Toshiba RAS-M13UKCV-E, RAS-3M26YAV-E, RAS-M13UKV-E, RAS-M16UKV-E, RAS-M10UKV-E DATA BOOK

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SERVICE MANUAL

AIR-CONDITIONER

RAS-M10UKV-E, RAS-M13UKV-E, RAS-M16UKV-E

FILE NO.SVM-03017

SUPPLEMENT

SPLIT TYPE

RAS-4M27YAV-E

RAS-M10UKCV-E, RAS-M13UKCV-E, RAS-M16UKCV-E

RAS-4M27YACV-E

RAS-M10UKV-E, RAS-M13UKV-E, RAS-M16UKV-E

RAS-3M26YAV-E

R410A

June, 2003

CONTENTS

1. SPECIFICATIONS....................................................................................... 3

2. REFRIGERANT R410A ............................................................................ 26

3. CONSTRUCTION VIEWS ......................................................................... 34

4. WIRING DIAGRAM ................................................................................... 36

5. SPECIFICATIONS OF ELECTRICAL PARTS .......................................... 38

6. REFRIGERANT CYCLE DIAGRAM ......................................................... 40

7. CONTROL BLOCK DIAGRAM ................................................................. 48

8. OPERATION DESCRIPTION .................................................................... 50

9. INSTALLATION PROCEDURE ................................................................. 64

10. HOW TO DIAGNOSE THE TROUBLE ....................................................... 79

11. HOW TO REPLACE THE MAIN PARTS................................................... 100

12. EXPLODED VIEWS AND PARTS LIST .................................................. 110

– 2 –

1. SPECIFICATIONS

(kW)

(A)

(W)

(%)

(A)

(W)

(%)

(A)

)

(mm)

(W)

(

)

(mm)

(kg)

(W)

(

)

(m)

(kg)

(°C)

1-1. Specifications

RAS-M10UKV-E, RAS-M13UKV-E, RAS-M16UKV-E/RAS-4M27YAV-E, RAS-3M26YAV-E

Unit model Cooling capacity

Cooling capacity range Heating capacity Heating capacity range Power supply 220/230/240V, 1Ph, 50/60Hz Electric

characteristics

C.O.P. (Cooling/He ating) 3.20/4.00 3.33/3.53 Operating

noise

Indoor unit

Outdoor unit

Piping connection

Accessory

• For performance when each indoor unit is combined with other unit, refer to the separate table.

• The specifications may be subject to change without notice for purpose of improvement.

Indoor Outdoor

Indoor

Total

Indoor

(Cooling/Heating)

Outdoor

(Cooling/Heating)

Unit model Dimension

Net weight (kg) 10 10 10 Fan motor output Air flow rate Unit model Dimension

Net weight Compressor

Fan motor output Air flow rate Type Flare connection Indoor unit

Outdoor unit

Maximum length (per unit) Maximum length (total) Maximum chargeless length Maximum height difference Name of refrigerant R410ARefrigerant Weight

Indoor unit

Outdoor unit

Unit model Running current Power consumption Power factor Operation mode Running current Power consumption Power factor Starting current

Unit model High dB (A Medium dB (A Low dB (A Unit model Full indoor units operating dB (A

Height (mm Width Depth

(Cooling/Heating)

Height Width Depth

Motor output Type Twin rotary type with DC-inverter variable speed control Model DA220A2F-20L

Unit model Liquid side Ø6.35 Ø6.35 Ø6.35 Gas side Ø9.52 Ø9.52 Ø12.7 Unit model A unit liquid side/gas side Ø6.35/Ø12.7 Ø6.35/Ø12.7 B unit liquid side/gas side Ø6.35/Ø9.52 Ø6.35/Ø9.52 C unit liquid side/gas side Ø6.35/Ø9.52 Ø6.35/Ø9.52 D unit liquid side/gas side Ø6.35/Ø9.52 —

Power supply 3 wires : includes earthWiring connection Interconnection 4 wires : i ncludes earth Indoor Outdoor Installation plate 1 Wireless remote controller 1 Label 2 Remote controller holder 1 Pan head wood screw 2 (Ø3.1 x 16L) Purifying filter 1 Deodorizing filter 1 Battery 2 Mounting screw 6 (Ø4 x 25L) Installation manual 1 Installation manual 1 Owner's manual 1

11.60/11.09/10.63 10.44/9.98/9.57 10.44/9.98/9.57 1 1.83/11.31/10.84

m³/h

RAS-M10UKV-E, RAS-M13UKV-E, RAS-M16UKV-E

RAS-4M27YAV-E RAS-3M26YAV-E

8.0 7.5

1.4 – 9.2 1.4 – 8.9

9.0 9.0

0.8 – 11.0 0.8 – 10.8

RAS-M10UKV-E RAS-M13UKV-E RAS-M16UKV-E

0.15 0.15 0.15 30 30 30

91/87/83 91/87/83 91/87/83

Cooling Heating Cooling Heating

2500 2250 2250 2550

98 98 98 98

11.60/11.09/10.63 11.83/11.31/10.84

RAS-M10UKV-E RAS-M13UKV-E RAS-M16UKV-E

36/39 39/40 42/42 33/35 35/35 39/39 28/29 28/29 33/33

RAS-4M27YAV-E RAS-3M26YAV-E

48/48 48/48

RAS-M10UKV-E RAS-M13UKV-E RAS-M16UKV-E

275 275 275 790 790 790 208 208 208

19 19 19

470/520 520/560 600/600

RAS-4M27YAV-E RAS-3M26YAV-E

795 795 900 900 320 320 65 64

2000

High : 3000, Medium : 2800

RAS-M10UKV-E RAS-M13UKV-E RAS-M16UKV-E

RAS-4M27YAV-E RAS-3M26YAV-E

25 25 70 50 70 50 15 15

2.4

21 – 32/0 – 28Usable temperature range

10 – 43/–10– 21

– 3 –

RAS-M10UKCV-E, RAS-M13UKCV-E, RAS-M16UKCV-E/RAS-4M27YACV-E

Unit model

Cooling capacity (kW) 8.0 Cooling capacity range (kW) 1.4 – 9.2 Power supply 220/230/240V, 1Ph, 50/60Hz Electric

characteristics

C.O.P. 3.20 Operating

noise

Indoor unit

Outdoor unit

Piping connection

Accessory

• For performance when each indoor unit is combined with other unit, refer to the separate table.

• The specifications may be subject to change without notice for purpose of improvement.

Indoor Outdoor

Indoor

Total

Indoor

Outdoor

Unit model Dimension

Net weight (kg) 10 10 10 Fan motor output (W) 19 19 19 Air flow rate (m³/h) 470 520 600 Unit model Dimension

Net weight (kg) 63 Compressor

Fan motor output ( W) 60 Air flow rate (m³/h) High : 3000, Medium : 2800 Type Flare connection Indoor unit

Outdoor unit

Maximum length (per unit) (m) 25 Maximum length (total) (m) 70 Maximum chargeless length (m) 70 Maximum height difference (m) 15 Name of refrigerant R410ARefrigerant Weight (kg) 2.2

Indoor unit

Outdoor unit

Unit model Running current (A) 0.15 0.15 0.15 Power consumption (W) 30 30 30 Power factor (%) 91/87/83 91/87/83 91/87/83 Running current (A) 11.60/11.09/10.63 Power consumption (W) 2500 Power factor (%) 98 Starting current (A) 11.60/11.09/10.63

Unit model High dB (A) 36 39 42 Medium dB (A) 33 35 39 L ow B (A)282833 Unit model 4 indoor units operating dB (A) 48

Height (mm) 275 275 275 Width (mm) 790 790 790 Depth (mm) 208 208 208

Height (mm) 795 Width (mm) 900 Depth (mm) 320

Motor output (W) 2000 Type Twin rotary type with DC-inverter variable spee d co ntr ol Model DA220A2F-20L

Unit model Liquid side Ø6.35 Ø6.35 Ø6.35 Gas side Ø9.52 Ø9.52 Ø12.7 Unit model A unit liquid side/gas side Ø6.35/Ø12.7 B unit liquid side/gas side Ø6.35/Ø9.52 C unit liquid side/gas side Ø6.35/Ø9.52 D unit liquid side/gas side Ø6.35/Ø9.52

Power supply 3 wires : includes earthWiring connection Interconnection 4 wires : includes earth Indoor (°C) 21 – 32Usable temperature range Outdoor (°C) 10 – 43 Installation plate 1 Wireless remote controller 1 Label 2 Remote controller holder 1 Pan head wood screw 2 (Ø3.1 x 16L) Purifying filter 1 Deodorizing filter 1 Battery 2 Mounting screw 6 (Ø4 x 25L) Installation manual 1 Installation manual 1 Owner's manual 1

RAS-M10UKCV-E, RAS-M13UKCV-E, RAS-M16UKCV-E

RAS-4M27YACV-E

RAS-M10UKCV-E RAS-M13UKCV-E RAS-M16UKCV-E

RAS-4M27YACV-E

RAS-M10UKCV-E RAS-M13UKCV-E RAS-M16UKCV-E

RAS-4M27YACV-E

RAS-M10UKCV-E RAS-M13UKCV-E RAS-M16UKCV-E

RAS-4M27YACV-E

– 4 –

1-2. Specifications of Performance When Each Indoor Unit is Combined with other Unit

pply

Outdoor Unit : RAS-4M27YAV-E

Power

(V)

220 1 unit 10 –––2.7 –––

eratin

status

2 units 10 10 ––2.70 2.70 ––

3 units 10 10 10 – 2.53 2.53 2.53 –

4 units 10 10 10 10 1.98 1. 98 1.98 1.98

Indoor unit Unit capacity (kW)

ABCD A B C D

13 –––3.7 –––

16 –––4.5 –––

13 10 ––3.41 2.49 ––

16 10 ––3.94 2.36 ––

13 13 ––3.15 3.15 ––

16 13 ––3.73 3.07 ––

16 16 ––3.60 3.60 ––

13 10 10 – 3.13 2.28 2.28 –

16 10 10 – 3.50 2.10 2.10 –

13 13 10 – 2.82 2.82 2.06 –

16 13 10 – 3.22 2.65 1.93 –

13 13 13 – 2.60 2.60 2.60 –

16 16 10 – 3.04 3.04 1.82 –

16 13 13 – 2.99 2.46 2.46 –

16 16 13 – 2.80 2.80 2.30 –

16 16 16 – 2.67 2.67 2.67 –

13 10 10 10 2.48 1.81 1.81 1.81

16 10 10 10 2.86 1.71 1.71 1.71

13 13 10 10 2.31 2.31 1.69 1.69

16 13 10 10 2.65 2.18 1.59 1.59

13 13 13 10 2.14 2.14 2.14 1.57

16 13 13 10 2.47 2.03 2.03 1.48

13 13 13 13 2.00 2.00 2.00 2.00

16 16 10 10 2.50 2.50 1.50 1.50

Cooling

capacity

(kW)

2.7

(1.4 to 3.2)

3.7

(1.4 to 4.4)

4.5

(1.4 to 5.0)

5.4

(2.5 to 6.3)

5.9

(2.7 to 6.6)

6.3

(2.9 to 6.9)

6.3

(2.9 to 6.9)

6.8

(3.0 to 7.2)

7.2

(3.2 to 7.5)

7.6

(3.8 to 8.2)

7.7

(3.9 to 8.3)

7.7

(4.0 to 8.5)

7.7

(4.0 to 8.5)

7.8

(4.1 to 8.6)

7.8

(4.1 to 8.6)

7.9

(4.1 to 8.7)

7.9

(4.1 to 8.7)

7.9

(4.2 to 8.9)

8.0

(4.3 to 9.0)

7.9

(4.0 to 8.7)

7.9

(4.1 to 8.8)

8.0

(4.1 to 9.0)

8.0

(4.1 to 9.0)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

Power

consum

(640 to 1520)

(640 to 2000)

(640 to 2040)

(660 to 2220)

(670 to 2400)

(690 to 2570)

(700 to 2750)

(950 to 2720)

(960 to 2740)

(960 to 2790)

(970 to 2810)

(970 to 2830)

(970 to 2880)

(980 to 2900)

(930 to 2800)

(940 to 2820)

(940 to 2860)

(950 to 2880)

(950 to 2900)

tion

(W)

750

(640 to 950)

1200

1650

1530

1810

2040

2320

2550

2400

2410

2430

2440

2450

2500

Operating

current

(A)

3.87

(3.68 to 4.64)

5.74

(3.68 to 7.20)

7.81

(3.68 to 9.28)

7.10

(3.64 to 9.46)

8.40

(3.75 to 10.30)

9.46

(3.81 to 11.13)

9.46

(3.81 to 11.13)

10.76

(3.92 to 11.92)

11.83

(3.98 to 12.76)

11.13

(4.80 to 12.62)

11.18

(4.85 to 12.71)

11.18

(4.85 to 12.94)

11.18

(4.85 to 12.94)

11.27

(4.90 to 13.03)

11.27

(4.90 to 13.03)

11.32

(4.90 to 13.13)

11.32

(4.90 to 13.13)

11.32

(4.90 to 13.36)

11.36

(4.95 to 13.45)

11.36

(4.70 to 12.99)

11.36

(4.75 to 13.08)

11.60

(4.75 to 13.27)

11.60

(4.75 to 13.27)

11.60

(4.80 to 13.36)

11.60

(4.80 to 13.36)

11.60

(4.80 to 13.45)

11.60

(4.80 to 13.45)

11.60

(4.80 to 13.45)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 5 –

Outdoor Unit : RAS-4M27YAV-E

suppl

(V)

230 1 unit 10 –––2.7 –––

eratin

status

2 units 10 10 ––2.70 2.70 ––

3 units 10 10 10 – 2.53 2.53 2.53 –

4 units 10 10 10 10 1.98 1. 98 1.98 1.98

Indoor unit Unit capacity (kW)Power

ABCD A B C D

13 –––3.7 –––

16 –––4.5 –––

13 10 ––3.41 2.49 ––

16 10 ––3.94 2.36 ––

13 13 ––3.15 3.15 ––

16 13 ––3.73 3.07 ––

16 16 ––3.60 3.60 ––

13 10 10 – 3.13 2.28 2.28 –

16 10 10 – 3.50 2.10 2.10 –

13 13 10 – 2.82 2.82 2.06 –

16 13 10 – 3.22 2.65 1.93 –

13 13 13 – 2.60 2.60 2.60 –

16 16 10 – 3.04 3.04 1.82 –

16 13 13 – 2.99 2.46 2.46 –

16 16 13 – 2.80 2.80 2.30 –

16 16 16 – 2.67 2.67 2.67 –

13 10 10 10 2.48 1.81 1.81 1.81

16 10 10 10 2.86 1.71 1.71 1.71

13 13 10 10 2.31 2.31 1.69 1.69

16 13 10 10 2.65 2.18 1.59 1.59

13 13 13 10 2.14 2.14 2.14 1.57

16 13 13 10 2.47 2.03 2.03 1.48

13 13 13 13 2.00 2.00 2.00 2.00

16 16 10 10 2.50 2.50 1.50 1.50

Cooling

capacity

(kW)

2.7

(1.4 to 3.2)

3.7

(1.4 to 4.4)

4.5

(1.4 to 5.0)

5.4

(2.5 to 6.3)

5.9

(2.7 to 6.6)

6.3

(2.9 to 6.9)

6.3

(2.9 to 6.9)

6.8

(3.0 to 7.2)

7.2

(3.2 to 7.5)

7.6

(3.8 to 8.2)

7.7

(3.9 to 8.3)

7.7

(4.0 to 8.5)

7.7

(4.0 to 8.5)

7.8

(4.1 to 8.6)

7.8

(4.1 to 8.6)

7.9

(4.1 to 8.7)

7.9

(4.1 to 8.7)

7.9

(4.2 to 8.9)

8.0

(4.3 to 9.0)

7.9

(4.0 to 8.7)

7.9

(4.1 to 8.8)

8.0

(4.1 to 9.0)

8.0

(4.1 to 9.0)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

Power

consum

(640 to 1520)

(640 to 2000)

(640 to 2040)

(660 to 2220)

(670 to 2400)

(690 to 2570)

(700 to 2750)

(950 to 2720)

(960 to 2740)

(960 to 2790)

(970 to 2810)

(970 to 2830)

(970 to 2880)

(980 to 2900)

(930 to 2800)

(940 to 2820)

(940 to 2860)

(950 to 2880)

(950 to 2900)

tion

(W)

750

(640 to 950)

1200

1650

1530

1810

2040

2320

2550

2400

2410

2430

2440

2450

2500

Operating

current

(A)

3.71

(3.52 to 4.44)

5.49

(3.52 to 6.88)

7.47

(3.52 to 8.87)

6.79

(3.48 to 9.05)

8.03

(3.59 to 9.85)

9.05

(3.64 to 10.65)

9.05

(3.64 to 10.65)

10.29

(3.75 to 11.40)

11.31

(3.80 to 12.20)

10.65

(4.59 to 12.07)

10.69

(4.64 to 12.16)

10.69

(4.64 to 12.38)

10.69

(4.64 to 12.38)

10.78

(4.69 to 12.47)

10.78

(4.69 to 12.47)

10.83

(4.69 to 12.56)

10.83

(4.69 to 12.56)

10.83

(4.69 to 12.78)

10.87

(4.73 to 12.87)

10.87

(4.49 to 12.42)

10.87

(4.54 to 12.51)

11.09

(4.54 to 12.69)

11.09

(4.54 to 12.69)

11.09

(4.59 to 12.78)

11.09

(4.59 to 12.78)

11.09

(4.59 to 12.87)

11.09

(4.59 to 12.87)

11.09

(4.59 to 12.87)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 6 –

Outdoor Unit : RAS-4M27YAV-E

suppl

(V)

240 1 unit 10 –––2.7 –––

eratin

status

2 units 10 10 ––2.70 2.70 ––

3 units 10 10 10 – 2.53 2.53 2.53 –

4 units 10 10 10 10 1.98 1. 98 1.98 1.98

Indoor unit Unit capacity (kW)Power

ABCD A B C D

13 –––3.7 –––

16 –––4.5 –––

13 10 ––3.41 2.49 ––

16 10 ––3.94 2.36 ––

13 13 ––3.15 3.15 ––

16 13 ––3.73 3.07 ––

16 16 ––3.60 3.60 ––

13 10 10 – 3.13 2.28 2.28 –

16 10 10 – 3.50 2.10 2.10 –

13 13 10 – 2.82 2.82 2.06 –

16 13 10 – 3.22 2.65 1.93 –

13 13 13 – 2.60 2.60 2.60 –

16 16 10 – 3.04 3.04 1.82 –

16 13 13 – 2.99 2.46 2.46 –

16 16 13 – 2.80 2.80 2.30 –

16 16 16 – 2.67 2.67 2.67 –

13 10 10 10 2.48 1.81 1.81 1.81

16 10 10 10 2.86 1.71 1.71 1.71

13 13 10 10 2.31 2.31 1.69 1.69

16 13 10 10 2.65 2.18 1.59 1.59

13 13 13 10 2.14 2.14 2.14 1.57

16 13 13 10 2.47 2.03 2.03 1.48

13 13 13 13 2.00 2.00 2.00 2.00

16 16 10 10 2.50 2.50 1.50 1.50

Cooling

capacity

(kW)

2.7

(1.4 to 3.2)

3.7

(1.4 to 4.4)

4.5

(1.4 to 5.0)

5.4

(2.5 to 6.3)

5.9

(2.7 to 6.6)

6.3

(2.9 to 6.9)

6.3

(2.9 to 6.9)

6.8

(3.0 to 7.2)

7.2

(3.2 to 7.5)

7.6

(3.8 to 8.2)

7.7

(3.9 to 8.3)

7.7

(4.0 to 8.5)

7.7

(4.0 to 8.5)

7.8

(4.1 to 8.6)

7.8

(4.1 to 8.6)

7.9

(4.1 to 8.7)

7.9

(4.1 to 8.7)

7.9

(4.2 to 8.9)

8.0

(4.3 to 9.0)

7.9

(4.0 to 8.7)

7.9

(4.1 to 8.8)

8.0

(4.1 to 9.0)

8.0

(4.1 to 9.0)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

Power

consum

(640 to 1520)

(640 to 2000)

(640 to 2040)

(660 to 2220)

(670 to 2400)

(690 to 2570)

(700 to 2750)

(950 to 2720)

(960 to 2740)

(960 to 2790)

(970 to 2810)

(970 to 2830)

(970 to 2880)

(980 to 2900)

(930 to 2800)

(940 to 2820)

(940 to 2860)

(950 to 2880)

(950 to 2900)

tion

(W)

750

(640 to 950)

1200

1650

1530

1810

2040

2320

2550

2400

2410

2430

2440

2450

2500

Operating

current

(A)

3.55

(3.38 to 4.26)

5.26

(3.38 to 6.60)

7.16

(3.38 to 8.50)

6.51

(3.33 to 8.67)

7.70

(3.44 to 9.44)

8.67

(3.49 to 10.20)

8.67

(3.49 to 10.20)

9.86

(3.59 to 10.93)

10.84

(3.65 to 11.69)

10.20

(4.40 to 11.56)

10.25

(4.44 to 11.65)

10.25

(4.44 to 11.86)

10.25

(4.44 to 11.86)

10.33

(4.49 to 11.95)

10.33

(4.49 to 11.95)

10.37

(4.49 to 12.03)

10.37

(4.49 to 12.03)

10.37

(4.49 to 12.24)

10.42

(4.54 to 12.33)

10.42

(4.31 to 11.90)

10.42

(4.35 to 11.99)

10.63

(4.35 to 12.16)

10.63

(4.35 to 12.16)

10.63

(4.40 to 12.24)

10.63

(4.40 to 12.24)

10.63

(4.40 to 12.33)

10.63

(4.40 to 12.33)

10.63

(4.40 to 12.33)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 7 –

Outdoor Unit : RAS-4M27YAV-E

suppl

(V)

220 1 unit 10 –––4.0 –––

eratin

status

2 units 10 10 ––3.60 3.60 ––

3 units 10 10 10 – 2.87 2.87 2.87 –

4 units 10 10 10 10 2.23 2.23 2.23 2.23

Indoor unit Unit capacity (kW)Power

ABCD A B C D

13 –––5.0 –––

16 –––5.5 –––

13 10 ––4.22 3.38 ––

16 10 ––4.57 3.33 ––

13 13 ––3.95 3.95 ––

16 13 ––4.35 3.95 ––

16 16 ––4.30 4.30 ––

13 10 10 – 3.35 2.68 2.68 –

16 10 10 – 3.54 2.58 2.58 –

13 13 10 – 3.11 3.11 2.49 –

16 13 10 – 3.34 3.03 2.43 –

13 13 13 – 2.93 2.93 2.93 –

16 16 10 – 3.26 3.26 2.37 –

16 13 13 – 3.16 2.87 2.87 –

16 16 13 – 3.06 3.06 2.78 –

16 16 16 – 3.00 3.00 3.00 –

13 10 10 10 2.62 2.09 2.09 2.09

16 10 10 10 2.83 2.06 2.06 2.06

13 13 10 10 2.50 2.50 2.00 2.00

16 13 10 10 2.68 2.43 1.95 1.95

13 13 13 10 2.37 2.37 2.37 1.89

16 13 13 10 2.54 2.31 2.31 1.85

13 13 13 13 2.25 2.25 2.25 2.25

16 16 10 10 2.61 2.61 1.89 1.89

Heating

capacity

(kW)

4.0

(0.8 to 5.2)

5.0

(0.8 to 6.5)

5.5

(0.8 to 6.9)

7.2

(1.5 to 10.0)

7.6

(1.5 to 10.1)

7.9

(1.5 to 10.1)

7.9

(1.5 to 10.1)

8.3

(1.5 to 10.2)

8.6

(1.5 to 10.2)

8.6

(2.0 to 10.4)

8.7

(2.0 to 10.5)

8.7

(2.0 to 10.5)

8.7

(2.0 to 10.5)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.9

(2.0 to 10.7)

8.9

(2.0 to 10.7)

8.9

(2.0 to 10.7)

9.0

(2.0 to 10.8)

8.9

(2.2 to 10.8)

8.9

(2.2 to 10.9)

9.0

(2.2 to 10.9)

9.0

(2.2 to 10.9)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

Power

consum

(300 to 1980)

(310 to 2750)

(310 to 3000)

(320 to 3200)

(320 to 3210)

(320 to 3230)

(320 to 3240)

(320 to 3250)

(380 to 2750)

(380 to 2760)

(380 to 2780)

(380 to 2790)

(380 to 2800)

(450 to 2810)

(460 to 2830)

(470 to 2830)

(480 to 2850)

(490 to 2850)

(500 to 2850)

(W)

1450

2050

2400

2100

2320

2480

2700

2860

2300

2350

2400

2450

2500

2100

2250

tion

Operating

current

(A)

6.73

(1.87 to 9.18)

9.51

(1.93 to 12.76)

11.13

(1.93 to 13.91)

9.74

(1.94 to 14.84)

10.76

(1.94 to 14.89)

11.50

(1.94 to 14.98)

11.50

(1.94 to 14.98)

12.52

(1.94 to 15.03)

13.27

(1.94 to 15.07)

10.67

(2.16 to 12.76)

10.90

(2.16 to 12.80)

10.90

(2.16 to 12.80)

10.90

(2.16 to 12.80)

11.13

(2.16 to 12.89)

11.13

(2.16 to 12.89)

11.36

(2.16 to 12.94)

11.36

(2.16 to 12.94)

11.36

(2.16 to 12.94)

11.60

(2.16 to 12.99)

9.74

(2.56 to 13.03)

9.74

(2.61 to 13.13)

10.44

(2.61 to 13.13)

10.44

(2.67 to 13.13)

10.44

(2.73 to 13.22)

10.44

(2.73 to 13.22)

10.44

(2.78 to 13.22)

10.44

(2.78 to 13.22)

10.44

(2.84 to 13.22)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 8 –

Outdoor Unit : RAS-4M27YAV-E

suppl

(V)

230 1 unit 10 –––4.0 –––

eratin

status

2 units 10 10 ––3.60 3.60 ––

3 units 10 10 10 – 2.87 2.87 2.87 –

4 units 10 10 10 10 2.23 2.23 2.23 2.23

Indoor unit Unit capacity (kW)Power

ABCD A B C D

13 –––5.0 –––

16 –––5.5 –––

13 10 ––4.22 3.38 ––

16 10 ––4.57 3.33 ––

13 13 ––3.95 3.95 ––

16 13 ––4.35 3.95 ––

16 16 ––4.30 4.30 ––

13 10 10 – 3.35 2.68 2.68 –

16 10 10 – 3.54 2.58 2.58 –

13 13 10 – 3.11 3.11 2.49 –

16 13 10 – 3.34 3.03 2.43 –

13 13 13 – 2.93 2.93 2.93 –

16 16 10 – 3.26 3.26 2.37 –

16 13 13 – 3.16 2.87 2.87 –

16 16 13 – 3.06 3.06 2.78 –

16 16 16 – 3.00 3.00 3.00 –

13 10 10 10 2.62 2.09 2.09 2.09

16 10 10 10 2.83 2.06 2.06 2.06

13 13 10 10 2.50 2.50 2.00 2.00

16 13 10 10 2.68 2.43 1.95 1.95

13 13 13 10 2.37 2.37 2.37 1.89

16 13 13 10 2.54 2.31 2.31 1.85

13 13 13 13 2.25 2.25 2.25 2.25

16 16 10 10 2.61 2.61 1.89 1.89

Heating

capacity

(kW)

