SERVICE MANUAL SPLIT TYPE

Toshiban lämmitys- ja jäähdytyslaitteiden jälleenmyyjä pääkaupunkiseudulla on Jäähdytinpalvelu RefGroup Oy

FILE NO. A02-014

Revised 3/June/2004

SERVICE MANUAL

SPLIT TYPE

RAV-SM560AT-E/RAV-SM800AT-E

RAV-SM560UT-E/RAV-SM800UT-E

RAV-SM560BT-E/RAV-SM800BT-E

RAV-SM560KRT-E/RAV-SM800KRT-E

RAV-SM560XT-E/RAV-SM800XT-E

R410A

www.ilmalämpöpumput.com

PRINTED IN JAPAN,

June

,200

4

ToMo


CONTENTS

1.

SPECIFICATIONS ................................................................................................ 3

2.

AIR DUCTING WORK ........................................................................................ 12

3.

CONSTRUCTION VIEWS (EXTERNAL VIEWS) ............................................... 13

4.

SYSTEMATIC REFRIGERATING CYCLE DIAGRAM ....................................... 20

5.

WIRING DIAGRAM ............................................................................................ 22

6.

SPECIFICATIONS OF ELECTRICAL PARTS ................................................... 28

7.

REFRIGERANT R410A ..................................................................................... 30

8.

CONTROL BLOCK DIAGRAM .......................................................................... 38

9.

CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS .................... 48

10.

TROUBLESHOOTING ....................................................................................... 65

11.

REPLACEMENT OF SERVICE INDOOR P.C. BOARD ..................................... 88

12.

SETUP AT LOCAL SITE AND OTHERS ........................................................... 92

13.

ADDRESS SETUP ........................................................................................... 103

14.

TROUBLESHOOTING <WALL TYPE> ............................................................ 108

15.

DETACHMENTS............................................................................................... 135

16.

EXPLODED VIEWS AND PARTS LIST ........................................................... 168

– 2 – www.ilmalämpöpumput.com


1. SPECIFICATIONS

1-1. Indoor Unit

1-1-1. 4-Way Air Discharge Cassette Type

Model name

Standard capacity (Note 1) (kW)

Heating low temp. capacity (Note 1) (kW)

Energy consumption effect ratio (Cooling)

Power supply

Running current

Electrical characteristics

Power consumption

(Low temp.)

Appearance

Outer dimension

Power factor

Main unit

Ceiling Panel

(Sold separately)

Model

Panel color

Main unit

Height

Width

Depth

Height

Ceiling panel

(Sold separately)

Width

Depth

Total weight

Main unit

Ceiling panel

Heat exchanger

Soundproof/Heat-insulating material

Fan

Fan unit Standard air flow High (Mid./Low) (m³/h)

Motor (W)

Air filter

Controller (Sold separately)

Connecting pipe

Sound level

Gas side

Liquid side

Drain port

High (Mid./Low) (Note 2)

(mm)

(mm)

(Nominal dia.)

(dB•A)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(kg)

(A)

(kW)

(kW)

(%)

Cooling

RAV-SM560UT-E

Heating Average Cooling

RAV-SM800UT-E

Heating Average

5.3

5.6

(1.5 – 5.6) (1.5 – 6.3)

3.01 [B]

7.1

(2.2 – 8.0)

8.0

(2.2–9.0)

4.9

3.90 [A] 3.46

3.03 [B]

1 phase 230V (220 – 240V) 50Hz

7

3.45 [B]

8.42–7.72

6.78–6.29

1.76

1.435

1.89

11.32–10.37 11.22–10.28

2.34

2.73

2.32

3.24

95 95 94

Zinc hot dipping steel plate

RBC-U21PG (W) E

Moon-white (Muncel 2.5GY 9.0/0.5)

94

256

840

840

53

950

950

21 22

4.5

Finned tubu

Inflammable polyethylene foam

Turbo fan

Foamed polyethylen

32

1050 1200

60

Attached ceiling panel

RBC-AMT21E

Ø12.7 (1/2”)

Ø6.4 (1/4”)

29

25 (Polyvinyl chloride tube)

27 34

Ø15.9 (5/8”)

Ø9.5 (3/8”)

31 28

Note 1 : The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8616 based on the reference piping. The reference piping consists of 3 m of main piping and 2 m of branch piping connected with 0 meter height.

Note 2 : The sound level is measured in an anechoic chamber in accordance with JIS B8616. Normally, the values measured in the actual operating environment become larger than the indicated values due to the effects of external sound.

Note

: Rated conditions Cooling : Indoor air temperature 27°C DB/19°C WB, Outdoor air temperature 35°C DB

Heating : Indoor air temperature 20°C DB, Outdoor air temperature 7°C DB/6°C WB



• Operation characteristic curve

<Cooling>

14

12

10

RAV-SM800UT-E

8

6

4

2

0

0

RAV-SM560UT-E

•

Conditions

Indoor : DB27 C/WB19 C

Outdoor : DB35 C

Air flow : High

Pipe length : 7.5m

230V

15

20 40 60 70 80

Compressor speed (rps)

100

<Heating>

16

14

12

10

8

6

4

2

0

0

RAV-SM800UT-E

RAV-SM560UT-E

• Conditions

Indoor : DB20 C

Outdoor : DB7 C/WB6 C

Air flow : High

Pipe length : 7.5m

230V

15

20 40 60


80 90 100

• Capacity variation ratio according to temperature

<Cooling> <Heating>

105

100

95

90

85

80

75

70

65

60

55

• Conditions


Indoor air flow : High

Pipe length : 7.5m

50

32 33 34 35 36 37 38 39 40 41 42 43

Outsoor temp. ( C)

120

110

100

90

80

70

60

50

40

30

20

10

• Conditions

Indoor : DB20 C


Pipe length : 7.5m

0

-14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10

Outsoor temp. ( C)



1-1-2. Concealed Duct Type

Model name




Power supply

Running current


Power consumption

(Low temp.)

Power factor

Main unit

Appearance

Ceiling Panel

(Sold separately)

Model

Panel color

Height

Main unit Width

Outer dimension

Total weight

Depth

Height

Ceiling panel

(Sold separately)

Width

Depth

Main unit

Ceiling panel

Heat exchanger


Fan


Motor (W)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(kg)

(A)

(kW)

(kW)

(%)

Air filter


Connecting pipe

Sound level

Gas side

Liquid side

Drain port


(mm)

(mm)

(Nominal dia.)

(dB•A)

Cooling

RAV-SM560BT-E


RAV-SM800BT-E

Heating Average

5 5.6

(1.5 – 5.6) (1.5 – 6.3)

7.1

(2.2 – 8.0)

8

(2.2–9.0)

4.6

3.27 [C]

6.2

3.21 [C] 2.60 [D] 2.94

2.73 [D]

1 phase 230V (220 – 240V) 50Hz

9.19–8.42

8.18–7.50

12.57–11.52 12.04–11.04

1.92

1.71

2.6

2.49

95

1.78

2.62

95 94

Zinc hot dipping steel plate

94

2.97

——

——

320

700

800 (+7.5)

——

——

——

39 53

——

Finned tubu


Turbo fan

Foamed polyethylen

840

60

1140

100

42

Attached main unit

RBC-AMT21E

Ø12.7 (1/2”)

Ø6.4 (1/4”)

39


36 43

Ø15.9 (5/8”)

Ø9.5 (3/8”)

40 37



Note





•

Operation characteristic curve

<Cooling>

14

12

10

RAV-SM800BT-E

8

6

4

2

0

0

RAV-SM560BT-E

• Conditions


Outdoor : DB35 C

Air flow : High

Pipe length : 7.5m

230V

15

20 40 60 70 80


100

<Heating>

16

14

12

10

8

6

4

2

0

0

RAV-SM800BT-E

RAV-SM560BT-E

• Conditions

Indoor : DB20 C


Air flow : High

Pipe length : 7.5m

230V

15

20 40 60


80 90 100

•

Capacity variation ratio according to temperature


105

100

95

90

85

80

75

70

65

60

55

• Conditions



Pipe length : 7.5m

50

32 33 34 35 36 37 38 39 40 41 42 43

Outsoor temp. ( C)

120

110

100

90

80

70

60

50

40

30

20

10

• Conditions

Indoor : DB20 C


Pipe length : 7.5m

0

-14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10

Outsoor temp. ( C)



1-1-3. High-Wall Type

Model name




Power supply

Running current


Power consumption

(Low temp.)

Power factor

Main unit

Appearance

Ceiling Panel

(Sold separately)

Model

Panel color

Height

Main unit Width

Depth

Outer dimension

Total weight

Height

Ceiling panel

(Sold separately)

Width

Depth

Main unit

Ceiling panel

Heat exchanger


Fan unit

Fan

Standard air flow High (Mid./Low) (m³/h)

Motor (W)

Air filter


Connecting pipe

Sound level

Gas side

Liquid side

Drain port


(mm)

(mm)

(Nominal dia.)

(dB•A)

(A)

(kW)

(kW)

(%)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(kg)

Cooling

RAV-SM560KRT-E


RAV-SM800KRT-E

Heating Average

5.1

5.6

(1.5 – 5.6) (1.5 – 6.3)

6.7

(2.2 – 8.0)

8

(2.2–9.0)

4.9

3.29 [C]

5.8

3.00 [D] 2.93 [D] 3.11

2.46 [E]

1 phase 230V (220 – 240V) 50Hz

8.33–7.63

8.138–7.46

13.15–12.05 12.91–11.84

1.74

1.7

2.72

2.67

1.95

2.21

3.24

95 95 94 94

Pure white

——

——

298

45

998

208

——

——

——

12

——

Finned tubu

Inflammable polyethylene foam Foamed polyethylen

Turbo fan

840 1110

30

Attached main unit

Wired remote controller RBC-AMT21E

Ø12.7 (1/2”)

Ø6.4 (1/4”)

41


36 45

Ø15.9 (5/8”)

Ø9.5 (3/8”)

41 36



Note





• Operation characteristic curve

<Cooling>

14

12

10

RAV-SM800KRT-E

8

6

4

2

0

0

RAV-SM560KRT-E

•

Conditions


Outdoor : DB35 C

Air flow : High

Pipe length : 7.5m

230V

15

20 40 60 70 80


100

<Heating>

16

14

12

10

8

6

4

2

0

0

RAV-SM800KRT-E

RAV-SM560KRT-E

• Conditions

Indoor : DB20 C


Air flow : High

Pipe length : 7.5m

230V

15

20 40 60


80 90 100

• Capacity variation ratio according to temperature


105

100

95

90

85

80

75

70

65

60

55

• Conditions



Pipe length : 7.5m

50

32 33 34 35 36 37 38 39 40 41 42 43

Outsoor temp. ( C)

120

110

100

90

80

70

60

50

40

30

20

10

• Conditions

Indoor : DB20 C


Pipe length : 7.5m

0

-14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10

Outsoor temp. ( C)



1-1-4. Flexible Type

Model name




Power supply

Running current


Power consumption

(Low temp.)

Power factor

Appearance

Main unit

Ceiling Panel

(Sold separately)

Model

Panel color

Outer dimension

Total weight

Height

Width Main unit

Depth

Height

Ceiling panel

(Sold separately)

Width

Depth

Main unit

Ceiling panel

Heat exchanger


Fan


Motor (W)

Air filter


Gas side

Connecting pipe

Liquid side

Drain port

Sound level High (Mid./Low) (Note 2)

(mm)

(mm)

(Nominal dia.)

(dB•A)

(A)

(kW)

(kW)

(%)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(kg)

Cooling

RAV-SM560XT-E


RAV-SM800XT-E

Heating Average

5.1

(1.5 – 5.6)

5.6

(1.5 – 6.3)

4.9

6.7

(2.2 – 8.0)

8

(2.2–9.0)

5.8

3.24

2.93 [D]

1.95

3.29 [C] 3.11

2.46 [E]

1 phase 230V (220 – 240V) 50Hz

3.00 [D]

8.33–7.63

8.138–7.46

1.74

1.7

13.15–12.05 12.91–11.84

2.72

2.21

2.67

95 95 94 94

Pure white

——

——

298

998

208

——

39

——

——

12

——

Finned tubu


Cross flow fan

Foamed polyethylen

840 1110

30

Attached main unit

Wired remote controller RBC-AMT21E

Ø12.7 (1/2”) Ø15.9 (5/8”)

Ø6.4 (1/4”)


Ø9.5 (3/8”)

36 36 45 41 36



Note





•

Operation characteristic curve

<Cooling>

14

12

10

8

RAV-SM800XT-E

6

4

2

0

0

RAV-SM560XT-E

• Conditions


Outdoor : DB35 C

Air flow : High

Pipe length : 7.5m

230V

15

20 40 60 70 80


100

<Heating>

14

12

10

8

6

4

2

0

0

RAV-SM800XT-E

RAV-SM560XT-E

• Conditions

Indoor : DB20 C


Air flow : High

Pipe length : 7.5m

230V

15

20 40 60


80 90 100

•

Capacity variation ratio according to temperature


105

100

95

90

85

80

75

70

65

60

55

• Conditions



Pipe length : 7.5m

50

32 33 34 35 36 37 38 39 40 41 42 43

Outsoor temp. ( C)

120

110

100

90

80

70

60

50

40

30

20

10

• Conditions

Indoor : DB20 C


Pipe length : 7.5m

0

-14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10

Outsoor temp. ( C)



1-2. Outdoor Unit

Model name

Appearance

Power supply

Compressor

Type

Motor

Pole

Refrigerant charged

Refrigerant control

Standard length

Pipe

Max. total length

Over 20m

Outer dimension

(kW)

(kg)

(m)

Height difference

Outdoor lower

Outdoor higher

Height

Width

(m)

(m)

(mm)

(mm)

Total weight

Heat exchanger

Fan unit

Connecting pipe

Protection device

Depth

Fan

Standard air flow High

Motor

Gas side

Liquid side

(mm)

(kg)

(m

³

/h)

(W)

(mm)

(mm)

RAV-SM560AT-E RAV-SM800AT-E

Silky shade (Muncel 1Y8.5/0.5)

1 phase 230V (220 – 240V) 50Hz

(Power exclusive to outdoor is required.)

Hermetic compressor

1.1

1.6

4 poles

R410A 0.9

R410A 1.5

Pulse motor valve

20 (without additional charge)

30

Add 20g/m (Max. 200g)

50

Add 40g/m (Max. 1200g)

30

50

595

780

795

780

270

35

270

55

Finned tube

Propeller fan

2400

43

Ø12.7 (1/2”)

Ø6.4 (1/4”)

3400

63

Ø15.9 (5/8”)

Ø9.5 (3/8”)

Discharge temp. sensor

Over-current sensor

Compressor thermo.

Sound level

(Note 2)

High (Mid./Low)

(Cooling/Heating)

(dB•A) 46/48 45/50

Note 1 : The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8616 based on the reference piping. The reference piping consists of 3 m piping connected with 0 meter height.


Note





2. AIR DUCTING WORK

2-1. Static Pressure Characteristics of Each Model

Fig. 1 RAV-SM560BT-E

70% (570m

³

/h)

Standard air volume : 840m

³

/h

12

11

10

9

8

7

6

5

4

3

2

1

0

500

110% (925m

³

/h)

570 600

70% (800m

³

/h)

700 800

Air volume (m

³

/hr.)

Fig. 2 RAV-SM800BT-E

Standard air volume : 1140m

³

/h

900 925 1000

110% (1255m

³

/h)

7

6

5

4

3

2

1

0

700

12

11

10

9

8

800 900 1000 1100

Air volume (m

³

/hr.)

1200 1255 1300



3. CONSTRUCTION VIEWS (EXTERNAL VIEWS)


4-Way Air Discharge Cassette Type


200

860 to 910 Recommended external size

Check port

( 450)

Check port

( 450)

Cable draw-in port

30

Surface under ceiling

130

Refrigerant pipe connecting port A

Refrigerant pipe connecting port B

70

270

250

950 Panel external dimension

790 Hanging bolt pitch

346.5

Electric parts box


Standing

850 or less

Standing

640 or less


Indoor unit

Drain up standing size

Hanging bolt M10 or W3/8

Procured locally

256

88

150

Knockout for humidifier

105

A

SM560

Ø6.4

SM800

Ø9.5

B

Ø12.7

Ø15.9

254.5

840 Hanging bolt

480

227



35

Ceiling panel

(Sold separately)

57

57.5 25

64

120 97

35


188

Z view



Concealed Duct Type

RAV-SM560BT-E

2-Ø200

Discharge port flange

4-M10

Hanging bolt

(Procured locally)

750 ± 7.5 Hanging bolt pitch

700 Dimension of main unit

20

280 252

170

120

70

Drain up kit

(Sold separately)

60

80

For hanging bolt M10

(4-12 x 25 long hole)

Drain pipe connecting port at drain up kit side

(For polyvinyl chloride pipe

(Inner dia. 32, Nominal dia. 25))

25

75

Refrigerant pipe connecting port

(Gas side Ø12.7)

25

730

780 Ceiling opening size


565 Hanging bolt pitch

210

240

720

314.5

211

509

45

630

300

130 80

Ø125 knockout hole (Only rear side)

(For air suction)

6-Ø4 tapping screw lower hole Ø160


(Liquid side Ø6.4)

80

170

Drain pipe connecting port at main unit side



Panel

2-Ø26 power supply remote controller cord draw-out port

450


Suction port canvas

Suction panel

Plane view of main unit

Check port A

450

NOTE 1 :

For maintenance of the equipment, be sure to install a check port A at the position as shown below.

NOTE 2 :

Using the drain up kit sold separately, drain-up by 300 (mm) from drain pipe draw-out port of the main unit is necessary.

The drain-up over 300mm or more is impossible.

(Pipe side)

Discharge side



RAV-SM800BT-E

2-Ø200

Discharge port flange

4-M10

Hanging bolt

(Procured locally)

1050 ± 7.5 Hanging bolt pitch


290 290 252

20

170

120

70

Drain up kit

(Sold separately)

60

80

For hanging bolt M10

(4-12 x 25 long hole)

Drain pipe connecting port at drain up kit side



25

75


(Gas side Ø12.7)

25

1030



565 Hanging bolt pitch 210

240

720

314.5

211

509

45

630

300

130 80

Ø125 knockout hole (Only rear side)

(For air suction)

6-Ø4 tapping screw lower hole Ø160


(Liquid side Ø6.4)

80

170

Drain pipe connecting port at main unit side



Panel

2-Ø26 power supply remote controller cord draw-out port

450


Suction port canvas

Suction panel

Plane view of main unit

Check port A

450

NOTE 1 :

For maintenance of the equipment, be sure to install a check port A at the position as shown below.

NOTE 2 :

Using the drain up kit sold separately, drain-up by 300 (mm) from drain pipe draw-out port of the main unit is necessary.

The drain-up over 300mm or more is impossible.

(Pipe side)

Discharge side



High-Wall Type


998

51

Pipe port from left

(Knockout hole)

Discharge port

Z views

Suction port

50

Pipe port from right

(Knockout hole)

Pipe port from lower side

(Knockout hole)

75 56

110

20

390

490

540

998

763.5

450

Drain hose

Refrigerant pipe connecting port B

Refrigerant pipe connecting port A

20

115 100

Position of installation plate

100 115

SM560

A

Liquid Side

B

Gas Side

Ø6.4

Ø12.7

SM800

Ø9.5

Ø15.9


53 or more 53 or more

Space required for service

Z


Under Ceiling/Console Type


Front panel

1093

208

For stud bolt

(Ø8 – Ø10)

For stud bolt (Ø6)

200 Min

20

1093

1015

742

450

20

Knock out system

Grille air inlet

Back body

Installation plate

Mount plate

M10 Suspention bolt

Ø74

UNDER CEILING & CONSOLE INSTALLATION

57 18

Wireless remote control

Knock out system




RAV-SM560AT-E

A legs

Drain hole (Ø25)

83

Drain hole (2-Ø20 x 88 long hole)

600 97

115.3 125

30

(Long hole pitch F

49.5

147

B legs

Discharge guard

780

115.3

Discharge guide mounting hole

(4-Ø4 embossing)

216

Valve cover

31

23

Earth terminal

25 220

500 (Fan center dividing)

Protective net mounting hole

(2-Ø4 embossing)

43

Protective net mounting hole

(4-Ø4 embossing)

707 30

Charge port

31 134


(Ø12.7 flare at gas side)


(Ø6.4 flare at liquid side)


R15

52

36

600

2-Ø6 hole

Product external line

Ø11 x 14 U-shape hole

Details of A legs

Ø11 x 14 Ushape holes 2-Ø6 hole

308 302

Product external line

36

52

R15

600

Details of B legs

2-Ø11 x 14 U-shape holes

(For Ø8–Ø10 anchor bolt)

600

Suction port

150 or more 300 or more

150 or more

Discharge port

(Minimum distance up to wall)

500 or more

Discharge port

2-Ø11 x 14 long hole




RAV-SM800AT-E

Knockout

(For draining)

29 90

Drain hole (Ø20 x 88 burring hole)

Drain hole (Ø25 burring hole)

191

Suction port

20

Part B

(Long hole pitch for anchor bolt)

Suction port

Knockout

(For draining)

26 60

150

314

Discharge port

300

900

Part A

95

43

39 47

Handles

(Both sides)


(Ø9.5 flare at liquid side)


(Ø15.9 flare at gas side)

2

Installation bolt hole

(Ø12 x 17 U-shape holes)

Details of B part

Details of A part

Installation bolt hole

(Ø12 x 17 U-shape holes)

Discharge guide mounting hole

(4-Ø4 embossing)

28 320

300

1

27 58

161

400

2

Z

307

60

96

27

1

Knockout for lower piping

86 7

Z views

2

46

1

30 45


2-Ø12 x 17 U-shape holes


600

Suction port

150 or more

150 or more

Discharge port

(Minimum distance up to wall)

500 or more

Discharge port

2-Ø12 x 17 long hole




4. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM

Indoor Unit/Outdoor Unit

RAV-SM560UT-E, RAV-SM560BT-E, RAV-SM560KRT-E/RAV-SM560AT-E

Indoor unit

TCJ sensor

Air heat exchanger

TC sensor

Outer diameter of refrigerant pipe

Gas side

Ø

A Liquid side

Ø

B

12.7mm

6.4mm

Refrigerant pipe at liquid side

Outer dia. ØB

Refrigerant pipe at gas side

Outer dia. ØA

TS sensor

Packed valve

Outer dia. ØB

Outdoor unit

Packed valve

Outer dia. ØA

PMV

(SKV-18D26)

Max

30m

TO sensor

TD sensor

Strainer

Rotary compressor

(DA130A1F-23F)

4-way valve

(VT7101D)

Muffler

Ø19

×

L160

TE sensor

Heat exchanger

Ø8 multiple thread ripple 1 row 22 stages

FP1.3 flat fin

Distributor

Standard

Cooling Overload

Low load

Standard

Heating Overload

Low load

Pressure

(MPa) (kg/cm

²

G)

Pd Ps Pd Ps

3.1

0.9 31.9

8.9

3.6

1.0 37.1 10.4

0.9

0.7

9.1

7.1

2.3

0.6 23.6

6.2

3.3

1.2 33.2 11.8

1.7

0.2 16.4

1.8

R410A 0.9 kg

Cooling

Heating

(TD)

85

Pipe surface temperature (

°

C)

Discharge Suction

(TS)

15

Indoor heat Outdoor heat exchanger exchanger

(TC)

10

(TE)

50

Compressor revolutions per second (rps)

*

74

93

20

71

78

110

20

7

1

20

–20

15

3

39

54

26

57

5

3

19

–22

72

28

84

47

110

HIGH

HIGH

LOW

HIGH

LOW

HIGH

Indoor fan

Indoor/Outdoor temp. conditions

(DB/WB) (

°

C)

Indoor Outdoor

27/19 35/–

32/24 43/–

18/15.5

–5/–

20/–

30.–

7/6

24/18

15/– –20/

(70%)

*

4 poles are provided to this compressor.

The compressor frequency (Hz) measured with a clamp meter is 2 times of revolutions (rps) of the compressor.



Indoor Unit/Outdoor Unit

RAV-SM800UT-E, RAV-SM800BT-E, RAV-SM800KRT-E/RAV-SM800AT-E

TC sensor

Indoor unit

Air heat exchanger

TCJ sensor

Outer diameter of refrigerant pipe

Gas side

Ø

A Liquid side

Ø

B

15.9mm

9.5mm

Accumulator

(1500cc)

TS sensor

Refrigerant pipe at liquid side

Outer dia. ØB

Pd

Packed valve

Outer dia. ØB

Strainer

TO sensor

Outdoor unit

Refrigerant pipe at gas side

Outer dia. ØA

Max

50m

Ps

Packed valve

Outer dia. ØA

Modulating (PMV)

(SKV-18D26)

TD sensor

Muffler

4-way valve

(STF-0213Z)

Ø25

×

L210

Ø25

×

L160

TE sensor

Heat exchangerØ8

1 row 30 stages

FP1.3 flat fin

Rotary compressor

(DA220A2F-20L)

Capillary

Ø3

×

Ø2

×

L530

Strainer

R410A 1.5 kg

Cooling

Heating

Standard

Cooling Overload

Low load

Standard

Heating Overload

Low load

Pressure

(MPa) (kg/cm

²

G)

Pd Ps Pd Ps

3.3

0.9 33.4

8.8

3.7

1.1 37.8 11.4

1.0

0.8 10.0

7.9

2.5

0.6 25.8

6.3

3.4

1.1 34.7 11.5

2.0

0.2 20.3

2.3

Pipe surface temperature (

°

C)

Discharge Suction

(TD) (TS)

Indoor heat Outdoor heat exchanger exchanger

(TC) (TE)

Compressor revolutions per second (rps)

*

86 11 9 44 64

90

19

67

85

89

21

4

6

23

–16

18

4

42

55

34

54

8

2

16

–18

52

27

65

31

90

HIGH

HIGH

LOW

HIGH

LOW

HIGH

Indoor fan

Indoor/Outdoor temp. conditions

(DB/WB) (

°

C)

Indoor Outdoor

27/19 35/–

32/24 43/–

18/15.5

–5/–

20/–

30.–

7/6

24/18

15/– –20/

(70%)

*

4 poles are provided to this compressor.

The compressor frequency (Hz) measured with a clamp meter is 2 times of revolutions (rps) of the compressor.






5. WIRING DIAGRAM

FS

CN34

(RED)

3 3

2 2

1 1

TA

1 2

1 2

CN104

(YEL)

TCJ

1 2

1 2

CN102

(RED)

TC

1 2

1 2

CN101

(BLK)

1 2 3

CN80

(GRN)

MCC-1402

(EXCT)

1 2

CN73

(RED)

12

CN70

(WHI)

LM1

5 5

4 4

3 3

2 2

1 1

LM2

5 5

4 4

3 3

2 2

1 1

FM

5 5

4 4

3 3

2 2

1 1

CN33

(WHI)

5 5

4 4

3 3

2 2

1 1

CN333

(WHI)

5 5

4 4

3 3

2 2

1 1

CN334

(WHI)

1 1

2 2

3 3

4 4

5 5

RY

302

CN68

(BLU)

1 2

1 2

3

3

Control P.C. Board for

Indoor Unit

Fuse

F302

T3.15A

250V~

Power supply circuit

DC20V

DC15V

DC12V

DC7V

Motor drive circuit

RY

303

1 2 3

CN304

(GRY)

Motor drive circuit

DP

FM

TA

TC

TCJ

LM1,LM2

DP

FS

RY302

NOTE

: Fan motor

: Indoor temp. sensor

: Temp. sensor

: Temp. sensor

: Louver motor

: Drain pump motor

: Float switch

: Drain control relay

Fuse

F301

250V~

T6.3A

CN67

(BLK)

1 2

1 2

3

3

4

4

5

5

RED WHI BLK

1 2

P301

BLK

1 2

CN66

(WHI)

RED

Closed-end connector

3

WHI

Indoor unit earth screw

1 2 3

L N

Single phase

220 to 240V

50Hz

Serial signal

Outdoor unit earth screw

5

4

3

2

1

CN620

(BLU)

4

3

2

1

6

5

CN60

(WHI)

2

1

CN32

(WHI)

(FAN DRIVE)

4

3

2

1

6

5

CN61

(YEL)

5

4

3

2

1

CN50

(WHI)

3

2

1

CN309

(YEL)

3 3

2 2

1 1

CN41

(BLU)

BLK

BLK

B

A

BLK

WHI

2 2

1 1

CN001

(WHI)

Adapter for

Wireless Remote

Controller

BLK

2 2

1 1

CN1

(WHI)

WHI

Wired Renote

Controller

Color

Identification

BLK

BLU

RED

GRY

PNK

GRN

WHI

BRW

ORN

YEL

:

:

:

:

:

:

:

:

:

: BLACK

BLUE

RED

GRAY

PINK

GREEN

WHITE

BROWN

ORANGE

YELLOW





FM

RC

FM

RED

YEL

BLU

OPN

BLK

BRW

7

8

5

6

9

3

4

1

2

7

8

5

6

9

3

4

1

2

RED

YEL

BLU

OPN

BLK

BRW

7

8

5

6

9

3

4

1

2

7

8

5

6

9

3

4

1

2

DP

5

6

7

3

4

1

2

5

6

7

3

4

1

2

5

6

7

3

4

1

2

5

6

7

3

4

1

2

YEL

BLU

ORN

BLK

RED

CN083

(WHI)

7

8

5

6

9

3

4

1

2

7

8

5

6

9

3

4

1

2

(When selecting high-static pressure)

FS

CN030

(RED)

3 3

2 2

1 1

LM

CN033

(GRN)

3

2

1

CN068

(BLU)

3 3

2 2

1 1

7

8

5

6

9

3

4

1

2

TA TCJ TC

UL

L

M

H

1 2

1 2

CN104

(YEL)

1 2

1 2

1 2

1 2

CN102

(RED)

CN101

(BLK)

RY001

RY002

RY007

RY

004

1 2 3

CN304

(GRY)

PNL

1 2 3

CN080

(GRN)

EXCT

1 2

1 2

1 2

CN073

(RED)

CN070

(WHI)

CN060

(WHI)

4

3

2

1

6

5

OPTION

CN032

(WHI)

CN061

(YEL)

4

3

2

1

6

5

2

1

FAN

DRIVE

3 3

2 2

1 1

CN074

(WHI)

RY006

1 2 3

CN309

(YEL)

RY005

Power supply circuit

Fuse

F001

T5A

250V~

RED

1 2 3 4 5

1 2

WHI

3 4 5

CN067

(BLK)

BLK

RED

CN050

(WHI)

3 3

2 2

1 1

1 2

CN066

(WHI)

CN041

(BLU)

B

A

WHI

Closed-end connector

4

3

2

1

6

5

6 6

5 5

4 4

3 3

2 2

1 1

CN075

(WHI)

TR

2

1

2

1

CN1

Remote

Controller

Indoor unit earth screw

1 2 3

FM

RC

TR

LM

TA

TC, TCJ

RY001

RY002

RY005~007

DP

NOTE

: Fan motor

: Runing capacitor

: Transformer

: Louver motor

: Indoor temp. sensor

: Indoor heat exchanger sensor

: Louver control relay

: Drain control relay

: Air volume control relay

: Drain pump motor

1 2 3

Outdoor unit earth screw

L N

Color

Identification

BLK

BLU

RED

GRY

PNK

GRN

WHI

BRW

ORN

YEL

:

:

:

:

:

:

:

:

:

: BLACK

BLUE

RED

GRAY

PINK

GREEN

WHITE

BROWN

ORANGE

YELLOW



High-Wall Type


A

B

C

Remote Controller

(Option)

A

B

C

ORG

YEL

BLU

Central Centroller

Connection (Option)

