SERVICE MANUAL FOR MVH

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SERVICE MANUAL

DC Inverter Multi-Split Air-Condition Unit

TAS-09EH/O TAS-12EH/O TAS-18EH/O TAS-24EH/O TAS-24MVH/O

TAS-18MVH/O

Indoor Unit

TAS-09MVH

TAS-12MVH

TAS-09EH

TAS-12EH

TAS-18EH

TAS-24EH

Outdoor Unit

TAS-18MVH/O

TAS-24MVH/O

TAS-09EH/O

TAS-12EH/O

TAS-18EH/O

TAS-24EH/O

REFRIGERENT

R410A

HEAT PUMP

1 SERVICE MANUAL FOR AMERICA

Table of Contents

2. PRODUCT DATA SHEET .................................................................................... 2-1

13. EXPLODED VIEWS AND SPARE PARTS LISTS ................................................ 13-1

2 SERVICE MANUAL FOR AMERICA

1. INTRODUCTION

1.1 General

The new CMV and CS is a high efficiency DC inverter technology outdoor unit, since it’s a lego concept unit, it can be matched to several inverter indoor units such as wall mounted type with a capacity range of 9000 – 12000 BTU for each single indoor unit.

1.2 Main

DC Inverter

R410a sine wave form and 120 degree rectangular wave form in compressor driver sensor less inverter compressor driver high speed calculation for accurate sine wave form vector control smart PFC control fuzzy logic con trol

High SEER

Lego Concept

Pre-Charged .

Cooling operation at outdoor temperature down to 50

0

Heating operation at outdoor temperature down to 5

0

F

F.

Variable Speed outdoor fan.

Low noise level

EEV for each indoor unit

1.3 Tubing Connections

Flare type interconnecting tubing to be produced on site.

For further details please refer to APPENDIX A on this manual, and to the relevant indoor service

Manual,

1.4 Inbox Documentation

Each indoor unit is supplied with its own installation and operation manuals.

3 SERVICE MANUAL FOR AMERICA

2 . 1 O u t d o o r u n i t d a t a

Item

Capacity (BTU)

Cooling

Heating

SEER

HSPF

EER Cooling/COP Heating

Op Range Cool °F

Op Range Heat °F

Remote control setting temp.range °F

Dehumidification (Pts/hr)

Voltage

Current (A)

Rated/Max

Cooling

Heating

Power Consumption

(KW)Rated/Max

Cooling

Heating

Max Overload Protection

Indoor Air Circulation: L / M / H(CFM)

Indoor Noise level dB(A): L / M / H

Outdoor Fan Speed (RPM)

Outdoor Noise Level dB(A)

Indoor Fan Speeds

Connection Method

Max Pipe Length (Ft.)

Max Elevation (Ft.)

Pipe Size (In.)

Service Port Connection (In.)

Indoor Dimensions W x D x H(In.)

Indoor Package Dimensions W x D x H(In.)

Indoor Net Weight (lbs.)

Indoor Gross Weight(lbs. )

Outdoor Dimensions W x D x H(In.)

Outdoor Package Dimensions W x D x H(In.)

Outdoor Net Weight (lbs.)

Outdoor Gross Weight(lbs. )

Refrigerant

DC INVERTER 1:1

Inverter 9K

9000

Inverter 12K Inverter 18K Inverter 24K

12000 18000 24000

11000

15000 19000 24500

18.00 18.00 17.17 15.69

8.6 8.7 8.7 8.5

5~131 minus 4 ~ 109

5~131 minus 4 ~ 109

5~131 5~131 minus 4 ~ 109 minus 4 ~ 109

61~90 61~90 61~90 61~90

1.58 2.11 2.989 4.4

115/60 115/60 230/60 230/60

0.61/1.06 0.862/1.236 1.345/2.3 2.504/2.765

20 20 20 25

212/270/315 341/382/430 441/530/618 518/588/677

42/38/35 42/38/35 50/47/44 50/47/44

100~900 100~900 100~900 100~900

~ 57 ~ 57 ~ 57 ~ 57

950/1150/1300 750/900/1000 950/1100/1230 1080/1180/1280

Flare Flare Flare Flare

82ft/25m 82ft/25m 82ft/25m 82ft/25m

32.8 Ft/10m

1/4" / 3/8"

32.8 Ft/10m

1/4" / 1/2"

32.8 Ft/10m

3/8" / 5/8"

32.8 Ft/10m

3/8" / 5/8"

1/2" 1/2" 1/2" 1/2"

33.4×13.4×9.8 38.4×14.3×11.0 45.8×15.2×12.0 52.0×15.6×12.0

33.9×13.8×10.4 39.0×14.8×11.8 46.3×15.6×12.6 52.6×16.1×12.6

22

31 40 44

26 37 51 55

35.6×12.7×22.6 38.6×15.7×26.0 38.2×15.6×29.9 40.2×17.1×34.1

36.2×13.2×23.0 39.2×16.3×26.8 39.0×16.1×30.3 40.6×17.3×37.8

73 106 123 143

77 117 132 154

R410A R410A R410A R410A

4 SERVICE MANUAL FOR AMERICA

Function

Rated Voltage

Rated Frequency

Circuit Breaker Size

Op Range Cool °F

Op Range Heat °F

Rated Current (RLA) (Heating/Cooling)

Refrigerant (lbs)

outdoor

Cooling

Heating

Fan Motor

Outdoor

Fan

Compressor

Condenser

Rated Capacity (Btu)

Capacity Invert Range (W)

Input / Actual Input (W)

Max. Power (W)

Max Current (A)

SEER

Rated Capacity (Btu)

Capacity Invert Range (W)

Input / Actual Input (W)

Max. Power (W)

Max Current (A)

Declared COP / Actual COP

(w/w.h.)

Model

Input (W)

Capacitor (UFD)

Fan Motor FLA (A)

Fan Speed (RPM)

Fan Type

Fan Blade Diameter (in)

Air Flow Volume of Outdoor Unit

(CFM)(M^3/h)

Model

TYPE

Brand

Capacity (W)

Input (W)

Number of Rows

Tube Pitch x Row Pitch

Fin spacing

Fin Type

Tube Outside Dia. and Type

Coil Length x Height x Width

Number of circuits

Unit Dimensions (W x H x D) (in)

Dimensions

Packing dimensions (W x H x D)

(in)

Net / Gross Weight (lb)

Design Length

Max Line Set Height

Max Line Set Length

Connection

Charge over Design Length

Connection Pipes

Design Pressure (PSI)

TAS-18MVH/O

Heat Pump

208-230 VAC

60 Hz

20A

TAS-24MVH/O

Heat Pump

208-230 VAC

60 Hz

30A

5~131 5~131 minus 4 ~ 109

6 / 6.7 A

R410A / 3.88 minus 4 ~ 109

8 / 8.7 A

R410A / 6.61

18,000 24,000

5000(1650-7100) 6400(1750-8300)

1380/1450 1830/1882

2420 2990

10.5 13

14.8 15.6*

22,000

25,000

5800(1790-7800) 7200(2000-8400)

1,550 / 1,580 2,000 / 2,060

2579

11.3

3,200

13.9

3.75 / 3.65 3.5 / 3.4

YDK-60A-6C

YDK-60A-6C

196

196

4 / 450 VAC

4/ 450 VAC

0.98 0.98

900/750/500

Axial

18.1

900/750/500

Axial

18.5

2800 3200

C-6RZ146H1A

C-7VRN153HOW

DC

DC

Sanyo

Sanyo

6420

7110

1635

1770

2-26 2-26

1 x .866 in

0.0708 in

1 x .866 in

Louvered Fin

0.375" Rifled Tube

0.0708 in

Louvered Fin

0.375" Rifled tube

28.66 x 25.6 x .866

28.66 x 25.6 x .988

30.23 x 31.96 x .866

31.57 x 31.96 x .866

4 4

36.5 x 14.25 x 27.6 37.8x13.54x33.31

39 x 16.14 x 30.32 41.73 x 18.5 x 36.41

114.64 / 123.47

16.4'

16.4'

49.21'

0.20 oz / Ft.

1/4" / 3/8"

623.66

163.14 / 185.18

16.4'

16.4'

49.21'

0.20 oz / Ft.