4.0

(0.8 to 5.2)

5.0

(0.8 to 6.5)

5.5

(0.8 to 6.9)

7.2

(1.5 to 10.0)

7.6

(1.5 to 10.1)

7.9

(1.5 to 10.1)

7.9

(1.5 to 10.1)

8.3

(1.5 to 10.2)

8.6

(1.5 to 10.2)

8.6

(2.0 to 10.4)

8.7

(2.0 to 10.5)

8.7

(2.0 to 10.5)

8.7

(2.0 to 10.5)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.9

(2.0 to 10.7)

8.9

(2.0 to 10.7)

8.9

(2.0 to 10.7)

9.0

(2.0 to 10.8)

8.9

(2.2 to 10.8)

8.9

(2.2 to 10.9)

9.0

(2.2 to 10.9)

9.0

(2.2 to 10.9)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

Power

consum

(300 to 1980)

(310 to 2750)

(310 to 3000)

(320 to 3200)

(320 to 3210)

(320 to 3230)

(320 to 3240)

(320 to 3250)

(380 to 2750)

(380 to 2760)

(380 to 2780)

(380 to 2790)

(380 to 2800)

(450 to 2810)

(460 to 2830)

(470 to 2830)

(480 to 2850)

(490 to 2850)

(500 to 2850)

(W)

1450

2050

2400

2100

2320

2480

2700

2860

2300

2350

2400

2450

2500

2100

2250

tion

Operating

current

(A)

6.43

(1.79 to 8.78)

9.09

(1.85 to 12.20)

10.65

(1.85 to 13.31)

9.32

(1.86 to 14.20)

10.29

(1.86 to 14.24)

11.00

(1.86 to 14.33)

11.00

(1.86 to 14.33)

11.98

(1.86 to 14.37)

12.69

(1.86 to 14.42)

10.20

(2.07 to 12.20)

10.43

(2.07 to 12.24)

10.43

(2.07 to 12.24)

10.43

(2.07 to 12.24)

10.65

(2.07 to 12.33)

10.65

(2.07 to 12.33)

10.87

(2.07 to 12.38)

10.87

(2.07 to 12.38)

10.87

(2.07 to 12.38)

11.09

(2.07 to 12.42)

9.32

(2.45 to 12.47)

9.32

(2.50 to 12.56)

9.98

(2.50 to 12.56)

9.98

(2.55 to 12.56)

9.98

(2.61 to 12.64)

9.98

(2.61 to 12.64)

9.98

(2.66 to 12.64)

9.98

(2.66 to 12.64)

9.98

(2.72 to 12.64)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 9 –

Outdoor Unit : RAS-4M27YAV-E

suppl

(V)

240 1 unit 10 –––4.0 –––

eratin

status

2 units 10 10 ––3.60 3.60 ––

3 units 10 10 10 – 2.87 2.87 2.87 –

4 units 10 10 10 10 2.23 2.23 2.23 2.23

Indoor unit Unit capacity (kW)Power

ABCD A B C D

13 –––5.0 –––

16 –––5.5 –––

13 10 ––4.22 3.38 ––

16 10 ––4.57 3.33 ––

13 13 ––3.95 3.95 ––

16 13 ––4.35 3.95 ––

16 16 ––4.30 4.30 ––

13 10 10 – 3.35 2.68 2.68 –

16 10 10 – 3.54 2.58 2.58 –

13 13 10 – 3.11 3.11 2.49 –

16 13 10 – 3.34 3.03 2.43 –

13 13 13 – 2.93 2.93 2.93 –

16 16 10 – 3.26 3.26 2.37 –

16 13 13 – 3.16 2.87 2.87 –

16 16 13 – 3.06 3.06 2.78 –

16 16 16 – 3.00 3.00 3.00 –

13 10 10 10 2.62 2.09 2.09 2.09

16 10 10 10 2.83 2.06 2.06 2.06

13 13 10 10 2.50 2.50 2.00 2.00

16 13 10 10 2.68 2.43 1.95 1.95

13 13 13 10 2.37 2.37 2.37 1.89

16 13 13 10 2.54 2.31 2.31 1.85

13 13 13 13 2.25 2.25 2.25 2.25

16 16 10 10 2.61 2.61 1.89 1.89

Heating

capacity

(kW)

4.0

(0.8 to 5.2)

5.0

(0.8 to 6.5)

5.5

(0.8 to 6.9)

7.2

(1.5 to 10.0)

7.6

(1.5 to 10.1)

7.9

(1.5 to 10.1)

7.9

(1.5 to 10.1)

8.3

(1.5 to 10.2)

8.6

(1.5 to 10.2)

8.6

(2.0 to 10.4)

8.7

(2.0 to 10.5)

8.7

(2.0 to 10.5)

8.7

(2.0 to 10.5)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.9

(2.0 to 10.7)

8.9

(2.0 to 10.7)

8.9

(2.0 to 10.7)

9.0

(2.0 to 10.8)

8.9

(2.2 to 10.8)

8.9

(2.2 to 10.9)

9.0

(2.2 to 10.9)

9.0

(2.2 to 10.9)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

9.0

(2.2 to 11.0)

Power

consum

(300 to 1980)

(310 to 2750)

(310 to 3000)

(320 to 3200)

(320 to 3210)

(320 to 3230)

(320 to 3240)

(320 to 3250)

(380 to 2750)

(380 to 2760)

(380 to 2780)

(380 to 2790)

(380 to 2800)

(450 to 2810)

(460 to 2830)

(470 to 2830)

(480 to 2850)

(490 to 2850)

(500 to 2850)

(W)

1450

2050

2400

2100

2320

2480

2700

2860

2300

2350

2400

2450

2500

2100

2250

tion

Operating

current

(A)

6.16

(1.71 to 8.42)

8.72

(1.77 to 11.69)

10.20

(1.77 to 12.76)

8.93

(1.78 to 13.61)

9.86

(1.78 to 13.65)

10.54

(1.78 to 13.73)

10.54

(1.78 to 13.73)

11.48

(1.78 to 13.78)

12.16

(1.78 to 13.82)

9.78

(1.98 to 11.69)

9.99

(1.98 to 11.73)

9.99

(1.98 to 11.73)

9.99

(1.98 to 11.73)

10.20

(1.98 to 11.82)

10.20

(1.98 to 11.82)

10.42

(1.98 to 11.86)

10.42

(1.98 to 11.86)

10.42

(1.98 to 11.86)

10.63

(1.98 to 11.90)

8.93

(2.34 to 11.95)

8.93

(2.40 to 12.03)

9.57

(2.40 to 12.03)

9.57

(2.45 to 12.03)

9.57

(2.50 to 12.12)

9.57

(2.50 to 12.12)

9.57

(2.55 to 12.12)

9.57

(2.55 to 12.12)

9.57

(2.60 to 12.12)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 10 –

Outdoor Unit : RAS-4M27YACV-E

suppl

(V)

220 1 unit 10 –––2.7 –––

eratin

status

2 units 10 10 ––2.70 2.70 ––

3 units 10 10 10 – 2.53 2.53 2.53 –

4 units 10 10 10 10 1.98 1.98 1.98 1.98

Indoor unit Unit capacity (kW)Power

ABCD A B C D

13 –––3.7 –––

16 –––4.5 –––

13 10 ––3.41 2.49 ––

16 10 ––3.94 2.36 ––

13 13 ––3.15 3.15 ––

16 13 ––3.73 3.07 ––

16 16 ––3.60 3.60 ––

13 10 10 – 3.13 2.28 2.28 –

16 10 10 – 3.50 2.10 2.10 –

13 13 10 – 2.82 2.82 2.06 –

16 13 10 – 3.22 2.65 1.93 –

13 13 13 – 2.60 2.60 2.60 –

16 16 10 – 3.04 3.04 1.82 –

16 13 13 – 2.99 2.46 2.46 –

16 16 13 – 2.80 2.80 2.30 –

16 16 16 – 2.67 2.67 2.67 –

13 10 10 10 2.48 1.81 1.81 1.81

16 10 10 10 2.86 1.71 1.71 1.71

13 13 10 10 2.31 2.31 1.69 1.69

16 13 10 10 2.65 2.18 1.59 1.59

13 13 13 10 2.14 2.14 2.14 1.57

16 13 13 10 2.47 2.03 2.03 1.48

13 13 13 13 2.00 2.00 2.00 2.00

16 16 10 10 2.50 2.50 1.50 1.50

Cooling

capacity

(kW)

2.7

(1.4 to 3.2)

3.7

(1.4 to 4.4)

4.5

(1.4 to 5.0)

5.4

(2.5 to 6.3)

5.9

(2.7 to 6.6)

6.3

(2.9 to 6.9)

6.3

(2.9 to 6.9)

6.8

(3.0 to 7.2)

7.2

(3.2 to 7.5)

7.6

(3.8 to 8.2)

7.7

(3.9 to 8.3)

7.7

(4.0 to 8.5)

7.7

(4.0 to 8.5)

7.8

(4.1 to 8.6)

7.8

(4.1 to 8.6)

7.9

(4.1 to 8.7)

7.9

(4.1 to 8.7)

7.9

(4.2 to 8.9)

8.0

(4.3 to 9.0)

7.9

(4.0 to 8.7)

7.9

(4.1 to 8.8)

8.0

(4.1 to 9.0)

8.0

(4.1 to 9.0)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

Power

consum

(640 to 1520)

(640 to 2000)

(640 to 2040)

(660 to 2220)

(670 to 2400)

(690 to 2570)

(700 to 2750)

(950 to 2720)

(960 to 2740)

(960 to 2790)

(970 to 2810)

(970 to 2830)

(970 to 2880)

(980 to 2900)

(930 to 2800)

(940 to 2820)

(940 to 2860)

(950 to 2880)

(950 to 2900)

tion

(W)

750

(640 to 950)

1200

1650

1530

1810

2040

2320

2550

2400

2410

2430

2440

2450

2500

Operating

current

(A)

3.87

(3.68 to 4.64)

5.74

(3.68 to 7.20)

7.81

(3.68 to 9.28)

7.10

(3.64 to 9.46)

8.40

(3.75 to 10.30)

9.46

(3.81 to 11.13)

9.46

(3.81 to 11.13)

10.76

(3.92 to 11.92)

11.83

(3.98 to 12.76)

11.13

(4.80 to 12.62)

11.18

(4.85 to 12.71)

11.18

(4.85 to 12.94)

11.18

(4.85 to 12.94)

11.27

(4.90 to 13.03)

11.27

(4.90 to 13.03)

11.32

(4.90 to 13.13)

11.32

(4.90 to 13.13)

11.32

(4.90 to 13.36)

11.36

(4.95 to 13.45)

11.36

(4.70 to 12.99)

11.36

(4.75 to 13.08)

11.60

(4.75 to 13.27)

11.60

(4.75 to 13.27)

11.60

(4.80 to 13.36)

11.60

(4.80 to 13.36)

11.60

(4.80 to 13.45)

11.60

(4.80 to 13.45)

11.60

(4.80 to 13.45)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKCV-E, 13 : RAS-M13UKCV-E, 16 : RAS-M16UKCV-E

– 11 –

Outdoor Unit : RAS-4M27YACV-E

suppl

(V)

230 1 unit 10 –––2.7 –––

eratin

status

2 units 10 10 ––2.70 2.70 ––

3 units 10 10 10 – 2.53 2.53 2.53 –

4 units 10 10 10 10 1.98 1.98 1.98 1.98

Indoor unit Unit capacity (kW)Power

ABCD A B C D

13 –––3.7 –––

16 –––4.5 –––

13 10 ––3.41 2.49 ––

16 10 ––3.94 2.36 ––

13 13 ––3.15 3.15 ––

16 13 ––3.73 3.07 ––

16 16 ––3.60 3.60 ––

13 10 10 – 3.13 2.28 2.28 –

16 10 10 – 3.50 2.10 2.10 –

13 13 10 – 2.82 2.82 2.06 –

16 13 10 – 3.22 2.65 1.93 –

13 13 13 – 2.60 2.60 2.60 –

16 16 10 – 3.04 3.04 1.82 –

16 13 13 – 2.99 2.46 2.46 –

16 16 13 – 2.80 2.80 2.30 –

16 16 16 – 2.67 2.67 2.67 –

13 10 10 10 2.48 1.81 1.81 1.81

16 10 10 10 2.86 1.71 1.71 1.71

13 13 10 10 2.31 2.31 1.69 1.69

16 13 10 10 2.65 2.18 1.59 1.59

13 13 13 10 2.14 2.14 2.14 1.57

16 13 13 10 2.47 2.03 2.03 1.48

13 13 13 13 2.00 2.00 2.00 2.00

16 16 10 10 2.50 2.50 1.50 1.50

Cooling

capacity

(kW)

2.7

(1.4 to 3.2)

3.7

(1.4 to 4.4)

4.5

(1.4 to 5.0)

5.4

(2.5 to 6.3)

5.9

(2.7 to 6.6)

6.3

(2.9 to 6.9)

6.3

(2.9 to 6.9)

6.8

(3.0 to 7.2)

7.2

(3.2 to 7.5)

7.6

(3.8 to 8.2)

7.7

(3.9 to 8.3)

7.7

(4.0 to 8.5)

7.7

(4.0 to 8.5)

7.8

(4.1 to 8.6)

7.8

(4.1 to 8.6)

7.9

(4.1 to 8.7)

7.9

(4.1 to 8.7)

7.9

(4.2 to 8.9)

8.0

(4.3 to 9.0)

7.9

(4.0 to 8.7)

7.9

(4.1 to 8.8)

8.0

(4.1 to 9.0)

8.0

(4.1 to 9.0)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

Power

consum

(640 to 1520)

(640 to 2000)

(640 to 2040)

(660 to 2220)

(670 to 2400)

(690 to 2570)

(700 to 2750)

(950 to 2720)

(960 to 2740)

(960 to 2790)

(970 to 2810)

(970 to 2830)

(970 to 2880)

(980 to 2900)

(930 to 2800)

(940 to 2820)

(940 to 2860)

(950 to 2880)

(950 to 2900)

tion

(W)

750

(640 to 950)

1200

1650

1530

1810

2040

2320

2550

2400

2410

2430

2440

2450

2500

Operating

current

(A)

3.71

(3.52 to 4.44)

5.49

(3.52 to 6.88)

7.47

(3.52 to 8.87)

6.79

(3.48 to 9.05)

8.03

(3.59 to 9.85)

9.05

(3.64 to 10.65)

9.05

(3.64 to 10.65)

10.29

(3.75 to 11.40)

11.31

(3.80 to 12.20)

10.65

(4.59 to 12.07)

10.69

(4.64 to 12.16)

10.69

(4.64 to 12.38)

10.69

(4.64 to 12.38)

10.78

(4.69 to 12.47)

10.78

(4.69 to 12.47)

10.83

(4.69 to 12.56)

10.83

(4.69 to 12.56)

10.83

(4.69 to 12.78)

10.87

(4.73 to 12.87)

10.87

(4.49 to 12.42)

10.87

(4.54 to 12.51)

11.09

(4.54 to 12.69)

11.09

(4.54 to 12.69)

11.09

(4.59 to 12.78)

11.09

(4.59 to 12.78)

11.09

(4.59 to 12.87)

11.09

(4.59 to 12.87)

11.09

(4.59 to 12.87)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKCV-E, 13 : RAS-M13UKCV-E, 16 : RAS-M16UKCV-E

– 12 –

Outdoor Unit : RAS-4M27YACV-E

suppl

(V)

240 1 unit 10 –––2.7 –––

eratin

status

2 units 10 10 ––2.70 2.70 ––

3 units 10 10 10 – 2.53 2.53 2.53 –

4 units 10 10 10 10 1.98 1.98 1.98 1.98

Indoor unit Unit capacity (kW)Power

ABCD A B C D

13 –––3.7 –––

16 –––4.5 –––

13 10 ––3.41 2.49 ––

16 10 ––3.94 2.36 ––

13 13 ––3.15 3.15 ––

16 13 ––3.73 3.07 ––

16 16 ––3.60 3.60 ––

13 10 10 – 3.13 2.28 2.28 –

16 10 10 – 3.50 2.10 2.10 –

13 13 10 – 2.82 2.82 2.06 –

16 13 10 – 3.22 2.65 1.93 –

13 13 13 – 2.60 2.60 2.60 –

16 16 10 – 3.04 3.04 1.82 –

16 13 13 – 2.99 2.46 2.46 –

16 16 13 – 2.80 2.80 2.30 –

16 16 16 – 2.67 2.67 2.67 –

13 10 10 10 2.48 1.81 1.81 1.81

16 10 10 10 2.86 1.71 1.71 1.71

13 13 10 10 2.31 2.31 1.69 1.69

16 13 10 10 2.65 2.18 1.59 1.59

13 13 13 10 2.14 2.14 2.14 1.57

16 13 13 10 2.47 2.03 2.03 1.48

13 13 13 13 2.00 2.00 2.00 2.00

16 16 10 10 2.50 2.50 1.50 1.50

Cooling

capacity

(kW)

2.7

(1.4 to 3.2)

3.7

(1.4 to 4.4)

4.5

(1.4 to 5.0)

5.4

(2.5 to 6.3)

5.9

(2.7 to 6.6)

6.3

(2.9 to 6.9)

6.3

(2.9 to 6.9)

6.8

(3.0 to 7.2)

7.2

(3.2 to 7.5)

7.6

(3.8 to 8.2)

7.7

(3.9 to 8.3)

7.7

(4.0 to 8.5)

7.7

(4.0 to 8.5)

7.8

(4.1 to 8.6)

7.8

(4.1 to 8.6)

7.9

(4.1 to 8.7)

7.9

(4.1 to 8.7)

7.9

(4.2 to 8.9)

8.0

(4.3 to 9.0)

7.9

(4.0 to 8.7)

7.9

(4.1 to 8.8)

8.0

(4.1 to 9.0)

8.0

(4.1 to 9.0)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.1)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

8.0

(4.2 to 9.2)

Power

consum

(640 to 1520)

(640 to 2000)

(640 to 2040)

(660 to 2220)

(670 to 2400)

(690 to 2570)

(700 to 2750)

(950 to 2720)

(960 to 2740)

(960 to 2790)

(970 to 2810)

(970 to 2830)

(970 to 2880)

(980 to 2900)

(930 to 2800)

(940 to 2820)

(940 to 2860)

(950 to 2880)

(950 to 2900)

tion

(W)

750

(640 to 950)

1200

1650

1530

1810

2040

2320

2550

2400

2410

2430

2440

2450

2500

Operating

current

(A)

3.55

(3.38 to 4.26)

5.26

(3.38 to 6.60)

7.16

(3.38 to 8.50)

6.51

(3.33 to 8.67)

7.70

(3.44 to 9.44)

8.67

(3.49 to 10.20)

8.67

(3.49 to 10.20)

9.86

(3.59 to 10.93)

10.84

(3.65 to 11.69)

10.20

(4.40 to 11.56)

10.25

(4.44 to 11.65)

10.25

(4.44 to 11.86)

10.25

(4.44 to 11.86)

10.33

(4.49 to 11.95)

10.33

(4.49 to 11.95)

10.37

(4.49 to 12.03)

10.37

(4.49 to 12.03)

10.37

(4.49 to 12.24)

10.42

(4.54 to 12.33)

10.42

(4.31 to 11.90)

10.42

(4.35 to 11.99)

10.63

(4.35 to 12.16)

10.63

(4.35 to 12.16)

10.63

(4.40 to 12.24)

10.63

(4.40 to 12.24)

10.63

(4.40 to 12.33)

10.63

(4.40 to 12.33)

10.63

(4.40 to 12.33)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKCV-E, 13 : RAS-M13UKCV-E, 16 : RAS-M16UKCV-E

– 13 –

Outdoor Unit : RAS-3M26YAV-E

suppl

(V)

220 1 unit 10 ––2.7 ––

eratin

status

2 units 10 10 – 2.70 2.70 –

3 units 10 10 10 2.47 2.47 2.47

Indoor unit Unit capacity (kW)Power

ABCABC

13 ––3.7 ––

16 ––4.5 ––

13 10 – 3.41 2.49 –

16 10 – 3.94 2.36 –

13 13 – 3.15 3.15 –

16 13 – 3.73 3.07 –

16 16 – 3.60 3.60 –

13 10 10 3.01 2.20 2.20

16 10 10 3.36 2.02 2.02

13 13 10 2.71 2.71 1.98

16 13 10 3.10 2.55 1.86

13 13 13 2.50 2.50 2.50

16 16 10 2.88 2.88 1.73

16 13 13 2.84 2.33 2.33

16 16 13 2.66 2.66 2.19

Cooling

capacity

(kW)

2.7

(1.4 to 3.2)

3.7

(1.4 to 4.4)

4.5

(1.4 to 5.0)

5.4

(2.5 to 6.3)

5.9

(2.7 to 6.6)

6.3

(2.9 to 6.9)

6.3

(2.9 to 6.9)

6.8

(3.0 to 7.2)

7.2

(3.2 to 7.5)

7.4

(3.8 to 8.2)

7.4

(3.9 to 8.3)

7.4

(4.0 to 8.5)

7.4

(4.0 to 8.5)

7.5

(4.0 to 8.6)

7.5

(4.0 to 8.6)

7.5

(4.1 to 8.8)

7.5

(4.1 to 8.8)

7.5

(4.2 to 8.9)

Power

consum

(640 to 1520)

(640 to 2000)

(640 to 2040)

(660 to 2220)

(670 to 2400)

(690 to 2570)

(700 to 2750)

(950 to 2720)

(950 to 2750)

(950 to 2820)

(980 to 2850)

(980 to 2920)

(980 to 2950)

tion

(W)

750

(640 to 950)

1200

1650

1530

1810

2040

2320

2550

2230

2250

Operating

current

(A)

3.87

(3.68 to 4.64)

5.74

(3.68 to 7.20)

7.81

(3.68 to 9.28)

7.10

(3.64 to 9.46)

8.40

(3.75 to 10.30)

9.46

(3.81 to 11.13)

9.46

(3.81 to 11.13)

10.76

(3.92 to 11.92)

11.83

(3.98 to 12.76)

10.34

(4.80 to 12.62)

10.34

(4.80 to 12.76)

10.34

(4.80 to 13.08)

10.34

(4.80 to 13.08)

10.44

(4.95 to 13.22)

10.44

(4.95 to 13.22)

10.44

(4.95 to 13.54)

10.44

(4.95 to 13.54)

10.44

(4.95 to 13.68)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 14 –

Outdoor Unit : RAS-3M26YAV-E

suppl

(V)

230 1 unit 10 ––2.7 ––

eratin

status

2 units 10 10 – 2.70 2.70 –

3 units 10 10 10 2.47 2.47 2.47

Indoor unit Unit capacity (kW)Power

ABCABC

13 ––3.7 ––

16 ––4.5 ––

13 10 – 3.41 2.49 –

16 10 – 3.94 2.36 –

13 13 – 3.15 3.15 –

16 13 – 3.73 3.07 –

16 16 – 3.60 3.60 –

13 10 10 3.01 2.20 2.20

16 10 10 3.36 2.02 2.02

13 13 10 2.71 2.71 1.98

16 13 10 3.10 2.55 1.86

13 13 13 2.50 2.50 2.50

16 16 10 2.88 2.88 1.73

16 13 13 2.84 2.33 2.33

16 16 13 2.66 2.66 2.19

Cooling

capacity

(kW)

2.7

(1.4 to 3.2)

3.7

(1.4 to 4.4)

4.5

(1.4 to 5.0)

5.4

(2.5 to 6.3)

5.9

(2.7 to 6.6)

6.3

(2.9 to 6.9)

6.3

(2.9 to 6.9)

6.8

(3.0 to 7.2)

7.2

(3.2 to 7.5)

7.4

(3.8 to 8.2)

7.4

(3.9 to 8.3)

7.4

(4.0 to 8.5)

7.4

(4.0 to 8.5)

7.5

(4.0 to 8.6)

7.5

(4.0 to 8.6)

7.5

(4.1 to 8.8)

7.5

(4.1 to 8.8)

7.5

(4.2 to 8.9)

Power

consum

(640 to 1520)

(640 to 2000)

(640 to 2040)

(660 to 2220)

(670 to 2400)

(690 to 2570)

(700 to 2750)

(950 to 2720)

(950 to 2750)

(950 to 2820)

(980 to 2850)

(980 to 2920)

(980 to 2950)

tion

(W)

750

(640 to 950)

1200

1650

1530

1810

2040

2320

2550

2230

2250

Operating

current

(A)

3.71

(3.52 to 4.44)

5.49

(3.52 to 6.88)

7.47

(3.52 to 8.87)

6.79

(3.48 to 9.05)

8.03

(3.59 to 9.85)

9.05

(3.64 to 10.65)

9.05

(3.64 to 10.65)

10.29

(3.75 to 11.40)

11.31

(3.80 to 12.20)

9.89

(4.59 to 12.07)

9.89

(4.59 to 12.20)

9.89

(4.59 to 12.51)

9.89

(4.59 to 12.51)

9.98

(4.73 to 12.64)

9.98

(4.73 to 12.64)

9.98

(4.73 to 12.95)

9.98

(4.73 to 12.95)

9.98

(4.73 to 13.09)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 15 –

Outdoor Unit : RAS-3M26YAV-E

suppl

(V)

240 1 unit 10 ––2.7 ––

eratin

status

2 units 10 10 – 2.70 2.70 –

3 units 10 10 10 2.47 2.47 2.47

Indoor unit Unit capacity (kW)Power

ABCABC

13 ––3.7 ––

16 ––4.5 ––

13 10 – 3.41 2.49 –

16 10 – 3.94 2.36 –

13 13 – 3.15 3.15 –

16 13 – 3.73 3.07 –

16 16 – 3.60 3.60 –

13 10 10 3.01 2.20 2.20

16 10 10 3.36 2.02 2.02

13 13 10 2.71 2.71 1.98

16 13 10 3.10 2.55 1.86

13 13 13 2.50 2.50 2.50

16 16 10 2.88 2.88 1.73

16 13 13 2.84 2.33 2.33

16 16 13 2.66 2.66 2.19

Cooling

capacity

(kW)

2.7

(1.4 to 3.2)

3.7

(1.4 to 4.4)

4.5

(1.4 to 5.0)

5.4

(2.5 to 6.3)

5.9

(2.7 to 6.6)

6.3

(2.9 to 6.9)

6.3

(2.9 to 6.9)

6.8

(3.0 to 7.2)

7.2

(3.2 to 7.5)

7.4

(3.8 to 8.2)

7.4

(3.9 to 8.3)

7.4

(4.0 to 8.5)

7.4

(4.0 to 8.5)

7.5

(4.0 to 8.6)

7.5

(4.0 to 8.6)

7.5

(4.1 to 8.8)

7.5

(4.1 to 8.8)

7.5

(4.2 to 8.9)

Power

consum

(640 to 1520)

(640 to 2000)

(640 to 2040)

