Technical Manual 2013 Dc Inverter Series - Maxa 3x5s22

TECHNICAL MANUAL 2013 DC INVERTER SERIES INDOOR UNITS CASSETTES

DUCTED

FLOOR-CEILNG

CSD140A2

CAD140A2

SD140A2

CSD176A1

CAD176A2

SD176A2

OUTDOOR UNITS OUD140A1 OUD176A1

This manual has been created for informative purpose. The company declines every responsibility for the results of projecting or installation based on the explanations and the technical specifications given in this manual. Is besides forbidden the reproduction under any form of the texts and of the figures contained in this manual.

Serie / Series / Serie / Serie / Série

TECHNICAL MANUAL DC INVERTER UNITS Emissione / Issue Ausgabe / Émission

Sostituise / Supersede Ersetzt / Remplace

03 – 2013

05 - 2012

Catalogo/Catalogue/Catálogo/Katalog

MTE01029D0520-01 2

Possible wasted electrical or electronic devices/products should not be located together wit h normal domestic waste, but disposed according to the current WEEE law in compliance with the European Directive 2002/96/EC and following modifications 2003/108/EC. Please inf orm yourself at your local istration or at your reseller in case the product will be re placed with a similar one.

Contents Part 1: Indoor Units Super slim cassette type ............................................................................................................4 Duct type ....................................................................................................................................9 Floor-Ceiling .............................................................................................................................15 Part 2: Outdoor Units................................................................................................................20

3

Cassette type Contents 1. Specifications ...................................................................................................................... 5 2. Dimensions.......................................................................................................................... 6 3. Sound levels........................................................................................................................ 6 4. Wiring diagrams .................................................................................................................. 7 5. Air Velocity and Temperature Distributions .......................................................................... 7 6. Electric characteristics......................................................................................................... 8 7. The specification of power ................................................................................................... 8 8. Field wiring .......................................................................................................................... 8

4

1. Specifications Indoor models

CSD140A2

CSD176A1

220~240-1-50

220~240-1-50

OUD140A1

OUD176A1

V-ph-Hz

380~415-3-50

380~415-3-50

kW

14,0(4,3 ~ 15,5)

16,1(4,8 ~ 17,7)

kBtu/h

48,0(14,8 ~ 53,0)

55,0(16,5 ~ 60,5)

Input

W

1200(4380 ~ 6010)

1350(5020 ~ 6820)

Current

A

2,2(8,0 ~ 10,9)

2,5(9,1 ~ 12,4)

E.E.R.

W/W

3,21-A

3,21-A

kW

16,4(4,9 ~ 15,3)

19,0(5,7 ~ 20,9)

kBtu/h

16,8(56,0 ~ 62,5)

65,0(19,5 ~ 71,5)

Input

W

4420(1170 ~ 5910)

5280(1390 ~ 6980)

Current

A

8,0(2,1 ~10,7)

9,6(2,5 ~ 12,7)

C.O.P.

W/W

3,71

3,61

YDK125-6E

YDK125-6D

1

1

Power supply

V-ph-Hz

Outdoor models Power supply Capacity Cooling

Capacity Heating

Model Qty Indoor fan motor

Input

w

217/170/146

223/199/175

Capacitor

µF

6,5UF/450V

6,5UF/450V

r/min

850/680/580

840/770/670

3

3

Speed (hi/mi/lo) a. Number of rows

Indoor coil

b. Tube pitch(a) x row pitch(b)

mm

21x13,37

21x13,37

c. Fin spacing

mm

1,4

1,4

d. Fin type (code)

Hydrophilic aluminium

e. Tube outside diameter and type

mm

f. Coil length x height x width

mm

g. Number of circuits

Φ7, inner grooved tube 2080x252x40,11

2080x252x40,11

10

12

Indoor air flow (Hi/Med/Lo)

3

m /h

2100/1750/1500

2200/1900/1650

Sound level (sound pressure)

dB(A)

53/50/46

56/51/46

Dimension (W x Dx H) (body)

mm

840x840x245

840x840x300

Packing (W x D x H) (body)

mm

900x900x265

900x900x320

Dimension (W x D x H) ()

mm

950x950x55

950x950x55

Packing (W x D x H) ()

mm

1035x1035x90

1035x1035x90

Net/Gross weight (body)

kg

27/30,5

31/34

Net/Gross weight

kg

5/8

5/8

Design pressure

MPa

4,2/1,5

4,2/1,5

Drainage water pipe diameter

mm

ODΦ32

ODΦ32

Refrigerant piping

mm

Φ9,52/Φ15,9(3/8"/5/8")

Φ9,52/Φ15,9(3/8"/5/8")

°C

RG51C/E

RG51Q1/BGE

Indoor unit

Liquid side/Gas side

Controller Operation

Cooling

°C

≥17

≥17

temperature

Heating

°C

≤30

≤30

Notes: 1. Nominal cooling capacities are based on the following conditions: Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; 2. Nominal heating capacities are based on the following conditions: Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; 3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room. 5

