SW3-2 Function valid

All indoor units test operation ON.

–5°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.

– –

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

–

During normal operation when power is on.

Invalid 2 hours after compressor starts.

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%

–47–

(2) Indoor unit

DIP SW1, 3

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

table below.)

Note 2: 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 to reset.)

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

Setting of DIP SW2

Switch SW name

Operation by SW

Switch set timing

OFF ON OFF ON

Remarks

SW1

SW3

1

2

3

4

5

6

7

8

9

10

1

2

3

4

5

6

7

8

Room temp. sensor position

Clogged filter detect.

Filter duration

OA intake

Remote display select.

Humidifier control

Heating thermo. OFF airflow

Power failure automatic return

Power source start/stop

Model selection

Louver

Vane

Vane swing function

Vane horizontal angle

Vane angle set for cooling

–

Heating 4deg up

Indoor unit inlet

None

100h

Ineffective

Fan output display

At stationary heating

Very low speed

SW1-7 setting

Ineffective

Heat pump

None

1st setting

Down blow B, C

–

Effective

Built in remote controller

Provided

2500h

Effective

Thermo. ON signal display

Always at heat

Low speed

Set airflow

Effective

Cool.only

Provided

2nd setting

Horizontal

–

Ineffective

At unit stopping

(at remote

controller OFF)

Always 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

Ineffective (OFF) setting for floor standing

Model

Switch

SW1

SW3

3

6

3

4

6

8

PLFY-P PEFY-P PDFY-P PFFY-P PCFY-P PKFY-P

VKM VLMD VM VM VLRM, VLEM VGM VAM VGM

ON OFF ON OFF ON OFF

ON OFF

ON OFF ON

ON OFF ON OFF ON

OFF ON OFF

Model P20 P25 P32 P40 P50 P63

Capacity (model name) code

4 5 6 8 10 13

SW2 setting

Model P71 P80 P100 P125

Capacity (model name) code

14 16 20 25

SW2 setting

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

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

ON

OFF

–48–

Setting of DIP SW4 Setting of DIP SW5

Model Circuit board used

SW4

1234

––––

ON ON ON OFF

ON OFF ON OFF

OFF OFF OFF ON

ON OFF OFF ON

OFF ON OFF ON

OFF OFF ON ON

––––

OFF OFF OFF –

––––

OFF OFF ON –

Switch Function Operation by switch Switch set timing

SWA

SWB

SWC

PLFY-P-VLMD

PEFY-P20 ~ 63VM

PDFY-P20 ~ 80VM

PLFY-P40 ~ 63VKM

PLFY-P80 ~ 125VKM

PCFY-P-VGM

PKFY-P-VGM

PKFY-P-VAM

PFFY-P-VLEM, P-VLRM

PEFY-P80 ~ 125VM

PDFY-P100·125VM

1~3

1~2

Ceiling height setting

For options

Setting of air outlet opening

Airflow control

(PLFY-P-VKM) (PCFY-P-VGM) (PDFY-P-VM)

(PLFY-P-VLMD, PEFY-P-VM)

(PLFY-P-VKM)

(PLFY-P-VKM, PCFY-P-VGM, PKFY-P-VGM)

(PLFY-P-VLMD)

(PDFY-P-VM)

Phase control

Relay selection

* The ceiling

height is changed by SWB setting.

Ceiling height

3 3.5m 2 2.8m

1 2.3m

* As this switch is used by interlocking with SWC,

refer to the item of SWC for detail.

SWA

SWB

123

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

* Set to the option to install the high efficiency

filter

Always after powering

3

1

2

2-way

4-way

3-way

Option

Standard

SWC

3

1

SWA

2

Option

Standard

SWC

3

1

SWA

2

3

1

2

(3) BC controller unit

DIP SW4

*If the EPROM for the BC controller is WF30334, the controller is exclusively V-D type.

Function according to switch operation

When off When on

1 Models V-E type V-D type

2~8 –– –

Switch Function

SW4

3

1

2

3

1

2

220V 240V

Option

Standard

–49–

33

3 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.

4 Be sure that the crankcase 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.

1

2

1

2

3

–50–

(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 leak from connecting portions of each water piping.

Water is supplied to water supply tank, and float switch is operating.

Built-in optional parts

Mounting of drain water lifting-up 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.

1

2

3

4

5

Result

1

2

3

Work

Disassembling and assembling of drain water lifting-up mechanism

Mounting of float switch

Electric wiring

Float switch moves smoothly.

Float switch is mounted on mounting board straightly without deformation.

Float switch does not contact with copper pipe.

Wiring procedure is exactly followed.

Connector portion is tightly hooked.

Content of test run

Lead wire from control box not damaged.

Rubber cap properly inserted to drain water outlet of drain pan?

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

Drain pan and piping cover mounted without gap?

Drain pan hooked on cut projection of the mechanism?

Float switch installed without contacting with drain pan?

No mistakes in wiring?

Connectors connected surely and tightly?

No tension on lead wire when sliding control box?

1

2

3

1

2

3

Check point Result

Insulation pipe

No gap

–51–

–52–

(5) Check points for system structure

ex. PURY-200YMF-B

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.

Classification

Installation and piping

Power source wiring

Portion

1

2

3

4

5

6

7

8

1

2

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, 70m or less (total length : 220m) 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?

–53–

Classification

Transmission line

System set

Before starting

Portion Check item

1

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

2 1.25mm2 or more transmission line used?

(Remote controller 10m or less 0.75mm

2

)

3 2-core cable used for transmission line?

4 Transmission line apart from power source line by 5cm

or more?

5 One refrigerant system per transmission line?

6

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.)

7 • No connection trouble in transmission line?

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

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

Address numbers not duplicated?

Turned 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?

1

2

1

2

3

4

Trouble

Erroneous operation, error stop.

Error stop in case multiple-core cable is used.

Erroneous operation, error stop.

Not operate.

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.

–54–

[2] Test Run Method

Operation procedure

1

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

4

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.

–55–

4 GROUPING REGISTRATION OF INDOOR UNITS WITH REMOTE CONTROLLER

(1) Switch function

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

Registration/ ordinary mode selector switch

Registration/ordinary 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

C

D

E

F

G

H

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 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

ON/OFF

–

STAND BY DEFROST

INDOOR UNIT ADDRESS NO.

ERROR CODE OA UNIT ADDRESS NO.

CENTRALLY CONTROLLED

CLOCK

ON OFF

˚C

1Hr.

NOT AVAILABLE

˚C

CHECK MODE

FILTER

CHECK

TEST RUN

ON OFFCLOCK

FILTER

CHECK

TEST RUN

REMOTE CONTROLLER

NETWORK

PAR-F25MA

TEMP. TIMER SET

F Delete 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

A

B

+

FILTER

TEST RUN

CLOCK

ON OFF

Name Name of actual switch Description

of TEMP

of TIMER SET

–56–

(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.

1 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.

2 Retrieval/identification of group registration information of indoor units

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

3 Retrieval/identification of registration information

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

4 Deletion of group registration information of indoor units

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

5 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 instruction exclusively prepared for MELANS.)

–57–

(3) Group registration of indoor unit

1) Registration method

• Group registration of indoor unit ........................................................................ 1

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

FILTER

+ switch

(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

TEST RUN

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

to 001.

3 After completing the registration, 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).

• 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

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

1

Group setting mode

• Confirm the indoor unit address No.

• Confirm the connection of the transmission line.

ON/OFF

–

STAND BY DEFROST

ERROR CODE OA UNIT ADDRESS NO.

CENTRALLY CONTROLLED

CLOCK

ON OFF

˚C

1Hr.

NOT AVAILABLE

˚C

CHECK MODE

FILTER

CHECK

TEST RUN

ON OFFCLOCK

FILTER

CHECK

TEST RUN

REMOTE CONTROLLER

NETWORK

PAR-F25MA

TEMP. TIMER SET

INDOOR UNIT ADDRESS NO.

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

INDOOR UNIT ADDRESS NO

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

▲

▼

System example

Indoor units

Group

2 + 3

–58–

2) Method of retrieval/confirmation

• Retrieval/confirmation of group registration information on indoor unit............... 2

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 ................................................ 3

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.

