TOSHIBA RAV-SM562MUT-E split-system air conditioner Service Manual

FILE NO. A06-005

SERVICE MANUAL

SPLIT TYPE

<DIGITAL INVERTER>

INDOOR UNIT

RAV-SM562MUT-E

This Service Manual describes contents of the new indoor unit.

For the outdoor unit, refer to the Service Manual with FILE NO. A05-001.

R410A

PRINTED IN JAPAN, Aug.,2006 ToMo

ADOPTION OF NEW REFRIGERANT

This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional refrigerant R22 in order to prevent destruction of the ozone layer.

WARNING

Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have a service person do it. Do not attempt it yourself. The cleaning diagram for the air filter is there for the service person, and not for the customer.

CONTENTS

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

1-1. Indoor Unit .............................................................................................................................................. 3

1-2. Combination Specifications of Indoor Units with Outdoor Units ...................................................... 4

1-3. Operation Characteristic Curve ............................................................................................................ 5

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ............................................................ 6

2-1. Indoor Unit .............................................................................................................................................. 6

3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM .................................................... 7

3-1. Indoor Unit/Outdoor Unit ....................................................................................................................... 7

4. WIRING DIAGRAM....................................................................................................... 10

4-1. Indoor Unit ............................................................................................................................................ 10

5. SPECIFICATIONS OF ELECTRICAL PARTS .............................................................. 12

5-1. Indoor Unit ............................................................................................................................................ 12

6. REFRIGERANT R410A ................................................................................................ 13

6-1. Safety During Installation/Servicing .................................................................................................. 13

6-2. Refrigerant Piping Installation .......................................................................................................... 13

6-3. Tools ..................................................................................................................................................... 17

6-4. Recharging of Refrigerant ................................................................................................................... 18

6-5. Brazing of Pipes ................................................................................................................................... 19

6-6. Tolerance of Pipe Length and Pipe Head ........................................................................................... 21

6-7. Additional Refrigerant Amount ........................................................................................................... 22

6-8. Piping Materials and Sizes .................................................................................................................. 23

6-9. Branch Pipe .......................................................................................................................................... 23

7. CONTROL BLOCK DIAGRAM ..................................................................................... 24

7-1. Indoor Control Circuit .......................................................................................................................... 24

7-2. Control Specifications ......................................................................................................................... 25

7-3. Indoor Print Circuit Board ................................................................................................................... 32

8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS .............................. 33

8-1. Indoor Control Circuit .......................................................................................................................... 33

9. TROUBLESHOOTING .................................................................................................. 35

9-1. Summary of Troubleshooting .............................................................................................................. 35

9-2. Check Code List ................................................................................................................................... 37

9-3. Error Mode Detected by LED on Outdoor P.C. Board ....................................................................... 40

9-4. Troubleshooting Procedure for Each Check Code ............................................................................ 41

10. REPLACEMENT OF SERVICE INDOOR P.C. BOARD ................................................ 57

11. SETUP AT LOCAL SITE AND OTHERS ...................................................................... 61

11-1. Indoor Unit ............................................................................................................................................ 61

11-2. Setup at Local Site / Others ................................................................................................................ 67

11-3. How to Set up Central Control Address Number .............................................................................. 71

12. ADDRESS SETUP ....................................................................................................... 72

12-1. Address Setup ..................................................................................................................................... 72

12-2. Address Setup & Group Control ......................................................................................................... 73

12-3. Address Setup ..................................................................................................................................... 74

13. DETACHMENTS ........................................................................................................... 76

13-1. Indoor Unit ............................................................................................................................................ 76

14. EXPLODED VIEWS AND PARTS LIST ........................................................................ 84

14-1. Ceiling Panel ........................................................................................................................................ 84

14-2. Compact 4-way Air Discharge Cassette Type .................................................................................... 85

– 2 –

1. SPECIFICATIONS

1-1. Indoor Unit

1-1-1. Compact 4-way Cassette Type

Model

Cooling capacity

Heating capacity

Power supply

Indoor unit

Outdoor unit

RAV-

RAV-

RAV-

(kW)

(kW)

Electrical chracteristics

Cooling

Running current (A)

Power consumption (kW)

Power factor (%)

EER (W/W)

Energy efficiency class

Energy rating

Running current (A)

Heating

Power consumption (kW)

Power factor (%)

COP (W/W)

Energy efficiency class

Energy rating

Main unit

Appearance

Ceiling panel

Model

Panel color

Height

Width Main unit

Outer dimension

Depth

Ceiling panel

(Sold separately)

Height

Width

Depth

Main unit

Total weight

Heat exchanger

Ceiling panel (Sold separately)

(mm)

(mm)

(mm)

(mm)

(mm)

(mm)

(kg)

Fan unit

Fan

Standard air flow H/M/L

Motor

(Content) Air filter

Controller (Sold separately)

Gas side

(Content)

Connecting pipe Liquid side

Drain port

Sound pressure level

Sound power level

H/M/L

H/M/L

(m³/min.)

(W)

(mm)

(mm)

(dB•A)

(dB•A)

DI

SM562MUT-E

—

SM562AT-E

5.0

5.6

7.02 to 7.75

1.61

95

3.11

B

4.0

7.04 to 7.72

1.61

95

3.48

B

4.5

DI TWIN

SM562MUT-E

SM562MUT-E

SM1102AT-E

10.0

11.2

SDI

SM562MUT-E

—

SP562AT-E

5.0

5.6

1 phase 230V (220 – 240V) 50Hz

14.96 to 16.32

6.6 to 7.15

3.52

98

1.53

97

2.84

C

—

13.35 to 14.56

3.27

A

4.5

6.62 to 7.21

3.14

98

3.57

B

1.54

97

3.64

A

— 4.5

Zinc hot dipping steel plate

RBC-UM11PG (W)-E

Moon-white (Muncel 2.5GY 9.0/0.5)

268

575

575

27

700

700

17

3

Finned tube

Turbo fan

13.3 / 11.2 / 9.1

60

Long life filter

Remote controller

12.7

6.4

VP25

43 / 39 / 34

58 / 54 / 49

SDI TWIN

SM562MUT-E

SM562MUT-E

SP1102AT-E

10.0

11.2

10.31 to 11.24

2.4

97

4.17

A

—

10.95 to 11.95

2.55

97

4.39

A

—

Note 1 : The cooling capacities and electrical characteristics are measured under the conditions speciied by JIS B 8616 based on the reference piping 7.5m.

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 3 : 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

Note 4 : DI : Digital Inverter, SDI : Super Digital Inverter

– 3 –

1-2. Combination Specifications of Indoor Units with Outdoor Units

Indoor Unit

Outdoor Unit

Standard capacity (Note 1)

Energy consumption effect ratio

Power supply

Running current

Electrical characteristics

Power consumption

Power factor

Sound level

Indoor unit

High/Mid./Low

(Note 2)

(kW)

(W/W)

(A)

(kW)

(%)

(dB•A)

RAV-SM562MUT-E

RAV-SP562AT-E

Cooling

5.30 (2.20-5.60)

Heating

5.60 (2.20-7.10)

3.46

4.67

1 phase 230V (220-240V) 50Hz

7.17-6.57

1.53

97

5.62-5.15

1.20

97

32/29/27

Note 1 : The cooling capacities and electrical characteristics are measured under the conditions specified by JIS B 8616 based on the reference piping 7.5m.

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 3 : 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

– 4 –

1-3. Operation Characteristic Curve

<Digital Inverter>

RAV-SM562MUT-E / RAV-SM562AT-E

<Cooling>

10

8

6

4

2

0

0

• Conditions

Indoor : DB27˚C/WB19˚C

Outdoor : DB35˚C

Air flow : High

Pipe length : 7.5m

230V

20 40 60 70 80

Compressor speed (rps)

100

<Heating>

10

8

6

4

2

0

0

• Conditions

Indoor : DB20˚C

Outdoor : DB7˚C/WB6˚C

Air flow : High

Pipe length : 7.5m

230V

20 40 60


80 90 100

<Super Digital Inverter>

RAV-SM562MUT-E / RAV-SP562AT-E

<Cooling>

10

<Heating>

12

8

6

4

2

0

0

• Conditions

Indoor : DB27˚C/WB19˚C

Outdoor : DB35˚C

Air flow : High

Pipe length : 7.5m

230V

20 40 50 60 70 80


100

– 5 –

4

2

0

0

10

8

6

• Conditions

Indoor : DB20˚C

Outdoor : DB7˚C/WB6˚C

Air flow : High

Pipe length : 7.5m

230V

20 40 60 70


80 90 100


2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

200

1000 or more 595 to 660 Ceiling open dimension

Obustacle

1000 or more

Space required for installation and servicing

Check port

( 450)

Check port

( o

450) Check port

( 450)

Drain-up standing-up size

Indoor unit

Bottom face of ceiling

Note)

As ABS is used for the drain discharge port of the main unit, the vinyl chlor paste cannot be used.

Use the flexible hose (Band fix) included in the package.

4

142 64 368.5


145.5

93

Knockout for flesh air intake Ø100

700 Panel external dimension

595 to 660 Ceiling open dimension

525 Hanging bolt pitch

105 70

• Wired remote controller

(RBC-AMT31E)

Drain discharge port

Hanging bolt

M10 or W3/8 local arrange

120

268

220.5

145.5

134

63

27

16


Ceiling panel

Ø162

Ø162

For branch duct knockout square hole Ø150

Electric parts box 320.5

575 Unit external dimension


Refrigerant pipe

(Liquid) Ø6.4

For branch ductt knockout square hole Ø150

Refrigerant pipe

(Gas) Ø12.7

70 105

55

93

139.5

190.5

Wiring connection port

– 6 –

3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM

3-1. Indoor Unit/Outdoor Unit

• Single type (Combination of one indoor unit and one outdoor unit)

RAV-SM562MUT-E

Distributor

(Strainer incorporated)

TC sensor

Indoor unit

TCJ sensor

Air heat exchanger

Heating time

Cooling time

Refrigerant pipe at liquid side

Outer diameter Ø6.4

To outdoor unit

Refrigerant pipe at gas side


To outdoor unit

• Twin type (Combination of two indoor units and one outdoor unit)

RAV-SM562MUT-E

Distributor


Indoor A unit

TCJ sensor

Air heat exchanger

TC sensor

RAV-SM562MUT-E

Distributor


Indoor B unit

TCJ sensor

Air heat exchanger

Heating time

Cooling time

TC sensor









Branch pipe

Refrigerant pipeat liquid side


To outdoor unit

Branch pipe



To outdoor unit

– 7 –

RAV-SM562MUT-E / RAV-SP562AT-E

Outer diameter of refrigerant pipe

Gas side ØA Liquid side ØB

12.7mm

6.4mm

TS sensor

Indoor unit

Air heat exchanger

TCJ sensor

TC sensor

Pd

* The refrigerating cycle of the indoor units differs according to the models to be combined. For the refrigerating cycles of the other indoor units, refer to the corresponding Service Manuals described in the list on the cover.


