Toshiba RAS-M10YKV-E User manual

SERVICE MANUAL

FILE NO. A00-9906

AIR-CONDITIONER

SUPPLEMENT

SPLIT TYPE

PRINTED IN JAPAN, Nov.,1999 ToMo

RAS-M10YKV-E, RAS-M13YKV-E

RAS-M18YAV-E

R AS-M10YKCV-E, RAS-M13YKCV-E

RAS-M18YACV-E

R410A

– 2 –

CONTENTS

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

2. REFRIGERANT R410A.............................................................................. 8

3. CONSTRUCTION VIEWS......................................................................... 16

4. WIRING DIAGRAM................................................................................... 18

5. SPECIFICATIONS OF ELECTRICAL PARTS.......................................... 21

6. REFRIGERANT CYCLE DIAGRAM......................................................... 22

7. CONTROL BLOCK DIAGRAM................................................................. 25

8. OPERATION DESCRIPTION ................................................................... 28

9. INSTALLATION PROCEDURE ................................................................ 41

10. HOWTO DIAGNOSE THE TROUBLE ...................................................... 49

11. HOWTO REPLACE THE MAIN PARTS ................................................... 69

12. EXPLODED VIEWS AND PARTS LIST.................................................... 80

– 3 –

1. SPECIFICATIONS

1-1. Specifications

RAS-M10YKV-E, RAS-M13YKV-E / RAS-M18YAV-E

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

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

Unit model Indoor

Outdoor

Current limited

Cooling capacity (kW)

Cooling capacity range (kW)

Heating capacity (kW)

Heating capacity range (kW)

Power supply

Electric Indoor Unit model

characteristics Running current (A)

Power consumption (W)

Power factor (%)

Outdoor Unit model

Operation mode

Running current (A)

Power consumption (W)

Power factor (%)

Starting current (A)

COP (Cooling/Heating)

Operating noise Indoor Unit model

High (dB•A)

Medium (dB•A)

Low (dB•A)

Outdoor Unit model

10-1 indoor unit operating (dB•A)

13-1 indoor unit operating (dB•A)

2 indoor unit operating (dB•A)

Indoor unit Unit model

Dimension Height (mm)

Width (mm)

Depth (mm)

Net weight (kg)

Fan motor output (W)

Air flow rate (Cooling/Heating) (m3/h)

Outdoor unit Unit model

Dimension Height (mm)

Width (mm)

Depth (mm)

Net weight (kg)

Compressor Motor output (W)

Type

Model

Fan motor output (W)

Air flow rate (m3/h)

Piping connection Type

Indoor unit Unit model

Liquid side

Gas side

Outdoor unit Unit model

A unit liquid side/gas side

B unit liquid side/gas side

Maximum length (per unit) (m)

Maximum length (total) (m)

Maximum chargeless length (m)

Maximum height difference (m)

Refrigerant Name of refrigerant

Weight (kg)

Wiring connection Power supply

Interconnection

Usable temperature range Indoor (Cooling/Heating) (°C)

Outdoor (Cooling/Heating) (°C)

Accessory Indoor unit Installation plate

Wireless remote control

Label

Remote control holder

Pan head wood screw

Purifying filter

Deodorizing filter

Batteries

Mounting screw

Installation manual

Outdoor unit Installation manual

Owner's manual

RAS-M10YKV-E, RAS-M13YKV-E

RAS-M18YAV-E

—

5,2

1,4 – 6,2

6,7

0,9 – 8,7

220 – 230 – 240V – 1Ph – 50 Hz

RAS-M10YKV-E RAS-M13YKV-E

0,15 0,15

30 30

87 87

RAS-M18YAV-E

Cooling Heating

7,90 / 7,57 / 7,28 8,55 / 8,17 / 7,81

1660 1790

95% 95%

9,86 / 9,43 / 9,04

3,02 / 3,62

RAS-M10YKV-E (Cooling

Heating) RAS-M13YKV-E (Cooling

Heating)