ON/OFF

–

STAND BY DEFROST

ERROR CODE OA UNIT ADDRESS NO.

CENTRALLY CONTROLLED

CLOCK

ON OFF

˚C

1Hr.

NOT AVAILABLE

˚C

CHECK MODE

FILTER

CHECK

TEST RUN

ON OFFCLOCK

FILTER

CHECK

TEST RUN

REMOTE CONTROLLER

NETWORK

PAR-F25MA

TEMP. TIMER SET

INDOOR UNIT ADDRESS NO.

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

INDOOR UNIT ADDRESS NO

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)

1

–59–

3) Method of deletion

• Deletion of group registration information of indoor unit ...................................... 4

[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 2) 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).

ON/OFF

–

STAND BY DEFROST

INDOOR UNIT ADDRESS NO.

ERROR CODE OA UNIT ADDRESS NO.

CENTRALLY CONTROLLED

CLOCK

ON OFF

˚C

1Hr.

NOT AVAILABLE

˚C

CHECK MODE

FILTER

CHECK

TEST RUN

ON OFFCLOCK

FILTER

CHECK

TEST RUN

REMOTE CONTROLLER

NETWORK

PAR-F25MA

TEMP. TIMER SET

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

ON/OFF

–

STAND BY DEFROST

ERROR CODE OA UNIT ADDRESS NO.

CENTRALLY CONTROLLED

CLOCK

ON OFF

˚C

1Hr.

NOT AVAILABLE

˚C

CHECK MODE

FILTER

CHECK

TEST RUN

ON OFFCLOCK

FILTER

CHECK

TEST RUN

REMOTE CONTROLLER

NETWORK

PAR-F25MA

TEMP. TIMER SET

INDOOR UNIT ADDRESS NO.

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

INDOOR UNIT ADDRESS NO

ERROR CODE OA UNIT ADDRESS NO

˚C

ON/OFF

–

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

▼

▲

1 + 2

“– –” indicates the deletion completed.

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

2

–60–

4) Deletion of information on address not existing

• Deletion of information on address not existing ................................................... 5

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 Operate

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 (Room temperature control) switch (C),

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)

*

ON/OFF

–

STAND BY DEFROST

INDOOR UNIT ADDRESS NO.

ERROR CODE OA UNIT ADDRESS NO.

CENTRALLY CONTROLLED

CLOCK

ON OFF

˚C

1Hr.

NOT AVAILABLE

˚C

CHECK MODE

FILTER

CHECK

TEST RUN

ON OFFCLOCK

FILTER

CHECK

TEST RUN

REMOTE CONTROLLER

NETWORK

PAR-F25MA

TEMP. TIMER SET

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

3

2 Press the switch for

confirmation (E)

–61–

55

5 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 process-

ing 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

• In case unit is started within 2 hours after turning on power source at low ambient temperature (+5˚C or less), the unit does not start operating for 30 minutes at the maximum.

(3) Bypass, capacity control

• Solenoid valve consists of bypass solenoid valve (SV1, SV2) bypassing between high pressure side and low pressure sider. The following operation will be provided.

1) Bypass solenoid valves SV1 and SV2 (both “open” when turned on)

• PU(H)Y-200·250YMF-B : Y

• PUHY-P200·250YMF-B : Y-P

• PURY-200·250YMF-B : R2

• PURY-P200·250YMF-B : R2-P

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 operations

During 20Hz 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 20Hz operations (3 minutes after starting)

When discharge temperature rises (3 minutes after starting)

SV1

ON (Open) OFF (Close)

Turned on for 4 minutes

Always turned on

Turned on for 3 minutes

Always turned on

Always turned on.

–

When Pd reaches

27.5kg/cm2G (2.70MPa) or more

When Pd is 24kg/cm2G (2.35MPa) or less 30 seconds

SV2

ON (Open) OFF (Close)

–

Always turned on.

–

When Ps is 1.5kg/ cm2G (0.15MPa) or less

When low TH2 is –30˚C or less

When Pd reaches

26.5kg/cm2G (2.60MPa) or more

When Pd reaches

25.5kg/cm2G (2.50MPa) or more

Turned on when high pressure (Pd) exceeds pressure limit

When temp. exceeds 130˚C and Pb reaches 15kg/cm2G (1.47MPa) or more

When Ps is 2.5kg/ cm2G (0.25MPa) or more

When TH2 is –15˚C or more

When Pd is 23.5kg/ cm2G (2.30MPa) or less after 30 seconds

When Pd is 23kg/ cm2G (2.25MPa) or less after 30 seconds

When high pressure (Pd) is 20kg/cm2G (1.96MPa) or less

When discharge temp. is 115˚C or less

Object

Y Y-P R2 R2-P

❍❍❍❍

❍❍

❍❍❍

❍

❍❍

❍❍❍❍

Compressor

Bypass solenoid valve (SV1)

(4-minute)

(2-minute) (4-minute) (3-minute)

Start

Thermo. OFF

Thermo. ON

Defrosting time (*1)

Stop

–62–

(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 perfprmed at the rate of 2Hz/second across 20 ~ 105Hz range.

1) Frequency control starting

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

• 75Hz is the upper limit within 30 minutes at the first starting compressor after turning on power source.

2) Pressure limit The upper limit of high pressure (Pd) is set for each frequency. When the limit is exceeded, frequency is reduced every 10 seconds. (Frequency decrease rate (Hz) : 22% of the present value)

<(P)200YMF-B> <(P)250YMF-B>

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

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

• Operation temperature is 130˚C.

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.

• 20 sec after starting compressor or finishing defrostoing operations

• 20 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 (PU(H)Y-200·250YMF-B)

During 20Hz operations, frequency is backed up by turning on (opening) bypass valve (SV2).

• Cooling During 20Hz operations 3 minutes after starting compressor, bypass valve is turned on when TH2 is -30˚C or less, and turned off when TH2 is –15˚C or more.

• Heating During 20Hz operations 3 minutes after starting compressor, SV2 turned on when high pressure (Pd) exceeds pressure limit and turned off when Pd falls to 20kg/cm

2

G (1.96MPa) or less.

▼

–30˚C –15˚C

▼

ON

OFF

ON

OFF

20kg/cm2G 22kg/cm2G (1.96MPa) (2.16MPa)

–63–

3-2 Back up of frequency control by bypass valve (PUHY-P200·250YMF-B, PURY-(P)200·250YMF-B)

During 20Hz operations, frequency is backed up by turning on (opening) bypass valve (SV2).

• Cooling During 20Hz operations 3 minutes after starting compressor, bypass valve is turned on when, Ps is 1.5kg/cm

2

G (0.15MPa) or less and turned off when Ps is 2.5kg/cm2G (0.25MPa) or more.

• Heating During 20Hz operations 3 minutes after starting compressor, SV2 turned on when high pressure (Pd) exceeds pressure limit and turned off when Pd falls to 20kg/cm

2

G (1.96MPa) or less.

(5) Oil return control (Electronic expansion valve <SLEV>)

• Oil return LEV (SLEV) opening is dependent on compressor frequency and ambient temperature.

• SLEV is closed (0) when compressor stops, and SLEV is set (64) for 10 minutes after starting compressor.

(6) Subcool coil control (electronic expansion valve <LEV1>) : PU(H)Y-200·250YMF-B, PUHY-P200·250YMF-B

• 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 60 sec.

• 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 at defrosting.

(7) Defrost operation control

1 PU(H)Y-(P)200·250YMF-B

1) Starting of defrost operations

•

After integrated 39 min : P-YMF-B, 50 min : YMF-B of compressor operations, defrosting operations start when –10˚C

or less : P-YMF-B, –2˚C or less : YMF-B of piping temperature (TH5) is detected for 3 consecutive minutes.

• Forcible defrosting operations start by turning on forcible defrost switch (SW2-7) if 3 minutes have already elapsed after compressor start or completion of defrosting operations.