X

Y

1 1

2 2

CN01

RED

1 1

2 2

3 3

4 4

5 5

6 6

7 7

8 8

9 9

10 10

CN25

BLU

BLU

BLU

BLU

BLU

BLU

BLU

BLU

BLU

WHI

9

10

7

8

5

6

3

4

1

2

9

10

7

8

5

6

3

4

1

2

CN213

WHI

SUB-CONTROL P.C. BOARD

1

1

2

2

CN63

WHI

6

6

CN12

WHI

2

2

5

5

4

4

3

3

2

2

1

1

CN01

BLK

1 1

2 2

1

1

CN62

WHI

CN

240

BLK

P03 P02

1

1

2

2

CN64

6

6

5

5

4

4

3

3

2

2

1

1

CN61

WHI

1 1

2 2

3 3

CN02

WHI

AI-NET

P.C. BOARD

MCC-1337

11

12

13

9

10

7

8

5

6

3

4

1

2

14

15

14

15

16 16

CN31

WHI

11

12

13

9

10

7

8

5

6

3

4

1

2

1 1

2 2

3 3

4 4

5 5

6 6

7 7

8 8

9 9

10 10

11 11

12 12

13 13

14 14

15 15

16 16

CN02

WHI

TR

CN16

BLU

1

1

2

2

3

3

MCC-1370A

Control P.C. Board for

Indoor Unit

F201

T3,15A

250V~

Indoor unit

7

8

5

6

3

4

1

2

CN14

WHI

Outdoor unit

(1 Phase model)

GRN&YEL

RED

CN230

WHI

CN231

BLK

CN223

CN11

WHI

2 2

1 1

6 6

5 5

4 4

3 3

2 2

1 1

CN207

WHI

BLU

PNK

YEL

OPG

RED

BRN

6 6

5 5

4 4

3 3

2 2

1 1

BLU

YEL

WHI

BLK

RED

CN210

WHI

1

2

3

LM

FM

Earth

Screw

1

F2

2

L

N

Power Supply

220/240 50Hz

3 Serial Signal

2

2

1

1

CN04

WHI

2

2

1

1

CN05

WHI

2

2

1

1

6

CN20

YEL

5 4 3

CN13

WHI

2 1 2

2

1

1

CN50

WHI

4 3 2

CN06

WHI

1 2 1

CN21

WHI

TC

TCJ

TR

O/D

R/C

F

FM

LM

TA

NOTE

: Fuse (PCB)

: Fan motor

: Louver motor

: Temperature sensor



: Transformer

: Outdoor

: Remote Contoller

TA TC TCJ

D05

D02

D13

D11

Orange

Green

Orange

Green

LED Detall

O/D Serial Signal Input

O/D Serial Signal Output

R/C Serial Signal Input

R/C Serial Signal Output


Chack Code

04

08

09

0C

0d

0F

11

12

97

98

99

Diagnosis

Serial Signal Error

4-Way Valve Error

I/D Heart Exchange Error

TA Sensor Error

TC Sensor Error

TCJ Sensor Error

Indoor Fan Error

Indoor unit Error

LAN Comms Circuit Error

LAN Adress Setting

R/C Mis-Wiring



2

LOUVER

MOTOR

BRW

RED

ORN

YEL

PNK

BLU

1

2

3

4

5

6

1

2

3

4

5

6

CN07

SWITCH PCB

MCC-1428B

CN101 1 2 3

4

5

IC04

C15

RY501

HEAT

EXCHANGER

SENSOR

(TCJ)

10

9

8

7

6

5

4

3

2

1

CN25

8

7

6

5

4

3

2

1

10

9

WHI

BLU

BLU

BLU

BLU

BLU

BLU

BLU

BLU

BLU

10

9

8

7

6

5

4

3

2

1

CN13

10

9

8

7

6

5

4

3

2

1

CN100

1

1

2

2

3

3

C02

DB01

R01

FOR FLOAT SWITCH

(OPTION)

When you use float switch you should cut J401

C01

CN402

POWER

SUPPLY

CIRCUIT

1 2

J401

DC12V

DC5V

CR502

MCC-1428A

R405

CN05

IC03

CR501

1

1

1 2

R506

CN03

2

1

2

1

BLK

BLK

2

1

2

1

CN01

BLK

BLK

C501

2

2

CR401

1

2

3

4

5

1

2

3

4

5

CN10

3

2

1

3

2

1

CN11

WHI

RED

BLK

1

2

3

4

5

6

1

2

3

4

5

6

WHI

RED

BLK

BRW

GRY

YEL

3

2

1

3

2

1

THERMO

SENSOR

(TA)

HEAT

EXCHANGER

SENSOR

(TC)

BLU

PUR

GRY

RY401

R507

100”C

R09

R22

FUSE

250VAC

R21

3

2

1

FOR DRAIN PUMP

CN401

(OPTION)

SG01

F01

T6.3A

3

BLK

P04

CN30 CN31

CN23

GRN&YEL

2

1 2 3

INDOOR

TERMINAL

BLOCK

INDOOR

UNIT

OUTDOOR

UNIT

FAN-MOTOR

SIMPLE CHECK POINTS FOR DIAGNOSING FAULTS

1

Check items

OPERATION indicator

2

3

Terminal block

Fuse

6.3A

Diagnosis result

Check to see if OPERATION indicator goes on and off when the main switch or breaker is turned on.

Check the power supply voltage between 1 - 2 (Refer to the name plate.)

Chack the fluctuate voltage between 2 - 3 (DC15 to 60V)

Check to see if the fuse blows out. (Check the varistor. : R22, R21)

4

5

DC 5V

DC 12V

Check the voltage at the No.8 pin on CN13 connector of the infrared receiver.

(Check the transformer and the power supply circuit of the rated voltage.)

Check the voltage at the brown lead of the louver motor.

(Check the transformer and the power supply circuit of the rated voltage.)

BRW

RED

WHI

YEL

BLU

BLK

GRY

PNK

ORN

GRN&YEL

GRN

PUR :

:

:

:

:

:

:

:

:

:

:

: BROWN

RED

WHITE

YELLOW

BLUE

BLACK

GRAY

PINK

ORANGE

GREEN&

YELLOW

GREEN

PURPLE




RAV-SM560AT-E

4

BLU

P17 P18

3

3

2 1

2 1

CM

Q200

COMPRESSOR

IGBT MODULE

P.C. BOARD

(MCC-813)

CN301

5

5

4 3

4 3

2 1

2 1

3

3

2 1

2 1

CN300

P14

PUR

P13

P12

2 1

2 1

P11

FM

FAN MOTOR

P20

BRW

DB01

CONVERTER

MODULE

+

P19

~ – ~

ELECTRONIC

STARTER

A E G

REACTOR

THERMOSTAT

FOR

COMPRESSOR

P10

ORN 2 1

2 1

P09

P08 P07

2 1

2 1

CN500

CN600

1

2

1

2

TE

TD

POWER

RELAY

CT

CN601

1

2

3

1

2

3

TO

CN602

1

2

1

2

TS

Q300

–

–

–

C12

C13

C14

3

RELAY

CN603

CN701

1

2

3

1

2

3

1

2

3

1

2

3

P06

BLK

COIL FOR

4-WAY VALVE

F04

FUSE

T3. 15A

250V~

2

REACTOR

P02

VARISTOR

FUSE

T25A

250V~

F01

P03 P01

2

SURGE

ABSORBER

1

2

5

6

3

4

5

6

3

4

1

2

CN703

BLK

YEL

RED

ORN

RED

GRY

PMV

PULSE

MODULATING

VALVE

1

2

3 L N

TO

INDOOR

UNIT

POWER

SUPPLY

220 to 240

50Hz

1

TERMINAL OF COMPRESSOR

WHITE (S)

BLACK (C)

RED (R)

The sign in ( ) is displayed in the terminalcover


Check items

1

2

3

4


TERMINAL BLOCK

There is no supply voltage

(AC220 to 240V) between L - N , 1 - 2

There is no voltage (DC15 to 25V) 2 - 3

FUSE

T25A 250V to fuse (F01) blown

Power supply and connecting cable check

T3.15A 250V to fuse (F04) blown

Converter module (DB01) and electrolytic capacitor (C12 to C14) check

IGBT module (Q200) check

Fan motor check

ELECTROLYTIC CAPACITOR VOLTAGE (C12, C13, C14)

DC320V not available between

+ – terminal of electrolytic capacitor

T25A fuse (F01) check

P.C. board and converter module (DB01) check

INVERTER OUTPUT (Inverter and compressor connector out of position)

(Please confirm within six minutes after instructing in the drive.)

Voltage between each line of inverter side conector pins are not equal.

IGBT module and

P.C. board check

BLK

BLU

RED

GRY

PNK

GRN

Color Identification

:

:

:

:

:

:

BLACK

BLUE

RED

GRAY

PINK

GREEN

WHI

BRW

ORN

YEL

PUR

:

:

:

:

: WHITE

BROWN

ORANGE

YELLOW

PURPLE

CM

PMV

FM

TE

TD

TO

TS

IGBT

DB01

CT

Q300

NOTE

: Compressor

: Pulse modulating valve

: Fan motor

: Heat exchanger Temp. Sensor

: Discharge Temp. Sensor

: Outdoor Temp. Sensor

: Suction Temp. Sensor

: Insulated Gate Bipolar Transistor

: Converter module

: Curreut Transformer

: Fan motor driver module



RAV-SM800AT-E

Compressor

THERMOSTAT

FOR

COMPRESSOR

ORN

ORN

2

1

2

1

CN500

CN604 2

1

2

1

4-WAY VALVE COIL

3

1

3

1

3

CN700

1

FAN MOTOR

FM

PMV

CN605

2

1

2

1

CN600

3

2

1

3

1

3

2

1

3

2

1

5

4

3

2

1

3

2

5

4

1

CN300

CN301

2

4

3

6

5

2

1

4

3

6

5

2

1

CN702

CN601 2

1

2

1

Fan circuit

CN302

F300

FUSE

T5A

CN800

3 3

1 1

5 5

2

1

4 4

3 3

2

1

CN04

2

1

2

1

GRN

BLU

YEL

BLK

WHI

BLU

RED

PNK

ORN

TE

TS

TD

TO

CM

BLK

PHOTO COUPLER

CN01

5 5

2

1

4 4

3 3

2

1

WHI

RED

SUB

P.C. BOARD

(MCC-1398)

2

F01

FUSE

T3.15A

CN02

REACTOR

1

1

2 3

2 3

GRY

WHI

RED

WHI

BLK

CN09

CN10

POWER SUPPLY CIRCUIT

(FOR P.C. BOARD)

F04

FUSE

3.15A

2

3 3

CN04

1 1

5 5

2

1

4 4

3 3

2

1

2

1

2

1

CN06

P.C. BOARD

(MCC-1359)

CN05

5 5

2

1

4 4

3 3

2

1

CN13

CN11

POWER

RELAY

RY01

R05

R06

C13

C12

C11

C10

T02

CT

T03

CT

T04

CT

4

+

BU

EU

BV

EV

BW

EW

BX

BY

BZ

IGBT module

Q200

3

2

P20

P19

P18

P17

YEL

BLU

F02

FUSE

15A

G

E

A

~

Converter module

~

+

DB01

P10

P11

P13

P12

P09

REACTOR

2

1

2

1

REACTOR

2

1

2

1

ORN

P08

P15

BRN

P14

2

F01

FUSE

25A

CN01

RED

VARISTOR

CN02

WHI

SURGE

ABSORBER

CN03

BLK

1

RED

1 2 3 L N

TO

INDOOR

UNIT

POWER

SUPPLY

220-240V

~50Hz

TERMINAL OF COMPRESSOR

WHITE(S)

BLACK(C)

RED(R)

The sign in ( ) is displayed in the terminal cover


Check items

1

2

3

4


TERMINAL BLOCK

There is no supply voltage

(AC220 to 240V) between L - N , 1 - 2

There is no voltage (DC15 to 25V) 2 - 3

FUSE

25A fuse (F01) blown, 15A fuse (F02) blown

3.15A fuse (F04) blown,

T5A fuse (F300) blown (SUB P.C. board)

T3.15A fuse (F01) blown (SUB P.C. board)

Connecting cable check

Converter module (DB01) and electrolytic capacitor (C10 to C13) check IGBT module (Q200) check, Fan motor check

SUB P.C. board check

ELECTROLYTIC CAPACITOR VOLTAGE (C10, C11, C12, C13)

DC320V not available between

+ terminal of electrolytic capacitor

25A fuse (F01) check

P.C. board and coverter module (DB01) check

INVERTER OUTPUT (CN09, CN10, CN11)

(Please confirm within six minutes after instructing in the drive.)

Voltage between each line of inverterside conector pins are not equal.

IGBT module and

P.C. board check

BLK

BLU

RED

GRY

PNK

GRN

:

:

:

:

:

:

Color Identification

BLACK

BLUE

RED

GRAY

PINK

GREEN

WHI

BRN

ORN

YEL

PUR

:

:

:

:

: WHITE

BROWN

ORANGE

YELLOW

PURPLE



6. SPECIFICATIONS OF ELECTRICAL PARTS




4

5

6

No.

1

2

3

Parts name

Fan motor (for indoor)

Thermo. sensor (TA-sensor)

Heat exchanger sensor (TCJ-sensor)

Heat exchanger sensor (TC-sensor)

Float switch

Drain pump motor

Type

SWF-230-60-1

155 mm

Ø6 mm, 1200 mm

Ø6 mm, 1200 mm

FS-0218-106

ADP-1406

Specifications

Output (Rated) 60 W, 220–240 V

10 k

Ω

at 25°C

10 k

Ω

at 25°C

10 k

Ω

at 25°C



6

7

4

5

No.

1

2

3

Parts name

Fan motor (RAV-SM800BT-E)

Fan motor (RAV-SM560BT-E)

Capacitor (RAV-SM800BT-E)

Capacitor (RAV-SM560BT-E)




Type

STF-230-80-4C

STF-220-80-4C

EAG40M805UF1

CMPS400-4.0

818 mm

Ø6 mm, 1200 mm

Ø6 mm, 1200 mm

Specifications

Output (Rated) 80 W, 220–240 V, 4P

Output (Rated) 80 W, 220–240 V, 4P

400WV, 5µF

400WV, 4.0µF

10 k

Ω

at 25°C

10 k

Ω

at 25°C

10 k

Ω

at 25°C

High-Wall Type


No.

3

4

1

2

5

Parts name


Grille motor




Type

ICF340-30-1

MP35EA12

268 mm

Ø6 mm, 400 mm

Ø6 mm, 400 mm

Specifications


10 k

Ω

at 25°C

10 k

Ω

at 25°C


No.

1

2

3

4

5

Parts name


Grille motor




Type

AFP-220-50-4A

MP35EA

mm

Ø6 mm, mm

Ø6 mm, mm


Specifications


DC 12 V

10 k

Ω

at 25°C

10 k

Ω

at 25°C



RAV-SM560AT-E

No.

7

8

5

6

9

10

3

4

1

2

11

Parts name

Fan motor

Compressor

Reactor

Outdoor temp. sensor (To-sensor)

Heat exchanger sensor (Te-sensor)

Suction temp. sensor (Ts-sensor)

Discharge temp. sensor (Td-sensor)

Fuse (Switching power (Protect))

Fuse (Inverter, input (Current protect)

4-way valve solenoid coil

Compressor thermo. (Protection)

Type

ICF-140-43-1

DA130A1F-23F

CH-57

—

—

—

—

STF-0108G

US-622

Specifications

Output (Rated) 40 W

3 phase, 4P, 1100 W

1=10 mH, 16A

10 k

Ω

at 25°C

10 k

Ω

at 25°C

10 k

Ω

at 25°C

50 k

Ω

at 25°C

T3.15 A, AC 250 V

25 A, AC 250 V

ON : 90 ± 5°C, OFF : 125 ± 4°C

RAV-SM800AT-E

6

7

4

5

8

No.

1

2

3

9

10

11

Parts name

Fan motor

Compressor

Reactor

Outdoor temp. sensor (To-sensor)

Heat exchanger sensor (Te-sensor)

Suction temp. sensor (Ts-sensor)

Discharge temp. sensor (Td-sensor)

Fuse (Switching power (Protect))

Fuse (Inverter, input (Current protect))

4-way valve solenoid coil

Compressor thermo. (Protection)

Type

ICF-140-63-1

DA220A2F-20L

CH-47

—

—

—

—

DKV-M0ZS743B0

Specifications


3 phase, 4P, 1600 W

mH, A

10 k

Ω

at 25°C

10 k

Ω

at 25°C

10 k

Ω

at 25°C

50 k

Ω

at 25°C

T3.15 A, AC 250 V

25 A, AC 250 V

ON : 90 ± 5°C, OFF : 125 ± 4°C

6-3. Accessory Separate Sold Parts

RBC-U21PG (W) E (Ceiling panel)

Parts name No.

1

2

Motor-louver

Type

MP24GA DC 12 V

Specifications

TCB-DP11E (Drain up pump)

No.

1

2

Pump-drain

Parts name Type

PJD-05230TF-1

Specifications

AC 220–240 V



7. 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.

(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.

7-1. 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 exclusive 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 exclusive 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.

7-2. Refrigerant Piping Installation

7-2-1. 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 valve 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 7-2-1. Never use copper pipes thinner than 0.8 mm even when it is available on the market.



Nominal diameter

(2) Joints

1/4

3/8

1/2

5/8

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

a) Flare Joints

Table 7-2-1 Thicknesses of annealed copper pipes

Thickness (mm)

Outer diameter (mm)

6.35

9.52

12.70

15.88

R410A

0.80

0.80

0.80

1.00

R22

0.80

0.80

0.80

1.00

b) Socket Joints

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

Thicknesses of socket joints are as shown in

Table 7-2-2.

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 7-2-3 to 7-

2-6 below.


1/4

3/8

1/2

5/8

Table 7-2-2 Minimum thicknesses of socket joints

Reference outer diameter of copper pipe jointed (mm)

6.35

9.52

12.70

15.88

Minimum joint thickness

(mm)

0.50

0.60

0.70

0.80

7-2-2. 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.

(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 burrs and clean the cut surface before installation.


Toshiban lämmitys- ja jäähdytyslaitteiden jälleenmyyjä pääkaupunkiseudulla on Jäähdytinpalvelu RefGroup Oy 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.

Flare processing dimensions differ according to the type of flare tool. When using a conventional flare tool, be sure to secure “dimension A” by using a gauge for size adjustment.

ØD

A


1/4

3/8

1/2

5/8

Fig. 7-2-1 Flare processing dimensions

Table 7-2-3 Dimensions related to flare processing for R410A

Outer diameter

(mm)

6.35

9.52

12.70

15.88

Thickness

(mm)

0.8

0.8

0.8

1.0

Flare tool for

R410A clutch type

0 to 0.5

0 to 0.5

0 to 0.5

0 to 0.5

A (mm)

Conventional flare tool

Clutch type Wing nut type

1.0 to 1.5

1.0 to 1.5

1.0 to 1.5

1.0 to 1.5

1.5 to 2.0

1.5 to 2.0

2.0 to 2.5

2.0 to 2.5


1/4

3/8

1/2

5/8

Table 7-2-4 Dimensions related to flare processing for R22

Outer diameter

(mm)

6.35

9.52

12.70

15.88

Thickness

(mm)

0.8

0.8

0.8

1.0

Flare tool for

R22 clutch type

0 to 0.5

0 to 0.5

0 to 0.5

0 to 0.5

A (mm)

Conventional flare tool

Clutch type

0.5 to 1.0

0.5 to 1.0

0.5 to 1.0

0.5 to 1.0

Wing nut type

1.0 to 1.5

1.0 to 1.5

1.5 to 2.0

1.5 to 2.0


1/4

3/8

1/2

5/8

Table 7-2-5 Flare and flare nut dimensions for R410A

Outer diameter

(mm)

6.35

9.52

12.70

15,88

Thickness

(mm)

0.8

0.8

0.8

1.0

A

9.1

13.2

16.6

19.7

B

Dimension (mm)

C

9.2

13.5

16.0

19.0

6.5

9.7

12.9

16.0

D

13

20

23

25


Flare nut

width (mm)

17

22

26

29



1/4

3/8

1/2

5/8

3/4

Table 7-2-6 Flare and flare nut dimensions for R22

Outer diameter Thickness

(mm)

6.35

9.52

12.70

15.88

19.05

(mm)

0.8

0.8

0.8

1.0

1.0

A

9.0

13.0

16.2

19.4

23.3

Dimension (mm)

B C D

9.2

13.5

6.5

9.7

13

20

16.0

19.0

24.0

12.9

16.0

19.2

20

23

34

45 to 46

B A C D

Flare nut width

(mm)

17

22

24

27

36

43 to 45

Fig. 7-2-2 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.

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. Table 7-2-7 shows reference values.

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.


1/4

3/8

1/2

5/8

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

Outer diameter

(mm)

6.35

9.52

12.70

15.88

Tightening torque

N

• m (kgf

• cm)

14 to 18 (140 to 180)

33 to 42 (330 to 420)

50 to 62 (500 to 620)

63 to 77 (630 to 770)

Tightening torque of torque wrenches available on the market

N

• m (kgf

• cm)

16 (160), 18 (180)

42 (420)

55 (550)

65 (650)



7-3. Tools

7-3-1. 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 generation 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.

No.

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

Tools whose specifications are changed for R410A and their interchangeability

Used tool

Flare tool

Copper pipe gauge for

adjusting projection margin

Usage

Pipe flaring

Flaring by conventional flare tool

R410A air conditioner installation

Existence of Whether convennew equipment tional equipment for R410A can be used

Yes * (Note 1)

Yes * (Note 1)

Conventional air conditioner installation

Whether new equipment can be used with conventional refrigerant

¡

* (Note 1)

Torque wrench Connection of flare nut

Yes

X X

Gauge manifold

Charge hose

Vacuum pump adapter

Electronic balance for refrigerant charging

Refrigerant cylinder

Leakage detector

Charging cylinder

Evacuating, refrigerant charge, run check, etc.

Vacuum evacuating

Refrigerant charge

Refrigerant charge

Gas leakage check

Refrigerant charge

Yes

Yes

Yes

Yes

Yes

(Note 2)

X

X

X

X

X

X

X

¡

¡

X

¡

X

(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 for R22 are necessary as the general tools.

(1) Vacuum pump

Use vacuum pump by attaching vacuum pump adapter.

(2) Torque wrench

(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

(3) Insulation resistance tester

(2) Thermometer

(4) Electroscope



7-4. 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.

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

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.

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.)

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.

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) (Liquid side)

Opened

(Gas side)


(With siphon pipe)

Check valve

Open/Close valve for charging

Closed

Service port

Electronic balance for refrigerant charging

Fig. 7-4-1 Configuration of refrigerant charging


(OUTDOOR unit)


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 ]

Gauge manifold

OUTDOOR unit

[ Cylinder without siphon ]

Gauge manifold

OUTDOOR unit


Electronic balance cylinder ant

Electronic balance

Refriger

Siphon

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.

Fig. 7-4-2

7-5. Brazing of Pipes

7-5-1. 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 expensive 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.

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.

When performing brazing again at time of servicing, use the same type of brazing filler.

7-5-2. 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.



(2) Characteristics required for flux

• 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 harmless 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.

(4) Piping materials for brazing and used brazing filler/flux

7-5-3. 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 material, 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 m

³

/Hr or 0.02 MPa (0.2kgf/ cm

²

) 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.

Piping material

Used brazing filler

Used flux

Copper - Copper Phosphor copper Do not use

Copper - Iron

Iron - Iron

Silver

Silver

Paste flux

Vapor flux

M

Flow meter

Stop valve

Nitrogen gas cylinder

From Nitrogen cylinder

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.

Pipe

Rubber plug

Nitrogen gas

Fig. 7-5-1 Prevention of oxidation during brazing



8. CONTROL BLOCK DIAGRAM

8-1. Indoor Control Circuit

Max. 8 units are connectable.*1

*1 Max. 7 units when network adapters

are attached

*2 Network adapters are attached to only

one unit.

*3 Weekly timer is not connectable to the

sub remote controller.

Central control remote controller

(Option)

Main (Sub) master remote controller

Display

LCD

Display

LED

CPU

Remote controller communication circuit

Function setup

Key switch

DC5V

Power circuit

CN2 CN1

* 3

Weekly timer

Display

LCD

LCD driver

Power circuit

DC5V

CPU

Secondary battery

Option

Y

X

Indoor unit

#1

Network adapter (Option)

Network adapter

P.C. board

(MCC-1401)


AI NET communication circuit

DC5V

Power circuit

CPU

H8/3687

Switch setup

Indoor control P.C. board (MCC-1402)

DC20V

DC12V

DC5V

A B


EEPROM

Humidifier relay output

Heater relay output

Driver

CPU

H8/3039

TA sensor

TC sensor

TCJ sensor

Function setup

Key switch

Option

#2

A B

#3

A B

Same as the left

*

2

Same as the left

*

2

Transformer

Float input

Louver motor

Drain pump

Indoor fan motor

DC280V

Power circuit

CPU

TMP88CH

47FG

(TMP88PH

47FG)

Fan motor control circuit

Outside output

Run

Warning

Ready

Thermo. ON

Cool

Heat

Fan

AC synchronous signal input circuit

Serial send/ receive circuit

1 2 3 1 2 3

Outdoor unit

Outdoor unit

1 2 3

1 2 3

Outdoor unit

Optional only for 4-way air discharge cassette type models

Wireless remote controller kit

Sensor P.C. board (MCC-1418)

Power circuit

DC5V


Buzzer

CPU

Temporary operation SW

Function setup SW

Receive circuit Display LED



8-2. Control Specifications

No.

1

Item

When power supply is reset

Outline of specifications

1) Distinction of outdoor units

When the power supply is reset, the outdoors are distinguished, and control is exchanged according to the distinguished result.

2) Setting of speed of the indoor fan/setting whether to adjust air direction or not.

(Only 4-way models)

Based on EEPROM data, speed of the indoor fan or setting whether to adjust air direction or not is selected.

Remarks

Air speed/

Air direction adjustment

2 Operation mode selection

1) Based on the operation mode selecting command from the remote controller, the operation mode is selected.

Remote controller command

STOP

FAN

COOL

DRY

HEAT

AUTO

Outline of control

Air conditioner stops.

Fan operation

Cooling operation

Dry operation

Heating operation

• COOL/HEAT operation mode is automatically selected by Ta and Ts for operation.

Ta

( C)

+1.5

COOL

(COOL ON)

Tsc or Tsh

(COOL OFF)

-1.5

HEAT

1) Judge the selection of COOL/HEAT mode as shown in the figure above.

When 10 minutes passed after thermostat had been turned off, the heating operation (Thermo

OFF) is exchanged to cooling operation if Tsh exceeds +1.5 or more.

(COOL OFF) and (COOL ON) in the figure indicate an example.

When 10 minutes passed after thermostat had been turned off, the cooling operation (Thermo

OFF) is exchanged to heating operation if Tsc exceeds –1.5 or less.

2) For the automatic capacity control after judgment of

COOL/HEAT, refer to item 4.

3) For the temperature correction of room temperature control in automatic heating operation, refer to item 3.

Ta : Room temperature

Ts : Setup temperature

Tsc : Setup temperature in cooling operation

Tsh : Setup temperature

+ Room temperature control temperature compensation



No.

3

Item

Room temperature control


1) Adjustment range Remote controller setup temperature (°C)

COOL/

DRY

Heating operation

Auto operation

Wired type

Wireless type

*

18 to 29

18 to 30

18 to 29

16 to 30

18 to 29

17 to 27

*

: Only for 4-way air discharge cassette type

2) Using the item code 06, the setup temperature in heating operation can be compensated.

Setup data

Setup temp.

compensation

0

+0°C

2

+2°C

4

+4°C

6

+6°C

Setting at shipment

Setup data 2

Remarks

Shift of suction temperature in heating operation

4 Automatic capacity control

(GA control)

1) Based on the difference between Ta and Ts, the operation frequency is instructed to the outdoor unit.

5 Air speed selection

1) Operation with (HH), (H), (L), or [AUTO] mode is performed by the command from the remote controller.

2) When the air speed mode [AUTO] is selected, the air speed varies by the difference between Ta and Ts.

HH > H > L > LL

<COOL>

Ta ( C)

+3.0

+2.5

+2.0

+1.5

+1.0

+0.5

Tsc

-0.5

HH

(HH)

H (HH)

H (HH)

L(H)

L(H)

L(H)

L(L)

A

B

C

D

E

F

G

• Controlling operation in case when thermo of remote controller works is same as a case when thermo of the body works.

• If the air speed has been changed once, it is not changed for 3 minutes. However when the air volume is exchanged, the air speed changes.

• When cooling operation has started, the air speed selects a downward slope, that is, the high position.

• If the temperature is just on the difference boundary, the air speed does not change.

• Mode in the parentheses indicates one in automatic cooling operation.



No.

5

Item

Air speed selection

(Continued)

Outline of specifications Remarks

<HEAT>

Ta ( C)

(-0.5)

–

1.0

(0) Tsh

(+0.5) +1.0

(+1.0)

+2.0

(+1.5) +3.0

(+2.0) +4.0

L(L)

L(H)

H(H)

H

(HH)

HH

(HH)

E

D

C

B

A

Value in the parentheses indicates one when thermostat of the remote controller works.

Value without parentheses indicates one when thermostat of the body works.

•

If the air speed has been changed once, it is not changed for 1 minute. However when the air speed is exchanged, the air speed changes.

•

When heating operation has started, the air speed selects a upward slope, that is, the high position.

•

If the temperature is just on the difference boundary, the air speed does not change.

•

Mode in the parentheses indicates one in automatic heating operation.

•

In Tc

≥

60

°

C, the air speed increases by 1 step.

<Operation of duct only>

Standard High ceiling

Tap

COOL HEAT COOL HEAT

UL

L

L+

M

M+

H

UL

L

L+

M

M+

H

UL

L

L+

H

UL

L

L+

M+,M M+,M

H

F7

F6

F5

F4

F3

F2

F1

FD

FD

FB

FA

F9

F8

SM560 SM800

Revolutions per minute (rpm)

320

320

330

320

330

340

350

360

370

400

410

420

360

370

380

410

440

450

440

480

530

580

480

500

540

580

Tc: Indoor heat exchanger sensor temperature

3) In heating operation, the mode changes to [UL] if thermostat is turned off.

4) If Ta

≥

25

°

C when heating operation has started and when defrost operation has been cleared, it operates with HIGH (H) mode or (HH) for 1 minute from when Tc has entered in E zone of cool air discharge preventive control (Item 6).

5) In automatic cooling/heating operation, the revolution frequency of [HH] is set larger than that in the standard cooling/heating operation. However the revolution frequency is restricted in the automatic heating operation as shown in the following figure.

[PRE-HEAT] display

Tc

( C)

47

42

F5 F4

F5

–

41

– www.ilmalämpöpumput.com


No.

6

Item

Cool air discharge preventive control


1) In heating operation, the indoor fan is controlled based on the detected temperature of Tc sensor or Tcj sensor.

As shown below, the upper limit of the

Tc

Tcj

( C)

32

HH revolution frequency is determined.

30

H

L

E zone

28

UL

D zone

26

OFF

20

16

C zone

B zone

A zone

In D or E zone, the priority is given to setup of air volume exchange.

In A and B zones,

[PRE-HEAT] is displayed.

7 Freeze preventive control

(Low temperature release)

1) The cooling operation (including Dry operation) is performed as follows based on the detected temperature of Tc sensor or Tcj sensor.

When [J] zone is detected for 6 minutes (Following figure), the commanded frequency is decreased from the real operation frequency. After then the commanded frequency changes every 30 seconds while operation is performed in [J] zone.