Outer dia. ØA


Outer dia. ØB

Packed valve

Outer dia. ØA

Strainer

TO sensor

Outdoor unit

Min.

5m

Max.

50m

Packed valve

Outer dia. ØB

Ps

Modulating

(PMV)

(SKV-18D26)

Accumulator

(1500cc)

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

Pd

(MPa)

Ps

2.71

1.03

3.48

1.16

1.92

0.74

2.22

0.72

3.47

1.16

1.79

0.25

Discharge

(TD)

75

Pipe surface temperature (°C)

Suction

(TS)

15

Indoor heat Outdoor heat exchanger exchanger

(TC)

10

(TE)

38

Compressor revolutions per second (rps)

∗∗∗∗∗

43

81 20 16 51 44

34

62

5

6

2

38

11

2

24

41

81

71

20

–16

55

30

15

–18

41

70

Indoor fan

HIGH

HIGH

LOW

HIGH

LOW

HIGH

Indoor/Outdoor temp. conditions

(DB/WB) (°C)

Indoor Outdoor

27/19 35/–

32/24

18/15.5

43/–

–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.

* For the details of the outdoor units during twin combination of a digital inverter and a super digital inverter, refer to page 34 (Digital Inverter) and also page 37 (Super Digital Inverter) of the Service Manual File No.A05-018.

– 8 –

RAV-SM562MUT-E / RAV-SM562AT-E

Indoor unit

TC sensor

Air heat exchanger

TCJ sensor

Outer diameter of refrigerant pipe

Gas side ØA Liquid side ØB

12.7mm

6.4mm

TS sensor

TD sensor

Rotary compressor

(DA150A1F-20F)

4-way valve

(STF-0108Z)

Muffler

Ø19 × L160

2-step muffler

Ø19 .05 × 200L


Ø12.7

Packet valve

Packed valve

Outer dia. ØA

TO sensor

Outdoor unit


Ø6.4

Packet valve

Min.

5m

Packed valve

Outer dia. ØB

Max.

30m

PMV

(Pulse Motor Valve)

(CAM-B30YGTF-1)

Strainer

Heat exchanger

Ø8 ripple, 2 rows,

14 steps

FP1.3 flat fin

TE sensor

Distributor

R410A 1.0 kg

Cooling

Heating

Pressure

(MPa) (kg/cm²G)

Pd Ps Pd Ps

Standard 3.50

0.97

35.7

9.9

Cooling Overload 3.90

1.08

39.8

11.0

Discharge

(TD)

Pipe surface temperature (°C)

Suction

(TS)

Indoor heat Outdoor heat exchanger exchanger

(TC) (TE)

Compressor revolutions per second (rps)

∗∗∗∗∗

Indoor fan

Indoor/Outdoor temp. conditions

(DB/WB) (°C)

Indoor Outdoor

85

93

14

26

12

17

48

54

70

70

HIGH

HIGH

27/19

32/24

35/–

43/–

Low load 1.90

0.70

19.4

7.1

Standard

Heating Overload

Low load

2.31

2.86

1.86

0.61

0.89

0.25

13.6

29.2

19.0

6.2

9.1

2.6

48

87

86

69

7

5

17

–14

5

40

47

31

30

1

11

–15

50

97

95

98

LOW

HIGH

LOW

HIGH

18/15.5

–5/–

20/– 7/6

28/– 24/18

15/– –10/(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.

* For the details of the outdoor units during twin combination of a digital inverter and a super digital inverter, refer to page 34 (Digital Inverter) and also page 37 (Super Digital Inverter) of the Service Manual File No.A05-018.

– 9 –

4. WIRING DIAGRAM


4-1-1. Compact 4-way Cassette Type

LM1

5 5

4 4

3 3

2 2

1 1

LM2

5 5

4 4

3 3

2 2

1 1

5 5

4 4

3 3

2 2

1 1

FM

FS

TA TCJ TC

CN34

(RED)

3 3

2 2

1 1

1 2

1 2

CN104

(YEL)

1 2

1 2

CN102

(RED)

1 2

1 2

CN101

(BLK)

1 2 3

CN80

(GRN)

MCC-1402

CN33

(WHI)

5 5

4 4

3 3

2 2

1 1

Control P.C. Board for

Indoor Unit

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

Motor drive circuit

RY

303

1 2 3

CN304

(GRY)

Fuse

F302

T3.15A

250V~

Power supply circuit

DC20V

DC15V

DC12V

DC7V

+

~

–

~

Fuse

F301

250V~

T6.3A

CN67

(BLK)

1 2

1 2

3

3

4

4

5

5

P301

BLK

1 2

CN66

(WHI)

RED WHI BLK

(EXCT)

1 2

CN73

(RED)

1 2

CN70

(WHI)

CN50

(WHI)

Connection interface (option)

CN51

(RED)

5

4

3

2

1

5

4

3

2

1

5

4

3

2

1

5

4

3

2

1

P.C.

Board

6

5

4

3

2

1

CN60

(WHI)

2

1

CN32

(WHI)

(FAN DRIVE)

1 2

1 2

CN40

(BLU)

U3 U4

Terminal for central remote controller

6

5

4

3

2

1

CN61

(YEL)

3

2

1

CN309

(YEL)

3 3

2 2

1 1

CN41

(BLU)

BLK

WHI

B

A

BLK

WHI

BLK

WHI

2 2

1 1

CN001

(WHI)

Adapter for

Wireless Remote

Controller

B

A

Wired Renote

Controller

DP

NOTE

FM

TA

TC

TCJ

LM1,LM2

DP

FS

RY302

: Fan motor

: Indoor temp. sensor

: Temp. sensor

: Temp. sensor

: Louver motor

: Drain pump motor

: Float switch

: Drain control relay

1 2 3

Indoor unit earth screw

1 2 3

L N

Single phase

220 to 240V

50Hz

Serial signal

Outdoor unit earth screw

Color

Identification

:

:

:

:

:

:

:

:

:

: BLK

BLU

RED

GRY

PNK

GRN

WHI

BRN

ORN

YEL

BLACK

BLUE

RED

GRAY

PINK

GREEN

WHITE

BROWN

ORANGE

YELLOW

– 10 –

• Single type

Power supply 220-240V

Single phase 50Hz

L

N

Outdoor unit

1 2 3

1 2 3

Indoor unit

A B

A B

• Twin type

Power supply 220-240V

Single phase 50Hz

Wired remote controller

RBC-AMT31E

L

N

Outdoor unit

1 2 3

Notes)

1.

: indicates a terminal block

2. Broken line and chain line indicate wiring at local site.

3. For the inner wiring diagram of the outdoor unit and the indoor unit, refer to the wiring diagram of each model.

4. There is no polarity. It is no problem that the remote controller is connected to the indoor unit terminal block

A and B reversely.

5. When using a wireless remote controller, connection of the remote controller to A and B terminal blocks are unnecessary.

1 2 3

Indoor unit

No.1 (Master)

A B

1 2 3

Earth screw Indoor unit

No.2 (Sub)

A B

A B

Wired remote controller

RBC-AMT31E

Notes)

1.

: indicates a terminal block

2. Broken line and chain line indicate wiring at local site.

3. For the inner wiring diagram of the outdoor unit and the indoor unit, refer to the wiring diagram of each model.

4. There is no polarity. It is no problem that the remote controller is connected to the indoor unit terminal block

A and B reversely.

5. When using a wireless remote controller, connection of the remote controller to A and B terminal blocks are unnecessary. (Wire connection between indoor unit No.1

and No.2 is necessary.)

– 11 –

5. SPECIFICATIONS OF ELECTRICAL PARTS


4

5

6

No.

1

Parts name

Fan motor (for indoor)

2

3

Thermo. sensor (TA-sensor)

Heat exchanger sensor (TCJ-sensor)

Heat exchanger sensor (TC-sensor)

Float switch

Drain pump motor

Type

SWF-230-60-1R

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

– 12 –

6. 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.

6-1. 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.

6-2. Refrigerant Piping Installation

6-2-1. 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 6-2-1. Never use copper pipes thinner than 0.8 mm even when it is available on the market.

– 13 –

Nominal diameter

1/4

3/8

1/2

5/8

Table 6-2-1 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

2) Joints

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

a) Flare Joints

Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds

20 mm. In such a case, socket joints can be used.

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

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 6-2-2.


1/4

3/8

1/2

5/8

Table 6-2-2 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

6-2-2. 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.

– 14 –

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. 6-2-1 Flare processing dimensions

Table 6-2-3 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

1.0 to 1.5

1.0 to 1.5

1.0 to 1.5

1.0 to 1.5

Wing nut type

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 6-2-4 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

Wing nut type

1.0 to 1.5

0.5 to 1.0

0.5 to 1.0

1.0 to 1.5

1.5 to 2.0

0.5 to 1.0

1.5 to 2.0


1/4

3/8

1/2

5/8

Table 6-2-5 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

6.5

9.7

16.0

19.0

12.9

16.0

D

13

20

23

25

Flare nut width (mm)

17

22

26

29

– 15 –


1/4

3/8

1/2

5/8

3/4

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

Outer diameter

(mm)

6.35

9.52

12.70

15.88

19.05

Thickness

(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

9.2

C

6.5

D

13

13.5

16.0

19.0

24.0

9.7

12.9

16.0

19.2

20

20

23

34

Flare nut width

(mm)

17

22

24

27

36

45˚to 46˚

B A C D

43˚to 45˚

Fig. 6-2-2 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 6-2-7 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 6-2-7 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)

– 16 –

6-3. Tools

6-3-1. 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

Torque wrench

Gauge manifold

Charge hose

Vacuum pump adapter

Electronic balance for refrigerant charging

Refrigerant cylinder

Leakage detector

Charging cylinder

Usage

Pipe flaring

Flaring by conventional flare tool

Connection of flare nut

Evacuating, refrigerant charge, run check, etc.

Vacuum evacuating

Refrigerant charge

Refrigerant charge

Gas leakage check

Refrigerant charge

R410A air conditioner installation

Existence of new equipment for R410A

Whether conventional equipment can be used

Yes *(Note 1)

Yes

Yes

Yes

Yes

Yes

Yes

Yes

(Note 2)

*(Note 1)

×

×

×

×

×

×

×

Conventional air conditioner installation

Whether new equipment can be used with conventional refrigerant

¡

*(Note 1)

×

×

×

¡

×

¡

¡

Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.

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

General tools (Conventional tools can be used.)

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

4) Reamer 9) Hole core drill (Ø65)

1) Vacuum pump

Use vacuum pump by attaching vacuum pump adapter.

5) Pipe bender

6) Level vial

10) Hexagon wrench

(Opposite side 4mm)

2) Torque wrench

7) Screwdriver (+, –)

11) Tape measure

3) Pipe cutter

8) Spanner or Monkey wrench

12) Metal saw

Also prepare the following equipments for other installation method and run check.