2) Completion of defrosting operations Defrosting operations stop when 10 min : P-YMF-B, 15 min : YMF-B have passed since start of defrosting operation, or piping temperature (TH5) reaches 8˚C or more. (Defrosting operations do not stop for 2 minutes after starting, except when piping temperature exceeds 20˚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.

▼

1.5kg/cm2G 2.5kg/cm2G (0.15MPa) (0.25MPa)

▼

20kg/cm2G 27kg/cm2G (1.96MPa) (2.65MPa)

▼

ON

OFF

ON

OFF

–64–

2 PURY-(P)200·250YMF-B

1) Starting of defrost operations

• After integrated 50 minutes of compressor operations, defrosting operations start when –8˚C : P-YMF-B, –6˚C : YMF-B or less of piping temperature (TH7) is detected for 3 consecutive minutes.

• Forcible defrosting operations start by turning on forcible defrost switch (SW2-7) if 3 minutes have already elapsed after compressor start or completion of defrosting operations.

2) Completion of defrosting operations Defrosting operations stop when 10 minutes have passed since start of defrosting operation, or piping temperature (TH5) reaches 8˚C or more. (Defrosting operations do not stop for 4 minutes after starting, except when piping temperature exceeds (TH5 and TH7) 20˚C and Pd >10kg/cm

2

G (0.98MPa).)

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.

(8) Control of liquid level detecting heater

Detect refrigerant liquid level in accumulator, and heat refrigerant with liquid level heater for judging refrigerant amount. 6 steps of duty control is applied to liquid level heater depending on frequency and outdoor air temperature, 1minute after starting compressor.

(9) Judgement and control of refrigerant amount

1 PU(H)Y-(P)200·250YMF-B

Judge refrigerant amount by detecting refrigerant liquid surface accumulator.

1) Judgement of accumulator liquid level Return refrigerant from accumulator liquid level detecting circuit to compressor inlet pipe, detect piping temperature, and judge liquid level. When heated with heater, liquid refrigerant temperature is almost equal to low pressure saturation temperature, and gas refrigerant temperature is a little higher than low pressure saturation temperature. By comparing these temperatures with Te (low pressure saturation temperature) : P-YMF-B, TH2 : YMF-B in accumulator inlet portion, refrigerant liquid level can be judged. Accumulator liquid level is judged in 3 steps as shown in the figure, from Te or TH2 and liquid level detecting temperatures (TH3, TH4). After deciding refrigerant status (Liquid : TH3 and TH4 are Te or TH2 +5˚C or less, Gas : TH3 and TH4 are Te or TH2 +5˚C or more), judge liquid level by comparing TH3 and TH4.

–65–

2) Control of refrigerant amount

Cooling

(a)Prohibition of liquid level detection

• Liquid level is detected in normal conditions except for the following: For 6 minutes after starting unit, and during unit stopping.

(b)In case AL=2 is detected for 3 consecutive minutes during liquid level detection (control at excessive refrigerant

replenishment and trouble mode)

• Changed to intermittent fault check mode preceded by 3 minutes restart prevention. But it is not abnormal when the discharge SH is high. Error stop is observed when trouble is detected again in the same intermittent fault check mode (for 30 minutes after unit stops for intermittent fault check).

• When turning on liquid level trouble ignore switch (SW2-6), error stop is not observed, and 3 minutes restart prevention by intermittent fault check mode is repeated. However, LED displays overflow. (Turning SW2-6 on makes the error of TH6 < outdoor air sensor > ineffective.)

(c) When operation mode shows “Stop,” excessive or insufficient refrigerant display and excessive or insufficient

refrigerant ignore display are extinguished.

Heating

(a)Prohibition of liquid level detection

Liquid level is detected in normal conditions except for the following.

• For 6 minutes after starting unit, and during unit stopping (including restart after overflow ignored).

• During defrosting operations and for 6 minutes after defrosting.

(b)In case AL=2 is detected for 3 consecutive minutes during liquid level detection (control at excessive refrigerant

replenishment and trouble mode)

• Changed to intermittent fault check mode preceded by 3 minutes restart prohibition. But it is not abnormal when the discharge SH is high. Error stop is observed when trouble is detected again in the same intermittent fault check mode (for 30 minutes after unit stops for intermittent fault check).

• When turning on liquid level trouble ignore switch (SW2-6), error stop is not observed, and 3 minutes restart prevention by intermittent fault check mode is repeated. However, LED displays overflow. (Turning SW2-6 on makes the error of TH6 < outdoor air sensor > ineffective.)

* Judgement by the AL is at best only a

rough guideline. Please do not add refrigerant based on the AL reading alone.

Ps

–66–

2 PURY-(P)200·250YMF-B

Judge refrigerant amount by detecting refrigerant liquid surface accumulator.

1) Judgement of accumulator liquid level Return refrigerant from accumulator liquid level detecting circuit to compressor inlet pipe, detect piping temperature, and judge liquid level. When heated with heater, liquid refrigerant temperature is almost equal to low pressure saturation temperature, and gas refrigerant temperature is a little higher than low pressure saturation temperature. By comparing these temperatures with low pressure saturation temperature Te in accumulator inlet portion, refrigerant liquid level can be judged. Accumulator liquid level is judged in 3 steps as shown in the figure, from low pressure saturation temperature Te and liquid level detecting temperatures (TH3, TH4). After deciding refrigerant status (Liquid : TH3 and TH4 are Te+5˚C : YMF-B, TH2+9˚C : P-YMF-B or less Gas : TH3 and TH4 are Te +5˚C : YMF-B, TH2 +9˚C : P-YMF-B or more), judge liquid level by comparing TH3 and TH4.

2) Control of refrigerant amount

Cooling

(a)Prohibition of liquid level detection

• Liquid level is detected in normal conditions except for the following: For 6 minutes after starting unit, and during unit stopping.

(b)In case AL=2 and Td-Tc

20 is detected for 3 consecutive minutes during liquid level detection (control at

excessive refrigerant replenishment and trouble mode)

• Changed to intermittent fault check mode preceded by 3 minutes restart prevention. Error stop is observed when trouble is detected again in the same intermittent fault check mode (for 30 minutes after unit stops for intermittent fault check).

• When turning on liquid level trouble ignore switch (SW2-6), error stop is not observed, and 3 minutes restart prevention by intermittent fault check mode is repeated. However, LED displays overflow. (Turning SW2-6 on makes the error of TH6 < outdoor air sensor > ineffective.)

(c) When operation mode shows “Stop,” excessive or insufficient refrigerant display and excessive or insufficient

refrigerant ignore display are extinguished.

Heating

(a)Prohibition of liquid level detection

Liquid level is detected in normal conditions except for the following.

• For 6 minutes after starting unit, and during unit stopping (including restart after overflow ignored).

• During defrosting operations and for 6 minutes after defrosting.

(b)In case AL=2 and Td-Tc

20 deg is detected for 3 consecutive minutes during liquid level detection (control at

excessive refrigerant replenishment and trouble mode)

• Changed to intermittent fault check mode preceded by 3 minutes restart prohibition. Error stop is observed when trouble is detected again in the same intermittent fault check mode (for 30 minutes after unit stops for intermittent fault check).

* Judgement by the AL is at best only a

rough guideline. Please do not add refrigerant based on the AL reading alone.

Ps Te (low pressure saturation Temperature)

–67–

• When turning on liquid level trouble ignore switch (SW2-6), error stop is not observed, and 3 minutes restart

prevention by intermittent fault check mode is repeated. However, LED displays overflow. (Turning SW2-6 on makes the error of TH6 < outdoor air sensor > ineffective.)

(10) Refrigerant recovery control (PU(H)Y-(P)200·250YMF-B)

Refrigerant recovery is conducted to prevent refrigerant from accumulating in the stopped unit (fan unit), the unit under cooling mode and that with heating thermostat being turned off.

1) Start of refrigerant recovery 1 Refrigerant recovery is started when the two items below are fully satisfied.

• 30 minutes has passed after finishing refrigerant recovery.

• The level detector detects AL = 0 for 3 minutes continuously, or the discharge SH is high.