In [K] zone, time counting is interrupted and the operation is held.

When [I] zone is detected, the timer is cleared and the operation returns to the normal operation.

If the commanded frequency becomes S0 because the operation continues in [J] zone, the return temperature

A is raised from 5

°

C to 12

°

C until [I] zone is detected and the indoor fan operates with [M] mode.

( C)

5 I A

K

Tcj : Indoor heat exchanger sensor temperature

2

J

8

In heating operation, the freeze-preventive control works if 4-way valve is not exchanged and the condition is satisfied. (However the temperature for J zone dashing control is changed from 2

°

C to

–

5

°

C.)

High-temp release control

1) The heating operation is performed as follows based on the detected temperature of Tc sensor or Tcj sensor.

•

When [M] zone is detected, the commanded frequency is decreased from the real operation frequency. After then the commanded frequency changes every 30 seconds while operation is performed in [M] zone.

•

In [N] zone, the commanded frequency is held.

•

When [L] zone is detected, the commanded frequency is returned to the original value by approx.

6Hz every 60 seconds.

Setup at shipment

Control temp (°C)

A B

Tc ( C)

Tcj

A

M

N

56 (54) 52 (52)

B

L

NOTE :

When the operation has started or when Tc or Tcj became lower than 30

°

C after start of the operation, temperature is controlled between values in parentheses of A and B.

Same when thermostat is turned off.

–

42



No.

9

Item Outline of specifications

Drain pump control

(For the duct, when the drain-up kit

(sold separately) is mounted)

1) In cooling operation (including Dry operation), the drain pump is usually operated.

2) If the float switch operates while drain pump operates, the compressor stops, the drain pump continues the operation, and a check code is output.

3) If the float switch operates while drain pump stops, the compressor stops and the drain pump operates. If the float switch keeps operating for approx.

4 minutes, a check code is output.

Remarks

Check code [P10]

10 After-heat elimination

When heating operation stops, the indoor fan operates with LOW mode for approx. 30 seconds.

11 Flap control

(For 4-way air discharge cassette type only)

1) Flap position setup

• When the flap position is changed, the position moves necessarily to downward discharge position once to return to the set position.

• The flap position can be set up in the following operation range.

In cooling/dry operation In heating/fan operation

• In group twin/triple operation, the flap positions can be set up collectively or individually.

2) Swing setup

• The swinging position can be moved in the following operation range.

All modes

• In group twin/triple operation, the swinging positions can be set up collectively or individually.

3) When the unit stops or when a warning is output, the flap automatically moves downward.

4) While the heating operation is ready, the flap automatically moves upward.

Warning :

A check code is displayed on the remote controller, and the indoor unit stops.

(Excluding [F08] and

[L31])



No.

Item

12 Frequency fixed operation

(Test run)


<In case of wired remote controller>

1. When pushing [CHECK] button for 4 seconds or more,

[TEST] is displayed on the display screen and the mode enters in Test run mode.

2. Push [ON/OFF] button.

3. Using [MODE] button, change the mode from [COOL] to [HEAT].

•

Do not use other mode than [COOL]/[HEAT] mode.

•

During test run operation, the temperature cannot be adjusted.

•

An error is detected as usual.

•

A frequency fixed operation is performed.

4. After the test run, push [ON/OFF] button to stop the operation. (Display in the display part is same as the procedure in item 1).)

5. Push [CHECK] button to clear the test run mode.

([TEST] display in the display part disappears and the status returns to the normal stop status.)

<In case of wireless remote controller>

(Option for 4-way air discharge cassette type only)

1. Turn off the power of the set.

Remove the adjuster with sensors from the ceiling panel.

2. Turn Bit [1: TEST] of sensor P.C. board switch [S003] from OFF to ON.

Attach the sensor P.C. board cover and mount the adjuster with sensors to the ceiling panel.

Turn on the power of the set.

3. Push [ON/OFF] button of the wireless remote controller and set the operation mode to [COOL] or [HEAT] using

[MODE] button.

(During test run operation, all the display lamps of wireless remote controller sensors flash.)

•

Do not use other mode than [COOL]/[HEAT] mode.

•

An error is detected as usual.

•

A frequency fixed operation is performed.

4. After the test run, push [ON/OFF] button to stop the operation.

5. Turn off the power of the set.

Turn Bit [1: TEST] of sensor P.C. board switch [S003] from ON to OFF.

Mount the adjuster with sensors to the ceiling panel.

Remarks

13 Filter sign display

(Except wireless type)

1) The operation time of the indoor fan is calculated, the filter reset signal is sent to the remote controller when the specified time (2500H) has passed, and it is displayed on LCD.

2) When the filter reset signal has been received from the remote controller, time of the calculation timer is cleared. In this case, the measurement time is reset if the specified time has passed, and display on LCD disappears.

[FILTER] goes on.

–

44



No.

14

15

Item

Central control mode selection

Energy-save control

(By connected outdoor unit)

16 Max. frequency cut control


1) Setting at the central controller side enables to select the contents which can be operated on the remote controller at indoor unit side.

2) RBC-AMT21

[Last push priority] :

The operation contents can be selected from both remote controller and central controller of the indoor unit side, and the operation is performed with the contents selected at the last.

[Center] :

Start/Stop operation only can be handled on the remote controller at indoor unit side.

[Operation Prohibited] :

It cannot be operated on the remote controller at indoor unit side. (Stop status is held.)

Remarks

(No display)

[CENTER] goes on.

[CENTER] goes on.

In a case of wireless type, the display lamp does not change.

However, contents which can be operated are same.

The status set in [CENTER]/

[Operation Prohibited] mode is notified with the receiving sound

“

Pi, Pi, Pi, Pi, Pi

”

(5 times).

1) Selecting [AUTO] mode enables an energy-saving to be operated.

2) The setup temperature is shifted (corrected) in the range not to lose the comfort ability according to input values of various sensors.

3) Data (Input value room temp. Ta, Outside temp. To, Air volume, Indoor heat exchanger sensor temp. Tc) for

20 minutes are taken the average to calculate correction value of the setup temperature.

4) The setup temperature is shifted every 20 minutes, and the shifted range is as follows.

In cooling time : +1.5 to

–

1.0K

In heating time :

–

1.5 to +1.0K

1) This control is operated by selecting [AUTO] operation mode.

2) COOL operation mode: the frequency is controlled according to the following

Ta( C) Normal control

+4 figure if

To < 28

°

C.

+3

Max. frequency is restricted to approximately the rated cooling frequency

Tsc

3) HEAT operation mode: the frequency is controlled according to the right

Ta( C)

Tsh figure if

To > 15

°

C.

–

3

Max. frequency is restricted to approximately the rated heating frequency

–

4

Normal control

17 DC motor

(For 4-way air discharge cassette type only)

1) When the fan operation has started, positioning of the stator and the rotor are performed.

(Moves slightly with tap sound)

2) The motor operates according to the command from the indoor controller.

NOTES :

•

When the fan rotates while the air conditioner stops due to entering of outside air, etc, the air conditioner may operated while the fan motor stops.

•

When a fan locking is found, the air conditioner stops, and an error is displayed.

Check code [P12]

–

45



DC fan output

Microcomputer operation LED

EEPROM

Network adapter power supply

Indoor/Outdoor inter-unit cable

DC fan return

Float SW

Louver

Optional output

TA sensor

CHK

DISP

EXCT

TC sensor

Outside error input

TCJ sensor

Remote controller power LED

Remote controller inter-unit cable www.ilmalämpöpumput.com

Drain pump output


Indoor/Outdoor inter-unit cable

Power transformer output

Power transformer input (AC11V,14V,20V)

Microcomputer operation LED

Louver

Drain pump output

Network adapter power supply

Fan output EXCT Float SW

TA sensor

TCsensor

TCJ sensor

Outside error input

Remote controller inter-unit cable

CHK

DISP www.ilmalämpöpumput.com

Remote controller power LED

HA

Optional output


9. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS

9-1. Microcomputer System Block Diagram

9-1-1. Connection of Main Remote Controller

Main (Sub) master remote controller

Display

LCD

Display

LED

CPU

TMP47C

820F

E E P R O M

Function setup

Ke y s w i t c h

Power circuit



The P.C. boards of the indoor unit are classified into 4 boards according to the function.

1. Main P.C. board (MCC-1370A)

Controller for power circuit, fan motor

driver, and whole unit

2. Sub P.C. board (MCC-1370B)

Setup of unit No. and concurrent twin

* The sub P.C. board is located near the

remote controller terminal block.

3. Sensor display P.C. board (MCC-819)

Wireless remote controller receive part,

LED display part

4. Communication P.C. board (MCC-1337)

Communication part with the central

control remote controller (Option)

A B C

Max. 16 units are connectable.

Indoor unit

#1

Sensor display P.C. board

(MCC-819)

A B C

Main P.C. board (MCC-1370A)

E E P R O M

Sensors LED


TA shift setup

Model selection

Function setup

Remote controller

No. setupTwin/

Triple setup

Sub P.C. board

(MCC-1370B)

Optional output

Comp.

Run

Error

Heat

Driver

CPU

TMP87CM

40AN

(TMP87PM

40AN)

TA sensor

TC sensor

TCJ sensor

Louver motor

Indoor fan motor

Transformer

DC310~340V

Indoor fan control circuit

DC

12V DC

5V

DC15V

Power circuit



1 2 3

1 2 3

Communication

LSI

Pulse trans

MCC-1337

Communication P.C. board (Option)

X Y

#2

B C

Same as the left

1 2 3

#3

B C

Same as the left

1 2 3

Outdoor unit

Outdoor unit

Outdoor unit

–

48



9-1-2. Connection of Wireless Remote Controller

Indoor unit

#1

Infrared radiation

Main P.C. board (MCC-1370A)

E E P R O M

Sensors LED

Sensor display

P.C. board

TA shift setup

Model selection

Function setup

CPU

Remote controller

No. setupTwin/

Triple setup

Sub P.C. board(MCC-1370B)

Optional output

Comp.

Run

Error

Heat

Louver motor

Indoor fan motor

Driver

Indoor fan control circuit

DC

12V

DC

5V

DC15V

Power circuit


TMP87CM

40AN

(TMP87PM

40AN)


Transformer

DC310~340V

TA sensor

TC sensor

TCJ sensor

1 2 3

Communication

LSI

MCC-1337

Pulse trans

Communication P.C. board (Option)

1 2 3

X Y

Outdoor unit

–

49



9-1-3. Control Specifications

No.

1

Item

When power supply is reset

2 Operation mode selection


1) Distinction of outdoor units

When the power supply is reset, the outdoors are distinguished, and control is exchanged according to the distinguished result.

2) Setting of the indoor fan speed

Based on EEPROM data, rspeed of the indoor fan is selected.

1) Based on the operation mode selecting command from the remote controller, the operation mode is selected.

Remote controller command

STOP

FAN

COOL

DRY

HEAT

AUTO

Outline of control

Air conditioner stops.

Fan operation

Cooling operation

Dry operation

Heating operation

Ta

( C)

+3

Tsc or Tsh

–

3

COOL

(COOL OFF)

(COOL ON)

Heating

1) Judge the selection of COOL/HEAT mode as shown in the figure below.

When the heating operation (Thermo OFF) is exchanged to cooling operation if Tsh exceeds +3 or more.

(COOL OFF) and (COOL ON) in the figure indicate an example.

When the cooling operation (Thermo OFF) is exchanged to heating operation if Tsc exceeds -3 or less.

2) For the automatic capacity control after judgment of

COOL/HEAT, refer to item 4.

3) For the temperature correction of room temperature control in automatic heating operation, refer to item 3.

Remarks

Air speed

Ta : Room temperature

Ts : Setup temperature

Tsc : Setup temperature in cooling operation

Tsh : Setup temperature in heating operation

3

Room temperature control

1) Adjustment range Remote controller setup temperature (

°

C)

Standard type

Wireless type

COOL/

DRY

18 to 29

17 to 30

Heating operation

18 to 29

17 to 30

Auto operation

18 to 29

19 to 29

Max. setup temperature

Ts (Max) = 35

°

C

Remote controller setup temp

Setup temp (

°

C)

▼ 5 ▼ 4 ▼ 3 ▼ 2 ▼ 1 Standard ▲ 1 ▲ 2 ▲ 3 ▲ 4 ▲ 5

19 20 21 22 23 24

2) Differential 1K (=deg)

3) In heating operation, the setup temperature can be corrected by using Dip switch (SW03) on the indoor

P.C. board.

25 26 27 28 29

SW03

1

2

Setup temp correction

ON ON OFF OFF

ON OFF ON OFF

+0

°

C +2

°

C +4

°

C +6

°

C

Setup at shipment

SW03

1

ON

2

OFF

–

50



No.

4

Item Outline of specifications

Automatic capacity control

1) Based on the difference between Ta and Ts, the operation frequency is instructed to the outdoor unit.

(GA control)

NOTE :

In cooling operation :

When calculating the following conditions for 29 minutes, the commanded frequency is assumed as the rated cooling frequency.

3

4

1

2

Ta < 28

°

C

Indoor fan [High]

32

°

C < To

≤

38

°

C or no To

Operation exceeding the rated cooling frequency

In heating operation: When calculating the following conditions for 29 minutes, the commanded frequency is assumed as the rated heating frequency.

1

2

3

4

5

Ta

≥

19

°

C

Indoor fan [High]

5

°

C < To

≤

10

°

C or no To

Operation exceeding the rated heating frequency

Tc

≥

38

°

C

5

Air volume control

<HEAT>

Ta

( C)

+0.5

Tsc

–

0.5

–

1.0

–

1.5

Remarks

NOTE :

When air volume is set to [L], the maximum frequency is restricted.

1) Operation with [HIGH (H)], [MED (M)], [LOW (L)], or

[AUTO] mode is performed by the command from the remote controller.

2) When the air volume mode [AUTO] is selected, the air volume varies by the difference between Ta and Ts.

<COOL>

Ta

( C)

+1.5

+1.0

+0.5

Tsc

–

0.5

Normal cooling

H

(HIGH)

Cooling of

Auto cooling/ heating

H

(HIGH)

M+

M

(MED)

M+

M+

L+

L

(LOW)

M

(MED)

L+

Tc : Temperature of indoor heat exchanger sensor

UH > H > M+ > M > L + >

L > UL

Normal heating

Heatiing of

Auto cooling/ heating

L

UL (Ultra Low) only in Comp OFF

L+

L+ M

(MED)

M

(MED)

M+

M+

H

(HIGH)

M+

H

UH

–

51



No.

5

Item

Air volume control

(Continued)


Tap

FA

FB

FC

FD

F7

F8

F9

F4

F5

F6

Air volume setup

COOL, DRY, FAN HEAT

H

M+

M

L+

L

UH

H

M+

M

L+

L

UL

SM560 SM800


1290

1230

1180

1480

1480

1340

1150

1120

1060

1060

990

940

900

1320

1310

1200

1200

1100

1040

900

3) In heating operation, the mode changes to [Ultra

Low (UL)] or [STOP] if thermostat is turned off.

4) If Ta

≥

25

°

C when heating operation has started and when defrost operation has been cleared, it operates with MED mode or higher mode for 1 minute from when Tc has entered in A zone of cool air discharge preventive control (Item 6).

5) In automatic cooling/heating operation, the revolution frequency of [HIGH (H)] is set larger than that in the standard cooling/heating operation. However the revolution frequency is restricted in the automatic heating operation as shown in the following figure.

“

Stop

”

is a

“ cool air discharge preventive control

”

operation by Tc.

Tc: Indoor heat exchanger sensor temp.

F5 F4

Tc

( C)

47

42

F4

6

6) (For wireless type only) The mode enters [AUTO] in automatic cooling/heating operation.

7) The mode enters [LOW (L)] during Dry operation

Cool air discharge preventive control

1) In heating operation, the indoor fan is controlled based on the detected temperature of Tc sensor.

As shown below, the upper limit of the revolution frequency is determined.

Tc( C)

30

A

A zone : Setup air volume from remote controller

B zone : Low air

C zone : OFF

26

20

16

C B

Display: [AUTO]

Display in C zone

Display of main unit:

Defrost LED goes on.

When wired remote controller is installed:

PRE-HEAT/DEFROST goes on remote controller.

–

52



No.

7

Item

Freeze preventive control

(Low temperature release)


1) The cooling operation (including Dry operation) is performed as follows based on the detected temperature of Tc sensor or Tcj sensor.

When [J] zone is detected for T1 minutes (Following figure), the commanded frequency is decreased from the real operation frequency. After then the commanded frequency changes every 30 seconds while operation is performed in [J] zone.

Normal

Twin

T1

6 minutes

6 minutes

Remarks

Tcj : Indoor heat exchanger sensor temperature

In [K] zone, time counting is interrupted and the operation is held.

When [I] zone is detected, the timer is cleared and the operation returns to the normal operation.

If the commanded frequency becomes S0 because the operation continues in [J] zone, the return temperature A is raised from 5

°

C to 12

°

C until [I] zone is detected and the indoor fan operates with [L] mode.

( C)

5

I

A

K

2

J

8

In heating operation, the freeze-preventive control works if 4-way valve is not exchanged and the condition is satisfied.

High-temp release control

1) The heating operation is performed as follows based on the detected temperature of Tc sensor.

•

When [M] zone is detected, the commanded frequency is decreased from the real operation frequency. After then the commanded frequency changes every 30 seconds while operation is performed in [M] zone.

•

In [N] zone, the commanded frequency is held.

•

When [L] zone is detected, the commanded frequency is returned to the original value by approx. 6Hz every 60 seconds.

Setup at shipment

Control temp (°C)

A B

56 (54) 52 (52)

Tc ( C)

A

B

M

L

N

NOTE :

When the operation has started or when Tc became lower than 30

°

C after start of the operation, temperature is controlled between values in parentheses of A and B.

Same when thermostat is turned off.

–

53



Remarks No.

9

Item

Louver control

1) Louver position


The louver angle is displayed setting 0

°

as

“

Full close

”

.

Full close

1) In the initial operation after

0 power-ON, the position is automatically controlled according to the operating status (COOL/HEAT).

Cooling Heating

2) Air direction adjustment

(Swing operation)

10

Frequency fixed operation

(Test run)

45 103

2) After then a louver position is stored in the microcomputer every time when position is operated on the remote controller, and the louver operates at the position stored in memory in the next operation and after.

* If the operation mode has been changed from COOL to HEAT, from HEAT to COOL, or the power has turned off, the stored louver position is cleared and the status returns to one in item 1).

1) When pushing [LOUVER] button during operation, the louver starts swinging.

2) When the louver has arrived at the desired position, push

[LOUVER] again. The louver stops at that position.

1) In case of wired remote controller

1. When pushing [ON/OFF] button on the remote controller continuously for 5 seconds, the mode enters [TEST]. The indoor fan rotates with [HIGH] and a frequency fixed operation starts.

2. During this operation, the buttons other than [ON/

OFF], [UP

△

] and [DOWN

▽

] cannot be accepted.

However, items 7 and 8 are effective.

3. To stop the frequency fixed operation, use [ON/OFF] button only.

2) In case of wireless remote controller (Without wired remote controller)

1. When pushing [Temporary] button continuously for

10 seconds or more,

“

Pi

”

sound is heard and the mode enters [TEST]. The indoor fan rotates with

[HIGH] and a frequency fixed operation of [COOL] starts.

NOTES :

•

Temporary button is provided to near the display part of the main unit when opening the front panel.

•

If [Temporary] button is not continuously pushed for 10 seconds,

“

Automatic heating/cooling operation

”

is performed.

2. To stop the operation, push [Temporary] button again.

NOTE :

Operation on the wireless remote controller is not accepted.

[COOL]/[HEAT] flash.

Air volume: [AUTO]

Temperature

COOL: [L]

HEAT: [H]

Commanded frequency

Approximately [S7]

–

54



No.

11

Item

Filter sign display


1) The operation time of the indoor fan is calculated, the filter lamp (Orange) on the display part of the main unit goes on when the specified time (240H) has passed. When a wired remote controller is connected, the filter reset signal is sent to the remote controller, and also it is displayed on LCD of the wired remote controller.

2) When the filter reset signal has been received from the wired remote controller after [FILTER] lamp has gone on or when the filter check button (Temporary button) is pushed, time of the calculation timer is cleared. In this case, the measurement time is reset if the specified time has passed, and display on

LCD and the display on the main unit disappear.

[FILTER] goes on.

12

Central control mode selection

1) Setting at the central remote controller side enables to select the contents which can be operated on the remote controller at indoor unit side.

2) Operation contents on the remote controller at indoor unit side

[Last push priority] :

The operation contents can be selected from both remote controller and the central controller of the indoor unit side, and the operation is performed with the contents selected at the last.

[Center] :

Start/Stop operation only can be handled on the remote controller at indoor unit side.

[Operation Prohibited] :

It cannot be operated on the remote controller at indoor unit side.

(Stop status is held.)

3) Display on the display part of the main unit or wired remote controller

Setup on central control remote controller

Last push priority

Center

Operation prohibited

Display on wired remote controller

(In case of RBC-AM1)

[Central control] goes off.

[Central control] goes on.

[Central control] flashes.

Display on wired remote controller

(In case of RBC-AM1)

[Center] goes off.

[Center] goes on.

[Center] flashes.

Display on main unit

(Only in case of no wired remote controller)

No display

[DEFROST] lamp (Orange) 1Hz flashes.

[DEFROST] lamp (Orange) 5Hz flashes.

NOTE : When a wired remote controller is connected, there is no display on the main unit.

13

Energy-save control

(By connected outdoor unit)

14

Max. frequency cut control

1) Selecting [AUTO] mode enables an energy-saving to be operated.

2) The setup temperature is shifted (corrected) in the range not to lose the comfort ability according to input values of various sensors.

3) Data (Input value room temp. Ta, Outside temp. To, Air volume, Indoor heat exchanger sensor temp. Tc) for 20 minutes are taken the average to calculate correction value of the setup temperature.

4) The setup temperature is shifted every 20 minutes, and the shifted range is as follows.

In cooling time : +1.5 to

–

1.0K

In heating time :

–

1.5 to +1.0K

1) This control is operated by selecting

[AUTO] operation mode.

2) COOL operation mode: the frequency is controlled according to the following figure if To < 28

°

C.

Ta( C)

+4

Normal control

+3

Max. frequency is restricted to approximately the rated cooling frequency

Tsc

3) HEAT operation mode: the frequency is controlled according to the right figure if To > 15

°

C.

Ta( C)

Tsh

-3

Max. frequency is restricted to approximately the rated heating frequency

-4

Normal control

–

55



9-2. Indoor Control Circuit

9-2-1. Print Circuit Board

<Main P.C. board (MCC-1370A)>

<Sub P.C. board (MCC-1370B)>

–

56



9-2-2. Outline of Main Controls

1. Pulse Modulating Valve (PMV) control

1) For PMV, SM560 is controlled with 45 to 500 pulses and SM800 with 50 to 500 pulses during operation, respectively.

2) In cooling operation, PMV is controlled with the temperature difference between TS sensor and TC sensor.

3) In heating operation, PMV is controlled with the temperature difference between TS sensor and TE sensor.

4) For the temperature difference in items 2) and 3), 1 to 5K is aimed as the target in both cooling and heating operations.

5) When the cycle excessively rose in both cooling and heating operations, PMV is controlled by TD sensor.

The aimed value is usually 105

°

C for SM560 and 100

°

C for SM800 in both cooling and heating operations.

REQUIREMENT

A sensor trouble may cause a liquid back-flow or abnormal overheat resulting in excessive shortening of the compressor life. In a case of trouble on the compressor, be sure to check there is no error in the resistance value an the refrigerating cycle of each sensor after repair and then start the operation.

2. Discharge temperature release control

1) This function controls the operation frequency, that is, lowers the operation frequency when the discharge temperature has not lower or the discharge temperature has rapidly risen during PMV control. It subdivides the frequency control up to a unit of 0.6Hz to stabilize the cycle.

2) When the discharge temperature is detected in an abnormal stop zone, the unit stops the compressor and restarts after 2 minutes 30 seconds. The error counter is cleared when it has continued the operation for 10 minutes.

If the abnormal stop zone has been detected by 4 times without clearing of counter, an error

‘

P03

’

is displayed.

* The cause is considered as excessively little amount of refrigerant, defective PMV, or clogging of cycle.

[

°

C]

SM560

SM800 a

117

111 b

112

106 c

108

100 d

105

95 e

98

90

TD [ C] a b c

Error stop ("P03" display with 4 times of error counts)

Frequency down

Frequency holding d

Frequency slow-up

(Up to command) e

As command is

3. Current release control

The output frequency and the output voltage are controlled by AC current value detected by T02 on the outdoor P.C. board so that input current of the inverter does not exceed the specified value.

Objective model

SM560

COOL HEAT

10.22

10.35

SM800

COOL HEAT

13.00

14.43

I1 value [A]

* For the cooling only models, only COOL is objective.

I1

1

–

0.5

–

57


[A]

Frequency down

Hold

Hold

Normal operation


9-2-3. Indoor P.C. Board Optional Connector Specifications

Function

Option output

Outside error input

Filter option error

CHK

Operation check

DISP display mode

EXCT demand

Connector

No.

Pin

No.

CN60 1

Specifications

DC12V (COM)

CN80

CN70

CN71

CN72

CN73

2

3

4

5

6

Defrost output

Thermo. ON output

Cooling output

Heating output

Fan output

Remarks

ON during defrost operation of outdoor unit

ON during Real thermo-ON (Comp ON)

ON when operation mode is in cooling system

(COOL, DRY, COOL in AUTO cooling/heating)

ON when operation mode is in heating system

(HEAT, HEAT in AUTO cooling/heating)

ON during indoor fan ON

(Air purifier is used/Interlock cable)

(When continued for 1 minute)

Check code

“

L30

”

is output and forced operation stops.

1 DC12V (COM)

2 DC12V (COM)

3 Outside error input

1

2

Filter/Option/Humidifier setup input

Option error input is controlled. (Protective operation for device attached to outside is displayed.)

0V * Setting of option error input is performed from remote controller. (DN=2A)

1

2

Check mode input

0V

Used for operation check of indoor unit. (Communication with outdoor unit or remote controller is not performed, but the specified operation such as indoor fan

“

H

”

or drain pump ON is output.)

Display mode enables indoor unit and remote controller to communicate. (When power is turned on)

1 Display mode input

2

1

0V

Demand input

2 0V

Forced thermo-OFF operation in indoor unit

–

58



IGB module

5V power supply MCU GND

12V power supply

PMV output

TD sensor

TS sensor

TE sensor

TO sensor

Case thermo

Outdoor fan rpm input

Outdoor fan output

4-way valve output

(Except cooling only models)

Converter module www.ilmalämpöpumput.com


4-way valve output

Pump down switch

12V power supply

PMV output

Case thermo

Contactor against night low-noise

5V power supply

TD sensor

TO sensor

TE sensor

TS sensor

Communication between CDB and IPDU

Existing pipe corresponding switch

(SW 801)

Outdoor fan output

GND

MCU

Status display LED www.ilmalämpöpumput.com


9-3-2. Outline of Main Controls

1. Outdoor fan control (Object: SM80)

SM800

Allocautions of fan tap revolutions [rpm]

W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE

250 270 290 310 340 370 400 440 480 520 560 610 700 780

1) Cooling fan control

Q

The outdoor fan is controlled by TE sensor.

(Cooling: Temperature conditions after medium term)

The cooling fan is controlled by every 1 tap of DC fan control (14 taps).

R

At the activation time, although the maximum fan tap in the following table are fixed for 60 seconds, after then the fan may not rotate with high speed for several minutes because the fan is controlled by TE sensor value. It is not an abnormal status.

S

When the discharge temperature sensor is abnormal or the sensor comes off the holder, the fan does not rotate with high speed, but a protective device works.

T

When the outdoor fan does not rotate with high speed, judge a fan error by comparing the control data in the following table with TO and TE values.

TE [ C]

46

37

34

20

MAX.

+30 rpm / 20 sec.

Hold zone

–

30 rpm / 20 sec.

MIN.

TO

MIN

MAX

TO < 5

°

C

W1

W6

Control for fan tap by outdoor temperature in normal operation

5

≤

TO <10

°

C 10

≤

TO < 15

°

C 15

≤

TO < 20

°

C 20

≤

TO < 25

°

C 25

°

C

≤

TO

W2 W3 W4 W5 WA

W8 WA WC WE WE

TO error

W1

WE

2) Heating fan control

Q

This control function lowers fan tap according to

TE sensor value when outdoor temperature is high.

R

When a status TE > 20

°

C is detected continuously for 5 minutes, the operation may stop. This status does not output an error code and is assumed as usual status of thermo-OFF. The fan restarts after approx. 2 minutes 30 seconds and this intermittent operation is not a trouble.

S

If the status in item

R

is frequently found, it is considered that the filter of suction part of the indoor unit is dirty. Clean the filter and restart the operation.

T

This control function does not work for 30 minutes after activation, 1 minute after defrosting, and during defrost operation.

TE [ C]

–

60 rpm / 20 sec. STOP timer count

24

–

60 rpm / 20 sec.

21

–

30 rpm / 20 sec.

17

Hold zone

15

+30 rpm / 20 sec.

–

61



2. Outdoor fan control (Object: SM560)

The outdoor fan is controlled by TO sensor and the revolutions frequency of the compressor (rps).

The outdoor fan is controlled by every 1 tap of DC fan control (8 taps). According to each operation mode, the fan is operated by selecting an outdoor fan operation tap in the following table based upon the conditions of TO sensor and the compressor operation (rps).

SM560

Tap


Allocations of fan tap revolutions

F1 F2 F3 F4

960 870 870 870

F5

750

F6

700

F7

540

F8

390

In cooling operation

Frequency of the compressor (rps)

TO

≥

38

°

C

TO < 38

°

C

To 14

F7

F7

To 14

F4

F5

35 to MAX

F3

F4

In heating operation

Frequency of the compressor (rps)

TO

≥

5.5

°

C

TO < 5.5

°

C

To 14

F7

F6

To 14

F6

F6

35 to MAX

F4

F3

3. Coil heating control

1) This control function heats the compressor by turning on the stopped compressor instead of a case heater. It purposes to prevent slackness of the refrigerant inside of the compressor.

2) As usual, turn on power of the compressor for the specified time before a test run after installation, otherwise a trouble of the compressor may be caused. As same as a test run, it is recommended to turn on power of the compressor beforehand when starting operation after power of the compressor has been interrupted for a long time.

3) A judgment for electricity is performed by TD and TO sensors. If TO sensor is defective, a backup control is automatically performed by TE sensor. For a case of defective TO sensor, judge it with the outdoor LED display.

4) Coil heating is controlled by TD and TE sensor.

5) For every model, the power is turned off when TD is 30

°

C or more.

Power-ON condition

TD < 30 C

TO [

18

15

10

8

C]

No power-ON

Continuous ON (L)

Continuous ON (M)

(In trouble of sensor)

TO [ C]

20

18

12

10

No power-ON

Continuous ON (L)

Continuous ON (M)

L

M

SM800

20W and equivalent

40W and equivalent

TO [ C]

(Object: SM560)

10

9

4

3

2

1

No power-ON

Continuous ON (L)

Continuous ON (M)

Continuous ON (H)

L

M

H

SM560

10W and equivalent

20W and equivalent

30W and equivalent

–

62



NOTIFICATION

It is not an abnormal phenomenon that electro-noise may be heard while heating the coil.

4. Short intermittent operation preventive control

Q

The compressor may not stop for preventing the compressor for 3 to 10 minutes after start of the operation even if Thermo-OFF signal has been received from the indoor. This phenomenon is not abnormal. (Continuous operation time of the compressor differs according to the operating status.)