1) Clamp meter

2) Thermometer

3) Insulation resistance tester

4) Electroscope

– 17 –

6-4. 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.

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.)

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

Never charge refrigerant exceeding the specified amount.

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

Do not carry out additional charging.

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

Closed

Open/Close valve for charging

Service port

Electronic balance for refrigerant charging

Fig. 6-4-1 Configuration of refrigerant charging

– 18 –

(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 ant cylinder

Refriger

Electronic balance

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. 6-4-2

6-5. Brazing of Pipes

6-5-1. 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.

– 19 –

6-5-2. 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

6-5-3. 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 m³/Hr or 0.02 MPa (0.2kgf/ cm²) by means of the reducing valve.

After performing the steps above, keep the

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

Remove the flux completely after brazing.

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

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

From Nitrogen cylinder

Rubber plug

Nitrogen gas

– 20 –

Fig. 6-5-1 Prevention of oxidation during brazing

6-6. Tolerance of Pipe Length and Pipe Head

Pipe length

(One Direction)

Height

Difference

Model (RAV-)

Full length

L + a or L + b

Branch piping a, b

Difference of branch piping length b – a, or a - b

Outdoor unit

– Indoor unit

H

Outdoor unit installed above Indoor unit

Outdoor unit installed below Indoor unit

Between Indoor units

∆ h

Remarks

1102AT

Below 50m

(actual length)

Below 15m

(actual length)

Below 10m

Below 30m

Below 15m

Below 0.5m

Less than 10 bends

Indoor unit B

Indoor unit A b

Branch pipe a

L

H

Outdoor unit

CAUTION

When planning a layout for Units A and B, comply with the following:

1. The lengths after branching (“a” and “b”) should be equal if feasible. Install Units A and B so that the difference of the branching lengths becomes less than 10m if the lengths cannot be equal due to the branch pipe position.

2. Install Units A and B on the same level. If Units A and B cannot be installed on the same level, the difference in level should be limited to 0.5m or less.

3. Be certain to install Units A and B in the same room.

Units A and B cannot be operated independently each other.

– 21 –

6-7. Additional Refrigerant Amount

<Formula for Calculating Additional Refrigerant Amount>

Do not remove the refrigerant even if the additional refrigerant amount becomes minus result as a result of calculations by the following formula and operate the air conditioner as it is.

Additional refrigerant amount (kg) = Main piping additional refrigerant amount (kg)

+ Branch piping additional refrigerant amount (kg)

= A × (L – 18) + B × (a + b – 4)

A : Additional refrigerant amount per meter of actual main piping length (kg)

B : Additional refrigerant amount per meter of actual branch piping length (kg)

L : Actual length of main piping (m) a, b : Actual length of branch piping (m)

Outdoor model

RAV-SM or RAV-SP

1102AT-E

Standard piping length

Main piping Branch piping

18 m 2 m

Additional refrigerant amount per Meter (kg/m)

A B

0.040

0.020

Indoor unit A

Indoor unit B

Outdoor unit

Branch piping b

Branch pipe a

Branch piping

H

L

Main piping

CAUTION

1. Be certain to wire the additional refrigerant amount, pipe length (actual length), head and other specification on the nameplate put on the outdoor unit for recording.

2. Seal the correct amount of additional refrigerant in the system.

– 22 –

6-8. Piping Materials and Sizes

Use copper tube of Copper and copper alloy seamless pipes and tubes, with 40mg/10m or less in the amount of oil stuck on inner walls of pipe and 0.8mm in pipe wall thickness for diameters for diameters 6.4, 9.5 and

12.7mm and 1.0mm, for diameter 15.9mm.

Never use pipes of thin wall thickness such as 0.7mm.

In parentheres ( ) are wall thickness

Model (RAV-SM or RAV-SP)

Pipe side

Gas side

Liquid side

Main piping

Branch piping

Main piping

Branch piping

1102AT-E

Ø15.9 (1.0)

Ø12.7 (0.8)

Ø9.5 (0.8)

Ø6.4 (0.8)

6-9. Branch Pipe

Now the refrigerant pipe is installed using branch pipes supplied as accessories.

• Bend and adjust the refrigerant piping so that the branch pipes and pipe after branching become horizontal.

• Fix the branch pipes onto a wall in a ceiling or onto a column.

• Provide a straight pipe longer than 500mm in length as the main piping of the branches.

OK

Horizontal

OK

Horizontal

Inclination

NO GOOG

Inclination

NO GOOG

– 23 –

7. CONTROL BLOCK DIAGRAM

7-1. Indoor Control Circuit

*1 Connection Interface is attached to master unit.

(In case of group control operation)

*2 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

Option

Function setup

Key switch

DC5V

Power circuit

CN2

CN1

* 2

LCD driver

Display

LCD

Weekly timer

CPU

Function setup

Key switch

DC5V

Power circuit

Secondary battery

Option

U4

U3

A B

Connection Interfase

(Option)

P.C. board

(MCC-1440)

TCC-LINK communication circuit

Duct type nothing

Louver motor

Drain pump

Indoor fan motor

DC280V

DC20V


Indoor control P.C. board

(MCC-1402)

EEPROM

DC5V

DC12V

Driver

CPU

Outside output

Run

Warning Ready

Thermo. ON

Cool/Heat Fan

CPU

Fan motor control circuit

AC synchronous signal input circuit

TA sensor

TC sensor

TCJ sensor

Float input

Separately sold parts for Ceiling type

Serial send/receive circuit

Power circuit

1 2 3

1 2 3

Outdoor unit Power circuit

DC5V

Buzzer

Wireless remote controller kit

Receiver P.C. board


Temporary operation SW

CPU

Function setup SW

Receive circuit Display LED

#2

A B

#3

A B

Same as the left

* 1

1 2 3

Same as the left

* 1

1 2 3

Outdoor unit

Outdoor unit

– 24 –

7-2. 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.

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

– 25 –

No.

3

Item

Room temperature control


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

Wired type

Wireless type

COOL/

DRY

18 to 29

18 to 30

Heating operation

18 to 29

16 to 30

Auto operation

18 to 29

17 to 27

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

0 2 4 6 Setup data

Setup temp.

compensation

+0°C +2°C +4°C +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.

– 26 –

No.

5

Item Outline of specifications

Air speed selection

(Continued)

<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>

COOL

UL

L

L+

Standard

HEAT

UL

L

L+

M

M+

H

M

M+

H

High ceiling

COOL HEAT

UL

L

L+

M+,M

UL

L

L+

M+,M

Tap

F6

F5

F4

F3

F2

F1

FD

FD

FB

FA

F9

F8

F7

SM562

Revolutions per minute (rpm)

320

320

330

350

360

370

400

410

420

440

480

530

580 H H

Tc: Indoor heat exchanger sensor temperature

Remarks

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

– 27 –

No.

6

Item

Cool air discharge preventive control

Outline of specifications Remarks

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.

– 28 –

No.

9

Item

Drain pump control


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 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])

– 29 –

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>

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.

– 30 –

No.

Item

14 Central control mode selection

15 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-AMT31E

[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)

[ ] goes on.

[ ] 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 [ ] /

[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)

+4

Normal control 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 figure if To > 15°C.

Ta(˚C)

Tsh

–3

Max. frequency is restricted to approximately the rated heating frequency

–4

Normal control

17 DC motor 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]

– 31 –

Microcomputer operation LED Filter/Option error input EEPROM Connection interface

DC fan output

DC fan return

Float SW

Fan output TCJ sensor

EXCT

HA (T10)

TA sensor

Optional output

Louver

(Used only for 4-way Air Discharge Cassette Type, Under Ceiling type)

DISP

CHK

Used for servicing TC sensor

Remote controller inter-unit cable

Indoor/Outdoor inter-unit cable

Optional power supply

Remote controller power supply LED

*1

Drain pump output

8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS

8-1. Indoor Control Circuit

8-1-1. Outline of Main Controls

1. Pulse Motor Valve (P.M.V.) control

1) PMV is controlled 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 SM562 in both cooling and heating operations.

CAUTION

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 P.M.V. 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]

SM562 a

117 b

112 c

108 d

105 e

98

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

[A]

I1

1–0.5

Frequency down

Hold

Hold

Normal operation

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.

SM562

Objective model

I1 value [A]

COOL

9.22

HEAT

11.93

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

– 33 –

8-1-2. 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.

CN60

CN80

CN70

CN71

CN72

CN73

1

2

3

1

1

2

1

2

1

2

Pin

No.

1

2

3

4

5

6

2

Specifications

DC12V (COM)

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.

DC12V (COM)

DC12V (COM)

Outside error input

Filter/Option/Humidifier setup input

0V

Check mode input

0V

Display mode input

0V

Demand input

0V

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

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

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)

Forced thermo-OFF operation in indoor unit

– 34 –

9. TROUBLESHOOTING

9-1. 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 a) The following operations are normal.

1. 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?

2. Indoor fan does not rotate.

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

3.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?

4. 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.) b) Did you return the cabling to the initial positions?

c) 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.

– 35 –

<Wireless remote controller type>

1. Before troubleshooting

1) Required tools/instruments

• + and – screwdrivers, spanners, radio cutting pliers, nippers, etc.

• Tester, thermometer, pressure gauge, etc.

2) Confirmation points before check a) The following operations are normal.

1. 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?

2. Indoor fan does not rotate.

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

3) 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?

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

• Is not forced operation performed?

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

• Is not automatic address being set up?

a) Did you return the cabling to the initial positions?

b) 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.)

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

Confirmation of lamp display

Trouble

→

(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.

– 36 –

9-2. Check Code List

Error mode detected by indoor and outdoor units ¥

: Flash,

¡

: Go on, l

: Go off

Wireless sensor lamp display

Wired remote controller

Operation Timer Ready Check code

¥ l

¥

¥

¥

¥ l

¥

¥

¥ l l l l l l

E18

¥ ¥

¥ ¥ l

F01 l

F02

¥ ¥ ¡

F04

¥ ¥ ¡

F06

¥ ¥ ¡

¥ ¥

¥ ¥

F08 l

F10 l

F29 l l

H01

¥ l

¥ l l l

E03

E04

E08

E10

H02 l ¥ l

H03 l ¥

L03 l ¥

L07 l ¥

L08

Diagnostic function

Cause of operation

Status of air conditioner

Condition

Judgment and measures

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

Duplicated indoor unit addresses

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

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 outdoor temperature sensor

(TD)


(TE/TS)


(TO)

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

Indoor EEPROM error

• EEPROM access error

Breakdown of compressor

• Displayed when error is detected

Compressor does not rotate.

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

Current detection circuit error

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

• Phase of power supply is missed.

Duplicated indoor master units

There is group line in individual indoor units.

Stop

(Automatic reset)

Displayed when error is detected

S top

(Automatic reset)


Stop

Stop

(Automatic reset)


Stop

(Automatic reset)


Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

Stop

Stop

Stop

Stop

Stop





Operation continues.