1/4" x 1/2"

623.66

5 SERVICE MANUAL FOR AMERICA

2 . 2 . 1

Indoor

TAS-09MVH

S p e c i f i c a t i o n s

FAN MOTOR

Model

Input (W)

Capacitor (UFD)

Fan Motor FLA (A)

Speed (Hi/Med/Low) (RPM)

TAS-09MVH

YDK-16-4C

54

1.2/450VAC

0.25

1150 / 950 / 750

Evaporator

Number of rows

Tube pitch row / pitch (in)

Fin spacing (in)

Fin Type

Tube outside dia.(in) / Type

Coil Length x height x width (in)

Air Flow (Hi/Med/Low) (CFM)

Noise Level (dB(A)

Fan Type

Fan Diameter (in)

Fan Length (in)

Design Pressure (PSI)

22

.69 / .50

0.0614

Louvered Fin

0.2756 Rifled Tube

25.39 x 11.06 x 1

353 / 306 / 194

≤42

Cross Flow

3.661

24.921

551.14

Unit Dimensions (W x H x D) (in)

Packing Dimensions W x H x D) (in)

Net / Gross Wt (lbs)

31.1 x 10.63 x 8.27

33.86 x 13.78 x 10.43

26.45 / 30.86

Dehumidifying Volume (pt/hr) 1.8

Auto-restart YES

2 . 2 . 2

TAS-12MVH

S p e c i f i c a t i o n s

Indoor

FAN MOTOR

Model

Input (W)

Capacitor (UFD)

Fan Motor FLA (A)

Speed (Hi/Med/Low)

(RPM)

Number of rows

Tube pitch row / pitch (in)

TAS-12MVH

YDK-16-4C

54

1.2/450VAC

0.25

1200 / 950 / 850 (Cooling) 1200 / 950 / 750

(Heating)

22

.69 / .50

0.059

Louvered Fin

Evaporator

Fin spacing (in)

Fin Type

Tube outside dia.(in) /

Type

Coil Length x height x width (in)

0.2756 Rifled Tube

30.98 x 11.06 x 1

Air Flow (Hi/Med/Low) (CFM)

Noise Level (dB(A)

Fan Type

459 / 406 / 218

≤45

Cross Flow

Fan Diameter (in)

Fan Length (in)

3.818

30.393

Design Pressure (PSI)

Unit Dimensions (W x H x D) (in)

Packing Dimensions W x H x D) (in)

Net / Gross Wt (lbs)

551.14

36.61 x 10.83 x 8.27

39.96 x 13.97 x 12.79

30.86 / 37.48

Dehumidifying Volume (pt/hr)

3.03

Auto-restart YES

6 SERVICE MANUAL FOR AMERICA

Standard conditions in accordance with ANSI/AHAM RAC-1-2003, and UL 484.

Cooling:

Indoor: 80 o

Outdoor: 95 o

FDB 67 o

F DB 75

F WB o

F WB

Heating:

Indoor: 70

o

F DB 60

Outdoor: 47

o

o

F DB 43

F WB

o

F WB

Cooling

Heating

Voltage

Upper limit (DB)

Lower limit (DB)

Upper limit (DB)

Lower limit (DB)

Outdoor

110

o

F

5 o

F

75

o

F

5 o

F

2PH 198–264V/115V

3PH N/A

4.1 outdoor Unit: TAS-09EH/O

7 SERVICE MANUAL FOR AMERICA

4.2 outdoor Unit: TAS-12EH/O

4.3 outdoor Unit: TAS-18EH/O

4.4 outdoor Unit: TAS-24EH/O

8 SERVICE MANUAL FOR AMERICA

4.5 outdoor Unit: TAS-18MVH/O

9 SERVICE MANUAL FOR AMERICA

4.7 outdoor Unit: TAS-24MVH/O

50

956

560

5.1 Indoor Units Data

5.1.1 Indoor Units Capacity For 9000BTU

Capacity

9000BTU

Model

TAS-09MVH

TAS-09EH

5.1.1.1 Cooling Capacity (BTU)---Run Model (Unit A,B,C or D),230/115V,Indoor fan at high speed

INDOOR ENTERING AIR DB/WB TEMPERATURE [

0

F]

OUTDOOR

ENTERING AIR DB

TEMPERATURE[

0

F]

DATA 72/59 75/63 81/66 84/70 90/73

14~68

TC 80 - 110 % of nominal

10 SERVICE MANUAL FOR AMERICA

(protection range)

SC

PI

TC

77

8712

PI 0.58

80 - 105 % of nominal

25 - 50 % of nominal

9252 9828 10404 10980

0.59

0.6

86

PI 0.65

0.66

0.67

95

PI 0.71

0.72

0.74

104

PI 0.78

0.79

0.8

115

PI 0.86

0.87

0.88

L E G E N D

TC – Total Cooling Capacity, BTU SC – Sensible Capacity, BTU PI – Power Input, kW

WB – Wet Bulb Temp., (

0

F

) DB – Dry Bulb Temp., (

0

F

) ID – Indoor OD – Outdoor

5.1.1.2 Heating Capacity (BTU)---Run Model (Unit A,B,C or D),230/115V,Indoor fan at high speed

ID COIL ENTERING AIR DB TEMPERATURE [

0

F]

OD COILENTERING

AIR DB/WB TEM

PERATU RE[

0

F]

DATA 59 68 77

5/3

14/10

20/18

30/28

36/34

45/43

50/48

59/54

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

6912

0.49

7668

0.59

8208

0.67

8532

0.71

8748

0.89

11232

0.77

11880

0.82

12528

0.86

6372

0.54

7128

0.64

7776

0.72

8100

0.75

8208

0.95

10800

0.82

11448

0.87

12096

0.90

5940

0.59

6696

0.70

7236

0.77

7560

0.80

7776

1.01

10368

0.87

10908

0.92

11556

0.96

11 SERVICE MANUAL FOR AMERICA

59~75

(Protection Range)

TC

PI

5.1.1.3 Capacity Correction Factors

85 - 105 % of nominal

80 - 120 % of nominal

Cooling Capacity Ratio Vs. Outdoor Temperature

Cooling Capacity Correction Factor

1.4

1.2

1

0.8

0.6

0.4

0.2

0

77 86 95 104

Outdoor Temp.(deg F)

115

Heating Capacity Ratio Vs. Outdoor Temperature

Heating Capacity Correction Factor

1.4

1.2

1

0.8

0.6

0.4

0.2

0

5 14 20 30 36 45 50 59

Outdoor Temp.(deg F)

90/73

84/70

81/66

75/63

72/59

59

68

77

12 SERVICE MANUAL FOR AMERICA

5.2.1 Indoor Units Capacity For 12000BTU

Capacity

12000BTU

Model

TAS-12MVH

TAS-12EH

5.2.1.1 Cooling Capacity (BTU)---Run Model (Unit A,B,C or D),230/115V,Indoor fan at high speed

INDOOR ENTERING AIR DB/WB TEMPERATURE [

0

F]

OUTDOOR

ENTERING AIR DB

TEMPERATURE[

0

F]

TC

14~68

(protection range)

SC

PI

DATA 72/59 75/63 81/66 84/70 90/73

80 - 110 % of nominal

80 - 105 % of nominal

25 - 50 % of nominal

77

86

95

TC

SC

PI

TC

SC

PI

TC

SC

PI

TC

11616 12336 13104 13872 14640

10421 10603 10845 11027 11269

0.72 0.73 0.75 0.76 0.77

11040 11808 12576 13296 14064

10118 10361 10542 10785 10966

0.81 0.82 0.83 0.85 0.86

10464 11232 12000 12768 13536

9876 10058 10300 10542 10724

0.88 0.90 0.92 0.93 0.94

9936 10704 11424 12192 12960

104

PI

TC

0.97 0.98 0.99 1.01 1.02

9264 10032 10752 11520 12288

115

PI 1.07 1.08 1.09 1.11 1.13

13 SERVICE MANUAL FOR AMERICA

5.2.1.2 Heating Capacity (KW)---Run Model (Unit A,B,C or D),230V,Indoor fan at high speed

ID COIL ENTERING AIR DB TEMPERATURE [

0

F]

OD COILENTERING

AIR DB/WB TEM

PERATU RE[

0

F]

DATA 59 68 77

5/3

14/10

20/18

30/28

36/34

45/43

50/48

59/54

59~75

(Protection Range)

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

5.2.1.3 Capacity Correction Factors

Cooling Capacity Ratio Vs. Outdoor Temperature

8960

0.66

9940

0.80

10640

0.91

11060

0.96

11340

0.99

14560

1.04

15400

1.11

16240

1.16

8260

0.73

9240

0.87

10080

0.97

10500

1.02

10640

1.06

14000

1.11

14840

1.18

15680

1.22

85 - 105 % of nominal

80 - 120 % of nominal

7700

0.80

8680

0.95

9380

1.04

9800

1.08

10080

1.12

13440

1.18

14140

1.25

14980

1.30

Cooling Capacity Correction Factor

1.4

1.2

1

0.8

0.6

0.4

0.2

0

90/73

84/70

81/66

75/63

72/59

77 86 95 104

Outdoor Temp.(deg F)

115

14 SERVICE MANUAL FOR AMERICA

Heating Capacity Ratio Vs. Outdoor Temperature

Heating Capacity Correction Factor

1.4

1.2

1

0.8

0.6

0.4

0.2

0

59

68

77

5 14 20 30 36 45 50 59

Outdoor Temp.(deg F)

5.2.3 Indoor Units Capacity For 18000BTU

Capacity

18000BTU

Model

TAS-18EH

5.2.3.1 Cooling Capacity (BTU)---Run Model ,230V,Indoor fan at high speed

INDOOR ENTERING AIR DB/WB TEMPERATURE [

0

F]

OUTDOOR

ENTERING AIR DB

TEMPERATURE[0F]

14~68

(protection range)

77

TC

SC

PI

TC

SC

80 - 110 % of nominal

80 - 105 % of nominal

25 - 50 % of nominal

17424 18504

15480 15750

19656 20808 21960

16110 16380 16740

86

95

TC

SC

TC

SC

16560

15030

15696

14670

17712

15390

16848

14940

18864 19944 21096

15660 16020 16290

18000 19152 20304

15300 15660 15930

104

115

TC

SC

TC

SC

14904

14310

13896

13770

16056

14580

15048

14130

17136 18288 19440

14940 15210 15570

16128 17280 18432

14400 14760 15030

15 SERVICE MANUAL FOR AMERICA

5.2.3.2 Heating Capacity (BTU)---Run Model,230V,Indoor fan at high speed

ID COIL ENTERING AIR DB TEMPERATURE [

0

F]