R

If the equipment is stopped from the remote controller, the operation does not continue.

5. High-voltage suppression TE control (Only for SM800)

Q

This control suppresses that voltage becomes abnormally higher during cooling operation.

R

Stop the compressor under condition of TE

≥

67

°

C, and count 1 on the error count.

S

After 2 minutes 30 seconds passed, if TE < 67

°

C, the compressor restarts and the error count is cleared when the operation continues for 10 minutes.

T

When TE

≥

67

°

C is detected again within 10 minutes, 1 is added to the error count and restart is repeated.

U

If the error counts 10 are recognized, it is determined as an error and restart is not performed. Error code

‘

P04

’

is displayed.

V

After restarting the compressor, continue controlling by using 70% to 90% of the control value of the current release control for minimum 30 minutes.

6. Over-current preventive control

Q

This control function stops the compressor when over-current preventive circuit has detected an abnormal current.

R

The compressor restarts with error count 1 after 2 minutes 30 seconds.

S

If the error counts 4 are recognized, it is determined as an error and restart is not performed. Error code

‘

H01

’

,

‘

H02

’

or

‘

P26

’

is displayed.

7. Current release value shift control

1) Object: SM800

Q

This control function prevents troubles of the electron parts such as G-Tr of inverter of compressor drive system and troubles of the compressor during cooling operation.

R

This control function corrects the current release control value ( 1) in item 3 of 9-2-2 by TO sensor value.

S

The value to be corrected is based upon the following control diagram and correction value table.

Corrected value

TO [ C]

SM800

T a b c d

39

°

C 40

°

C 60

°

C 80

°

C 85

°

C

T+8

T+7

T+5

T+4

T+2

T+1

T

T-1

I

1 x a%

I 1 x b%

I

1 x c%

I

1 x d%

As I 1

2) Object: SM560

The current release value of a single-phase model is selected from the right table according to TO sensor value.

Current release value shift control

TO

45

≤

TO

40

≤

TO < 45

TO < 45

SM560

7.07

7.90

10.22

–

63



8. Defrost control

Q

In heating operation, defrost operation is performed when TE sensor temperature satisfies any condition in A zone to D zone.

R

The defrost operation is immediately finished if TE sensor temperature has become 12

°

C or more, or it also is finished when condition of 7

°

C

≤

TE < 12

°

C has continued for 1 minute. The defrost operation is also finished when defrost operation has continued for 10 minutes even if TE sensor temperature has become 7

°

C or lower.

S

After defrost operation has finished, the compressor and the outdoor fan start heating operation after stopped for approx. 50 seconds.

Start of heating operation

10

TE [

º

C]

0

–

5

–

10

–

13

–

18

15

* c b a d [min]

* The minimum TE value between 10 and 15 minutes after heating operation has started is stored in memory as TE0.

c d a b

T

A zone

B zone

C zone

D zone

Defrost operation is performed in this zone when TE0-TE

≥

3 continued for T seconds.

Defrost operation is performed in this zone when TE0-TE

≥

3 continued for T seconds.

Defrost operation is performed when this zone continued for T seconds.

Defrost operation is performed when this zone continued for T seconds.

SM560

28

28

28

60

120

SM800

34

40

55

90

120

–

64



10. TROUBLESHOOTING

10-1. Summary of Troubleshooting

<Wired remote controller type>

1. Before troubleshooting

1) Required tools/instruments

•

+ and

–

screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch

•

Tester, thermometer, pressure gauge, etc.

2) Confirmation points before check

Q

The following operations are normal.

a) Compressor does not operate.

•

Is not 3-minutes delay (3 minutes after compressor OFF)?

•

Does not thermostat turn off?

•

Does not timer operate during fan operation?

•

Is not outside high-temperature operation controlled in heating operation?

b) Indoor fan does not rotate.

•

Does not cool air discharge preventive control work in heating operation?

c) Outdoor fan does not rotate or air volume changes.

•

Does not high-temperature release operation control work in heating operation?

•

Does not outside low-temperature operation control work in cooling operation?

•

Is not defrost operation performed?

d) ON/OFF operation cannot be performed from remote controller.

•

Is not the control operation performed from outside/remote side?

•

Is not automatic address being set up?

(When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.)

R

Did you return the cabling to the initial positions?

S

Are connecting cables of indoor unit and remote controller correct?

(2) Troubleshooting procedure

When a trouble occurred, check the parts along with the following procedure.

Trouble

→

Confirmation of check code display

→

Check defective position and parts.

NOTE :

For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cables of the remote controller to shield cables.

–

65



<Wireless remote controller type> (Only for 4-way air discharge cassette type models)



•

+ and

–

screwdrivers, spanners, radio cutting pliers, nippers, etc.

•



Q



•


•


•


•



•


3) Outdoor fan does not rotate or air volume changes.

•


•


•


4) ON/OFF operation cannot be performed from remote controller.

•

Is not forced operation performed?

•


•

Is not automatic address being set up?

Q


R

Are connecting cables between indoor unit and receiving unit correct?

2. Troubleshooting procedure

(When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.)


Trouble

→

Confirmation of lamp display

(When 4-way air discharge cassette type wireless remote controller is connected)

Check defective position and parts.

1) Outline of judgment

The primary judgment to check where a trouble occurred in indoor unit or outdoor unit is performed with the following method.

Method to judge the erroneous position by flashing indication on the display part of indoor unit

(sensors of the receiving unit)

The indoor unit monitors operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works.

–

66



10-2. Check Code List

Error mode detected by indoor unit

◎

: Flash,

〇

: Go on,

●

: Go off

Wireless sensor lamp display

Operation Timer Ready

Wired remote controller

Check code

E03

◎ ● ●

●

◎

◎

◎

◎

◎

◎

●

●

●

◎

◎

◎

◎

◎

◎

◎

◎

●

●

●

●

●

●

○

◎

◎

◎

●

●

◎

◎

◎

◎

●

●

◎

●

◎

◎

◎

◎

◎

◎

◎

◎

◎

◎

●

●

●

●

●

●

E04

E08

L03

L07

L08

L09

L30

P01

P10

P12

P19

P31

F01

F02

F10

F29

E10

E18

Duplicated indoor unit addresses

Duplicated indoor master units

Unsetting of indoor group address

Unset indoor capacity

Abnormal outside interlock input

Fan motor thermal protection

Float switch operation

• of float circuit

Indoor DC fan error

Error in 4-way valve system heating operation.

Diagnostic function

Cause of operation

No communication from remote controller (including wireless) and communication adapters

The serial signal is not output from outdoor unit to indoor unit.

•

Miscabling of inter-unit cables

•

Defective serial sensing circuit on outdoor P.C. board

•

Defective serial receiving circuit on indoor P.C. board

There is group line in individual indoor units.

Disconnection, coming-off, defective float switch contactor

•

Indoor heat exchanger temperature lowered after start of

Own unit stops while warning is output to other indoor units.

Coming-off, disconnection or short of indoor heat exchanger sensor (TCJ)

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

Coming-off, disconnection or short of indoor heat exchanger sensor (TA)

Indoor EEPROM error

•

EEPROM access error

Communication error between indoor MCU

•

Communication error between fan driving MCU and main

MCU

Regular communication error between master and sub indoor units or between main and sub indoor units

Status of air conditioner

Stop

(Automatic reset)

S top

(Automatic reset)

Stop

Stop

Stop

Stop

Stop

Stop

Stop

(Automatic reset)

Stop (Sub unit)

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Condition

Judgment and measures

Displayed when error is detected







1. Check cables of remote controller and communication adapters.

•

Handy remote controller LCD display OFF (Disconnection)

•

Central remote controller [97] check code

1. Outdoor unit does not completely operate.

•

Inter-unit cable check, correction of miscabling, case thermo operation

•

Outdoor P.C. board check, P.C. board cables check

2. In normal operation

P.C. board (Indoor receiving/Outdoor sending) check

1. Check whether there is modification of remote controller connection (Group/

Individual) or not after power has been turned on (finish of group configuration/ address check).

* If group configuration and address are not normal when the power has been turned on, the mode automatically shifts to address setup mode. (Resetting of address)

1. Set the indoor capacity. (DN=I1)










1. Check outside devices.

2. Check indoor P.C. board.

1. Check thermal relay of fan motor.


1. Defect of drain pump

2. Clogging of drain pump

3. Check float switch.


1. Defective detection of position

2. Over-current protective circuit of indoor fan driving unit operates.

3. Lock of indoor fan


1. Check 4-way valve.

2. Check indoor heat exchanger (TC/TCJ) sensor.


1. Judge sub unit while master unit is in [E03], [L03], [L07], [L08].


1. Check indoor heat exchanger temperature sensor (TCJ).


1. Check indoor heat exchanger temperature sensor (TC).


1. Check indoor heat exchanger temperature sensor (TA).


1. Check indoor EEPROM. (including socket insertion)


1. Check cables of remote controller.

2. Check power cables of indoor unit.


1. Check cables of remote controller.

2. Check indoor power cable.




Error mode detected by outdoor unit

◎ : Flash, 〇 : Go on, ● : Go off



Operation Timer Ready Check code

H01

● ◎ ●


Breakdown of compressor

•



●

●

◎

◎

◎

◎

◎

◎

◎

◎

◎

◎

◎

◎

○

○

●

●

●

●

●

◎

◎

◎

●

●

◎

◎

◎

◎

◎

◎

◎

○

○

○

H02

H03

L29

L31

P03

P04

P22

P26

P29

F04

F06

F08

Coming-off, disconnection or short of outdoor temperature sensor (TD)

Coming-off, disconnection or short of outdoor temperature sensor (TE/TS)

Coming-off, disconnection or short of outdoor temperature sensor (TO)

Stop


Condition


Compressor does not rotate.

•

Over-current protective circuit operates after specified time passed when compressor had been activated.

Stop

Current detection circuit error

•

Current value at AC side is high even during compressor-OFF.

•

Phase of power supply is missed.

Stop

Stop Outdoor unit and other errors

•

Communication error between CDB and IPDU

(Coming-off of connector)

•

Heat sink temperature error

(Detection of temperature over specified value)

Phase detection protective circuit operates.

(Normal models)

Discharge temperature error

•

Discharge temperature over specified value was detected.



1. Compressor immediately stops even if restarted. : Check IPDU.

2. Phase-missing operation of power supply

Check 3-phase power voltage and cables.

1. Check cables of CDB and IPDU.

2. Abnormal overload operation of refrigerating cycle

Operation continues.

(Compressor stops.)


1. Check power phase order (Reversed phase)/phase missing.

2. Check outdoor P.C. board.

Stop


1. Check refrigerating cycle. (Gas leak)

2. Trouble of PMV

3. Check Td sensor.

High-pressure protection error by TE sensor

(Temperature over specified value was detected.)

Stop

Outdoor DC fan error Stop


1. Overload operation of refrigerating cycle

2. Check outdoor temperature sensor (TE).

3. Check outdoor CDB P.C. board.


1. Defective detection of position

2. Over-current protective circuit of outdoor fan driving unit operates.

3. Lock of outdoor fan


Inverter over-current protective circuit operates. (For a short time)

Short voltage of main circuit operates.

IPDU position detection circuit error


1. Check power voltage. AC200V±20V


3. Check current detection circuit at AC side.


1. Trouble of compressor (Compressor lock, etc.) : Replace compressor.

2. Defective cabling of compressor (Phase missing)

3. Phase-missing operation of power supply (3-phase model)

Stop

Stop

Stop

Stop


1. Inverter immediately stops even if restarted. : Compressor motor rare short

2. Check IPDU. : Cabling error


1. Position detection circuit operates even if operating compressor by removing

3P connector. : Replace IPDU.


1. Check outdoor temperature sensor (TD).



1. Check outdoor temperature sensor (TE/TS).




1. Check outdoor temperature sensor (TO).


For an error mode detected in outdoor unit, the fan operates because sub unit of a group operation does not communicate with the outdoor unit.



Error mode detected by remote controller or network adapter

◎ : Flash, 〇 : Go on, ● : Go off


Operation Timer Ready

— — —


Check code

No check code is displayed.

(Remote controller does not operate.)

◎

◎

◎

◎

—

—

—

●

●

●

○

—

—

—

●

●

●

◎

—

—

—

E01*2

•


No communication with master indoor unit

•

Remote controller cable is not correctly connected.

•

Power of indoor unit is not turned on.

•

Automatic address cannot be completed.

No communication with indoor master unit

Disconnection of inter-unit cable between remote controller and master indoor unit

(Detected at remote controller side)


Stop

Stop


(Automatic restart)

* When there is center, operation continues.


Condition

—



Remote controller power error, Defective indoor EEPROM

1. Check remote controller inter-unit cables.

2. Check remote controller.

3. Check indoor power cables.


5. Check indoor EEPROM. (including socket insertion)

: Phenomenon of automatic address repetition occurred.

Signal receiving of remote controller is defective.

1. Check remote controller inter-unit cables.

2. Check remote controller.

3. Check indoor power cables.


Signal sending of remote controller is defective.

1. Check sending circuit inside of remote controller.

: Replace remote controller.

E02 Signal sending error to indoor unit


Multiple master remote controllers are recognized.


Stop

(Automatic restart)

* When there is center, operation continues.

Stop

(Sub unit continues operation.)

E09

L20

Central remote controller

98

—

*3


99

—

*3


97

—

Central remote controller b7

Duplicated indoor central addresses on communication of central control system (AI-NET)

(Detected by central controller side)

Multiple network adapters on remote controller communication line


Interruption of central control system (AI-NET) communication circuit


Indoor Gr sub unit error


Stop

(Automatic restart)



(According to handy remote controller)

Continuation/stop

(Based on a case)






1. Check there are multiple master units for 2 remote controllers

(including wireless).

: Master unit is one and others are sub units.

1. Check address setup of central control system network.

(Network adapter SW01)

2. Check network adapter P.C. board.

1. Check multiple network adapters.

2. Check inter-unit cable/miscabling of remote controller.

: Only one network adapter on remote controller communication line

1. Check communication line/miscabling. Check power of indoor unit.

2. Check communication. (XY terminals)

3. Check network adapter P.C. board.

4. Check central controller (such as central control remote controller, etc.).

Check the check code of corresponding unit by handy remote controller.

*2 Check code is not displayed by wired remote controller. (Usual operation of air conditioner is disabled.)

For wireless type models, E01 is notified by the display lamp.

*3 These errors are related to communication of remote controllers (A, B) and central system (AI-NET, X, Y), and [E01], [E02], [E03], [E09], or [E18] is displayed or no check code is displayed on the remote controller according to the error contents.



10-3. Error Mode Detected by LED on Outdoor P.C. Board

<SW800: LED display in bit 1, bit 2, bit 3 OFF>

•

When multiple errors are detected, the latest error is displayed.

•

When LED display is ○ (Go on), there is the main cause of trouble on the objective part of control at CDB side and the unit stops.

•

When LED display is ◎ (Flash), there is the main cause of trouble on the objective part of control at IPDU side and the unit stops.

•

When case thermostat operates, the communication is interrupted on the serial circuit. If continuing the case thermostat operation, a serial communication error occurs because serial sending to the indoor unit is interrupted.

No.

Item

CDB side

5

6

3

4

1

2

7

8

TE sensor error

TD sensor error

TS sensor error

TO sensor error

Discharge temp. error

DC outdoor fan error

Communication error between IPDU

(Abnormal stop)

High-pressure release operation

L29

P04

IPDU side

9

10

11

12

13

14

15

16

EEPROM error


(No abnormal stop)

G-Tr short-circuit protection

Detection circuit error

Current sensor error

Phase missing detection

Comp. lock error

Comp. breakdown

○

: Go on

●

: Go off

◎

: Flash (5Hz)

—

—

P26

P29

H03

H03

H02

H01

F06

F04

F06

F08

P03

P22

Check code

Type A Type B

18

19

18

1B

1E

1A

1C

21

—

—

—

14

16

17

17

1D

1F

●

○

●

D800

(Red)

○

○

●

●

●

○

○

◎

●

◎

●

●

◎

●

◎

◎

●

●

●

LED display

D801

(Yellow)

●

○

●

○

○

○

D802 D803

(Yellow) (Yellow)

●

●

○

●

○

○

●

●

●

●

●

●

● ● ○

○

○

●

●

●

○

●

●

●

●

◎

◎

○

○

○

●

●

●

◎

●

●

<<Check code>>

The check codes are classified into Type A and Type B according to the used remote controller. Be sure to check the remote controller which you use.

Type A :

Neutral 2-cores type wired remote controller such as RBC-AMT21E, RBC-AS21E, and wireless remote controller kit such as TCB-AX21U (W)-E

Type B :

Polarized 3-cores type wired remote controller such as RBC-SR1-PE, RBC-SR2-PE, and central control remote controller such as RBC-CR64-PE

–

70



10-4. Troubleshooting Procedure for Each Check Code

10-4-1. New Check Code/Present Check Code (Central Control Side)

[E01 error]/

*

[99 error]

*

: When central controller [99] is displayed, there are other causes of error.

Is inter-unit cable of A and B normal?

YES

NO

Is there no disconnection or contact error of connector on harness from terminal block of indoor unit?

NO

YES

NO

Is group control operation?

YES

Is power of all indoor units turned on?

YES

NO

Is power supplied to remote controller?

AB terminal: Approx. DC18V

YES

NO

YES

Are two remote controllers set without master unit?

NO

Correct inter-unit cable of remote controller.

Correct connection of connector.

Check circuit cables.

Check power connection of indoor unit.

(Turn on power again.)

Check indoor P.C. board (MCC-1402).

Defect Replace

Correct as a master unit/a sub unit

(Remote controller address connector)

Check remote controller P.C. board.

Defect Replace

[E09 error]/

*

[99 error]

*

: When central controller [99] is displayed, there are other causes of error.

YES

Are two remote controllers set without master unit?

NO

Correct as a master unit/a sub unit

(Remote controller address connector)


Defect Replace



[E04 error]/[04 error]

Does outdoor unit operate?

YES

NO

NO

Is setup of group address correct?

YES

Check item code [14].

NO

Are 1, 2, 3 inter-unit cables normal?

YES

Correct inter-unit cable.

Are connections from connectors of inter-terminal blocks (1, 2, 3) of indoor/outdoor units normal?

YES

NO


Does voltage between

2 and 3 of inter-terminal blocks (1, 2, 3) of indoor unit vary?*

YES

NO

Check indoor P.C. board

(MCC-1402).

Defect Replace

*

As shown in the following figure, perform measurement within

20 seconds after power ON.

S5277G

Black

3

White

2

1

Inter-terminal block

For RAV-SM560AT-E, main circuit on control

P.C. board

Is DC280V applied between terminals of electrolytic capacitor of IPDU main circuit?

For RAV-SM560AT-E, check case thermo.

YES

NO

Replace IPDU.


(MCC-1402 or MCC-1403).

Defect Replace

Check CDB.

Defect Replace

Is DC7V power supplied to CDB?

Are cablings between Pin 2 and Pin 5 of CN800 and between IPDU and CDB normal?

YES

NO

NO

NO

Is case thermo (CN500) connected?

YES

Does case thermo operate?

YES

Check/Correct charged refrigerant amount.

Replace IPDU.



–

72



[E10 error]/[CF error]

<Only for 4-way air discharge cassette type (RAV-SM560UT-E/RAV-SM800UT-E)>

Check indoor control P.C. board (MCC-1402).

Defect Replace

[E18 error]/[97 error]

*

[99 error]

*

: When central controller [99] is displayed, there are other causes of trouble.

Is inter-unit cable of A and B normal?

YES

NO


Is there no disconnection or contact error of connector on harness from terminal block of indoor unit?

NO

YES

YES

Is group control operation?

NO



Is power of all indoor units turned on?

NO


Defect Replace

Check power connection of indoor unit.

(Turn on power again.)

[E08, L03, L07, L08 error]/

*

[96 error] [99 error]

*

: When central controller [99] is displayed, there are other causes of trouble.

E08 : Duplicated indoor unit numbers

L03 : Two or more master units in a group control

L07 : One or more group addresses of [Individual] in a group control

L08 : Unset indoor group address (99)

If the above is detected when power has been turned on, the mode automatically enters in automatic address setup mode. (Check code is not displayed.)

However, if the above is detected during automatic address setup mode, the check code may be displayed.

[L09 error]/[46 error]

Is capacity of indoor unit unset?

NO

YES

Set capacity data of indoor unit.

(Setup item code (DN) = 11)


Defect Replace



[L20 error]/[98 error]

Are cable connections to communication line X, Y normal?

YES

Is central controller [98] displayed?

YES

Is indoor remote controller

[L20] displayed?

YES

Are not multiple same central control network addresses connected?

NO

Check central controller

(including network adapter).

Defect Replace.

NO

NO

YES

Correct cable connection


(MCC-1402 or MCC-1403).

Defect Replace

Correct central control network address.

[L30 error]/[B6 error]

Are outside devices of connector CN80 connected?

YES

NO

Do outside devices normally operate?

YES

NO

Check operation cause.


(MCC-1402 or MCC-1403).

Defect Replace

Check outside devices.

Defect Replace

[b7 error] (Central controller)

Is group operation performed?

YES

Is check code displayed on sub unit of main or sub remote controller?

YES

Check corresponding indoor/outdoor units.

NO

NO

–

74



(MCC-1402 or MCC-1403).

Defect Replace


[P10 error]/[Ob error]

Is connection of float switch connector

(Indoor control P.C. board CH34) normal?

YES

NO

Does float switch operate?

YES

NO

Is circuit cabling normal?

YES

NO


Check and correct cabling/wiring.


(MCC-1402 or MCC-1403).

Defect Replace

Does drain pump operate?

YES

NO

Check drain pipe, etc.

Is power of drain pump turned on?

YES

NO

Replace drain pump.

Check cabling.


(MCC-1402 or MCC-1403).

Defect Replace

[F10 error] [0C error]

Is connection of TA sensor connector

(indoor P.C. board CN104) normal?

YES

Are characteristics of TA sensor resistance value normal?

YES

NO

NO

* Refer to Characteristics-1.


(MCC-1402 or MCC-1403).

Defect Replace


Replace TA sensor.

–

75



[P12 error]/[11 error]

<Only for 4-way air discharge cassette type models (RAV-SM560UT-E/RAV-SM800UT-E)>

Turn off the power.

Are not there connections errors or disconnection on connectors CN333 and CN334 of indoor unit P.C. board (MCC-1402)?

NO

YES

Remove connectors CN333 and

CN334 of indoor unit P.C. board

(MCC-1402).


Does the fan rotate without trouble when handling the fan with hands?

YES

Are resistance values between phases at fan motor connector CN333 motor side of indoor P.C. board (MCC-1402) correct? *1

YES

Is resistance value of fan motor connector

CN333 at motor side of indoor P.C. board

(MCC-1402) correct? *2

YES

Is signal output of indoor fan motor position detection correct? *3

YES

NO

Replace indoor fan motor.

NO


*

1

•

Are not coil windings between between

5

3

1

5

1

(Red lead) and (White lead),

(White lead) and (Black lead), between

For resistance, see the following values.

AIU-P401H/HR, P451, P501, P561, P631, P711, P801

Approx. 70 to 100

AIU-P1121H/HR, P1401, P1601 Approx. 35 to 50

•

Is not earthed between cabinet and 1, 3, 5 10M or more

NO


* 2

Check resistance of fan motor position detection circuit.

Is not coil winding between (Yellow lead) and (Pink lead) opened or shorted? Resistance: Approx. 5 to 20k

NO


* 3

Check fan motor position detection signal.

•

Using a tester, measure the voltage between CN334 and of indoor P.C. board (MCC-1402) under condition that CN333 and

CN334 are mounted and the power is turned on.

Rotate the fan slowly with hands, and check the pin voltage

• swings between 0 to 5V voltage.

Between and : 5V

CN333


(MCC-1402).

Defect Replace

CN334

–

76



[P22 error]/[1A error]

(RAV-SM800AT-E)

Are connections of CN301 and

CN300 of P.C. board correct?

YES

Does the fan rotate without trouble when handling the fan with hands under condition of removing CN301 and CN300 from P.C. board?

YES

NO

The status that the resistance values between leads below are 50 to 80 for 40W motor (ICF-140-40) and 25 to 55 for 60W motor (ICF-140-60-1) is normal.

1 2

Between (White lead) and (Black lead)

3

3

1 of motor winding of connector (CN301)

YES

NO

The status that there is

5k to 20k resistance values between

1 4 of motor position detection of connector (CN300) is normal.

YES

NO

CN301

CN300

* Connector of RAV-SM560AT-E differs from that of RAV-SM800AT-E.

CN300: Motor coil winding

CN301: Motor position detection

Normal fan motor

(Control or CDB P.C. board)

(Control P.C. board or CDB P.C. board)

Defective fan motor

NOTE :

However, GND circuit error inside of the motor is rarely detected even if the above check is carried out.

When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor.

Objective P.C. board

Fan motor winding

Motor position detection

Fan motor winding


Single phase

RAV-SM560AT-E

Control P.C. board

CN300

CN301

Single phase

RAV-SM800AT-E

CDB P.C. board

CN301

CN300

–

77




Check and replace electron expansion valve.

Is operation of

4-way valve normal?

YES

NO

NO

Is flow of refrigerant by electron expansion valve normal?

YES

Is voltage applied to 4-way valve coil terminal in heating operation?

YES

NO

Check 4-way valve

Defect Replace

Is circuit cable normal?

YES

NO

Check and correct circuit.

NO

Are characteristics of TC sensor resistance value normal?


YES

Replace TC sensor.

Check CDB P.C. board.

YES

NO

Check indoor P.C. board.

Defect Replace


Defect Replace

* For RAV-SM560AT-E, check control P.C. board.

• In cooling operation, if high pressure is abnormally raised, [P19 error]/[08 error] may be displayed. In this case, remove cause of pressure up and then check again referring to the item [P04 error]/[21 error].

[F02 error]/[0d error]

Is connection of TC sensor connector

(Indoor P.C. board CN101) normal?

YES

NO

Are characteristics of

TC sensor resistance value normal?

YES

NO



(MCC-1402).

Defect Replace



Replace TC sensor.


[F01 error]/[0F error]

Is connection of TCJ sensor connector


YES

NO

NO


TCJ sensor resistance value normal?

YES



(MCC-1403).

Defect Replace


Replace TCJ sensor.


Is power voltage normal?

YES

NO

Improve the power supply line.

YES

Are connections of cabling/connector normal?

YES

NO

* For RAV-SM560AT-E, check RY01 on the control P.C. board.

Check and correct circuit cables.


Check and correct reactor connection.

Does RY01 relay of

IPDU operate?

NO

YES Are not

“

P26

”

and

“

14

”

errors output when an operation is performed by removing 3P connector of compressor?

YES

* Single-phase type is not provided to RAV-SM560AT-E.

Is not AC fuse fused?

NO

NO

Replace IPDU.

* Replace control P.C. board of RAV-SM560AT-E.

Replace IPDU.


Is compressor normal?

YES

NO

Check IPDU.

Defect Replace

Check rare short of compressor trouble.

Defect Replace

–

79




Are connections of cable/connector normal?

YES

NO

NO


YES

YES

Is not earthed?

NO

Is not winding shorted?

(Is resistance between windings 0.6 to 1.2 ?)

NO

YES

Is not winding opened?

NO

YES

Check IPDU P.C. board.

Defect Replace

Check and correct circuit cabling such as cabling to compressor.

Compressor error Replace



* For RAV-SM560AT-E, replace control P.C. board.

[H03 error]/[17 error]

Are cablings of power and current sensor normal?

YES

Check IPDU.

Defect Replace

NO



–

80



[F06 error]/[18 error]

Are connections of

TE/TS sensor connectors of

CDB CN604/CN605 normal?

YES

NO


Are characteristics of TE/TS sensor resistance values normal?

YES

* (For RAV-SM560AT-E, CN600 TE sensor and CN603 TS sensor)

NO

Replace TE and TS sensors.

Check CDB.

Defect Replace


[F04 error]/[19 error]

Is connection of TD sensor connector of CDB CN600 normal?

YES

NO

* (For RAV-SM560AT-E, CN601 TD sensor)

NO

Are characteristics of TD sensor resistance value normal?

YES


Replace TD sensor.

Check control P.C. board.

Defect Replace


[F08 error]/[1b error]

Is connection of TO sensor connector of CDB CN601 normal?

YES

NO

* (For RAV-SM560AT-E, CN602 TO sensor)

NO

Are characteristics of TO sensor resistance value normal?

YES


Replace TO sensor.

Check CDB.

Defect Replace


–

81



[L29 error]/[1C error]

Are connections of

CDB CN800 and CDB IPDU CN06 connectors normal?

YES

NO

YES

Was the error just after power ON determined?

NO

Are cabling/connector normal?

YES

NO


Check cabling between IPDU and CDB and connector.

IPDU P.C. board error

Defect Replace

Is there no abnormal overload?

NO

YES

NO

Is IPDU P.C. board come to closely contact with heat sink?

YES

Improve and eliminate the cause.

Correct mounting.


Defect Replace

[H02 error]/[1d error]


YES

NO


YES

NO

NO


YES

Improve power line.

Check and correct circuit cabling such as cabling to compressor

(phase missing) and connector.

Is there no slackened refrigerant?

YES

NO

Does electron expansion valve normally operate?

YES

NO

Compressor lock Replace

Check TE and TS sensors. Replace

Check electron expansion valve. Replace

Check IPDU and CDB.

Defect Replace


–

82



[P03 error]/[1E error]

Is protective control such as discharge temprelease control normal?

YES

NO


YES

NO

Correct the cabling and connection of connector.

Check parts. Defect Replace

Is charged refrigerant amount normal?

YES

NO

YES

Is not abnormal overload?

NO

NO


TD sensor resistance value normal?

YES


Check and correct the charged refrigerant amount.

Improve and delete the cause

Replace TD sensor.

Check CDB.

Defect Replace


[H01 error]/[1F error]


YES


NO

Is the circuit detected by current sensor normal?

YES

NO

NO

YES

Improve power line.

Improve and delete the cause.


Check IPDU.

Defect Replace


–

83




Is high-voltage protective operation by

TE sensor normal?

YES

NO

Is connection of cabling connector normal?

YES

NO

Correct connection of cabling connector.

Check TE sensor.

Defect Replace

Does cooling outdoor fan normally operate?

YES

NO

Is connection of connector normal?

YES

NO


Check TE, TC, TS sensors.

Replace electron expansion valve.

NO

NO

Does PMV normally operate?

YES

Is fan motor normal?

YES

Do not TD and TO sensors come off the detection part?

YES

NO

Replace fan motor.

Correct coming-off.


TD, TO, TC sensor resistance values normal?

YES

NO

Replace TD, TO, and TC sensors.

* Refer to Characteristics-3 and 4.

Check charged refrigerant amount.

Check liquid/gas valves.

Check abnormal overload.

Check CDB.

Defect Replace


–

84



[97 error] (Central controller)

NO

Is X, Y communication line normal?

YES

Correct communication line.

Are connections between connectors

CN02, CN03 of network adapter P.C. board and connectors CN309, CN41 of indoor P.C. board

(MCC-1402 or MCC-1403, normal?

YES

NO

NO

Is A, B communication line normal?

YES

YES

Is there no connection error of power line?

NO

YES

Is not power of source power supply turned on?

NO

YES

Did a power failure occur?

NO

Is the network address changed form remote controller?

NO

YES

YES

Is there no noise source, etc.?

NO

Can central remote controller control normally other indoor units?

Is handling of central remote controller reflected on the operation status of indoor unit?

YES

NO

(Same as others)

Check connections of A, B terminal blocks.

Correct communication line of remote controller.