(660 to 2220)

(670 to 2400)

(690 to 2570)

(700 to 2750)

(950 to 2720)

(950 to 2750)

(950 to 2820)

(980 to 2850)

(980 to 2920)

(980 to 2950)

tion

(W)

750

(640 to 950)

1200

1650

1530

1810

2040

2320

2550

2230

2250

Operating

current

(A)

3.55

(338 to 4.26)

5.26

(3.38 to 6.60)

7.16

(3.38 to 8.50)

6.51

(3.33 to 8.67)

7.70

(3.44 to 9.44)

8.67

(3.49 to 10.20)

8.67

(3.49 to 10.20)

9.86

(3.59 to 10.93)

10.84

(3.65 to 11.69)

9.48

(4.40 to 11.56)

9.48

(4.40 to 11.69)

9.48

(4.40 to 11.99)

9.48

(4.40 to 11.99)

9.57

(4.54 to 12.12)

9.57

(4.54 to 12.12)

9.57

(4.54 to 12.41)

9.57

(4.54 to 12.41)

9.57

(4.54 to 12.54)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 16 –

Outdoor Unit : RAS-3M26YAV-E

suppl

(V)

220 1 unit 10 ––4.0 ––

eratin

status

2 units 10 10 – 3.60 3.60 –

3 units 10 10 10 2.87 2.87 2.87

Indoor unit Unit capacity (kW)Power

ABCABC

13 ––5.0 ––

16 ––5.5 ––

13 10 – 4.22 3.38 –

16 10 – 4.57 3.33 –

13 13 – 3.95 3.95 –

16 13 – 4.35 3.95 –

16 16 – 4.30 4.30 –

13 10 10 3.35 2.68 2.68

16 10 10 3.59 2.61 2.61

13 13 10 3.14 3.14 2.51

16 13 10 3.34 3.03 2.43

13 13 13 2.93 2.93 2.93

16 16 10 3.26 3.26 2.37

16 13 13 3.16 2.87 2.87

16 16 13 3.09 3.09 2.81

Heating

capacity

(kW)

4.0

(0.8 to 5.2)

5.0

(0.8 to 6.5)

5.5

(0.8 to 6.9)

7.2

(1.5 to 10.0)

7.6

(1.5 to 10.1)

7.9

(1.5 to 10.1)

7.9

(1.5 to 10.1)

8.3

(1.5 to 10.2)

8.6

(1.5 to 10.2)

8.6

(2.0 to 10.4)

8.7

(2.0 to 10.5)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.9

(2.0 to 10.7)

8.9

(2.0 to 10.7)

9.0

(2.0 to 10.8)

Power

consum

(300 to 1980)

(310 to 2750)

(310 to 3000)

(320 to 3200)

(320 to 3210)

(320 to 3230)

(320 to 3240)

(320 to 3250)

(380 to 2750)

(380 to 2760)

(380 to 2780)

(380 to 2790)

(380 to 2800)

(W)

1500

2050

2400

2050

2240

2380

2560

2700

2300

2360

2430

2490

2550

tion

Operating

current

(A)

6.96

(1.87 to 9.18)

9.51

(1.93 to 12.76)

11.13

(1.93 to 13.91)

9.51

(1.94 to 14.84)

10.39

(1.94 to 14.89)

11.04

(1.94 to 14.98)

11.04

(1.94 to 14.98)

11.87

(1.94 to 15.03)

12.52

(1.94 to 15.07)

10.67

(2.16 to 12.76)

10.95

(2.16 to 12.80)

11.27

(2.16 to 12.89)

11.27

(2.16 to 12.89)

11.27

(2.16 to 12.89)

11.27

(2.16 to 12.89)

11.55

(2.16 to 12.94)

11.55

(2.16 to 12.94)

11.83

(2.16 to 12.99)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 17 –

Outdoor Unit : RAS-3M26YAV-E

suppl

(V)

230 1 unit 10 ––4.0 ––

eratin

status

2 units 10 10 – 3.60 3.60 –

3 units 10 10 10 2.87 2.87 2.87

Indoor unit Unit capacity (kW)Power

ABCABC

13 ––5.0 ––

16 ––5.5 ––

13 10 – 4.22 3.38 –

16 10 – 4.57 3.33 –

13 13 – 3.95 3.95 –

16 13 – 4.35 3.95 –

16 16 – 4.30 4.30 –

13 10 10 3.35 2.68 2.68

16 10 10 3.59 2.61 2.61

13 13 10 3.14 3.14 2.51

16 13 10 3.34 3.03 2.43

13 13 13 2.93 2.93 2.93

16 16 10 3.26 3.26 2.37

16 13 13 3.16 2.87 2.87

16 16 13 3.09 3.09 2.81

Heating

capacity

(kW)

4.0

(0.8 to 5.2)

5.0

(0.8 to 6.5)

5.5

(0.8 to 6.9)

7.2

(1.5 to 10.0)

7.6

(1.5 to 10.1)

7.9

(1.5 to 10.1)

7.9

(1.5 to 10.1)

8.3

(1.5 to 10.2)

8.6

(1.5 to 10.2)

8.6

(2.0 to 10.4)

8.7

(2.0 to 10.5)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.9

(2.0 to 10.7)

8.9

(2.0 to 10.7)

9.0

(2.0 to 10.8)

Power

consum

(300 to 1980)

(310 to 2750)

(310 to 3000)

(320 to 3200)

(320 to 3210)

(320 to 3230)

(320 to 3240)

(320 to 3250)

(380 to 2750)

(380 to 2760)

(380 to 2780)

(380 to 2790)

(380 to 2800)

(W)

1500

2050

2400

2050

2240

2380

2560

2700

2300

2360

2430

2490

2550

tion

Operating

current

(A)

6.65

(1.79 to 8.78)

9.09

(1.85 to 12.20)

10.65

(1.85 to 13.31)

9.09

(1.86 to 14.20)

9.94

(1.86 to 14.24)

10.56

(1.86 to 14.33)

10.56

(1.86 to 14.33)

11.36

(1.86 to 14.37)

11.98

(1.86 to 14.42)

10.20

(2.07 to 12.20)

10.47

(2.07 to 12.24)

10.78

(2.07 to 12.33)

10.78

(2.07 to 12.33)

10.78

(2.07 to 12.33)

10.78

(2.07 to 12.33)

11.05

(2.07 to 12.38)

11.05

(2.07 to 12.38)

11.31

(2.07 to 12.42)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 18 –

Outdoor Unit : RAS-3M26YAV-E

suppl

(V)

240 1 unit 10 ––4.0 ––

eratin

status

2 units 10 10 – 3.60 3.60 –

3 units 10 10 10 2.87 2.87 2.87

Indoor unit Unit capacity (kW)Power

ABCABC

13 ––5.0 ––

16 ––5.5 ––

13 10 – 4.22 3.38 –

16 10 – 4.57 3.33 –

13 13 – 3.95 3.95 –

16 13 – 4.35 3.95 –

16 16 – 4.30 4.30 –

13 10 10 3.35 2.68 2.68

16 10 10 3.59 2.61 2.61

13 13 10 3.14 3.14 2.51

16 13 10 3.34 3.03 2.43

13 13 13 2.93 2.93 2.93

16 16 10 3.26 3.26 2.37

16 13 13 3.16 2.87 2.87

16 16 13 3.09 3.09 2.81

Heating

capacity

(kW)

4.0

(0.8 to 5.2)

5.0

(0.8 to 6.5)

5.5

(0.8 to 6.9)

7.2

(1.5 to 10.0)

7.6

(1.5 to 10.1)

7.9

(1.5 to 10.1)

7.9

(1.5 to 10.1)

8.3

(1.5 to 10.2)

8.6

(1.5 to 10.2)

8.6

(2.0 to 10.4)

8.7

(2.0 to 10.5)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.8

(2.0 to 10.6)

8.9

(2.0 to 10.7)

8.9

(2.0 to 10.7)

9.0

(2.0 to 10.8)

Power

consumption

(W)

1500

(300 to 1980)

2050

(310 to 2750)

2400

(310 to 3000)

2050

(320 to 3200)

2240

(320 to 3210)

2380

(320 to 3230)

2380

(320 to 3230)

2560

(320 to 3240)

2700

(320 to 3250)

2300

(380 to 2750)

2360

(380 to 2760)

2430

(380 to 2780)

2430

(380 to 2780)

2430

(380 to 2780)

2430

(380 to 2780)

2490

(380 to 2790)

2490

(380 to 2790)

2550

(380 to 2800)

Operating

current

(A)

6.38

(1.71 to 8.42)

8.72

(1.77 to 11.69)

10.20

(1.77 to 12.76)

8.72

(1.78 to 13.61)

9.52

(1.78 to 13.65)

10.12

(1.78 to 13.73)

10.12

(1.78 to 13.73)

10.88

(1.78 to 13.78)

11.48

(1.78 to 13.82)

9.78

(1.98 to 11.69)

10.03

(1.98 to 11.73)

10.33

(1.98 to 11.82)

10.33

(1.98 to 11.82)

10.33

(1.98 to 11.82)

10.33

(1.98 to 11.82)

10.59

(1.98 to 11.86)

10.59

(1.98 to 11.86)

10.84

(1.98 to 11.90)

Outdoor

noise

(dB)

• The above specification values are those under the conditions that the indoor DB/WB=27/19°C and the outdoor DB/ WB=35/–°C.

• Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

– 19 –

1-2-1. Operation Characteristic Curve

• Conditions

Indoor : DB27˚C/WB19˚C Outdoor : DB35˚C Air flow : High

Pipe length: 5m x 4 4 units operating

8 6

Current (A)

4 2 0

10 20 30 40 50 60 70 80

Inverter output frequency (rps)

220V

240V

230V

• Conditions Indoor : DB20˚C

Outdoor : DB7˚C / WB6˚C Air flow : High

Pipe length: 5m x 4 4 units operating

8 6

Current (A)

4 2

10 10020 30 40 50 60 70 80 90

Inverter output frequency (rps)

1-2-2. Capacity Variation Ratio According to Outdoor Temperature

110

100

Current limited start

110

• Conditions Indoor : DB20˚C

100

Air flow : High Pipe length : 5m x 4 4 units operating

220V

240V

230V

• Conditions Indoor : DB27˚C/WB19˚C Indoor air flow : High

Cooling capacity ratio (%)

Pipe length : 5m x 4 4 units operating

33 34 35 36 37 38 39 40 41 42 43 44

Outdoor temp. (˚C)

Heating capacity ratio (%)

1-2-3. Capacity Variation Ratio According to Pipe Length

110

105

100

• Conditions

Indoor : DB27˚C/WB19˚C Outdoor : DB35˚C

Indoor air flow: High

Coolimg capacity ratio (%)

4 units operating

Standard pipe length 20m

10 20 30 40 50 60 70 80

Total pipe length (m)

110

105

100

Heating capacity ratio (%)

-9-8-7-6-5-4-3-2-1012345678910 Outdoor temp. (˚C)

Standard pipe length 20m

• Conditions

Indoor : DB20˚C Outdoor : DB7˚C/WB6˚C Indoor air flow: High 4 units operating

10 20 30 40 50 60 70 80

Total pipe length (m)

– 20 –

1-3. Electrical Data

Outdoor Unit : RAS-4M27YAV-E

Combination of

indoor unit operation

Vol ts-

Ph.

System Compressor Fan motor FLA

Voltage range Power supply

Min. Max. MCA ICF

MOCP

(Amps)

MSC RLA Indoor Outdoor

1 unit

2 units

3 units

10 ––– 4.48 4.48 20 3.06 3.06 0.15 x 1 = 0.15 0.5 13 ––– 6.70 6.70 20 4.84 4.84 0.15 x 1 = 0.15 0.5 16 ––– 9.18 9.18 20 6.82 6.82 0.15 x 1 = 0.15 0.5 10 10 –– 8.29 8.29 20 5.99 5.99 0.15 x 2 = 0.30 0.5 13 10 –– 9.84 9.84 20 7.23 7.23 0.15 x 2 = 0.30 0.5 16 10 –– 11.11 11.11 20 8.25 8.25 0.15 x 2 = 0.30 0.5 13 13 –– 11.11 11.11 20 8.25 8.25 0.15 x 2 = 0.30 0.5 16 13 –– 12.66 12.66 20 9.49 9.49 0.15 x 2 = 0.30 0.5 16 16 –– 13.94 13.94 20 10.51 10.51 0.15 x 2 = 0.30 0.5 10 10 10 – 13.08 13.08 20 9.70 9.70 0.15 x 3 = 0.45 0.5 13 10 10 – 13.13 13.13 20 9.74 9.74 0.15 x 3 = 0.45 0.5 16 10 10 – 13.13 13.13 20 9.74 9.74 0.15 x 3 = 0.45 0.5 13 13 10 – 13.13 13.13 20 9.74 9.74 0.15 x 3 = 0.45 0.5 16 13 10 – 13.24 13.24 20 9.83 9.83 0.15 x 3 = 0.45 0.5

50 or 60 230–1198 264

13 13 13 – 13.24 13.24 20 9.83 9.83 0.15 x 3 = 0.45 0.5 16 16 10 – 13.30 13.30 20 9.88 9.88 0.15 x 3 = 0.45 0.5 16 13 13 – 13.30 13.30 20 9.88 9.88 0.15 x 3 = 0.45 0.5 16 16 13 – 13.30 13.30 20 9.88 9.88 0.15 x 3 = 0.45 0.5 16 16 16 – 13.35 13.35 20 9.92 9.92 0.15 x 3 = 0.45 0.5

4 units

10 10 10 10 13.31 13.31 20 9.77 9.77 0.15 x 4 = 0.60 0.5 13 10 10 10 13.31 13.31 20 9.77 9.77 0.15 x 4 = 0.60 0.5 16 10 10 10 13.59 13.59 20 9.99 9.99 0.15 x 4 = 0.60 0.5 13 13 10 10 13.59 13.59 20 9.99 9.99 0.15 x 4 = 0.60 0.5 16 13 10 10 13.59 13.59 20 9.99 9.99 0.15 x 4 = 0.60 0.5 13 13 13 10 13.59 13.59 20 9.99 9.99 0.15 x 4 = 0.60 0.5 16 13 13 10 13.59 13.59 20 9.99 9.99 0.15 x 4 = 0.60 0.5 13 13 13 13 13.59 13.59 20 9.99 9.99 0.15 x 4 = 0.60 0.5 16 16 10 10

13.59 13.59 20 9.99 9.99 0.15 x 4 = 0.60 0.5

NOTE :

Model of Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E MCA : Minimum Circuit Amps. ICF : Maximum Instantaneous Current Flow (Equivalent to MCA in case of inverter air conditioner) MOCP: Maximum Overcurrent Protection (Fuse only) MSC : Maximum Starting Current FLA : Full Load Amps. RLA : Rated Load Amps. RLA under conditions on the right.

Indoor temp. (°C) 27 19 Outdoor temp. (°C) 3 5 —

DB WB

– 21 –

Outdoor Unit : RAS-4M27YAV-E

Combination of

indoor unit operation

Vol ts-

Ph.

System Compressor Fan motor FLA

Voltage range Power supply

Min. Max. MCA ICF

MOCP

(Amps)

MSC RLA Indoor Outdoor

1 unit

2 units

3 units

10 ––– 7.88 7.88 20 5.78 5.78 0. 15 x 1 = 0.15 0.5 13 ––– 11.20 11.20 20 8.44 8.44 0.15 x 1 = 0.15 0.5 16 ––– 13.15 13.15 20 10.00 10.00 0.15 x 1 = 0.15 0.5 10 10 –– 11.45 11.45 20 8.52 8.52 0.15 x 2 = 0.30 0.5 13 10 –– 12.66 12.66 20 9.49 9.49 0.15 x 2 = 0.30 0.5 16 10 –– 13.55 13.55 20 10.20 10.20 0.15 x 2 = 0.30 0.5 13 13 –– 13.55 13.55 20 10.20 10.20 0.15 x 2 = 0.30 0.5 16 13 –– 14.78 14.78 20 11.18 11.18 0.15 x 2 = 0.30 0.5 16 16 –– 15.66 15.66 20 11.89 11.89 0.15 x 2 = 0.30 0.5 10 10 10 – 12.51 12.51 20 9.25 9.25 0.15 x 3 = 0.45 0.5 13 10 10 – 12.80 12.80 20 9.48 9.48 0.15 x 3 = 0.45 0.5 16 10 10 – 12.80 12.80 20 9.48 9.48 0.15 x 3 = 0.45 0.5 13 13 10 – 12.80 12.80 20 9.48 9.48 0.15 x 3 = 0.45 0.5 16 13 10 – 13.08 13.08 20 9.70 9.70 0.15 x 3 = 0.45 0.5

50 or 60 230–1198 264

13 13 13 – 13.08 13.08 20 9.70 9.70 0.15 x 3 = 0.45 0.5 16 16 10 – 13.35 13.35 20 9.92 9.92 0.15 x 3 = 0.45 0.5 16 13 13 – 13.35 13.35 20 9.92 9.92 0.15 x 3 = 0.45 0.5 16 16 13 – 13.35 13.35 20 9.92 9.92 0.15 x 3 = 0.45 0.5 16 16 16 – 13.63 13.63 20 10.14 10.14 0.15 x 3 = 0.45 0.5

4 units

10 10 10 10 11.38 11.38 20 8.22 8.22 0.15 x 4 = 0.60 0.5 13 10 10 10 11.38 11.38 20 8.22 8.22 0.15 x 4 = 0.60 0.5 16 10 10 10 12.20 12.20 20 8.88 8.88 0.15 x 4 = 0.60 0.5 13 13 10 10 12.20 12.20 20 8.88 8.88 0.15 x 4 = 0.60 0.5 16 13 10 10 12.20 12.20 20 8.88 8.88 0.15 x 4 = 0.60 0.5 13 13 13 10 12.20 12.20 20 8.88 8.88 0.15 x 4 = 0.60 0.5 16 13 13 10 12.20 12.20 20 8.88 8.88 0.15 x 4 = 0.60 0.5 13 13 13 13 12.20 12.20 20 8.88 8.88 0.15 x 4 = 0.60 0.5 16 16 10 10

12.20 12.20 20 8.88 8.88 0.15 x 4 = 0.60 0.5

NOTE :

Indoor temp. (°C) 20 — Outdoor temp. (°C) 7 6

DB WB

– 22 –

Outdoor Unit : RAS-4M27YACV-E <Cooling>

Combination of

indoor unit operation

Vol ts-

Ph.

System Compressor Fan motor FLA

Voltage range Power supply

Min. Max. MCA ICF

MOCP

(Amps)

MSC RLA Indoor Outdoor

1 unit

2 units

3 units

50 or 60 230–1198 264

4 units

13.59 13.59 20 9.99 9.99 0.15 x 4 = 0.60 0.5

NOTE :

Model of Indoor unit 10 : RAS-M10UKCV-E, 13 : RAS-M13UKCV-E, 16 : RAS-M16UKCV-E MCA : Minimum Circuit Amps. ICF : Maximum Instantaneous Current Flow (Equivalent to MCA in case of inverter air conditioner) MOCP: Maximum Overcurrent Protection (Fuse only) MSC : Maximum Starting Current FLA : Full Load Amps. RLA : Rated Load Amps. RLA under conditions on the right.

Indoor temp. (°C) 27 19 Outdoor temp. (°C) 3 5 —

DB WB

– 23 –

Outdoor Unit : RAS-3M26YAV-E <Cooling>

Combination of

indoor unit operation

Vol ts-

Ph.

System Compressor Fan motor FLA

Voltage range Power supply

Min. Max. MCA ICF

MOCP

(Amps)

MSC RLA Indoor Outdoor

1 unit

2 units

3 units

10 –– 4.48 4.48 20 3.06 3.06 0.15 x 1 = 0.15 0. 5 13 –– 6.70 6.70 20 4.84 4.84 0.15 x 1 = 0.15 0.5 16 –– 9.18 9.18 20 6.82 6.82 0.15 x 1 = 0.15 0.5 10 10 – 8.29 8.29 20 5.99 5.99 0.15 x 2 = 0.30 0.5 13 10 – 9.84 9.84 20 7.23 7.23 0.15 x 2 = 0.30 0.5 16 10 – 11.11 11.11 20 8.25 8.25 0.15 x 2 = 0.30 0. 5 13 13 – 11.11 11.11 20 8.25 8.25 0.15 x 2 = 0.30 0. 5 16 13 – 12.66 12.66 20 9.49 9.49 0.15 x 2 = 0.30 0.5 16 16 – 13.94 13.94 20 10.51 10.51 0.15 x 2 = 0.30 0.5 10 10 10 12.13 12.13 20 8.94 8.94 0.15 x 3 = 0.45 0.5 13 10 10 12.13 12.13 20 8.94 8.94 0.15 x 3 = 0.45 0.5 16 10 10 12.13 12.13 20 8.94 8.94 0.15 x 3 = 0.45 0.5 13 13 10 12.13 12.13 20 8.94 8.94 0.15 x 3 = 0.45 0.5 16 13 10 12.24 12.24 20 9.03 9.03 0.15 x 3 = 0.45 0.5 13 13 13 12.24 12.24 20 9.03 9.03 0.15 x 3 = 0.45 0.5 16 16 10 12.24 12.24 20 9.03 9.03 0.15 x 3 = 0.45 0.5 16 13 13 12.24 12.24 20 9.03 9.03 0.15 x 3 = 0.45 0.5 16 16 13

50 or 60 230–1198 264

12.24 12.24 20 9.03 9.03 0.15 x 3 = 0.45 0.5

NOTE :

Indoor temp. (°C) 27 19 Outdoor temp. (°C) 35 —

DB WB

– 24 –

Outdoor Unit : RAS-3M26YAV-E <Heating>

Combination of

indoor unit operation

Vol ts-

Ph.

System Compressor Fan motor FLA

Voltage range Power supply

Min. Max. MCA ICF

MOCP

(Amps)

MSC RLA Indoor Outdoor

1 unit

2 units

3 units

10 –– 8.15 8.15 20 6.00 6.00 0.15 x 1 = 0.15 0.5 13 –– 11.20 11.20 20 8.44 8.44 0.15 x 1 = 0.15 0.5 16 –– 13.15 13.15 20 10.00 10.00 0.15 x 1 = 0.15 0.5 10 10 – 11.16 11.16 20 8.29 8.29 0.15 x 2 = 0.30 0.5 13 10 – 12.23 12.23 20 9.14 9.14 0.15 x 2 = 0.30 0.5 16 10 – 13.00 13.00 20 9.76 9.76 0.15 x 2 = 0.30 0.5 13 13 – 13.00 13.00 20 9.76 9.76 0.15 x 2 = 0.30 0.5 16 13 – 14.00 14.00 20 10.56 10.56 0.15 x 2 = 0.30 0.5 16 16 – 14.78 14.78 20 11.18 11.18 0.15 x 2 = 0.30 0.5 10 10 10 12.51 12.51 20 9.25 9.25 0.15 x 3 = 0.45 0.5 13 10 10 12.85 12.85 20 9.52 9.52 0.15 x 3 = 0.45 0.5 16 10 10 13.24 13.24 20 9.83 9.83 0.15 x 3 = 0.45 0.5 13 13 10 13.24 13.24 20 9.83 9.83 0.15 x 3 = 0.45 0.5 16 13 10 13.24 13.24 20 9.83 9.83 0.15 x 3 = 0.45 0.5 13 13 13 13.24 13.24 20 9.83 9.83 0.15 x 3 = 0.45 0.5 16 16 10 13.58 13.58 20 10.10 10.10 0.15 x 3 = 0.45 0.5 16 13 13 13.58 13.58 20 10.10 10.10 0.15 x 3 = 0.45 0.5 16 16 13

50 or 60 230–1 198 264

13.90 13.90 20 10.36 10.36 0.15 x 3 = 0.45 0.5

NOTE :

Indoor temp. (°C) 20 — Outdoor temp. (°C) 7 6

DB WB

– 25 –

2. REFRIGERANT R410A

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

The working pressure of the new refrigerant R410A is 1.6 times higher than conventional refrigerant (R22). The refrigerating oil is also changed in accordance with change of refrigerant, so be careful that water, dust, and existing refrigerant or refrigerating oil are not entered in the refrigerant cycle of the air conditioner using the new refrigerant during installation work or servicing time.

The next section describes the precautions for air conditioner using the new refrigerant. Conforming to contents of the next section together with the general cautions included in this manual, perform the correct and safe work.

2-1. Safety During Installation/Servicing

As R410A’s pressure is about 1.6 times higher than that of R22, improper installation/servicing may cause a serious trouble. By using tools and materials exclusiv e for R410A, it is necessary to carry out installation/servicing safely while taking the following precautions into consideration.

(1) Never use refrigerant other than R410A in an air

conditioner which is designed to operate with R410A.

If other refrigerant than R410A is mixed, pressure in the refrigeration cycle becomes abnormally high, and it may cause personal injury, etc. by a rupture.

(2) Confirm the used refrigerant name, and use

tools and materials exclusiv e for the refrigerant R410A.

The refrigerant name R410A is indicated on the visible place of the outdoor unit of the air conditioner using R410A as refrigerant. To prevent mischarging, the diameter of the service port differs from that of R22.

(3) If a refrigeration gas leakage occurs during

installation/servicing, be sure to ventilate fully. If the refrigerant gas comes into contact with fire,

a poisonous gas may occur.

(4) When installing or removing an air conditioner,

do not allow air or moisture to remain in the refrigeration cycle. Otherwise, pressure in the refrigeration cycle may become abnormally high so that a rupture or personal injury may be caused.

(5) After completion of installation work, check to

make sure that there is no refrigeration gas leakage.

If the refrigerant gas leaks into the room, coming into contact with fire in the fan-driven heater, space heater, etc., a poisonous gas may occur.

(6) When an air conditioning system charged with a

large volume of refrigerant is installed in a small room, it is necessary to exercise care so that, even when refrigerant leaks , its concentration does not exceed the marginal level.

If the refrigerant gas leakage occurs and its concentration exceeds the marginal level, an oxygen starvation accident may result.

(7) Be sure to carry out installation or removal

according to the installation manual. Improper installation may cause refrigeration

trouble, water leakage, electric shock, fire, etc.

(8) Unauthorized modifications to the air conditioner

may be dangerous. If a breakdown occurs please call a qualified air conditioner technician or electrician.

Improper repair’s may result in water leakage, electric shock and fire, etc.

2-2. Refrigerant Piping Installation

2-2-1. Piping Materials and Joints Used

For the refrigerant piping installation, copper pipes and joints are mainly used. Copper pipes and joints suitable for the refrigerant must be chosen and installed. Furthermore, it is necessary to use clean copper pipes and joints whose interior surfaces are less affected by contaminants.

(1) Copper Pipes

It is necessary to use seamless copper pipes which are made of either copper or copper alloy and it is desirable that the amount of residual oil is less than 40 mg/10 m. Do not use copper pipes having a collapsed, deformed or discolored portion (especially on the interior surface).

Otherwise, the expansion v alve or capillary tube may become blocked with contaminants.

As an air conditioner using R410A incurs pressure higher than when using R22, it is necessary to choose adequate materials.

Thicknesses of copper pipes used with R410A are as shown in Table 2-2-1. Never use copper pipes thinner than 0.8 mm even when it is available on the market.