2. Dimensions

Models CSD140A2 CSD176A1

A 245 245

H >275 >275

3. Sound levels

Models

1. 0m

Microphone

6

CSD140A2 CSD176A1

Noise level dB(A) H M L 45

42

40

45

42

40

4. Wiring diagrams CSD140A2, CSD176A1

5. Air Velocity and Temperature Distributions(Reference Data) Airflow velocity

Temperature

7

6. Electric characteristics Models CSD140A2 CSD176A1

Hz 50 50

Indoor unit Voltage Min 220-240 198 220-240 198

Max 254 254

Power supply MFA 15 15

Notes: MFA: Max. Fuse Amps. (A)

7. The specification of power Models Phase Frequency and Voltage INDOOR UNIT POWER POWER WIRING (mm2) CIRCUIT BREAKER (A) Phase Frequency and Voltage OUTDOOR UNIT POWER POWER WIRING (mm2) CIRCUIT BREAKER (A) Indoor/Outdoor Connecting Wiring (Weak Electric Signal) (mm2) Indoor/Outdoor Connecting Wiring (Strong Electric Signal) (mm2)

8. Field wring CSD140A2, CSD176A1

8

CSD140A2, CSD176A1 1-phase 220-240V, 50Hz 3×1.0 15 3-phase 380-420V, 50Hz 5×2,5 40 3-core shielded wire 3x0.5 -----

Duct type Contents 1. Specifications .................................................................................................................... 10 2. Dimensions........................................................................................................................ 11 3. Static pressure................................................................................................................... 12 4. Sound levels...................................................................................................................... 12 5. Wiring diagrams ................................................................................................................ 13 6. Electric characteristics....................................................................................................... 13 7. The specification of power ................................................................................................. 13 8. Field wiring ........................................................................................................................ 14

9

1. Specifications Model name

CAD140A2

CAD176A2

V-ph-Hz

220~240-1-50

220~240-1-50

Model name

OUD140A1

OUD176A1

V-ph-Hz

380~415-3-50

380~415-3-50

kW

14,0(4,3 ~ 15,5)

16,7(4,8 ~ 18,3)

Btu/h

48000(14800 ~ 53500)

57000(17000 ~ 62500)

Input

W

4380(1200 ~ 6000)

5200(1380 ~ 7050)

Current

A

8,0(2,2-10,9)

9,5(2,5 ~ 12,8)

E.E.R.

W/W

3,21-A

3,21-A

kW

17,0(4,9 ~ 18,6)

19,0(5,8 ~ 21,0)

Btu/h

58000(17000 ~ 63500)

65000(19800 ~ 72000)

Input

W

4560(1180 ~ 5920)

5220(1410 ~ 7030)

Current

A

8,3(2,2 ~ 10,7)

9,5(2,6 ~ 12,8)

C.O.P.

W/W

3,73-A

3,65

YSK170-4P

YSK180-4P

1

1

Indoor Model Outdoor Capacity Cooling

Capacity Heating

Model Qty Indoor fan motor

Input

W

356/201/152

355/223/173

Capacitor

µF

10µF/450V

10µF/450V

r/min

1070/750/650

1080/830/710

4

4

Speed (Hi/Med/Lo) Number of rows

Indoor coil

Tube pitch(a)*row pitch(b)

mm

21x13,37

21x13,37

Fin spacing

mm

1,5

1,5

Hydrophilic aluminium

Hydrophilic aluminium

Fin type Tube outside diameter and type

mm

Ф7, innergroove tube

Ф7, innergroove tube

Coil length * height * width

mm

1030x378x53.48

1030x378x53.48

8

8

3

m /h

3010/2410/1940

3100/2500/2000

Pa

100

100

dB(A)

46/41/37

46/41/37

Dimension (WxDxH)

mm

1200x865x300

1200x865x300

Packing(WxDxH)

mm

1385x920x373

1385x920x373

Net/Gross weight

kg

45/54,5

50/59

Design pressure

MPa

4,2/1,5

4,2/1,5

Drainage water pipe diameter

mm

ODΦ25

ODΦ25

Refrigerant piping Liquid side/ Gas side

mm

Φ9.52/Φ15.9(3/8"/5/8")

Φ9.52/Φ15.9(3/8"/5/8")

KJR-10B/DP(T)-E

KJR-10B/DP(T)-E

Number of circuits Indoor air flow (Hi/Med/Lo) (No duct) Indoor external static pressure (Hi) Indoor noise level (Hi/Med/Lo)（70Pa Indoor unit

Controller Operation

Cooling

°C

≥17

≥17

temperature

Heating

°C

≤30

≤30

Notes: 1. Nominal cooling capacities are based on the following conditions: Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. piping: 7,5m (horizontal) 2. Nominal heating capacities are based on the following conditions: Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. piping: 7,5m (horizontal) 3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room.