OD COILENTERING

AIR DB/WB TEM

PERATU RE[

0

F]

DATA 59 68 77

5/3

14/10

20/18

30/28

36/34

45/43

50/48

59/54

59~75

(Protection Range)

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

5.2.3.3 Capacity Correction Factors

Cooling Capacity Ratio Vs. Outdoor Temperature

12160

0.96

13490

1.15

14440

1.31

15010

1.39

15390

1.42

19760

1.50

20900

1.60

22040

1.68

11210

1.05

12540

1.25

13680

1.40

14250

1.46

14440

1.52

19000

1.60

20140

1.70

21280

1.76

85 - 105 % of nominal

80 - 120 % of nominal

10450

1.15

11780

1.37

12730

1.50

13300

1.56

13680

1.62

18240

1.70

19190

1.80

20330

1.87

Cooling Capacity Correction Factor

1.4

1.2

1

0.8

0.6

0.4

0.2

0

90/73

84/70

81/66

75/63

72/59

77 86 95 104

Outdoor Temp.(deg F)

115

16 SERVICE MANUAL FOR AMERICA

Heating Capacity Ratio Vs. Outdoor Temperature

Heating Capacity Correction Factor

1.4

1.2

1

0.8

0.6

0.4

0.2

0

59

68

77

5 14 20 30 36 45 50 59

Outdoor Temp.(deg F)

5.2.4 Indoor Units Capacity For 24000BTU

Capacity

24000BTU

Model

TAS-24EH

5.2.4.1 Cooling Capacity (BTU)---Run Model,230V,Indoor fan at high speed

INDOOR ENTERING AIR DB/WB TEMPERATURE [

0

F]

OUTDOOR

ENTERING AIR DB

TEMPERATURE[0F]

14~68

(protection range)

TC

SC

PI

80 - 110 % of nominal

80 - 105 % of nominal

25 - 50 % of nominal

77

PI 1.72 1.75 1.78 1.81 1.84

86

PI 1.93 1.96 1.99 2.02 2.05

95

PI 2.11 2.14 2.20 2.23 2.26

104

PI 2.32 2.35 2.38 2.41 2.44

115

PI 2.56 2.59 2.62 2.65 2.71

17 SERVICE MANUAL FOR AMERICA

5.2.4.2 Heating Capacity (BTU)---Run Model,230V,Indoor fan at high speed

ID COIL ENTERING AIR DB TEMPERATURE [

0

F]

OD COILENTERING

AIR DB/WB TEM

PERATU RE[

0

F]

DATA 59 68 77

5/3

14/10

20/18

30/28

36/34

45/43

50/48

59/54

59~75

(Protection Range)

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

PI

TC

5.2.4.3 Capacity Correction Factors

Cooling Capacity Ratio Vs. Outdoor Temperature

15680

1.35

17395

1.63

18620

1.85

19355

1.96

19845

2.01

25480

2.12

26950

2.26

28420

2.37

14455

1.49

16170

1.76

17640

1.98

18375

2.07

18620

2.15

24500

2.26

25970

2.40

27440

2.48

85 - 105 % of nominal

80 - 120 % of nominal

13475

1.63

15190

1.93

16415

2.12

17150

2.20

17640

2.29

23520

2.40

24745

2.54

26215

2.65

Cooling Capacity Correction Factor

1.4

1.2

1

0.8

0.6

0.4

0.2

0

90/73

84/70

81/66

75/63

72/59

77 86 95 104

Outdoor Temp.(deg F)

115

18 SERVICE MANUAL FOR AMERICA

Heating Capacity Ratio Vs. Outdoor Temperature

Heating Capacity Correction Factor

1.4

1.2

1

0.8

0.6

0.4

0.2

0

59

68

77

5 14 20 30 36 45 50 59

Outdoor Temp.(deg F)

5.3 Capacity Correction Factor Due to Tubing Length (One Way)

TAS-09MVH

TAS-09EH

TAS-18EH

5.3.1.1 Cooling

TAS-12MVH

TAS-12EH

TAS-24EH

5.3.1.2 Heating

19 SERVICE MANUAL FOR AMERICA

6. Pressure Curve

6.1 Model

TAS-09EH/O

TAS-12EH/O

TAS-18EH/O

TAS-24EH/O

TAS-18MVH/O

TAS-24MVH/O

6.1.1 Suction Pressure Curve

6.1.2 Discharge Pressure Curve

20 SERVICE MANUAL FOR AMERICA

Model

Power Supply

Connected to

Maximum Current

Inrush Current

Starting Current

Circuit breaker

Power supply wiring - No. x cross section

Interconnecting cable - No. x cross section

Model

Power Supply

Connected to

Maximum Current

Inrush Current

Starting Current

Circuit breaker

Power supply wiring - No. x cross section

Interconnecting cable - No. x cross section

Model

Power Supply

Connected to

Maximum Current

Inrush Current

Starting Current

Circuit breaker

TAS-09EH/O

1 PH, 115 VAC,60Hz

Outdoor

9.3A

40A

1A

30A

1 X 3 X 2.5 mm

2

2 X 4 X 1 mm

2

TAS-12EH/O

1 PH, 115 VAC,60Hz

Outdoor

10.8A

40A

1A

30A

1 X 3 X 2.5 mm

2

2 X 4 X 1 mm

2

TAS-18EH/O

1 PH, 230 VAC,60Hz

Outdoor

10.1A

40A

1A

30A

21 SERVICE MANUAL FOR AMERICA

Power supply wiring - No. x cross section

Interconnecting cable - No. x cross section

1 X 3 X 2.5 mm

2

2 X 4 X 1 mm

2

Model

Power Supply

Connected to

Maximum Current

Inrush Current

Starting Current

Circuit breaker

Power supply wiring - No. x cross section

TAS-24EH/O

1 PH, 230 VAC,60Hz

Outdoor

12.2A

35A

1A

30A

1 X 3 X 2.5 mm

2

2 X 4 X 1 mm

2

Interconnecting cable - No. x cross section

Model

Power Supply

Connected to

Maximum Current

Inrush Current

Starting Current

Circuit breaker

TAS-18MVH/O

1 PH, 230 VAC,60Hz

Outdoor

10.5A

40A

Power supply wiring - No. x cross section

1A

20A

1 X 3 X 2.5 mm

2

2 X 4 X 1 mm

2

Interconnecting cable - No. x cross section

Model

Power Supply

Connected to

Maximum Current

Inrush Current

TAS-24MVH/O

1 PH, 230 VAC,60Hz

Outdoor

13A

35A

Starting Current

Circuit breaker

Power supply wiring - No. x cross section

1A

30A

1 X 3 X 2.5 mm

2

2 X 4 X 1 mm

2

Interconnecting cable - No. x cross section

Note:

Inrush current is the current when power is up. (charging the DC capacitors at outdoor unit controller).

Starting current is the current when starting the compressor

NOTE

Power wiring cord should comply with local lows and electrical regulations requirements.

22 SERVICE MANUAL FOR AMERICA

23 SERVICE MANUAL FOR AMERICA

8 . 5 T A S - 1 8 M V H / O W i r i n g D i a g r a m

24 SERVICE MANUAL FOR AMERICA

8 . 6 T A S - 2 4 M V H / O W i r i n g D i a g r a m

8 . 4 T A S - 1 8 M V H / O T A S - 2 4 M V H / O

I n d o o r - O u t d o o r W i r i n g D i a g r a m

25 SERVICE MANUAL FOR AMERICA

8 . 5 T A S - 0 9 E H / O T A S - 1 2 E H / O T A S - 1 8 E H / O T A S - 2 4 E H / O

I n d o o r - O u t d o o r W i r i n g D i a g r a m

9. REFRIGERATION

26 SERVICE MANUAL FOR AMERICA

9 . 1 T A S - 0 9 E H / O R e f r i g e r a t i o n D i a g r a m

9 . 2 T A S - 1 2 E H / O R e f r i g e r a t i o n D i a g r a m

9 . 3 T A S - 1 8 E H / O T A S - 2 4 E H / O R e f r i g e r a t i o n D i a g r a m

27 SERVICE MANUAL FOR AMERICA

9 . 4 T A S - 1 8 M V H / O R e f r i g e r a t i o n D i a g r a m

9 . 5 T A S - 2 4 M V H / O R e f r i g e r a t i o n D i a g r a m

28 SERVICE MANUAL FOR AMERICA

1 0 . T U B I N G C O N N E C T I O N S

29 SERVICE MANUAL FOR AMERICA

T U B E ( I n c h )

¼ ” ~ ” ½ ” ~ ” ¾ ”

T O R Q U E ( N m )

F l a r e N u t s

V a l v e C a p

Service Port Cap

11-13 40-45 60-65 70-75 80-85

13-20 13-20 18-25 18-25 40-50

11-13 11-13 11-13 11-13 11-13

Protection

2. Refrigerant Valve Port (use Allen wrench to open/close)

Nut

7. Unit Back Side

When the outdoor unit is installed above the indoor unit an oil trap is required every 5m along the suction line at the lowest point of the riser. Incase the indoor unit is installed above the outdoor, no trap is required

1 1 . C O N T R O L S Y S T E M

30 SERVICE MANUAL FOR AMERICA

Function of Inverter indoor unit

一、summary

1.

This control is use for DC Multi-Spilt air conditioners.

2.