– 26 –

Table 2-2-1 Thicknesses of annealed copper pipes

Thickness (mm)

Nominal diameter Outer diameter (mm)

1/4 6.35 3/8 9.52 1/2 12.70

(2) Joints

For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants.

a) Flare Joints

Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm. In such a case, socket joints can be used.

Sizes of flare pipe ends, flare joint ends and flare nuts are as shown in Tables 2-2-3 to 22-6 below .

R410A R22

0.80 0.80

b) Socket Joints

Socket joints are such that they are brazed for connections, and used mainly f or thick pipings whose diameter is larger than 20 mm.

Thicknesses of socket joints are as shown in Table 2-2-2.

Table 2-2-2 Minimum thicknesses of socket joints

Nominal diameter

1/4 3/8 1/2

Reference outer diameter of

copper pipe jointed (mm)

2-2-2. Processing of Piping Materials

When performing the refrigerant piping installation, care should be taken to ensure that water or dust does not enter the pipe interior, that no other oil other than lubricating oils used in the installed air conditioner is used, and that refrigerant does not leak. When using lubricating oils in the piping processing, use such lubricating oils whose water content has been removed. When stored, be sure to seal the container with an airtight cap or any other cover.

Minimum joint thickness (mm)

6.35

9.52

12.70

(1) Flare Processing Procedures and Precautions

a) Cutting the Pipe

By means of a pipe cutter, slowly cut the pipe so that it is not deformed.

b) Removing Burrs and Chips

If the flared section has chips or burrs, refrigerant leakage may occur. Carefully remove all b urrs and clean the cut surface before installation.

0.50

0.60

0.70

– 27 –

c) Insertion of Flare Nut d) Flare Processing

Make certain that a clamp bar and copper pipe have been cleaned.

By means of the clamp bar, perform the flare processing correctly.

Use either a flare tool for R410A or conventional flare tool.

Table 2-2-3 Dimensions related to flare processing for R410A

Flare processing dimensions differ according to the type of flare tool. When using a conventional flare tool, be sure to secure “dimen- sion A” by using a gauge f or size adjust- ment.

ØD

Fig. 2-2-1 Flare processing dimensions

Nominal

diameter

1/4 3/8 1/2

Nominal

diameter

1/4 3/8 1/2

Outer

diameter

(mm)

6.35

9.52

12.70

Thickness

(mm)

0.8

Flare tool for

R410A clutch type

0 to 0.5 1.0 to 1.5 1.5 to 2.0 0 to 0.5 1.0 to 1.5 1.5 to 2.0 0 to 0.5 1.0 to1.5 2.0 to 2.5

Table 2-2-4 Dimensions related to flare processing for R22

Outer

diameter

(mm)

6.35

9.52

12.70

Thickness

(mm)

0.8

Flare tool for

R22 clutch type

0 to 0.5 0.5 to 1.0 1.0 to 1.5 0 to 0.5 0.5 to 1.0 1.0 to 1.5 0 to 0.5 0.5 to1.0 1.5 to 2.0

A (mm)

Conventional flare tool

Clutch type Wing nut type

A (mm)

Conventional flare tool

Clutch type Wing nut type

Nominal diameter

1/4 3/8 1/2

Table 2-2-5 Flare and flare nut dimensions for R410A

Outer diameter

(mm)

6.35

9.52

12.70

Thickness

(mm)

0.8

Dimension (mm)

ABCD

9.1 9.2 6.5 13

13.2 13.5 9.7 20

16.6 16.0 12.9 23

– 28 –

Flare nut

width

(mm)

17 22 26

Table 2-2-6 Flare and flare nut dimensions for R22

Nominal

diameter

1/4 3/8 1/2

Outer diameter

(mm)

6.35

9.52

12.70

Thickness

(mm)

0.8

45˚ to 46˚

Dimension (mm)

ABCD

9.0 9.2 6.5 13

13.0 13.5 9.7 20

16.2 16.0 12.9 20

B A

43˚ to 45˚

Flare nut

width

(mm)

17 22 24

Fig. 2-2-2 Relations between flare nut and flare seal surface

(2) Flare Connecting Procedures and Precautions

a) Make sure that the flare and union portions

do not have any scar or dust, etc.

b) Correctly align the processed flare surface

with the union axis.

c) Tighten the flare with designated torque by

means of a torque wrench. The tightening torque for R410A is the same as that for conventional R22. Incidentally, when the torque is weak, the gas leakage may occur.

Table 2-2-7 Tightening torque of flare for R410A [Reference values]

Nominal

diameter

Outer diameter

(mm)

Note :

When applying oil to the flare surface, be sure to use oil designated by the manufacturer. If any other oil is

used, the lubricating oils may deteriorate and cause the compressor to burn out.

Tightening torque

N•m (kgf•cm)

When it is strong, the flare nut may crack and may be made non-removable. When choosing the tightening torque, comply with values designated by manufacturers. Tab le 2-2-7 shows reference v alues.

Tightening torque of torque

wrenches available on the market

N•m (kgf•cm)

1/4 3/8 1/2

6.35

9.52

12.70

14 to 18 (140 to 180) 33 to 42 (330 to 420) 50 to 62 (500 to 620)

– 29 –

16 (160), 18 (180)

42 (420) 55 (550)

2-3. Tools

2-3-1. Required Tools

The service port diameter of packed valve of the outdoor unit in the air conditioner using R410A is changed to prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.

The used refrigerating oil is changed, and mixing of oil may cause a trouble such as gener ation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.

(1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22)) (2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22) (3) Tools commonly used for R410A and for conventional refrigerant (R22) The table below shows the tools exclusive for R410A and their interchangeability.

Tools exclusive for R410A (The following tools for R410A are required.)

Tools whose specifications are changed for R410A and their interchangeability

No.

① ② ③

④ ⑤

⑥ ⑦ ⑧

⑨ ⑩

Used tool

Flare tool Copper pipe gauge for

adjusting projection margin

Torque wrench (For Ø12.7)

Gauge manifold Charge hose

Vacuum pump adapter Electronic balance for

refrigerant charging Refrigerant cylinder Leakage detector Charging cylinder

Usage

Pipe flaring Flaring by conventional

flare tool

Connection of flare nut

Evacuating, refrigerant charge, run check, etc.

Vacuum evacuating Refrigerant charge Refrigerant charge

Gas leakage check Refrigerant charge

air conditioner installation

Existence of new equipment for R410A

Yes

Yes Yes Yes

Yes

(Note 2)

R410A

Whether conventional equipment can be used

(Note 1)

× × ×

× ×

Conventional air

conditioner installation

Whether new equipment can be used with conventional refrigerant

○

(Note 1)

○ ○

○

(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection

margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.

(Note 2) Charging cylinder for R410A is being currently developed.

General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipments which serve also f or R22 are necessary. as the general tools.

(1) Vacuum pump

Use vacuum pump by

attaching vacuum pump adapter. (2) Torque wrench (For Ø6.35) (3) Pipe cutter

(4) Reamer (5) Pipe bender (6) Level vial (7) Screwdriver (+, –) (8) Spanner or Monkey wrench

(9) Hole core drill (Ø65) (10)Hexagon wrench

(Opposite side 4mm) (11)Tape measure (12)Metal saw

Also prepare the following equipments for other installation method and run check. (1) Clamp meter (2) Thermometer

(3) Insulation resistance tester (4) Electroscope

– 30 –

2-4. Recharging of Refrigerant

When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps.

Recover the refrigerant, and check no refrigerant remains in the equipment.

Connect the charge hose to packed valve service port at the outdoor unit’s gas side.

When the compound gauge’s pointer has indicated –0.1 Mpa (–76 cmHg), place the handle Low in the fully closed position, and turn off the vacuum pump’s power switch.

Connect the charge hose of the vacuum pump adapter.

Open fully both packed valves at liquid and gas sides.

Place the handle of the gauge manifold Low in the fully opened position, and turn on the vacuum pump’s power switch. Then, evacuating the refrigerant in the cycle.

Never charge refrigerant exceeding the specified amount.

If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.

Do not carry out additional charging.

Keep the status as it is for 1 to 2 minutes, and ensure that the compound gauge’s pointer does not return.

Set the refrigerant cylinder to the electronic balance, connect the connecting hose to the cylinder and the connecting port of the electronic balance, and charge liquid refrigerant.

(For refrigerant charging, see the figure below.)

When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high pressure, and may cause a rupture or personal injury.

(INDOOR unit)

Refrigerant cylinder (With siphon pipe)

Check valve

Open/Close valve for charging

Electronic balance for refrigerant charging

Fig. 2-4-1 Configuration of refrigerant charging

(Liquid side)

(Gas side)

– 31 –

(OUTDOOR unit)

Opened

Closed

Service port

Be sure to make setting so that liquid can be charged.

When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.

It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant. Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the

cylinder upside down if cylinder is not equipped with siphon.

[ Cylinder with siphon ] [ Cylinder without siphon ]

Refrigerant

cylinder

Gauge manifold

OUTDOOR unit

Gauge manifold

cylinder

Refrigerant

OUTDOOR unit

Electronic

balance

2-5. Brazing of Pipes

2-5-1. Materials for Brazing

(1) Silver brazing filler

Silver brazing filler is an alloy mainly composed of silver and copper. It is used to join iron, copper or copper alloy, and is relatively expen-sive though it excels in solderability.

(2) Phosphor bronze brazing filler

Phosphor bronze brazing filler is generally used to join copper or copper alloy.

(3) Low temperature brazing filler

Low temperature brazing filler is generally called solder, and is an alloy of tin and lead. Since it is weak in adhesive strength, do not use it for refrigerant pipes.

Siphon

Electronic

balance

Fig. 2-4-2

R410A refrigerant is HFC mixed refrigerant. Therefore, if it is charged with gas, the composition of the charged refrigerant changes and the characteristics of the equipment varies.

Q Phosphor bronze brazing filler tends to react

with sulfur and produce a fragile compound water solution, which may cause a gas leakage. Therefore, use any other type of brazing filler at a hot spring resort, etc., and coat the surface with a paint.

R When performing brazing again at time of

servicing, use the same type of brazing filler.

2-5-2. Flux

(1) Reason why flux is necessary

• By removing the oxide film and any foreign

matter on the metal surface, it assists the flow of brazing filler.

• In the brazing process, it prevents the metal

surface from being oxidized.

• By reducing the brazing filler’s surface tension,

the brazing filler adheres better to the treated metal.

– 32 –

(2) Characteristics required for flux

Nitrogen gas

cylinder

Pipe

Flow meter

Stop valve

From Nitrogen cylinder

Nitrogen gas

Rubber plug

• Activated temperature of flux coincides with the

brazing temperature.

• Due to a wide effective temperature range, flux

is hard to carbonize.

• It is easy to remove slag after brazing.

• The corrosive action to the treated metal and

brazing filler is minimum.

• It excels in coating performance and is harm-

less to the human body.

As the flux works in a complicated manner as described above, it is necessary to select an adequate type of flux according to the type and shape of treated metal, type of brazing filler and brazing method, etc.

(3) Types of flux

• Noncorrosive flux

Generally, it is a compound of borax and boric acid.

It is effective in case where the brazing temperature is higher than 800°C.

• Activated flux

Most of fluxes generally used for silver brazing are this type.

It features an increased oxide film removing capability due to the addition of compounds such as potassium fluoride, potassium chloride and sodium fluoride to the borax-boric acid compound.

2-5-3. Brazing

As brazing work requires sophisticated techniques, experiences based upon a theoretical knowledge, it must be performed by a person qualified.

In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to proceed with brazing while letting dry Nitrogen gas

(N2) flow.

Never use gas other than Nitrogen gas.

(1) Brazing method to prevent oxidation

Attach a reducing valve and a flow-meter to

the Nitrogen gas cylinder. Use a copper pipe to direct the piping mate-

rial, and attach a flow-meter to the cylinder. Apply a seal onto the clearance between the

piping material and inserted copper pipe for Nitrogen in order to prevent backflow of the Nitrogen gas.

When the Nitrogen gas is flowing, be sure to

keep the piping end open. Adjust the flow rate of Nitrogen gas so that it

is lower than 0.05 m³ /Hr or 0.02 MPa (0.2kgf/ cm²) by means of the reducing valve.

After performing the steps above, keep the

Nitrogen gas flowing until the pipe cools down to a certain extent (temperature at which pipes are touchable with hands).

Remove the flux completely after brazing.

(4) Piping materials for brazing and used braz-

ing filler/flux

Piping

material

Copper - Copper

Copper - Iron

Iron - Iron

Do not enter flux into the refrigeration cycle.

When chlorine contained in the flux remains

within the pipe, the lubricating oil deteriorates. Therefore, use a flux which does not contain chlorine.

When adding water to the flux, use water

which does not contain chlorine (e.g. distilled water or ion-exchange water).

Remove the flux after brazing.

Used brazing

filler

Phosphor copper

Silver

Do not use

Paste flux

Vapor flux

Used

flux

Fig. 2-5-1 Prevention of oxidation during brazing

– 33 –

3. CONSTRUCTION VIEWS

3-1. Indoor Unit

RAS-M10UKV-E, RAS-M13UKV-E, RAS-M16UKV-E RAS-M10UKCV-E, RAS-M13UKCV-E, RAS-M16UKCV-E

Front panel

Back body

660

Knock out system

Air inlet

Air filter

790

Heat exchanger

275

Air outlet

120 80

590

Hanger

208

Knock out system

660

Drain hose (0.54m)

Hanger

Minimum distance to ceiling

275

170 or more

320

620

235 235

215 215

Minimum distance to ceiling

65 or more

Hanger

– 34 –

Connecting pipe (0.43m) (Flare ∅6.35)

Connecting pipe (0.33m)

(For 10,13 series ; Flare ∅9.52 For 16 series ; Flare ∅12.7)

Hanger

For stud bolt (∅6)

Hanger

150150 160160

Installation plate outline

Center line

For stud bolt (∅8~∅10)

Minimum distance to ceiling

170 or more

9090

4519040

160

57 18

Wireless remote control

3-2. Outdoor Unit

RAS-4M27YAV-E/RAS-4M27YACV-E/RAS-3M26YAV-E

Anchor bolt (4-Ø12 x 17 hole)

400

Knock out Ø20 x 60hole

17.5

365

(For anchor bolt)

17.5

150 600

Fan guard Handle

795

410

Outdoor air temperature sensor

Ø25 hole

Ø8 hole

900

Ø510

280

116 87 12

5050

150

3-Ø3. 5 hole

4040

2112

120

Knock out

514 38

320

164

Liquid valve Gas valve

Service port

535353535390 5353

4 Units Multi Model Only

D unit

C unit

B unit

A unit

Connecting pipe port (Ø6.35) Connecting pipe port (Ø9.52) Connecting pipe port (Ø6.35) Connecting pipe port (Ø9.52) Connecting pipe port (Ø6.35) Connecting pipe port (Ø9.52) Connecting pipe port (Ø6.35) Connecting pipe port (Ø12.7)

365

Air inlet

100

Handle

600

100

Air outlet

Mounting dimension of anchor bolt

view

Air inlet

Visible outline of the product

600

Ø8-Ø10 anchor bolt

– 35 –

4. WIRING DIAGRAM

4-1. Indoor Unit

RAS-M10UKV-E, RAS-M13UKV-E, RAS-M16UKV-E RAS-M10UKCV-E, RAS-M13UKCV-E, RAS-M16UKCV-E

Table 4-1-1 Simple check points for diagnosing faults

Check items

OPERATION

INDICATOR

TERMINAL

BLOCK

FUSE

6.3A

DC 5V

DC 12V

DC 35V

(DC310 ~ 340V)

Refer to the service data for the detailed failure diagnosis.

Check to see if the OPERATION indicator goes on and off when the main switch or breaker is turned on. (Check the primary and secondary voltage of transformer.)

Check for power supply voltage between (Check the primary and secondary voltage of transformer.) Check for fluctuate voltage between

Check to see if the fuse blows out. (Check the R04 of the varistor.)

Check the voltage at the No.4 pin on CN13 connector of the infrared receiver. (Check the transformer and the power supply circuit of the rated voltage.)

Check for voltage at the while lead of louver motor. (Check the transformer and the power supply circuit of the rated voltage.)

Check the voltage at the No.1 pin on CN10 connector. (Check the DB01, R05 and C03.)

Diagnosis result

and



– . (DC 15 ~ 60V)



. (Refer to the name plate.)



– 36 –

Color

Identification

BRW : BROWN

RED : RED

WHI : WHITE YEL : YELLOW BLU : BLUE

BLK : BLACK GRY : GRAY PNK : PINK

ORN : ORANGE

GRN : GREEN &

&YEL YELLOW

GRN : GREEN

4-2. Outdoor Unit

RAS-4M27YAV-E/RAS-4M27YACV-E/RAS-3M26YAV-E

NOTE

IGBT : Insulated Gate Bipolar

PMV : Pulse Modulating Valve TD : Discharge Temp. sensor TGa to TGd : Temp. sensor at A to D unit

TO : Outdoor Temp. sensor TE : Evaporator Temp. sensor TS : SuctionTemp. sensor

1 : 4 Units Multi model only

2 : Heat Pump model only

Thermostat for compressor

4-way valve coil

Fan motor

PMV

ORN ORN

Transistor

gas side

212

313

P501

P500

CN705

4 3

CN301

CN300

WHI

CN704 BLU

CN703 RED

CN702 WHI

CN701 YEL

P07 P03 P04

RED

SUB P.C. Board

(MCC-818)

circuit

Photo coupler

Reactor (Sub)

ORN

Fan

F300 Fuse

3.15A

CN802

CN608

CN607

CN606

CN605

CN604

CN603

CN602

CN601

CN302

CN800

CN303

CN501

F500 Fuse

6.3A

212

Compressor

212

3 2 131

212

3 2 131

212

313

5 5 5 5 4 4 4 4 3 3 3 3 212

212

313

P05 P06

PNK YEL BLK

BLU

GRN

BRN

YEL

BLU

BLK

RED

212

BLU

YEL

BLK

WHI BLU RED PNK

PUR ORN

WHI

RED

WHI

BLK TGd

TGc

TGb

TGa

313

212

5 5

313

WHI

Color Identification

BLK BLU RED GRY PNK GRN

CN09

CN10

CN11

BLACK

BLUE

RED

GRAY

PINK

GREEN

T03 CT

T04 CT

P.C. Board

(MCC-1359)

F04 Fuse

3.15A

Power relay

CN04

CN06

CN05

CN13

Varistor

F01 Fuse 30A

CN01 CN02 CN03

C13

C12

C11

C10

RY01

R05

R06

T02 CT

L01

WHI

F02 Fuse, 15A

L02

absorber

Surge

BLK

WHI BRN ORN YEL PUR

P20

P19

P18

P17

P10

P11

P13

P12

P09

P08

P15

P14

WHITE

BROWN

ORANGE

YELLOW

PURPLE

BU EU BV EV BW EW BX BY BZ

–

G E A

–

~ +

212

IGBT

module

Q200

YEL

BLU

Converter

module

DB01

ORN

GRY

Reactor

(Main)

Reactor

(Main)

1 2 3

Indoor

unit A

1 2 3

Indoor

unit B

1 2 3

Indoor

unit C

1 2 3

Indoor unit D

– 37 –

Terminal block

BLK

L N

Power supply 50/60Hz AC 220–240V

5. SPECIFICATIONS OF ELECTRICAL PARTS

5-1. Indoor Unit

RAS-M10UKV-E, RAS-M13UKV-E, RAS-M16UKV-E RAS-M10UKCV-E, RAS-M13UKCV-E, RAS-M16UKCV-E

No. Parts name Type Specifications

1 Fan motor (for indoor) ICF-35-19-4 DC 340V, 30W 2 Thermo. sensor (TA-sensor) ( – ) 10kΩ at 25°C

3 DC-DC transformer (T01) SWT-70 DC 390V, Secondary DC 15V, 12V, 7V

4 Microcomputer ( – )

Heat exchanger sensor

(TC-sensor)

6 Line filter (L01) SS11V-06270 27mH, AC 0.64A

7 Diode (DB01) D3SBA60 4A, 600V

8 Capacitor (C03) KMH450VNSN120M25C 120µF, 450V

9 Fuse (F01) FCU250V3.15A T3.15A, 250V

10 Power supply IC (IC01) STR-L472

( – ) 10kΩ at 25°C

11 Varistor (R21, R109) 15G561K 560V 12 Resistor (R01) RF-5TK4R7 4.7Ω, 5W

13 Louver motor MP24GA Output (Rated) 1W, 16 poles, 1 phase DC12V

– 38 –

5-2. Outdoor Unit

RAS-4M27YAV-E, RAS-4M27YACV-E, RAS-3M26YAV-E

No.

14 15

17 18 19 20

22 23

Parts name

SC coil (Noise filter) (L01) SC coil (Noise filter) (L02)

DC-DC transformer

Outside fan motor

Relay (4-way valve)

Relay (Power relay)

Discharge temp. sensor (TD-sensor)

Outside air temp. sensor (TO-sensor)

Temp. sensor at A room gas side (TGA-sensor)

Temp. sensor at B room gas side (TGB-sensor)

Temp. sensor at C room gas side (TGC-sensor)

Temp. Sensor at D room gas side (TGD-sensor)

Evaporator temp. sensor (TE-sensor)

Suction temp. sensor (TS-sensor)

Terminal block (6P) Terminal block (3P)

Fuse

Electrolytic capacitor Transistor module Compressor Compressor thermo.

Converter module

Reactor (Main) Reactor (Sub)

For protection of switching power source (F04) For protection of converter module breakage For protection of inverter input overcurrent For protection of switching power source (F300) For protection of power source

Model name

SC-20-01J-A

SC-20-S03J

SWT-43

ICF-140-60-1

G5N-1A

G4A-1A-PE

(Inverter attached)

— —

LLQ2G761KHUATF

6MBI40SS-060-01

DA220A2F-20L

US622KXTMQO

MP7004

CH-47-Z-K CH-43-Z-K

Rating

AC2 50V, 20A, 0.15mH AC 250V, 20A, 0.3mH Primary side DC 280V

Secondary side :

7.5V x 1, 13V x 1

26.5V x 3, 16V x 1, 15V x 1 DC 140V, 60W Coil : DC 12V

Contact : 2A, AC250V Coil : DC 12V

Contact : 20A, AC250V 64kΩ (20°C)

10kΩ (25°C)

20A, AC 250V 20A, AC 250V

3.15A, AC 250V 15A, AC 250V 30A, AC 250V

3.15A, AC 250V

6.3A, AC 250V DC 400V, 760µF 600V, 40A 3 phases, 4 poles, 2000W OFF : 125 ± 4°C, ON : 90 ± 5°C Diode : 600V, 20A

IGBT : 600V, 40A L = 8mH, 16A L = 10mH, 1A

NOTE :*1 : 4 unit multi model only

2 : Heat pump model only

– 39 –

6. REFRIGERANT CYCLE DIAGRAM

RAS-M10UKV-E, RAS-M13UKV-E, RAS-M16UKV-E RAS-4M27YAV-E

D room

Temp. measurement

C roomToB room

Indoor unit A

Evaporator

TCa

D room

C roomToB room

Connecting pipe Thickness : 0.8mm Ø12.7 : RAS-M16UKV-E

Ø9.52 : RAS-M10UKV-E RAS-M13UKV-E

Pressure

measurement Gauge attaching port Vacuum pump connecting port

TGd TGc TGb

Packed valve (Gas side) (Ø12.7)

Cross flow fan

Connecting pipe Thickness : 0.8mm Ø6.35

Sectional shape of heat insulator

TGa

Strainer

Allowable height

(Ø6.35)(Ø9.52) (Ø9.52) (Ø9.52) (Ø12.7) (Ø6.35) (Ø6.35) (Ø6.35)

Pulse modulating valve at liquid side (SKV18D26)

Packed valve (Liquid side) (Ø9.52)

Per 1 unit Max. : 25m Min. : 2m

Total Max. : 70m

difference : 15m

Allowable pipe length

Accumulating tank 1500cc

Temp. measurement

Propeller fan

Outdoor unit

Muffler Ø25 x 160L

Compressor DA220A2F-20L

Refrigerant amount : 2.4kg (R410A)

NOTE : Gas leak check position Refrigerant flow (Cooling)

Refrigerant flow (Heating)

NOTE

• The maximum pipe length of this air conditioner is 70 m. The additional charging of refrigerant is unnecesary

because this conditioner is designed with charge-less specification.

• Connection of only one indoor unit is unavailable. Two or more indoor units should be connected.

– 40 –

RAS-M10UKCV-E, RAS-M13UKCV-E, RAS-M16UKCV-E RAS-4M27YACV-E

Connecting pipe Thickness : 0.8mm Ø12.7 : RAS-M16UKCV-E

Ø9.52 : RAS-M10UKCV-E RAS-M13UKCV-E

Temp. measurement

D room

C roomToB room

TGd TGc TGb

Indoor unit A

Evaporator

Cross flow fan

Connecting pipe Thickness : 0.8mm Ø6.35

Sectional shape of heat insulator

TGa

Strainer

TCa To

D room

(Ø6.35)(Ø9.52) (Ø9.52) (Ø9.52) (Ø12.7) (Ø6.35) (Ø6.35) (Ø6.35)

C roomToB room

Per 1 unit Max. : 25m Min. : 2m

Total Max. : 70m

Allowable height

difference : 15m

Allowable pipe length

Pulse modulating valve at liquid side (SKV18D26)

Pressure

measurement Gauge attaching port Vacuum pump connecting port

Accumulating tank 1500cc

Temp. measurement

Packed valve (Gas side) (Ø12.7)

Propeller fan

Outdoor unit

Packed valve (Liquid side) (Ø9.52)

Muffler Ø25 x 160L x

Compressor DA220A2F-20L

Refrigerant amount : 2.2kg (R410A)

NOTE : Gas leak check position Refrigerant flow

NOTE

• The maximum pipe length of this air conditioner is 70 m. The additional charging of refrigerant is unnecesary

because this conditioner is designed with charge-less specification.

– 41 –

RAS-M10UKV-E, RAS-M13UKV-E, RAS-M16UKV-E RAS-3M26YAV-E

Connecting pipe Thickness : 0.8mm Ø12.7 : RAS-M16UKV-E

Ø9.52 : RAS-M10UKV-E RAS-M13UKV-E

C room

TGc TGb

Temp. measurement

B room

TGa

T1 TCa

Indoor unit A

Evaporator

Cross flow fan

Connecting pipe Thickness : 0.8mm Ø6.35

Sectional shape of heat insulator

Strainer

C room

(Ø6.35)(Ø9.52) (Ø9.52) (Ø12.7) (Ø6.35) (Ø6.35)

B room

Per 1 unit Max. : 25m Min. : 2m

Total Max. : 50m

Allowable height

difference : 15m

Allowable pipe length

Pulse modulating valve at liquid side (SKV18D26)

Pressure

measurement Gauge attaching port Vacuum pump connecting port

Accumulating tank 1500cc

Packed valve (Gas side) (Ø12.7)

Temp. measurement

Muffler Ø25 x 160L

Compressor DA220A2F-20L

Propeller fan

Outdoor unit

Packed valve (Liquid side) (Ø9.52)

Refrigerant amount : 2.4kg (R410A)

NOTE : Gas leak check position Refrigerant flow (Cooling)

Refrigerant flow (Heating)

NOTE

• The maximum pipe length of this air conditioner is 50 m. The additional charging of refrigerant is unnecesary

because this conditioner is designed with charge-less specification.