2) Refrigerant recovery operation

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

modes, and that with heating thermostat being turned off) for 30 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 recov-

ery operation.

(11) Control of outdoor unit fan and outdoor unit heat exchanger capacity

1 PU(H)Y-200·250YMF-B

1) Control system Depending on capacity required, control outdoor fan flow rate with phase control, for maintaining evaporation temperature (0˚C when TH6

27˚C, lower than 0˚C when TH6 < 27˚C) in cooling operations, and high pressure

18kg/cm2G (1.76MPa) in heating operations.

2) Control

• Outdoor unit fan stops when compressor stops.

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

• Outdoor unit fan stops during defrosting operations.

2 PUHY-P200·250YMF-B, PURY-(P)200·250YMF-B

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 fan stops during defrosting operations.

Starts

LEV opening before change

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

Finish

30 seconds

–68–

Mode

Connection

2000

Superheat

control *1

60

60 *4

Differential

Pressure control

*2

2000

60

1000

60

[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 SVM

SVM is turned on and off corresponding to operation mode.

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

SVM ON OFF OFF OFF ON OFF

(3) 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 Defrost Stop

* Please confirm that the above parts of BC controllers are being color-corded and shown with the name plate inside

the BC controller unit.

LEV1

LEV2*

4

LEV3

LEV4*

4

*1

*2

*3

*4

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).

There are not LEV2 and LEV4 on CMB-P-V-E.

• Liquid level control

• Differential pressure control

*2

60

60 *3

Differential

Pressure control

*2

–69–

YES

NO

YES

NO

YES

NO

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 trouble 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 being under

cooling operation, the operation of indoor unit will be prohibited even by setting a part of indoor units under operation, or indoor unit under stopping or fan mode to heating mode. Reversely 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

Oil return LEV, 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

Error code blinks on the

remote controller

Cooling/heating mixed (only for PURY)

Note : 4

–70–

(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

NO

YES

NO

YES

NO

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

–71–

(3) Indoor unit

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

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

pupm ON

FAN stop

Drain pump

ON

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

Note : 2 Two error modes include indoor unit trouble, (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

–72–

(4) Cooling operation

YES

NO

YES

NO

1. Inverter output 0Hz

2. Indoor unit LEV, oil return 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, oil return 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

–73–

YES

NO

YES

NO

(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, oil return LEV fully closed

4. Solenoid valve OFF

5. Outdoor unit fan stop

6. BC controller solenoid valve OFF (PURY)

7. BC controller LEV fully closed (PURY)

1. Indoor and outdoor unit fan control

2. Inverter frequency control

3. Indoor unit LEV, oil return LEV control

4. Solenoid valve control

5. BC controller solenoid valve control (PURY)

6. BC controller LEV control (PURY)

1. Indoor unit fan stop

2. Inverter defrost frequency control

3. Indoor unit LEV fully opened, oil return LEV fully closed

4. Solenoid valve control

5. Outdoor unit fan stop

6. BC controller solenoid valve control (PURY)

7. BC controller LEV control (PURY)

Heating operation

4-way valve ON

Defrosting

operation

Test run star t

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 : 2 1 PUHY-(P)200·250YMF-B

Defrosting start condition : After integrated 39 minutes : P-YMF-B, 50 minutes : YMF-B of compressor operations,

and –10˚C : P-YMF-B, –2˚C : YMF-B or less outdoor unit coil temperature.

Defrosting end condition : After 10 minutes : P-YMF-B, 15 minutes : YMF-B of defrosting operation or the outdoor unit

coil temperature having risen to 8˚C or more.

2 PURY-(P)200·250YMF-B

Defrosting start condition : After integrated 50 minutes of compressor operations, and –8˚C:P-YMF-B, –6˚C:YMF-B or

less outdoor unit coil temperature. (TH7)

Defrosting end condition : After 15 minutes of defrosting operation or the outdoor unit coil temperature (TH5 and TH7)

having risen to 8˚C or more.

Note : 1 Note : 2

–74–

YES

NO

YES

NO

(6) Dry operation

Normal operations Thermostat ON Stop

1. Indoor unit fan stop

2. Inverter output 0Hz

3. Indoor unit LEV, oil return LEV closed

4. Solenoid valve OFF

5. Outdoor unit fan stop

6. BC controller solenoid valve OFF (PURY)

7. BC controller LEV fully closed (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 star t

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.

–75–

Low pressure shell scroll type with capacity control mechanism Winding resistance: Each phase 0.388Ω (20˚C)

Setting 30kg/cm2G (2.94MPa) OFF

R120=7.465kΩ B25/120=4057

Rt = 7.465exp {4057( - )}

R0=33kΩ B0/100=3965 Rt = 33exp{3965( - )}

-20˚C : 92kΩ

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

R0=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

MC

63HS

63LS

63H

TH1 (discharge)

TH2 (low pressure saturation temperature)

TH3 TH4 (liquid level detection)

TH5 (piping temperature)

TH6 (outdoor air temperature)

TH7 (subcool coil outlet temperature)

TH8 (subcool coil bypass outlet temperature)

TH9

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.

Detection of refrigerant liquid level inside accumulator by temperature difference of TH2, TH3 and TH4

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) control

1) Detects the CS circuit fluid temperature.

2) Calculates the refrigerant circulation configuration.

Name Application Specification Check method Object

Pressure 0~10 kg/cm

2

G (0~0.98MPa) Vout 0.5~3.5 V

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

Pressure 0~30 kg/cm

2

G (0~2.94MPa) Vout 0.5~3.5 V

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

Connector

1

273+t

1

273+t

1

273+t

Continuity check

Resistance value check

• PU(H)Y(P)200·250YMF-B

• PURY(P)200·250YMF-B

• PUHYP200·250YMF-B

• PURY(P)200·250YMF-B

• PU(H)Y(P)200·250YMF-B

• PURY(P)200·250YMF-B

• PU(H)Y(P)200·250YMF-B

• PURYP200·250YMF-B

• PU(H)Y(P)200·250YMF-B

• PURY(P)200·250YMF-B

• PU(H)Y(P)200·250YMF-B

• PUHYP200·250YMF-B

• PURYP200·250YMF-B

Outdoor unit

Symbol

(function)

63HS

63LS

1

273+120

1

273+0

1

273+0

–76–

Name Application Specification Check method Object

Outdoor unit

Symbol

(function)

Thermistor

Solenoid valve

Linear expansion valve

Liquid level detection heater

Linear expansion valve

Thermistor

TH10 (P-YMF-B only)

THHS

SV1 (discharge suction bypass)

SV2 (discharge suction bypass)

SV3 ~ 6

SLEV

LEV1 (SC coil)

CH2, CH3 (accumulator liquid level detection)

LEV

TH21 (inlet air temperature)

TH22 (piping temperature)

TH23 (gas side piping temperature)

1) Detects the compressor shell temperature.

2) Provides compressor shell overheating protection.

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) Discharge press. rise suppression

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

Control of heat exchanger capacity.

Adjustment of liquid refrigerant (oil) return foam accumulator

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

Heating of refrigerant in accumulator liquid level detection circuit

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)

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

2) LEV control in heating operation (Subcool detection)

LEV control in cooling operation (Superheat detector)

R120=7.465kΩ B25/120=4057 Rt =

7.465exp {4057( - )}

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

R50=17kΩ B25/50=4170 Rt = 17exp{4170( - )}

-20˚C : 605.0kΩ 50˚C : 17.0kΩ

-10˚C : 323.3kΩ 60˚C : 11.5kΩ 0˚C : 180.9kΩ 70˚C : 8.0kΩ 10˚C : 105.4kΩ 80˚C : 5.7kΩ 20˚C : 63.8kΩ 90˚C : 4.1kΩ 30˚C : 39.9kΩ 100˚C : 3.0kΩ 40˚C : 25.7kΩ

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

DC12V stepping motor drive Valve opening 0~480 pulse

Cord heater : 2kΩ

(1kΩ + 1kΩ)

AC220~240V 20W (10W + 10W)

DC12V Opening of stepping motor driving valve 60~2,000 pulses

R0 = 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.