Power of indoor unit supply is 220-240V/50Hz, voltage range is 170V~270V.

3.

Control precision of indoor temperature is ±1.8

O

F.

4.

Indoor fan motor is PG motor.

5.

Control accord with :

 GB5956-91《safe requirement of air conditioner》

 GB7725-2004《air conditioner》;GB3797-87《control equipment of electrical equipment》

 Vibrancy test:frequency 50Hz,acceleration 2.5g

 PCB ought to accord with GB4588.1 and GB4588.2

 Electromagnetism compatibility ought to accord with relate standard of nation.

二.Base parameter

1. Use condition:ambient temperature 5

O

F~185

O

F, relative humidity =30-95%.

2. Receive distance of remote:<10m

3. Angle of remote:<120 degree

4. Control precision of temperature: ±1.8

O

F

5. Speed precision of indoor fan motor: ±10RPM

6. Time precision: <0.1%

三.Major function of control

1. Remote

Turn on/off

 Mode select

 auto

 cooling

 dehumidify

 heating 

 ventilation

Indoor fan speed select

 manual mode: high, middle, low speed

 auto mode: accord difference of indoor room temp. and set temp. automatic select.

 Temperature setting

 Cooling: 60

O

F――90

O

F, default is 77

O

F

 Heating : 60

O

F――90

O

F, default is 77

O

F

 Dehumidify: default is 77

O

F and it can’t adjust.

 Auto: default is 77

O

F and it can’t adjust.

 Ventilation: 60

O

F――90

O

F, default is 77

O

F

 Sleeping

It can set or cancel 24HR sleep .

 Timer on or timer off

 Timer can set 24HR on or off.

 Air flower control.

 Turbo running

 Hold key

2. Main PCB board

31 SERVICE MANUAL FOR AMERICA

 five running modes

Auto, cooling, heating, dehumidify, ventilation.

 Timer function

 Indoor temperature detect.

 Indoor coil temperature detect.

 Indoor fan speed control

cooling: turbo/high speed/middle speed/low speed/ lower speed

heating: turbo/high speed/middle speed/low speed/ lower speed

 Indicate lamp

 green—running indicate

 yellow—timer indicate

 red—turbo running

 green—economic running

 Indoor temperature control

 Coil pipe of indoor unit overheat protection

 Coil pipe of indoor unit anti frost protection

 Sleep

 Swing

 Anti cold air in heating mode

 Indoor fan motor protection

Fault display

DC Inverter 1:1

24000BTU: high middle low mode

Cooling speed

Heating speed

1280

1280

1180

1180

1080

1080

18000BTU: mode

Cooling speed

Heating speed high middle

1230

1230

1000

1000 low

950

950

12000BTU: mode

Cooling speed

Heating speed high middle

1000

1000

900

900 low

750

750

9000BTU: mode

Cooling high middle

1300 1150 low

950

32 SERVICE MANUAL FOR AMERICA

speed

Heating speed

1300 1150 950

DC Inverter 1:2

PG motor speed:

12000BTU: mode

Cooling speed

Heating speed higher

1250

1250 high middle

1200

1200

950

950 low

850

850 lower

850

750

9000BTU: mode

Cooling speed

Heating speed higher

1250

1250 high middle

1150

1150

950

950 low

750

750 lower

750

750

四、operating mode

Air conditioner have four operating mode: auto, cooling, dehumidify, heating.

1.Cooling(ΔT=Troom temp.-Tset temp.)

 range of set temp. 60 O

F~90

O

F;

 compressor running as below figure: compressor on

CONT 5 MIN

off

-2

O

F

+2

O

F

ΔT

 It require outdoor unit to reduce power if indoor room temp. continuous less than set temp. for 5 minutes.

 Air blow function:indoor blower fan continuous running 20 seconds at low speed after air conditioner turn off in cooling mode. if the flap is swing, shutdown the flap after turn off indoor blower fan.

 Indoor blower fan can select one of four speed.

 Fan speed is determined by the difference of room temp. and set temp. in auto wind. speed

high

middle low

2

O

F

5

O

F

9

O

F

ΔT

 It have anti freeze protection of indoor coil ,fan motor fault protection, sensor fault protection, unit abnormal protection in cooling mode.

2.Dehumidify:(ΔT=Troom temp.-Tset temp.)

 range of set temp.: default is 77

O

F and it can’t change.

 The indoor blower fan is running at low speed for thirty seconds after air conditioner shutdown in dehumidify mode.

33 SERVICE MANUAL FOR AMERICA

 The indoor blower fan is running at low speed and it can’t change.

 Air conditioner haven’t turbo and economic function in dehumidify mode.

 Flap position: flap at 85 degree position and it can’t change.

 It require indoor unit to reduce power if indoor room temp. continuous less than or equal to 15 degree for 5 minutes, when room temp. is more than or equal to 17 degree, it add the power of indoor unit.

3.Heating(ΔT=Troom temp.-Tset temp.)

 Range of set temp. 60

O

F~90

O

F;

 Compressor running as below figure. compressor on

CONT 5 MIN

off

-7

O

F

-4

O

F

ΔT

 It require outdoor unit to reduce power if indoor room temp. continuous more than set temp. for 5 minutes.

 Indoor blower fan continuous running for 30 seconds at current speed after indoor unit reduce power.

 Indoor blower fan can select one of four speed.

 Fan speed is determined by the difference of room temp. and set temp. in auto wind.(but anti cold wind is prior) speed

high

middle low

0

O

F

4

O

F

6

O

F

9

O

F

ΔT

 Anti cold wind:

 When air conditioner first power on or change mode, indoor blower fan didn’t running. When the coil pipe temp. of indoor unit is more than 86

O

F,start turnning on indoor blower fan(lower speed).if the coil pipe temp. of indoor unit drop to less than or equal to 77

O

F,it shutdown indoor blower fan.

 Heat wind control:

If coil pipe temp. of indoor unit is more than or equal to 90

O

F, indoor blower fan is running at set speed.

If coil pipe temp. of indoor unit is less than 90

O

F, indoor blower fan is running as below figure. speed

set speed

lower

turn off

77

O

F

86

O

F

90

O

F

coil pipe temp.

Note:①When Tp≤86

O

F,flap is open at 85°and is running at lower speed, when Tp

≥90

O

F, it is running at set speed and flap revert to prior state.

②If Tp≤77

O

F,turn off indoor blower fan.

 Defrost control

Indoor blower fan turn off when it enter defrost.

 Clear quantity of heat

34 SERVICE MANUAL FOR AMERICA

 Turn off air conditioner in heating mode, if the coil pipe temp. of indoor unit is more than 104

O

F, indoor blower fan is running at low speed. If the coil pipe temp. of indoor unit is less than or equal to 104

O

F or turn off air conditioner over 2 minutes,

It shutdown indoor blower fan.

4. Auto mode

 set temp. is 77

O

F and it can’t change;

 Press emergency key in waiting state or select auto mode by remote, air conditioner enter auto mode and set temp. is 77

O

F.

Indoor blower fan is running for 20 seconds at lower speed after select auto mode, the running lamp is light, it select correspond running mode accord to room temp.: room temp. >79

O

F, select cooling mode. room temp. <70

O

F, select heating mode.

70

O

F≤room temp.≤79

O

F,select ventilation mode.

When the running mode has confirmed, it can’t change, if it reenter auto mode, it select running mode again accord to room temp..

 When the mode of auto select is clash with other indoor unit running mode:

 If it auto select is cooling mode and other indoor unit is running heating mode, then it select ventilation mode.

 If it auto select is heating mode, but other indoor unit is running cooling mode, display error of mode clash.

 if it select is ventilation mode, then it running is ventilation.

5.Ventilation

1) Range of set temp.:60

O

F -90

O

F.

2) Indoor blower fan is operate same as cooling mode.

3) Flap is operate same as cooling mode.

4) Indoor unit no power require in ventilation mode.

6 Timer and sleep

 timer

 Remote can set 1-24 hours timer on or timer off.

 Air conditioner is running .

If set timer off, air conditioner is continuous running and display timer time, when timer time is end, it shutdown air conditioner.

 air conditioner is shutdown .

If set timer on, air conditioner at waiting state, it display timer time. when timer time is end, it turn on air conditioner.

 when it set timer , the timer lamp is light and display set temp.

 sleep

If set sleep, the sleep lamp is light, set temp. and fan speed can be adjust.

Timer and sleep can set together, which time is end then perform this function.

7. Air flow control

Define:flap full open angle is 0°, and full close angle is 125°。

35 SERVICE MANUAL FOR AMERICA

Full open

Fixed

Full close

 Power on, flap run to full close position.

 Turn off air conditioner, flap run to full close position.

 Turn on air conditioner, flap first run to full open position, then run to correspond position.

 Fixed wind:

 If turn on air conditioner and set fixed wind at first power on, flap first run to full open position then stop at 40°position.

 If change to fixed wind from swing wind or natural wind, the flap stop at current position and store the position.

Swing wind:

Flap start position is 20°.

Flap is running between 20°and 85°.

 Natural wind is swing two cycle and stop 15 seconds, flap is stop at current

8. Turbo function position at that moment.

Flap stop at 85°at anti cold wind or defrost procedure in heating mode.

Flap stop at 85°in first 20 seconds of auto mode.

Flap is drive by step motor.

Turbo is use in cooling /heating/ventilation mode, the indoor blower fan is running at super speed.