10

B

H

G

2. Dimensions

E

D C

M

F A

L

Models CAD140A2 CAD176A2

Outline dimension(mm)

Air outlet opening size

Air return opening size

Size of outline dimension mounted plug

A

B

C

D

E

F

G

H

I

J

K

L

M

1200

300

865

800

80

968

40

204

1094

288

45

1240

500

11

3. Static pressure CAD140A2

CAD176A2 Pa 120

Pa 120

110 110

100 100

90 90

External static pressure (Pa)

Super high speed

70

High speed

60

Mid speed Low speed

50 40 30

External static pressure (Pa)

80 80

Super high speed

70 High speed

60 50

Mid speed

40

Low speed

30 20

20

10

10

1000 1300 1600 1900 2200 2500 2800 3100 Air volume(m 3 /h)

1000 1300 1600 1900 2200 2500 2800 3100 3400 Air volume(m3/h)

4. Sound levels Concealed Duct Type Discharge

Suction

Duct

Duct

1.4m

Microphone

12

Models CAD140A2 CAD176A2

Noise level dB(A) H M L 46 41 37 46 41 37

5. Wiring diagrams CAD140A2, CAD176A2

6. Electric characteristics Models

Indoor unit

Power supply

Hz

Voltage

Min.

Max.

MFA

50

220-240

198

254

15

CAD176A2 50 220-240 Note: MFA: Max. Fuse Amps. (A)

198

254

15

CAD140A2

7. The specification of power CAD140A2, CAD176A2

Models Phase INDOOR UNIT POWER

1-phase

Frequency and Voltage

220-240V, 50Hz

POWER WIRING (mm2)

3×1.0

CIRCUIT BREAKER (A)

15

Phase OUTDOOR UNIT POWER

3-phase

Frequency and Voltage

380-420V, 50Hz

2

POWER WIRING (mm )

5×2,5

CIRCUIT BREAKER (A)

40 2

Indoor/Outdoor Connecting Wiring (Weak Electric Signal) (mm ) 2

Indoor/Outdoor Connecting Wiring (Strong Electric Signal) (mm )

3-core shielded wire 3x0.5 -----

13

8. Field wiring Air-conditioner link-circuit. For models: CAD140A2, CAD176A2

14

Index Ceiling & Floor Type 1. Specifications .................................................................................................................. 16 2. Dimensions ...................................................................................................................... 17 3. Wiring Diagrams .............................................................................................................. 18 4. Electric Characteristics................................................................................................... 18 5. Sound Levels ................................................................................................................... 19 6. The Specification of Power............................................................................................. 19 7. Field Wiring ...................................................................................................................... 19

15

1. Specifications Model name

SD140A2

SD176A2

V-ph-Hz

220~240-1-50

220~240-1-50

Model name

OUD140A1

OUD176A1

V-ph-Hz

380~415-3-50

380~415-3-50

kW

14,0(4,3 ~ 15,5)

16,4(4,9 ~ 18,4)

Btu/h

48000(14800 ~ 53200)

56000(16800 ~ 61500)

Input

W

4380(1200 ~ 6000)

5110(1370 ~ 6930)

Current

A

8,0(2,2 ~ 10,9)

9,3(2,5 ~ 12,6)

W/W

3.21-A

3,21-A

kW

16,4(4,9 ~ 15,3)

19,0(5,7 ~ 20,9)

Btu/h

56000(16800 ~ 62800)

65000(19500 ~ 71500)

Input

W

4420(1170 ~ 5910)

5280(1390 ~ 6980)

Current

A

8,0(2,1 ~ 10,7)

9,6(2,5 ~ 12,7)

W/W

3,72

3,61

YSK85-4C

YSK85-4C

2

2

Indoor Model Outdoor Capacity Cooling

EER Capacity Heating

COP Model Qty Indoor fan motor

Input

W

121/104/95

121/104/95

Capacitor

uF

2,5uF/450V

2,5uF/450V

r/min

1310/1190/1080

1310/1190/1080

3

3

Speed (Hi/Med/Lo) Number of rows

Indoor coil

Tube pitch(a)x row pitch(b)

mm

21x13,37

21x13,37

Fin spacing

mm

1,3

1,3

Hydrophilic aluminium

Hydrophilic aluminium

Fin type Tube outside dia.and type

mm

Φ7, Inner groove tube

Φ7, Inner groove tube

Coil length x height x width

mm

1300x294x40.11

1300x294x40.11

8

8

Number of circuits 3

Indoor air flow(Hi/Med/Lo)

m /h

2300/1900/1700

Indoor noise level (sound pressure)(Hi/Med/Lo)

dB(A)

54/51/47

51/48/45

Dimension (WxDxH)

mm

1650x675x235

1650x675x235

Packing (WxDxH)

mm

1725x755x313

1725x755x313

Net/Gross weight

kg

38/44

38/44

Design pressure

MPa

4,2/1,5

4,2/1,5

Drainage water pipe diameter

mm

ODΦ25

ODΦ25

Refrigerant piping

mm

Φ9.52Φ15.9(3/8"/5/8")

Φ9.52Φ15.9(3/8"/5/8")

RG51Q1/BGE

RG51Q1/BGE

Indoor unit

Liquid side/Gas side

Controller

2300/1900/1700

Operation

Cooling

°C

≥17

≥17

temperature

Heating

°C

≤30

≤30

Notes: 1. Nominal cooling capacities are based on the following conditions: Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; Equivalent ref. piping: 7,5m (horizontal) 2. Nominal heating capacities are based on the following conditions: Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; Equivalent ref. piping: 7,5m (horizontal) 3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room.