36 / 39 39 / 40

33 / 35 35 / 35

30 / 30 30 / 30

RAS-M18YAV-E (Cooling / Heating)

42 / 45

46 / 49

RAS-M10YKV-E RAS-M13YKV-E

265 265

790 790

189 189

19 19

470 / 520 520 / 560

RAS-M18YAV-E

550

780

270

1100

Twin rotary type with DC-inverter variable speed control

DA130A1F-21F

2060

Flare connection

RAS-M10YKV-E RAS-M13YKV-E

Ø6,35 Ø6,35

Ø9,52 Ø9,52

RAS-M18YAV-E

Ø6,35 / Ø9,52

R410A

1,15

3 Wires : includes earth

4 Wires : includes earth

21 – 32 / 0 – 28

21 – 43 / –5 – 21

2 (Ø3,1 x 16L)

6 (Ø4 x 25L)

– 4 –

RAS-M10YKCV-E, RAS-M13YKCV-E / RAS-M18YACV-E

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

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

Unit model Indoor

Outdoor

Cooling capacity (kW)

Cooling capacity range (kW)

Power supply

Electric Indoor Unit model

characteristics Running current (A)

Power consumption (W)

Power factor (%)

Outdoor Unit model

Running current (A)

Power consumption (W)

Power factor (%)

Starting current (A)

COP

Operating noise Indoor Unit model

High (dB•A)

Medium (dB•A)

Low (dB•A)

Outdoor Unit model

10-1 indoor unit operating (dB•A)

13-1 indoor unit operating (dB•A)

2 indoor unit operating (dB•A)

Indoor unit Unit model

Dimension Height (mm)

Width (mm)

Depth (mm)

Net weight (kg)

Fan motor output (W)

Air flow rate (m3/h)

Outdoor unit Unit model

Dimension Height (mm)

Width (mm)

Depth (mm)

Net weight (kg)

Compressor Motor output (W)

Type

Model

Fan motor output (W)

Air flow rate (m3/h)

Piping connection Type

Indoor unit Unit model

Liquid side

Gas side

Outdoor unit Unit model

A unit liquid side/gas side

B unit liquid side/gas side

Maximum length (per unit) (m)

Maximum length (total) (m)

Maximum chargeless length (m)

Maximum height difference (m)

Refrigerant Name of refrigerant

Weight (kg)

Wiring connection Power supply

Interconnection

Usable temperature range Indoor (°C)

Outdoor (°C)

Accessory Indoor unit Installation plate

Wireless remote control

Label

Remote control holder

Pan head wood screw

Purifying filter

Deodorizing filter

Batteries

Mounting screw

Installation manual

Outdoor unit Installation manual

Owner's manual

RAS-M10YKCV-E, RAS-M13YKCV-E

RAS-M18YACV-E

5,2

1,4 – 6,2

220 – 230 – 240V – 1Ph – 50 Hz

RAS-M10YKCV-E RAS-M13YKCV-E

0,15 0,15

30 30

87 87

RAS-M18YACV-E

7,90 / 7,57 / 7,28

1660

95%

8,20 / 7,87 / 7,58

3,02

RAS-M10YKCV-E RAS-M13YKCV-E

36 39

33 35

30 30

RAS-M18YACV-E

RAS-M10YKCV-E RAS-M13YKCV-E

265 265

790 790

189 189

19 19

470 520

RAS-M18YACV-E

550

780

270

1100

Twin rotary type with DC-inverter variable speed control

DA130A1F-21F

2060

Flare connection

RAS-M10YKCV-E RAS-M13YKCV-E

Ø6,35 Ø6,35

Ø9,52 Ø9,52

RAS-M18YACV-E

Ø6,35 / Ø9,52

R410A

1,15

3 Wires : includes earth

4 Wires : includes earth

21 – 32

21 – 43

2 (Ø3,1 x 16L)

6 (Ø4 x 25L)

– 5 –

1-2. Specifications of PerformanceWhen Each Indoor Unit is Combined with Other Unit