(1) enter condition: press turbo key of remote.

(2)end condition:

① running time more than or equal to 15 minutes.

② press turbo key of remote again.

(3) all restrict and protect condition are active in turbo running.

(4) return to prior state after end turbo running.

五、Protection

1. Prevent frost of indoor coil pipe (cooling and dehumidify mode)

 When the temp. of middle coil pipe is less than or equal to 32

O

F, indoor blower fan is running at high speed, if the temp. less than or equal to 30

O

F for 5 minutes, it turn off compressor, when the temp. more than or equal to 45

O

F, it exit protection.

2. Overheat of indoor coil pipe(heating mode)

 When the temp. of middle coil pipe more than or equal to 135

O

F, indoor blower fan is running at high speed, if the temp. more than or equal to 149

O

F , it turn off outdoor unit, when the temp. less than or equal to 129

O

F, it exit protection.

3. Indoor fan motor fault(only PG motor)

36 SERVICE MANUAL FOR AMERICA

 If no feedback signal continuous 30 seconds during PG motor running, it turn off air conditioner and display fan motor error.

4. Communicate fault

 If it can’t receive correct signals after air conditioner has run for 60 seconds, it turn off air conditioner and display communicate error.

5.Indoor sensor fault

 When indoor sensor cut off or short, it shutdown air conditioner and display sensor error.

6. When outdoor unit is fault, indoor unit only display fault.

六、Other function

Emergency key

Press emergency key after power on, air conditioner select auto mode, auto fan speed, natural wind, it set temp. is 77

O

F. If press emergency key again, air conditioner is shutdown.

七、Sound indication

1. The buzzer will sound when air conditioner turn on , turn off, power on or receive remote signal.

八、Display

1.After turn on air conditioner, mode clash display d1 and timer lamp flash (light one second, extinguish one second), defrost display dF , the running lamp flash (light one second, extinguish one second)indicate anti cold wind ,when air conditioner is normal running , the running lamp is light.

2.Set timer or sleep , the yellow lamp is light.

3.Outdoor unit and indoor unit fault display:

 Fault display of indoor unit: fault display

Communicate fault

Fan motor fault

Room temp. sensor fault

Temp. sensor of coil pipe outlet fault

F1

F4

F2

F3

F3

Temp. sensor of coil pipe entrance fault

Temp. sensor of coil pipe middle fault

 Fault display of outdoor unit: fault

F3

Transducer module protection

Over current display

P2

P3

P4

Discharge temperature of compressor overheat, ambient temperature overheat

DC voltage of outdoor unit abnormal

Leakage or reverse valve fault

Outdoor sensor fault

Compressor drive fault

P7

P8

F6

FC

九、Test Model

37 SERVICE MANUAL FOR AMERICA

1、Cooling

Condition Entering Method label Capacity Pressing Tubro for 5 times+Setting temp.77

O

F

A2

B2

Pressing Tubro for 5 times+Setting temp.75

O

F

Pressing Tubro for 5 times+Setting temp.73

O

F

B1

F1

EV

Pressing Tubro for 5 times+Setting temp.71

O

F

Pressing Tubro for 5 times+Setting temp.69

O

F

Pressing Tubro for 5 times+Setting temp.67

O

F

A2:Indoor temp. 95 OF,Compressor max

B2:Indoor temp. 82 OF,Compressor max

B1:Indoor temp. 82 OF,Compressor min

F1:Indoor temp. 67 OF,Compressor min

EV:Indoor temp.87 OF,Compressor mid

2、Heating

Condition Entering Method label Capacity Pressing Tubro for 5 times+Setting temp.77

O

F

H01

H11

Pressing Tubro for 5 times+Setting temp.79

O

F

Pressing Tubro for 5 times+Setting temp.81

O

F

H12

H22

H32

H2V

Pressing Tubro for 5 times+Setting temp.83

O

F

Pressing Tubro for 5 times+Setting temp.85

O

F

Pressing Tubro for 5 times+Setting temp.87

O

F

Pressing Tubro for 5 times+Setting temp.89

O

F

H01:Indoor temp. 62

O

F,Compressor min

H11:Indoor temp. 47

O

F,Compressor min

H12:Indoor temp. 47

O

F,Compressor max

H22:Indoor temp. 35

O

F,Compressor max

H32:Indoor temp. 17

O

F,Compressor max

H2V:Indoor temp. 35

O

F,Compressor mid

Function of Dual DC Inverter Type

38 SERVICE MANUAL FOR AMERICA

. System Frame Drawing

R everse Valve(Current in cooling condition )

Condenser of Outdoor Unit

Temperature of the Middle of Outdoor Coils

Temperature of Exhaust

Expansion Valve 1 Expansion Valve 2

Temperature of suction

M M

Compressor

Liquid Tank

T11 T12 T13

Evaporator 1 of Indoor Unit

Ambient Temperature of Indoor 1

Ambient Temperature of Outdoor T21 T22 T23

Evaporator 2 of Indoor Unit

Ambient Temperature of Indoor 2

Diagram 1

二.Major Performance Index a)

Voltage of Power Supply: AC220V ±15%; b)

Power of Controller: ≤15W; c)

Output of Three-phase Frequency Conversion:

Wire Voltage: 70V∽180V; Power: ≤5KW; Frequency: 10Hz∽120Hz; d) Precision of Temperature Control:±1℃; e) Applicable Environment:

Temperature:-20∽55℃,Relative Humidity: ≤90%RH (No dew); f) Conservation Environment:

Temperature:-25∽70℃,Relative Humidity: ≤95%RH (No dew); g) Executive Standard: GB/T7725-2004 & GB4706.32-2000.

三.Input & Output of Outdoor Controller

1. Outputs of one three-phase Frequency Conversion, two relays, one indicator led and one communication signal:

1) Controlling the three-phase output of compressor

2) Controlling the output of outdoor motor

3) Controlling the output of 4-way valve

4) Controlling the output of communication signals of indoor unit

5) Controlling the output of expansion valve

2. Inputs of five analogue inputs (the temperature measuring points distributing as Diagram 1, all the analogues go through digital filter for disposal), and two switch signals and two communication signals: a) Signal input of outdoor ambient temperature b) Signal input of median temperature of outdoor coil c) Signal input of discharge temperature of compressor d) Signal input of suction temperature of compressor e) Signal input of power supply voltage f) over-heat protection signal of compressor g) communication signal of indoor unit 1 h) communication signal of indoor unit 2 i) protection signal of outdoor IPM module

. Operation in Cooling Mode

39 SERVICE MANUAL FOR AMERICA

Control of Expansion Valve in Cooling Mode

1. Reset of Expansion Valve

In the first time ,the expansion valves in all channels shall be shut down 600 steps, then the expansion valve corresponding to the indoor unit in normal communications with the outdoor unit shall be opened to standby mode steps. If accomplished, the outdoor unit shall be on standby mode, until the turn-on the indoor unit.

2. Adjustment of Expansion Valve

1) Setting of Basic Step

After the confirmation of the turn-on order of cooling mode, the expansion valve of the relevant indoor unit shall be set to the basic step and the other to zero step.

2) Adjustment of Expansion Valve according to the difference in temperature between the inlet and outlet of evaporator

During the first ten minutes of cooling mode, the expansion valve of the indoor unit at the request of cooling shall be set to the basic step. Ten minutes later, the expansion valve step and its adjust cycle shall be adjusted according to the difference in temperature between the inlet and outlet of evaporator.

Control of compressor’s frequency:

1.Range of compressor’s frequency:Fmin~Fmax (Fmin:the lowest frequency, Fmax:the highest frequency)

2.Frequency decrease protection of compressor: frequency decrease protection is prior during frequency adjustment of compressor (Frequency decrease protection have: high temperature of compressor discharge, high temperature of outdoor coil pipe, high temperature of indoor coil pipe, low temperature of compressor suction, over current)

Control of fan motor in cooling mode:

1.The fan motor of outdoor unit is ahead run 20 seconds before compressor turn on.;

2.After compressor turn off, the fan motor of outdoor unit delay 30 seconds.

3. The fan motor speed of outdoor unit as below table in normal running, it has 20 seconds delay after speed change.

Speed table of outdoor fan motor

indoor unit capacity outdoor ambient

<2hp

2hp

3hp

T<66

O

F

66

O

F≤T<81

O

F low middle high

T≥81

O

F middle high high

compressor

40 SERVICE MANUAL FOR AMERICA

outdoor FM

20s 30s 30s figure 3

Operation in Dehumidify Mode

Dehumidify mode is same as cooling mode.

Operation in heating Mode

Adjustment of Expansion Valve:

1.Reset of Expansion Valve

In the first time,the expansion valves in two channels shall be shut down 600 steps, then the expansion valve corresponding to the indoor unit in normal communications with the outdoor unit shall be opened to standby mode steps. If accomplished, the outdoor unit shall be on standby mode, until the turn-on the indoor unit.

2.Adjustment of Expansion Valve

1) Setting of Basic Step

After the confirmation of the turn-on order in heating mode, the expansion valve of the relevant indoor unit shall be set to the basic step.

2) Adjustment of Expansion Valve according to the difference in temperature between the inlet and outlet of evaporator

During the first ten minutes of heating mode, the expansion valve of the indoor unit shall be set to the basic step and can’t adjust. Ten minutes later, the expansion valve step and its adjust cycle shall be adjusted according to the difference in temperature between the inlet and outlet of evaporator.