16

2. Dimensions a. Wall mounting installation

A

B

C

E

D

>20mm

b. Ceiling installation

F

Models SD140A2 SD176A2

G

A

B

C

D

E

F

G

1670

680

240

1070

450

1542

200

Notes: The dimensions of SD140A2 and SD176A2

17

3. Wiring Diagrams SD140A2, SD176A2

4. Electric Characteristics Indoor Units Power Supply Hz Voltage Min. Max. MFA 15 SD140A2 50 220-240 198 254 15 SD176A2 50 220-240 198 254 Note: MFA: Max. Fuse Amps. (A) Models

18

5. Sound Levels

Ceiling

Floor Models SD140A2 SD176A2

Noise level dB(A) H M L 47 43 40 47 43 40

6. The Specification of Power SD140A2, SD176A2

Models Phase INDOOR UNIT POWER

1-phase

Frequency and Voltage

220-240V, 50Hz

POWER WIRING (mm2)

3×1.0

CIRCUIT BREAKER (A)

15

Phase OUTDOOR UNIT POWER

3-phase

Frequency and Voltage

380-420V, 50Hz

2

POWER WIRING (mm )

5×2,5

CIRCUIT BREAKER (A)

40 2

Indoor/Outdoor Connecting Wiring (Weak Electric Signal) (mm ) 2

Indoor/Outdoor Connecting Wiring (Strong Electric Signal) (mm )

3×0,5 -----

7. Field Wiring

19

Part 2 Outdoor units Contents 1. Specifications .......................................................................................................................21 2. Dimensions...........................................................................................................................22 3. Piping diagrams....................................................................................................................22 4. Wiring diagrams ...................................................................................................................23 5. Electric characteristics..........................................................................................................23 6. Operation limits.....................................................................................................................23 7. Sound levels.........................................................................................................................24 8. Point check function .............................................................................................................25 9. Troubleshooting ....................................................................................................................27 9.1 Display board .....................................................................................................................27 9.2 Indoor unit malfunction .......................................................................................................28 9.3 Outdoor unit malfunction ....................................................................................................28 9.4 Solving steps for typical malfunction...................................................................................29 9.4.1 For the indoor unit ...........................................................................................................29 9.4.1.1. Open or short circuit of temperature sensor ................................................................29 9.4.1.2. Outdoor unit malfunction .............................................................................................29 9.4.1.3. Indoor EEPROM malfunction.......................................................................................30 9.4.1.4. Full-water malfunction .................................................................................................30 9.4.2 For the outdoor unit .........................................................................................................30 9.4.2.1 E0 malfunction..............................................................................................................30 9.4.2.2. E2 malfunction.............................................................................................................31 9.4.2.3. E3 malfunction.............................................................................................................32 9.4.2.4. E4 malfunction.............................................................................................................33 9.4.2.5. E5 malfunction.............................................................................................................34 9.4.2.6. P0 malfunction.............................................................................................................35 9.4.2.7. P1 malfunction.............................................................................................................36 9.4.2.8. P2 malfunction.............................................................................................................37 9.4.2.9. P3 malfunction.............................................................................................................38 9.4.2.10. P4 malfunction...........................................................................................................39 9.4.2.11. P5 malfunction ...........................................................................................................40 9.4.2.11. P6 malfunction ...........................................................................................................41 9.4.2.11. P7 malfunction ...........................................................................................................42 Appendix 1 Temperature Sensor Resistance Value Table (°C - kΩ) .........................................43 Appendix 2 Discharge Temperature Sensor Table (°C - kΩ).....................................................43

20

1. Specifications Models

OUD140A1

Power supply

OUD176A1

V-ph-Hz

380~415-3-50

380~415-3-50

Cooling capacity

kW

5.000 ~ 15.000

5.600 ~ 17.500

Heating capacity

kW

5.900 ~ 16.900

6.700 ~ 20.000

Max. input consumption

W

7500

7500

Max. input current

A

13,5

13,5

Model

LNB42FSAMC

LNB42FSAMC

Type

Rotary

Rotary

Brand

Mitsubishi

Mitsubishi

Btu/h

47.700

47.700

Input

W

4.270

4.270

Rated current(RLA)

A

12

12

Locked rotor Amp(LRA)

A

Capacity Compressor

Thermal protector position Capacitor

μF

Refrigerant oil

ml

Model Qty Outdoor fan motor

Input Capacitor

W

/ /

/

/

1.400

1.400

YDK90-6D

YDK90-6D

2

2

142/127

142/127

μF

5

5

r/min

880/810

880/810

1,6

2

Tube pitch(a)* row pitch(b)

mm

22x19,05

22x19,05

Fin spacing

mm

1,5

1,5

Speed(Hi/Lo) Number of rows

Outdoor coil

/ /

Fin type

Hydrophilic aluminium

Tube outside dia.and type

mm

Coil length * height * width

mm

Φ7.94, inner groove tube 995x1320x38,1+593x1320x38,1

995x1320x38,1

10

10

Outdoor air flow

3

m /h

7200

7200

Outdoor noise level (sound power)

dB(A)

69

69

Outdoor noise level (sound pressure)

dB(A)

Number of circuits

Throttle type Outdoor unit

Refrigerant type/Quantity

mm

938x392x1369

938x392x1369

Packing (WxDxH)

mm

1095x495x1420

1095x495x1420

Net/Gross weight

kg

102/115

107/120

R410A

R410A

3,8

4,6

Type Charged volume

kg MPa

4.,/1,5

4,2/1,5

mm(inch)