• Connection of only one indoor unit is unavailable. Two or more indoor units should be connected.

– 42 –

6-1. Operation Data

Outdoor Unit : RAS-4M27YAV-E

Temp erat ur e

condition

Indoor Outdoor

27 /19 35 / –

No. of

units

1 unit

2 units

3 units

eratin

Operating combination

ABCD

10 –––0.8 to 1.0 9 to 11 45 to 47 High MED 22 13 –––0.7 to 0.9 8 to 10 46 to 48 High MED 35 16 –––0.6 to 0.8 7 to 9 47 to 49 High MED 45 10 10 ––0.8 to 1.0 10 to 12 47 to 49 High MED 42 13 10 ––0.8 to 1.0 10 to 12 48 to 50 High MED 46 16 10 ––0.8 to 1.0 10 to 12 49 to 51 High MED 50 13 13 ––0.8 to 1.0 10 to 12 50 to 52 High MED 54 16 13 ––0.7 to 0.9 9 to 11 51 to 53 High MED 58 16 16 ––0.7 to 0.9 9 to 11 52 to 54 High MED 62 10 10 10 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 13 10 10 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 16 10 10 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 13 13 10 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 16 13 10 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 13 13 13 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60

(Unit)

Standard

ressure

P (MPa)

Heat exchanger

pipe temp.

T1 (°C) T2 (°C)

Indoor

fan

Outdoor

fan

Com

revolution

(rps)

ressor

16 16 10 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 16 13 13 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 16 16 13 – 0.8 to 1.0 12 to 14 51 to 53 High MED 60 16 16 16 – 0.8 to 1.0 12 to 14 51 to 53 High MED 60

4 units

10 10 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

13 10 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

16 10 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

13 13 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

16 13 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

13 13 13 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

16 13 13 10 0.9 to 1.1 12 to 14 51 to 53 High MED 62

16 16 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 62

NOTES :

Model of Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

NOTES :

(1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bend.

(Thermistor thermometer)

(2) Connecting piping condition : 5 meters x 4 units (5m/each indoor unit)

– 43 –

Outdoor Unit : RAS-4M27YAV-E

Temp erat ur e

condition

Indoor Outdoor

20 / – 7 / 6

No. of

units

1 unit

2 units

3 units

eratin

Operating combination

ABCD

10 –––2.7 to 2.9 44 to 46 2 to 4 High MED 41 13 –––3.2 to 3.4 52 to 54 2 to 4 High MED 52 16 –––3.6 to 3.9 53 to 55 2 to 4 High MED 56 10 10 ––2.7 to 2.9 45 to 47 0 to 2 High MED 62 13 10 ––2.8 to 3.0 45 to 47 0 to 2 High MED 64 16 10 ––2.9 to 3.1 46 to 48 0 to 2 High MED 66 13 13 ––2.9 to 3.1 46 to 48 0 to 2 High MED 67 16 13 ––3.0 to 3.2 47 to 49 –1 to 1 High MED 69 16 16 ––3.1 to 3.3 48 to 50 –1 to 1 High MED 71 10 10 10 – 2.3 to 2.5 38 to 40 –1 to 1 High MED 72 13 10 10 – 2.3 to 2.5 38 to 40 –1 to 1 High MED 72 16 10 10 – 2.3 to 2.5 38 to 40 –1 to 1 High MED 72 13 13 10 – 2.3 to 2.5 38 to 40 –1 to 1 High MED 73 16 13 10 – 2.3 to 2.5 38 to 40 –1 to 1 High MED 73 13 13 13 – 2.3 to 2.5 38 to 40 –1 to 1 High MED 73

(Unit)

Standard

ressure

P (MPa)

Heat exchanger

pipe temp.

T1 (°C) T2 (°C)

Indoor

fan

Outdoor

fan

Com

revolution

(rps)

ressor

16 16 10 – 2.3 to 2.5 38 to 40 –1 to 1 High MED 73 16 13 13 – 2.5 to 2.7 37 to 39 –2 to 0 High MED 74 16 16 13 – 2.5 to 2.7 37 to 39 –2 to 0 High MED 74 16 16 16 – 2.5 to 2.7 37 to 39 –2 to 0 High MED 74

4 units

10 10 10 10 2.0 to 2.2 33 to 35 –2 to 0 High MED 72 13 10 10 10 2.0 to 2.2 33 to 35 –2 to 0 High MED 72 16 10 10 10 2.0 to 2.2 33 to 35 –2 to 0 High MED 73 13 13 10 10 2.0 to 2.2 33 to 35 –2 to 0 High MED 73 16 13 10 10 2.0 to 2.2 33 to 35 –2 to 0 High MED 73 13 13 13 10 2.0 to 2.2 33 to 35 –2 to 0 High MED 73 16 13 13 10 2.0 to 2.2 33 to 35 –2 to 0 High MED 74 16 16 10 10 2.0 to 2.2 33 to 35 –2 to 0 High MED 74

NOTES :

Model of Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

NOTES :

(1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bend.

(Thermistor thermometer)

(2) Connecting piping condition : 5 meters x 4 units (5m/each indoor unit)

– 44 –

Outdoor Unit : RAS-4M27YACV-E

Temp erat ur e

condition

Indoor Outdoor

27 /19 35 / –

No. of

units

1 unit

2 units

3 units

eratin

Operating combination

ABCD

10 –––0.8 to 1.0 9 to 11 45 to 47 High MED 22 13 –––0.7 to 0.9 8 to 10 46 to 48 High MED 35 16 –––0.6 to 0.8 7 to 9 47 to 49 High MED 45 10 10 ––0.8 to 1.0 10 to 12 47 to 49 High MED 42 13 10 ––0.8 to 1.0 10 to 12 48 to 50 High MED 46 16 10 ––0.8 to 1.0 10 to 12 49 to 51 High MED 50 13 13 ––0.8 to 1.0 10 to 12 50 to 51 High MED 54 16 13 ––0.7 to 0.9 9 to 11 51 to 53 High MED 58 16 16 ––0.7 to 0.9 9 to 11 52 to 54 High MED 62 10 10 10 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 13 10 10 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 16 10 10 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 13 13 10 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 16 13 10 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60 13 13 13 – 0.8 to 1.0 11 to 13 51 to 53 High MED 60

(Unit)

Standard

ressure

P (MPa)

Heat exchanger

pipe temp.

T1 (°C) T2 (°C)

Indoor

fan

Outdoor

fan

Com

revolution

(rps)

ressor

4 units

10 10 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

13 10 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

16 10 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

13 13 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

16 13 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

13 13 13 10 0.9 to 1.1 12 to 14 51 to 53 High MED 61

16 13 13 10 0.9 to 1.1 12 to 14 51 to 53 High MED 62

16 16 10 10 0.9 to 1.1 12 to 14 51 to 53 High MED 62

NOTES :

Model of Indoor unit 10 : RAS-M10UKCV-E, 13 : RAS-M13UKCV-E, 16 : RAS-M16UKCV-E

NOTES :

(1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bend.

(Thermistor thermometer)

(2) Connecting piping condition : 5 meters x 4 units (5m/each indoor unit)

– 45 –

Outdoor Unit : RAS-3M26YAV-E

Temp erat ur e

condition

Indoor Outdoor

27 /19 35 / –

No. of

units

1 unit

2 units

3 units

eratin

Operating combination

(Unit)

ABC

10 ––0.8 to 1.0 9 to 11 45 to 47 High MED 22 13 ––0.7 to 0.9 8 to 10 46 to 48 High MED 35 16 ––0.6 to 0.8 7 to 9 47 to 49 High MED 45 10 10 – 0.8 to 1.0 10 to 12 47 to 49 High MED 42 13 10 – 0.8 to 1.0 10 to 12 48 to 50 High MED 46 16 10 – 0.8 to 1.0 10 to 12 49 to 51 High MED 50 13 13 – 0.8 to 1.0 10 to 12 50 to 51 High MED 54 16 13 – 0.7 to 0.9 9 to 11 51 to 53 High MED 58 16 16 – 0.7 to 0.9 9 to 11 52 to 54 High MED 62

10 10 10 0.8 to 1.0 11 to 13 51 to 53 High MED 60

13 10 10 0.8 to 1.0 11 to 13 51 to 53 High MED 60

16 10 10 0.8 to 1.0 11 to 13 51 to 53 High MED 60

13 13 10 0.8 to 1.0 11 to 13 51 to 53 High MED 60

16 13 10 0.8 to 1.0 11 to 13 51 to 53 High MED 60

Standard

ressure

P (MPa)

Heat exchanger

pipe temp.

T1 (°C) T2 (°C)

Indoor

fan

Outdoor

fan

Com

revolution

(rps)

ressor

13 13 13 0.8 to 1.0 11 to 13 51 to 53 High MED 60

16 16 10 0.8 to 1.0 11 to 13 51 to 53 High MED 60

16 13 13 0.8 to 1.0 11 to 13 51 to 53 High MED 60

16 16 13 0.8 to 1.0 12 to 14 51 to 53 High MED 60

NOTES :

Model of Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

NOTES :

(1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bend.

(Thermistor thermometer)

(2) Connecting piping condition : 5 meters x 3 units (5m/each indoor unit)

– 46 –

Outdoor Unit : RAS-3M26YAV-E

Temp erat ur e

condition

Indoor Outdoor

27 / – 7 / 6

No. of

units

1 unit

2 units

3 units

eratin

Operating combination

(Unit)

ABC

10 ––2.6 to 2.8 44 to 46 2 to 4 High MED 40 13 ––3.3 to 3.5 52 to 54 1 to 3 High MED 50 16 ––3.5 to 3.7 55 to 57 1 to 3 High MED 53 10 10 – 2.7 to 2.9 45 to 47 0 to 2 High MED 62 13 10 – 2.8 to 3.0 45 to 47 0 to 2 High MED 63 16 10 – 2.9 to 3.1 46 to 48 0 to 2 High MED 65 13 13 – 2.9 to 3.1 46 to 48 0 to 2 High MED 66 16 13 – 3.1 to 3.3 47 to 49 0 to 2 High MED 68 16 16 – 3.3 to 3.5 50 to 52 0 to 2 High MED 70 10 10 10 2.3 to 2.5 38 to 40 –1 to 1 High MED 72 13 10 10 2.3 to 2.5 38 to 40 –1 to 1 High MED 72 16 10 10 2.3 to 2.5 38 to 40 –1 to 1 High MED 72 13 13 10 2.3 to 2.5 38 to 40 –1 to 1 High MED 73 16 13 10 2.3 to 2.5 38 to 40 –1 to 1 High MED 73

Standard

ressure

P (MPa)

Heat exchanger

pipe temp.

T1 (°C) T2 (°C)

Indoor

fan

Outdoor

fan

Com

revolution

(rps)

ressor

13 13 13 2.3 to 2.5 38 to 40 –1 to 1 High MED 73 16 16 10 2.3 to 2.5 38 to 40 –1 to 1 High MED 73 16 13 13 2.5 to 2.7 37 to 39 –2 to 0 High MED 74 16 16 13 2.5 to 2.7 37 to 39 –2 to 0 High MED 74

NOTES :

Model of Indoor unit 10 : RAS-M10UKV-E, 13 : RAS-M13UKV-E, 16 : RAS-M16UKV-E

NOTES :

(1) Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bend.

(Thermistor thermometer)

(2) Connecting piping condition : 5 meters x 3 units (5m/each indoor unit)

– 47 –

7. CONTROL BLOCK DIAGRAM

7-1. Indoor Unit

Heat Exchanger Sensor

Temperature Sensor

Infrared Rays Signal Receiver

Infrared

Rays

Remote

Control

Initiallizing Circuit

Clock Frequency Oscillator Circuit

Power Supply

Circuit

Noise Filter

Indoor Unit Control Panel

M.C.U.

Functions

• Louver Control

• 3-minute Delay at Restart for Compressor

• Motor Revolution Control

• Processing

(Temperature Processing)

• Timer

Outdoor unit

ON/OFF Signal

Relay Driver

Louver ON/OFF Signal

Louver Driver

Operation

Display

Timer

Display

Filter Sign

Display

Fan Only

Sign Display

Indoor Fan

Motor

Louver Motor

From Outdoor Unit

REMOTE CONTROLLER

RAS-M10UKV-E, RAS-M13UKV-E, RAS-M16UKV-E

(Heat pump model)

Infrared

Rays

Remote Controller

Operation (START/STOP)

Operation Mode Selection

AUTO, COOL, DRY, HEAT

Thermo. Setting

Fan Speed Selection

ON TIMER Setting

OFF TIMER Setting

Louver AUTO Swing

Relay RY04

Outdoor Unit

RAS-M10UKCV-E, RAS-M13UKCV-E, RAS-M16UKCV-E

(Cooling only model)

Infrared

Rays

Remote Controller

Operation (START/STOP)

Operation Mode Selection

AUTO, COOL, DRY, FAN ONLY

Thermo. Setting

Fan Speed Selection

ON TIMER Setting

OFF TIMER Setting

Louver AUTO Swing

Louver Direction Setting

ECONO.

Louver Direction Setting

ECONO.

– 48 –

7-2. Outdoor Unit (Inverter Assembly)

RAS-4M27YAV-E, RAS-4M27YACV-E, RAS-3M26YAV-E

A unit P.M.V.

B unit P.M.V.

C unit P.M.V.

D unit P.M.V.

4-Way valve Relay circuit

Outdoor

fan

motor

Driver

circuit of

P.M.V.

Inverter (DC AC)

Over current sensor

• Inverter outdoor frequency control

• A/D converter function

• P.M.V. control

• Discharge temp. control

• Error display

• Signal communication to MCU

• PWM synthesis function

Rotor position detect circuit

Gate drive circuit

Over current detect circuit

M.C.U

Clock frequency oscillator circuit 16MHz

Signal communication to MCU

Discharge temp. SensorGas side pipe temp. Sensor Suction temp. Sensor Evaporator temp. SensorOutdoor air temp. Sensor

MCC-818 (SUB-P.C. B)

A unit send/receive circuit

B unit send/receive circuit

C unit send/receive circuit

D unit send/receive circuit

Compressor

Noise filter

Input current sensor

Converter (AC DC)

Over current sensor

Inverter (DC

AC)

Output current sensor

P.M.V : Pulse modulating valve PWM : Pulse width modulation

Clock frequency oscillator circuit 10MHz

High power factor correction circuit

Over current detect circuit

Gate drive circuit

220–240V, 50/60Hz

MCC-1359 (MAIN-P.C. B)

M.C.U (DSP)

• PWM synthesis function

• Input current release control

• IGBT over current detect control

• High power factor correction control

• Signal communication to MCU

• Output current release control

• A/D converter function

IGBT : Insulated gate bipolar

transistor

DSP : Digital signal processor

NOTE :*1 : 4 unit multi model only *2 : Heat pump model only

– 49 –

8. OPERATION DESCRIPTION

8-1. Outline of Air Conditioner Control

This air conditioner is a capacity-variable type air conditioner, which uses DC motors for the indoor fan motors and the outdoor fan motor. And the capacityproportional control compressor which can change the motor speed in the range from 15 to 90 rps is mounted. The DC motor drive circuit is mounted to the indoor unit. The compressor and the inverter to control fan motor are mounted to the outdoor unit. The entire air conditioner is mainly controlled by the indoor unit controller.

The indoor unit controller drives the indoor fan motor based upon command sent from the remote controller, and transfers the operation command to the outdoor unit controller.

The outdoor unit controller receives operation command from the indoor unit side, and controls the outdoor fan and the pulse modulating valve.

Besides, detecting revolution position of the compressor motor, the outdoor unit controller controls speed of the compressor motor by controlling output voltage of the inverter and switching timing of the supply power (current transfer timing) so that motors drive according to the operation command. And then, the outdoor unit controller transfers reversely the operating status information of the outdoor unit to control the indoor unit controller.

As the compressor adopts four-pole brushless DC motor, the frequency of the supply power from inverter to compressor is two-times cycles of the actual number of revolution.

(1) Role of indoor unit controller

The indoor unit controller judges the operation commands from the remote controller and assumes the following functions.

• Judgment of suction air temperature of the

indoor heat exchanger by using the indoor temp. sensor.

• Temperature setting of the indoor heat ex-

changer by using heat exchanger sensor (Prevent-freezing control)

• Louver motor control

• Indoor fan motor operation control

• LED display control

• Transferring of operation command signal

(Serial signal) to the outdoor unit

• Reception of information of operation status

(Serial signal including outside temp. data) to the outdoor unit and judgment/display of error

(2) Role of outdoor unit controller

Receiving the operation command signal (Serial signal) from the indoor controller, the outdoor unit performs its role.

• Compressor operation

control

• Operation control of

outdoor fan motor

• P.M.V. control

• Detection of inverter input current and current

release operation

• Over-current detection and prevention opera-

tion to transistor module (Compressor stop function)

• Compressor and outdoor fan stop function

when serial signal is off (when the serial signal does not reach the board assembly of outdoor control by trouble of the signal system)

• Transferring of operation information (Serial

signal) from outdoor unit to indoor unit

• Detection of outdoor temperature and opera-

tion revolution control

• Defrost control in heating operation (Temp.

measurement by outdoor heat exchanger and control for 4-way valve and outdoor fan)

(3) Contents of operation command signal (Serial

signal) from indoor unit controller to outdoor unit controller

The following three types of signals are sent from the indoor unit controller.

• Operation mode set on the remote controller

• Compressor revolution command signal

defined by indoor temperature and set temperature (Correction along with variation of room temperature and correction of indoor heat exchanger temperature are added.)

• For these two types of signals ( [Operation

mode] and [Compressor revolution] ), the outdoor unit controller monitors the input current to the inverter, and performs the followed operation within the range that current does not exceed the allowable value.

• Temperature of indoor heat exchanger by

indoor heat exchanger sensor (Minimum revolution control)

Operations followed



to judgment of



serial signal from indoor side.



– 50 –

(4) Contents of operation command signal (Serial

signal) from outdoor unit controller to indoor unit controller

The following signals are sent from the outdoor unit controller.

• The current operation mode

• The current compressor revolution

• Outdoor temperature

• Existence of protective circuit operation For transferring of these signals, the indoor unit

controller monitors the contents of signals, and judges existence of trouble occurrence.

Contents of judgment are described below.

• Whether distinction of the current operation

status meets to the operation command signal

• Whether protective circuit operates

When no signal is received from the outdoor unit controller, it is assumed as a trouble.

8-1-1. Capacity Control

The cooling capacity is varied by changing compressor motor speed. The inverter changes compressor motor speed by changing AC 220–240V power to DC once, and controls capacity by changing supply power status to the compressor with transis-tor module (includes 6 transistors). The outline of the control is as follows : The revolution position and revolution speed of the motor are detected by detecting winding electromotive force of the com pressor motor under operation, and the revolution speed is changed so that the motor drives based upon revolution speed of the operation command by changing timing (current transfer timing) to ex change inverter output voltage and supply power winding.

Detection of the revolution position for controlling is performed 12 times per 1 revolution of compressor.

The range of supply power frequency to the com pressor differs according to the operation status (COOL, DRY).

Table 8-1-1 Compressor revolution range

Operation

mode

COOL

No. of

operating

unit

1 unit

2 units

3 units

4 units

Combination

of indoor units

M10

M13

M16

○＊

Compressor

revolution

(rps)

20 to 28

20 to 43

20 to 53

20 to 66

31 to 69

＊:In case that any multiple indoor units are combined.

8-1-2. Current Release Control

The outdoor main circuit control section (Inverter assembly) detects the input current to the outdoor unit. If the current value with compressor motor speed instructed from indoor side exceeds the specified value, the outdoor main circuit control section controls compressor motor speed by reducing motor speed so that value becomes closest to the command within the limited value.

Operation

mode

HEAT

No. of

operating

unit

1 unit

2 units

3 units

4 units

Combination

of indoor units

M10

M13

M16

○＊

Compressor

revolution

(rps)

15 to 52

15 to 63

15 to 67

15 to 90

17 to 90

22 to 90

8-1-3. Power Factor Improvement Control

Power factor improvement control is performed mainly aiming to reduce the current on much power consumption of cooling/heating operation. Controlling starts from the time when input power has reached at a certain point. To be concrete, IGBT of the power factor improvement circuit is used, and the power factor is improved by keeping IGBT on for an arbitrary period to widen electro-angle of the input current.

– 51 –

8-1-4. Prevent-Freezing Control

The indoor heat exchanger sensor detects refrigerant vapor temperature in COOL/DRY operation. If the temperature is below the specified value, compressor motor speed is reduced so that operation is performed in temperature below the specified value to prevent-freezing of indoor heat exchanger.

8-1-5. P. M. V. (Pulse Modulating Valve)

Using P.M.V., refrigerant flow of refrigeration cycle is varied for the optimum temperature. Controlling each unit separately by four P.M.V. corresponds to difference of pipe length, fan speed, and unit temperature.

If an error occurs on cycle temperature when power source of the air conditioner has been turned on, and if start/stop times of the outdoor unit are 30 times, move the valve once until it hits on the stopper for positioning of the valve. In this case, ticktack sound may be heard.

8-1-6. Louver Control

(1) Vertical air flow louvers

Positions of vertical air flow louvers are automatically controlled according to the operation status (AUTO, COOL, DRY, HEAT). Besides, positions of vertical air flow louvers can be arbitrarily set by pressing the [SET] button. The louver position which has been set by the [SET] button is stored in microcomputer, and the louver is automatically set at the stored position in the next operation.

(2) Swing

If the [AUTO] button is pressed during running operation, vertical air flow louvers start swinging. When the [AUTO] button is pressed again, swinging stops.

8-1-7. Indoor Fan Control (DC Fan Motor)

The indoor fan is operated by motor speed non-step variable DC drive system motor. For flow rate, motor speed is controlled manually in three steps (LOW, MED, HIGH), and with the unit of 10 rpm from upper limit to lower limit in AUTO mode as described in Table 8-1-2. It is not selected by relay, so selecting sound does not generate.

mode mode

Cooling

and Fan

only

DRY

Heating

and Fan

only

Table 8-1-2

FanOperation

Remote

Control

Motor speed

( rpm )

ir flow rate Motor speedAir flow rate Motor speed

/h )

( m

M10

M13 M16

( rpm )

( m3/h )

( rpm )

ir flow rate

( m3/h )

H HIGH 1190 560 1210 590 1350 670

M 1080 510 1130 530 1250 610

MED 1100 510 1130 530 1250 610

M MED 1000 460 1050 490 1150 550

LOW 960 440 990 460 1070 500

L 950 430 950 430 1050 490

+ L LOW 910 400 910 400 980 450 L 850 370 850 370 920 410

L 950 430 950 430 1050 490

+ L 910 400 910 400 980 450 L 850 370 850 370 920 410

UL 720 300 750 310 920 410

SUL 660 260 700 280 800 340

H HIGH 1250 610 1290 630 1370 690 M 1200 580 1280 620 1360 680

MED 1160 550 1190 560 1270 620

M MED 1060 500 1100 510 1180 560

LOW 1010 460 1030 480 1110 510

L 1050 490 1050 490 1150 550

+ L LOW 940 430 940 430 1020 480 L 930 420 930 420 1000 460

NOTE :

• UL : Ultra Low, SUL : Super Ultra Low

– 52 –

8-1-7. Outdoor Fan Control (DC Fan Motor)

Although the outdoor fan motor drives the outdoor fan by non-step variable system of the revolution speed, the revolution speed is restricted to three steps on the convenience of controlling.

If a strong wind is lashing outside of the room, the operation may be continued as the outdoor fan stops in order to protect the outdoor fan motor.

If a fan lock occurred due to entering of foreign matter, the air conditioner stops and an alarm is displayed.

<COOL, DRY>

Table 8-1-3

Compressor revolution (rps)

Outdoor temp.

sensor

ECONO.

operation

TO ≥ 38°C

TO < 38°C

TO ≥ 38°C

TO < 38°C

TO is abnormal

1 to 2 units 3 to 4 units

20.3

390 (rpm) 700 (rpm) 700 (rpm) 700 (rpm) 390 (rpm) 640 (rpm) 640 (rpm) 700 (rpm) 390 (rpm) 500 (rpm) 640 (rpm) 700 (rpm) 390 (rpm) 640 (rpm) 640 (rpm) 640 (rpm) 390 (rpm) 500 (rpm) 500 (rpm) 500 (rpm) 500 (rpm) 640 (rpm) 640 (rpm) 640 (rpm)

~ 50.3 ~ 62.8 63.4 ~

<HEAT>

Table 8-1-4

Compressor revolution (rps)

Outdoor temp. sensor TO ≥ 5°C

TO TO < 5°C

ECONO. operation

TO ≥ 5°C TO < 5°C

TO is abnormal

20.3 ~ 33.3 ~ 33.9

390 (rpm) 640 (rpm) 640 (rpm) 500 (rpm) 640 (rpm) 640 (rpm) 390 (rpm) 500 (rpm) 500 (rpm) 390 (rpm) 500 (rpm) 500 (rpm) 390 (rpm) 500 (rpm) 640 (rpm)

8-2. Description of Operation Circuit

• Turning [ON] the breaker flashes the operation lamp. This is the display of power-ON (or notification of po wer failure).

• When pushing [START/STOP] button of the remote controller, receive sound is issued from the main unit, and the next operations are performed together with opening the vertical air flow louvers.

8-2-1. Fan Only Operation

(The Remote controller MODE Button is Set to the FAN ONLY Operation)

• This mode is only for the cooling only model.

• Once the setting is made, the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing [START/STOP] button.

• When the F AN button is set to the AUTO position, the indoor fan motor operates as shown in Fig. 82-1. When the FAN SPEED button is set to LOW, MED, or HIGH, the motor operates with a constant air flow.

• ECONO. mode cannot be set.

– 53 –

˚C

+3 +2.5 +2 +1.5 +1 +0.5

(Room temp.) – (Set temp.)

Set temp.

(Set temp.) 25˚C

NOTE :

1: Calculated from difference in motor speed of M+

and L–, and controlled.

Fig. 8-2-1 Auto setting of air flow

M+ *1 *1 *1 L–

8-2-2. Cooling Operation

(The Remote controller MODE Button is Set to the COOL Position)

• Once the setting is made, the operation mode is memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing [START/STOP] button.

• A cooling operation signal is transmitted to outdoor unit.

• The indoor fan motor operates as shown in Fig.82-2 when FAN button is set to AUTO.

• The motor operates with a constant air flow when the FAN button is set to LOW, MED, or HIGH.

• The outdoor unit controls the outdoor fan relay R01, R02 and R03, and the compressor motor speed according to the operation command signal sent from the indoor unit.

˚C

+2.5

+1.5

(Room temp.) – (Set temp.)

+0.5

Set temp.

0 –0,5

NOTE :

1: Calculated from difference in motor speed of M+

and L–, and controlled.