Control of compressor’s frequency

Range of compressor’s frequency:Fmin~Fmax (Fmin:the lowest frequency, Fmax:the highest frequency)

Control of fan motor in heating mode:(figure 5)

1. The fan motor of outdoor unit is ahead run 20 seconds before compressor turn on.

2. After compressor turn off, the fan motor of outdoor unit delay 30 seconds.

3. The fan motor speed of outdoor unit as below table in normal running, it has 20 seconds delay after speed change.

4. The control of outdoor fan motor as figure 6 during defrost process.

Speed table of outdoor fan motor

indoor unit capacity outdoor ambient

<2hp ≥2hp ≥3hp

T≥68

O

F low

54

O

F≤T<68

O

F low middle high

T<54

O

F middle high high

Control of reverse valve(figure 5)

1. The reverse valve is ahead run 20 seconds before compressor turn on.

2. After compressor turn off, the reverse valve delay 60 seconds shutdown.

3. The control of reverse valve as figure 6 during defrost process.

compressor

41 SERVICE MANUAL FOR AMERICA

outdoor FM

reverse valve

20s 30s 30s figure 5

七.Defrost of heating mode(figure 6)

1. Defrost start condition

If outdoor ambient is more than or equal to 61

O

F,it can’t defrost. When the time of defrost interval is end , outdoor coil pipe temp. and outdoor ambient temp. continuous meet all conditions for 5 minutes, it enter defrost process:

1) If outdoor ambient temp. less than or equal to 32

O

F,when T

≤0.8T

+a

O

F(a is a adjust constant), it enter defrost process.

2) If outdoor ambient temp. more than 32

O

F and less than or equal to 59

O

F,when T

≤ 0.2 T

+a

O

F, it enter defrost process.

3) If outdoor temp. sensor is failure, when outdoor coil temp. T

≤+a

O

F, it enter defrost process.

4) If coil temp. sensor of outdoor unit is failure, when defrost interval time is end, it enter defrost, the time of defrost is four minutes.

5) During the first ten minutes of outdoor running in heating mode, the time is clear and it judge whether outdoor coil pipe temp. and outdoor ambient temp. satisfy defrost condition, if the frequency of compressor is 25HZ and satisfy defrost condition, then if enter defrost process. After end defrost process or over 10 minutes it return normal running.

2. Defrost end condition

1) T

≥b

O

F(b is a adjust constant)or defrost time more than or equal to c minutes

(c is a adjust constant),it exit defrost process.

2) When outdoor coil pipe sensor is failure, defrost time is four minutes, it exit defrost process after four minutes.

3.

Interval time of defrost

1) Defrost interval time restriction: Max 120 minutes, Min 25 minutes.

2) The first frost interval time is 0 minute after heating.

3) The second defrost interval time is base on 60 minutes, it adjust according to below table.

4) Form second time, defrost interval time adjustment as below table.

Interval time(Td) change

Td <2 minutes Last interval time add 5 minutes

Same as last interval time 3 minutes≥Td≥2 minutes

≥4 minutes Last interval time reduce 5 minutes

4. Time sequence of defrost process(figure 6).

42 SERVICE MANUAL FOR AMERICA

八.Control of oil return circle

1. Oil return circle period

When air conditioner has run for 10 minutes or accumulate time T msro is end, it execute oil return circle once.

2. When compressor is running to oil return circle, the indoor unit which have communication is return oil, expand valve is open fully and compressor’s frequency increase more than 3/5 of max frequency for 90 seconds, the expand valve of indoor unit which no communication is close.

九. Operation mode control of outdoor unit(dehumidify、cooling or heating)

The indoor unit can require cooling mode and dehumidify mode together, but it can’t require cooling mode or dehumidify with heating mode together, the outdoor unit operate state is decided by the indoor unit which is applied first.

十.Protect function

1. Delay protection of compressor

The compressor can’t run after it stop within 3 minutes.

2. Fault protection of module

The air conditioner stop running immediately and display error code if the module is fault.

3. Protection of communicate fault

The control of outdoor unit can connect with all indoor units, when it power on, it sent data to each indoor unit continuously, if it receive a correct data from correspond indoor unit, then the indoor unit is exist. when the control of outdoor unit didn’t receive communication data from indoor unit which is exist within 30 seconds, it will display communication fault. If all communication channels are failure, air conditioner will shutdown and display fault code.

43 SERVICE MANUAL FOR AMERICA

4. Leakage or reverse valve fault

The air conditioner shutdown immediately when meet one of below conditions.

1)

Heating: coil pipe temp. of outdoor unit can’t decrease 3 degree within setting time and coil pipe temp. of indoor unit can’t increase 3 degree all along.

2) Cooling: coil pipe temp. of outdoor unit can’t increase 3 degree within setting time and coil pipe temp. of indoor unit can’t decrease 3 degree all along.

5. High temp. protection of compressor discharge

1) The protection don’t effect if the temp. sensor of compressor discharge fault.

2) The air conditioner stop running immediately and display error code when the temp. of compressor discharge more than Tsd.

3) The compressor decrease frequency until the temp. of compressor discharge less than 210

O

F if the temp. of compressor discharge more than 203

O

F. The compressor resume normal frequency when the temp. of compressor discharge less than 194

O

F.

6. Temperature switch protection of compressor

The air conditioner will shutdown immediately and display fault code if the temp. switch of compressor switch off.

7. High temp. protection of middle coil pipe of condenser

1) The protection don’t effect if the temp. sensor of middle coil pipe fault.

2)

The compressor decrease frequency until the temp. of middle coil pipe less than

136

O

F.if the temp. of middle coil pipe more than 134

O

F..

3)

It resume normal frequency when the temp. of middle coil pipe less than133 O

F..

8. High temp. protection of indoor coil pipe

1)

The compressor decrease frequency until the temp. of indoor coil pipe more than

(Tsce-2) if the temp. of indoor coil pipe less than (Tsce-2)in cooling mode.

The compressor decrease frequency until the temp. of indoor coil pipe less than

(Tsce+2) if the temp. of indoor coil pipe more than (Tsce+2) in heating mode.

2)

It resume normal frequency when the temp. of indoor coil pipe less than Tsce(cooling mode) or less than Tshe(heating mode).

9. Low temp. protection of compressor suction

1)

The protection don’t effect if the temp. sensor of compressor suction fault or compressor don’t run or in heating mode..

2)

The compressor decrease frequency until the temp. of compress suction more than

Tss if the temp. of compressor suction less than Tss. It resume normal frequency when the temp. of compressor suction more than (Tss+2).

10. Fault protection of outdoor sensor

The air conditioner is running at the frequency of less than (3/5)*Fmax and display fault code if the temp. sensor of compressor discharge fault, or the temp. sensor of outdoor middle coil pipe fault, or the temp. sensor of compressor suction fault, or the temp. sensor of outdoor ambient fault.

11. High temp. of ambient

1) The protection don’t effect if the temp. sensor of outdoor ambient fault.

2) The air conditioner stop running immediately and display error code if outdoor ambient temp. more than 131

O

F or less than -4

O

F.

12. Over current protection of compressor

44 SERVICE MANUAL FOR AMERICA

1)

The air conditioner stop running immediately and display error code when input current more than or equal to Imax.

2) The compressor decrease 2Hz per 3 seconds until input current less than or equal to (Imax-13) when the input current more than (Imax-13).

2)The compressor decrease 1Hz per 3 seconds until input current less than or equal to (Imax-16) when the input current more than (Imax-16).

3)

It resume normal frequency when the input current less than or equal to (Imax-20).

13.DC voltage of wire protection

1)

The air conditioner stop running and display DC voltage abnormal when it less than

260V.

2)The compressor decrease frequency and display FA6 when DC voltage less than 285V.

3) The air conditioner resume normal running when DC voltage more than 290V.

十一、Outdoor unit fault of indoor unit display fault display

Transducer module protection

Over current

P2

P3

P4

Discharge temperature of compressor overheat, ambient temperature overheat

DC voltage of outdoor unit abnormal

Leakage or reverse valve fault

Outdoor sensor fault

Compressor drive fault

P7

P8

F6

FC

45 SERVICE MANUAL FOR AMERICA

12. TROUBLESHOOTING

WARNING!!!

When Power Up – the whole outdoor unit controller, including the wiring, is under HIGH

VOLTAGE!!!

Never open the Outdoor unit before turning off the Power!!!

When turned off, the system is still charged (400V)!!!

It takes about 3 Min. to discharge the system.

Touching the controller before discharging may cause an electrical shock!!!

For safe handling of the controller please refer to section 1.6 below.

1.1 Air Conditioner Failures and Corrective Actions

F1:

1,Communicate wire cut off ,loose or wrong wiring---check wires

2,Communication interfere---check wires connection with circuit diagram.(earth line must be wired)。

F2:

1,Temp. sensor of indoor room short or cut off.---change sensor

F3:

1,Temp. sensor of indoor coil pipe outlet short or cut off.---change sensor.

2,Temp. sensor of indoor coil pipe entrance short or cut off.---change sensor.

3,Temp. sensor of indoor coil pipe middle short or cut off.---change sensor.

F4:

1,PG motor fault.---change motor. PG.

2,Fixed screw loose.---fix cross flow fan.

3,Communication interfere. (earth wire can’t with communicate wire in same cable)---check cable.

F6:

1,Temp. sensor of discharge short or cut off.---change sensor.

2,Temp. sensor of suction short or cut off.---change sensor.