Does network adapter P.C. board

LED (D01) go on?

YES

NO

Can handy remote controller control normally other indoor units?

YES

NO


Correct power cable.

Turn on the source power supply.

Clear the check code.

Eliminate noise, etc.

Check central controller.

Defect Replace

Check network adapter P.C. board and power transformer.

Defect Replace


(MCC-1402 or MCC-1403).

Defect Replace

–

85



[E03 error] (Master indoor unit)

[E03 error] is detected when the indoor unit cannot receive a signal sent from the main remote controller (and central controller).

In this case, check the communication cables of the remote controllers A and B, the central control system X and Y. As communication is disabled, [E03] is not displayed on the main remote controller and the central controller. [E01] is displayed on the main remote controller and [97 error] on the central controller, respectively.

If [E03] occurs during an operation, the air conditioner stops.

[F29 error] / [12 error]

[F29 error] or [12 error] indicates detection of trouble which occurred on IC10 non-volatile memory (EEPROM) on the indoor unit P.C. board during operation of the air conditioner. Replace the service P.C. board.

* If EEPROM has not been inserted when the power was turned on or if EEPROM data never be read/written, the automatic address mode is repeated. In this time, the central controller displays [97 error].

(Power ON)

(Approx. 3 minutes)

[SET] is displayed on main remote controller.

(Approx. 1 minute)

[SET] goes off.

LED (D02) on indoor unit P.C. board flashes with 1Hz for approx. 10 seconds.

(Repetition)

Reboot

(Reset)

[P31 error] (Sub indoor unit)

When the master unit of a group operation has detected [E03], [L03], [L07], or [L08] error, the sub unit of the group operation detects [P31 error] and then it stops. There is no display of the check code or alarm history of the main remote controller.

(In this model, the mode enters in automatic address set mode when the master unit has detected [E03], [L03],

[L07], or [L08] error.)

–

86



10-4-2. Relational Graph of Temperature Sensor Resistance Value and Temperature

Resistance

(k )

10

20

0

10 20

40

TA sensor

Caracteristics-1

30

Resistance

(k )

20

30 40

Temperature [ C]

50

TC, TCJ sensor


10

0

–10 0 10 20 30 40 50 60 70

Temperature [ C]

20

TE, TO, TS sensor

200


Resistance

(k )

(10 C or lower)

100

Resistance

(k )

(10 C or higher)

10

0

200

-10 0 10 20 30 40

Temperature [ C]

50 60 70

0

TD sensor


Resistance

(k )

(50 C or lower)

100

20

Resistance

(k )

(50 C or higher)

10

0 0

50

Temperature [ C]

100

–

87



11. REPLACEMENT OF SERVICE INDOOR P.C. BOARD

[Requirement when replacing the service indoor P.C. board assembly]

In the non-volatile memory (Hereinafter said EEPROM, IC10) installed on the indoor P.C. board before replacement, the type and capacity code exclusive to the corresponding model have been stored at shipment from the factory and the important setup data such as system/indoor/group address set in (AUTO/MANUAL) mode or setting of high ceiling selection have been stored at installation time. Replace the service indoor P.C. board assembly according to the following procedure.

After replacement, check the indoor unit address and also the cycle by a test run.

<REPLACEMENT PROCEDURE>

CASE 1

Before replacement, power of the indoor unit can be turned on and the setup data can be readout from the wired remote controller.

Read EEPROM data *1 (ref. P89)

ò

Replace service P.C. board & power ON *2 (ref. P89)

ò

Write the read data to EEPROM *3 (ref. P90)

ò

Power reset (All indoor units in the group when group operation)

CASE 2

Before replacement the setup data can not be readout from the wired remote controller.

Replace service P.C. board & power ON *2 (ref. P89)

ò

Write the data such as high ceiling setup to EEPROM (According to the customers’ information) *3

ò

Power reset (All indoor units in the group when group operation)


Toshiban lämmitys- ja jäähdytyslaitteiden jälleenmyyjä pääkaupunkiseudulla on Jäähdytinpalvelu RefGroup Oy r

1 Readout of the setup data from EEPROM

(Data in EEPROM contents, which have been changed at the local site, are read out together with data in

EEPROM set at shipment from the factory.)

1. Push

SET

, , and buttons of the remote controller at the same time for 4 seconds or more.

1

(Corresponded with No. in Remote controller)

When group operation, the master indoor unit address is displayed at the first time. In this time, the item code (DN)

10

is displayed. The fan of the selected indoor unit operates and the flap starts swinging if any.

2. Every pushing button, the indoor unit address in the group are displayed successively.

2

Specify the indoor unit No. to be replaced.

3. Using the set temperature / buttons, the item code (DN) can be moved up and down one by one.

3

4. First change the item code (DN) from

10

to

01

. (Setting of filter sign lighting time) Make a note of the set data displayed in this time.

5. Next change the item code (DN) using the set temperature / buttons. Also make a note of the set data.

6. Repeat item 5. and make a note of the important set data as shown in the later table (Ex.).

•

01

to

9F

are provided in the item code (DN). On the way of operation, DN No. may come out.

7. After finishing making a note, push button to return the status to usual stop status.

6

(Approx. 1 minute is required to start handling of the remote controller.)

Minimum requirements for item code

DN

10

11

12

13

14

Contents

Type

Indoor unit capacity

Line address

Indoor address

Droup address

(1) Type and capacity of the indoor unit is necessary to set the revolutions frequency of the fan.

(2) If Line/Indoor/Group addresses differ from those before replacement, the mode enters in automatic address setup mode and a manual resetting may be required.

r

2 Replacement of service P.C. board

1. Replace the P.C. board with a service P.C. board.

In this time, setting of jumper line (cut) or setting of (short-circuit) connecting connectors on the former P.C.

board should be reflected on the service P.C. board.

2. According to the system configuration, turn on power of the indoor unit with any method in the following items.

a) In case of single (individual) operation

Turn on the power supply.

1) Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then proceed to r

3.

(Line address = 1, Indoor address = 1, Group address = 0 (Individual) are automatically set.)

2) Push

SET

, , and buttons of the remote controller at the same time for 4 seconds or more

(

1

operation), interrupt the automatic address setup mode, and then proceed to

(Unit No.

ALL

is displayed.) r

3.

b) In case of group operation

Turn on power of the indoor unit of which P.C. board has been replaced with the service P.C. board with any method in the following items.

1) Turn on power of the replaced indoor unit only.

(However, the remote controller is also connected. Otherwise r

3 operation cannot be performed.)

Same as 1) and 2) in item a).

2) Turn on power of the multiple indoor units including replaced indoor unit.

•

Only 1 system for twin, triple, double twin

•

For all units in the group

Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then proceed to r

3.

* The master unit of a group may change by setup of automatic address. The line address/indoor address of the replaced indoor unit are automatically set to the vacant addresses except addresses belonging to other indoor units which have not been replaced. It is recommended to make a note that the refrigerant line which includes the corresponding indoor unit and that the corresponding indoor unit is master or sub in the group control.


Toshiban lämmitys- ja jäähdytyslaitteiden jälleenmyyjä pääkaupunkiseudulla on Jäähdytinpalvelu RefGroup Oy r

3 Writing of the setup contents to EEPROM

(The contents of EEPROM installed on the service P.C. board have been set up at shipment from the factory.)

1. Push

SET

, , and buttons of the remote controller at the same time for 4 seconds or more.

1

(Corresponded with No. in Remote controller )

In group operation control, the master indoor unit No. is displayed at the first time. (If the automatic address setup mode is interrupted in item 2. - a) - 2) in the previous page, the unit No. the item code (DN)

ALL

is displayed.) In this time,

10

is displayed. The fan of the selected indoor unit operates and the flap starts swinging if any.

2. Every pushing button, the indoor unit numbers in the group control are displayed successively.

2

Specify the indoor unit No. of which P.C. board has been replaced with a service P.C. board.

(When the unit No.

ALL

is displayed, this operation cannot be performed.)

3. Using the set temperature / buttons, the item code (DN) can be moved up and down one by one.

3

4. First set a type and capacity of the indoor unit.

(Setting the type and capacity writes the data at shipment from the factory in EEPROM.)

1) Set the item code (DN) to

10

. (As it is)

2) Using the timer time / buttons, set up a type.

4

(For example, 4-way air discharge cassette type is 0001) Refer to the attached table.

3) Push

SET

button. (OK when the display goes on.)

5

4) Using the set temperature / buttons, set

11

to the item code (DN).

5) Using the timer time / buttons, set the capacity.

(For example, 0012 for class 80) Refer to the attached table.

6) Push

SET


7) Push button to return the status to usual stop status.

6


5. Next write the contents which have been set up at the local site such as the address setup in EEPROM.

Repeat the above procedure 1. and 2.

6. Using the set temperature / buttons, set

01

to the item code (DN).

(Setup of lighting time of filter sign)

7. The contents of the displayed setup data in this time should be agreed with the contents in the previous memorandum in r

1.

1) If data disagree, change the displayed setup data to that in the previous memorandum by the timer time

/ buttons, and then push

SET


2) There is nothing to do when data agrees.

8. Using the set temperature / buttons, change the item code (DN).

As same as the above, check the contents of the setup data and then change them to data contents in the previous memorandum.

9. Then repeat the procedure 7. and 8.

<REMOTE CONTROLLER>

*

10. After completion of setup, push button to return the status to the usual stop status.

6


01

to

9F

are provided in the item code (DN).

On the way of operation, DN No. may come out.

When data has been changed by mistake and

SET button has been pushed, the data can be returned to the data before change by pushing button if the item code (DN) was not yet changed.

6

4

SET DATA

UNIT No.

R.C.

No.

UNIT

1

SET CL

3

5 2

–

90



Memorandum for setup contents (Item code table (Example))

Memo

2E

32

5d

28

2A

2b

60

8b

14

19

1E

11

12

13

DN

01

02

03

06

0F

10

Item

Filter sign lighting time

Dirty state of filter

Central control address

Heating suction temp shift

Cooling only

Type

Indoor unit capacity

Line address

Indoor unit address

Group address

Flap type (Adjustment of air direction)

Temp difference of automatic cooling/ heating selecting control points

Automatic reset of power failure

Option

Thermo output selection (T10

‡

B)

Option

Sensor selection

High ceiling selection

Timer set (Wired remote controller)

Correction of high heat feeling

At shipment

According to type

0000: Standard

0099: Unfixed

0002: +2

°

C (Floor type: 0)

0000: Shared for cooling/heating

According to model type

According to capacity type

0099: Unfixed

0099: Unfixed

0099: Unfixed

According to type

0003: 3 deg (Ts ± 1.5)

0000: None

0002:

0000: Thermo ON

0000:

0000: Body sensor

0000: Standard

0000: Available

0000: None

Type

Item code [10]

Setup data

0001*

0006

Type

4-way air discharge cassette

Concealed duct

* Initial setup value of EEPROM installed on the service P.C. board

Abbreviated name

RAV-SM560/800TU-E

RAV-SM560/800BT-E

Indoor unit capacity

Item code [11]

Setup data

0000*

0009

0012

Model

Invalid

56

80

* Initial setup value of EEPROM installed on the service P.C. board

–

91



12. SETUP AT LOCAL SITE AND OTHERS


12-1-1. Test Run Setup on Remote Controller

<Wired remote controller>

1. When pushing button on the remote controller for 4 seconds or more,

“

TEST

”

is displayed on LC display.

Then push button.

• “

TEST

”

is displayed on LC display during operation of Test Run.

•

During Test Run, temperature cannot be adjusted but air volume can be selected.

•

In heating and cooling operation, a command to fix the Test Run frequency is output.

•

Detection of error is performed as usual. However, do not use this function except case of Test Run because it applies load on the unit.

2. Use either heating or cooling operation mode for [TEST].

NOTE : The outdoor unit does not operate after power has been turned on or for approx. 3 minutes after operation has stopped.

3. After a Test Run has finished, push button again and check that [TEST] on LC display has gone off.

(To prevent a continuous test run operation, 60-minutes timer release function is provided to this remote controller.)

<Wireless remote controller> (Option for 4-way air discharge cassette type)

1. Turn off power of the unit.

Remove the adjuster attached with sensors from the ceiling panel. For removing, refer to the Installation manual attached to the ceiling panel. (Be careful to handle the adjuster because cables are connected to the sensor.) Remove the sensor cover from the adjuster. (1 screw)

2. Change ON of Bit [1: TEST] of the sensor P.C. board switch [S003] to OFF.

Mount the sensor cover and mount the adjuster with sensor to the ceiling panel.

Turn on power of the unit.

3. Push button on the wireless remote controller and select [COOL] or [HEAT] operation mode using

button. (All the display lamps of sensors on the wireless remote controller flash during Test Run.)

•

Do not perform Test Run operation in other modes than [HEAT] / [COOL] mode.

•

Detection of error is performed as usual.

4. After Test Run operation, push button to stop the operation.

5. Turn off power of the unit.

Return Bit [1] of the sensor P.C. board switch [S003] to the original position. (ON

→

OFF)

Mount the adjuster with sensors to the ceiling panel.

Sensor cover

Adjust corner cap

S003

Bit 1 : OFF to ON

ON

Sensor P.C. board

–

92



12-1-2. Setup to Select Function

<Procedure> Use this function while the indoor unit stops.

1

Push

SET

, , and buttons concurrently for 4 seconds or more.

The unit No. displayed at the first time indicates the indoor unit address of the master unit in the group control.

In this time, fan and flap of the selected indoor unit operate.

2

Every pushing button, the indoor unit numbers in the group control are displayed successively.

In this time, fan and flap of the selected indoor unit only operate.

3

Using the set temperature / buttons, set the item code (DN).

4

Using the timer time / buttons, select the setup data.

5

Push

SET

button. (OK if display goes on.)

•

To change the selected indoor unit, proceed to

2

.

•

To change the item to be set, proceed to

3

.

6

Pushing button returns the status to usual stop status.

SET DATA

UNIT No.

R.C.

No.

6

4

1

SET CL

UNIT

5 2

<Operation procedure>

1 2 3 4 5 6

END

3

–

93



Item No. (DN) table (Selection of function)

DN Item

01 Filter sign lighting time

02 Dirty state of filter

0000 : None

0002 : 2500H

0004 : 10000H

0000 : Standard

Description

0001 : 150H

0003 : 5000H

0005 : Clogged sensor used

0001 : High degree of dirt

(Half of standard time)

0064 : No.64 unit

At shipment

According to type

0000 : Standard

03 Central control address

0001 : No.1 unit

0099 : Unfixed

06 Heating suction temp shift

0000 : No shift

0002 : +2

°

C to to

0001 : +1

°

C

0010 : -10

°

C

(Up to recommendation + 6)

0099 : Unfixed

0002 : +2

°

C

(Floor type 0000: 0

°

C)

0F Cooling only 0000 : Heat pump 0001 : Cooling only

(No display of [AUTO] [HEAT])

0000 : Shared for cooling/ heating

10 Type

11 Indoor unit capacity 0000 : Unfixed

12 Line address

0000 : (Air discharge cassette 1) 0001 : (Air discharge cassette 4) to 0037

0001 : No.1 unit

0001 to 0034

0030 : No.30 unit

According to model type

13 Indoor unit address 0001 : No.1 unit to to

According to capacity type

0099 : Unfixed

14 Group address

0064 : No.64 unit

0001 : Master of group

0099 : Unfixed

0099 : Unfixed

19 Flap type

(Adjustment of air direction)

0000 : Individual

0002 : Sub of group

0000 : No flap

0004 : 4-way

0001 : Swing only According to type

0003 : 3 deg

(Ts±1.5)

1E Temp difference of automatic cooling/ heating mode selection COOL

→

HEAT, HEAT

→

COOL

0000 : 0 deg to 0010 : 10 deg

(For setup temperature, reversal of COOL/HEAT by ± (Data value)/2)

28 Automatic reset of power failure

0000 : None 0001 : Reset

2A Option

0000 : None

2b Thermo output selection (T10

)

2E Option

0000 : Indoor thermo ON 0001 : Output of outdoor comp-ON receiving

0002 : Default

0000: Thermo. ON

0000 : Default

30

31

32

40

Option

Option

Sensor selection

Option

0000 : Body TA sensor 0001 : Remote controller sensor

0000 : Default

0000 : Default

0000 : Body sensor

0003 : Default

5d High ceiling selection

(Air volume selection)

0000 : Standard filter

0001 : Oil guard, Super-long life, Optical regenerative deodorization

0003 : High performance (65%), High performance (90%),

High antibacterial performance (65%)

0000 : Available (Operable) 0001 : Unavailable (Operation prohibited)

0000 : Standard

0000 : Available 60 Timer set

(Wired remote controller)

8b Correction of high heat feeling

0000 : None 0001 : Correction 0000 : None

–

94



12-1-3. Cabling and Setting of Remote Controller Control

2-remote controller control (Controlled by two remote controllers)

One or multiple indoor units are controlled by two remote controllers.

(Max. 2 remote controllers are connectable.)

• 1 indoor unit is controlled by 2

Remote controller

Remote controller switch (Master) switch (Sub)

remote controllers

Sold separately Sold separately

A B

Indoor unit

1 2 3

Remote controller cables (Procured locally)

Terminal block for remote controller cables

1 2 3

Outdoor u nit

(Setup method)

One or multiple indoor units are controlled by two remote controllers.

(Max. 2 remote controllers are connectable.)

Rear side of remote controller P.C. board

<Wired remote controller>

How to set wired remote controller to sub remote controller

Insert the remote controller address connector provided on the rear side of the remote controller switch P.C. board into Sub in exchange for Master.

Remote controller address connector

Master remote controller

Sub remote controller

<Wireless remote controller>

How to set wireless remote controller to sub remote controller

Change OFF of Bit [3: Remote controller Sub/

Master] of switch S003 to ON.

Sensor cover

Adjust corner cap

[Operation]

1. The operation contents can be changed by Last-push-priority.

2. Use a timer on either Master remote controller or Sub remote controller.

–

95


S003

Bit 1 : OFF to ON

ON

Sensor P.C. board


12-1-4. Monitor Function of Remote Controller Switch

n

Call of sensor temperature display

<Contents>

Each sensor temperature of the remote controller, indoor unit, and outdoor unit can become known by calling the service monitor mode from the remote controller.

<Procedure>

1

Push + buttons simultaneously for 4 seconds or more to call the service monitor mode.

The service monitor goes on, the master indoor unit

No. is displayed, and then temperature of the item

code

00

is displayed.

2

Push the temperature setup / buttons to select the sensor No. (Item code) of the sensor to be monitored.

The sensor numbers are described below:

4

1

SET DATA

SET CL

UNIT No.

R.C.

No.

UNIT

3


1 2 3 4

Returned to usual display

2

Indoor unit data

Item code

00

01

02

03

04

Data name

Room temp (under control) *1

Room temp (remote controller)

Indoor suction temp

Indoor coil temp (TCJ)

Indoor coil temp (TC)

Outdoor unit data

Item code

60

61

62

63

64

65

Data name

Heat exchanger temp TE

Outside temp TO

Discharge temp TD

Suction temp TS

—

Heat sink temp THS

*1 Only master unit in group control

3

The temperature of indoor units and outdoor unit in a group control can be monitored by pushing

button to select the indoor unit to be monitored.

4

Pushing button returns the display to usual display.

–

96


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Calling of error history

<Contents>

The error contents in the past can be called.

<Procedure>

1

Push + buttons simultaneously for 4 seconds or more to call the service check mode.

Service Check goes on, the item code

01

is displayed, and then the content of the latest alarm is displayed. The number and error contents of the indoor unit in which an error occurred are displayed.

2

In order to monitor another error history, push the set temperature / buttons to change the error history No. (Item code).

Item code

01

(Latest)

→

Item code

04

(Old)

NOTE : Four error histories are stored in memory.

3

Pushing button returns the display to usual display.

<Requirement>

Do not push button, otherwise all the error histories of the indoor unit are deleted.

3

SET DATA

UNIT No.

R.C.

No.

SET CL

UNIT

1


1 2 3

Returned to usual display

2

(Group control operation)

In a group control, operation of maximum 8 indoor units can be controlled by a remote controller.

The indoor unit connected with outdoor unit (Individual/Master of twin) controls room temperature according to setting on the remote controller.

<System example>

OUT OUT OUT

IN

1-1

IN

Master

2-1

IN

3-1

Remote controller

OUT

IN

4-1

OUT

IN

7-1

Max. 8 units

(1) Display range on remote controller

The setup range (Operation mode/Air volume select/Setup temp) of the indoor unit which was set to the master unit is reflected on the remote controller.

(2) Address setup

Turn on power of the indoor unit to be controlled in a group within 3 minutes after setting of automatic address.

If power of the indoor unit is not turned on within 3 minutes (completion of automatic address setting), the system is rebooted and the automatic address setting will be judged again.

1) Connect 3 In/Out cables surely.

2) Check line address/indoor address/group address of the unit one by one.

3) The unit No. (line/indoor gout address) which have been set once keep the present status as a rule if the unit No. is not duplicated with one of another unit.

–

97



12-2. Network Adapter

Model name: TCB-PCNT20E

12-2-1. Function

A network adapter is an optional P.C. board to connect the indoor unit to AI net (Central control remote controller).

12-2-2. Microcomputer Block Diagram

Remote controller

Indoor unit

Optional communication P.C. board

CN41

Indoor control

P.C. board

CN309

AC220-

240V

CN02


MCU

Terminal block

(A.B)

Power transformer

AC14V

CN01

5V power supply

5V

Network address setup switch

AI-NET communication circuit

CN03

Terminal block

(X.Y)

EEPROM


Network

Communication units: Total 64 units

Communication distance: 1km

12-2-3. Network Address Setup Switch (SW01)

4

5

6

7

8

No.

1

2

3

LSB

Central control address

MSB

Item

Setup availability from remote controller

Setup contents

1 2 3 4 5 6

××× × × ×

: No.1 unit

〇×× × × × : No.2 unit

:

×

〇

: Switch OFF

: Switch OFF

〇〇〇〇〇 ×

: No.63 unit

〇〇〇〇〇〇 : No.64 unit

Switch OFF : Setup available from remote controller

Switch ON : Setup unavailable from remote controller

12-2-4. LED Display Specification

LED No.

D01 (Red)

D02 (Red)

D03 (Red)

D04 (Red)

Function

Communication status: Remote controller

Communication status: Center

Operation status of air conditioner

Air conditioner error

Go on

During communication

During communication

Running

Error

Go off

No communication (including communication error)

No communication (including communication error)

Stop

Normal

* For positions of LED, refer to P.C. board external view.



12-2-5. Communication Cable Specifications

No.

1

2

Communication circuit

Remote controller communication side

AI NET side

Cable

Cable type

Cable dia.

Cable length

Cable

Cable type

Cable dia.

Cable length

Communication cable specifications

Neutral 2-cable type

CVV (JIS C3401) Controlling vinyl insulation vinyl seal cable

VCTF (JIS C3306) Vinyl cab tire round type cord

VCT (JIS C3401) 600V vinyl cab tire cable

VVR (JIS C3401) Vinyl insulation seal cable round type

MVVS Cable with net shielding for instrumentation

CPEVS Shielded polyethylene insulation vinyl seal cable

0.5 to 2.0 mm²

Total cable length Max. 500m

(Up to 400m when there is wireless remote controller in group)

Neutral 2-cable type

MVVS Cable with net shielding for instrumentation

1.25 mm²

≤

500 m, 2.0 mm²

≤

1 km

Total cable length : Up to 500m when using 1.25mm² cable,

Up to 1000m when using 2.0mm² cable

12-2-6. Cable Connection

<Network cable connection>

• Install a network adapter per 1 group of the group control (including single unit control). Also install a network adapter to one of the indoor units in the group control.


X Y

Network adapter

Indoor unit

Indoor unit

Indoor control

P.C. board

A B

Indoor control

P.C. board

A B

Indoor unit

Indoor control

P.C. board

A B

Indoor unit

Indoor control

P.C. board

A B

X Y

Network adapter

Indoor unit

Indoor unit

Indoor control

P.C. board

A B

Indoor control

P.C. board

A B

Remote controller

Connectable indoor units per group: Up to 8 units

(1-remote controller system*)

* In case of 2-remote controllers system,

the connectable indoor units are up to 7 units.



12-3. How to Set an Address Number

When connecting indoor units to the central control remote controller by using a network adapter, it is required to set up a network address No.

•

The network address No. should be agreed with the line No. of the central control remote controller.

•

When the unit was shipped from the factory, the network address has been set to 1.

The following two methods to set the network address are provided.

1. How to set from the remote controller at indoor unit side

* This method is effective only when

of set switch SW01 on the network adapter P.C. board is turned off.

<Procedure> Set the network address while the unit stops.

1

Push + buttons for 4 seconds or more.

In the group control, the unit No

RLL

is displayed, and then all the indoor units in the group control are selected. In this time, fans of all the selected indoor units are turned on. (Fig. 1)

(Keep status of

RLL

display without pushing button.)

3

For the individual remote controller which is not included in a group control, the line address and the indoor unit address are displayed.

2

Specify the item code

03

using the temperature setup /

buttons.

3

Using the timer time / buttons, select the setup data.

1

5

SET DATA

SET CL

4

Fig. 1

UNIT No.

R.C.

No.

UNIT

Table 1

The setup data are shown in the right table (Table 1).

4

Push

SET

button. (OK if display goes on)

•

To change the item to be set, return to

2

.

5

Push button.

The status returns to the usual stop status.

Setup data

0001

0002

0003

:

0064

0099

Network address No.

1

2

3

:

64

Unset (Setup at shipment from factory)

2

2. How to set by the switch on the network adapter P.C. board

When the remote controller cannot be found or when you don

’ t want to change setting of the network address

No. from the remote controller, use the setup switch SW01 on the network adapter P.C. board (Network address

No. setup switch) to set the address No.

<Procedure>

(1) Turn off the power.

Invalid address No. setup from remote controller

No. setup switch

(2) Turn

of the address No. setup switch SW01 to ON side. Accordingly the address No. set on the remote controller is invalidated. (See Fig. 2.)

ON

1 2 3 4 5 6 7

ON side

OFF side

(Numeral side)

(3) Set the network address No. with combination of ON and OFF of

to

of the address No. setup switch

SW01. The relation between combination of ON/OFF and address No. is described in Table 2. The right figure (Fig. 3) shows an example of case that the address No. is set to 16.

Address No. setup

SW01

Fig. 2

Setup example of address No. 16

ON

When the network address No. has been changed, be sure to turn of power of the central control remote controller again or to reset the remote controller using the reset hole on the operation panel of the central control remote controller.

1 2 3 4 5 6 7

ON side

OFF side

(Numeral side)

Fig. 3

–

100



20

21

22

17

18

19

23

24

13

14

15

16

10

11

12

29

30

31

25

26

27

28

32

Address No.

01

02

03

07

08

09

04

05

06

〇

×

〇

×

〇

×

〇

×

〇

×

〇

×

〇

×

〇

×

〇

×

〇

×

〇

〇

×

〇

×

×

〇

×

①

×

〇

〇

×

〇

×

×

×

×

〇

×

〇

〇

〇

〇

×

×

〇

〇

〇

〇

×

〇

×

×

〇

×

×

〇

〇

〇

×

②

×

×

×

〇

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

⑥

×

×

×

×

〇

〇

〇

〇

〇

〇

〇

〇

〇

×

×

〇

〇

〇

〇

〇

〇

〇

×

×

×

×

×

×

×

×

×

×

⑤

×

×

×

×

×

〇

〇

×

×

×

×

×

×

〇

〇

×

〇

〇

〇

〇

〇

〇

〇

〇

〇

×

〇

〇

〇

×

×

×

④

×

×

×

×

〇

×

×

〇

〇

〇

×

×

×

〇

〇

×

〇

〇

〇

×

×

〇

×

〇

〇

〇

×

×

×

×

×

〇

③

×

×

〇

〇

Table 2 Network address No. setup table (SW01)

52

53

54

49

50

51

55

56

45

46

47

48

42

43

44

61

62

63

57

58

59

60

64

Address No.

33

34

35

39

40

41

36

37

38

〇

×

〇

×

〇

×

〇

×

〇

×

〇

×

〇

×

〇

×

〇

×

〇

×

〇

〇

×

〇

×

×

〇

×

①

×

〇

〇

×

〇

×

×

×

×

〇

×

〇

〇

〇

〇

×

×

〇

〇

〇

〇

×

〇

×

×

〇

×

×

〇

〇

〇

×

②

×

×

×

〇

×

〇

〇

×

×

×

×

×

×

〇

〇

×

〇

〇

〇

〇

〇

〇

〇

〇

〇

×

〇

〇

〇

×

×

×

④

×

×

×

×

〇 : ON side

× : OFF side

〇

〇

〇

〇

〇

〇

〇

〇

〇

×

×

〇

〇

〇

〇

〇

〇

〇

×

×

×

×

×

×

×

×

×

×

⑤

×

×

×

×

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

⑥

〇

〇

〇

〇

〇

×

×

〇

〇

〇

×

×

×

〇

〇

×

〇

〇

〇

×

×

〇

×

〇

〇

〇

×

×

×

×

×

〇

③

×

×

〇

〇

Requirement in Service

When using this product as service part to replace the network adapter P.C. board, be sure to match the setup of the setup switch SW01 (Network address No. setup switch) on the network adapter P.C. board with the P.C.

board setup before replacement.

–

101



12-4. Display and Operation of Main Remote Controller and Central Control Remote

Controller

1. Turn on all the power supplies of the air conditioner, and then turn on power of the central control remote controller (Line 16 RBC-SXC1P, Line 64 TCB-SC641). If both power supplies are simultaneously turned on or if they are turned on reversely, the check code [97] may be temporarily displayed on the central remote controller. When settings of connecting cables and central control address are correct, the connected air conditioner is displayed on the central control remote controller.

2. As shown in the following table, there is difference of LCD between main remote controller (RBC-AMT21) and the central control remote controller and also there are restriction and others of operation.

1

2

3

4

5

6

Item

Air volume selection

Air speed selection in FAN mode

Air speed selection in DRY mode

Air direction adjustment

[SPEED] [AUTO]

[SPEED]

[HH]

[H]

[L]

[HH]

Contents

Main remote controller Central control remote controller

[VOL]

[VOL]

[AUTO]

[H]

[M]

[L]

[FIX]

[VOL] [SPEED]

[HH]

[H]

[L]

[SPEED] [AUTO]

[HH]

[H]

[L]

[VOL]

[AUTO]

[H]

[M]

[L]

[AUTO]

[SWING] and air direction adjustment

(No display)

[LOUVER]

Display of air speed selection differs.

In duct type

Cautions

Air speed becomes [H] and [FIX].

When handling main remote controller, [AUTO] is not displayed. If [AUTO] is selected at center side,

[AUTO] is displayed on the main remote controller.

In this time, the air speed becomes [HH].

On the central remote controller, only [AUTO] is displayed. The display on the main remote controller changes to [AUTO] by changing the setup temperature/louver, and the air speed is automatically selected.

On the central remote controller, only [LOUVER] is displayed. It is displayed while flap is swinging, and the setup operation of [LOUVER] becomes selection of swing ON/OFF.

To set up the air direction, use the main remote controller.

In a model type without air direction adjustment

Check button Test run (4 seconds)

Manual operation for

[LOUVER]

Check code display and check reset (3 seconds)

Check code 3-digits display (alphabet + 2-digits numeral)

2-digits display (alphabet or numeral)

The function of long-pushing operation for the check button differs. If the check reset operation on the central remote controller is performed during operation of air conditioner, the operation stops once, and then the operation restarts. (Error of air conditioner is cleared.)

Display of check code differs.