Fig. 8-2-2 Setting of air flow [Air Flow AUTO]

M+

*1 L–

In normal operation

(1) Cooling capacity control

• The cooling capacity and room temperature are controlled by changing the compressor motor speed according to both the difference between the temperature detected by the room temperature sensor and the temperature set by TEMP button and also any change in room temperature.

• When compressor has been activated or reactivated, it operates with Max. 33 rps for 2 minutes and with Max. 57 rps from 2 to 4 minutes passed.

• When room temperature is lower than set temperature and indoor fan motor is operated at fan speed L– as shown in Fig. 8-2-2 while the outdoor unit stops.

(2) Prevent-freezing control

If temperature of indoor heat exchanger detected by the indoor heat exchanger sensor is 5°C or lower, compressor motor speed is gradually lowered to pre vent freezing of the indoor heat exchanger. If temperature is 7°C or higher, return the operation to the above item (1).

(3) Current release control

The input current of compressor and outdoor fan motor (Precisely inverter main circuit control section) which occupy most of air conditioner input is detected by the outdoor current sensor , and compressor motor speed is gradually lowered so that current value does not exceed 11.5A if current value exceeds 11.5A. When the current value lowers to 11.0A, return the operation to the above item (1).

Comp. motor

14.2

13.7

Current value

Normal control

speed down

Comp. motor speed keep

Fig. 8-2-3

(4) Outdoor temperature release control

The outdoor temperature release is controlled by changing the current release points 14.2 and 13.7 in the above item according to temperature detected by the outdoor temperature sensor.

For example, if the outdoor temperature is 43°C, the value of current release points becomes 9.6A.

– 54 –

(5) Limit for maximum compressor motor speed

by indoor fan speed

When outdoor temperature sensor detected 32°C or lower, and indoor heat exchanger sensor detected 17°C or lower, the maximum compressor motor speed is limited by the indoor fan speed.

For example, when 1 unit only operates, the compressor motor speed is limited as described in the table below.

Table 8-2-1

Air flow

rate

HIGH

M+

MED

L–

SUL

M10 M13 M16

(rps) (rps) (rps)

32 48 54 29 42 46 24 28 38 20 20 30 20 20 30 20 20 20 20 20 20

(6) Louver control

The vertical air flow louvers are automatically set to horizontal or cool memory position.

When temperature of indoor heat exchanger becomes 5°C or lower by the prevent-freezing control and the compressor is turned off, the vertical air flow louvers close once and then return to the position of previous time.

(7) Discharge temperature control

The discharge temperature of refrigerant gas from the compressor is detected by the discharge temperature sensor, and controls operating compressor motor speed.

1) Control 1 (A zone) : Normal operation zone

When TD detect value is 101°C or lower, the operation is performed with operating motor speed instructed by the serial signal.

2) Control 2 (B zone) : Slow-up zone of motor

speed When TD detect value is 101°C or higher,

operating motor speed is slowly up.

3) Control 3 (C zone) : Keep zone

When TD detect value is 108°C or higher, operating motor speed is not changed if raising operation speed.

4) Control 4 (D zone) : Slow down zone of motor

speed When TD detect value is 111°C or higher,

operating motor speed is slowly down.

5) Control 5 (E zone) : Normal down of motor

speed When TD detect value is 115°C or higher,

operating motor speed is down.

6) Control 6 (F zone) : Operation stop zone

If TD detect value exceeds 120°C during operation, stop the operation immediately.

Then, restart the operation when TD detect value becomes 108°C or lower.

(˚C)

120

115

111

108

101

Zone

Operation stop zone

Normal down zone of motor speed

Slow down of motor speed

Keep zone : Motor speed is not changed.

Slow-up zone of motor speed

Normal operation zone

Fig. 8-2-4 Compressor motor speed control

– 55 –

Release of motor speed

(8) ECONO. operation control

–0.5

+0.5

+1.0

+1.5

+2.0

+2.5

L–

SUL

(Room temp.) – (Set temp.)

Set temp.

When the ECONO. button of the remote controller is pushed, quiet and mild operation is performed by restraining air flow and operating motor speed.

1) Indoor air flow is controlled between SUL and L– (Low air (–)).

2) Setting M10 at 20 rps, M13 at 20 rps and M16 at 20 rps as the maximum operating compressor motor speed, the minimum capacity operation range is widened every 1 hour and 2 hours have passed after ECONO. operation had started.

3) Maximum operating compressor motor speed lowers up to 37 rps when the ECONO. instruction is sent from even a room.

1 unit

2 units 3 units 4 units

Compressor motor speed

Air volume

M10

M13

M16

3.5

2.5

1.5

(Room temp.) – (Set temp.)

0,5

Time2H1H

20 rps(L– + UL)/2

20 rps20 rpsL–

20 rps

20 rps20 rpsSUL

20 rps

33 rps 37 rps 32 rps

20 to 33 rps

20 rps

31 to 37 rps

31 rps

31 to 32 rps

31 rps

Fig. 8-2-5

8-2-3. DRY Operation

(The Remote controller MODE Button is Set to the DRY Position)

• Once the setting is made, the operation mode is

memorized in the microcomputer so that the same operation can be effected thereafter simply by pushing [START/STOP] button.

• Dry operation signal is transmitted to outdoor unit.

• The Cooling operation giving priority to dehumidi-

fying, which restrains the indoor fan speed and compressor motor speed, is performed.

• The indoor fan motor operates as shown in Fig. 8-

2-6. (Fan speed is AUTO only.)

• The outdoor unit controls the outdoor fan relay

R01, R02 and R03, and the compressor motor speed according to the operation command signal sent from the indoor unit.

NOTE :

1 : Middle motor speed between L– and SUL

Fig. 8-2-6 Setting of air flow

– 56 –

(1) Dehumidifying-preferential Cooling capacity

44 43

20 19

31 30

A – 8

A + 4 A – 8

HIGH

SUL

FAN

AUTO

Starting of FAN Manual

Approximate revolution speed of HIGH and SUL linear by Tc.

Stop

( NOTE : *1)

control

• The cooling capacity and room temperature are

controlled by changing the compressor motor speed according to both the difference between the temperature detected by the room temperature sensor and the temperature set by TEMP button and also any change in room temperature.

• When the air conditioner operates in Dry mode, the

maximum compressor motor speed is restricted.

M10 : Max. 20 rps M13 : Max. 20 rps M16 : Max. 22 rps

While multiple indoor units operate, compressor motor speed is calculated in the outdoor unit to operate.

• When room temperature is lower than set tempera-

ture, indoor fan motor is operated at fan speed SUL as shown in Fig. 8-2-6 while the outdoor unit stops.

• ECONO. mode cannot be set.

• Other controls than the above-mentioned controls

are common to those of Cooling operation.

8-2-4. Heating Operation

Transferring of heating operation signal from indoor unit to outdoor unit starts.

The indoor fan motor operates by the room temperature when selecting “AUTO” of “FA N” as shown in Fig. 8-2-7, and operates with a set air flow when selecting “Low” to “High”.

However, to prevent cold draft, revolution speed of the fan is restricted by indoor heat exchanger when air flow is AUTO (Fig. 8-2-8) and starting of FAN Manual.

[Basic control]

[Cold draft preventing control]

The upper limit of fan revolution speed is shown below.

Fig. 8-2-8 Cold draft preventing control

NOTES :

(1) Stops for 2 minutes after thermostat-OFF. (2) 24°C when the set temp. is 24°C or more

Set temp. when the set temp. is below 24°C

(3) SUL : Super ultra low

[In starting and in stability]

FAN AUTO

FAN Manual

In starting

• Until 12 minutes

passed after operation start

• When 12 to 25

minutes passed after operation start and room temp. is 3°C or lower than set temp.

• Room temp. ≤ Set temp. –4°C

In stability

• When 12 to 25

minutes passed after operation start and room temp. is higher than (set temp. –3°C)

• When 25 minutes or

more passed after operation start

• Room temp. > Set temp. –3,5°C

Set temp.

(Room temp.) –

1, *2 : Approximate revolution speed of M+ and L to

–0.5 –1 –1.5 –2

(Set temp.)

–5.0 –5.5

[FAN AUTO]

linear according to temperature.

Fig. 8-2-7 Setting of air flow

LOW

HIGH

* *

M+

The outdoor unit controls the outdoor fan based upon the operation signal sent from the indoor unit,

1 2

and also controls revolution speed of the compressor motor.

The power coupler (IC20) for four-way valve is turned on, and turned off in defrost operation.

(1) Heating capacity control

Calculate the difference between temperature detected by room temp. sensor every minute and the set temp. set on “Temp. indicator” and variation amount of room temp.

Then, obtain the correction amount of the command signal, and correct the current frequency command signal.

– 57 –

(2) High-temp. release control

If temperature of the indoor heat exchanger detected by the indoor heat exchanger sensor is 55°C or higher, compressor motor speed is gradually lowered to prevent over-temp. rising of compressed pressure.

If temperature becomes below 48°C, return to above item (1).

(3) Current release control

The input current of compressor and outdoor fan motor (Precisely inverter main circuit control section) which occupy most of air conditioner input is detected by the outdoor current sensor. The compressor motor speed is lowered gradually according to the range of TO (outside air temp.) if the input current exceeds the current value determined in each zone as shown in Fig. 8-2-9 so that the input current does not exceed the set value.

In case that the current lowered by approx. 0.3A to

0.5A than each set value, return to above item (1).

10.8A

10.3A

9.8A

Outside air temp. (˚C)

16.0

15.5

11.0

10.5

Fig. 8-2-9

(4) Defrost control

1) Detection of frost In heating operation, time duration while the

compressor operates is counted, and defrost operation starts by any condition described below.

a. The counted time is 28 minutes or more,

and status that temperature of the outdoor heat exchanger detected by the outdoor heat exchanger is –20°C or lower continued for 3 minutes or more.

b. The counted time is 28 minutes or more,

and status that temperature of the outdoor heat exchanger detected by the outdoor heat exchanger is –8°C or lower and temperature lowered by 2.5 °C than the minimum value of the outdoor heat exchanger during 10 to 15-minutes count time continued for 3 minutes or more.

c. The counted time is 34 minutes or more,

and status that temperature of the outdoor heat exchanger detected by the outdoor heat exchanger is –5°C or lower and temperature lowered by 3.0 °C than the minimum value of the outdoor heat exchanger during 10 to 15 minutes count time continued for 3 minutes or more.

d. The counted time is 4 hours or more, and

status that temperature of the outdoor heat exchanger detected by the outdoor heat exchanger is 0°C or lower and temperature lowered by 1.0 °C than the minimum value of the outdoor heat exchanger during 10 to 15 minutes count time continued for 3 minutes or more.

e. If the following three conditions are satis-

fied, defrost operation (Timer defrost) starts after heating operation for 48 minutes.

 Setting on remote control, HEAT

(mode), HIGH (Fan), 30°C (temp.).

 Room temp. is 19°C to 24°C, and

outside air temp. is 5°C or lower.

 Defrost operation has been already

performed once.

2) Defrost operation Operation of the compressor is stopped

once, turn off power coupler for four-way valve after 10 seconds, and then exchange the four-way valve.

After 20 seconds, restart operation of the compressor. Turn off the outdoor fan just when the compressor stopped.

If temperature of the indoor heat exchanger lowered than 38°C, stop the indoor fan.

3) Defrost reset Resetting operation from defrost to heating is

performed when any one of the following conditions is satisfied.

a. Temperature of the outdoor heat ex-

changer rose to +8°C or higher.

b. A status that temperature of the outdoor

heat exchanger is +5°C or higher continued for 80 seconds.

c. Defrost operation continued for 10 min-

utes.

In resetting defrost operation, the compressor stops for 50 seconds if defrost has started under condition a. to d. in item 1), but the compressor is reset to heating operation keeping operated if defrost has started under condition e. in item 1).

– 58 –

(5) Louver control

The vertical air flow louvers are automatically set to heating position or heat memory position. When the compressor is turned off by high-temp. release control, the vertical air flow louvers close once and then return to the position of previous time.

8-2-5. Auto Operation

(1) As shown in Fig. 8-2-10, the operation mode

(COOL, DRY, HEAT) is selected according to the outside temperature when the operation has started.

The operation in Fan mode continues until an operation mode is selected.

If the room temperature is 20°C or higher when

“AUTO” operation started within 2 hours after “HEAT” operation had stopped, select an opera-

tion mode after Fan operation of ultra low fan. In AUTO operation, the set temperature of each

operation can be corrected by the remote controller in the range of △Ts = ± 5°C.

Outdoor temp. (˚C)

Powerful Cool mode

8-3. Temporary Operation

• Temporary Auto operation, existence of Auto

Restart, and Temporary Cooling operation can be set by the TEMPORARY button of the indoor controller.

TEMPORARY button

Fig. 8-3-2

TEMPORARY button Control

OFF → ON Temporary Auto operation start

After pushing button

for 3 seconds

After pushing button Temporary Cooling

for 10 seconds operation start

Auto Restart control select

Cool mode

Fan mode

Heat mode

Fig. 8-2-10

(2) After selecting the operation mode (COOL, DRY,

HEAT), select an operation mode again when a status that the compressor was turned off by the room temperature or outside air temperature continues for 15 minutes.

(3) After selecting DRY operation, a status that the

room temperature is the set temp. –2°C continues for 15 minutes, select an operation mode again.

(4) Powerful Cool mode control

When the outside temperature is above 32°C and indoor temperature is above 28°C, select Cool mode control. In Cool mode, the air flow louver directs downward. When the room temperature gains access to the set temperature, it becomes cool memory position.

8-3-1. Temporary Auto Operation

• When the TEMPORARY button is pushed, the Auto operation with set temperature fixed at 24°C starts. Controlling is same as that of Auto operation by the remote controller.

• When the TEMPORARY button is pushed again, the operation stops.

• During Temporary Auto operation, operation by the remote controller is accepted.

• Using the Auto Restart function, the Temporary Auto operation starts when power failure is reset.

8-3-2. Temporary Cooling Operation

• When the TEMPORARY operation button keeps pushed for 10 seconds, Cooling operation of which compressor motor speed and the indoor fan speed are fixed starts.

Compressor motor speed : 24.5 rps Indoor fan speed : Low

• When the TEMPORARY operation button is pushed again, the operation stops.

• Auto Restart function is unavailable.

– 59 –

8-4. Auto Restart Function

This unit is equipped with an Automatic restarting facility which allows the unit to restart and resume the set operating conditions in the event of a power supply shutdown without the use of the hand control.

The operation will resume without warning three minutes after the power is restored.

The Auto Restart function is set not to work on shipment from the factory, and so it is necessary to set it to function as required.

• When the system is stand-by (not operating)

8-4-1. How to Set the Auto Restart

To set the Auto Restart function, proceed as follows: Access the TEMPORARY button located in the lower

right hand corner beneath the hinged front panel of the indoor unit (please refer to section on PARTS NAME). The power supply to the unit must be on the function will not be set if the power is off.

To enable the Auto Restart function, push the TEMPORARY button continuously for three seconds.

The unit will acknowledge the setting and beep three times. The system will now restart automatically.

The above Auto Restart settings can be carried out:

Operation

Push the TEMPORARY button continuously more than three seconds.

TEMPORARY button

• When the system is operating

Operation

Push the TEMPORARY button continuously more than three seconds.

Motion

Stand-by

↓

The system starts to operate. The green light goes on.

↓ about three seconds after

The unit beeps three times. The orange light goes on.

↓

The system is operating.

If the system is not required to run at this time, push the TEMPORARY button once more or use the remote controller and the unit will stop.

Motion

Operating The green light goes on.

↓

The system stops to operate. The green light goes off.

↓ about three seconds after

The unit beeps three times.

↓

The system stops.

TEMPORARY button

If the system is not required to stop at this time, use the remote controller and to restart.

During subsequent operation, the orange light goes on.

• The Auto Restart function will not accept an instruction if timer operation with the remote controller is selected.

(Please refer to the section on setting the timer or setting the louver.)

• During louver swing (AUTO) operation, after restart by the Auto Restart function the louver swing stops.

– 60 –

8-4-2. How to Cancel the Auto Restart

To cancel the Auto Restart function, proceed as follows: Repeat the setting procedure: the unit will acknowledge the instruction and beep three times. The system will now be required to manually restart with the remote controller after the main supply is turned off. Cancellation is carried out:

• When the system is stand-by (not operating)

Operation

Push the TEMPORARY button continuously more than three seconds.

TEMPORARY button

• When the system is operating

Operation

Push the TEMPORARY button continuously more than three seconds.

Motion

Stand-by

↓

The system starts to operate. The orange light goes on.

↓ about three seconds after

The unit beeps three times. The green light goes on.

↓

The system is operating.

If the system is not required to run at this time, push the TEMPORARY button once more or use the remote controller and the unit will stop.

Motion

Operating The orange light goes on.

↓

The system stops to operate. The orange light goes off.

↓ about three seconds after

The unit beeps three times.

↓

The system stops.

TEMPORARY button

If the system is not required to stop at this time, use the remote controller and to restart.

During subsequent operation, the green light is lighting.

8-4-3. In Case of Power Failure during the Timer Operation

(1) If ON-TIMER operation is reserved with setting of Auto Restart operation, it is cancelled with power failure.

(The OPERATION lamp on the main unit goes on and off to inform of power failure.) In that case, try to reserve ON-TIMER operation once again.

(2) If OFF-TIMER operation is reserved without setting of Auto Restart operation, the reservation is cancelled

with power failure. (The OPERATION lamp on the main unit goes on and off to inform of power failure.) In that case, try to reserve OFF-TIMER operation. When Auto Restart operation is set, OFF-TIMER reservation is also cancelled with power failure.

– 61 –

8-5. Remote control

8-5-1. Remote control and its functions

RAS-M10UKCV, RAS-M13UKCV, RAS-M16UKCV

1 Infrared signal emitter

Transmits a signal to the indoor unit.

2 START/STOP button

Press the button to start operation. (A receiving beep is heard.) Press the button again to stop operation. (A receiving beep is heard.) If no receiving sound is heard from the indoor unit, press the button twice.

3 Mode select button (MODE)

Press this button to select a mode. Each time you press the button, a mode is selected in a sequence that goes from A : Auto changeover control, : Cool,

: Heat,

: Fan only, and back to A.

(A receiving beep is heard.)

4 Temperature button (

The set temperature is increased up to 30°C.

,.......

9.......

The set temperature is dropped down to 17°C. (A receiving beep is heard.)

5 Fan speed button (FAN)

Press this button to select fan speed. When you select AUTO, the fan speed is automatically adjusted according to the room temperature. You can also manually select the desired fan speed from among five settings.

(LOW

MED

, LOW

, HIGH

, MED

(A receiving beep is heard.)

6 Auto louver button (SWING)

Press this button to swing the louver. (A receiving beep is heard.) Press the FIX button to stop the louver swinging. (A receiving beep is heard.)

7 Set louver button (FIX)

Press this button to adjust the air flow direction. (A receiving beep is heard.)

8 Off timer button (OFF)

Press this button to set the OFF timer.

9 On timer button (ON)

Press this button to set the ON timer.

! Reserve button (SET)

Press this button to reserve time settings. (A receiving beep is heard.)

" Cancel button (CLR)

Press this button to cancel ON timer and OFF timer. (A receiving beep is heard.)

# High power button (Hi POWER)

Press this button to start the high power operation.

: Dry,

)

$ Memory button (MEMO)

Press this button to stand by memorizing the settings. Press the button again for more than 4 seconds to memorize the setting indicated on the remote control and

% Automatic operation button (AUTO)

mark is indicated.

Press this button to operate the air conditioner automatically. (A receiving beep is heard.)

& ECO timer button (ECO)

Press this button to start the ECO timer (OFF timer) operation. You can select the OFF timer time from among four settings (1,3,5 or 9 hours).

((

( FILTER button

((

Press this button to turn off the filter cleaning lamp on the indoor unit. Press this button after cleaning the air filter.

))

) PRESET button

))

Press this button to operate the air conditioner according to settings memorized by the MEMO button.

~ TIMER button

Use this button to change the clock, ON timer, and OFF timer times. To forward the time, press the “TIMER

To set back the time, press the “TIMER

AUTOA

A B

START/STOP

FAN MODE

SWING

FIX

OFF SET CLR

FILTER

ECO

TIMER

PRESET

AUTO

Hi-POWER

MEMO

CLOCK CHECKRESET

” button.

– 62 –

8-5-2. Names and functions of indications on remote control Display

All indications, except for clock time indication, are indicated by pressing the START/STOP button.

1 Transmission mark

This transmission mark (,) indicates when the remote control transmits signals to the indoor unit.

2 Mode display

Indicates the current operation mode. (AUTO : Automatic control, A : Auto changeover control, : Cool,

: Dry, : Heat,

3 Temperature display

: Fan only)

Indicates the temperature setting (17°C to 30°C). When you set the operating mode to

: Fan only, no temperature

setting is indicated.

4 Louver operation display

AUTOA

A B

Indicates the louver positioning and operation. Five selectable positions

5 FAN speed display

,,,,

Automatic Swing

Indicates the selected fan speed. AUTO or one of five fan speed levels

(LOW

, LOW

, MED

can be indicated. Indicates AUTO when the operating mode is either AUTO or

6 TIMER and clock time display

The time set for timer operation or clock time is indicated. The present time is always indicated except for TIMER operation.

7 Hi POWER display

, MED

, HIGH

: Dry.

)

• In the illustration, all indications are indicated for explanation. During operation, only the relevant indications will be indicated on the remote control.

Indicates when the Hi POWER operation starts. Press the Hi POWER button to start and press it again to stop the operation.

(MEMORY) display

A B

Flashes for 4 seconds when the MEMO button is pressed during operation.

mark is indicated when keeping the button depressed for more than 4 seconds while the mark is flashing. Press another button to turn off the mark.

9 ECO TIMER display

Indicates when the ECO TIMER is in operation. Each time you press the ECO button, the display changes in the sequence of 1,3,5 or 9h.

– 63 –

9. INSTALLATION PROCEDURE

9-1. Safety Cautions

For general public use

Power supply cord of parts of appliance for Outdoor use shall be more than polychloroprene sheathed flexible cord (design H07RN-F), or cord designation 245IEC66. (1.5 mm

or more)

CAUTION

• THIS AIR CONDTIONER ADOPTS THE NEW HFC REFRIGERANT (R-410A) WHICH DOES NOT DESTROY OZONE LAYER.

R-410A refrigerant is apt to be affected by impurity such as water , oxidizing membrane, and oils because pressure of R-410A refrigerant is approx. 1,6 times of refrigerant R-22. Accompanied with adoption of the new refrigerant, refrigerating machine oil has been also changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating machine oil does not enter into the refrigerating cycle or new-refrigerant air coditioner. To prevent mixin of refrigerant or refrigerating machine oil, the sizes of connecting sections of charging port of the main unit or installation tools are different from those for the coventional refrigerant. Accordingly, the exclusive tools are required for the new refrigerant (R-410A) as shown below. For conecting pipes, use new and clean piping materials with high pressure-tight force, which were made fro R-410A only, so that water or dust does not enter. Moreover, do not use the existing piping because there are problems about pressure-tight forec and inner impurity in the existing piping.

CAUTION

This appliance must be connected to the main power supply by means of a circuit breaker or a switch with a contact separation of at least 3 mm.

The installation fuse (25A D type (RAS-13UKV-E only)

New Refrigerant Air Conditioner Installation

TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY.

) must be used for the power supply line of this air conditioner.

DANGER

• FOR USE BY QUALIFIED PERSONS ONLY.

• TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK. MAKE SURE ALL POWER SWITCHES ARE OFF.

FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.

• CONNECT THE CONNECTING CABLE CORRECTLY. IF THE CONNECTING CABLE IS CONNECTED BY WRONG WAY, ELECTRIC PARTS MAY BE DAMAGED.

• CHECK THE EARTH WIRE IS NOT BROKEN OR DISCONNECTED BEFORE INSTALLATION.

• DO NOT INSTALL NEAR CONCENTRATIONS OF COMBUSTIBLE GAS OR GAS VAPORS.

FAILURE TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION.

• TO PREVENT OVERHEATING THE INDOOR UNIT AND CAUSING A FIRE HAZARD, PLACE THE UNIT WELL AWAY (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEAT REGISTORS, FURNACE, STOVES, ETC.

• WHEN MOVING THE AIR-CONDITIONER FOR INSTALLING IT IN ANOTHER PLACE AGAIN, BE VERY CAREFUL NOT TO GET THE SPECIFIED REFRIGERANT WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CYCLE. IF AIR OR ANY OTHER GAS IS MIXED IN THE REFRIGERANT, THE GAS PRESSURE IN THE REFRIGERATION CYCLE BECOMES ABNORMALLY HIGH AND IT RESULTINGLY CAUSES BURST OF THE PIPE AND INJURIES ON PERSONS.

• IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK, IMMEDIATELY LET FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS IS HEATED BY FIRE OR SOMETHING ELSE, IT CAUSES GENERATION OF POISONOUS GAS.

WARNING

• Never modify this unit by removing any of the safety guards or by by-passing any of the safety interlock switches.

• Do not install in a place which cannot bear the weight of the unit.

Personal injury and property damage can result if the unit falls.

• Before doing the electrical work, attach an approved plug to the power supply cord. And, make sure the equipment to be earthed.

• Appliance shall be installed in accordance with national wiring regulations. If you detect any damage, do not install the unit. Contact your Toshiba dealer immediately.

CAUTION

• Exposure of unit to water or other moisture before installation will result in an electrical short. Do not store in a wet basement or expose to rain or water.

• After unpacking the unit, examine it carefully for possible damage.

• Do not install in a place that can increase the vibration of the unit. Do not install in a place that can amplify the noise level of the unit or where

noise and discharged air might disturb neighbors.

• To avoid personal injury, be careful when handling parts with sharp edges.

• Please read this installation manual carefully before installing the unit. It contains further important instructions for proper installation.

– 64 –

9-1-1. Installation/Servicing Tools

Changes in the product and components

In the case of an air condition using R-410A, in order to prevent any other refrigerant from being charged accidentally, the service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch)

• In order to increase the pressure resisting strength of the refrigerant piping, flare processing diameter and size of opposite side of flare nuts has been changed. (for copper pipes with nominal dimensions 1/2 and 5/8)

New tools for R-410A

New tools for R-410A Applicable to R-22 model Changes

As pressure is high, it is impossible to measure by means of conventional gauge .

Gauge manifold

Charge hose

Electronic balance for refrigerant charging

Torque wrench (nominal diam. 1/2, 5/8)

Flare tool (clutch type)

Gauge for projection adjustment

Vacuum pump adapter

Gas leakage detector

In order to prevent any other refrigerant from being charged, each port diameter has been changed.

In order to increase pressure resisting strength, hose materials and port size have been changed (to 1/2 UNF 20 threads per inch). When purchasing a charge hose, be sure to confirm the port size.

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

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

By increasing the clamp bar's receiving hole, 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 to the charge hose. The charge hose connecting part has two ports-one for conventional refrigerant (7/16 UNF 20 threads per inch) and one for R410A. If the vacuum pump oil (mineral) mixes with R-410A a sludge may occur and damage the equipment.

Exclusive for HFC refrigerant.

• Incidentally, the “refrigerant cylinder” comes with the refrigerant designation (R-410A) 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” require 1/2 UNF 20 threads per inch corresponding to the charge hose's port size.