Resistance value check

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

Resistance value check

1

273+t

• PUHYP200·250 YMF-B

• PURYP200·250 YMF-B

• PU(H)Y(P)200·250 YMF-B

• PURY(P)200·250 YMF-B

•

PURY(P)200·250YMF-B

• PU(H)Y(P)200·250YMF-B

• PURY(P)200·250YMF-B

•

PU(H)Y(P)200·250YMF-B

• PU(H)Y(P)200·250YMF-B

• PURY(P)200·250YMF-B

Indoor unit

1

273+50

1

273+t

1

273+t

1

273+0

1

273+120

–77–

Name Application Specification Check method Object

BC controller

Symbol

(function)

1

273+t

Pressure sensor

Thermistor

Solenoid valve

Electronic expansion valve

PS1

PS3

TH11 (liquid inlet temperature)

TH12 (bypass outlet pressure)

TH13 (liquid level detection, heat exchanger outlet temperature)

TH14 (liquid level detection, heat exchanger inlet temperature)

TH15 (bypass outlet temperature)

TH16 (bypass inlet temperature)

SVM

SVA

SVB

SVC

LEV1 LEV2*

LEV3

LEV4*

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 (liquid refrigerant control)

LEV control (superheat control)

LEV control (subcool control)

Opens for cooling-only, defrosting.

Supplies refrigerant to cooling indoor unit.

Supplies refrigerant to heating indoor unit.

Supplies refrigerant to cooling indoor unit.

Liquid level control pressure control

Pressure control

Pressure 0~30kg/cm2G

(0~2.94MPa)

VOUT 0.5~3.5V

R0=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

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

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

Continuity check by a tester

Same as LEV of indoor unit.

Red

White

Black

1

273+0

* Only for CMB-P-V-D

–78–

[5] Resistance of Temperature Sensor

Thermistor for low temperature Thermistor Ro= 15kΩ ± 3% (TH3 ~ 9) Thermistor R120 = 7.465kΩ ± 2% (TH1, 10) R

t = 15exp {3460 ( - )} Rt = 7.465exp {4057 ( - )}

Thermistor R

o = 33kΩ ± 1% (TH2) Thermistor R50 = 17kΩ ± 2% (THHS)

Rt = 33exp {3965 ( - )} Rt = 17exp {4170 ( - )}

50

40

30

20

10

0

–20 –10 10 20 30 40 500

25

20

15

10

5

0

90 100 110 120

1

273+t

1

273+t

1

273+t

1

273+t

1

273+50

Temperature (˚C) Temperature (˚C)

Resistance (kΩ)

1

273+0

1

273+120

1

273+0

–79–

66

6 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.

Compressor shell temperature is 20~70 degrees higher than low pressure saturation temperature (Te) when refrigerant amount is appropriate. → Judged as over replenishment when temperature difference from low pressure saturation temperature (Te) is 10 degrees 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 operations, discharge temperature tends to rise at overload than low temperature.

During heating operations, discharge temperature tends to rise at low temperature than overload.

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)

Emergency stop occurs when the remote control display is at

1501. (insufficient refrigerant)

Excessive refrigerant replenishment

Insufficient refrigerant replenishment

Insufficient refrigerant

1

2

3

4

5

1

2

3

4

–80–

(2) Refrigerant Volume Adjustment Operation (PU(H)Y-(P)200·250YMF-B)

1) Operating Characteristics Refrigerant Volume Characteristic items related to operating characteristics and the refrigerant volume are shown below.

If the number of indoor units in operation increases during cooling, the required volume of refrigerant tends to increase (the amount of refrigerant in the accumulator tends to decrease), but the change is minimal.

The liquid level in the accumulator is at its highest when all the indoor units are operating during heating.

If there is refrigerant in the accumulator, even if the volume of refrigerant is increased or decreased, there is practically no change in the outlet temperature.

During cooling, the discharge temperature rises more easily when there is an overload than when the temperature is low.

During heating, the discharge temperature rises more easily when the temperature is low than when there is an overload.

The lower the operating frequency, the less efficient the compressor is, making it easier for the discharge temperature to rise.

The compressor shell temperature becomes 20~70 deg. higher than the low pressure saturation temperature (TH2) if the refrigerant volume is appropriate. If the difference with the low pressure saturation temperature (TH2) is 10 deg. or less, it can be judged that the refrigerant is overcharged.

2) Adjusting and Judging the Refrigerant Volume

1 Symptoms

Overcharging with refrigerant can be considered as the cause of the following symptoms. When adjusting the refrigerant volume, be sure that the unit is in the operating condition, and carry out refrigerant volume judgment and self-diagnosis by the LED’s, judging overall whether the volume of refrigerant is in excess or is insufficient. Perform adjustments by running the unit in the refrigerant volume adjustment mode.

2 Refrigerant Volume a Checking the Operating Condition

Operate all the indoor units on cooling or on heating, checking the discharge temperature, sub-cooling, low pressure saturation temperature, inlet temperature, shell bottom temperature, liquid level, liquid step, etc. and rendering an overall judgment.

Note :

Depending on the operating state, AL = 0 has the meaning does not mean that there is insufficient refrigerant.

1

2

3

4

5

Tendency of discharge Temperature

Comparison when control is included.

Emergency stop occurs when the remote control display is at 1500 (refrigerant overcharge).

The operating frequency doesn’t rise high enough and capacity is not achieved.

Emergency stop occurs when the remote control display is at 1102 (outlet temperature overheating).

Emergency stop occurs when the remote control display is at 1501 (insufficient refrigerant).

1

2

3

4

Refrigerant overcharge

Insufficient refrigerant

Judgement

Refrigerant volume tends toward insufficient.

Rifrigerant volume tends toward overcharge.

Condition

1 Outlet temperature is high. (125°C or higher)

2 Low pressure saturation temperature is extremely low.

3 Inlet superheating is high (if normal, SH = 20 deg or lower).

4 Shell bottom temperature is high (the difference with the low pressure saturation

temperature is 70 deg. or greater)

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

perature is 10 deg. or lower).

6 Liquid level AL = 2

for PU(H)Y-(P)200·250YMF-B

–81–

b Cautions When Judging the Liquid Level

If you are judging the liquid level, be sure to use it only after making sure the liquid level sensor function (sensor and heater) is operating normally.

Check Items 1 Liquid Heater Disconnection Check 2 Liquid Heater Output Check

Turn 1 ON on the self-diagnosis switch (SW1)

1234 567 8910

ON

, and output the signal for the heater relay to LED 7, then check the voltage of the heater terminal (AC 198~264 V) (leave the heater connections as they are).

3 Inlet superheating is high (if normal, SH = 20 deg or lower).

c 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 LD8 lights up, it indicates the refrigerant charge abnormal delay state just before emergency stop due to refrigerant overcharge (1500).

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 PU(H)Y-200YMF-B PUHY-P200YMF-B PU(H)Y-250YMF-B PUHY-P250YMF-B Refrigerant Charge Volume 7.5kg 8 kg 9.5kg 10 kg

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

Additional Refrigerant Volume (kg) = (0.12 × L

1) + (0.06 × L2) + (0.024 × L3) + α

L

1: Length of ø12.7 liquid pipe (m)

L2: Length of ø9.52 liquid pipe (m) L

3: Length of ø6.35 liquid pipe (m)

α: refer to the calculation table.

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

(α Calculation Table)

Total Capacity of

α

Connected Indoor Units

~90 1.0 kg

91~180 1.5 181~370 2.0 371~462 2.5

Caution : (PUHY-P200·250YMF-B)

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.

Judgment

Normal if the resistance is 2 kΩ ± 5%. Normal if AC 198~264 V is output together with the LED lighting.

1234 567 8910

ON

for PU(H)Y-(P)200·250YMF-B

–82–

3) Refrigerant Volume Adjustment Mode Operation 2 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.

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.

1 During cooling, LEV1 on the outdoor unit opens slightly wider than normal. 2 During heating, ordinary operation is carried out.