Ex. : Float switch operation

Main side: [P10]

Center side: [0b]

3. When using the remote controller together with the former one (RBC-AM1, AT1), the display on the main remote controller differs if [Last-push priority/Center/Operation Prohibited] is selected from the central control remote controller.

Item

1 Last-push priority

2 Center

3 Operation prohibited

New remote controller

(RBC-AMT21)

(No display)

Contents

Former remote controller

(RBC-AM1, AT1)

(No display)

[CENTER] goes on [CENTER] goes on

[CENTER] flashes

Remarks

All the settings and ON/OFF operations are available.

The setup contents on the central control remote controller are fixed, and only ON/OFF operation and timer setup operation are available on the main remote controller.

The setup contents on the central control remote controller are fixed, and the air conditioner stops.

Operation from the main remote controller is unavailable.

–

102



13. ADDRESS SETUP

13-1. Address Setup

<Address setup procedure>

When an outdoor unit and an indoor unit are connected, or when an outdoor unit is connected to each indoor unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address setup completes with power-ON of the outdoor unit. The operation of the remote controller is not accepted while automatic address works. (Approx. 4 to 5 minutes)

Setup of line address of outdoor unit, indoor unit address, and group address

Completion of cabling work

Do you arbitrarily set the indoor unit address?

YES

(MANUAL)

Connect one remote controller with one indoor unit (1 : 1) tentatively with communication cable.

NO

NO

Is refrigerant line 1 line?

YES

NO

Is group control performed?

YES (To AUTO address mode)

Do you change setting after automatic setting at the first time?

YES

Turn on power of outdoor unit.

Set to all indoor units one by one.



After completion of address setup, change is to arbitral address/group manually.

address finishes within

4 to 5 minutes.

END

•

When the following addresses are not stored in the neutral memory (IC10) on the indoor P.C. board, a test run operation cannot be performed. (Unfixed data at shipment from factory)

Line address

Indoor unit address

Group address

Item code

12

13

14

Data at shipment

0099

0099

0099

Setup data range

0001 (No. 1 unit) to 0030 (No. 30 unit)

0001 (No. 1 unit) to 0030 (No. 30 unit)

Max. value of indoor units in the identical refrigerant line (Double twin = 4)

0000 : Individual (Indoor units which are not controlled in a group)

0001 : Master unit (1 indoor unit in group control)

0002 : Sub unit (Indoor units other than master unit in group control)

–

103



13-2. Address Setup & Group Control

<Terminology>

Indoor unit No.

: N - n = Outdoor unit line address N (Max. 30) - Indoor unit address n (Max. 64)

Group address : 0 = Individual (Not group control)

1 = Master unit in group control

2 = Sub unit in group control

Master unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/from the remote controllers and sub indoor units. (* It has no relation with an indoor unit which communicates serially with the outdoor units.)

The operation mode and setup temperature range are displayed on the remote controller

LCD. (Except sir direction adjustment of flap)

Sub unit (= 2) : Indoor units other than master unit in group operation

Basically, sub units do not send/receive signals to/from the remote controllers.

(Except errors and response to demand of service data)

13-2-1. System configuration

1. Single 2. Single group operation

Outdoor

Indoor

1-1

Individual

(Master/Sub)

Remote controller

2-1

Sub

1-1

Sub

4-1

Master

3-1

Sub

8-1

Sub

13-2-2. Automatic address example from unset address (No miscabling)

1. Standard (One outdoor unit)

1) Single

2) Gr operation

(Multiple outdoor units = Miltiple indoor units only with serial communication)

1-1

Individual

(Master/Sub)

2-1

Sub

1-1

Sub

4-1

Master

8-1

Sub

Max. 8 units

Only turning on source power supply (Automatic completion)

–

104



13-3. Address Setup

In case that addresses of the indoor units will be determined prior to piping work after cabling work

(Manual setting from remote controller)

<Address setup procedure>

•

Set an indoor unit per a remote controller.

•

Turn on power supply.

1

Push

SET

+ + buttons simultaneously for 4 seconds or more.

2

(

←

Line address) Using the temperature setup

/ buttons, set

12

to the item code.

3

Using timer time / buttons, set the line address.

4

Push

SET

button. (OK when display goes on.)

5

(

←

Indoor unit address) Using the temperature setup

/ buttons, set

13


6

Using timer time / buttons, set 1 to the line address.

7

Push

SET


8

(

←

Group address) Using the temperature setup

/ buttons, set

14


9

Using timer time / buttons, set

0000

to Individual,

0001

to Master unit, and

0002

to sub unit.

10

Push

SET


11

Push button.

Setup completes.

(The status returns to the usual stop status.)

(Example of 2-lines cabling)

(Real line: Cabling, Broken line: Refrigerant pipe)

Line address 1

Indoor unit address 1

Group address 1

Group address

Individual : 0000

Master unit : 0001

Sub unit : 0002

OUT

IN

2

1

2

OUT

IN

For the above example, perform setting by connecting singly the wired remote controller without remote controller inter-unit cable.

In case of group control

SET DATA

UNIT No.

R.C.

No.

3, 6, 9

END

1

11

SET CL

UNIT

2, 5, 8

4, 7, 10


1 2 3 4 5 6 7 8 9 10 11

END

–

105


Toshiban lämmitys- ja jäähdytyslaitteiden jälleenmyyjä pääkaupunkiseudulla on Jäähdytinpalvelu RefGroup Oy n

Confirmation of indoor unit No. position

1. To know the indoor unit addresses though position of the indoor unit body is recognized

•

In case of individual operation (Wired remote controller : indoor unit = 1 : 1)

(Follow to the procedure during operation)

<Procedure>

1

Push button if the unit stops.

2

Push button.

Unit No.

1-1

is displayed on LCD.

(It disappears after several seconds.)

The displayed unit No. indicate line address and indoor unit address.

(When other indoor units are connected to the identical remote controller (Group control unit), other unit numbers are also displayed every pushing button.

SET CL

UNIT No.

UNIT

2

CODE No.


1 2

END

1

Operation

2. To know the position of indoor unit body by address

•

To confirm the unit No. in the group control

(Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.)

<Procedure>

The indoor unit numbers in the group control are successively displayed, and fan, flap, and drain pump of the corresponding indoor unit are turned on. (Follow to the procedure during operation)

1

Push and buttons simultaneously for 4 seconds or more.

•

Unit No.

ALL

is displayed.

•

Fans and flaps of all the indoor units in the group control operate.

2

Every pushing button, the unit numbers in the group control are successively displayed.

•

The unit No. displayed at the first time indicates the master unit address.

•

Fan and flap of the selected indoor unit only operate.

3

Push button to finish the procedure. All the indoor units in the group control stop.

1

3

SET DATA

SET CL


1 2 3

END

UNIT No.

R.C.

No.

UNIT

2

–

106



RAV-SM800AT-E LED display when SW800 : Bit 1, 2, 3, 4 OFF

•

When multiple errors are detected, the latest error is displayed.

•

While LED displays

〇

(go on), there is the main cause of error in control at CDB side and it stops abnormally.

•

While LED displays

◎

(flash), there is the main cause of error in control at IPDU side and it stops abnormally.

•

For an error in case thermo operation, the communication is interrupted on the serial circuit. If continuing the case thermo operation, serial sending to the indoor unit is interrupted and a serial communication error is output.

CDB side

No.

Item

4

5

6

1

2

3

7

TE sensor error

TD sensor error

TS sensor error

TO sensor error

Discharge temp error

Out DC fan error


(Abnormal stop)

8 High-pressure release operation

IPDU side

9

10

11

12

13

14

15

16

EEPROM error


(No abnormal stop)

G-Tr short-circuit protection

Detection circuit error

Current sensor error

Phase missing detection

Comp lock error

Comp breakdown

〇

: Go on,

●

: Go off,

◎

: Flash (5 Hz)

Table A

Check code

B type

1B

1E

1A

18

19

18

1C

21

—

—

—

14

16

17

17

1D

1F

LED display

D800 D801 D802 D803

(Red) (Yellow) (Yellow) (Yellow)

〇

〇

●

●

●

〇

●

〇

●

〇

〇

〇

●

●

〇

●

〇

〇

●

●

●

●

●

●

〇 ● ● 〇

●

〇

●

◎

●

◎

●

●

◎

〇

〇

●

●

◎

◎

●

●

●

●

●

〇

●

●

●

●

◎

◎

〇

〇

〇

●

●

●

◎

●

●

–

107



14. TROUBLESHOOTING <WALL TYPE>

14-1. Summary of Troubleshooting

<Wired remote controller type>



•

+ and

–

screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch

•





•


•


•


•

Is not detected an overflow error?

•



•


c) Outdoor fan does not rotate or air speed changes.

•


•


•



•

Is not during emergency operation?

•



Are connecting cables of indoor unit and remote controller correct?



Trouble

→

Confirmation of check code display

→


NOTE :

For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cables of the remote controller and the signal line to shield cables.

–

108



(a) Outline of Judgment

A primary judgment to detect cause of error exists on the indoor unit or outdoor unit is performed in the following procedure.

<Judgment by flashing display on the indoor unit display part>

The indoor unit monitors operating status of the air conditioner, and if a protective circuit works, contents of the self-diagnosis are displayed with a block restricted to the following cases on the indoor unit display part.

Remote controller code

—

Block display

Operation lamp display flashes. (1Hz)

00 Operation lamp display flashes. (5Hz)

01

02

03

—

Operation/timer lamp displays flash. (5Hz)

Operation/defrost lamp displays flash. (5Hz)

Operation/timer/defrost lamp displays flash. (5Hz)

——

Contents of self-diagnosis

Power failure (In power ON)

Indoor P.C. board

Inter-unit cables/transmission system

Outdoor P.C. board

Cycle system, etc.

——

Check code

——

0b to 0F, 11, 12, b5, b6

04

14 to 19, 1A, 1C

1d, 1E, 1F, 21

1b, 8b

(b) Self-diagnosis by check code on the remote controller

Refer to

“

Judgment of error mode by check code on the remote controller

”

.

<Wireless remote controller type>



•

+ and

–

screwdrivers, spanners, radio cutting pliers, nippers, etc.

•





•


•


•


•



•


c) Outdoor fan does not rotate or air volume changes.

•


•


•



•

Is not forced operation performed?

•



Are connecting cables between indoor unit and receiving unit correct?

–

109





Trouble

→

Confirmation of check code by service mode

→


NOTE :

For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cable of the signal line to shield cable.

(a) Outline of Judgment

A primary judgment to detect cause of error exists on the indoor unit or outdoor unit is performed in the following procedure.

<Judgment by flashing display on the indoor unit display part>

The indoor unit monitors operating status of the air conditioner, and if a protective circuit works, contents of the self-diagnosis are displayed with a block restricted to the following cases on the indoor unit display part

(Sensors).

Remote controller code

—

Block display


00

01


Operation/timer lamp displays flash. (5Hz)

02

03

—

Contents of self-diagnosis

Power failure (In power ON)

Indoor P.C. board

Inter-unit cables/transmission system

Operation/defrost lamp displays flash. (5Hz) Outdoor P.C. board

Operation/timer/defrost lamp displays flash. (5Hz)

——

Cycle system, etc.

——

Check code

——

0b to 0F, 11, 12, b5, b6

04

14 to 19, 1A, 1C

1d, 1E, 1F, 21

1b, 8b

(b) Self-diagnosis by check code on the remote controller

In the wireless type models, the self-diagnosis for the protective circuit operation is performed by handling the remote controller. First change the operation mode of the remote controller, and then perform the selfdiagnosis by the displayed contents of the remote controller and the existence of operation lamp flashing

(5Hz) and buzzer sound (Pi, Pi, Pi). During self-diagnosis operation, the timer lamp usually flashes (5Hz).

Selection of remote controller operation mode

1) Selection of service mode

Push the select button at lower side of the wireless remote controller with a tip of pencil, etc. for approx. 3 seconds or more. In this time, check that [00] is displayed on the room temp. display part and other displays go off.

2) Selection of normal mode

Push the reset button at lower side of the wireless remote controller with a tip of pencil, etc. In this time, check that [

“

AM

”

] display on the time display part flashes.

Cautions in service

1) After service work, be sure to push the reset button to return the mode to normal mode.

2) After service by the check codes, turn off the power switch once and then turn on the switch to return the stored memory in microcomputer to the initial status.

–

110



(c) Self-diagnosis with remote controller

With the indoor unit control, self-diagnosis of protective circuit action can be done by turning the remote controller operation into service mode, operating the remote controller, observing the remote controller indicators and checking whether TIMER lamp flashes (5 Hz).

NOTE :

• To perform this self-diagnosis, the remote controller with the service code of 43069666 is required.

<How to select remote control operation mode>

1. Selecting service mode

Push the switch button provided on rear bottom of the wireless remote control with a tip of pencil for more than 3 seconds. Make sure the setting temperature

“ ”

is displayed on the display and other display is turned off.

2. Selecting ordinary mode

Push the all clear button (ACL) on the rear bottom of the wireless remote controller with a tip of pencil for more than 3 seconds. Make sure the operation mode display, wind volume display, clock display and setting temperature display are turned on and

“

:

”

of the clock display is flashing.

<Cautions when doing service>

1. After completion of servicing, always push the all clear (ACL) button to return the operation mode to the normal mode.

2. After completion of servicing by the check code, turn off the power once and then turn on the power to reset memorized contents of the microcomputer to the initial status.

All clear button

Switch for selecting service mode

ACL CLOCK

ACL CLOCK

(Rear bottom of remote control)

Rear bottom cover

–

111



<Self-diagnosis by check codes>

1. The self-diagnosis by the check codes is conducted under the block displays.

2. Remote controller key operation under the service mode is conducted by ON/OFF or TEMP. The remote controller display by each key operation is varied as shown below. Two digit number is displayed in a hexadecimal number.

3. The self-diagnosis by the check codes is conducted with procedures shown below.

1) Enter the service mode and make sure the off timer display of the remote controller shows

“ ”

.

2) Operate the

“

ON/OFF

”

key and make sure the timer lamp on the display section is flashing (5 Hz).

3) At the same time, also make sure the operation lamp is also flashing. This shows that the protection circuit on the indoor P.C. board is working.

4) Operate the TEMP. key and make sure the remote controller display shows “ ” and flashing of the operation lamp. If the operation lamp is flashing, it shows the protection circuits for connecting cable is working or thermal fuse is blown.

5) In the same way, operate the TEMP. key so that the display is increased one by one to continue checks by the self-diagnosis as shown in the next table. From

“ ”

up to “ ” check operations of protection circuits for each block, and

“ ”

to

“ ”

check operations of the typical protection circuits.

Operating key

ON/OFF

Indication after operation

“

”

TEMP. (Up)

TEMP. (Down)

“

AUTO

”

LOUVER

“

SET

”

LOUVER

1 is added to data before operation.

(Example)

1 is subtracted from data before operation.

(Example)

10 is subtracted from data before operation.

(Example)

“

“

Data before operation is directly transferred.

(Example)

“

“ ” “

”

” “

” “

“

”

”

”

”

–

112



14-2. Troubleshooting with CHECK Display of Remote Controller

14-2-1. In case of main remote controller/sub-remote controller A

RBC-AM1E RBC-AS1E

1. Operation for CHECK display

When pushing the CHECK switch, the indoor unit No. (Group address No.) which sends the check code is displayed at the right side of the set up TEMP. display section, and the check data of 2 errors/faults x 16 units is displayed in the set up temp. display section.

If there is a filter display, the indoor unit No. which sends the filter signal is displayed at the right side of the set up temp. display section, and then the check code is displayed as described above.

(1 display for 3 seconds)

F A N

CHECK ADDRESS

UNIT

1 2

H E AT AU TO

CENTRAL

FILTER

PREHEA

DEFROST

L O U V E R

M A N UA L

MODE

FILTER CHECK

ON/OFF

LCD display “STANDBY” is present.

• When phase-sequence of power wiring is incorrect

• When combination of indoor units is over capacity

• Indoor unit with command excepted by operation mode select switch

• When there is an indoor unit which stopped with the indoor overflow alarm “0b”.

• Indoor unit with cooling operation command excepted by heating priority control

RESET switch

Push the switch in the hole with pin.

The remote controller resets the power supply.

(All data is cleared.)

CHECK switch

Push for 0.5 seconds to display CHECK code.

Push for 3 seconds to reset indoor microprocessor.

(While indoor microprocessor is locked by ALL STOP alarm)

Push for 10 seconds to clear check data.

–

113



2. Reading of CHECK monitor display

<7 segment display>

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Hexadecimal notation

Decimal notation

<Display on CHECK monitor>

CHECK

1 2

UNIT

FILTER

FILTER sign

Indoor unit No.

CHECK code

<FILTER data>

(Example)

Case that Filter signal is sent from No.1 and No.16 units under group operation

UNIT

FILTER

UNIT

FILTER

<CHECK data>

(Example)

Room temp.sensor of No.1 is defective.

In No.16, first the heat exchanger sensor has failed.

Next, interconnection wire (serial signal line) of indoor/outdoor is defective.

CHECK

1

UNIT CHECK

1

UNIT CHECK

2

UNIT

(Example) There is no check data.

CHECK

–

114



14-2-2. Remote controller with timer

RBC-AM1E


When pushing the CHECK switch, the indoor unit No. (Group address No.) which sends the check code is displayed in the set up temp. display section, and check code is displayed in the TIME display section.

If FILTER display (air filter cleaning sign) is present, the indoor unit No. which sends the filter signal is displayed in the set up temp. display section, and then the check code is displayed. (1 display for 3 seconds)

LCD display STANDBY is present.

• When phase-sequence of power wiring is incorrect

• When combination of indoor units is over capacity.

• Indoor unit with command excepted by operation mode select switch

• When there is an indoor unit which stopped with the indoor overflow alarm “0b”.

• Indoor unit with cooling operation command excepted by heating priority control

MODE

FAN ONLY

COOL

HEAT

FAN

AUTO

HIGH

MED

LOW

FIX

PREHEAT

DEFROST

OPERATION

STANDBY

FILTER

TEMP

UNIT

CHECK

DEMAND

C

F

LOUVER

MANUAL

TIMER CONT.OFF ON ADDRESS

AFTER H M

REMOTE CONTROLLER

MODE

TIMER ADJUST

CHECK FILTER

ON/OFF

(This display is for remote control with timer.)

CHECK switch





RESET switch


The remote controller resets initialized.


–

115





0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15


Decimal notation

<FILTER data>

(Example)

Filter signal is sent from No.1 and No.15 units under grouping operation

UNIT

CHECK

FILTER

UNIT

CHECK

FILTER

<CHECK data>

Unit No.

UNIT

CHECK

Check code detected at first Check code detected at last

(Example)

Room temp.sensor of No.1 is defective.

In No.15, first the indoor heat exchanger sensor has failed.

Next, interconnection wire (bus communication line) of indoor/outdoor is defective.

(Example)

There is no check data.

UNIT

CHECK

UNIT

CHECK CHECK

After 3 seconds

–

116



14-2-3. Central remote controller


When pushing the CHECK switch, the indoor unit No. (Network address No.) including the check data is displayed in the UNIT No. display section, and the check code is displayed in the set up temp. display section.

ON

MONITOR

SET

ZONE

ALL UNIT

ON

OFF

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

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

CENTER

LOCKED

MODE

FAN ONLY

COOL

DRY

HEAT

AUTO

AUX. TYPE

TIMER No.

FAN

AUTO

HIGH

MED.

LOW

FIX

LOUVER

MANUAL

STANDBY

FILTER

TEMP.

CHECK

1 C

2

MONITOR/SET ALL/ZONE ZONE UNIT ON CENTER/LOCKED MODE TEMP.

FILTER RESET CHECK

ZONE SET/ENTER SELECT OFF TIMER ON

FAN LOUVER

CHECK switch





RESET switch


The remote controller resets initialized.




0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15


Decimal notation

<Display on CHECK monitor>

Unit line No. (Network address No.)

MONITOR

SET

ZONE

ALL UNIT

ON

OFF

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

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

CENTER

LOCKED

MODE

FAN ONLY

COOL

DRY

HEAT

AUTO

AUX. TYPE

TIMER No.

FAN

AUTO

HIGH

MED.

LOW

FIX

TEMP.

1

2

LOUVER

MANUAL

STANDBY

FILTER

CHECK

C

Check code detected at first

Check code detected at last

<CHECK data>

(Example)

There is no check data.

UNIT

TEMP.

CHECK

(Example)

In No.1 unit, first the interconnection wire (bus communication line) of indoor/outdoor has failed.

Next, the room temp. sensor is defective.

For No.16 unit, the high pressure switch at the inverter unit side operates.

UNIT UNIT UNIT

TEMP.

CHECK

1

TEMP.

CHECK

2

TEMP.

CHECK

1

–

117



14-3. Check Code Table

Error mode detected by indoor unit (1)

Block display

[MODE]

[TIMER] lamp

5Hz flash

[MODE] lamp

5Hz flash

Check code

*

Operation of diagnostic function



Error in other cycles

•

Indoor heat exchanger temp

(TC) does not vary after start of cooling/heating operation.

Coming-off, disconnection or short of indoor temp sensor

(TA)


(TC)

Operation continues

Operation continues

Operation continues

Condition


The serial signal is not output from outdoor unit to indoor unit.

•

Miscabling of inter-unit cables

•

Defective serial sending circuit on outdoor P.C. board

•

Defective serial receiving circuit on outdoor P.C. board

•

Compressor case thermo operation

Operation continues


1. Outdoor unit does not completely operate.

•

Inter-unit cable check, correction of miscabling

•

Outdoor P.C. board check, P.C. board cables check

•

Compressor case thermo check


When outdoor sending serial LED

(Green) flashes, the receiving serial

LED (Orange) also flashes. : Indoor

P.C. board (Main P.C. board) check

When the receiving serial LED

(Orange) does not flash: Outdoor P.C.

board check

BUS communication circuit error

* BUS communication was interrupted over the specified time.

Operation continues

(According to remote controller of indoor unit)


1. Communication line check, miscabling check

Power supply check for central controller (Central control remote controller, etc.) and indoor unit

2. Communication check (XY terminal)

3. Indoor P.C. board check

4. Central controller check

(Communication P.C. board)

Network address miss-setting

•

Addresses of central controllers (Central control remote controller, etc.) are duplicated.

Operation continues


1. Check central control system network address setting. (SW02)

2. Indoor P.C. board check

3. Central controller check

(Communication P.C. board)

Error in 4-way valve system

•

Indoor heat exchanger temperature rise after start of cooling operation.

•

Indoor heat exchanger temperature fall after start of heating operation.

Operation continues


1. Check 4-way valve.

2. Check 2-way valve and non-return valve.

3. Check indoor heat exchanger sensor

(TC).

4. Check indoor P.C. board (Main P.C.

board).


1. Compressor case thermo operation

2. Coming-off of detection part of indoor heat exchanger sensor

3. Check indoor heat exchanger sensor

(TC).


board).


1. Check indoor temp sensor (TA).


board).


1. Check indoor temp sensor (TC).


board).


(TCJ)

Operation continues


1. Check indoor temp sensor (TCJ).


board).

*

: No display in the setting at shipment

–

118




Block display

[MODE] lamp

5Hz flash

Check code




Error in indoor fan system

Revolutions frequency error of fan

All stop

Condition



1. Check indoor fan motor connector circuit (CN210).

2. Check indoor fan.


board).


1. Check indoor P.C. board

(EEPROM and peripheral circuits)

(Main P.C. board).

Error in indoor unit or other positions

1. EEPROM access error

Operation continues

Outside error input

Detected by input voltage level from outside devices

Operation continues

Outside interlock input

Detected by input voltage level from outside devices

All stop



1. Check outside devices.


board).


Check code




Condition

Serial return signal is not sent from No. 1 indoor unit to remote controller.

•

Miscabling of inter-unit cable between remote controller and indoor unit

•

Miss-setting of indoor unit No.

(Group address)

ON/OFF



1. Indoor unit does not completely operate.

•

Check inter-unit cable.

•

Check indoor P.C. board. (Main/Sub P.C. boards)

•

Check remote controller.


•

Check setting of indoor unit No.

(SW01) (Sub P.C. board)

•

Check remote controller.

–

119



Error mode detected by outdoor unit

Check code




Inverter over-current protective circuit operates.

(For a short time)

All stop

Condition



1. Inverter immediately stops even if restarted.

•

Compressor rare short

2. Check IPDU.

•

Cabling error

Error on current detection circuit

•

Current value is high at AC side even while compressor stops.

•

Phase of power supply is missed.

Coming-off, disconnection or short of outdoor temp sensor

All stop

All stop


1. Compressor immediately stops even if restarted.

: Check IPDU.

2. Phase-missing operation of power supply

•

Check power voltage of R, S, T.


Compressor drive output error

•

Tin thermistor temp, Tin error

(IPDU heat sink temp. is high.)

Communication error between

IPDU

•

Connector coming-off between CDB and IPDU

All stop

All stop

Compressor does not rotate.

(Over-current protective circuit works when constant time passed after activation of compressor.)

All stop

Discharge temp error

•

Discharge temp over specified value was detected.

All stop


1. Check outdoor temp sensor (TE, TS).

2. Check CDB.


1. Check outdoor temp sensor (TD).

2. Check CDB.


1. Abnormal overload operation of refrigerating cycle

2. Loosening of screws and contact error of IPDU and heat sink

3. Cooling error of heat sink

4. Check cabling of CDB and IPDU.



1. Compressor error (Compressor lock, etc.)

: Replace compressor.

2. Cabling trouble of compressor (Phase missing)

1. Check refrigerating cycle. (Gas leak)

2. Error of electron control valve

3. Check pipe sensor (TD).


1. Check power voltage. (AC200V±20V)


3. Check current detection circuit at AC side.

Compressor breakdown

•

Operation frequency lowered and stops though operation had started.

All stop

High-voltage protection error by TE sensor

•

TE temp over specified value was detected.

All stop

DC outdoor fan motor error

•

IDC operation or lock was detected by DC outdoor fan driving.

All stop

Error on IPDU position detection circuit


All stop

Operation continues




2. Check outdoor temp sensor (TE).

1. Position detection error

2. Over-current protection circuit operation of outdoor fan drive unit

•

Check CDB.

•

Refer to Judgment of outdoor fan.


1. Position detection circuit operates even if driving by removing 3P connector of compressor.

•

Replace IPDU.


1. Check outdoor temp sensor (TO).

2. Check P.C. board.

–

120



14-4. Troubleshooting for Each Check Code

[1A error]

Are connections of CN301 and

CN300 of CDB correct?

YES

Does the fan rotate without trouble when handling the fan with hands under condition of removing CN301 and CN300 from CDB?

YES

NO

The status that the resistance values between leads below are 50 to 80 for 40W motor (ICF-140-43) and 25 to 55 for 60W motor (ICF-140-63-1) is normal.

NO of motor winding of connector (CN301)

YES

The status that there is

5k to 20k resistance values between of motor position detection of connector

(CN300, CN302) is normal.

YES

NO

CN301

CN300

•

For RAV-SM560AT-E, CN300 changes to

CN301, and CN301 to CN300, respectively.

Normal fan motor Defective fan motor

(CDB error)

NOTE :

However, GND circuit error inside of the motor is rarely detected even if the above check is carried out.

When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor.

Objective P.C. board

Fan motor winding


RAV-SM560AT-E

Control P.C. board

CN300

CN301

RAV-SM800AT-E

CDB P.C. board

CN301

CN300

–

121



[04 error]

NO

Does outdoor unit operate?

YES

Are 1, 2, 3 inter-unit cables normal?

YES

NO

Correct inter-unit cable.

Are connections of connectors normal?

YES

NO


Is DC310 to 340V applied between terminals of electrolytic capacitor of IPDU main circuit?

YES

* For RAV-SM560AT-E, check case thermo.

NO

Replace IPDU.


Is DC310 to 340V power supplied to CDB?

(CN03)

YES

NO

Replace IPDU.

NO

Does LED (D05) (Orange) on indoor main P.C. board flash?

YES

Is case thermo

(CN500) connected?

YES

NO


Does case thermo operate?

YES

NO

Check CDB.

Defect Replace


Check CDB.

Defect Replace


Check main indoor main P.C. board

(MCC-1370A).

Defect Replace

Check/Correct charged refrigerant amount.


–

122



[08 error]

Check and replace

2-way valve, check valve, or electron expansion valve.

Is operation of

4-way valve normal?

YES

NO

NO

Is flow of refrigerant by

2-way valve, check valve, or electron expansion valve normal?

YES

Is 200V applied to

4-way valve coil terminal in heating operation?

NO

YES

Check 4-way valve.

Is circuit cable normal?

YES

NO

Check and correct circuit.

NO

Are characteristics of TC sensor resistance value normal?


YES

Replace TC sensor.

Check indoor main P.C. board

(MCC-1370A) and sub P.C. board (MCC-1370B).

Defect Replace



YES

NO


Defect Replace


•

In cooling operation, if high pressure is abnormally raised, [08 error] may be displayed. In this case, remove cause of pressure up and then check again referring to the item [21 error].

[0C error]

Is connection of TA sensor connector

(Indoor main P.C. board CN04) normal?

YES

NO


TA sensor resistance value normal?

YES

NO



(MCC-1370A).

Defect Replace


Replace TA sensor.

–

123



[0d error]

Is connection of TC sensor connector


YES

NO


TC sensor resistance value normal?

YES

NO



(MCC-1370A).

Defect Replace


Replace TC sensor.

[0F error]

Is connection of TCJ sensor connector


YES

NO


TCJ sensor resistance value normal?

YES

NO



(MCC-1370A).

Defect Replace


Replace TCJ sensor.

–

124



[99 error]

Is inter-unit cable of

A, B and C normal?

YES

NO

Is there no disconnection or contact error of connector?

NO

YES

Is individual (1 : 1) operation?

NO

YES

NO

Is unit set to No.1?

YES

NO

Are not No.1 unit duplicated?

YES

NO

Does indoor unit operate?

YES




Does LED (Green) on indoor main P.C. board flash?

(D13)

NO

YES

Set the unit to No.1.

Avoid duplication of unit No.1 setting.


Defect Replace

Check indoor main P.C. board

(MCC-1370A).

Defect Replace

–

125



[11 error]

Turn off the breaker once.

Turn on the breaker after approx. 10 seconds.

Does fan stop when operation stopped?

YES

NO

Is DC1V or more voltage applied between 5 + and 3

–

of the motor connector (CN210)?

YES

Start the operation with cooling mode [L (Low)].

NO

Does the fan rotate?

YES


–


YES

(Connection status of motor)


–


YES

Change the cooling mode to [H (High)].

NO

NO

Stop the operation and turn off the breaker.

After removing motor connector, turn on the breaker again and then stop the operation from remote controller.

NO

Is fan speed raised?

YES

Is DC15V voltage applied between 4 + and 3

–


YES


–

of the motor connector (CN210) when changing the operation mode (except HEAT)?

(Check within approx. 15 seconds after operation has started.)

NO

YES

NO

Stop the operation and disconnect the receptacle. After removing motor connector, connect receptacle again and then stop the operation from remote controller.

NO

Normal fan motor

NO


–

of the motor connector (CN210) when changing the operation mode (except HEAT)?

(Check within approx. 15 seconds after operation has started.)

YES

NO

Does the cross flow fan rotate normally when handled with hands?

YES

Does 0 to 5V voltage

(revolutions return signal) generate between 6 + and 3

–

of the motor connector (CN210) when rotating the cross flow fan with hands under condition of operation-stop?

YES

Repair bering of the cross flow fan.

NO

–

126



Replace indoor main P.C. board

(MCC-1370A).


(MCC-1370A).



(MCC-1370A).



[11 error]

Indoor fan starts rotating by inserting receptacle.