Operating Unit capacity Cooling Running Power Outdoor

indoor unit (kW) capacity current consumption

operating noise

ABAB kW A W dB

10 — 2,7 — 2,7 4,13 770 42

(1,1 to 3,2) (1,65 to 4,99) (255 to 930)

13 — 3,7 — 3,7 6,58 1240 46

(1,1 to 4,2) (1,65 to 7,25) (255 to 1430)

10 10 2,55 2,55 5,1 8,14 1700 46

(1,4 to 6,1) (1,68 to 10,29) (260 to 2150)

13 10 3,01 2,19 5,2 8,20 1720 46

(1,4 to 6,2) (1,68 to 10,38) (260 to 2170)

10 — 2,7 — 2,7 3,95 770 42

(1,1 to 3,2) (1,59 to 4,78) (255 to 930)

13 — 3,7 — 3,7 6,30 1240 46

(1,1 to 4,2) (1,59 to 6,94) (255 to 1430)

10 10 2,55 2,55 5,1 7,78 1700 46

(1,4 to 6,1) (1,62 to 9,84) (260 to 2150)

13 10 3,01 2,19 5,2 7,87 1720 46

(1,4 to 6.2) (1,62 to 9,93) (260 to 2170)

10 — 2,7 — 2,7 3,79 770 42

(1,1 to 3,2) (1,52 to 4,58) (255 to 930)

13 — 3,7 — 3,7 6,03 1240 46

(1,1 to 4,2) (1,52 to 6,65) (255 to 1430)

10 10 2,55 2,55 5,1 7,46 1700 46

(1,4 to 6,1) (1,55 to 9,43) (260 to 2150)

13 10 3,01 2,19 5,2 7,58 1720 46

(1,4 to 6,2) (1,55 to 9,52) (260 to 2170)

Volts Operation

Vstatus

1 unit

220

2 units

1 unit

230

2 units

1 unit

240

2 units

• The above specification values are those under the conditions

Cooling indoor : DB/WB=27/19°C Cooling outdoor : DB=35°C

Heating indoor : DB=20°C Heating outdoor : DB/WB=7/6°C

Operating Unit capacity Heating Running Power Outdoor

indoor unit (kW) capacity current consumption

operating noise

ABAB kW A W dB

10 — 4,0 — 4,0 6,94 1450 45

(0,7 to 5,2) (1,10 to 8,13) (170 to 1700)

13 — 5,0 — 5,0 9,86 2060 49

(0,7 to 6,5) (1,10 to 12,11) (170 to 2530)

10 10 3,2 3,2 6,4 8,47 1770 49

(0,9 to 8,3) (1,10 to 11,43) (170 to 2390)

13 10 3,72 2,98 6,7 8,85 1850 49

(0,9 to 8,7) (1,10 to 11,72) (170 to 2450)

10 — 4,0 — 4,0 6,64 1450 45

(0,7 to 5,2) (1,06 to 7,78) (170 to 1700)

13 — 5,0 — 5,0 9,43 2060 49

(0,7 to 6,5) (1,06 to 11,58) (170 to 2530)

10 10 3,2 3,2 6,4 8,10 1770 49

(0,9 to 8,3) (1,06 to 10,94) (170 to 2390)

13 10 3,72 2,98 6,7 8,47 1850 49

(0,9 to 8,7) (1,06 to 11,21) (170 to 2450)

10 — 4,0 — 4,0 6,36 1450 45

(0,7 to 5,2) (1,01 to 7,46) (170 to 1700)

13 — 5,0 — 5,0 9,04 2060 49

(0,7 to 6,5) (1,01 to 11,10) (170 to 2530)

10 10 3,2 3,2 6,4 7,76 1770 49

(0,9 to 8,3) (1,01 to 10,48) (170 to 2390)

13 10 3,72 2,98 6,7 8,11 1850 49

(0,9 to 8,7) (1,01 to 10,75) (170 to 2450)