Stop

(Automatic reset)


Stop

(Automatic reset)

Stop








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. Check cables of remote controller.

2. Check power cables of indoor unit.

3. Check indoor P.C. board.

1. Check cables of remote controller.

2. Check indoor power cable.


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


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


1. Check outdoor temperature sensor (TD).

2. Check outdoor CDB P.C. board.

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


1. Check outdoor temperature sensor (TO).


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


1. Check indoor EEPROM. (including socket insertion)


1. Check power voltage. AC200V ±20V

2. Overload operation of refrigerating cycle

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)

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 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)

Unsetting of indoor group address

Stop


¥

: Flash,

¡

: Go on, l

: Go off


Operation Timer Ready Check code

¥ l l ¥

L09

¥

¥ ¡ ¥

¥ ¡ ¥

¥

¥ l l

¥

¥

¥

¥

¥

No check code is displayed.

l l

¥

¥ l l l l l l

¥

¥

¥

¥

¥

¥

¥

¥

¥


L29

L30

L31

P03

P04

P10

P12

P19

P22

P26

P29

P31




Condition


Unset indoor capacity

Stop


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

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)

Abnormal outside interlock input

Stop


1. Check cables of CDB and IPDU.

2. Abnormal overload operation of refrigerating cycle

Phase detection protective circuit operates. (Normal models)

Fan motor thermal protection

Discharge temperature error

• Discharge temperature over specified value was detected.

High-pressure protection error by TE sensor

(Temperature over specified value was detected.)

Float switch operation

• Disconnection, coming-off, defective float switch contactor of float circuit

Indoor DC fan error

Error in 4-way valve system

• Indoor heat exchanger temperature lowered after start of heating operation.

Outdoor DC fan error

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

Short voltage of main circuit operates.

IPDU position detection circuit error

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

Stop

Stop


Operation continues.

(Compressor stops.)



1. Check outside devices.


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

2. Check outdoor P.C. board.

1. Check thermal relay of fan motor.


Stop

Stop

Stop



1. Check refrigerating cycle. (Gas leak)

2. Trouble of PMV

3. Check Td sensor.

1. Overload operation of refrigerating cycle

2. Check outdoor temperature sensor (TE).



1. Defect of drain pump

2. Clogging of drain pump

3. Check float switch.


Stop

Stop

(Automatic reset)

Stop

Stop

Stop

Stop (Sub unit)

(Automatic reset)



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. Defective detection of position

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

3. Lock of outdoor fan




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


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

¥

: Flash,

¡

: Go on, l

: Go off


Operation Timer Ready

—

¥

¥

¥

¥

— l l l

¡

— l l l

¥


E01

E02

E09

L20

No communication with indoor master unit

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

(Detected at remote controller side)

Signal sending error to indoor unit


Multiple master remote controllers are recognized.


Duplicated indoor central addresses on communication of central control system

(Detected by central controller side)



Check code

No check code is displayed.

(Remote controller does not operate.)

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.


Stop

Stop

(Sub unit continues operation.)

Stop

(Automatic restart)

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.

Stop

(Automatic restart)

* When there is center, operation continues.


Signal receiving of remote controller is defective.

1. Check remote controller inter-unit cables.

2. Check remote controller.

3. Check indoor power cables.


Stop

(Automatic restart)

* When there is center, operation continues.


Signal sending of remote controller is defective.

1. Check sending circuit inside of remote controller.

: Replace remote controller.


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. (DN = 03)

Error mode detected by central remote controller


Operation Timer Ready

— — —

— — —


Check code

C05


Sending error central remote controller

Receiving error in central remote controller

C06



Operation continues

Operation continues

— — — P30

Differs according to error contents of unit with occurrence of alarm.

Continuation/Stop

(Based on a case)

¥

: Flash,

¡

: Go on, l

: Go off


Condition



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

2. Check communication. (U3, U4 terminals)

3. Check network adapter P.C. board.

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

5. Terminal resistance check (connection interface SW01)


Check the check code of corresponding unit by remote controller

9-3. Error Mode Detected by LED on Outdoor P.C. Board

RAV-SM562AT-E / RAV-SP562AT-E

<SW801: LED display in bit 1, bit 2 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.

CDB side

IPDU side

No.

6

7

4

5

1

2

3

8

9

10

11

12

13

14

15

Item

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

EEPROM error

Communication error between IPDU

(No abnormal stop)

IGBT short-circuit protection

Detection circuit error

Current sensor error

Comp. lock error

Comp. breakdown

¡

: Go on l

: Go off

¥

: Flash (5Hz)

P04

—

—

P26

P29

H03

H02

H01

Check code

Type A

F06

F04

F06

F08

P03

P22

L29

D800

(Red)

¡

¡ l l l

¡

¡ l

¡ l

¥ l

¥ l

¥

LED display

D801

(Yellow) l

¡ l

¡

¡

¡ l

¡

¡ l l

¥

¥ l l l l l

¥

¥ l l l

¡

D802 D803

(Yellow) (Yellow) l l

¡ l

¡

¡ l l l l l l

¡

¡

¡

¡ l l l l l

<<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-AMT31E, RBC-AS21E, and wireless remote controller kit such as TCB-AX21U (W)-E2

– 40 –

9-4. Troubleshooting Procedure for Each Check Code

9-4-1. Check Code

[E01 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]

Are two remote controllers set without master unit?

NO

YES

Correct as a master unit/a sub unit

(Remote controller address connector)

Check remote controller P.C. board.

Defect ® Replace

– 41 –

[E04 error]

Does outdoor unit operate?

YES

NO

NO

Is setup of group address correct?

YES

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

YES

NO

Check item code [14].

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

YES

Does case thermo. operate?

NO


Defect ® Replace

Check outdoor P.C. board

Defect

®

Replace

MCC-5009

MCC-1531 and MCC-1438

RAV-SM562AT-E

RAV-SP562AT-E

Check/Correct charged refrigerant amount.

– 42 –

[E10 error]

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

Defect ® Replace

[E18 error]

Is inter-unit cable of A and B normal?

YES

NO

Correct inter-unit cable of remote controller.

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


Check circuit cables.

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]

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]

Is capacity of indoor unit unset?

NO

YES

Set capacity data of indoor unit.

(Setup item code (DN) = 11)


Defect ® Replace

– 43 –

[L20 error]

Are cable connections to communication line U3, U4 normal?

YES

NO

YES

Are not multiple same central control network addresses connected?

NO

Check central controller (including connection interface) indoor P.C. board.

Defect ® Replace.

Correct cable connection

Correct central control network address.

[L30 error]

Are outside devices of connector CN80 connected?

YES

Do outside devices normally operate?

YES

Check operation cause.

NO

NO


Defect ® Replace

Check outside devices.

Defect ® Replace

[P10 error]

Is connection of float switch connector

(Indoor control P.C. board CN34) normal?

YES

NO

Does float switch operate?

YES

NO

Is circuit cabling normal?

YES

NO

Does drain pump operate?

YES

Check drain pipe, etc.

NO


Is power of drain pump turned on?

YES

NO

Check and correct cabling/wiring.


Defect

®

Replace


Defect ® Replace

Replace drain pump.

Check cabling.

[F10 error]

Is connection of TA sensor connector

(indoor P.C. board CN104) normal?

YES

NO

NO

Are characteristics of TA sensor resistance value normal?

YES

* Refer to Characteristics-1.


Replace TA sensor.


Defect ® Replace

– 44 –

[P12 error]

<Only for 4-way air discharge cassette type models>

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).


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

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

Replace indoor fan motor.

NO


*

1

• Are not coil windings between (Red lead) and (White lead), between (White lead) and (Black lead), between

(Black lead) and (Red lead) opened or shorted?

®

For resistance, see the following values.

RAV-SM562, SM802, SM1102, SP562, SP802, SP1102

®

Approx. 70 to 100

W

RAV-SM1402, SP1402

®

Approx. 35 to 50

W

• Is not earthed between cabinet and 1, 3, 5

®

10M

W

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 W

NO


*

3

Check fan motor position detection signal.

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.

CN333

Check indoor P.C. board

(MCC-1402).

Defect ® Replace

CN334

– 45 –

[P22 error]

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 W for 40 W motor (ICF-140-40) and 25 to 55 W for 60 W motor (ICF-140-60-1) is normal.

Between (Red lead) and (White lead) of motor winding of connector (CN301)

YES

NO

The status that there is

5k to 20kW resistance values between of motor position detection of connector (CN300) is normal.

YES

NO

CN301,

*

CN303

CN300

CN300 : Motor coil winding

CN301 : Motor position detection

*

CN301, CN303 : Motor coil winding

CN300, CN302 : Motor position detection

SP562AT-E

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

Single phase

RAV-SM562AT-E

Control P.C. board

RAV-SP562AT-E

CDB P.C. board

CN300

CN301

CN301

CN300

– 46 –

[P19 error]

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

Check CDB P.C. board.

Defect ® Replace

* For RAV-SM562AT-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]

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

– 47 –


Replace TC sensor.

[F01 error]

Is connection of TCJ sensor connector

(Indoor P.C. board CN102) normal?

YES

NO


TCJ sensor resistance value normal?

YES

NO



(MCC-1402).

Defect ® Replace


Replace TCJ sensor.

[P26 error]

Is power voltage normal?

YES

NO

Improve the power supply line.

YES

Are connections of cabling/connector normal?

YES

NO

* For RAV-SM562AT-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-SM562AT-E.

NO

Replace IPDU.

Is not AC fuse fused?

NO

* Replace control P.C. board of RAV-SM562AT-E.

Replace IPDU.

* Replace control P.C. board of RAV-SM562AT-E.

Is compressor normal?

YES

NO

Check IPDU.

Defect ® Replace

Check rare short of compressor trouble.

Defect ® Replace

– 48 –

[P29 error]

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

W ?)

NO

YES

YES

Is not winding opened?

NO

Check and correct circuit cabling such as cabling to compressor.

Compressor error

Compressor error

Compressor error

®

®

®

Replace

Replace

Replace

Check IPDU P.C. board.

Defect ® Replace

* For RAV-SM562AT-E, replace control P.C. board.

[H03 error]

Are cablings of power and current sensor normal?

YES

Check IPDU.

Defect ® Replace

NO



– 49 –

[F06 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-SM562AT-E, CN600 TE sensor and CN603 TS sensor)

NO

Replace TE and TS sensors.

Check CDB.

Defect

®

Replace


[F04 error]

Is connection of TD sensor connector of CDB CN600 normal?

YES

NO

* (For RAV-SM562AT-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]

Is connection of TO sensor connector of CDB CN601 normal?

YES

NO

* (For RAV-SM562AT-E, CN602 TO sensor)

NO

Are characteristics of TO sensor resistance value normal?

YES


Replace TO sensor.

Check CDB.

Defect ® Replace


– 50 –

[L29 error]

In the case of SUPER DIGITAL INVERTER

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

Improve and eliminate the cause.

YES

Is there no abnormal overload?