– 65 –

9-2. Indoor unit

RAS-M10UKV-E,RAS-M13UKV-E,RAS-M16UKV-E RAS-M10UKCV-E,RAS-M13UKCV-E,RAS-M16UKCV-E

Zeolite filter

Before installing the wireless remote control

• With the remote control cover open, load the batteries supplied correctly, observing their polarity.

2 Wireless remote control

Cover

170 mm

or more

Air filter

(Attach to the front panel)

Purifying filter

Wireless remote

control

Hook

Flat head wood screw

Remote control holder

Hook

65 mm or more

Installation

plate

Shield pipe

170 mm

or more

For the rear left and left piping

Wall

Insert the cushion between the indoor unit and wall, and tilt the indoor unit for better operation.

Do not allow the drain hose to get slack.

Cut the piping hole sloped slightly

Make sure to run the drain hose sloped downward.

The auxiliary piping can be connected the left, rear left, rear right, right, bottom right or bottom left.

3 Batteries

Insulate the refrigerant pipes separately with insulation, not together.

6 mm thick heat resisting polyethylene foam

9-2-1. Accessory and Installation Parts

Part

No.

Part name (Q'ty)

Installation plate x 1

Wireless remote control x 1

Battery x 2

Others

Name

Owner's manual

Installation manual

This model is not equipped with an extension drain hose.

Option :

For the extension drain hose, use an optionally available RB-821SW or commercially available one.

Part

No.

Part name (Q'ty)

Remote control holder x 1

Zeolite filter x 1

Purifying filter x 1

Right

Part

No.

Rear right

Rear left

Bottom right

Part name (Q'ty)

Mounting screw ∅4 x 25 s x 6

Flat head wood screw ∅3.1 x 16 s x 2

B Label x 1

Left

Bottom left

– 66 –

9-2-2. Installation Place

∅65 mm

100 mm

• A place which provides the spaces around the indoor unit as shown in the above diagram.

• A place where there is no obstacle near the air inlet and outlet.

• A place which allows easy installation of the piping to the outdoor unit.

•

A place which allows the front panel to be opened.

• The indoor unit shall be installed as top of the indoor unit comes to at least 2m height. Also it must be avoided to put anything on the top of the indoor unit.

CAUTION

• Direct sunlight to the indoor unit wireless receiver should be

avoided.

• The microprocessor in the indoor unit should not be too close to

r-f noise sources. (For details, see the owner's manual.)

Remote controller

• A place where there are no obstacles such as a curtain that may block the signal from the indoor unit.

• Do not install the remote control in a place exposed to direct sunlight or close to a heating source, such as a stove.

• Keep the remote control at least 1 m apart from the nearest TV set or stereo equipment. (This is necessary to prevent image disturbances or noise interference.)

• The location of the remote control should be determined as shown below.

Remote

control

(Top view)

Indoor unit

Reception range

* : Axial distance

Fig. 9-2-1

5 m

45°

5 m

45°

Remote control

* 7 m

(Side view)

7 m

Indoor unit

75°

Reception range

9-2-3. Cutting a Hole and Mounting Installation Plate

Cutting a Hole

When install the refrigerant pipes from the rear.

Mounting the Installation Plate

For installation of the indoor unit, use the paper pattern on the back.

Anchor bolt holes

82.5

Installation plate

170

Pipe hole

Indoor unit

Hook

Thread

Weight

Hook

Mounting screw

Pipe hole

Fig. 9-2-3

When the installation plate is directly mounted on the wall

1.Securely fit the installation plate onto the wall by screwing it in the upper and lower parts to hook up the indoor unit.

2.To mount the installation plate on a concrete wall with anchor bolts, utilize the anchor bolt holes as illustrated in the above figure.

3. Install the installation plate horizontally in the wall.

CAUTION

When installing the installation plate with a mounting screw, do not use the anchor bolt hole. Otherwise the unit may fall down and result in personal injury and property damage.

Anchor bolt

5 mm dia. hole

Clip anchor (local parts)

7 Mounting

screw ∅4 x 25 s

Fig. 9-2-4

Projection 15 mm or less

2 m or more from floor

Pipe hole

The center of the pipe hole is above the arrow.

Fig. 9-2-2

1.After determining the pipe hole position on the mounting plate (A) drill the pipe hole (∅65 mm) at a slight downward slant to the outdoor side.

NOTE

• When drilling a wall that contains a metal lath, wire lath or metal plate, be sure to use a pipe hole brim ring sold separately.

CAUTION

Failure to firmly install the unit may result in personal injury and property damage if the unit falls.

• In case of block, brick, concrete or similar type walls, make 5 mm dia. holes in the wall.

• Insert clip anchors for appropriate 7 mounting screws.

NOTE

• Install the installation plate using 4 to 6 pieces of mounting screw securing four corners with screws.

9-2-4. Electrical Work

1.The supply voltage must be the same as the rated voltage of the air conditioner.

2.Prepare the power source for exclusive use with the air conditioner.

NOTE

• Wire type : More than H07RN-F or 245IEC66 (1.0 mm2 or more)

– 67 –

CAUTION

• This appliance can be connected to the mains in either of the following two ways. (1) Connection to fixed wiring :

A switch or circuit breake which disconnects all poles and has a contact separation of at least 3 mm must be incorporate in the fixed wiring. An approved circuit breaker or switches must used.

(2) Connection with power supply plug :

Attach power supply plug with power cord and plug it into wall outlet. An approved power supply cord and plug must be used.

NOTE

• Perform wiring works so as to allow a generous wiring capacity.

9-2-5. Wiring Connection

How to connect the connecting cable

Wiring of the connecting cable can be carried out without removing the front panel.

1.Remove the air inlet grille. Open the air inlet grille upward and pull it toward you.

2.Remove the terminal cover and cord clamp.

3.Insert the connecting cable (according to the local cords) into the pipe hole on the wall.

4.Take out the connecting cable through the cable slot on the rear panel so that it protrudes about 15 cm from the front.

5.Insert the connecting cable fully into the terminal block and secure it tightly with screws.

6.Tightening torque :1.2 N·m (0.12 kgf·m)

7.Secure the connecting cable with the cord clamp.

8.Fix the terminal cover, rear plate bushing and air inlet grille on the indoor unit.

9-2-6 Piping and Drain Hose Installation

Piping and Drain Hose Forming

* Since dewing results in a machine trouble, make sure to insulate both

the connecting pipes. (Use polyethylene foam as insulating material.)

Rear right

Rear left

Bottom left

Changing

Left

Bottom right

Right

Die-cutting

Front panel slit

drain hose

Piping preparation

1. Die-cutting Front panel slit

Cut out the slit on the left or right side of the front panel for the left or right connection and the slit on the bottom left or right side of the front panel for the bottom left or right connection with a pair of nippers.

2. Changing drain hose

For left connection, left-bottom connection and rear-left connection’s piping, it is necessary to change the drain hose and drain cap.

How to remove the Drain Cap

Clip drain cap by needle-nose plier, and pull out.

CAUTION

• Be sure to refer to the wiring system diagram labeled inside the

front panel.

• Check local electrical cords and also any specific wiring instruc-

tions or limitations.

Cord clamp Teminal block

Screw

Earth wire

Connecting cable

10mm

3 2

80 mm

10mm

50 mm

Earth line

Terminal cover

Screw

NOTE

• Wire type : More than H07RN-F or 245IEC66 (1.0 mm2 or more)

Connecting cable

about

Fig. 9-2-6

How to install the Drain Hose

Firmly insert drain hose connecting part until hitting on a heat insulator.

Heat insulator

Drain hose

Fig. 9-2-7

How to fix the Drains Cap

1)Insert hexagonal wrench (4 mm) in a center head.

4 mm

Fig. 9-2-8

2)Firmly insert drains cap.

No gap

Do not apply lubricating oil (refrigerant machine oil) when inserting the drain cap. Application causes deterioration and drain leakage of the plug.

Insert a hexagon wrench (4 mm)

Fig. 9-2-9

Fig. 9-2-5

CAUTION

Firmly insert the drain hose and drain cap; otherwise, water may leak.

– 68 –

In case of right or left piping

• After scribing slits of the front panel with a knife or a making-off pin, cut them with a pair of nippers or an equivalent tool.

Slit

Fig. 9-2-10

In case of bottom right or bottom left piping

• After scribing slits of the front panel with a knife or a making-off pin, cut them with a pair of nippers or an equivalent tool.

Slit

Fig. 9-2-11

Left-hand connection with piping

Bend the connecting pipe so that it is laid within 43 mm above the wall surface. If the connecting pipe is laid exceeding 43 mm above the wall surface, the indoor unit may unstably be set on the wall. When bending the connecting pipe, make sure to use a spring bender so as not to crush the pipe.

Bend the connection pipe within a radius of 30 mm (Ø6.35) 40 mm (Ø9.52).

To connect the pipe after installation of the unit (figure)

(To the forefront of flare)

270 mm

170 mm

R30 or less (Ø6.35) R40 or less (Ø9.52) (Use polisin (polyethylene core or the like for bending pipe.)

43 mm

Liquid side

Gas side

Outward form of indoor unit

9-2-6 Indoor Unit Fixing

1.Pass the pipe through the hole in the wall, and hook the indoor unit on the installation plate at the upper hooks.

2.Swing the indoor unit to right and left to confirm that it is firmly hooked up on the installation plate.

3.While pressing the indoor unit onto the wall, hook it at the lower part on the installation plate. Pull the indoor unit toward you to confirm that it is firmly hooked up on the installation plate.

Hook

Hook here

Installation plate

Press

(unhook)

Fig. 9-2-14

• For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing its bottom up at the specified parts.

Push

Fig. 9-2-15

9-2-7 Drainage

1.Run the drain hose sloped downwards.

NOTE

• Hole should be made at a slight downward slant on the outdoor side.

Do not rise the drain hose.

Do not form the drain hose into the waved shape.

Use the handle of screwdriver, etc.

Fig. 9-2-12

NOTE

If the pipe is bent incorrectly, the indoor unit may unstably be set on the wall. After passing the connecting pipe through the pipe hole, connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them.

CAUTION

• Bind the auxiliary pipes (two) and connecting cable with facing tape tightly. In case of leftward piping and rear-leftward piping, bind the auxiliary pipes (two) only with facing tape.

Indoor unit

Auxiliary pipes

Installation plate

Fig. 9-2-13

• Carefully arrange pipes so that any pipe does not stick out of the rear plate of the indoor unit.

• Carefully connect the auxiliary pipes and connecting pipes to each other and cut off the insulating tape wound on the connecting pipe to avoid double-taping at the joint, moreover, seal the joint with the vinyl tape, etc.

• Since dewing results in a machine trouble, make sure to insulate both the connecting pipes. (Use polyethylene foam as insulating material.)

• When bending a pipe, carefully do it not to crush it.

Connecting cable

50 mm or more

Do not put the drain hose end into water.

Do not put the drain hose end in the drainage ditch.

Fig. 9-2-16

2.Put water in the drain pan and make sure that the water is drained out of doors.

3.When connecting extension drain hose, insulate the connecting part of extension drain hose with shield pipe.

Shield pipe

Inside the roomDrain hose

Extension drain hose

Fig. 9-2-17

CAUTION

Arrange the drain pipe for proper drainage from the unit. Improper drainage can result in dew-dropping.

This air conditioner has the structure designed to drain water collected from dew, which forms on the back of the indoor unit, to the drain pan. Therefore, do not store the power cord and other parts at a height above the drain guide.

Space for pipes

Fig. 9-2-18

Wall

Drain guide

– 69 –

9-2-8. Setting of Remote Controller Selector

Switch

When two indoor units are installed in the separated rooms, there is no need to change the select switches.

Remote Controller Selector Switch

• When two indoor units are installed in the same room or adjacent two rooms, if operating a unit, two units may receive the remote controller signal simultaneously and operate. In this case, the operation can be preserved by setting either one indoor unit and remote controller to B setting (Both are set to A setting in factory shipment).

• The remote control signal is not received when the settings of indoor unit and remote controller are different.

• There is no relation between A setting/B setting and A room/B room when connecting the piping and cables.

(1) Stop the operation of the air conditioner and turn

turn off its main power supply.

(2) Pull the air inlet grille toward you to open it and remove the air inlet grille.

(3) First open the horizontal louver and then remove

the front panel from the back body by pulling it toward you.

Position of Remote Control Selector Switch

1. Setting of remote controller switch at the indoor unit side

How to remove the front cabinet

Fig. 9-2-20

How to mount the front panel

Push the front panel back in and make sure all hook are locked.

Adhesion of B label (When setting to [B])

Be sure to affix the B label on the front panel same

as the below figure.

Fig. 9-2-19

Fig. 9-2-21

– 70 –

2. Setting of remote controller selector at the remote controller side

[B] of the remote controller is displayed with liquid crystal only when it is set to [B].

There is no display of [A].

• Enter the batter.

• Push the [CHK] button by something with thin

edge. ([00] is displayed.)

• If [MODE] button is pushed while pushing [CHK]

button, the small [B] is displayed at the right of the setting temperature indication section.

To reset [A] setting, push the [MODE] button

again while pusing the [CHK] button.

3. Confirm the indoor unit can operate with the changed setting of the remote controller.

9-2-9. Check and Test Operation

¨ 1. Check the unit is firmly hooked up on the

installation plate.

¨ 2. Check the connecting pipes tightened

securely. Confirm that there is no gas leakage.

¨ 3. Confirm that all connecting cables are

secured and correct.

¨ 4. Check the pipes insulation. ¨ 5. Check the drainage. ¨ 6. Connection of the grounding wire. ¨ 7. To switch the TEST RUN (COOL) mode, turn

the switch on. To switch the TEST RUN (COOL) mode,

press TEMPORARY button for 10 sec. (The beeper will make a short beep.)

MODE button

The above remote controller is one for cooling

only model.

PRESET

START/STOP

AUTO

MODE

FAN

SWING

FIX

ON OFF SET CLR

FILTER

ECO

TIMER

Hi-POWER

MEMO

CLOCK CHECKRESET

[CHK] button

TEMPORARY button

Fig. 9-2-23

¨ 8. Operate the unit at cooling operation mode

for fifteen minutes or more . Measure the temperature of the intake and

discharge air. Ensure the difference between the intake temperature and the discharge one is more, than 8°C.

NOTE: Three-minutes protection f eature

A protection feature prevents the air conditioner from being activated for about 3 minutes when it is restarted immediately after operation or when the power switch is turned on.

¨ 9. Check the remote controller operation.

When finished the check and test operation, make sure to return to REMOTE CONTROLLER. (Push the temporary switch with once again.)

¨ 10. Explain to the customer on the correct usage

of air conditioner simple layman’s terms.

– 71 –

9-3. Outdoor Unit

9-3-1. Accessory and

Installation Parts

Owner's manual x 1

CAUTION

1. Install the outdoor unit without anything blocking the air discharging.

2. When the outdoor unit is installed in a place exposed always to a strong wind like a coast or on a high story of a building, secure the normal fan operation using a duct or a wind shield.

3. Specially in windy area, install the unit to prevent the admission of wind.

Outdoor unit installation manual x 1

Specifications x 1

9-3-2. Refrigerant Piping

• Piping kit used for the conventional refrigerant

cannot be used.

• Use copper pipe with 0.8 mm or more thickness.

• Flare nut and flare works are also different from those of the conventional refrigerant. Take out the flare nut attached to the main unit of the air conditioner, and use it.

9-3-3. Installation Place

• A place which provides the spaces around the outdoor unit.

• A place where the operation noise and discharged air do not disturb your neighbors.

• A place which is not exposed to a strong wind.

• A place which does not block a passage.

• When the outdoor unit is to be installed in an

elevated position, be sure to secure its feet.

• There must be sufficient spaces for carrying the unit into and out of the site.

• A place where the drain water does not raise any problem.

Strong wind

Fig. 9-3-1

4. Installation in the following places may result in trouble. Do not install the unit in such places.

• A place full of machine oil.

• A place full of sulfide gas.

• A place where high-frequency waves are

likely to be generated as from audio equipment, welders, and medical equipment.

9-3-4. Optional Installation Parts

(Local Supply)

Parts name

Refrigerant piping

Liquid side : Ø6.35 mm Gas side : Ø9.52 mm or Ø12.7 mm

Pipe insulating material (polyethylene foam, 6 mm thick)

Putty, PVC tapes

Each one

9-3-5. Optional Installation Parts

(Separate Sold)

Parts name

RB-M43RE Reducer (Ø12.7 → Ø9.52) RB-M34EE Expander (Ø9.52 → Ø12.7)

Q’ty

– 72 –

9-3-6. Refrigerant Piping Connection

CAUTION

KEEP IMPORTANT 4 POINTS FOR PIPING WORK

1. Take away dust and moisture. (Inside of the connecting pipes)

2. Tight connection (between pipes and unit)

3. Evacuate the air in the connecting pipes using VACUUM PUMP.

4. Check gas leak. (connected points)

Flaring

1. Cut the pipe with a pipe cutter.

• Flaring size : A (Unit : mm)

Outer dia. of copper pipe

6.35

9.52

12.7

In the case of flaring for R410A with the conven-

tional flare tool, pull out it approx.

R410A R22

0.5 mm more than that for R22 to

- 0.4

9.1 9.0

13.2 13.0

16.6 16.2

adjust to the specified flare size. The copper pipe gauge is useful for adjusting projection margin size.

Fig. 9-3-4

9-3-7. Installation

NOTE : For installation, at least 3 dimensions should

be kept free from obstacles (walls).

90˚

Obliquity Roughness Warp

Fig. 9-3-2

2. Insert a flare nut into the pipe, and flare the pipe. As the flaring sizes of R410A differ from those of

refrigerant R22, the flare tools newly manufactured for R410A are recommended.

However, the conventional tools can be used by adjusting projection margin of the copper pipe.

Fig. 9-3-3

• Projection margin in flaring : B (Unit : mm)

Rigid (Clutch type)

Outer dia. of

copper pipe

6.35

9.52

12.7

R410A tool used

R410A R22

0 to 0.5 (Same as left) 0 to 0.5 (Same as left) 0 to 0.5 (Same as left)

Conventional tool used

R410A R22

1.0 to 1.5 0.5 to 1.0

Imperial (Wing nut type)

Outer dia. of copper pipe

6.35

9.52

12.7

R410A R22

1.5 to 2.0 1.0 to 1.5

2.0 to 2.5 1.5 to 2.0

100mm or more

from wall

600mm or more

As shown in the figure, hang power cord and connecting cable downward, and take out it along piping connection port.

600mm or more

10. HOW TO DIAGNOSE THE TROUBLE

The pulse modulating circuits are mounted to both indoor and outdoor units. Therefore, diagnose troubles according to the trouble diagnosis procedure as described below. (Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.)

Table 10-1

No.

1 2 3 4 5 6 7 8 9

First Confirmation Primary Judgment Judgment by Flashing LED of Indoor Unit Self-Diagnosis by Remote Controller (Check Code) Judgment of Trouble by Every Symptom Trouble Diagnosis by Outdoor LED How to Diagnose Trouble in Outdoor Unit How to Check Simply the Main Parts How to Simply Judge Whether Outdoor Fan Motor is Good or Bad

Troubleshooting Procedure

NOTE :

A large-capacity electrolytic capacitor is used in the outdoor unit controller (inverter). Therefore, if the power supply is turned off, charge (charging voltage DC280V) remains and discharging takes a lot of time. After turning off the power source , if touching the charging section before discharging, an electrical shock may be caused. Discharge the electrolytic capacitor completely by using soldering iron, etc.

Page

80 80 81 82 85 91 92 93 99

< Discharging method >

(1) Remove the in verter cover (plating) by opening

four mounting claws.

(2) As shown below, connect the discharge

resistance (approx. 100Ω/40W) or plug of the soldering iron to voltage between + – terminals of the C13 (“CAUTION HIGH VOLTAGE 320V” is indicated.) electrolytic capacitor (760µF/400V) on P.C. board, and then perform discharging.

Discharging position (Discharging period 10 seconds or more)

Fig. 11-1

Plug of soldering iron

Inverter cover

P. C . board (Soldered surface)

– 79 –

10-1. First Confirmation

10-1-1. Confirmation of Power Supply

Confirm that the power breaker operates (ON) normally.

10-1-2. Confirmation of Power Voltage

Confirm that power voltage is AC 220–240V ± 10%. If power voltage is not in this range, the unit may not operate normally.

Table 10-1-1

10-1-3. Operation Which is not a Trouble

(Program Operation)

For controlling the air conditioner, the program operations are built in the microcomputer as described in the following table. If a claim is made for running operation, check whether or not it meets to the contents in the following tab le. When it does, we inform you that it is not trouble of equipment, but it is indispensable for controlling and maintaining of air conditioner.

No.

Operation of air conditioner

When power breaker is turned “ON”, the operation lamp (Green) of the indoor unit flashes.

Compressor may not operate even if the room temperature is within range of compressor-ON.

In DRY and ECONO. mode, FAN (air flow) display does not change even though FAN (air flow select) button is operated.

Increasing of compressor motor speed stops approx. 30 seconds after operation started, and then compressor motor speed increases again approx. 30 seconds after.

The set value of the remote control should be below the room temperature.

Description

The OPERATION lamp of the indoor unit flashes when power source is turned on. If “START/STOP” button is operated once, flashing stops. (Flashes also in power failure)

The compressor does not operate while compressor restart delay timer (3-minutes timer) operates. The same phenomenon is found after power source has been turned on because 3-minutes timer operates.

The air flow indication is fixed to [AUTO].

For smooth operation of the compressor, the compressor motor speed is restricted to Max. 33 rps for 2 minutes and Max. 57 rps for 2 minutes to 4 minutes, respectively after the operation has started.

If the set value is above the room temperature, Cooling operation is not performed. And check whether battery of the remote control is consumed or not.

10-2. Primary Judgment

To diagnose the troubles, use the f ollowing methods. (1) Judgment by flashing LED of indoor unit (2) Self-diagnosis by service check remote controller (3) Judgment of troub le by every symptom

Firstly use the method (1) for diagnosis. Then, use the method (2) or (3) to diagnose the details of troubles. For any troub le occurred at the outdoor unit side, detailed diagnosis is possible by 5-serial LED on the inverter

P.C . board.

– 80 –

10-3. Judgment by Flashing LED of Indoor Unit

While the indoor unit monitors the operation status of the air conditioner, if the protective circuit operates, the contents of self-diagnosis are displayed with block on the indoor unit indication section.

Table 10-3-1

Lamps Self-diagnosis

A OPERATION lamp is blinking. (1Hz)

B OPERATION lamp is blinking. (5Hz) C OPERATION lamp is blinking. (5Hz) D OPERATION lamp is blinking. (5Hz)

E OPERATION lamp is blinking. (5Hz)

F OPERA TION and TIMER lamps are blinking.

(5Hz)

G OPERATION, TIMER and FAN ONLY lamps

are blinking.

H OPERATION, TIMER and FAN ONLY lamps

are blinking.

Power failure (when the power supply is turning on) Thermo sensor (TA) short or break Heat exchanger sensor (TC) short or break Indoor fan motor lock or failure Indoor P.C. board failure Wrong wiring of connecting cable

• Gas shortage or other refrigerant cycle trouble

• Heat exchanger sensor open, break or short

• Overload relay or thermostat trouble of compressor

Cycle failure

NOTES:

(1) The contents of items B and C and a part of item E are displayed when air conditioner operates. (2)

When item B and C, and item B and a part of item E occur concurrently, priority is given to the block of item B.

(3) The check codes can be confirmed on the remote controller for servicing.

(4) When connecting the changing kit, first-push priority control is executed. The secondary operation lamp

continues flashing. For details, refer to the section 10. Changing Kit.

– 81 –

10-4. Self-Diagnosis by Remote Control

(Check Code)

(1) If the lamps are indicated as shown B to H in Table

11-3-1, exchanger the self-diagnosis by the remote control.

(2) When the remote control is set to the service

mode, the indoor controller diagnoses the operation condition and indicate the information of the self-diagnosis on the display of the remote control with the check codes. If a fault is detected, all lamps on the indoor unit will blink at 5Hz and it will

beep for 10 seconds (Pi, Pi, Pi....). The timer lamp

usually blinks (5Hz) during the self-diagnosis.

10-4-1. How to use remote control in service mode

SET CLR

CLOCK CHECKRESET

AUTOA

A B

(1) Press [CHECK] button with a tip of pencil to set

the remote control to the service mode.

• “00” is indicated on the display of the remote control.

• The timer lamp on the indoor unit blinks continuously. (5 times per 1 sec.)

START/STOP

FAN MODE

SWING

ECO

TIMER

FIX

OFF SET CLR

FILTER

PRESET

AUTO

Hi-POWER

MEMO

CLOCK CHECKRESET

(2) Press [TIMER 8] button.

If there is no fault with a code, the indoor unit will beep once (Pi) and the display of the remote control will change as follows:

; 00 ; 01 ; 02 ··· 1d ; 1E ; 22

• Check the unit with all 35 check codes (00 to

22). as shown in Table 10-4-1.

• Press [TIMER 9] button to change the check code backwards.

If there is a fault, the indoor unit will beep for 10 seconds (Pi, Pi, Pi...). Note the check code on the display of the remote control.

• 2-digits alphanumeric will be indicated on the display.

• All lamps on the indoor unit will blink. (5 times per 1 sec.)

(3) Press [CLR] button. After service finish for clear

service code in memory.

• “7F” is indicated on the display of the remote control.

• Alphanumeric characters are used for the check code.

is 5. is 6. is A. is B. is C. is D.

(4) Press [START/STOP] button to release the service

mode.

• The display of the remote control returns to as it was before service mode was engaged.

– 82 –

10-4-2. Operation Control by Rated Frequency in Service Mode

In the service mode, pushing “ON” or “OFF” operates the air conditioner by rated frequency of COOL mode for 30 minutes.

10-4-3. Caution at Servicing

(1) After servicing, push the START/STOP button to return to the normal mode. (2) After servicing by the check code, turn off breaker of the power supply, and turn on breaker of the power

supply again so that memory in the microcomputer returns the initial status. However, the check codes are not deleted even if the power supply is turned off because they are stored in the fixed memory.

Table 10-4-1

Block distinction

Check

code

Block

Indoor P.C. board etc.

Not displayed

Connecting cable and serial signal

Check

code

Operation of diagnosis function

Cause of operation

Short-circuit or disconnection of the room temperature sensor (TA sensor).

Coming-off, disconnection, short-circuit, or migration of heat exchanger sensor (TC sensor)

Lock of indoor fan or trouble on the indoor fan circuit

Trouble on other indoor P.C. boards

Return serial signal is not sent to indoor side from operation started. (1) Defective wir ing of

connecting cable

(2) Operation of

compressor thermo. Gas shortage Gas leak

Air

conditioner

status

Operation continues.

All off

Operation continues.

Condition

Displayed when error is detected.

Flashes when trouble is detected on Return serial signal, and normal status when signal is reset.

Judgment and action

1. Check the room temp. sensor.

2. When the room temp. sensor is normal, check P.C. board.

1. Check heat exchanger sensor.

2. When heat exchanger sensor is normal, check P.C. board.

1. Check P.C. board.

2. When P.C. board is normal, check the motor.

Replace P.C. board.