Volts Operation

Vstatus

1 unit

220

2 units

1 unit

230

2 units

1 unit

240

2 units

– 6 –

1-2-2. Cooling Capacity Variation Ratio According toTemperature

1-2-1. Operation Characteristic Curve

* Capacity ratio : 100% = 5,2 kW

105115

110 100

105

100

5032 34 36 38 40 4233 35 37 39 41 4314 16 18 20 22 24

Outdoor temp. (˚C)Indoor air wet bulb temp. (˚C)

Capacity ratio (%)

• Conditions

Indoor : DB27˚C

Outdoor : DB35˚C

Indoor air flow : High

Pipe length 5m×2

2 units operating

• Conditions

Indoor : DB27˚C/WB19˚C

Indoor air flow : High

Pipe length 5m×2

2 units operating

Current Limited Start

Current (A)

Compressor speed (rps) Compressor speed (rps)

0 20 30 40 50 60 70 80 90 100 0 20 40 60 80 100 120 140

• Conditions

Indoor : DB 27˚C/WB 19˚C

Outdoor : DB 35˚C

Air flow : High

Pipe length : 5m x 2

2 units operating

230V

• Conditions

Indoor : DB 20˚C

Outdoor : DB 7˚C/WB 6˚C

Air flow : High

Pipe length : 5m x 2

2 units operating

230V

– 7 –

1-3. Electrical Data

Combination

of indoor unit

operation

10 —

13 —

10 10

13 10

System

Voltage range Power supply

Hz Volts- Min. Max. MCA ICF MOCP

Ph. (Amps)

5,81 5,81 15

50 230–1 198 264 8,51 8,51 15

12,10 12,10 15

12,21 12,21 15

Compressor Fan motor FLA

MSC RLA Indoor Outdoor

4,13 4,13 0,15 x 1=0,15 0,50

6,29 6,29 0,15 x 1=0,15 0,50

9,04 9,04 0,15 x 2=0,30 0,50

9,13 9,13 0,15 x 2=0,30 0,50

Combination

of indoor unit

operation

10 —

13 —

10 10

13 10

System

Voltage range Power supply

Hz Volts- Min. Max. MCA ICF MOCP

Ph. (Amps)

9,56 9,56 15

50 230–1 198 264 14,31 14,31 15

13,47 13,47 15

13,81 13,81 15

Compressor Fan motor FLA

MSC RLA Indoor Outdoor

7,13 7,13 0,15 x 1=0,15 0,50

10,93 10,93 0,15 x 1=0,15 0,50

10,14 10,14 0,15 x 2=0,30 0,50

10,41 10,41 0,15 x 2=0,30 0,50

NOTE :

Model of Indoor unit :

10 :RAS-M10YKV-E, RAS-M10YKCV-E

13 :RAS-M13YKV-E, RAS-M13YKCV-E

MCA : Minimum Circuit Amps.

ICF : Maximum Instantaneous Current Flow

(Equivalent to MCA in case of inverter air conditioner)

MOCP : Maximum Overcurrent Protection (Fuse only)

MSC : Maximum Starting Current

FLA : Full Load Amps.

RLA : Rated Load Amps.RLA under conditions on the right.

DB WB

Indoor temp. °C 20 —

Outdoor temp. °C 7 6

DB WB

Indoor temp. °C 27 19

Outdoor temp. °C 35 —

– 8 –

2. REFRIGERANT R410A

(5) After completion of installation work, check to

make sure that there is no refrigeration gas

leakage.

If the refrigerant gas leaks into the room, coming

into contact with fire in the fan-driven heater,

space heater, etc., a poisonous gas may occur.

(6) When an air conditioning system charged with a

large volume of refrigerant is installed in a small

room, it is necessary to exercise care so that,

even when refrigerant leaks, its concentration

does not exceed the marginal level.

If the refrigerant gas leakage occurs and its

concentration exceeds the marginal level, an

oxygen starvation accident may result.

(7) Be sure to carry out installation or removal

according to the installation manual.

Improper installation may cause refrigeration

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

(8) Unauthorized modifications to the air conditioner

may be dangerous.If a breakdown occurs

please call a qualified air conditioner technician

or electrician.

Improper repair’s may result in water leakage,

electric shock and fire, etc.