Additionally, if the self-diagnosis switch (SW1) on the outdoor unit’s control board is set to

1234 567 8910

ON

, the

accumulator’s liquid level is indicated by the LED lighting position.

AL = 0 (No liquid in accumulator) AL = 1 (Liquid in accumulator) AL = 2 (Overcharge)

Notes 1 Even if AL = 1 for a short time after operation in the refrigerant volume adjustment mode starts, as

time passes (as the refrigeration system stabilizes), it may change to AL = 0.

1 If it is really AL = 1

Cases where AL = 1, TH5 - TH7 in the outdoor unit is 5 deg or greater and the SH of all indoor units is 6~13 deg.

2 Cases where AL = 1 now, but there is a possibility that it will change to AL = 0 as time passes.

TH5 - TH7 in the outdoor unit is not 5 deg., or the SH of at least one of the indoor units is not deg.

Notes 2 A refrigerant volume adjustment performed in the cooling mode must be done with a gauge reading of 14 kg/cm2G

(1.37MPa) or higher. If the pressure does not reach 14 kg/cm2G (1.37MPa), adjust in the heating mode.

Notes 3

In cases where a high pressure of 14 kg/cm2G (1.37MPa)

or greater cannot be maintained with low temperature outside air

(20~25 deg.) in cooling mode operation, and high pressure changes at the border of 14 kg/cm2G (1.37MPa)

, use TH1, TH5, TH7 and Tc to adjust the refrigerant volume. TH1, TH5 and TH7 can be displayed using the self-diagnosis switch (SW1) on the outdoor unit’s control board.

Notes 4 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.)

TH1 Self-diagnosis Switch TH5 Self-diagnosis Switch

TH7 Self-diagnosis Switch Tc Self-diagnosis Switch

Using these, judge TH1, Tc - TH5 and Tc - TH7. However, if you are adjusting the cooling refrigerant volume by this procedure, do not turn Dip SW2-4 ON.

A

In cases where cooling is being done in the refrigerant volume adjustment mode, if 2 above applies, please perform accumulator level AL judgment after waiting until TH5 - TH7 in the outdoor unit is at 5 deg or higher and the SH of all the indoor units reaches 6~9 deg.

C

For the SH of indoor units, turn the self-diagnosis switch for the outdoor unit ON, then monitor by the lighting position of the LED.

When supplementing the refrigerant volume, please be careful to charge with liquid refrigerant.

1

2

Operation

1234 567 8910

ON

1234 567 8910

ON

1234 567 8910

ON

1234 567 8910

ON

Treatment

for PU(H)Y-(P)200·250YMF-B

–83–

(3) Refrigerant adjustment in cooling season (When the high pressure is 14 kg/cm2G (1.37MPa) or greater)

Caution :

• Do not let the drained out refrigerant escape to the outside atmosphere.

• Always be sure to charge with refrigerant from the liquid phase side. (PUHY-P200·250YMF-B)

Adjustment start

Cooling operations of all indoor unit in test run mode.

Operations status

stabilized ?

Turn on refrigerant amount adjustment switch (SW2-4) of outdoor unit.

Liquid level of accumulator

indicates AL=0 or AL=2

Liquid level changed from

AL=0 to AL=1 ?

After adjusting the refrigerant volume, run for 5 minutes and judge the AL.

YES

NO

AL=0

AL=2

Finish to draw out refrigerant refrigerant.

Finish refrigerant replenishment.

Adjustment finished.

Liquid level changed from

AL=2 to AL=1 ?

Draw out refrigerant little by little from low pressure service port.

After adjusting the refrigerant volume, run for 5 minutes and judge the AL.

Charge refrigerant from low pressure service port little by little.

for PU(H)Y-(P)200·250YMF-B

–84–

YES

NO

Flow Chart (When a high pressure cannot be maintained at 14 kg/cm2G (1.37MPa) in the intermediate period)

Caution: (PUHY-P200·250YMF-B)

Always be sure to charge with refrigerant from the liquid phase side.

Start adjustment.

Run all the indoor units in the cooling condition in the trial operation mode.

Is the liquid level in the

accumulator 0 or 16 or more

minutes after starting?

Drain out small amounts of refrigerant at a time from the low pressure service port.

Is TH1 115°C?

Charge with small amounts of refrigerant at a time through the low pressure service port.

Has the power

been switched on for 2 hours

or longer, or has the compressor run

continuously for 30 minutes or longer

since the power was switched on,

and has the frequency

stabilized?

Run for 5 minutes after adjusting the refrigerant, then judge.

Charge with small amounts of refrigerant at a time through the low pressure service port.

Run for 5 minutes after adjusting the refrigerant, then judge Tc - TH5.

Charge with small amounts of refrigerant at a time through the low pressure service port.

Drain out small amounts of refrigerant at a time from the low pressure service port.

Is 7(5) Tc-TH5

12(10) deg.?

Is Tc-TH7 < 7(5) deg.?

Is TH1 110°C?

Is Tc-TH7 17(15)

deg.?

Note: • Do not let the drained out

refrigerant escape to the outside atmosphere.

• ( ) is for PU(H)Y200·250YMF-B

for PU(H)Y-(P)200·250YMF-B

Run for 5 minutes after adjusting the refrigerant, then judge.

Adjustment completed.

–85–

YES

NO

(4) Refrigerant adjustment in heating season

* If adjustment of the refrigerant volume was done by heating

operation, it is possible that accumulation of refrigerant due to the lengthened piping could have a great influence, so it is recommended that operation be checked during the cooling season.

Note: Do not let the drained out refrigerant escape to the outside

atmosphere.

Caution: (PUHY-P200·250YMF-B) Always be sure to charge with refrigerant from the liquid phase side.

Start

Adjustment

Run all the indoor units in the heating condition in the trial operation mode.

Has the operating condition stabilized?

Is the accumulator’s

liquid level AL = 0?

Charge with small amounts of refrigerant at a time through the low pressure service port.

After adjusting the refrigerant volume, run for 5 minutes and judge the AL.

Finish charging with refrigerant.

Determine the difference between the volume of refrigerant needed for heating and the volume needed for cooling and charge with that amount.

Turn all of switches of SW1 OFF.

Adjustment completed.

Is the accumulator’s

liquid level AL=0 when just one indoor

unit is running.

Is the accumulator’s

liquid level AL = 1?

Adjustment is

not necessary.

Note 3

Is the accumulator’s

liquid level AL = 1?

Adjustment

completed.

Finish draining out refrigerant. Finish draining out refrigerant.

Draining out approximately 5 kg of refrigerant.

Did the liquid level

change from AL = 2

to AL = 1?

Charge with small amounts of refrigerant at a time from the low pressure service port.

Drain out small amount of refrigerant at a time from the low pressure service port.

Did the liquid level

change from AL = 1

to AL = 0?

Readjust.

Note 4

Note 2

Note 3

Note 1

1

2

3

6

8

0

B

C

D

4

5

7

9

A

E

F

G

H

I

for PU(H)Y-(P)200·250YMF-B

Did the liquid level

change from AL = 0

to AL = 1?

Turn on switches No. 1, 2, 4, 5 and 6 of the self-diagnosis switch (SW1), switching to the mode in which the liquid level is displayed by the LED.

–86–

Note 1 If there are any units which are not operating, it will cause refrigerant to accumulate, so by all means operate all

the indoor units. Also, in order to prevent stable operation from being disrupted by the thermostat going OFF, set the trial operation mode.

Note 2 If the high pressure is stabilized, it is safe to judge that the operation condition is stable.

Judge that operation is stabilized or not stabilized by whether the compressor starts after 3 or more minutes have passed.

Note 3 When turning on SW1 to

1234 567 8910

ON

, the LED will display the liquid level.

Note 4 If AL = 1, it indicates basically that adjustment is not necessary, but when the liquid level is on the low side even

if it is in the AL = 1 region, if one unit only is run and refrigerant is accumulating in the units that are stopped, it may result in there being insufficient refrigerant, so at such a time, adjustment is necessary.

Note 5 Determine the difference in the volume of refrigerant necessary for cooling and for heating as follows, and carry

out supplementary charging in accordance with the table below.