Φ9,52/Φ15,9(3/8"/5/8")

Φ9,52/Φ15,9(3/8"/5/8")

Max. pipe length

m

65

65

Max. difference in level

m

30

30

Cooling

°C

-15 ~ 50

-15 ~ 50

Heating

°C

-15 ~ 24

-15 ~ 24

Liquid side/Gas side

Ambient temperature

63 Capillary +EXV

Dimension (WxDxH)

Design pressure Refrigerant piping

63 Capillary +EXV

Notes: 1. Nominal cooling capacities are based on the following conditions: Indoor temp: 27°CDB, 19°CWB; Outdoor temp: 35°CDB; 2. Nominal heating capacities are based on the following conditions: Indoor temp: 20°CDB; Outdoor temp: 7°CDB, 6°CWB; 3. Actual noise level may differ, depending on the room structure, etc, since these noise values are from an anechoic room.

21

2. Dimensions

Unit：mm

Models OUD140A1 OUD176A1

A

B

C

D

E

F

H

940

600

376

400

340

360

1245

3. Piping diagrams OUD140A1, OUD176A1 INDOOR

OUTDOOR

LIQUID SIDE

CAPILIARY TUBE

Electronic expansion valve

2-WAY VALVE

HEAT EXCHANGE (EVAPORATOR)

T3 Condenser temp. sensor

HEAT EXCHANGE (CONDENSER)

T4 Ambient temp. sensor

T1 Room temp. sensor

T2 Evaporator temp. sensor GAS SIDE

3-WAY VALVE

4-WAY VALVE Accumulator

Compressor

High pressure switch T5 Discharge temp. sensor Oil separator

Low pressure switch

COOLING Oil return Capillary

For the models OUD140A1 and OUD176A1, the accumulator is not included. 22

HEATING

4. Wiring diagrams OUD140A1, OUD176A1

5. Electric characteristics Models

Outdoor Unit Hz

Voltage

Min.

Max.

OUD140A1

50

380-415

342

440

OUD176A1

50

380-415

342

440

6. Operation limits Temperature Mode Room temperature Outdoor temperature

Cooling operation

Heating operation

≥17℃

≤30℃

(-15°C～50°C)

-15℃～24℃

23

Heating Outdoor temperature(℃ WB)

Outdoor temperature(℃ DB)

Cooling 50

Standard operation

24

Standard operation

-15

-15 17

30

17

Indoor temperature(℃ WB)

Indoor temperature(℃ DB)

7. Sound levels

Models

24

30

Noise level dB(A) H

OUD140A1

58

OUD176A1

58

8 Point Check Function There is a check switch in outdoor PCB. Press the switch SW1 to check the states of unit when the unit is running. Press the switch N times it will display the content corresponding to No. N. After getting into the check function, it will display No. N with 1.5s, meanwhile the low bit decimal of digit display flashing, indicated to get into the check function display. After 1.5s, it will display the content corresponding to No. N. the digital display tube will display the follow procedure when push SW1 each time. N 00

Display

Remark

Normal display

Display running frequency, running state or malfunction code

01

Indoor unit capacity demand code

Actual data*HP*10 If capacity demand code is higher than 99, the digital display tube will show single digit and tens digit. (For example, the digital display tube show “5.0”,it means the capacity demand is 15. the digital display tube show “60”,it means the capacity demand is 6.0)

02

Amendatory capacity demand code

03

The frequency after requirement transfer

04

The frequency after the frequency limit

05

The frequency of sending to 341

06

Indoor unit evaporator outlet temp.(T2)

07

Condenser pipe temp.(T3)

08

Outdoor ambient temp.(T4)

the

capacity

09

Compressor discharge temp.(Tp)

10

AD value of current

11

AD value of voltage

12

Indoor unit running mode code

13

Outdoor unit running mode code

14

EXV open angle

15

Frequency limit symbol

If the temp. is lower than 0 degree, the digital display tube will show “0”.If the temp. is higher than 70 degree, the digital display tube will show “70”. If the temp. is lower than -9 degree, the digital display tube will show “-9”.If the temp. is higher than 70 degree, the digital display tube will show “70”. If the indoor unit is not connected, the digital display tube will show: “――” The display value is between 30~120 degree. If the temp. is lower than 30 degree, the digital display tube will show “30”. If the temp. is higher than 99 degree, the digital display tube will show single digit and tens digit. (For example, the digital display tube show “0.5”, it means the compressor discharge temp. is 105 degree. the digital display tube show “1.6”, it means the compressor discharge temp. is 116 degree) The display value is hex number.