3,Temp. sensor of condenser middle short or cut off.---change sensor.

P2:(auto-restart)

1,over current protection of inverter module.

2,over voltage protection of inverter module.

3,high temp. protection of inverter module.

P3:

1,over load (outdoor ambient temp. more high).

2,Voltage over low.

46 SERVICE MANUAL FOR AMERICA

P4:

1: discharge temp. too high.---maybe leak refrigerant, add refrigerant.

2:outdoor ambient temp. too high, if (T<-4

O

F,T>131

O

F), it will alarm.

3:temp. switch of compressor cut off.。

4:Communication interfere. (earth wire can’t with communicate wire in same cable)---check cable.

P7:

1,PFC board fault.---change PFC board.

2,Communication of main board and PFC board fault.---check wires of main board and PFC board.

P8:

1,Less refrigerant.---add refrigerant.

2,Coil pipe sensor can’t contact with coil pipe.

3,4-way valve fault.---change 4-way vavle fault.

47 SERVICE MANUAL FOR AMERICA

1 3 . E X P L O D E D V I E W S A N D S P A R E P A R T S L I S T S

13.1 outdoor unit : TAS-09EH/O

NO. description

1 前网罩

2 面 板

3 轴流风轮

4 电 机

5 电机支架

6 冷凝器

7 顶盖板

8 电控盒

9 背网

10 右侧板 name

Front Grill

Front Plate

Axial flow fan

Motor

Motor support

Condenser

Top panel

Electric box

Rear Grill

Right panel number NO.

description

1

1

1

1

1

1

1

1

1

1 name

11 电器盒盖

12 阀座板

13 低压阀

14 高压阀

Top of the Electric box

Valve installation plate

Low-pressure valve

Ligh-pressure valve

15 毛细管组件 Capillary Assy

16 电子膨胀阀 Electronic expansion valve

17 四通阀组件 Four-way valve assembly

18 压缩机 Compressor

19 中隔板

20 底盘

Partition board

Base number

1

1

1

1

1

1

1

1

1

1

48 SERVICE MANUAL FOR AMERICA

13.2 outdoor unit : TAS-12EH/O

NO. description name

1 顶盖板

2 电控盒

3 背网

4 中隔板

Top panel

Electric box

Rear Grill

Partition board

5 四通阀 Four-way valve

6 电子膨胀阀 Electronic expansion valve

7 干燥过滤器 Desiccation filter

8 右侧板 Right panel

9 大抽手

10 阀座板

11 低压阀

Large handle

Valve installation plate

Low-pressure valve number NO.

description

1

1

1

1

1

1

1

1

1

1

1

12 高压阀

13 压缩机

14 底盘

15 冷凝器

16 电机支架

17 电机

18 轴流风机

19 前网罩

20 前面板

21 左护网

22 左侧板 name

High-pressure valve

Compressor

Base

Condenser

Motor support

Motor

Axial flow fan

Front Grill

Front Plate

Left protect net

Left panel

49 SERVICE MANUAL FOR AMERICA number

1

1

1

1

1

1

1

1

1

1

1

13.3 outdoor unit : TAS-18EH/O

NO. NO.

description

1

2

3

前网罩

面 板

Front Grill

Front Plate

轴流风轮 Axial flow fan

4 电 机

5 左侧板

Motor

6 电机支架 Motor support

7 冷凝器

8 顶盖板

9 电器盒

10 背网

Left panel

Condenser

Top panel

Electric box

Rear Grill

1

1

1

1

1

1

1

1

1

1 name number

11

12

四通阀组

电子膨胀

13 右侧板

Four-way valve assembly

Electronic expansion valve

Right panel

14 电器盒盖 Top of the Electric Box

15 阀座板 Valve installation plate

16 低压阀 Low-pressure valve

1

1

1

1

1

1

17 高压阀

18 维修板

19 压缩机

20 中隔板

21 底盘

High-pressure valve

Maintenance plate

Compressor

Partition board

Base

1

1

1

1

1

50 SERVICE MANUAL FOR AMERICA

13.4 outdoor unit : TAS-24EH/O

NO. description name

1 顶盖板

2 减振块

3 中隔板

4 电控盒

5 四通阀

Top panel

Anti-vibration pad

Partition board

Electric box

Four-way valve

6 干燥过滤器 Desiccation filter 1

7 电子膨胀阀 Electronic expansion valve 1

8 右侧板 Right panel

9 电器盒盖 Top of the Electric box

1

1

10 阀座板

11 低压阀

12 高压阀

Valve installation plate

Low-pressure valve

High-pressure valve

1

1

1

1

1

1

1

1 number NO.

description name

13 维修板

14 小抽手

15 压缩机

16 底盘

17 冷凝器

Maintenance plate

Small handle

Compressor

Base

Condenser

18 电机支架 Motor support

19 电机 Motor

20 轴流风机 Axial flow fan

21 前网罩 Front Grill

22 前面板

23 左护网

24 左侧板

Front Plate

Left protect net

Left panel number

1

1

1

1

1

1

1

1

2

1

1

1

51 SERVICE MANUAL FOR AMERICA

13.5 outdoor unit : TAS-18MVH/O

NO. description

1 前网罩

2 面 板

3 轴流风轮

4 左侧板

5 电机支架

6 冷凝器

7 顶盖板

8 电器盒

9 背网

10 汽液分离器

11 四通阀组件 name

Front Grill

Front Plate

Axial flow fan

Left panel

Motor support

Condenser

Top panel

Electric box

Rear Grill

Steam liquid segregator

Four-way valve assembly

Electronic expansion valve

Right panel

12 电子膨胀阀

13 右侧板 number NO.

1

1

1

1

1

1

1

1

1

1 description name

14 电器盒盖

15 阀座板

Top of the Electric Box

Valve installation plate

16 A 机 DN4 截止阀 DN4 valve

17 A 机 DN10 截止阀 DN10 valve

18 B 机 DN4 截止阀 DN4 valve

19 B 机 DN10 截止阀 DN10 valve

20 维修板

21 干燥过滤器

22 压缩机

Maintenance plate

Desiccation filter

Compressor

23 中隔板 Partition board

1

2

1

24 底盘

25 电 机

Base

Motor

52 SERVICE MANUAL FOR AMERICA number

1

1

1

1

1

1

1

1

1

1

1

1

13.6 outdoor unit : TAS-24MVH/O

NO. description name

1 前网罩 Front Grill

2 面 板 Front Plate

3 轴流风轮 Axial flow fan

4 左护网 Left protect net

5 电机支架 Motor support

6 立 柱

7 顶盖板

8 冷凝器

Pillar

Top panel

Condenser

9 中隔板

10 电器盒

Partition board

Electric box

11 四通阀组件 Four-way valve assembly

12 电子膨胀阀 Electronic expansion valve

13 右侧板 Right panel number NO. description

1

1

1

1

1

1

1

1

1

1

1

2

1

14

15 阀座板

21

22

23

24

25

26

电器盒盖 name

16 A 机 DN4 截止阀 DN4 valve

17 A 机 DN10 截止阀 DN10 valve

18 B 机 DN4 截止阀 DN4 valve

19 B 机 DN10 截止阀 DN10 valve

20 维修板

小抽手

干燥过滤器

压缩机

油汽分离器

底盘

电 机

Top of the Electric Box

Valve installation plate

Maintenance plate

Small handle

Desiccation filter

Compressor

Oil and steam separator

Base

Motor number

1

1

1

1

2

1

1

1

1

1

1

1

1

53 SERVICE MANUAL FOR AMERICA

APPENDIX A

APPENDIX A

INSTALLATION AND OPERATION MANUAL

I N S T A L L A T I O N M A N U A L C M V

54 SERVICE MANUAL FOR AMERICA

F o r e w o r d

This instruction Manual is the universal-purpose version for the models of separate wall-mounted air conditioners manufactured by our Co. The appearance of the units that you purchase might be slightly d i f f e r e n t from the ones described in the Manual, but it does not affect your proper operations and usage.

Please read carefully the sections corresponding to the specific model you choose, and keep the

Manual properly so as to facilitate your reference at later time.

I M P O R T A N T !

P l e a s e R e a d B e f o r e S t a r t i n g

This air conditioning system meets strict safety and operating standards.

As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.

For safe installation and trouble-free operation, you must:

 Carefully read this instruction booklet before beginning.

Follow each installation or repair step exactly as shown.

Observe all local, state, and national electrical codes.

 Pay close attention to all danger, warning, and caution notices given in this manual. WARNING:

This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death.

CAUTION: This symbol refers to a hazard or unsafe practice which can result in personal injury and the potential for product or property damage.

CONTENTS

LOCATION OF OUTDOOR UNIT

ELECTRICAL CONNECTION BETWEEN INDOOR AND OUTDOOR UNIT

INSTALLATION/SERVICE TOOLS (ONLY FOR R410A PRODUCT)

REFRIGERANT TUBING

FINAL TASKS

NOTE: This manual is for Multi split applications only.

For indoor units installation please refer to the installation manual supplied

1

3

7

9

11

55 SERVICE MANUAL FOR AMERICA

within the indoor unit packa

1 LOCATION OF OUTDOOR UNIT

Select the location considering the following:

O U T D O O R U N I T

1 .The location must allow easy servicing and provide good air circulation as shown in fig2. 2.The unit may be suspended from a wall by a bracked(Optional)or located in a free standing position on the floor(preferably slightly elevated).