[Check output voltage (DC) of P.C. board fan motor.]

Measure the voltages of the motor connector

CN210 Pin 3 (GND (minus): Black) and Pin 5 (V line (plus): Yellow) under condition that indoor fan rotates.

DC1.0V or less DC1.0V or more

Defective indoor main P.C. board

(MCC-1370A)

Defective indoor fan motor

DC

CN210

Yellow

Black

P.C. board

6 (Blue)

5 (Yellow)

4 (White)

3 (Black)

2 –

1 (Red)

[12 error]

Is there no turbulence of power supply?

YES

Check indoor main P.C. board (MCC-1370A).

Defect Replace

NO

Check power voltage. Improve line.

Check and eliminate noise, etc.



[14 error]


YES

NO

Improve the power supply line.

YES

Are connections of cabling/connector normal?

YES

NO

* For RAV-SM560AT-E, check RY01 on the control P.C. board.



Check and correct reactor connection.

Does RY01 relay of

IPDU operate?

NO

YES

Is not

“

14

”

errors output when an operation is performed by removing 3P connector of compressor?

YES

* Single-phase type is not provided to RAV-SM560AT-E.

NO

Replace IPDU.

Is not AC fuse fused?

NO


Replace IPDU.



YES

NO

Check IPDU.

Defect Replace

Check rare short of compressor trouble.

Defect Replace

[16 error]


YES

NO

NO


YES

YES

Is not earthed?

NO

Is not winding shorted?

(Is resistance between windings 0.6 to 1.2 ?)

NO

YES

YES

Is not winding opened?

NO

Check and correct circuit cabling such as cabling to compressor.




Check IPDU P.C. board.

Defect Replace

–

128



[18 error]

Are connections of

TE/TS sensor connectors of

CDB CN604/CN605 normal?

YES

NO


Are characteristics of TE/TS sensor resistance values normal?

YES

* (For RAV-SM560AT-E, CN600 TE sensor and CN603 TS sensor)

NO

Replace TE and TS sensors.


Check CDB.

Defect Replace

* For RAV-SM560AT-E, replace the control P.C. board

[19 error]

Is connection of TD sensor connector of CDB CN600 normal?

YES

Are characteristics of TD sensor resistance value normal?

YES

NO


* For RAV-SM560AT-E, CN601 on control P.C. board

NO

Replace TD sensor.

Check control P.C. board.

Defect Replace


[1C error] * Except RAV-SM560AT-E

Are connections of

CDB CN800 and CDB IPDU CN06 connectors normal?

YES

NO

Was the error just after power ON determined?

NO

YES

Are cabling/connector normal?

YES

NO


Check cabling between IPDU and CDB and connector.


Defect Replace

Is there no abnormal overload?

NO

YES

NO

Is IPDU P.C. board come to closely contact with heat sink?

YES

Improve and eliminate the cause.

Correct mounting.


Defect Replace

–

129



[1d error]

NO


YES


YES

NO

NO


YES

Improve power line.

Check and correct circuit cabling such as cabling to compressor

(phase missing) and connector.

Is there no slackened refrigerant?

YES

NO

Does electron expansion valve normally operate?

YES

NO

Compressor lock Replace

Check TE and TS sensors. Replace

Check electron expansion valve. Replace

Check IPDU and CDB.

Defect Replace


Defect Replace

[1E error]

Is protective control such as discharge temprelease control normal?

YES

NO


YES

NO

Correct the cabling and connection of connector.

Check parts. Defect Replace

Is charged refrigerant amount normal?

YES

NO

YES


NO

NO


TD sensor resistance value normal?

YES


Check and correct the charged refrigerant amount.

Improve and delete the cause

Replace TD sensor.

Check CDB.

Defect Replace

[1F error]


YES


NO

Is the circuit detected by current sensor normal?

YES


NO

YES

NO

Improve power line.

Improve and delete the cause.


Check IPDU.

Defect Replace


–

130



[21 error] [ ] LCD flash

Is high-voltage protective operation by

TE sensor normal?

YES

NO

Is connection of cabling connector normal?

YES

NO

Correct connection of cabling connector.

Check TE sensor.

Defect Replace

Does cooling outdoor fan normally operate?

YES

NO

Is connection of connector normal?

YES

NO


NO

Is fan motor normal?

YES

Replace fan motor.

NO

Check TE, TC, TS sensors.

Does electron control valve normally operate?

YES

Do not TD and TO sensors come off the detection part?

NO

YES

Replace electron expansion valve.

Correct coming-off.


TD, TO, TC sensor resistance values normal?

YES

NO

Replace TD, TO, and TC sensors.

* Refer to Characteristics-3 and 4.

Check charged refrigerant amount.

Check liquid/gas valves.

Check abnormal overload.

Check CDB.

Defect Replace


–

131



14-5. Simple Check Method for Main Parts

14-5-1. Indoor unit

No.

Part name Check procedure

1 Temperature sensor (Ta)

Heat exchanger sensor (Tc)

Heat exchanger sensor (Tcj)

Measure the resistance value with tester by removing the connector.

(Normal temperature)

Normal value

10 k

Ω

to 20 k

Ω

Refer to Characteristics table.

2 Louver motor

MP35EA12

Measure the resistance value of each winding coil with tester.

(Under normal temperature 25

°

C)

Brown

Red

Orange

Yellow

Pink

Blue

1

2

3

4

5

6

1

2

3

4

5

6

Position

Between 1 and 2

Between 1 and 3

Between 1 and 4

Between 1 and 5

Resistance value

130 ± 40

Ω

3 Indoor fan motor

(ICF-340-30-1) lMeasure the resistance value of each winding coil with tester.

lFor P.C. board side, proceed to [11 error] of

“

Troubleshooting procedure for each check code

”

.

Position

Between

(Black) and

(Red)

Between

(Black) and

(White)

Between

(Black) and

(Yellow)

Between

(Black) and

(Blue)

Resistance value

∞

(M

Ω

)

27 to 47 k

Ω

140 to 280 k

Ω

∞

(M

Ω

)

Red 1 1

Black 3

White

Yellow

4

5

Blue 6

3

4

5

6

1

3

4

5

6

1

2

3

4

5

6

–

132



Relational graph of temperature sensor resistance value and temperature

Resistance

(k )

10

20

0

10 20

40

TA sensor


30

Resistance

(k )

20

30 40

Temperature [ C]

50

TC, TCJ sensor


10

0

–

10 0 10 20 30 40 50 60 70

Temperature [ C]

20

TE, TO, TS sensor

200


Resistance

(k )

(10 C or lower)

100

Resistance

(k )

(10 C or higher)

10

0

200

-10 0 10 20 30 40

Temperature [ C]

50 60 70

0

TD sensor


Resistance

(k )

(50 C or lower)

100

20

Resistance

(k )

(50 C or higher)

10

0 0

50

Temperature [ C]

100

–

133


100

50


Resistance

(K )

200

150


TH sensor

Resistance

(K )

(10 C or higher)

20

15

10

5

–

30

–

20

–

10 0 10 20 30 40

Temperature [

º

C]

50 60 70 80 90 100

–

134



15. DETACHMENTS


RAV-SM560UT-E, SM800UT-E

No.

Q

Part name

Suction grille

Procedure

REQUIREMENT

Never forget to put on the gloves at disassembling work, otherwise an injury will be caused.

1. Detachment

1) Stop operation of the air conditioner, and then turn off switch of the breaker.

2) Hang down the suction grille while sliding two knobs of the suction grille inward.

3) Remove a strap connecting the panel and the suction grille to remove the suction grille.

2. Attachment

1) Hang the suction grille to the panel.

2) Attach the strap of the suction grille to the panel as before.

3) Close the suction grille, slide the knobs outward, and then fix it.

Remarks

Knob of suction grille

Remove the strap.

R

Electric parts cover

1. Detachment

1) Perform work of item 1. of

Q

.

2) Remove screws fixing the electric parts cover. (Ø4 x 10, 3 pcs.)

3) Remove the electric parts cover from the tentative hook, and then open the cover.

2. Attachment

1) Close the electric parts cover and hang the cover hole to the tentative hook.

2) Tighten the fixing screws.

(Ø4 x 10, 3 pcs.)

3 screws

Tentative hook



Remarks No.

S

Part name

Adjust corner cap

Procedure

1. Detachment

1) Perform work of item 1. of

Q

.

2) Remove screws at 4 corners of the suction port. (Ø4 x 10, 4 pcs.)

3) Push the knob outward and remove the adjust corner cap by sliding it.

2. Attachment

1) Mount the adjust corner cap by sliding it inward.

2) Tighten screws at 4 corners of the suction port. (Ø4 x 10, 4 pcs.)

Screw

Push outward

T

Ceiling panel

1. Detachment

1) Perform works of items 1 of and 1 of

S

.

Q

, 1 of

R

2) Remove the flap connector (CN33,

White, 5P) connected to the control P.C.

board, and then remove the lead wire from the clamp.

NOTE :

Remove the connector by releasing locking of the housing.

3) Remove screws fixing the ceiling panel.

(M5, 4 pcs.)

4) Push the tentative hook outward to remove the ceiling panel.

2. Attachment

1) Hang the tentative hook of the main body drain pan to the tentative hook of the ceiling panel.

NOTE :

A panel has directional property, so mount a panel with attention to the marks.

2) Tighten fixing screws. (M5, 4 pcs.)

3) Connect flap connector of the ceiling panel to connector (CN33, White, 5P) on the control P.C. board.

Remove the flap connector

Fixing screw

Push the tentative hook outward



Remarks No.

U

Part name

Control P.C.

board

Procedure

1. Detachment

1) Perform works of items 1 of

Q

and 1 of

R

.

2) Remove connectors which are connected from the control P.C. board to other parts.

CN33 : Flap motor (5P: White)

CN34 : Float switch (3P: Red)

CN41 : Terminal block of remote controller (3P: Blue)

CN68 : Drain pump (3P: Blue)

CN67 : Terminal block of power supply

(5P: Black)

CN101 : TC sensor (2P: Black)

CN102 : TCJ sensor (2P: Red)

CN104 : Room temperature sensor

(2P: Yellow)

CN333 : Power supply of fan motor

(5P: White)

CN334 : Position detection of fan motor

(5P: White)

NOTE :


3) Unlock locking of the card-edge spacer at 6 positions to remove the control P.C.

board.

2. Attachment

1) Fix the control P.C. board to the cardedge spacer at 6 positions.

2) Connect the connectors removed in item 1 to the original positions.

Card-edge spacer


No.

V


Part name

Fan motor

Procedure

1. Detachment


Q

and 1 of

R

.

2) Remove clamps of the lead wires connected to the following connectors of the control P.C. board.

CN33 : Flap motor (5P: White)






(5P: White)


(5P: White)

NOTE :


3) Remove screws fixing earth lead wire in the electric parts box. (Ø4 x 6, 2 pcs.)

4) Remove indoor/outdoor inter-unit cable and remote controller cable of the terminal block.

5) Remove screws fixing the electric parts box. (Ø4 x 10, 5 pcs.)

6) Remove screws fixing the bell mouth.

(Ø4 x 10, 6 pcs.)

7) Remove nuts fixing the turbo fan.

(M6, 1 pc.)

8) Remove screws fixing holder of the motor lead wires to remove the motor lead wires from the clamp. (Ø4 x 8, 3 pcs.)

9) Remove nuts fixing the fan motor to remove it.

2. Attachment

1) Fix the parts, fan motor, holder of the motor lead, turbo fan, bell mouth, and electric parts box successively to their original positions.

NOTE 1 :

When fixing the turbo fan, be sure to match the fan boss with D-cut of the motor shaft.

NOTE 2 :

Fix the turbo fan with torque wrench

5.9 ± 0.6Nm.

2) Connect connectors, earth lead wire, indoor/outdoor inter-unit cable, and remote controller cable which have been disconnected in the above item 1 as before.

Remarks

Screws fixing electric parts box

Screws fixing earth lead wires

Bell mouth

Fan motor

Turbo fan

Motor lead holder



Remarks No.

W

Part name

Drain pan

Procedure

1. Detachment


Q

, 1 of

R

, 1 of

S

and 1 of

T

.

2) Remove clamps of the lead wires connected to the following connectors of the control P.C. board.






(5P: White)


(5P: White)

NOTE :


3) Remove screws fixing earth lead wire in the electric parts box. (Ø4 x 6, 2 pcs.)

4) Remove indoor/outdoor inter-unit cable and remote controller cable of the terminal block.

5) Remove screws fixing the electric parts box. (Ø4 x 10, 5 pcs.)

6) Remove screws fixing the bell mouth.

(Ø4 x 10, 6 pcs.)

7) Remove the drain cap, and drain water accumulated in the drain pan.

NOTE 1 :

When removing the drain cap, be sure to prepare a bucket to catch the drained water.

NOTE 2 :

Thermal insulator is adhered to the drain cap. Be careful not to peel off the insulator.

If the insulator has been peeled, adhere it with double-face tape, etc. as before.

8) Remove screws fixing the drain pan.

(Ø4 x 8, 4 pcs.)

2. Attachment

1) Fix the parts, drain cap, drain pan, bell mouth, and electric parts box successively to their original positions.


Screws fixing earth lead wires

Drain cap

Screws fixing drain pan


No.

X


Part name

Drain pump assembly

Procedure

1. Detachment


Q

, 1 of

R

,

1 of

S

, 1 of

T

and 1 of

W

.

2) Picking the hose band, slide it from pump connecting part to remove the drain hose.

3) Remove screw fixing the drain pump assembly, slide hooking claws of the drain pump assembly and the main body (1 position), and then remove the assembly. (Ø4 x 8, 3 pcs.)

3. Attachment

1) Fix the drain pump assembly as before.

NOTE :

The drain pump is fixed with a hook and 3 screws. In screwing, be sure that screws do not to run on hooking claw at the main body side.

2) Attach the drain hose and hose band as before.

NOTE :

Insert the drain hose up to the end of pump connecting part, and bind the white mark position of the hose with band.

Remarks

Slide to hose side.

Hose band

Pump connecting part

Hooking claw

Fixing screw



Remarks No.

Y

Part name

Heat exchanger

Procedure

1. Detachment

1) Recover refrigerant gas.

2) Remove refrigerant pipe at the indoor unit side.


Q

, 1 of

R

,

1 of

S

, 1 of

T

and 1 of

W

.

4) Remove screws fixing the pipe cover.

(Ø4 x 8, 2 pcs.)

5) Remove the heat exchanger by removing fixing band and fixing screws while holding the heat exchanger.

(Ø4 x 8, 3 pcs.)

2. Attachment

1) Fix the parts, heat exchanger, fixing band, pipe cover, drain cap, drain pan, bell mouth, and electric parts box successively to their original positions.


3) Connect the refrigerant pipe as before, and then perform vacuuming.

Fixing screws

Fixing band

Fixing screws



15-2. Replacement of Distributor Assembly

RAV-SM560UT-E

1. Cutting of Capillary Tube

A capillary tube ( 023 : Inner diameter 2mm, Length 1000mm) is brazed to a distributor assembly. Cut and divide the tube to each length as shown below.

Ref No.

023

No. of capillary tubes

4

Cutting

200 mm : 2 pcs.

400 mm : 2 pcs.

[Cutting]

Plane circumference of the capillary tube with triangle file, etc., and then break off it.

2. Attachment of joint pipe

Insert the attached joint pipe into the end of the capillary tube up to 15mm, and braze it.

Form the capillary tube as same as that in the distributor assembly before replacement.

NOTE) Break off the capillary tube so

that inner diameter is not deformed

3. Brazing to indoor heat exchanger

Attach the capillary tube processed in items 1 and 2 to the end of the pipe with brazing as shown below.

023

–

142



RAV-SM800UT-E

1. Cutting of Capillary Tube

A capillary tube ( 025 026 : Inner diameter 2mm, Length 1000mm) is brazed to a distributor assembly.

Cut and divide the tube to each length as shown below.

Ref No.

025

026

No. of capillary tubes

7

10

100 mm : 1 pc.

300 mm : 1 pc.

400 mm : 1 pc.

100 mm : 2 pcs.

150 mm : 1 pc.

500 mm : 4 pcs.

Cutting

600 mm : 2 pcs.

700 mm : 1 pc.

800 mm : 1 pc.

600 mm : 2 pcs.

900 mm : 1 pc.

[Cutting]

Plane circumference of the capillary tube with triangle file, etc., and then break off it.

2. Attachment of joint pipe

Insert the attached joint pipe into the end of the capillary tube up to 15mm, and braze it.

Form the capillary tube as same as that in the distributor assembly before replacement.

NOTE) Break off the capillary tube so

that inner diameter is not deformed

3. Brazing to indoor heat exchanger

Attach the capillary tube processed in items 1 and 2 to the end of the pipe with brazing as shown below.

025 026

–

143



15-3. Replacement of Main Parts <Built-in type>

RAV-SM560BT-E, SM800BT-E

Be sure to turn off the power supply before disassembling work.

No.

1

Item Procedure

Electric parts box 1) Remove the electric parts box.

(Supplement: Refer to How to remove the electric parts box.)

In this time, remove connectors of TA sensor, TC sensor, and TCJ sensor, if necessary.)

2 Fan 1) Remove connector of the fan motor.

2) Remove screws fixing the fan. (Screws at 4 positions)

3) Take off jointed portion of fan and cabinet, and then put down the fan.

4) Loosen set screw of the Silocco fan.

5) Remove set screw of the fan case.

6) Remove the fan motor mounting metal, and then replace the fan motor.

3 Drain pan 1) Take down the indoor unit and then treat the drain pan on the floor.

2) Remove screws fixing the drain pan (12 positions) and then replace the drain pan.

Electric parts fixing screw

Fan fixing screw

Fan

Electric parts box

Drain pan

4 Heat exchanger 1) Take down the indoor unit and then treat the heat exchanger on the floor.

2) Remove screws fixing the drain pan (12 positions) and then remove the drain pan.

3) Remove the shielding plate. (Screws at

4 positions)

4) Remove screws (at 4 positions) fixing the heat exchanger, and then replace the heat exchanger.

5 TC sensor

(Sensor side)

1) Remove the check port cover.

2) Remove the shielding plate.

(At 4 positions)

3) Pull out the sensors inserted into pipe of the heat exchanger.

Shielding plate

Heat exchanger

Shielding plate

Check port cover

–

144



AID-P710BH, P800BH, P1120BH

Be sure to turn off the power supply before disassembling work.

No.

1

Item

Electric parts box

Procedure

1) Remove the electric parts box.

(Supplement: Refer to How to remove the electric parts box.)

In this time, remove connectors of TA sensor, TC sensor, and TCJ sensor, if necessary.)

2

3

Fan

Drain pan

Electric parts fixing screw

Electric parts box

1) Remove connector of the fan motor.

2) Using a hexagonal wrench, loosen coupling fixing screws at 2 positions, and then slide the fan motor to reverse side.

3) Remove set screws (6 positions) of the fan case (left).

4) Remove fan motor mounting metal

(screws at 2 positions) while holding the fan motor with hands.

5) Remove capacitor fixing screw

(1 position).

6) Take down the fan motor and the fan case (left).

7) Loosen set screw of the Silocco fan.

8) Replace the fan motor.

1) Take down the indoor unit and then treat the drain pan on the floor.

2) Remove screws fixing the drain pan and then replace the drain pan.

Fan case (left)

Capacitor

Drain pan

Fan motor

Silocco fan (right)

4 Heat exchanger

5 TC sensor

(Sensor side)

1) Take down the indoor unit and then treat the heat exchanger on the floor.

2) Remove screws fixing the drain pan and then remove the drain pan.

3) Remove the shielding plate. (Screws at

4 positions)

4) Remove screws (at 5 positions) fixing the heat exchanger, and then replace the heat exchanger.

1) Remove the check port cover.

2) Remove the shielding plate.

(At 4 positions)

3) Pull out the sensors inserted into pipe of the heat exchanger.

Shielding plate

Heat exchanger

Shielding plate

Check port cover



[SUPPLEMENT] How to remove the electric parts box

Electric parts box

The electric parts box is fixed to the indoor unit with claws at the rear side.

Lift up it once and pull toward you. Then claws come off.

Hook

F7-43-4

Procedure 2

Remove these two screws to remove the electric parts box.

Electric cable

Remote controller cable

Electric parts box cover

A hole at the ceiling surface side is fixed to upper part of the electric parts box with claws.

Lift up it once and pull toward you.

Then claws come off.

Procedure 1

Remove these two screws to remove the electric parts box cover.

–

146



15-4. Replacements of Main Parts <Hi-Wall type>

15-4-1. Indoor Unit

No.

Part name

Front panel

Procedure

1) Stop operation of the air conditioner, and turn off the power supply.

2) Push

“

PUSH

”

part at the lower side of the front panel, and then take off claws of the front panel from the installation board.

3) Open the suction grille and take off the front panel fixing screws (4 pcs.).

4) After turning the side grille as shown in the right figure, perform the following works.

5) Push the electric parts box with right thumb while pulling both sides of the front panel toward you.

<Attachment of front panel>

1) Turn the side grille as shown in the right figure.

2) Push 3 positions at center of the discharge port and 2 positions at lower center of the discharge port, and then hook the hooking claws (3 positions) at upper surface of the front panel to the rear board.

3) Tighten 4 screws.

•

Insufficient hooking or pushing may cause falling of dewdrop or discomforting noise.

When removing the front panel without turning the side grille, the front panel may be broken.

Remarks

Installation board

Front panel

Side grille

Upper hooking claws

(3 positions)

Fixing screws

Electric parts box assembly

1) Perform work of item 1 of

.

2) Remove the drain guide.

3) Take off screws for earth lead wire attached to the end plate of the heat exchanger.

4) Disconnect connectors for fan motor and louver motor from the microcomputer assembly.

5) Remove the display unit at the center of the set from the main body.

Screw

Drain guide

Fixing screws

–

147



No.

Part name

Electric parts box assembly

Side grille

Procedure

6) Take off fixing screw (1 position) of the electric parts base, and then pull out the electric parts base toward you.

7) Pull out Tc sensor and Tcj sensor from sensor holder of the heat exchanger. After replacement of the parts, incorporate two sensors without mistake as shown in the right figure.

(Tube is attached to Tcj sensor.)

8) After replacement of the parts, set a trap so that water does not enter in the electric parts assembly. (Incomplete process for lead wires may cause water leak.)

1) Remove shaft of the side grille from the air conditioner body. (First remove the left shaft and then other shafts while sliding the side grille left and right.)

Remarks

Tjc sensor position

(Tube is attached to Tcj sensor.)

TC sensor position

Heat exchanger 1) Perform work of item

.

2) Remove pipe holder at rear side of the main body.

3) Take off fixing screws (2 pcs.) at the left side of the end plate of the heat exchanger.

Pipe holder

Fixing screw

4) Take off two fixing screws of the heat exchanger holder (right), and then remove the heat exchanger holder (right).

5) Take off fixing screw at lower right side of the heat exchanger.

6) Remove the heat exchanger from the rear main body by lifting it upward.

Fixing screw

–

148



Remarks No.

Part name

Fan motor

Procedure

1) Perform work of item

.

2) Perform work of item

.

3) Loosen set screw of the cross flow fan from the discharge port.

4) Remove the bushing (right).

Bushing (right)

Set screw

Push this part upward

Cross fan

Cross flow fan

Fixing screws

5) Take off two fixing screws of the motor band (right).

6) Pull out the motor band (right) and the fan motor outward.

* Caution at reassembly

•

Determine position of the fan motor so that connector of the fan motor enters in the positioning rib of the motor band (right).

1) Perform works of items

and

.

2) Loosen set screw of the cross flow fan from the discharge port.

3) Take off two fixing screws at the left side of the end plate of the heat exchanger, and then take off two fixing screws of the bearing base.

Fixing screw

4) Lift up slightly the left side of the heat exchanger to remove the bearing base.

5) Lift up the left side of the heat exchanger toward you to remove the cross flow fan.

* Caution at reassembly

•

Mount the cross flow fan so that the left end of the first joint from right of the drift fan matches with the left end of the positioning rib of the rear main body.

Positioning rib

–

149



15-4.2. Replacement Procedure of Service Main P.C. Board

Replacement Procedure of Indoor Control P.C. Board

(AIK-PXXXH series, SIK-PXXXH series)

For this indoor control P.C. board [AIK/SIK-P SERVICE] corresponding to the common P.C. boards, follow to this replacement procedure when replacing P.C. board.

(When using SIK-PXXXH series, P.C. board name, parts layout, etc. of the presently mounted P.C. board differ from those of this service P.C. board. However there is no problem in the functions.)

Components

•

Service P.C. board (MCC-1370A [AIK/SIK-P SERVICE] : 1 unit

•

Replacement Procedure of Indoor Control P.C. Board : These sheets

•

Replacement Record of remote controller/indoor control P.C. board/outdoor control P.C. board : 1 sheet

Replacement Procedure

1

Remove the presently mounted P.C. board from the electric parts box.

(Be sure to send back the replaced P.C. board with Replacement Record attached separately.)

2

Set Dip SW and jumpers of the service P.C. board according to the following exchange correspondence table.

Part

Model <Reference>

Service P.C. board

Initial setup at shipment

AIK-P400H

AIK-P450H

AIK-P500H

AIK-P560H

AIK-PXXXH series

AIK-P630H

J15

J16

J17

J19

J22

J24

J01

J07

J09

J11

J12

J14

J25

J36

J50

J53

J54

J55

SW03

1

2

ON

OFF

〇

〇

×

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

〇

×

〇

Match setup with one of former P.C. board.

As it is : 〇

Match setup with one of former P.C. board.

As it is : 〇

As it is :

〇

As it is : 〇

As it is : 〇

As it is :

×

As it is :

〇

Cut : ×

As it is :

〇

As it is :

×

As it is : 〇

As it is : Setup of jumper of the service P.C. board is not changed.

As it is :

〇

Cut : ×

As it is : 〇

3

Mount P.C. board according to [Mounting].

–

150


AIK-P710H

AIK-P800H

Cut :

×

As it is : 〇

As it is : 〇


[Mounting]

In case of AIK-PXXXH series

1. As same as P.C. board before replacement, attach a cable (Black) which is screwed to the electric parts box to CN240 without using a cable (Black) attached previously to CN240 of the service P.C. board.

Service P.C. board

CN204

Cable

(Remove a cable attached previously to CN240 of the service P.C. board.)

2. Attach other cables as same as P.C. board before replacement.

<(Reference) Explanation about functions of switches/jumpers>

•

The following table shows the functions of the main switches and jumpers. Use as reference in miss-setup.

Part name

SW03

1

2

Function

TA shift: Thermo-OFF point can be shifted in heating operation.

Bit 1

OFF

OFF

ON

ON

Bit 2

OFF

ON

OFF

ON

+ 6K

+ 4K

Shift Q’ty

+ 2K (Setup at shipment)

± 0K

J09

J11

J12

Selection of hot start control temperature :

The starting temperature of the fan can be raised in heating operation.

J09

Provided

None

Normal (Setup at shipment)

Setup

Fan starting temp up (Approx. +4K)

Setup of filter timer

J11

Provided

None

Provided

None

J12

Provided

Provided

None

None

Setup

240 hours (Setup at shipment)

2500 hours

5000 hours

Without filter timer

–

151



<Parts layout of service P.C. board>

CN213 display part

CN04 temp. sensor

CN05 heat exchanger

CN240

Label

CN231

CN230

CN223

Jumper

P.C. board (MCC-1370A)

SW03: TA shift

Jumper

–

152




RAV-SM560AT-E

No.

Part name

Common procedure

Procedure

CAUTION

Never forget to put on the gloves at working time, otherwise an injury will be caused by the parts, etc.

1. Detachment

1) Stop operation of the air conditioner, and turn off the main switch of the breaker for air conditioner.

2) Remove the valve cover.

(ST1T

Ø

4 x 10L, 1 pc.)

•

After removing screw, remove the valve cover pulling it downward.

3) Remove wiring cover (ST1T

Ø

4 x 10L, 2 pcs.), and then remove connecting cable.

4) Remove the upper cabinet.

(ST1T

Ø

4 x 10L, 2 pcs.)

•

After taking off screws, remove the upper cabinet pulling it upward.

2. Attachment

1) Attach the waterproof cover.

CAUTION

Be sure to attach a waterproof cover.

If it is not attached, there is a possibility that water enters inside of the outdoor unit.

2) Attach the upper cabinet.

(ST1T

Ø

4 x 10L, 2 pcs.)

•

Hook the rear side of the upper cabinet to claw of the rear cabinet, and then put it on the front cabinet.

3) Perform cabling of connecting cables, and fix with cord clamp.

(ST1T

Ø

4 x 10L 3 pcs.)

4) Attach the wiring cover.

(ST1T

Ø

4 x 10L, 2 pcs.)

5) Attach the valve cover.

(ST1T

Ø

4 x 10L, 1 pc.)

•

Insert the upper part of the upper cabinet, set hooking claw of the valve cover to the slit (at three positions) of the main body, and then attach it pushing upward.

Remarks

Valve cover

Upper cabinet

Wiring cover

Water-proof cover

Cord clamp

Rear cabinet

Claw

–

153



No.

Part name

Front cabinet

Procedure

1. Detachment


.

2) Remove screws (ST1T

Ø

4 x 10L, 2 pcs.) of the front cabinet and the inverter cover.

3) Take off screws of the front cabinet and the bottom plate. (ST1T

Ø

4 x 10L 3 pcs.)

4) Take off screws of the front cabinet and the motor support.

(ST1T

Ø

4 x 10L, 2 pcs.)

•

The left side of the front side if made to insert to the rear cabinet, so remove it pulling upward.

Remarks

Motor support

Front cabinet

For single-phase type models, also take off this screw

Front cabinet (Left side)

3. Attachment

1) Insert hook at the left side of the front side into the rear cabinet.

2) Hook the lower part at the right side of the front to concavity of the bottom plate.

Insert the hook of the rear cabinet into the slit of the front cabinet.

3) Attach the removed screws to the original positions.

Slit Claw

Slit

Hook

Front cabinet

Cord clamp

Concavity at bottom plate

Lower slit

–

154


No.


Part name

Inverter assembly

Procedure

1. Detachment


.

2) Take off screws of the upper part of the front cabinet.

•

If removing the inverter cover under this condition, P.C. board can be checked.

•

If there is no space in the upper part of the upper cabinet, perform work of

.

CAUTION

Be careful to check the inverter because high-voltage circuit is incorporated in it.

3) Perform discharging by connecting + ,

– polarities by discharging resistance

(approx. 100

Ω

, 40W) or plug of soldering iron to + ,

–

terminals of the C14

(printed as

“

CAUTION HIGH VOLTAGE

”

) electrolytic capacitor (500µF) of P.C.

board.

WARNING

The electrolytic capacitor may not normally discharge according to error contents and the voltage may remain. Therefore, be sure to discharge the capacitor.

WARNING

For discharging, never use a screwdriver and others for short-circuiting between + and

–

electrodes. As the electrolytic capacitor is one with a large capacity, it is very dangerous because a large electric spark will occur.

4) Take off screws (ST1T

Ø

4 x 10L, 2 pcs.) fixing the main body and the inverter box.

5) Remove various lead wires from the holder at upper part of the inverter box and wiring holder at right side of the terminal block.

6) Remove the lead wire from the bundled part at left side of the terminal block.

7) Pull the inverter box upward.

8) Disconnect connectors of various lead wires.

REQUIREMENT

As each connector has a lock mechanism, avoid to remove the connector by holding the lead wire, but by holding the connector.

Remarks

Screws

Front cabinet

Inverter cover

Cord clamp

Screws

Plug of soldering iron

Discharging position

(Discharging period

10 seconds or more)

Inverter assembly

Remove the connectors with locking function by pushing the part indicated by the arrow mark.