Off:0, Fan only 1, Cooling: 2, Heating: 3, Forced cooling: 4 Actual data/4. If the value is higher than 99, the digital display tube will show single digit and tens digit. For example, the digital display tube show “2.0”, it means the EXV open angle is 120×4 = 480p.) Frequency limit caused by IGBT Bit7 radiator The display value is hex Bit6 Frequency limit caused by PFC number. For example, the Bit5 Frequency limit caused by T4. digital display tube show Bit4 Frequency limit caused by T2. 2A,then Bit5=1, Bit3=1, Bit1=1. Bit3 Frequency limit caused by T3. It means frequency limit Bit2 Frequency limit caused by Tp. caused by T4, T3 and Bit1 Frequency limit caused by current current. Frequency limit caused by Bit0 voltage 25

16

26

DC fan motor speed

17

IGBT radiator temp.(Reserved)

18

Indoor unit number

The display value is between 13~120 degree. If the temp. is lower than 13 degree, the digital display tube will show “13”.If the temp. is higher than 99 degree, the digital display tube will show single digit and tens digit. (For example, the digital display tube show “0.5”,it means the IGBT radiator temp. is 105 degree. the digital display tube show “1.6”, it means the IGBT radiator temp. is 116 degree) The indoor unit can communicate with outdoor unit well.

9. Troubleshooting 9.1 Display board 9.1.1 Icon explanation on indoor display board (Big cassette).

9.1.3 Icon explanation on indoor display board (Ceiling & Floor) Temporary button Operation lamp

Timer lamp

Alarm lamp

Infrared signal receiver

Defrost lamp

9.1.4 Icon explanation on indoor display board (A5 Duct) Temporary button

PRE-DEF indicator Infrared signal receiver Display Digital tube

Operation lamp

Timer indicator

Alarm indicator

27

9.2 Indoor unit malfunction For Normal 4-way cassette(CSD140A2, CSD176A1), ceiling & floor(SD140A2, SD176A2), Duct type (CAD140A1, CAD176A1) NO.

Malfunction

Running lamp

Timer lamp

Defrosting lamp

Alarm lamp

Display

1

Communication malfunction between indoor and outdoor units.

X

☆

X

X

E1

2

Open or short circuit of T1 room temp. sensor

☆

X

X

X

E2

3

Open or short circuit of T2 middle pipe evap. Temp. sensor

☆

X

X

X

E3

4

Open or short circuit of T2B outer pipe evap. Temp. sensor

☆

X

X

X

E4

5

Full-water malfunction

X

X

X

☆

EE

6

Indoor EEPROM malfunction

X

X

☆

X

E7

7

Outdoor unit malfunction

X

X

X

◎

Ed

X(off)

☆(flash at 5Hz) ◎(flash at 0.5Hz)

Note: Digital display is only available for normal 4-way cassette & duct type.

9.3 Outdoor unit malfunction For OUD140A1, OUD176A1 Display

28

Malfunction or Protection

E0

Outdoor EEPROM malfunction

E2

Indoor/outdoor units communication error

E3

Communication malfunction between IPM board and outdoor main board

E4

Open or short circuit of condenser temp. sensor T3 or outdoor ambient temp. sensor T4

E5

Voltage protection of compressor

P0

Top temperature protection of compressor

P1

High pressure protection

P2

Low pressure protection

P3

Current protection of compressor

P4

Discharge temperature protection of compressor

P5

High temperature protection of condenser

P6

IPM module protection

P7

High temperature protection of evaporator

9.4 Solving steps for typical malfunction 9.4.1 For the indoor unit 9.4.1.1 Open or short circuit of temperature sensor Check the connections between temperature sensor and PCB. Are the connections good?

No

Correct the connections.

Yes

Check the resistance value of the sensor via Appendix 1

Is it normal?

Yes

Replace indoor or outdoor PCB.

No Replace the sensor

9.4.1.2. Outdoor unit malfunction

9.4.1.3. Indoor EEPROM malfunction Shut off the power supply and turn it on 5 seconds later. Is it still displaying the error code? Yes If the EEPROM chip is welded on PCB, replace the PCB directly. Otherwise, check whether the EEPROM chip plugged in PCB well?

No

Insert the EEPROM well

Yes Replace the indoor PCB.

9.4.1.4. Full-water malfunction If the water-level switch is inserted well?

No

Insert the water-level switch well

Yes

Replace the water-level switch

Yes If the water-level switch is broken? No If the water pump is normal?

No

Yes Check PCB board or replace the indoor main PCB

9.4.2 For the outdoor unit 9.4.2.1. E0 malfunction

30

Replace the water pump

9.4.2.2. E2 malfunction E2 display

Indoor / outdoor units communication error

Power off, then turn on the unit 5 seconds later(reconnect the power wire).Is the error still displaying after several minutes? Yes Check whether there’s any interference. Such as too many lamps, power transformers? Or the signal wire is too long?

Yes

Remove interference. Increase the capacity of antiinterference

No

Adopt shield cable/Shield cable earthing.

No Check whether the signal wire is shield cable or whether the shield cable is earthing? Yes Check whether the wire is correct polarity? P to P, Q to Q, E to E?

No

Correct the connection.

Yes

Replace the signal wire.

No

Pull out and insert back.

Yes Check whether the signal wire is broken? No Check whether the signal wires insert on PCB well? Yes Replace indoor PCB, is the error distinguished? No Replace the outdoor PCB.

31

9.4.2.3. E3 malfunction E3 display

Communication malfunction between IPM board and outdoor main board

Is there at least one LED in the IPM board light? No Check the signal wire between the IPM module and the main board, is it connected good?

Yes

No Yes Reconnect and retry. Is error still display?