NO

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

YES


NO

NO

YES

Correct mounting.


Defect

®

Replace

Improve power line.

And power on once again.

In the case of DIGITAL INVERTER

NO


YES

NO


YES

Improve power line.

And power on once again.

Fault of compressor.

Check rare short

Defect ® Replace


Defect ® Replace

[H02 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

Does electron expansion valve normally operate?

YES

NO

NO

Check IPDU and CDB.

Defect ® Replace

Compressor lock ® Replace

Check TE and TS sensors. ® Replace

Check electron expansion valve. ® Replace


– 51 –

[P03 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]


YES

Is not abnormal overload?

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


– 52 –

[P04 error]

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

NO

Does PMV normally operate?

YES

Is fan motor normal?

YES

Check TE, TC, TS sensors.

Replace electron expansion valve.

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


– 53 –

[C06 error] (Central controller)

NO

Is U3, U4 communication line normal?

YES

Correct communication line.

Are connections between connectors

CN51 of connection interface P.C. board and connectors CN51 of indoor P.C. board 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

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.

Correct power cable.

Turn on the source power supply.

Clear the check code.

Eliminate noise, etc.

Check central controller.

Defect ® Replace

NO

Can handy remote controller control normally other indoor units?

YES


Defect

®

Replace

Check connection interface P.C. board.

Defect

®

Replace

– 54 –

[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.)

– 55 –

9-4-2. Relational Graph of Temperature Sensor Resistance Value and Temperature

Resistance

(k

W

)

10

20

0

10 20

40

TA sensor

Caracteristics-1

30

Resistance

(k W )

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

W

)

(10˚C or lower)

100

Resistance

(k

W

)

(10˚C or higher)

10

0

200

-10 0 10 20 30 40

Temperature [˚C]

50 60 70

0

TD sensor


Resistance

(k W )

(50˚C or lower)

100

20

Resistance

(k

W

)

(50˚C or higher)

10

0 0

50

Temperature [˚C]

100

– 56 –

10. 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

ò

Replace service P.C. board & power ON *2

ò

Write the read data to EEPROM *3

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

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)

– 57 –

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

,

CL

, and

TEST

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 louver starts swinging if any.

2. Every pushing

UNIT

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.

4. First change the item code (DN) from

10

to

01

.

3

(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

FF

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

7. After finishing making a note, push

TEST

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

Type

Contents

Indoor unit capacity

Line 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.

13 Indoor address

14 Group address

Notes)

When replacement

MCC-1402-07 Set Short-circuit-plug on the same position as the P. C. board to replace.

CN34

If short-circuit-plug is inserted in

CN34 of the P. C. board to replace, re-use it in service P. C. board.

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. (See Appendix 1, page 4)

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

(

1

SET

,

CL

, and

TEST

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

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.

– 58 –

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

,

CL

, and

TEST

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 louver starts swinging if any.

2. Every pushing UNIT 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 button. (OK when the display goes on.)

7) Push

TEST

button to return the status to usual stop status.

6

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

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

button. (OK when the display goes on.)

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.

10. After completion of setup, push

TEST

button to return the status to the usual stop status.

6

(Approx. 1 minute is required to start handling of

* the remote controller.)

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

CL

button if the item code (DN) was not yet changed.

3

4

6

<Remote controller>

SET DATA

TEMP.

FILTER

RESET TEST

TIMER SET

TIME

SET CL

UNIT No.

R.C.

No.

FAN

SWING/FIX

UNIT

ON / OFF

MODE

VENT

5

1 2

– 59 –

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

Memo

2E

32

5d

28

2A

2b

60

8b

11

12

13

06

0F

10

14

19

DN

01

02

03

1E

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

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

0014

Type

Compact 4-way cassette

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

Abbreviated name

RAV-SM562MUT-E

Indoor unit capacity

Item code [11]

Setup data

0009

Type

Compact 4-way cassette

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

Abbreviated name

RAV-SM562MUT-E

– 60 –

11. SETUP AT LOCAL SITE AND OTHERS


11-1-1. Test Run Setup on Remote Controller

RAV-SM562MUT-E

<Wired remote controller>

1. When pushing

TEST

button on the remote controller for 4 seconds or more, “TEST” is displayed on LC display.

Then push

ON / OFF

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

TEST

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>

1. Remove a screw which fixes the serial olate of the receiver part on the wireless remote controller.

Remove the nameplate of the reciver section by inserting a minus screwdriver, etc. into the notch at the bottom of the plate, and set the Dip switch to [TEST RUN ON].

2. Execute a test operation with button on the wireless remote controller.

• , and LED flash during test operation.

• Under status of [TEST RUN ON], the temperature adjustment from the wireless remote controller is invalid.

Do not use this method in the operation other than test operation because the equipment is damaged.

3. Use either [COOL] or [HEAT] operation mode for test operation.

• The outdoor unit does not operate approx. 3 minutes after power-ON and operation stop.

4. After the test operation finished, stop the air conditioner from the wireless remote controller, and return Dip switch of the sensor section as before. (A 60 minutes timer clearing function is attached to the sensor section in order to prevent a continuous test operation.)

Receiver unit

Spacer

M4 × 25 screw

(2 pieces)

Small screw

Notch

Nameplate

– 61 –

<In case of wireless remote controller>

Procedure

1

Description

Turn on power of the air conditioner.

The operation is not accepted for 5 minutes when power has been turned on at first time after installation, and 1 minute when power has been turned on at the next time and after. After the specified time has passed, perform a test operation.

2

3

4

5

6

7

Push [Start/Stop] button and change the operation mode to [COOL] or [HEAT] with [Mode] button.

Then change the fan speed to [High] using [Fan] button.

Test cooling operation Test heating operation

Set temperature to [18°C] using [Temperature set] button.

Set temperature to [30°C] using [Temperature set] button.

After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately push [Temperature set] button to set to [19°C] push [Temperature set] button to set to [29°C].

After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately push [Temperature set] button to set to [18°C].

push [Temperature set] button to set to [30°C].

Then repeat the procedure

4 → 5 → 4 → 5

.

After approx. 10 seconds, all the display lamps on the sensor part of wireless remote controller,

[Operation] (Green), [Timer] (Green), and [Ready] (Yellow) flash and the air conditioner starts operation.

If the lamps do not flash, repeat the procedure

2

and after.

After the test operation, push [Start/Stop] button to stop the operation.

<Outline of test operation from the wireless remote controller>

Test cooling operation:

Start

→

18°C

→

19°C

→

18°C

→

19°C

→

18°C

→

19°C

→

18°C

→

(Test operation)

→

Stop

Test heating operation:

Start

→

30°C

→

29°C

→

30°C

→

29°C

→

30°C

→

29°C

→

30°C

→

(Test operation)

→

Stop

Be sure to set the air speed to [High]

2 3, 4, 5, 6

2, 7

– 62 –

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

DN Item

01 Filter sign lighting time

02 Dirty state of filter

03 Central control address

06 Heating suction temp shift

0F Cooling only

10 Type

11 Indoor unit capacity

12 Line address

13 Indoor unit address

14 Group address

0000 : None

Description

0002 : 2500H (4-Way/Duct/Ceiling Type)

At shipment

0002 for D.I. and S.D.I.

models

0000 : Standard 0000 : Standard

0001 : High degree of dirt (Half of standard time)

0001 : No.1 unit

0099 : Unfixed to 0064 : No.64 unit

0000 : No shift

0002 : +2°C to

0099 : Unfixed

0001 : +1°C

0010 : -10°C

(Up to recommendation + 6)

0002 : +2°C

(Floor type 0000: 0°C)

0000 : Heat pump

0001 : Cooling only (No display of [AUTO] [HEAT])

0014 : SM562MUT-E

0000 : Shared for cooling/heating

According to model type

0009 : 562 type

0015 : 1102 type

According to capacity type 0000 : Unfixed

0012 : 802 type

0017 : 1402 type

0001 : No.1 unit to

0001 : No.1 unit to

0000 : Individual

0002 : Sub of group

0030 : No.30 unit

0064 : No.64 unit

0001 : Master of group

0099 : Unfixed

0099 : Unfixed

0099 : Unfixed

19

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

→

HEAT, HEAT

→

COOL

28 Automatic restart of power failure

2A Option

2b

2E

Thermo output selection

(T10 )

Option

30 Option

31 Option

32 Sensor selection

33 Temperature indication

40 Option

5d High ceiling selection (Air volume selection)

60 Timer set

(Wired remote controller)

8b Correction of high heat feeling

0000 : 0 deg to 0010 : 10 deg

(For setup temperature, reversal of

COOL/HEAT by ± (Data value)/2)

0000 : None 0001 : Restart

0000 : Indoor thermo ON

0001 : Output of outdoor comp-ON receiving

0000 : Body TA sensor 0001 : Remote controller sensor

0000 : °C (celsius) 0001 : °F (Fahrenheit)

0000 : Standard (Below 3.2m)



0000 : Available (Operable)

0001 : Unavailable (Operation prohibited)

0000 : None 0001 : Correction

0003 : 3 deg

(Ts±1.5)

0000 : None

0002 : Default

0000: Thermo. ON

0000 : Default

0000 : Default

0000 : Default

0000 : Body sensor

0000 : °C

0003 : Default

0000 : Standard

0000 : Available

0000 : None

– 63 –

11-1-2. 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 controllers

<Wired remote controller>

How to set wired remote controller as sub remote controller

Change DIP switch inside of the rear side of the remote controller switch from remote controller master to sub. (In case of RBC-AMT31E)

Remote controller (Inside of the rear side)

Remote controller switch (Master)

Remote controller switch (Sub)

Sold separately

A B

Sold separately

A B

1 2

Sub remote

controller

Master remote

controller

1 2

DIP switch

A B

Indoor unit

1 2 3

Remote controller cables (Procured locally)

Terminal block for remote controller cables

1 2

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.)

– 64 –

11-1-3. 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

CL

+

TEST

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:

2

4

SET DATA

UNIT No.

R.C.

No.

TEMP.

ON / OFF

TIMER SET FAN

SWING/FIX TIME

FILTER

RESET TEST SET CL UNIT

MODE

VENT

1

<Operation procedure>

1 2 3 4

Returned to usual display

3

Indoor unit data

Item code

00

01

02

03

04

Data name

Room temp. (control temp.) *1

Room temp. (remote controller)

Room temp. (TA)

Heat exchanger temp. (TCJ)

Heat exchanger 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

UNIT pushing button to select the indoor unit to be monitored.

4

Pushing TEST button returns the display to usual display.

– 65 –

n Calling of error history

<Contents>

The error contents in the past can be called.

<Procedure>

1

Push CL + TEST 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

TEST

button returns the display to usual display.

2

3

SET DATA

TEMP.

UNIT No.

R.C.

No.

ON / OFF

TIMER SET

TIME

FILTER

RESET TEST SET CL

FAN

SWING/FIX

UNIT

MODE

VENT


1 2 3

Returned to usual display

1

<Requirement>

Do not push

CL

button, otherwise all the error histories of the indoor unit are deleted.