* The piping length is the total pipe length calculated for a liquid pipe with a ø12.7 size.

• PUHY-P200·250YMF-B

Note 6 When turning on SW1 to

1234 567 8910

ON

, the LED will display the liquid level.

Note 7 If the adjustment in items 6~A is sure, AL will not become AL = 2 even if the MAX refrigerant volume is

charged. Therefore, in the case of AL = 2, it can be judged that there was overcharging in items 6 and 8, or that there was a mistake in the calculations in B.

Pipe Length 60 m or less 60~90 m 90 m or longer

8 kg 10 kg 12 kg

Additional Refrigerant Volume

If the liquid pipe size is ø9.52, the actual length is 0.50

If the liquid pipe size is ø6.35, the actual length is 0.2

for PU(H)Y-(P)200·250YMF-B

–87–

(5) Refrigerant Amount Adjustment Mode Operations (PURY-(P)200·250YMF-B)

1) Procedure Follow the procedure shown below when needs to additionally replenish or discharge refrigerant arises depending on operation status.

When turning on function select switch (SW2-4) on outdoor unit control circuit board, mode is changed to refrigerant amount adjustment mode followed by the operations shown in the table below.

In addition when setting selfdiagnosis switch (SW1) on control circuit board of outdoor unit to

1ON2345678910

liquid level of accumulator is shown by position of LED light-up.

When LED1 lights up → AL = 0 (No liquid in accumulator) When LED2 lights up → AL = 1 (Liquid in accumulator) When LED3 lights up → AL = 2 (Overcharge)

Note 1: Though AL=1 is shown for a while after starting operations in refrigerant amount adjustment mode, it some-

times changes to AL=0 as time goes by (when refrigerant system becomes stable).

1 In the case of genuine AL=1

In case AL=1, subcool of BC controller is 5 degrees or more, and SH of all indoor units are within 5-9 degrees.

2 In case the present AL=1 status will possibly change to AL=0

In case subcool of BC controller is 5 degrees or less, or SH of at least one indoor units 5 degrees or less.

2: Refrigerant amount adjustment in cooling mode can not be performed when high pressure is 14kg/cm

2

G

(1.37MPa) or more. In this case, perform the adjustment in heating mode.

In the case of cooling-only operations in refrigerant amount adjustment mode, if the above 2 is applicable, judge accumulator level (AL) after subcool of BC controller reaches 5 deg or more, and SH of all indoor units becomes 5~7 degrees.

Monitor subcool of BC controller at LED light-up position, by turning on selfdiagnosis switch of outdoor unit (SW1-1, 2, 4, 8)

Monitor SH of indoor unit at LED light-up position, by turning on No. 1 unit SW1 -5, 6, 8 No. 2 unit SW1 -1, 5, 6, 7 and No. 3 unit SW1 -2, 5, 6, 8 No. 4 Unit SW1 -1, 2, 5, 6, 8 No. 5 unit SW1 -3, 5, 6, 8 No. 6 unit SW1 -1, 3, 5, 6, 8, No. 7 unit SW1 -1, 2, 3, 5, 6, 8, No. 8 unit SW1 -4, 5, 6, 8 No. 9 unit SW1 -1, 4, 5, 6, 8, No. 10 unit SW1 -2, 4, 5, 6, and 8.

During cooling-only operations only, LEV3of BC controller is set at fixed opening, with outdoor unit heat exchanger fully operated (SV3-5 open, SV6 close).

During heating-only operations (or cooling/heating mixed operations), normal operation is observed.

Operations

1

2

Countermeasure

A

B

C

for PU(H)Y-(P)200·250YMF-B

–88–

YES

NO

2) Refrigerant adjustment in cooling season 1 Flow chart

Cooling operations of all indoor units in test run mode.

After compressor start, turn on refrigerant amount adjustment switch (SW2-4) of outdoor unit.

Operations status

stabilized?

Liquid level of accumulator

indicates AL=0?

Charge refrigerant from low pressure service port little by little.

Calculate adjustment (Wkg) as shown in separate table.

Parameter: frequency, low pressure, piping length, outdoor unit capacity

Recover adjustment to refrigerant from High pressure Ball valve (BV2) service port by setting refrigerant recovering time as a standard.

Recover refrigerant little by little from low pressure service port.

* Valid for only 2 hours in the test run mode. All work must therefore be carried out

within 2 hours. Select the test run mode again if more than 2 hours is required.

* The coolant volume adjustment mode extends for 2 hours after SW2-4 is set to ON.

All work must therefore be carried out within 2 hours. Switch SW2-4 OFF → ON if more than 2 hours is required.

Liquid level changed from

AL=0 to AL=1?

Finish refrigerant.

Liquid level changed from

AL=1 to AL=0?

Finish refrigerant purge.

Replenish ajustment of refrigerant from low pressure service port.

Adjustment (W) minus?

Turn off refrigerant amount adjustment

switch (SW2-4)

Adjustment finished.

Adjustment start

for PURY-(P)200·250YMF-B

–89–

2 Additional replenishment amount and discharge amount of refrigerant

Table-1 PURY-(P)250YMF-B (In case total capacity code is 40 or more and displayed compressor frequency is 94Hz or less)

Compressor frequency (Hz) 63~69 70~76 77~83 84~94

Adjustment W(kg) +4 +3 +2 +1

Table-2 PURY-(P)250YMF-B (In case total capacity code is 40 or more and displayed compressor frequency is 95Hz)

Low pressure (kg/cm2G) (MPa)

3.8~4.5 4.5~5.0 5.0~5.5 5.5 or more

(0.37~0.44) (0.44~0.49) (0.49~0.54) (0.54)

Adjustment W(kg) 0 –1 –2-3

Table-3 PURY-(P)250YMF-B (In case total capacity code is 40 or less and displayed frequency is 94Hz or less)

Table-4 PURY-(P)250YMF-B (In case total capacity code is 40 or less and displayed compressor frequency is 95Hz)

Table-5 PURY-(P)200YMF-B (In case total capacity code is 40 or more and displayed compressor frequency is 74Hz or less)

Compressor frequency (Hz) 55~60 61~66 67~74

Adjustment W(kg) +13 +11 +9

Table-6 PURY-(P)200YMF-B (In case total capacity code is 40 or more and displayed compressor frequency is 75Hz)

Low pressure (kg/cm2G) (MPa)

3.8~4.5 4.5~5.0 5.0~5.5 5.5~6.0 6.0 or more

(0.37~0.44) (0.44~0.49) (0.49~0.54) (0.54~0.59) (0.59)

Adjustment W(kg) +7 +5 +3 +2 +1

Table-7 PURY-(P)200YMF-B (In case total capacity code is 40 or less and displayed compressor frequency is 74Hz or less)

Compressor frequency (Hz) 39~43 44~49 50~54 55~60 61~66 67~74

Adjustment W(kg) +13 +12 +11 +10 +9 +8

Table-8 PURY-(P)200YMF-B (In case total capacity code is 40 or less and displayed compressor frequency is 75Hz)

Low pressure (kg/cm2G) (MPa)

3.8~4.5 4.5~5.0 5.0~5.5 5.5 or more

(0.37~0.44) (0.44~0.49) (0.49~0.54) (0.54)

Adjustment W(kg) +6 +5 +3 +2

Note: Check displayed frequency with LED by setting selfdiagnosis switch (SW1) to

1ON2345678910

Compressor

frequency (Hz)

Extended piping length (m) (Ø19.05)

10m or less

10~50m

50m or more

42~48 49~55 56~62 63~69 70~76 77~83 84~94

+9 +7 +5 +3 +1

00

–1 –2

–1 –5

Low pressure

(kg/cm2G) (MPa)

Extended piping length (m) (Ø19.05)

10m or less

10~50m

50m or more

3.8~4.5 4.5 or more

(0.37~0.44) (0.44)

00

–3 –4

–9 –11

for PURY-(P)200·250YMF-B

–90–

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

3.5~4.5 4.5~5.5 5.5 ~ 7.5

(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

4 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, airtight room should be opened before gas release for preventing

oxygen shortage.