No No Replace IPM board, and then check whether the system can run normally

Yes

No Replace outdoor main board, and then check whether the system can run normally

Yes

No Replace the electric control box

32

Trouble is solved

9.4.2.4. E4 malfunction E4 display

Judge 1: Outdoor condenser temp. sensor (T3) is malfunction

Check whether the wiring of the condenser temp. sensor(T3) is broken off

Yes

Connect the wiring well

No Check whether the resistance of condenser temp. sensorT3) is wrong refer to the Appendix 1

Yes

Replace condenser temp. sensor(T3)

No Judge 2: Outdoor ambient temp. sensor (T4) is malfunction

Check whether the wiring of the outdoor ambient temperature sensor (T4) is broken off

Yes

Connect the wiring well

No Check whether the resistance of outdoor ambient temperature sensor (T4) is wrong refer to the Appendix 1

Yes

Replace outdoor ambient temperature sensor (T4)

No Replace outdoor main PCB

33

9.4.2.5. E5 malfunction

34

9.4.2.6. P0 malfunction

35

9.4.2.7. P1 malfunction

36

9.4.2.8. P2 malfunction

37

9.4.2.9. P3 malfunction

38

9.4.2.10. P4 malfunction When compressor discharge temperature is higher than 115°C, the unit will stop, and unit runs again when compressor discharge temperature is lower than 90°C. P4 display

Temperature protection of compressor discharge

Check whether the compressor discharge temp. is more than 115°C ?

Check whether the refrigerant is leak

Yes

Yes

Stop leaking and add refrigerant

No Check whether the wiring connection is right between compressor discharge temp. sensor and PCB according to wiring diagrams?

No

Correct the wiring connection

Yes Judge: The discharge temp. sensor is broken

Method: Check whether the resistance of compressor discharge temp. sensor is right refer to the Appendix 2

No

Replace the compressor discharge temp. sensor

Yes

Replace outdoor main board

Trouble is solved

39

9.4.2.11. P5 malfunction When condenser high temp. is more than 65°C, the unit will stop, and unit runs again when outdoor pipe temp. less than 52°C. P5 display

High temperature protection of condenser Replace the temperature sensor No Check whether the condenser temperature is more than 65°C No Yes

Judge 1: Check whether the outdoor ambient temperature is higher than 50

Yes

Check whether the resistance of condenser temp. sensor is correct refer to the Appendix 1

Yes

Replace outdoor main board

Stop the unit

No

Judge 2: Check whether the heat exchanger is dirty

Yes

Clean the heat exchanger

No

No

Judge 3: The refrigerant pipe is blocked

40

Yes

Let the refrigerant out, then use the high pressure nitrogen or refrigerant to blow pipe, vacuumize and charge the refrigerant again

9.4.2.12. P6 malfunction P6 display

IPM module protection

Check whether the voltage range of P-N on IPM module is normal? DC 350-650V

Check whether the input power supply is correct? 380-415V, 3N, 50Hz

No

Regulate it to correct, then check whether the system can work normally?

No

Yes No

Yes Check whether the connecting line between main board and the IPM module is connected tightly

No

Connect it tightly, check ok or not?

Check whether the power supply line is connected correctly and tightly

Connect it correctly and tightly, check ok or not?

No

Yes No

Check whether the connecting line of the compressor is connected correctly or tightly

No

Yes

Connect it well, check ok or not?

No

Check whether the lines in E-part box are connected tightly

No

Connect it tightly, check ok or not?

Yes No

Yes

Replace the IPM module, check whether the system can work normally?

No

Check whether the bridge rectifiers are normal? Use the multimeter to measure the resistance between each two terminals, check whether there is the condition that value of resistance is 0

No

No

Yes Replace the main board; check whether the system can work normally?

Yes Yes

Replace the bridge rectifiers Check whether the 3300µF/400V electrolytic capacitor is normal?

No

Replace the compressor, check whether the system can work normally?

No

Replace this electrolytic capacitor

Yes

Trouble is solved Yes

41

9.4.2.13. P7 malfunction P7 display

High temperature protection of evaporator

Whether compressor operates?

No

Whether the connection is good?

Yes

Yes

Check whether the heat exchanger is dirty, the airoutlet is blocked and the indoor fan is running normal?

Check the resistance value of the sensor via Appendix 1,Is it normal?

No

Reconnect and retest

No

Replace the temperature sensor

No Clean the heat exchanger and the air-outlet

Yes

Whether the indoor PCB is normal? Check whether the indoor fan is running normal

No Check refrigerant system (such as clogging of capillary etc.)