1. When the outdoor unit never operate:

(1) Check connecting cable, and

correct if defective wiring.

(2) Check 25A ( or 30A) fuse (F01)

of outdoor main P.C. board.

(3) Check 3.15A fuse (F04) of

outdoor main P.C. board.

2. To display [Other] block during operation, check compressor thermo. operation and supply gas (check gas leak also).

3. Unit operates normally during check. If Return serial signal does not stop between indoor terminal board 2 and 3, replace inverter P.C. board. If signal stops between indoor terminal board 2 and 3, replace indoor P.C. board.

Operation command signal is not sent to outdoor side.

Operation continues.

– 83 –

Flashes when trouble is detected on Operation command signal, and normal status when signal is reset.

If Operation command signal does not stop between indoor terminal board 2 and 3, replace inverter P.C. board. If signal stops between indoor terminal board 2 and 3, replace indoor P.C. board.

Block distinction

Operation of diagnosis function

Check

code

Block

Outdoor P.C. board

Check

code

Cause of operation

Inverter over-current protective circuit operates. (Short time)

Position-detect circuit error or short-circuit between windings of compressor

Current-detect circuit error

Being out of place, disconnection or shortcircuit of outdoor temp. sensor

Disconnection or shortcircuit of discharge temp. sensor

Outdoor fan drive system error

Air

conditioner

status

All off

Remarkes

Displayed when error is detected.

Judgment and action

Even if trying operation again, all operations stop immediately. : Replace P.C. board.

1. Even if connecting lead wire of compressor is removed, positiondetect circuit error occurred. : Replace P.C. board.

2. Measure resistance between wires of compressor, and perform shortcircuit. : Replace compressor.

Even if trying operation again, all operations stop immediately. : Replace P.C. board.

Check 5-serial LED.

1. Check P.C. board.

1. Check discharge temp. sensor (TD).

2. Check P.C. board.

Position-detect error, over-current protective operation of outdoor fan drive system, fan lock, etc. : Replace P.C. board or fan motor.

Not displayed

Outdoor P.C. board

Others (including compressor)

Outdoor temp. sensor error

Compressor drive output error, Compressor error (lock, missing, etc.), Break down

Error exclusive for multiple type

Compressor does not rotate. (Current protective circuit does not operate when a specified time passed after compressor had been activated.)

Discharge temp. exceeded 120°C.

Break down of compressor

Operation continues.

All off

——

Displayed when error is detected.

1. Check outdoor temp. sensor (TO).

2. Check P.C. board.

Check 5-serial LED. When 20 seconds passed after start-up, position-detect circuit error occurred. : Replace compressor.

Check 5-serial LED.

1. Miswiring of connecting wire of A/B/ C/D rooms in indoor/outdoor units

2. Check gas leakage.

3. Check disconnection of sensor.

4. Electronic control valve error

1. Trouble on compressor

2. Trouble on wiring of compressor (Missed phase)

1. Check dischage temp. sensor (TD).

2. Degassing

3. Trouble on P.M.V.

1. Check power voltage. (220–240 V ±10%)

2. Overload operation of refrigeration cycle Check installation condition (Short-circuit of outdoor diffuser).

– 84 –

10-5. Judgement of Trouble by Every Symptom

10-5-1. Indoor unit (Including remote controller)

(1) Power is not turned on (Does not operate entirely)

supply once, and 5

second later, turn it

Is fuse (F01)

of indoor control

board blown?

Turn off power

on again.

Is OPERATION

lamp blinking?

YES

Is it possible to

turn on power

supply by

pressing

[START/STOP]

button on

remote control?

YES

(R04, C01,

DB01, C03, R01

IC01 and T01)

are defective.

Parts

Does

transmission

mark on remote control flash normally,

and is its signal

transmitted

properly?

YES

Does

fan motor

connector

between 1

and 2

short-circuit?

Operation

Check item

Conceivable principle

cause

Measure

Item by symptoms

Remote control is

defective.

Refer to (5)

“Troubleshooting for

Remote Control.”

Unit operates

normally.

YES

Is voltage

(DC 12V or 5V)

indicated on rear of indoor control board

normal?

Is DC 310 – 340V suppalied to

primary side of

transfer s witch?

YES

Are DC 15V, DC 12V and

DC 7V

supplied to

secondary

side of transfer switch?

YES YES

NO NO

Refer to

or this problem

is one step short

of power P.C.

board block.

Turn off breaker once and turn it

on again after

removing motor.

YES

Are DC 15V,

DC 12V or

DC 7V

supplied to

secondary

side of transfer switch?

Microcomputer

is defective.

Transfer switch,

IC (IC01) for

power supply or

fan motor is

defective.

Replace main

P.C. board.

Replace motor.

• Be sure to disconnect the motor connector CN10 after shut off the power supply, or it will be a cause of damage of the motor.

– 85 –

(2) Power is not turned on though Indoor P.C. board is replaced <Confirmation procedure>

Turn on power supply.

Does operation lamp flash?

YES YES

NO NO

Is wired correctly to white and black

lead wires of terminal board?

Correct wiring.

To item of

“Power is not turned on”.

– 86 –

(3) Only indoor fan motor does not operate.

1 Is it possible to detect the power supply voltage (200 – 240V) between 1 and 2 on the terminal block? 2 Does the indoor fan motor operate in cooling operation?

(In heating operation, the indoor fan motor does not operate for

Operation

approximately 5 minutes after it is turned on, to prevent a cold air from blowing in.)

Turn off power

supply once, and

turn it on again.

Check item

Conceivable principle

cause

Measure

Item by symptoms

Does

compressor

continue to

operate?

Start to operate

indoor unit in

cooling operation

at airflow

level “LOW”.

Does indoor fan operate?

YES

Change airflow

level to “High”.

Is it possible to change airflow

level to “High”?

YES

Is it possible to detect

DC 1V or more between

and 3dof motor

connector (CN10).

Is it possible to detect DC

310 – 340V between

and 3d of motor

connector (CN10).

(Motor connection condition)

Is it possible to detect DC 15V

between 4

motor connector (CN10).

Start to operate the indoor unit. At this time, is it possible to detect DC 1V or

more between 5e and 3d

of motor connector (CN10)?

Is it possible to rotate cross-

flow fan by hand properly?

YES

and 3d of

YES

Turn off indoor unit

and remove connector

from motor. Then press

START/STOP button

on remote control to

stop blinking lamp on

indoor unit.

Is it possible to detect

DC 15V between 4

and 3d of motor

connector (CN10).

Turn off indoor unit

and remove connector

from motor.

Then start to operate

indoor unit with remote control.

Replace indoor

fan motor.

Replace main

P.C. board.

Fan motor

operates normally.

Turn off indoor unit and rotate

cross-flow fan by hand when the

unit is on standby. At this time,

is it possible to detect DC 1V or

more between 5e and 3

of motor connector (CN10).

YES

– 87 –

Start to operate the indoor

unit in except heating

operation. At this time, is it

possible to detect DC 1V

or more between 5e and

3d of motor connector

(CN10)? (Check this

condition within 15 seconds

after starting unit.)

YES

Replace bearing.

(4) Indoor fan motor starts rotating by turning on power supply alone

<Cause>

The IC is built in the indoor fan motor. Therefore the P.C. board is also mounted to the inside of the motor. If the P.C. board is soldered imperfectly or the IC is defective, the fan motor may automatically rotate by turning

on power supply.

(1) Rem

ove the front panel.(Remove 4 screws.) (2) Remove cover of the fan motor lead wires. (3) Check DC voltage with CN10 connector while the fan rotating.

NOTE :

• Do not disconnect the connector while the fan rotates.

• Use a thin tester rod.

P.C. board

Indoor fan starts rotating when power supply breaker is turned “ON”.

CN10

(Check output voltage (DC) of the fan motor on P.C. board.)

Measure the voltage of the motor connector

CN10 pin 2 (GND : Black) and pin 3 (V line : Yellow)

under condition that the indoor fan rotates.

Above DC 0.4V

P.C. board is defective.

Below DC 0.4V

Motor is defective.

Yellow

Black

6 (Blue)

5 (Yellow)

4 (Blue) 3 (Yellow)

2 —

1 (Red)

– 88 –

(5) How to examine whether remote controller is good or bad

• Does setting (A/B) of the remote controller selection match with that indoor unit?

Operation

Check Items

Considerable main cause

Measures

Item by symptom

Is there direct sunlight on the receptor of the air conditioner?

YES

fluorescent light

Is there any

thyristor near by?

YES

Press the START/STOP button.

Does the transmission

indicator of remote

controller light?

YES

Is operation

possible when the

transmitter is moved

nearer to the infrared

signal receiver of the

air conditioner?

YES

Battery life

There is no beep from the indoor unit. The operation lamp of the air conditioner main unit does not light.

Short-circuit ACL switch with a coin or others at rear side of remote controller.

Push the START/ STOP button

Avoid direct sunlight.

Keep the air

conditioner away

from thyristor

fluorescent light.

Is Temporary Cool

operation possible when

keeping the temporary

switch of the air conditioner

main unit pushed for 10 seconds or more?

YES

Can any signal tone be heard in a transistor radio when transmitting

within 5cm distance

from the radio?

YES

Replace

P.C. board.

Replace the battery.

indicator light?

receiving sound

and operation?

Normal

Does the

transmission

YES

Is there any

YES

Remote controller

is failure.

– 89 –

10-5-2.Wiring Failure (Interconnecting and Serial Signal Wire)

(1) Outdoor unit does not operate

1) Is the voltage between

and  of the indoor terminal block varied?



Confirm that transmission from indoor to outdoor is correctly performed based upon the following diagram.

NOTE:

• Measurement should be performed 2 minutes and 30 seconds after starting of the operation.

• Be sure to prepare a diode for judgment.

Terminal block at indoor side

Red

White

Terminal block

S5277G

Tester

S5277G or equivalent (G or J type) (Diode with rated voltage of 400V or more is acceptable.)

Fig. 11-5-1

Normal time : Voltage swings between DC15 and 60V. Abnormal time : Voltage does not vary.

(2) Outdoor unit stops in a little while after operation started <Check procedure> Select phenomena described belo w .

(1) The outdoor unit stops 10 to 20 minutes after operation started, and 10 minutes or more are required to

restart the unit.

Gas circulation amount is down.

Measure gas pressure.

Thermo. operation of compressor

Gas shortage Gas leak Pipe clogging

(2) If the unit stops once, it does not operate until the power will be turned on again.

To item of Compressor does not operate.

(3) The outdoor unit stops 10 minutes to 1 hour after operation started, and an alarm is displayed.

(Discharge temp. error check code 03, 1E) Gas leak

P.M.V. is def ectiv e. Miswiring of connecting wires of indoor/outdoor units Clogging of pipe and coming-off of TG, TC sensors

– 90 –

10-6. Trouble Diagnosis by Outdoor LED

For the outdoor unit, the self-diagnosis is possible by LED (Yel) and four LEDs (Red).

• LED (Yel) (D800) and LEDs (Red) (D801 to D804) are provided on the sub-control board under surface of the inverter, and as shown below, they are checked from the wiring port when removing the wiring cover.

1. If a trouble occurs, LED (Red or Yel) goes on

according to the trouble as described in the table below.

2. When two or more troubles occur , LEDs go on

cyclically.

3. Usually, LEDs (Red or Yel) go off.

IGBT : Insulated Gate Bipolar Transistor, P.M.V. : Pulse Modulating Valve

2, *3

LED display

D800 D801 D802 D803 D804

●●●●●

●○●●● ○○●●●

●●○●● ○●○●●

●○○●● ○○○●●

●●●○● ○●●○●

●○●○● ○○●○●

●●○○●

○●○○●

○○○○● ○●●●○

○○●●○

●●●●○

●○○●○

○○○●○

●●●○○ ○○●○○

Indoor

check code

—

14 16 17

19 1A 1B 1D 1E

18 1C 1C 1C 1C 1C

1C 1C

LED

D800 D801 D802 D803 D804

Red

Yellow

Fig. 10-6-1

○ : LED ON, l : LED OFF

Description

During normal operation IGBT short circuit, compressor motor rare short Position-detect circuit error Current-detect circuit error Compressor system error Discharge temp. sensor (TD) error Outdoor fan error Outside temp. sensor (TO) error Compressor lock Discharge temp. sensor error, gas leakage Compressor break down Suction temp. sensor (TS) error Evaporator temp. sensor (TE) error A room gas side temp. sensor (TGa) error B room gas side temp. sensor (TGb) error C room gas side temp. sensor (TGc) error D room gas side temp. sensor (TGd) error Gas leakage, P.M.V. sensor error Indoor heat exchanger sensor (TC) disconnection,

P.M.V. sensor error Indoor/outdoor miswiring, gas leakage, TC sensor

disconnection, P.M.V. sensor error Communication error between MCU

1 : Back-up operation is performed without block display of the indoor unit.

2 : Operated normally when the air conditioners in other rooms are driven.

3 : 4 units Multi model only

4 : Heat pump model only

– 91 –

10-7. How to Diagnose Trouble in Outdoor Unit

10-7-1. Summarized Inner Diagnosis of Inverter Assembly

Diagnosis/Process flowchart Item

Preparation

Remove connector of compressor.

Check 30A fuse

(Part No.F01).

Check

terminal voltage

of electrolytic

capacitor.

Replace fuse.

Check

electrolytic

capacitor, diode

block, etc.

Check

electrolytic

capacitor, diode

block, etc.

Check

Contents

Tu r n “OFF” the power breaker, and remove 3P connector which connects inverter and compressor.

• Check whether 30A fuse on the control board assembly is blown or not. (F01)

Summary

If fuse was blown, be sure to check the electrolytic capacitor and diode block. (DB01)

• Connect discharge resis-

tance (approx. 100Ω40W) or soldering iron (plug) between +, – terminals of the electrolytic capacitor (760µF) of C13 (with printed CAUTION HIGH VOLTAGE) on P.C. board.

Discharging position (Discharging period 10 seconds or more)

Plug of soldering iron

Does outdoor

fan rotate?

YES

CN300 of outdoor fan

tester, check resistance

Replace outdoor fan motor.

Does LED on control board flash or go on?

Remove connector

motor, and using a

value between every

phases at motor side.

YES

CBA

Operation

Measurement

Check

Stop

Check

Measurement

Turn on power breaker, and operate the air conditioner in COOL mode by short-circuit of the timer.

Measure terminal voltage of the electrolytic capacity.

760µF:400WV x 4

After operation, turn off the power breaker after 2 minutes 20 seconds passed, and discharge the electrolytic capacity by soldering iron. Check voltage between motor phases.

• Is not winding between

Q – R, R – S, or Q – S

opened or short-circuited?

• Is not frame grounded with

Q, R, or S?

OK if 760µF → DC280V

Remove CN300 while pushing the part indicated by an arrow.

→ Resistance between

phases should be approx. 25 to 55Ω.

→ Should be 10MΩ or more.

– 92 –

Diagnosis/Process flowchart Item

Contents

Summary

Replace outdoor fan motor.

Check

compressor

winding

resistance.

Check

winding of

compressor.

Check

fan motor

position

detect signal.

Replace control board assembly.

CBA

Replace compressor.

Check

Operation

Check

Check winding resistance between phases of compressor, and resistance between outdoor frames by using a tester.

• Is not grounded.

• Is not shor t-circuited

between windings.

• Winding is not opened. Remove connector CN300 of

the outdoor fan motor, turn on the power breaker, and perform the operation. (Stops though activation is prompted.)

Check operation within 2 minutes 20 seconds after activation stopped.

While connecting connector 5P (CN301) for position detection, using a tester, measure voltage between

 – . Between  –  : 5V

→ OK if 10MΩ or more



→ OK if 0.2Ω (under 20°C)



(Check by a digital tester.)



a) One or two of three volt-

ages should be 5V, and others should be 0V. (When all are 0V or 5V, it is not accepted.)

b) When rotating the fan

slowly with hands, the voltage between pins should move from 0V to 5V.

(Check it with an analog

tester.)

Replace

control board.

Replace

compressor.

10-8. How to Check Simply the Main

Parts

10-8-1. How to Check the P.C. Board

(Indoor Unit)

(1) Operating precautions

1) When removing the front panel or the P.C . board, be sure to shut off the power supply breaker.

2) When removing the P.C. board, hold the edge of the P. C. board and do not apply force to the parts.

3) When connecting or disconnecting the connectors on the P.C. board, hold the whole housing. Do not pull at the lead wire.

(2) Inspection procedures

1) When a P.C. board is judged to be defective, check for disconnection, burning, or discoloration of the copper foil pattern or this P.C. board.

2) The P.C. board consists of the following 2 parts

a. Main P.C. board part :

DC power supply circuit (5V, 12V, 35V), Indoor fan motor control circuit, CPU and peripheral circuits, buzzer, and Driving circuit of top/bottom louvers

b. Indication unit of infrared ray receiving

Infrared ray receiving circuit, LED :

To check defect of the P.C. board, follow the procedure described below.

– 93 –

(3) Check procedures

Table 10-8-1

No.

Shut off the power supply and

remove the P.C. board assembly from the electronic parts base.

Remove the connecting cable from the terminal block.

Remove the connector for the

2 Voltage check

motor, and turn the power on. If the OPERATION lamp flashes

(0.5 sec. : ON, 0.5 sec. : OFF) when the power turning on, the checking points described as 1-3 of right column are not necessary to perform.

Start the operation with the system

which the time of the restart delay timer is shortened.

Procedure

Check point (Symptom)

1.Is the fuse blown?

1.Between TP1 and TP2 (220–240V AC)

2.Between + and - of C02 (310 to 340V DC)

Between 35V and GND

Between 12V and GND

Between 5 V and GND

1.All indicators light for 3 sec.

2. Indicators do not indicate normally after approximate 3 sec.

Causes

1.*Application of shock voltage. Overload by short-circuit of the

parts.

1.*AC power cord is defective. Poor contact of the terminal plate.

Miss wiring of the power relay.

Capacitor (C01, C15) is defective.

Line filter (L01) is defective.

Resistor (R01) is defective.

Diode (DB01) is defective.

3.IC01, IC02, T01 are defective.

4.IC01, IC02, T01, F03 are defective.

5.IC01, IC02, T01, F02, Q29, IC03 are

defective.



Defective indicator, or poor



housing assembly. (CN13)



Make the operation status by pressing

4 1.The temperature of the indoor heat

once the START/STOP button.

1.The time of the restart delay timer is shortened.

2.Cool operation

3.Air volume [AUTO]

4. Make the setting temperature lower enough than room temperature.

5.Continuous operation.

Turn the power on after connecting

5 1.The voltage of DC 35V is not

the motor connector. Start the operation with the following

condition.

1.Operation [Cooling]

2.Airflow [High fan]

3.Continuous operation

1.Compressor does not operate.

2. OPERATION lamp flashes.

measured between the red and black of the motor terminals.

2. Motor does not rotate. (The key operation is accepted.)

3. The motor rotates, but it vibrates too much.

exchanger is abnormally low.

2.Poor contact of the heat exchanger sensor. (The connector is disconnected.) (CN01)

3.Heat exchanger sensor, main P.C. board are defective.

4.Main P.C. board is defective.

1.Indoor fan motor is defective. (Protecting operation on the P.C. board.)

2. Poor contact of the motor connector.

3.P.C. board is defective.

– 94 –

10-8-2. P.C. Board Layout

– 95 –

100

90 80 70 60 50 40 30

Resistance value (k )

20 10

0102030 4050

Temperature (˚C)

TA, TC, TO, TGa, TGb, TGc, TGd

TD : Discharge temp. sensor TA : Room temp. sensor TC : Heat exchanger temp. sensor TO : Outdoor temp. sensor TGa : Gas side temp. sensor TGb : Gas side temp. sensor TGc : Gas side temp. sensor TGd : Gas side temp. sensor

– 96 –

10-8-3. Indoor Unit (Other Parts)

No.

Room temp. (TA) sensor

Part name

Heat exchanger (TC) sensor

Remote controller

Louver motor MP-24GA

Indoor fan motor

10-8-4. Outdoor Unit

Checking procedure

Disconnect the connector and measure the resistance value with tester. (Normal temp.)

Temperature

Sensor

TA, TC (kΩ)

10°C 20°C 25°C 30°C 40°C

20.7 12.6 10.0 7.9 4.5

To item of How to judge whether remote control is good or bad of the Judgment of trouble by symptom.

Measure the resistance value of each winding coil by using the tester. (Under normal temp. 25°C)

Position Resistance value

White

Yellow Yellow Yellow Yellow

2 3 4 5

1 to 4 1 to 6 2 to 3 2 to 5

130 ± 10 Ω

Since judgment of DC motor is difficult on the single motor, refer to 10-5-1. (3).

No.

Compressor

Part name

(Model : DA220A2F-20L)

Outdoor fan motor (Model : ICF-140-60-1)

Compressor thermo. Bimetal type (Model : US622KXTMQO)

Outdoor temperature sensor (TO), pipe temperature sensor (TGa, TGb, TGc, TGd), discharge temperature sensor (TD), suction temperature sensor (TS), evaporator temper ature sensor (TE),

Checking procedure

Measure the resistance value of each winding by using the tester.

Red

White Black

Position Resistance value

Red - White 0.2 ± 0.01 Ω White - Black 0.2 ± 0.01 Ω Black - Red 0.2 ± 0.01 Ω

Under 20°C

Measure the resistance value of winding by using the tester.

Red

1 Yellow 4 Pink

5 Gray

Position Resistance value

Yellow- Pink 5 to 20 kΩ

For details, refor to Section 10-9. Check conduction by using the tester.

Disconnect the connector, and measure resistance value with the tester. (Normal temperature)

Sensor

TD (kΩ)

TO , TE, TS (kΩ)

TGa, TGb, TGc, TGd (kΩ)

10°C 20°C 25°C 40°C 50°C

105 64 51 27 18

20.6 12.6 10.0 5.1 3.4

20.0 12.5 10.0 5.3 3.6

– 97 –

10-8-5. Checking Method for Each Part

No.

Part name

Electrolytic capacitor (For raising pressure, smoothing)

Converter module

Checking procedure

1. Turn OFF the power supply breaker.

2. Discharge all four capacitors completely.

3. Check that safety valve at the bottom of capacitor is not broken.

4. Check that vessel is not swollen or exploded.

5. Check that electrolytic liquid does not blow off.

6. Check that the normal charging characteristics are shown in continuity test by the tester.

C10 C11 C12 C13

Heat sink IGBT side

MCC-1359 Soldered surface

Case that product is good

Pointer swings once, and returns slowly. When performing test once again under another polarity, the pointer should return.

C12, C13, C14, C15 → 500µF/400V

1. Turn OFF the power supply breaker.

2. Discharge all four capacitors completely.

3. Check that the normal rectification characteristics are shown in continuity test by the tester.

Mark

IGBT module

+ ~ – ~

Diode check

Tester rod

–

+ ~

–

Resistance value

in good product

50k or more

in trouble)

E G

+ ~

Tester rod

+ – ~

– ~

E E

IGBT check

1. Turn OFF the power supply switch.

2. Discharge all four electrolytic capacitors completely.

3. Execute continuity test with a tester.

–

BZ BY BX BW

–

Tester rod

Case that product is good

–

or more

UVW UVW

WVUWVU

100k to 300k

–

Resistance value

in good product

50k (0

W V U

E G

or more

in trouble)

BV BU

–

200k to 300k

– 98 –

10-9. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad

1. Symptom

• Outdoor fan motor does not rotate.

• Outdoor fan motor stops within several tens seconds though it started rotating.

• Outdoor fan motor rotates or does not rotate according to the position where the fan stopped., etc.

Remote control check code “02 : Outdoor block, 1A : Outdoor fan drive system error”

2. Cause

The following causes are considered when the outdoor fan motor does not normally rotate.

1) Mechanical lock of the outdoor fan motor

2) Winding error of the outdoor fan motor

3) Position-detect circuit error inside of the outdoor fan motor or

4) Motor drive circuit error of the outdoor P.C. board

3. How to simply judge whether outdoor fan motor is good or bad

Turn OFF the breaker.

Disconnect two connectors (CN300 and CN301)

of the outdoor fan motor from the inverter.

Does the fan rotate without trouble

when rotating it with hands?

YES

If the resistance value between

1 (Red lead) – 2 (White lead) 2 (White lead) – 3 (Black lead) 3 (Black lead) – 1 (Red lead)

If the resistance value between

1 (Yellow lead) – 4 (Pink lead)

(CN301 : Motor position detection)

of the connector

(CN300 : Motor winding)

is 25 to 55

of the connector

is 5k to 20k

Fan motor is normal.

(Outdoor P.C. board error)

, it is normal.

YES

, it is normal.

YES

CN300

Fan motor error

NOTE :

However, GND circuit error inside of the motor may be accepted in some cases when the above check is performed.

When the fan motor does not become normal even if P.C. board is replaced, replace the outdoor fan motor.

– 99 –

11. HOW TO REPLACE THE MAIN PARTS

6 2-Screws

2 4-Screws

2 2

11-1. Indoor Unit

No. Part name Procedures Remarks

1 Front panel

2 Electrical part

How to remove the front panel

1) Stop operation of the air conditioner and turn off its main power supply.

2) Pull the air inlet grille toward you to open it and remove the air inlet grille. Then remove the 4 screws fixing the front panel.

3) First open the horizontal louver, and then remove the front panel from the back body by pulling it toward you.

How to mount the front panel

Push the front panel back in and make sure all hooks are locked.

How to remove the electrical part.

1) Remove the front panel with procedure 1.

2) Remove the screw holding the electrical part cover.

3) Remove the drain guide.

4) Disconnect the 2 connectors (3P) for the fan motor and the connector (5P) for the louver motor from the P.C. board assembly.

5) Pull out the TC sensor from the sensor holder.

6) Remove the screw for the ground connection, remove the 2 screws for the electrical part box and remove the screw from the LED unit. Then remove the LED unit and the electrical part box from the main unit.

How to mount the electrical part.

1) To put back the electrical part box, lock it to the upper hook of the back body.

2) Tighten the 2 screws on the electrical part box.

3) Connect the 3 connectors and arrange the wiring same as original condition and then tighten the screw from the LED unit to the back body.

4) Attach the TC sensor to the holder.

5) Tighten the screw for the ground connection.

6) Assemble the drain guide (the TC sensor wire should be covered by the drain guide).

Tighten the screw on the electrical part cover.

3 Drain guide

6 Screws

2 Screws

5 TC Sensor

3-Connectors

3 Horizontal

louver

1) Remove the front panel and the electrical part following procedure 2.

2) Remove the center shaft of the horizontal louver from the back body.

3) Remove the left shaft from the back body.

4) Remove the horizontal louver from the back body.

– 100 –

3 Left shaft

2 Center shaft

Toshiba RAS-M13UKCV-E, RAS-3M26YAV-E, RAS-M13UKV-E, RAS-M16UKV-E, RAS-M10UKV-E DATA BOOK

Specifications and Main Features

Frequently Asked Questions

User Manual

4. WIRING DIAGRAM

5. SPECIFICATIONS OF ELECTRICAL PARTS

6. REFRIGERANT CYCLE DIAGRAM

10. HOW TO DIAGNOSE THE TROUBLE