(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 OUT OUT

IN

1-1

IN

Master

2-1

IN

3-1

IN

4-1

IN

7-1

Max. 8 units

Remote controller

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.

– 66 –

11-2. Setup at Local Site / Others

Model name: TCB-PCNT30TLE2 and TCB-PX30MUE

11-2-1. TCC-LINK Adapter (For TCC-LINK Central Control)

1. Function

This model is an optional P.C. board to connect the indoor unit to TCC-LINK (Central controller).

2. Microprocessor Block Diagram

Indoor unit

TCC-LINK adapter P.C. board

Central controller

CN40

CN050

Indoor control

P.C. board

CN041

CN51

TCC-LINK communication circuit

Terminal resistance

Terminal block

(A, B)

Remote controller

SW01

MCC-1440 TCC-LINK

Communication units:

Total 64 units

Communication distance:

2km

3. Installation Procedure

1) Cut off the slit of bell mouth on the Air Conditioner unit (RAV-SM ✻✻✻ MUT-E) with nipper or a cutter for attaching the Connection Interface Kit.

Cutting off portion

(Shaded area)

After cutting off the slit of bell mouth on the unit, clear up the surface of the slit that there is no burr on the cutting edge.

2) Attach the Connection Interface Kit (TCB-PX30MUE) on the

Air Conditioner unit (RAV-SM ✻✻✻ MUT-E).

After insert the hook of the unit to the Connection Interface Kit hole, and then tighten a Cross slot screw (4 × 14).

– 67 –

Connection Interface Kit

Cross slot screw

3) Install the spacers and P.C. board that are attached to TCB-PCNT30TLE2, on the Connection Interface

Kit.

Spacers

(Attached to the TCB-PCNT30TLE2)

P.C. board

(Attached to the TCB-PCNT30TLE2)

4) Remove the 2P terminal block for the communication cable of the electric parts box on the unit, and then replace with the attached 4P terminal block for the communication wires.

a) Disconnect the lead wires on the 2P terminal block of the electric parts box from the Faston connector on the unit.

b) Replace the 2P connector with 4P connector on the terminal block.

c) Connect the lead wires that are disconnected as shown above steps a), to the 4P terminal block.

(A), (B) terminals

(Connecting for the Remote Controller)

CN41

(BLUE)

CN41

(BLUE)

5) Connect the connection cables attached to the electric parts block.

(U3), (U4) terminals

(For central control)

CN50

(WHITE)

CN51

CN41

(BLUE)

Connecting cable B Connecting cable A

– 68 –

Terminal

A B

U 3 U 4

1

1

3

3

1

1

Main P.C. B

MCC-1402

2

2

3 4 5

3 4 5

CN41

CN50

(WHITE)

1

1

2

2

3 4 5

3 4 5

CN51

Sub P.C. B

MCC-1440

CN40

Wiring diagram

6) Setting for Central Control

For Central Control setting, refer to the Installation Manual of the TCB-PCNT30TLE2.

7) After the installation work has been completed, install the Connection Interface Kit cover to the Connection Interface Kit tightened with the two screws (4 ×10).

Connection

Interface Kit cover

Screw (4 ×10)

Hook of

Connection Interface Kit

Screw (4 ×10)

4. TCC-LINK Wiring Connection

CAUTION

1) When controlling customized setup collectively, TCC-LINK adapter (This option) is required.

2) In case of group operation or twin/triple operation, the adapter is necessary to be connected to the main unit.

3) Connect the central control devices to the central control system wiring.

4) When controlling collectively customized setup only, turn on only Bit 1 of SW01 of the least line of the system address No. (OFF when shipped from the factory)

∗∗∗∗∗

In case of customized setup, the address is necessary to be set up again from the wired remote controller after automatic addressing.

Central control device

U1

U3

U2

U4


U1

U3

U2

U4

Central control devices: Max. 10 units

Refrigerant line 1

Outdoor unit

1 2 3

Caution 3

Refrigerant line 2

1 2 3

Refrigerant line 3

1 2 3

Refrigerant line 4

1 2 3

Indoor/outdoor inter-unit wire (AC230V serial)

Central control system wiring

Indoor unit

TCC-LINK adapter

U3 U4 1 2 3

A B

Caution 1

U3 U4

Maater unit

1 2 3

A B

Sub unit

1 2 3

A B

Remote controller

Caution 2

Remote controller wiring

Remote controller Remote controller

1 2 3

A B

Sub unit

U3 U4 1 2 3

Maater unit

A B

* Wiring for No.1 and 2 only

Remote controller

Group operation (Max. 8 units) Twin/Triple operation (Example of triple)

Indoor units in all refrigerant lines: Max. 64 units

[If mixed with multi model (Link wiring), multi indoor units are included.]

* However group sub units and twin/triple sub units of customized setup are not included in number of the units.

Sub unit

1 2 3

A B

– 69 –

5. Wiring Specifications

• Use 2-core with no polar wire.

• Match the length of wire to wire length of the central control system.

No. of wires

If mixed in the system, the wire length is lengthened with all indoor/outdoor inter-unit wire length at side.

• To prevent noise trouble, use 2-core shield wire.

2

Size

Up to 1000m: twisted wire 1.25mm

Up to 2000m: twisted wire 2.0mm

2

2

• Connect the shield wire by closed-end connection and apply open process (insulating process) to the last terminal. Ground the earth wire to 1 point at indoor unit side. (In case of central controlling of digital inverter unit setup)


U1 U2

Caution 2

CAUTION

1) Closed-end connection of shield wire (Connect all the connecting parts of each indoor unit)

2) Apply open process to the last terminal (insulating process).

3) Ground earth wire to 1 point at indoor unit side.

Caution 1


Caution 3

Outdoor unit

1 2 3 1 2 3 1 2 3 1 2 3

: TCC-LINK adapter

(This option)

Indoor unit U3 U4 1 2 3

A B

Master unit

U3 U4 1 2 3

A B

Sub unit

1 2 3

A B

1 2 3

Sub unit

U3 U4 1 2 3

Master unit

A B A B

Sub unit

1 2 3

A B

Remote controller Remote controller Remote controller

(Group operation)

Remote controller

Earth terminal

(Triple operation)

6. P.C. Board Switch (SW01) Setup

When performing collective control by customized setup only, the setup of terminator is necessary.

• Using SW01, set up the terminator.

• Set up the terminator to only the adapter connected to the indoor unit of least line address No.


U1

U3

U2

U4


U1

U3

U2

U4

Central control devices: Max. 10 units

Refrigerant line 1

Outdoor unit

1 2 3

Refrigerant line 2 Refrigerant line 3 Refrigerant line 4

Indoor unit

TCC-LINK adapter

U3 U4 1 2 3

A B

Remote controller

1 2 3 1 2 3

U3 U4

Master unit

1 2 3

A B

Sub unit

1 2 3

A B

Remote controller wiring


Group operation (Max. 8 units)

1 2 3

1 2 3

A B

Indoor/outdoor inter-unit wire (AC230V serial)


Sub unit

U3 U4

* Wiring for No.1 and 2 only

1 2 3

Master unit Sub unit

1 2 3

A B


Twin/Triple operation (Example of triple)

A B

Line address

SW01 Bit 1

SW01 Bit 2

Remarks

1

ON

OFF

Turn SW01 Bit 1 to ON.

2

OF

OFF

As status shipped from factory

(Reference) Setup contents of switch

SW01

Terminator

Bit 1

OFF

ON

OFF

ON

Bit 1

OFF

OFF

ON

ON

None

100

Ω

75

Ω

43

Ω

Remarks

4

OF

OFF

As status shipped from factory

(OFF at shipment from factory)

(OFF at shipment from factory)

Mixed with multi (Link wiring) at shipment from factory

Central control by digital inverter only

Spare

Spare

– 70 –

7. External View of P.C. Board

Terminator (SW01)

52

85

8. Address Setup

In addition to set up the central control address, it is necessary to change the indoor unit number.

(Line/Indoor/Group address).

For details, refer to TCC-LINK Adapter Installation Manual.

11-3. How to Set up Central Control Address Number

When connecting the indoor unit to the central control remote controller using TCC-LINK adapter, it is necessary to set up the central control address number.

• The central control address number is displayed as the line No. of the central control remote controller.

1. Setup from remote controller at indoor unit side

* If you use the network adapter P.C. board, it is effective only when No. 7 of setup switch SW01 on P.C.

board is turned off.

<Procedure> Perform setup while the unit stops.

1

Push

TEST

+

VENT

buttons for 4 seconds or more.

When group control is executed, first the unit No.

RLL

is displayed and 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

RLL

displayed status without pushing

UNIT

button.)

In case of individual remote controller which is not group-controlled, Line address and Indoor unit address are displayed.

2

Using temperature setup TEMP.

buttons, specify item code

03

.

3

Using timer time TIME buttons, select the setup data. The setup data is shown in the right table (Table 1).

4

Push SET button. (OK if display goes on.)

• To change the item to be set up, return to Procedure

2

.

5

Push TEST button.

The status returns to usual stop status.

SET DATA

(Fig.1)

UNIT No.

R.C.

No.

Setup data

0001

0002

0003

:

0064

0099

(Table 1)

Central control address No.

3

:

1

2

64

Unset (Setup at shipment from factory)

2

1

5

TEMP.

TIMER SET

TIME

FILTER

RESET TEST SET CL

FAN

SWING/FIX

UNIT

ON / OFF

MODE

VENT

3

1

4

– 71 –

12. ADDRESS SETUP

12-1. 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)

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

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

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)

– 72 –

12-2. 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)

12-2-1. 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

12-2-2. 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)

– 73 –

12-3. 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.

(Example of 2-lines cabling)

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

OUT OUT

1

Push

SET

+

CL

+ TEST 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.)

IN IN

5

(

←

Indoor unit address)


13


Line address

®

1

Indoor unit address

®

1

Group address

®

1

2

1

2

6

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

7

Push

SET

button. (OK when display goes on.)

8

9

(

←

Group address)


14


Using timer time / buttons, set

0000

to Individual,

0001

to Master unit, and

0002

to sub unit.

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

Group address

Individual : 0000

Master unit : 0001

Sub unit : 0002

In case of group control

10

Push SET button. (OK when display goes on.)

11

Push TEST button.

Setup completes. (The status returns to the usual stop status.)

2, 5, 8

END

11

SET DATA

UNIT No.

R.C.

No.

TEMP.

ON / OFF

TIMER SET

TIME

FILTER

RESET TEST SET CL

FAN

SWING/FIX

UNIT

MODE

VENT

3, 6, 9

4, 7, 10

1


1 2 3 4 5 6 7 8 9 10 11

END

– 74 –

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

ON / OFF

button if the unit stops.

2

Push

UNIT

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 unit numbers are also displayed every pushing button.

TEMP.

UNIT No.