42

No

Replace the indoor PCB

Appendix 1 Temperature Sensor Resistance Value Table (°C-- kΩ) °C

kΩ

°C

kΩ

°C

kΩ

°C

kΩ

12.6431

60

2.35774

100

0.62973

-19

115.266 108.146

20 21

12.0561

61

2.27249

101

0.61148

-18

101.517

22

11.5000

62

2.19073

102

0.59386

-17

96.3423

23

10.9731

63

2.11241

103

0.57683

-16

89.5865

24

10.4736

64

2.03732

104

0.56038

-15

84.2190

25

10.000

65

1.96532

105

0.54448

-14

79.3110

26

9.55074

66

1.89627

106

0.52912

-13

74.5360

27

9.12445

67

1.83003

107

0.51426

-12

70.1698

28

8.71983

68

1.76647

108

0.49989

-11

66.0898

29

8.33566

69

1.70547

109

0.48600

-20

-10

62.2756

30

7.97078

70

1.64691

110

0.47256

-9

58.7079

31

7.62411

71

1.59068

111

0.45957

-8

56.3694

32

7.29464

72

1.53668

112

0.44699

-7

52.2438

33

6.98142

73

1.48481

113

0.43482

-6

49.3161

34

6.68355

74

1.43498

114

0.42304

-5

46.5725

35

6.40021

75

1.38703

115

0.41164

-4

44.0000

36

6.13059

76

1.34105

116

0.40060

-3

41.5878

37

5.87359

77

1.29078

117

0.38991

-2

39.8239

38

5.62961

78

1.25423

118

0.37956

-1

37.1988

39

5.39689

79

1.21330

119

0.36954

0

35.2024

40

5.17519

80

1.17393

120

0.35982

1

33.3269

41

4.96392

81

1.13604

121

0.35042

2

31.5635

42

4.76253

82

1.09958

122

0.3413

3

29.9058

43

4.57050

83

1.06448

123

0.33246

4

28.3459

44

4.38736

84

1.03069

124

0.32390

5

26.8778

45

4.21263

85

0.99815

125

0.31559

6

25.4954

46

4.04589

86

0.96681

126

0.30754

7

24.1932

47

3.88673

87

0.93662

127

0.29974

8

22.5662

48

3.73476

88

0.90753

128

0.29216

9

21.8094

49

3.58962

89

0.87950

129

0.28482

10

20.7184

50

3.45097

90

0.85248

130

0.27770

11

19.6891

51

3.31847

91

0.82643

131

0.27078

12

18.7177

52

3.19183

92

0.80132

132

0.26408

13

17.8005

53

3.07075

93

0.77709

133

0.25757

14

16.9341

54

2.95896

94

0.75373

134

0.25125

15

16.1156

55

2.84421

95

0.73119

135

0.24512

16

15.3418

56

2.73823

96

0.70944

136

0.23916

17

14.6181

57

2.63682

97

0.68844

137

0.23338

18

13.9180

58

2.53973

98

0.66818

138

0.22776

19

13.2631

59

2.44677

99

0.64862

139

0.22231

43

Appendix 2 Discharge temp. sensor table (°C-- kΩ)

44

°C

kΩ

°C

°C

kΩ

-20

542.7

20

-19

511.9

21

68.66

60

13.59

100

3.702

65.62

61

13.11

101

3.595

-18

483

22

62.73

62

12.65

102

3.492

-17

455.9

-16

430.5

23

59.98

63

12.21

103

3.392

24

57.37

64

11.79

104

3.296

-15

406.7

25

54.89

65

11.38

105

3.203

-14

384.3

26

52.53

66

10.99

106

3.113

-13

363.3

27

50.28

67

10.61

107

3.025

-12

343.6

28

48.14

68

10.25

108

2.941

kΩ

°C

kΩ

-11

325.1

29

46.11

69

9.902

109

2.86

-10

307.7

30

44.17

70

9.569

110

2.781

-9

291.3

31

42.33

71

9.248

111

2.704

-8

275.9

32

40.57

72

8.94

112

2.63

-7

261.4

33

38.89

73

8.643

113

2.559

-6

247.8

34

37.3

74

8.358

114

2.489

-5

234.9

35

35.78

75

8.084

115

2.422

-4

222.8

36

34.32

76

7.82

116

2.357

-3

211.4

37

32.94

77

7.566

117

2.294

-2

200.7

38

31.62

78

7.321

118

2.233

-1

190.5

39

30.36

79

7.086

119

2.174

0

180.9

40

29.15

80

6.859

120

2.117

1

171.9

41

28

81

6.641

121

2.061

2

163.3

42

26.9

82

6.43

122

2.007

3

155.2

43

25.86

83

6.228

123

1.955

4

147.6

44

24.85

84

6.033

124

1.905

5

140.4

45

23.89

85

5.844

125

1.856

6

133.5

46

22.89

86

5.663

126

1.808

7

127.1

47

22.1

87

5.488

127

1.762

8

121

48

21.26

88

5.32

128

1.717

9

115.2

49

20.46

89

5.157

129

1.674

10

109.8

50

19.69

90

5

130

1.632

11

104.6

51

18.96

91

4.849

12

99.69

52

18.26

92

4.703

13

95.05

53

17.58

93

4.562

14

90.66

54

16.94

94

4.426

15

86.49

55

16.32

95

4.294

16

82.54

56

15.73

96

4.167

17

78.79

57

15.16

97

4.045

18

75.24

58

14.62

98

3.927

19

71.86

59

14.09

99

3.812

B(25/50)=3950K R(90℃)=5KΩ±3%

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46

Via Gettuglio Mansoldo (Loc. La Macia) 37040 Arcole Verona, Italy Tel. +39 - 045.76.36.585 r.a. Fax +39 - 045.76.36.551 r.a. www.maxa.it

e-mail: [email protected]