–

155



No.

Part name

Control P.C.

board assembly

Procedure

1) Disconnect lead wires and connectors connected from the control P.C. board assembly to other parts.

1. Lead wires

•

Connection with the power terminal block: 3 wires (Black, White, Orange)

•

Earth wire: 1 wire (Black)

2. Connectors

•

Connection with compressor:

Remove 3P connector.

•

Connection with reactor:

Remove the relay connectors from

P07, 08 (2P, White) and P12, 13 (2P,

Yellow)

CN300 : Outdoor fan (3P, White)

CN301 : Position detection (5P, White)

CN701 : 4-way valve (3P, Yellow)

CN600 : TE sensor (2P, White)

CN601 : TD sensor (3P, White)

CN603 : TS sensor (3P, White)

CN602 : TO sensor (3P, White)

CN500 : Case thermo. (2P, White)

CN703 : PMV (6P, White)

2) Remove the inverter box (Metal plate).

3) Remove the control board assembly from

P.C. board base. (Remove the heat sink and the control board assembly as they are screwed.)

NOTES:

1. CN300, CN301 and CN701, etc. at the control board assembly side are connectors with locking function. Therefore, remove the connector while pushing the part indicated by an arrow mark.

2. Remove 4 hooking claws of P.C. board base, and remove upward the heat sink with hands.

4) Take off 3 screws fixing the heat sink and main control board assembly side, and replace the board with a new one.

NOTE:

When mounting a new board, check that the board is correctly set in the groove of the base holder of P.C. board base. Attach the

P.C. board so that the heat sink comes securely contact with the metal sheet.

Heat sink

Remarks

Take off earth screws.

Power line

Inverter box

(Metal sheet)

Control P.C. board assembly

P.C. board base

Hooking claws

(4 positions)

Control P.C. board assembly

P.C. board base

Inverter box

(Metal sheet)

–

156



Remarks No.

Part name

Rear cabinet

Procedure


and

,

.

2) Take off fixed screws for the bottom plate.

(ST1T

Ø

4 x 10L, 3 pcs.)

3) Take off fixed screws for the heat exchanger. (ST1T

Ø

4 x 10L, 2 pcs.)

4) Take off fixed screw for the valve mounting plate. (ST1T

Ø

4 x 10L, 1 pc.)

Rear cabinet

Fan motor 1) Perform works of items 1 of

and

.

2) Take off the flange nut fixing the fan motor and the propeller.

•

Turning it clockwise, the flange nut can be loosened. (To tighten the flange nut, turn counterclockwise.)

3) Remove the propeller fan.

4) Disconnect the connector for fan motor from the inverter.

5) Take off the fixing screws (3 pcs.) holding by hands so that the fan motor does not fall.

NOTE:

Tighten the flange nut with torque 4.9Nm

(50kgf/cm).

Flange nut

Loosen the nut by turning clockwise

Propeller fan

Fan motor

–

157



No.

Part name

Compressor

Procedure


,

,

,

.

and

2) Discharge refrigerant gas.

3) Remove the partition plate.

(ST1T

Ø

4 x 10L, 2 pcs.)

4) Remove the noise-insulator.

5) Remove the terminal covers of the compressor, and disconnect lead wires of the compressor and the compressor thermo assembly from the terminal.

6) Remove pipes connected to the compressor with a burner.

CAUTION

Pay attention to that flame does not involve 4-way valve or PMV. (If doing so, a malfunction may be caused.)

Remarks

Partition plate

Compressor lead

Case thermo

7) Take off the fixing screws of the bottom plate and heat exchanger.

(ST1T

Ø

4 x 10L, 2 pcs.)

8) Take off the fixing screws of the valve clamping plate to the bottom plate.

9) Pull upward he refrigerating cycle.

10) Take off nut fixing the compressor to the bottom place.

CAUTION

When reconnecting the lead wires to the compressor terminals after replacement of the compressor, be sure to caulk the Faston terminal without loosening.

Remove

(Discharge pipe)

Heat exchanger

Remove

(Suction pipe)

Screw

Valve support board

Screws (2 pcs.)

Compressor bolt (3 pcs.)

Reactor 1) Perform works of item 1 of

and

.

2) First take off two screws (ST1T

Ø

4 x

10L) of the reactor fixed to the reactor support.

3) Remove the reactor support from the partition plate.

(ST1T

Ø

4 x 10L, 4 pcs.)

4) Take off two screws (ST1T

Ø

4 x 10L) directly attached to the partition plate.

Reactor

Partition plate

Reactor support board

–

158


No.


Part name

Pulse Modulating

Valve (PMV) coil

Procedure

1. Detachment


and

.

2) Release the coil from the concavity by turning it, and remove coil from the

PMV.

2. Attachment

1) Put the coil deep into the bottom position.

2) Fix the coil firmly by turning it to the concavity.

Remarks

PMV body

Positioning extrusion

Concavity

PMV coil

Fan guard

1. Detachment


, and

.

2) Remove the front cabinet, and put it down so that fan guard side directs downward.

CAUTION

Perform works on a corrugated cardboard, cloth, etc. to prevent flaw on the product.

3) Remove the hooking claws by pushing with minus screwdriver along with the arrow mark in the right figure, and remove the fan guard.

2. Attachment

1) Insert claws of the fan guard in the hole of the front cabinet. Push the hooking claws (10 positions) with hands and then fix the claws.

CAUTION

All the attaching works have completed.

Check that all the hooking claws are fixed to the specified positions.

Minus screwdriver

Hooking claw

Front cabinet

Front cabinet

Fan guard

–

159



RAV-SM800AT-E

No.

Part name

Common procedure

Procedure

CAUTION

Never forget to put on the gloves at working time, otherwise an injury will be caused by the parts, etc.

1. Detachment

1) Stop operation of the air conditioner, and also turn off switch of the breaker.

2) Remove the front panel.

(ST1T

Ø

4 x 10L, 3 pcs.)

•

After taking off screws, remove the front panel by pulling it downward.

3) Disconnect the connecting cables and power cord from the terminals and cord clamp.

4) Remove the upper cabinet.

(ST1T

Ø

4 x 10L, 6 pcs.)

2. Attachment

1) Attach the waterproof cover.

CAUTION

Be sure to attach a waterproof cover.

If it is not attached, there is a possibility that water enters inside of the outdoor unit.

2) Attach the upper cabinet.

(ST1T

Ø

4 x 10L, 6 pcs.)

3) Connect the connecting cable and power cord at the terminal and fix them with cord clamp.

CAUTION

Using bundling band sold at a market, be sure to fix the power cables and indoor/ outdoor connecting cables along the interunit cable so that they do not come to contact with the compressor, valves and cables at gas side, and the discharge pipe.

4) Attach the front cabinet.

(ST1T

Ø

4 x 10L, 3 pcs.)

Front cabinet

Remarks

Upper plate of cabinet

Water-proof cove

–

160



Remarks No.

Part name

Discharge port cabinet

Procedure

1. Detachment


.


Ø

4 x 10L, 3 pcs.) of discharge port cabinet for the partition plate.


Ø

4 x 10L, 2 pcs.) of discharge port cabinet for the bottom plate.

4) Take off screw (ST1T

Ø

4 x 10L, 1 pc.) of discharge port cabinet for the heat exchanger.


Ø

4 x 10L, 2 pcs.) of discharge port cabinet for the fin guard.

2. Attachment

1) Put the upper left side of the discharge port cabinet on the end plate of the heat exchanger, and then fix it with screw.

(ST1T

Ø

4 x 10L, 1 pc.)

2) Attach the removed screws to the original positions.

Side cabinet

Inverter

Fin guard

End plate of the heat exchanger

Discharge port

Side cabinet 1) Perform work of item 1 of

.

2) Remove screw fixing the inverter and the side cabinet. (ST1T

Ø

4 x 10, 1 pc.)

3) Remove screws of the side cabinet and the valve support plate.

(ST1T

Ø

4 x 10, 2 pcs.)

4) Remove screw of the side cabinet and the cabling panel (Rear).

(ST1T

Ø

4 x 10, 1 pc.)

5) Remove screw of the side cabinet and the bottom plate. (ST1T

Ø

4 x 10, 1 pc.)

6) Remove screw of the side cabinet and the fin guard (Heat exchanger).

(ST1T

Ø

4 x 10, 2 pcs.)

Valve support plate

Side cabinet

Inverter

Side cabinet

Valve support plate

Cabling panel

(Rear)

–

161



No.

Part name

Inverter assembly

Procedure

1) Perform works of items of 1) to 5) of

.

2) Take off screw (ST1T

Ø

4 x 10L, 1 pc.) of the upper left part of the inverter cover.

•

If removing the inverter cover under this condition, P.C. board can be checked.

•

If there is no space in the upper part of the upper cabinet, perform works of items 6) to 7) of (1) and remove the partition fixing plate.

(ST1T

Ø

4 x 10L, 1 pc.)

CAUTION

Be careful to check the inverter because high-voltage circuit is incorporated in it.

Screw

Inverter assembly

Holder

3) Perform discharging by connecting the discharging resistance (approx. 100

Ω

,

40W) or plug of soldering iron to + ,

– terminals of the C10 too 13 (printed as

“

CAUTION HIGH VOLTAGE

”

) electrolytic capacitor (760µF) of P.C. board.

WARNING

The electrolytic capacitor may not normally discharge according to error contents and the voltage may remain. Therefore, be sure to discharge the capacitor.

WARNING

For discharging, never use a screwdriver and others for short-circuiting between + and

–

electrodes. As the electrolytic capacitor is one with a large capacity, it is very dangerous because a large electric spark will occur.

4) Remove various lead wires from the holder at upper part of the inverter box.

5) Remove the hook for the partition plate

(lower left side).

6) Remove the hook for the side cabinet

(lower left side) and the screw, and lift up the inverter assembly upward. (ST1T

Ø

4 x

10L, 1 pc.) In this time, cut off the band bundling each lead wire.

7) Disconnect connectors of various lead wires.

REQUIREMENT

As each connector has a lock mechanism, avoid to remove the connector by holding the lead wire, but by holding the connector.

Remarks

Inverter assembly

Hook for the side cabinet (lower left side)

Inverter cover

Inverter assembly

Plug of soldering iron

Left time:

10 sec. or more

Screw

Remove the connectors with locking function by pushing the part indicated by the arrow mark.

–

162



No.

Part name

Control P.C.

board assembly

Procedure

1) Remove the inverter box from P.C. board base.

2) Disconnect lead wires and connectors connected from the control P.C. board assembly to other parts.

1. Lead wires:

With the power terminal block: 2 pcs.

(Single phase) (Red, White)

With the compressor: 3 pcs.

(Red, White, Black)

2. Connectors

CN301 : Outdoor fan (3P, White) *Note 1)

CN300 : Position detection (5P, White)

CN700 : 4-way valve (3P, Yellow) *Note 1)

CN702 : PMV coil (6P, White)

CN600 : TD sensor (3P, White)

CN605 : TS sensor (3P, White) *Note 1)

CN604 : TE sensor (2P, White) *Note 1)

CN601 : TO sensor (2P, White)

CN02 : Indoor/Outdoor connecting

terminal block (2P, Black)

CN500 : Case thermo (2P, White) *Note 1)

CN14, CN15 : Reactor (3P, Relay

connector, Blue) *Note 1)

*Note 1)

Remove the connector while releasing locking of the housing.

3) Remove the control P.C. board assembly from

P.C. board base. (Remove the heat sink and the inverter control P.C. board assembly as they are screwed.)

Note 2)

Remove the heat sink upward by taking off two claws of P.C. base and holding the heat sink.

4) Take off three screws fixing the heat sink to the control P.C. board assembly.

5) Mount a new control P.C. board assembly.

Note 3)

When mounting a new board, check that it is correctly set in the groove of the base holder of

P.C. board base.

Remarks

Inverter box (Metal sheet)

P.C. board base

Cycle control

P.C. board assembly

Inverter control

P.C. board assembly

Cycle control

P.C. board assembly

Inverter control

P.C. board assembly

Inverter control

P.C. board assembly

Groove for

P.C. boaed

Heat sink

Inverter box

(Metal sheet)

–

163



No.

Part name

Fan motor

Procedure

1) Perform works of items 1) to 5), 7) of

2) Remove the flange nut fixing the fan motor and the propeller fan.

•

Loosen the flange nut by turning clockwise. (To tighten the flange nut, turn it counterclockwise.)

3) Remove the propeller fan.

4) Remove the lead wire from the hook fixing the fan motor lead wires on the motor base. (Three positions)


6) Take off the fixing screws (4 pcs.) while holding by hands so that the fan motor does not fall.

NOTE :

Tighten the flange nut with torque 9.8Nm

(100kgf/cm).

Flange nut

Remarks

Loosen by turning clockwise

Propeller fan

Fan motor

–

164


Motor base

Fixing claws for fan motor lead wires (3 positions)


Remarks No.

Part name

Compressor

Procedure


,

,

,

, and

.

2) Evacuate refrigerant gas.


4) Take off screws fixing the motor base to the bottom plate. (ST1T

Ø

4 x 10L, 2 pcs.)

5) Remove the motor base together with the fan motor and the propeller fan.

6) Take off screws fixing the partition plate to the valve support plate.

(ST1T

Ø

4 x 10L, 2 pcs.)

7) Remove the valve support plate.

(M6 x 4 pcs.)

8) Take off screws of the partition plate and the bottom plate. (ST1T

Ø

4 x 10L, 2 pcs.)

9) Take off screws of the partition plate and the heat exchanger. (ST1T

Ø

4 x 10L, 2 pcs.)

10) Remove the noise-insulator.

11) Remove the terminal covers of the compressor, and disconnect lead wires of the compressor and the compressor thermo assembly from the terminal.

12) Remove pipes connected to the compressor with a burner.

CAUTION

Pay attention to that flame does not involve

4-way valve or PMV. (If doing so, a malfunction may be caused.)

13) Pull the refrigerating cycle upward.

14) Take off nut fixing the compressor on the bottom plate. (3 pcs.)

15) Pull the compressor toward you.

CAUTION

When reconnecting the lead wires to the compressor terminals after replacement of the compressor, be sure to caulk the Faston terminal without loosening.

Partition plate

Motor base

Screw

Valve support

Partition plate

Valve support

Compressor lead wire

Case thermo

Remove

(Suction pipe)

Remove

(Discharge pipe)

Compressor nut (3 pcs.)

–

165


No.


Part name

Reactor

Procedure


and

.

2) Take off screws fixing the reactor.

(

Ø

4 x 10L , 2 pcs. per one reactor.

An outdoor unit has two reactors on the partition plate.)

Remarks

Screws

Partition plate

Reactor

Pulse Modulating

Valve (PMV) coil

1. Detachment


and

.

2) Remove the coil from PMV body while pulling it upward.

2. Attachment

1) Match the positioning extrusion of the coil surely to the concavity of PMV body to fix it.

PMV body

Positioning extrusion

PMV coil

Concavity

–

166



No.

Part name

Fan guard

Procedure

1. Detachment


and

.

2) Remove the air flow cabinet, and put it down so that the fan guard side directs downward.

Perform work on a corrugated cardboard, cloth, etc. to prevent flaw to the product.

3) Take off screws fixing the bell mouth.

(ST1Tf4 x 10L, 2 pcs.)

4) Remove the bell mouth.

5) Remove the hooking claws by pushing with minus screwdriver along with the arrow mark as shown in right figure.

2. Attachment

1) Insert claw of the fan guard in hole of the discharge panel. Push the hooking claws

(5 positions) with hands and fix the claws.

After all the attachment works are completed, check that all the hooking claws are fixed to the specified positions.

2) Mount the bell mouth by hooking three claws at upper side of the bell mouth in the slits on the discharge cabinet.

3) After attachment, fix the bell mouth with screws. (ST1Tf4 x 10L, 2 pcs.)

Remarks

Minus screwdriver

Hooking claw



Bell mouth

Remove two screws

Bell mouth


Fan guard

Slit (3 positions)

Bell mouth

–

167


Claw (3 positions)


16. EXPLODED VIEWS AND PARTS LIST




209

224

210

203,204

225

208

202

226

201

207

215,216,217,

218,221,222

211,212,213,

214,219,220

SET DATA

UNIT No.

SETTING TEST

R.C.

No.

SET CL

UNIT

223

227,228

CODE No.

206

229

Location

No.

Part Description

201 43121703 Pump, Drain, ADP-1409,

220-240V

202 43120215 Fan, Ass’y Turbo, TJ461

203 4314J122 Refrigeration Cycle Ass’y


205 4318T313 Owner’s Manual

206 43172160 Pan Ass’y, Drain,

PS-F+ABS, Sheet

207 43151279 Switch, Float, FS-0218-106

208 43121692 Motor, Fan, SWF-230-60-1

209 43170232 Hose, Drain, 25A

210 43079249 Band, Hose

211 43047545 Nut, Flare, 1/4 IN, Ø6.35

212 43047546 Nut, Flare, 3/8 IN, Ø9.52

213 43194051 Socket, Ø6.35

214 43194026 Socket, Ø9.52

215 43194081 Nut, Flare, 1/2 IN, Ø12.7

215 43194081 Nut, Flare, 1/2 IN, Ø12.7


Location

No.


216 43194078 Nut, Flare, 5/8 IN, Ø15.88

217 43194080 Socket, 1/2 IN, Ø12.7

218 43194079 Socket, 5/8 IN, Ø15.88

219 43049697 Bonnet, Ø6.35

220 43047609 Bonnet, Ø9.52

221 43147195 Bonnet, 1/2 IN, Ø12.7

222 43194029 Bonnet, Ø15.88

223 43019904 Holder, Sensor, SUS

224 43170231 Hose, Drain

225 43139137 Rubber, Cushion

226 43097204 Nut

227 43147656 Distributor Ass’y


229 4316V194 Remote Controller, SX-A3JE


231 4316V196 Remote Controller, WX-W2JE

232 4316V197 Remote Controller, WH-H1JE


402

404

B

A

401

405

403

Location

No.


401 43060750 Terminal Block, 3P

402 43050382 Sensor, TC (F6)

403 43150297 Sensor, TC

404 43160445 Terminal Block, 2P,

1A, AC30V

405 4316V188 P.C. Board Ass’y, MMC-1402





230,231

210,211,214,

215,218,219

202,203

204

227

212,213,216,

217,220,221

SET DATA

UNIT No.

SETTING TEST R.C.

No.

CODE No.

224,225

222

208,209

Location

No.


201 43120149 Fan, Multi Blade





206 43121643 Motor, Fan

207 43121645 Motor, Fan

208 43191304 Drain Ass’y

209 43191305 Pan, Drain

210 43047545 Nut, Flare, 1/4 IN, Ø6.35

211 43047546 Nut, Flare, 3/8 IN, Ø9.52

212 43194081 Nut, Flare, 1/2 IN, Ø12.7

213 43194078 Nut, Flare, 5/8 IN, Ø15.88

214 43194051 Socket, Ø6.35

215 43194026 Socket, Ø9.52

216 43194080 Socket, 1/2 IN, Ø12.7

217 43194079 Socket, 5/8 IN, Ø15.88

206,207

201

SET CL

UNIT

Location

No.


218 43049697 Bonnet, Ø6.35

219 43047609 Bonnet, Ø9.52

220 43147195 Bonnet, 1/2 IN, Ø12.7

221 43194029 Bonnet, Ø15.88

222 43019822 Holder, Sensor, SUS

223 43160394 Connector, 9P

224 43155088 Capacitor, Electrolytic,

2.5MFD, 500V

225 43155096 Capacitor, Electrolytic,

5MFD, 400V

226 43121688 Pump, Drain, PJD-05230TF,

220-240V 50/60Hz



229 4316V196 Remote Controller, WX-W2JE

230 43119462 Filter (SM560BT-E)

231 43119463 Filter (SM800BT-E)


402


403

401

406

404

405

Location

No.


401 43060750 Terminal Block, 3P

402 43050382 Sensor, TC (F6)

403 43150299 Sensor, TA


1A, AC30V

405 4316V189 P.C. Board Ass’y,

MCC-1403 (220-240V)

406 43158180 Transformer, TT-09

(AC220-240V)



RBC-U21PG(W) - E

304

311

312

306

305

307

301

303

302

313

310

308

309

Location

No.


301 43409164 Panel, PS-HI100

302 43480010 Air Filter, ABS

303 43407120 Outlet, Air Form, PS-F

304 4302C029 Motor, Louver, MP24GA

305 43409173 Louver, ABS

306 43422001 Joint, Kit

307 43422002 Joint, Kit

Location

No.


308 43407116 Grille, Catch, ABS

309 43409168 Grille, Air, Inlet

310 43409182 Cover, Panel Ass’y,

PS-HI100

311 43407123 Fix, Motor, ABS

312 43460108 Lead, Motor

313 43482025 Washer, SPCC



High-Wall Type


201

221

229

227

222

228

208

203

205

204

236

217

220

219

213

218

216

211

230

209

226

232

231

224 225

223

212

210

207

233

206

202

Location

No.


201 43T00355 Front Panel Ass’y

202 43T00356 Grille Ass’y

203 43T80014 Air Filter, (L)

204 43T80013 Air Filter, (R)

205 43T80003 Filter, Frame

206 43T01004 Mark

207 43T03010 Body, Right

208 43T03011 Body, Left

209 43T03012 Hide, Claw

210 43T09317 Grille, Horizontal

211 43T70301 Hose Ass’y, Drain

212 43T21302 Motor, Stepping, MP35EA12

213 43T44316 Refrigeration Cycle Ass’y

(SM560KRT-E)

213 42T44317 Refrigeration Cycle Ass’y

(SM800KRT-E)

216 43T11002 Pipe, Shield

216 43T11306 Pipe, Shield (SM800KRT-E)

Location

No.


217 43T19003 Holder, Sensor

218 43T49009 Spring

219 43T49036 Plate, EVA, Seal

220 43T49039 Holder, Plate EVA, Seal (U)

221 43T49038 Plate EVA, Seal (D)

222 43T49037 Holder, Plate EVA, Seal (D)

223 43T79007 Guide, Drain

224 43T39016 Fix Motor

225 43T60075 Fan Motor Cord

226 43T21327 Motor, Fan, ICF-340-30-2

227 43T20014 Fan, Cross Flow

228 43T22008 Bearing

229 43T39015 Base, Bearing

230 43T03305 Back Body Ass’y

231 43T07022 Holder, Pipe

232 43T82007 Plate, Installation


236 43T62029 Cover, Terminal




411

410

406

408

402

401

413

404 404

412

403

Location

No.


401 43T60047 Terminal, 3P



404 43T50304 Temperature Sensor, TC, TCJ

406 43T69005 Sensor, Thermostat, TA

408 43T58302 Transformer, TT-02

410 43T69346 P.C. Board, Ass’y, MCC-

1370A, MCC-1370B

(SM560KRT-E)

Location

No.


410 43T69347 P.C. Board, Ass’y, MCC-

1370A, MCC-1370B

(SM800KRT-E)

411 43T69325 P.C. Board, Ass’y, AI, MCC-

1337

412 43T69066 P.C. Board Ass’y, WRS-LED,

MCC-819-02

413 43162047 Cord clamp




RAV-SM560AT-E

4

31

30

8

9

13,14

10

11

INVERTER

25

17

2

29

18

7

28

5

26

3

27

12

15

16

20

19

21,

22

23,

24

6

1

Location

No.

9

10

11

6

7

8

1

4

5

2

3

12

13

14

15

16

17


43105037 Cabinet, Front, PCM

43100239 Cabinet, Back, PCM

43042468 Base, Ass’y

43005508 Cabinet, UP, PCM

43119460 Guard, Fan, PP

43119448 Cover, Packed, Valve

43062230 Cover, Wiring, Ass’y

43047667 Nut, Flange

43020329 Fan, Propeller, PJ421

4302C033 Motor, Fan, ICF-140-43-1

4314G128 Condenser, Ass’y

43041609 Compressor, DA130A1F-23F

43050407 Thermostat, Bimetal

43063317 Holder, Thermostat

43097206 Bolt, Compressor, M6

43049749 Rubber, Cushion

43046363 Valve, 4-WAY, VT7101D

27

28

29

24

25

26

30

31

Location

No.

18

19

20

21

22

23


43146617 Solenoid, Coil, LB64045

43046385 Valve, Pulse, Modulating,

SKV-18D26

43046394 Coil, PMV, DKV-

MOZS744BO

43046392 Valve, Packed, 6.35, AO

43147195 Bonnet, 1/2 IN

43046393 Valve, Packed, 12.7, HKU-

R410A-H4

43147196 Bonnet, 1/4 IN, 6.4 CU

43055521 Reactor, CH-57

43063321 Holder, Sensor, 4-8, 9.52

43063322 Holder, Sensor, 6-11.4, 12.7

43063325 Holder, Sensor, 6-6.35, 8

43063332 Holder, Sensor

43089160 Cap, Waterproof

43032441 Nipple, Drain



702

701

TE Sensor

TS Sensor

TO Sensor

TD Sensor

705

703

704

Location

No.


701 43050334 Sensor, TD (F4),

TD Sensor

702 43050382 Sensor, TC (F6),

TC Sensor

703 43062228 Base, P.C. Board, ABS


AC250V, 20A

706 4316V182 P.C. Board Ass’y,

MCC-813


Revised 3/June/2004

4

37

11

9

10

5

38

8

7

2

32

21,22

36

34 24

23

30

14

35

6

1

Location

No.

8

9

10

11

12

13

14

6

7

4

5

1

2

3

15

16

17

18

19

20

21


43191634 Cabinet, Air Outled

43191636 Cabinet, Front, Ass’y

43191635 Cabinet, Side, Ass’y

43191637 Panel, Upper

43005489 Guard, Fin

43191630 Guard, Fan, PP-K

43122065 Bell Mouth, Plastic

43047667 Nut, Flange

43120

213

Fan, Propeller, PJ491, AS-G

43121693 Motor, Fan, ICF-140-63-1

4314G117 Condenser, Ass’y

43191515 Panel, Front, Piping

43191605 Panel, Back, Piping

43119390 Hanger

43041772 Compressor Ass’y

43050407 Thermostat, Bimetal

43063317 Holder, Thermostat

43005482 Base Ass’y

43049739 Cushion, Rubber

43097204 Nut

43046344 Valve, 4-WAY, CHV-0213

31

3

13

27

15 18

33

12

16,17

19

20

26

28

25

29

Location

No.

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38


43046348 Coil, Solenoid,

VHV-01A150A1

43046385 Valve, Pulse, Modulating,

SKV-18D26

43046386 Coil, PMV,

DKV-MO25743BO

43048066 Accumulator Ass’y

43146584 Valve, Packed, 9.52DIA,

HKT9.52

43047401 Bonnet, 3/8 IN, 9.52 CU

43146613 Valve, Ball, B5/8F

4319

4

029 Bonnet

43148169 Strainer

43148176 Strainer

43058266 Reactor, CH-47-Z-K

43063321 Holder, Sensor,

4-8, 9.52


6-11.4, 12.7


6-6.35, 8

43063332 Holder, Sensor

43032441 Nipple, Drain

43058268 Reactor, CH-43-Z-K

– 177 –



INVERTER COVER

706

INVERTER BOX

704

703,705

707

708,709

702

TO Sensor

TE Sensor

TS Sensor

TD Sensor

701

Location

No.


701 43050334 Sensor, TD (F4), TD Sensor

702 43050382 Sensor, TC (F6), TC Sensor


AC250V, 20A

705 43162042 Base, P.C. Board, ABS

707 4316V183 P.C. Board Ass’y, CDB,

MCC-1398

708 4316V184 P.C. Board Ass’y, IPDU,

MCC-1359




220

222

217

218

224

227

203

208

207

214

208

212

206

202

235

204

209

213

210

211

219

215

221

233

226

225

228

229

231

201

205

235

232

Location

No.


201 43T09312 Air Inlet Grille

202 43T00357 Panel Arm Ass’y



204 43T01004 Mark

205 43T79303 Drain Band

206 43T80302 Air Filter

207 43T00359 Cap Screw C

208 43T00360 Cap Screw LR

209 43T20303 Fan Cover

210 43T20304 Motor Band Ass’y

211 43T20305 Multiblade Fan

212 43T19309 Screw Set (D-T)

213 43T21325 Fan Motor

214 43T72301 Drain Pan Ass’y

215 43T79304 Drain Hose Ass’y

216 43T19303 Lover Motor Ass’y

217 43T09313 Horizontal Louver

218 43T44319 Refrigeration Ass’y, Ø12.70

219 43T03303 Back Body Ass’y

234

230

Location

No.


220 43T09314 Vertical Louver

221 43T49303 Pipe Holder

222 43T19304 Cover Body L

223 43T19305 Cover Body R

224 43T19306 Cover Body LD

225 43T19307 Bush Body R

226 43T19308 Bush Body D

227 43T82302 Installation Plate

228 43T60314 Terminal Cover

229 43T62303 Connector Cover

230 43T83003 Remote Controller Holder

231 43T69309 Wireless Remote Controller

231 43T69310 Wireless Remote Controller





233 43T49304 Flexible pipe, Ø12.70, Ass’y

234 43T80003 Filter Flame

235 43T00365 Grille Stopper Ass’y


223

216


401

405

404

403

402

408

407

406

Location

No.


401 43T69311 P.C. Board

401 43T69312 P.C. Board

401 43T69313 P.C. Board

401 43T69314 P.C. Board

402 43T50004 Temperature Sensor


Toshiban lämmitys- ja jäähdytyslaitteiden jälleenmyyjä pääkaupunkiseudulla on Jäähdytinpalvelu RefGroup Oy www.ilmalämpöpumput.com

SERVICE MANUAL SPLIT TYPE

SERVICE MANUAL

SPLIT TYPE

CONTENTS

1. SPECIFICATIONS

1-1. Indoor Unit

1-1-1. 4-Way Air Discharge Cassette Type

1-1-2. Concealed Duct Type

1-1-3. High-Wall Type

1-1-4. Flexible Type

1-2. Outdoor Unit

2. AIR DUCTING WORK

2-1. Static Pressure Characteristics of Each Model

3. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

3-1. Indoor Unit

3-2. Outdoor Unit

4. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM

Indoor unit

Outdoor unit

*

Indoor unit

Outdoor unit

*

5-1. Indoor Unit

5. WIRING DIAGRAM

MCC-1402

Control P.C. Board for

Indoor Unit

AI-NET

P.C. BOARD

MCC-1337

MCC-1370A

Control P.C. Board for

Indoor Unit

5-2. Outdoor Unit

6. SPECIFICATIONS OF ELECTRICAL PARTS

6-1. Indoor Unit

6-2. Outdoor Unit

6-3. Accessory Separate Sold Parts

7. REFRIGERANT R410A

7-1. Safety During Installation/Servicing

7-2. Refrigerant Piping Installation

7-2-1. Piping Materials and Joints Used

7-2-2. Processing of Piping Materials

7-3. Tools

7-3-1. Required Tools

7-4. Recharging of Refrigerant

7-5. Brazing of Pipes

7-5-1. Materials for Brazing

7-5-2. Flux

7-5-3. Brazing

8. CONTROL BLOCK DIAGRAM

8-1. Indoor Control Circuit

8-2. Control Specifications

9. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS

9-1. Microcomputer System Block Diagram

9-1-1. Connection of Main Remote Controller

9-1-2. Connection of Wireless Remote Controller

Indoor unit

Infrared radiation

Main P.C. board (MCC-1370A)

E E P R O M

Sensors LED

Sensor display

P.C. board

CPU

Optional output

Comp.

Run

Error

Heat

Louver motor

Indoor fan motor

Driver

Indoor fan control circuit

DC

12V

DC

5V

DC15V