3.If the unit is suspended , ensure that the bracket is firmly connected and the wall is strong enough to withstand vibrations.

4.Unit location should not disturb neighbours with noise or exhaust air stream.

5.Place the mounting pads under the unit legs.

6.Refer to figure 2 for allowed installation distances.

Fig 2

Fig 1 Fig 2

56 SERVICE MANUAL FOR AMERICA

2 ELECTRICAL CONNECTION BETWEEN

OUTDOOR AND INDOOR UNIT

ELECTRICAL REQUIREMENTS

Electrical wiring and connections should be made by qualified electricians and in accordance with local electrical codes and regulation.The air conditioner units must be grounded. The air conditioner units must be connected to an adequate power outlet from a separate branch circuit protected by a time delay circuit breaker,as specified on unit's nameplate. Voltage should not vary beyond ± 10% of the rated voltage.

1 .Remove the power supply cable that is connected to the indoor unit!

2.To connect the indoor units to the outdoor units,use the following electrical cables.

Electrical connections:

Power input cable: 1 group 3 wiresX2.5mm

2

cable between indoor and outdoor units: 1 group 4 wiresX 1.0mm

2 see Fig 6.7.8.9.10 for detail .

3.Prepare the cable ends for the power input and for the cables between outdoor and indoor units as shown in figure 3a and 3b respectively.

4.Connect the cable ends to the terminals of the indoor and outdoor units , as show in fig4, figs.

Please select corresponding connection according to the different indoor units. 5.Secure the multiple wire power cable with the cable clamps.

•Power input cable

57 SERVICE MANUAL FOR AMERICA

3 INSTALLATION/SERVICE TOOLS

(ONLY FOR R410A PRODUCT)

C A U T I O N

New Refrigerant

Air Conditioner Installation

This air conditioner adopts the new HFC refrigerant (R410A) which does not destroy ozone layer.

R410A refrigerant is approx . 1.6 times of refigerant R22. Accompanied with the adoption of the new refrigerant , the refrigeration machine oil has also been changed.

Therefore,during installation work, be sure that water , dust , former refrigerant , or refrigeration machine oil does not enter into the new type refrigerant R410A air conditioner circuit.The system must not be left open to the atmosphere for any reason for any period of time as the systems oil quickly absorbs moisture and will contaminate and damage the system.

A refrigerant liquid line drier is recommended.

To prevent mixing of refrigerant or refrigerating machine oil ,the sizes of conneting sections of charging port on main unit and installation tools are different from those used for the conventional refrigerant units. Accordingly,special tools are required for the new refrigerant (R410A) units, For connecting pipes use new and clean piping materials with high pressure fitting made for R410A only, so that water and/or dust does not enter.Moreover, do not use the existing piping because there are some problems w i t h presure f i t t i n g s and possible i m p ur i t ie s in exi stin g piping .

Changes in the product and components

In air conditioners using R410A ,in order to prevent any other refrigerant from being accedentally charged .the service port diameter size of the outdoor unit control valve (3 way valve) has been changed. (1/2 UFN 20 threads per inch)

• In order to increase the pressure resisting strength of the refrigerant piping ,flare processing diameter and opposing flare nuts sizes have been changed.( fot copper pipes with nomensions 1/2 and 5/8)

New tools for R410A

Nes tools for R410A Applicable to R22 model

Gauge manifold

Charge hose x x

Chages

As the working pressure is high ,it is impossible to measure the working pressure using conventional gauges . In order to prevent any other refrigerant from being charged , the port diameters have been changed.

In order to increase pessure resisting strength.

hose materials and port sizes have been changed( to 1 /2 UNF 20 threads per inch).

When puchasing a charge hose,be sure to confirm the port size.

Electronic balance for refrigerant charging

Torque wrench

(nominal dia.1/2,5/8) x

As working pressure is. high and gasification speed is fat ,it is difficult to read the indicated value by means of charging cylinder ,as air bubbles occur.

The size of opposing flare nuts have been increased ,incidentally,a common wrench is used for nominal diameters 1/4 and 3/8.

58 SERVICE MANUAL FOR AMERICA

Flare tool

(clutch type)

Gauge for projection adjustment

0

_

Vacuum pump adapter 0

By incressing the clamp bar'receiving hole size , strength of spring in the tool has been improved.

Used when flare is made by using conventional flare tool.

Connected to conventional vacuum pump,it is necessary to use an adapter to prevent vacuum pump oil from flowing back into the charge hose ,

The charge hose connecting part has two ports-one for conventional refrigerant (7/16

UNF 20 theads per inch )and one for R41 OA ,if

Gas leakage detector x Exclusive for HFC refrigerant

•Incidentally,the "refrigerant cylinder"comes w i t h the refrigerant designation(R410A)and protector coating in the U.S's ARI specified rose color (Ari color code; PMS 507).

•Also the "charge port and packing for refrigerant cylinder"requires 1/2 UNF 20 theads per inch corresponding to the charge pOse's port size.

59 SERVICE MANUAL FOR AMERICA

4 REFRIGERANT TUBING

CONNECT THE INDOOR TO THE OUTDOOR UNIT

The indoor unit contains a small quantity of nitrogen.Do not unscrew the nuts from the unit until you are ready to connect the tubing.The outdoor unit is supplied with suffcient refrigerant charge(R410A). Refer to outdoor unit nameplate.

To prevent crushing,bend tubes using a bending tool.

NOTE:Use refrigeration R410Atype copper tubing only.

1.Open the valve cover.

2.Use tubing diameter that corresponds to the tubing diameter of the indoor and outdoor units. Note that the liquid and suction tubes have different diameters.(See tube size,torque tightening table.)

3.Place flares nuts on tube ends before preparing them with a flaring tool.Use the flare nuts that are mounted on the supplied outdoor and indoor units.

4.Connect the all ends of the tubing to the indoor and outdoor units.Notice the sign . All ends should correspond one by one.

5.Insulate each tube separately,and their unions,with at least 6mm thick of insulation .Wrap the refrigerant tubing,drain hose and electric cables together with a vinyl tape (UV protected)

Fig 11

1.INDOOR UNIT

2.Liquid tube(small dia.)

3.Suction tube(large dia.)

4. Plugs

5.Flare nuts

6.Tubing between units

7.Suction tube

8.Liquid tube

9.OUTDOOR UNIT

10.FIare nuts

11 .Suction valve(larger) 12.Liquid valve(smal)

NOTE:1.For unit use connectionsA,B and D

2.For large indoor unit of 5.0KW Use the lower connection(unit D) and use the

3/8"-1/2"transition( supplied)

3.The electric control channel must match the tube channel.

Caution!

When unscrewing the valve caps, do not stand in front of them or the spindles at any time,as the system is under pressure.

60 SERVICE MANUAL FOR AMERICA

Tightening torques of unions and valve caops:

TUBE SIZE

Liquid line 1/4"

Suction line 3/8"

Suction line 1/2"

Suction line 5/8"

TORQUE

1 5 - 2 0 N.M.

3 0 - 3 5 N.M.

5 0 - 5 4 N.M.

7 5 - 7 8 N.M.

Fig 13

To prevent refrigerant

leakage,coat

the flared surface with

refrigeration

oil

Fig 14 1.Suction

valve 2.Service port

3.Liquid val ve

EVACUATION OF THE REFRIGERATION TUBES AND THE INDOOR UNIT

After connecting the unions of the indoor and outdoor units,evacuate the air from the tubes and indoor unit as follows:

1.Connect the charging hoses with a push pin to the low and high sides of the charging set and the service ports of the suction and liquid valves.

Be sure to connect the end of the charging hose with the push pin to the service ports.

2.Connect the center hose of the charging set to a vacuum pump.

3.Open Fully the low and high pressure sides of the manifold gauge valves.

4.Turn on the vacuum pump.Perform evacuating for at least 30 minutes and than confirm that the needle in the gauge moves from 0 MPa(Ocm Hg) t 0 - 0 . 1 MPa(-76cm Hg).

5.Close the valves of the low and high sides of the charging set and turn off the vacuum pump. After few mi n ut e s,if the gauge needle has moved,there is a leak which must be found and repaired before moving to the next stage.

6.Disconnect the charging hose from the vacuum pump and from the service ports of the suction and liquid valves.

7.Tighten the service port caps of suction and liquid valves.

8.Remove the valve caps from all valves,and open them using a hexagonal Allen wrench,

9.Securely tighten the caps onto all of the valves.

10.Check for gas leaks from all the connecting position.Test wit h electronic leak detector or with a sponge immersed in soapy water for bubbles.

61 SERVICE MANUAL FOR AMERICA

1 .Charging set

2.Vacuum pump

3.OUTDOOR UNIT

4.Service valve

5.Cap

6.Suction valve

7.Service valve

8.Cap

9.Liquid valve

10.INDOOR UNIT

1 1.Suction flare connection

12.Liquid flare connection

5 FINAL TASKS

1 .Check all valve caps and ensure that they had tightened properly.Close the valve cover.

2.Fill gaps on the wall between hole sides and tubing with sealer.

3.Attach wiring and tubing to the wall with clamps where necessary.

4.Operate the unit for no less than 5 minutes at heating or cooling mode.

5.Explain filter removal,cleaning and installation.

6.Operate the air conditioner together with the customer and explain all functions.

7.Give the operating and installation manuals to the customer

62 SERVICE MANUAL FOR AMERICA

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