TIMER SET

TIME

FILTER

RESET TEST SET CL

FAN

SWING/FIX

UNIT

ON / OFF

MODE

VENT

1

Operation

2


1 2 END

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

VENT

and

TEST

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

UNIT

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 TEST button to finish the procedure.

All the indoor units in the group control stop.

1

3

SET DATA

TEMP.

UNIT No.

R.C.

No.

TIMER SET FAN

SWING/FIX TIME

FILTER

RESET TEST SET CL UNIT


1 2 3

END

ON / OFF

MODE

VENT

2

– 75 –

13. DETACHMENTS


Ceiling panel: RBC-UM11PG(W)E

Preparing work:

1. Before work, be sure to stop the power supply of the air conditioner and turn off switch of the power supply breaker. (Otherwise an electric shock may be caused.)

2. Be sure to put on the gloves when working; otherwise an injury may be caused with parts sharp edges etc.

No.

1

Part name

Suction grille

Procedure

1. Detachment

1) Slide hooks (2 positions) of the suction grille to inner side, and then hang down the suction grille.

2) Take off the strap that connects the panel and the suction grille, and then lift up shaft of the suction grille to remove the suction grille.

Suction grille

Remarks

Ceiling panel

Hook of suction grille

Hook hole of ceiling panel

Hook of fall-preventive strap

2 Electric parts cover

2. Attachment

1) Hook shaft of the suction grille to the panel.

2) Hook strap of the suction grille to the original position of the panel.

3) Close the suction grille and slide the hooks outward to fix it.

1. Detachment

1) Perform work of procedure 1 -1.

2) Take off screws (Ø4 × 10, 3 pcs.) fixing the electric parts cover.

3) Remove the electric parts cover from the temporary hanging hook of the electric parts cover, and then open the cover.

2. Attachment

1) Close the electric parts cover and hook the cover hole to the temporary hanging hook.

2) Tighten the fixing screws. (Ø4 × 10, 3 pcs.)

Screws Temporary hanging hook

Screw

Unnecessary to remove this hook.

– 76 –

No.

3

Part name

Adjust corner cover

Procedure

1. Detachment

1) Perform work of procedure of 1 -1.

2) Turn clockwise screws (4 positions) at the suction port corner until adjust corner cover rises up.

NOTE)

When you work, keep the torque at below 12N•m.

Do not use an electric screwdriver; otherwise the mechanism of adjust corner cover may be damaged and not be removed.

3) Pull downward the risen-up part of adjust corner cover and remove it.

4) Remove the strap of adjust corner cover.

2. Attachment

1) Attach the strap of adjust corner cover to the panel, hook claws of adjust corner cover to the panel corner, and then push the opposite side into the panel.

2) Turn screws (4 positions) of the suction port corner counterclockwise until bump between adjust corner cover and panel disappears.

NOTE)

When you work, keep the torque at below 12N•m.

Do not use an electric screwdriver; otherwise the mechanism of adjust corner cover may be damaged and not be removed.

4 Ceiling panel

Remarks

Torque~12N·m

1 2

Torque~12N·m

2

1

3

1. Detachment

1) Perform works of procedure 1 -1-, 2 -1, and 3 -1.

2) Remove the flap connector (CN33, White,

5P) connected to the control P.C. board and then take off the lead wire from the clamp.

NOTE)

Remove the connectors after unlocking the lock of the housing.

Hanging section of tentative hook of ceiling panel

Push to remove

3) Take off screws (M5, 4 pcs.) fixing the ceiling panel.

4) Push the temporary bracket to inner side to remove the ceiling panel.

2. Attachment

1) Hook the panel to the temporary bracket of the drain pan of the main body.

Ceiling panel

NOTE)

The panel has directionality. Therefore mount the panel according to the temporary bracket and the bracket mounting position.

2) Tighten the fixing screws. (M5, 4 pcs.)

3) Connect flap connector of the ceiling panel to the connector

(CN33, White, 5P) of the control

P.C. board.

Cable clamp

Washer based screw

Temporary bracket

Drain piping corner

Temporary bracket

Hanging section of temporary bracket

CN33

– 77 –

No.

5

Part name

Control P.C.

board

Procedure Remarks

1. Detachment

1) Perform works of procedure 1 -1- and 2 -1.

2) Remove the connectors 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)

CN40 : Terminal block of crossover between inside and outside (5P, Black)

CN68 : Drain pump (3P, Blue)

CN67 : Terminal block of power supply (3P, Black)

CN101 : TC sensor (2P, Black)

CN102 : TCJ sensor (2P, Red)

CN104 : Room temp sensor (2P, Yellow)

CN333 : Fan motor power supply (5P, White)

CN334 : Fan motor position detection (5P, White)

NOTE)


Ferrite core for sensor lead

3) Unlock the lock of the card edge spacer (6 positions) and then remove the control P.C. board.

Drawing-out port of lead wire

2. Attachment

1) Fix the control P.C. board to the card edge spacer. (6 positions)

2) Connect the connectors as original before being removed in item 1.

Ferrite core for fan motor

NOTE)

For drawing of each wire and position of ferrite core, perform wiring same as those before removing. If there is incomplete drawing of wire, short or water leakage of the parts may be caused.

Fix the sensor lead wires with cord clamps (2 positions) so that it does not slacken at P.C. board side and draw wires as shown in the figure.

Cord clamp Tighten together the shield wires of the sensor lead wires and the remote controller.

Be careful that other sensor does not fall out.

Cord clamp

Arrow view E

Adhere on the transformer.

Turn up the sensor lead wires and fix surely with the cord clamp.

<Details of sensor lead wire drawing>

As shown in the figure, hook the sensor lead wires to claw of the piping cover and then pass them so that they are stored in the groove.

After mounting the piping cover, check each lead wire does not hit the liquid pipe.

<Details of piping cover assembly and mounting>

Please note the float SW lead wires are set at inner side of the fan motor lead wires.

E

Cord clamp

Turn up the fan motor lead wires and fix surely with the cord clamp.

(There should be no catching of lead wire by P.C. board.)

Clamp (yellow, gray, black) lead wires of the fan motor and arrange them as shown in the figure.

<Details of fan motor lead wire drawing>

– 78 –

No.

6

Part name

Electric parts box

Procedure Remarks

1. Detachment

1) Perform works of procedure 1 -1-and 2 -1.

2) Remove connectors of the lead wire connected to the following connectors of the control

P.C. board.

CN33 : Flap motor (5P, White)

CN34 : Float switch (3P, Red)

CN68 : Drain pump (3P, Blue)

CN101 : TC2 sensor (2P, Black)

CN102 : TCJ sensor (2P, Red)

CN333 : Fan motor power supply (5P, White)

CN334 : Fan motor position detection (5P, White)

NOTE)


3) Remove each lead wire from cord clamps in the electric parts box.

4) Remove the power supply wiring, remote controller wiring, and crossover wiring.

5) Take off screws

(Ø4 × 10, 2 pcs.)

Ferrite core for sensor lead

Drawing-out port of lead wire Ferrite core for fan motor

2. Attachment

1) Tighten screws (Ø4 × 10, 2 pcs.) fixing the electric parts box.

2) Connect the connectors as original before being removed in item 1.

3) Perform power supply wiring, remote controller wiring, and crossover wiring between inside and outside.

NOTE)

For drawing of each wire and position of ferrite core, perform wiring same as those before removing. If there is incomplete drawing of wire, short or water leakage of the parts may be caused.

Fix the sensor lead wires with cord clamps (2 positions) so that it does not slacken at P.C. board side and draw wires as shown in the figure.

Cord clamp Tighten together the shield wires of the sensor lead wires and the remote controller.

Be careful that other sensor does not fall out.

Cord clamp

Arrow view E

Adhere on the transformer.

Turn up the sensor lead wires and fix surely with the cord clamp.


As shown in the figure, hook the sensor lead wires to claw of the piping cover and then pass them so that they are stored in the groove.

After mounting the piping cover, check each lead wire does not hit the liquid pipe.

<Details of piping cover assembly and mounting>

Please note the float SW lead wires are set at inner side of the fan motor lead wires.

E

Cord clamp

Turn up the fan motor lead wires and fix surely with the cord clamp.

(There should be no catching of lead wire by P.C. board.)

Clamp (yellow, gray, black) lead wires of the fan motor and arrange them as shown in the figure.

<Details of fan motor lead wire drawing>

– 79 –

No.

7

Part name

Bell mouth

Procedure

1. Detachment


2) Take off the lead wires of the drain pump, float switch, and fan motor from the bell mouth.

3) Take off fixing screws of the bell mouth.

(Ø4 × 10, 4 pcs.)

2. Attachment

1) Mount the bell mouth with screws.

(Ø4 × 10, 4 pcs.)

2) Perform wiring as original before being removed.

NOTE)

Pinch lead wire of the drain pump and float switch with lead wire fixing claws of the bell mouth and perform wiring along the guide.

Remarks

Fixing claws for lead wires Bell mouth

4 screws Fixing claws for lead wires

8 Turbo fan 1. Detachment


2) Take off the nut (M6 nut 1 pc.) of the turbo fan.

NOTE)

Use a box wrench for attachment and detachment of the turbo fan. If using a monkey wrench etc, the other parts may be damaged in work.

2. Attachment

1) Insert the turbo fan into the fan motor so that boss of the turbo fan matches with cut surface of the fan motor, and then tighten it with nut.

NOTE)

Tightening torque of turbo fan: 5.9 ± 0.6N.m

Apply looseness-preventing agent to the nut after tightening.

Fan motor fixing

M6 nut

Drawing-out port of fan motor lead wire

Turbo fan

– 80 –

No.

9

Part name

Fan motor

Procedure

1. Detachment

1) Perform work of procedure 8 .

2) Take off screws fixed with lead holding bracket of the fan motor. (Ø4 × 10, 2 pcs.)

3) Open wiring holding part of the fan motor lead holding bracket and then take off the fan motor lead wire from the bracket.

4) Take off fixing nuts for the fan motor to remove the fan motor.(M 3 pcs.)

NOTE)

Use a box wrench for attachment and detachment of the fan motor fixing nuts; otherwise contact or damage for other parts may be caused.

Remarks

Fixing nut for fan motor

Fixing screw

2. Attachment

1) Mount the fan motor with the fixing nuts.

NOTE)

Tightening torque of turbo fan: 5.9 ± 0.6N.m

Apply looseness-preventing agent (as paints) to the nut after tightening.

2) Attach the fan motor lead wire holder.

NOTE)

• For the fan motor lead wire, fix the lead wire holding bracket along concave part of the ceiling panel. (There is no catch-in of lead wire and ceiling panel.)

• When fixing the lead wire bracket, tighten fan motor earth together with the lead wire.

• For this work, do not use an electric screwdriver.

• Take note the damage of earth terminal.

3) Bend the lead wire holding part and fix the fan motor lead wire.

NOTE)

Be sure that the lead wire does not come to contact with the heat exchanger.