2: When releasing gas, use blotting paper, etc. so that oil spouted with the gas does not spread out.

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

Low pressure

(kg/cm

2

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

N Val ve O Val ve P Flon 22 cylinder Q R407C cylinder R Scale S Vacuum pump

P-YMF-B : 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.

K

G

H

I

J

P

O

R

Q

M

S

T

L

N

LO

HI

P-YMF-B

A

B

C

F

E

D

for PURY-(P)200·250YMF-B

–91–

3) Refrigerant adjustment in heating season 1 Flow chart

* Valid for only 2 hours in the test run mode. All work must therefore be carried out within 2

hours. Select the test run mode again if more than 2 hours is required.

* The coolant volume adjustment mode extends for 2 hours after SW2-4 is set to ON. All work

must therefore be carried out within 2 hours. Switch SW2-4 OFF → ON if more than 2 hours is required.

Heating operations of all indoor units in test run mode.

After compressor start, turn on refrigerant amount adjustment switch (SW2-4) of outdoor unit multi board.

Charge refrigerant little by little from low pressure service port.

Recover about 2kg refrigerant by setting refrigerant recover time as a standard.

YES

NO

Turn off all SW1

Liquid level of

accumulator indicates

AL=1?

Calculate difference (W) between refrigerant amounts required for heating and cooling, and replenish the calculated refrigerant amount.

Adjustment finished

Re-adjustment

Turn off refrigerant amount adjustment switch (SW2-4).

Liquid level

changed from AL=1

to AL=0?

Adjustment not

required.

Liquid level

changed from AL=1

to AL=0?

Recover refrigerant little by little from low pressure Ball valve (BV1) service port.

Finish refrigerant.

Suspend refrigerant purge.

Liquid level

changed from AL=0

to AL=1?

Charge refrigerant little by little from low pressure service port.

Finish refrigerant.

Turn on No. 7 selfdiagnosis switch (SW1) so as to be in LED liquid level display mode.

Turn off refrigerant amount adjustment switch (SW2-4), and perform normal operations for about 15-minute.

Refrigerant

insufficient for one

unit operations?

Liquid level of

accumulator indicates

AL=1?

Operations stabilized?

Liquid level of

accumulator

indicates AL=0?

Adjustment start

Adjustment

finished

for PURY-(P)200·250YMF-B

Note 1

Note 2

Note 3

Note 4

Note 5

Note 6

Note 5

Note 8

Note 5

–92–

Note :

1. Be sure to operate all indoor units because refrigerant is accumulated in stopped unit. Change mode to test run mode for preventing stabilized operations from being disturbed by turning thermostat.

2. • Judge operation status as “stable” when high pressure is stabilized.

• Judge “stable” or “unstable” 3 minutes after starting compressor.

3. When turning on SW1 to

1ON2345678910

, LED displays liquid level as follows.

When LED 1 lights up → AL=0 When LED 2 lights up → AL=1 When LED 3 lights up → AL=2

4. In the case of AL=1, adjustment is not required in principle. However, if liquid level is on the lower side, adjustment is required for fear of refrigerant shortage because refrigerant is accumulated in stopped unit at the time on oneunit operations.

5. Calculate difference of required refrigerant amounts between cooling and heating operations. 1 In case refrigerant piping length is roughly known

Replenish refrigerant observing the table below. The total. length is that converted to ø19.05 liquid pipe size.

15 or less 15~17 17 or more

(1.47)

(1.47~1.67)

(1.67)

60m or less 10kg 5kg 2kg

60~90m 11kg 6kg 3kg

90m or more 12kg 7kg 4kg

Liquid pipe size ø12.7 → Actual length × 0.75 Liquid pipe size ø9.52 → Actual length × 0.375 Liquid pipe size ø6.35 → Actual length × 0.15

2 In case refrigerant piping length is not known

Additionally charge 10kg refrigerant.

6. When turning on SW, LED shows liquid level displayed mode.

When LED 1 lights up → AL=0 When LED 2 lights up → AL=1 When LED 3 lights up → AL=2

7. When 7~B adjustments has been done without fail, AL=2 is not indicated even though maximum amount of refrigerant is charged at C. Therefore, when AL=2 is displayed, excessive replenishment at 7 and 9, or calculation mistaken in C are judged as the cause.

High pressure

(kg/cm

2

G) (MPa)

Piping length (m)

for PURY-(P)200·250YMF-B

1ON2345678910

–93–

77

7 TROUBLESHOOTING

[1] Principal Parts

Pressure Sensor

(1) Judging Failure

1) Check for failure by comparing the sensing pressure according to the high pressure/low pressure pressure sensor

and the pressure gauge pressure. Turn on switches 1, 3, 5, 6 (High) and 2, 4, 5, 6 (Low) of the digital display select switch (SW1) as shown below, and the sensor pressure of the high pressure/low pressure sensors is displayed digitally by the light emitting diode LD1.

High Pressure

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

2

G (0.098MPa), the internal pressure is dropping due to gas leakage.

(b) If the pressure according to the LD1 display is 0~1 kg/cm2G (0.098MPa), there is faulty contact at the connec-

tor, or it is disconnected. Proceed to 4.

(c) If the pressure according to the LD1 display is 32 kg/cm

2

G (3.14MPa) 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

2

G (0.098MPa), both the affected pressure sensor

and the main MAIN board are normal.

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

2

G (0.098MPa), the affected pressure sensor is

faulty (deteriorating performance).

(c) If the pressure reading in the LD1 display does not change, the affected pressure sensor is faulty.

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

2

G (0.098MPa) on the LD1 display, the affected pressure sensor is faulty.

(b) If the pressure is 32 kg/cm2G (3.14MPa) (in the case of the low pressure sensor, 10 kg/cm2G (0.98MPa)) or

higher, the MAIN board is faulty.

4 Disconnect the pressure sensor from the MAIN board and short 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 display is 32 kg/cm

2

G (3.14MPa) (in the case of the low pressure sensor,

10 kg/cm2G (0.98MPa)) or higher, the affected pressure sensor is faulty.

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

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.

High Pressure 0.1 V per 1 kg/cm

2

G (0.098MPa)

Low Pressure 0.3 V per 1 kg/cm2G (0.098MPa)

1234 567 8910

ON

1234 567 8910

ON

Connector

Vout 0.5~3.5 V

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

63HS/

63LS

–94–

* 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, SV2) (PU(H)Y-(P)200, 250YMF-B)

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.

12345678

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.

2) In the case of SV2 (Bypass) (a) SV2 goes ON in accordance with the rise in the high pressure in the cooling mode and heating mode, so check

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

(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.

SW1

SV2SV1

LED

1234 567 8910

ON

–95–

Solenoid Valve (SV1~6) (PURY-(P)200·250YMF-B)

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.

12345678

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.

2) In the case of SV2 (Bypass) (a) SV2 goes ON in accordance with the rise in the high pressure in the cooling mode and heating mode, so check

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

(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.

3) 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.

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

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

SW1

LED

1234 567 8910

ON

1234 567 8910

ON

SV6SV5

SV4SV3

–96–

(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 : 13kg·m (1.3N·m)

–97–

Outdoor LEV

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

Pulse Signal Output and Valve Operation

1234567 8

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→2→3→4→5→6→7→8→1 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. (The pulse signal is output for approximately 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

–98–

Judgment Methods and Likely Failure Mode

Caution:

The specifications of the outdoor unit (outdoor LEV) and outdoor units (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

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. 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 ± 3%.

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 outdoor 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 tempera-

ture is considerably low compared to the remote control’s intake temperature display, it can be judged that there is 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.

Thermistor liquid pipe (temperature sensor)

Linear Expansion Valve

In the case of driver circuit failure, replace the indoor unit’s 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

Outdoor

Indoor

Outdoor

Indoor

Outdoor

Mitsubishi PUHY-250YMF-B, PUY-200YMF-B, PUHY-P200YMF-B, PUHY-P250YMF-B, PUY-250YMF-B Service Handbook

Specifications and Main Features

Frequently Asked Questions

User Manual