Wiring holding bracket

Holding metal fitting for fan motor lead wire

– 81 –

Fan motor lead wire Concave part of ceiling panel

No.

10

Part name

Drain pan

Procedure

1. Detachment

1) Perform works of procedure 4 -1 and 7 -1.

2) Remove the drain cap and extract drain water accumulated in the drain pan.

NOTE)

When removing the drain cap, be sure to receive drain water with a bucket, etc.

3) Take off screws fixing the drain pan to remove the drain pan. (Ø4×10, 4 pcs.)

2. Attachment

1) Insert the drain cap into the drain pan.

NOTE)

Put a stick or others into hole at center of the drain cap, and then insert the drain cap until it strikes on the socket of the drain pan.

2) Draw each lead wire to the correct positions, and then insert the drain pan into the main unit.

NOTE)

Draw lead wires of the drain pump and the float switch along the guide of the cabinet. Insert the drain pan along the guides of sensors (TC1, TC2, TCJ) and PMV lead wire.

The drain pan and each lead wire are not caught in; otherwise water leakage may be caused.

3) Fix the drain pan with screws. (Ø4 × 10, 4 pcs.)

11 Drain pump assembly

1. Detachment


2) Pick up the hose band and slide it from the pump connecting part to remove the drain hose.

3) Take off screws (Ø4 × 10, 3 pcs.) fixing the drain pump assembly, and then move hooking claw (1 position) of the main body from the drain pump assembly to remove the drain pump assembly.

2. Attachment

1) Fix the drain pump assembly as original.

NOTE)

For fixing, use a hooking claw (1 position) and screws (3 positions).

When screwing, be sure not to run on the hooking claw at main body side.

2) Mount the drain hose and the hose band as original.

NOTE)

Insert the drain hose up to the end of pump connecting part, and then put the band at white marked position of the hose.

Piping holder

Remarks

2 screws

2 screws

Dr ain pan

Lead wire

– 82 –

No.

12

Part name

Heat exchanger

Procedure

1. Detachment

1) Recover refrigerant gas.

2) Remove the refrigerant pipe at indoor unit side.


4) Take off screws (Ø4 × 10, 3 pcs.) fixing the piping cover to remove the piping cover.

5) While holding the heat exchanger, remove fixing band and fixing screws (Ø4 × 10, 3 pcs.) and then remove the heat exchanger.

2. Attachment

1) Mount parts in order, heat exchanger

→

fixing band

→

piping cover

→

drain pan

→

bell mouth

→

electric parts box as original.

NOTE)

Arrange wires as original.

2) Attach the removed connectors and wires as original.

3) Connect the refrigerant pipe as original, and then perform vacuuming.

Remarks

3 screws

Fixing band Fixing band for heat exchanger


TCJ sensor

(Black)

TC sensor

(Red)

Wind pipe cover over the header, attach a sensor on it.

(Do not set the head of tie wrap upward.)

– 83 –

2 fixing screws for heat exchanger

14-1. Ceiling Panel

RBC-UM11PG(W)E

14. EXPLODED VIEWS AND PARTS LIST

308

302

315

316

307

314

309

311

304

306

310

313

305

303

301

312

Location

No.

Part No.

Description

301 43109414 Grille, Air Inlet

302 4302C059 Motor, Louver

303 43180332 Air Filter

304 43497012 Screw

305 43100322 Cover, Panel Ass’y

306 43107259 Grille, Catch

307 43122089 Cover, Joint (For Joint)

308 43122090 Cover, Joint (For Motor)

– 84 –

Location

No.

Part No.

Description

309 43122091 Joint, Kit (A)

310 43122092 Joint, Kit (B)

311 43122093 Louver

312 43107261 Outlet, Air Form

313 43100369 Panel

314 43107262 Fix, Motor

315 43107263 Fix, Motor

316 43160580 Lead, Motor

14-2. Compact 4-way Air Discharge Cassette Type

202

203

209

235

236

237

222

223

234

221

228

201

231

241

224

242

205

247

233

238, 239, 240

226

225

230

215

213

220

227

219 216 217

211

– 85 –

Location

No.

Part No.

Description

201 43120225 Fan Ass’y, Turbo

202 43122094 Bell Mouth

203 43172185 Pan Ass’y, Drain

205 43121738 Motor, Fan, SWF-230-60-1R

209 4314J329 Refrigeration, Cycle Ass’y

211 4314Q034 Distributor Ass’y

213 43047685 Nut, Flare, 1/4 IN

215 43149351 Socket, 1/4 IN

216 43047688 Nut, Flare, 1/2 IN

217 43149353 Socket, 1/2 IN

219 43147195 Bonnet, 1/2 IN

220 43049697 Bonnet

221 43170244 Hose, Drain

222 43079249 Band, Hose

223 43060029 Filter, Noise

224 43163052 Holder, Lead, Fan Motor

225 43119482 Cover Ass’y Body

226 43170248 Hose, Drain

227 43119483 Cover, Pipe

228 43097212 Nut

230 43019904 Holder, Sensor

231 43179135 Band, Hose

233 43139137 Rubber, Cushion

234 43162056 Cover, E-Box

235 43177001 Pump, Drain

236 43151289 Switch, Float

237 43179126 Rubber, Pump Drain

238 43166002 Remote Controller,

SX-A1EE


SX-A11JE2


EX-W2JE2


WH-H1JE2

242 4318T743 Owner’s Manual

247 43197155 Washer

– 86 –

402 401

405

403

Location

No.

Part No.

Description

401 43160565 Terminal Block, 3P,

AC250V, 20A,

402 43050425 Sensor Ass’y, Service

TC (F6)

403 43050426 Sensor, Service, TA

404 43160568 Terminal, 2P,

AC30V/DC42V, 1A

405 4316V280 P.C. Board Ass’y,

MMC-1402 (220V – 240V)

– 87 –

404

402

405

403

404

B

A

401

Location

No.

Part No.

Description

401 43160565 Terminal Block, 3P, 20A

402 43050425 Sensor, TC (F6)

403 43050426 Sensor, TA

404 43160568 Terminal Block, 2P,

1A, AC30V

405 4316V280 P.C. Board Ass’y, MMC-1402

– 88 –

WARNINGS ON REFRIGERANT LEAKAGE

Check of Concentration Limit

The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its concentration will not exceed a set limit.

The refrigerant R410A which is used in the air conditioner is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws to be imposed which protect the ozone layer. However, since it contains more than air, it poses the risk of suffocation if its concentration should rise excessively. Suffocation from leakage of R410A is almost non-existent. With the recent increase in the number of high concentration buildings, however, the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space, individual control, energy conservation by curtailing heat and carrying power etc.

Most importantly, the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual air conditioners. If a single unit of the multi conditioner system is to be installed in a small room, select a suitable model and installation procedure so that if the refrigerant accidentally leaks out, its concentration does not reach the limit (and in the event of an emergency, measures can be made before injury can occur).

In a room where the concentration may exceed the limit, create an opening with adjacent rooms, or install mechanical ventilation combined with a gas leak detection device.

The concentration is as given below.

Total amount of refrigerant (kg)

Min. volume of the indoor unit installed room (m³)

≤

Concentration limit (kg/m³)

The concentration limit of R410A which is used in multi air conditioners is 0.3kg/m³.

NOTE 1 :

If there are 2 or more refrigerating systems in a single refrigerating device, the amounts of refrigerant should be as charged in each independent device.

e.g., charged amount (10kg)

Outdoor unit e.g., charged amount (15kg)

Room A Room B Room C Room D Room E Room F

Indoor unit

For the amount of charge in this example:

The possible amount of leaked refrigerant gas in rooms A, B and C is 10kg.

The possible amount of leaked refrigerant gas in rooms D, E and F is 15kg.

Important

NOTE 2 :

The standards for minimum room volume are as follows.

(1) No partition (shaded portion)

(2) When there is an effective opening with the adjacent room for ventilation of leaking refrigerant gas (opening without a door, or an opening 0.15% or larger than the respective floor spaces at the top or bottom of the door).

Outdoor unit

Refrigerant piping

Indoor unit

(3) If an indoor unit is installed in each partitioned room and the refrigerant piping is interconnected, the smallest room of course becomes the object. But when a mechanical ventilation is installed interlocked with a gas leakage detector in the smallest room where the density limit is exceeded, the volume of the next smallest room becomes the object.

Refrigerant piping

Outdoor unit

Very small room

Indoor unit

Small room

Medium room

Large room

Mechanical ventilation device - Gas leak detector

NOTE 3 :

The minimum indoor floor area compared with the amount of refrigerant is roughly as follows:

(When the ceiling is 2.7m high)

40 m²

35

30

25

Range below the density limit of 0.3 kg/m³

(countermeasures not needed)

20

15

10

5

0

Range above the density limit of 0.3 kg/m³

(countermeasures needed)

10 20 30

Total amount of refrigerant kg

TOSHIBA CARRIER CORPORATION

2 CHOME 12-32, KONAN, MINATOKU, TOKYO, 108-0075, JAPAN

Copyright © 2005 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.

TOSHIBA RAV-SM562MUT-E split-system air conditioner Service Manual 90 Pages

TOSHIBA RAV-SM562MUT-E split-system air conditioner Service Manual

SERVICE MANUAL

SPLIT TYPE

<DIGITAL INVERTER>

INDOOR UNIT

This Service Manual describes contents of the new indoor unit.

For the outdoor unit, refer to the Service Manual with FILE NO. A05-001.

ADOPTION OF NEW REFRIGERANT

WARNING

– 2 –

1. SPECIFICATIONS

1-1-1. Compact 4-way Cassette Type

– 3 –

– 4 –

– 5 –

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

– 6 –

3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM

• Single type (Combination of one indoor unit and one outdoor unit)

• Twin type (Combination of two indoor units and one outdoor unit)

– 7 –

Indoor unit

Outdoor unit

– 8 –

Indoor unit

Outdoor unit

– 9 –

4. WIRING DIAGRAM

4-1-1. Compact 4-way Cassette Type

MCC-1402

Control P.C. Board for

Indoor Unit

B

A

B

A

1 2 3

1 2 3

L N

– 10 –

• Single type

• Twin type

– 11 –

5. SPECIFICATIONS OF ELECTRICAL PARTS

– 12 –

6. REFRIGERANT R410A

6-2-1. Piping Materials and Joints Used

– 13 –

6-2-2. Processing of Piping Materials

– 14 –

– 15 –

– 16 –

6-3-1. Required Tools

– 17 –

– 18 –

6-5-1. Materials for Brazing

– 19 –

6-5-2. Flux

6-5-3. Brazing

– 20 –

CAUTION

– 21 –

CAUTION

– 22 –

– 23 –

7. CONTROL BLOCK DIAGRAM

– 24 –

– 25 –

– 26 –

– 27 –

– 28 –

– 29 –

– 30 –

– 31 –

8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS

8-1-1. Outline of Main Controls

CAUTION

– 33 –

8-1-2. Indoor P.C. Board Optional Connector Specifications