2-2. Refrigerant Piping Installation

2-2-1. Piping Materials and Joints Used

For the refrigerant piping installation, copper pipes

and joints are mainly used. Copper pipes and joints

suitable for the refrigerant must be chosen and

installed.Furthermore, it is necessary to use clean

copper pipes and joints whose interior surfaces are

less affected by contaminants.

(1) Copper Pipes

It is necessary to use seamless copper pipes

which are made of either copper or copper alloy

and it is desirable that the amount of residual oil

is less than 40 mg/10 m. Do not use copper

pipes having a collapsed, deformed or discol-

ored 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 inTable 2-2-1.Never use copper

pipes thinner than 0,8 mm even when it is

available on the market.

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 refrigerat-

ing oil are not entered in the refrigerant cycle of the

air conditioner using the new refrigerant during

installation work or servicing time.

The next section describes the precautions for air

conditioner using the new refrigerant.Conforming to

contents of the next section together with the

general cautions included in this manual, perform

the correct and safe work.

2-1. Safety During Installation/Servicing

As R410A’s pressure is about 1,6 times higher than

that of R22, improper installation/servicing may

cause a serious trouble. By using tools and materi-

als 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, pres-

sure in the refrigeration cycle becomes abnor-

mally 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 condi-

tioner 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.

– 9 –

Table 2-2-1 Thicknesses of annealed copper pipes

Thickness (mm)

Nominal diameter Outer diameter (mm) R410A R22

1/4 6,35 0,80 0,80

3/8 9,52 0,80 0,80

1/2 12,70 0,80 0,80

5/8 15,88 1,00 1,00

Table 2-2-2 Minimum thicknesses of socket joints

Nominal diameter Reference outer diameter of Minimum joint thickness

copper pipe jointed (mm) (mm)

1/4 6,35 0,50

3/8 9,52 0,60

1/2 12,70 0,70

5/8 15,88 0,80

(2) Joints

For copper pipes, flare joints or socket joints are

used. Prior to use, be sure to remove all con-

taminants.

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 inTables 2-2-3 ~ 2-2-

6below.

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

Table2-2-2.

2-2-2. Processing of Piping Materials

When performing the refrigerant piping installation,

care should be taken to ensure that water or dust

does not enter the pipe interior, that no other oil

other than lubricating oils used in the installed air

conditioner is used, and that refrigerant does not

leak.When using lubricating oils in the piping

processing, use such lubricating oils whose water

content has been removed.When stored, be sure to

seal the container with an airtight cap or any other

cover.

(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.

– 10 –

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

Dimension (mm)

ABCD

9,1 9,2 6,5 13 17

13,2 13,5 9,7 20 22

16,6 16,0 12,9 23 26

19,7 19,0 16,0 25 29

Nominal Outer diameter Thickness

diameter (mm) (mm)

1/4 6,35 0,8

3/8 9,52 0,8

1/2 12,70 0,8

5/8 15,88 1,0

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

Nominal Outer Thickness

diameter

diameter (mm) (mm)

1/4 6,35 0,8

3/8 9,52 0,8

1/2 12,70 0,8

5/8 15,88 1,0

A (mm)

Flare tool for Conventional flare tool

R410A clutch type Clutch type Wing nut type

0 to 0,5 1,0 to 1,5 1,5 to 2,0

0 to 0,5 1,0 to 1,5 2,0 to 2,5

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

Nominal Outer Thickness

diameter

diameter (mm) (mm)

1/4 6,35 0,8

3/8 9,52 0,8

1/2 12,70 0,8

5/8 15,88 1,0

A (mm)

Flare tool for Conventional flare tool

R22 clutch type Clutch type Wing nut type

0 to 0,5 0,5 to 1,0 1,0 to 1,5

0 to 0,5 0,5 to 1,0 1,5 to 2,0

ØD

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 conven-

tional flare tool.

Fig. 2-2-1 Flare processing dimensions

Flare processing dimensions differ according

to the type of flare tool.When using a con-

ventional flare tool, be sure to secure“dimen-

sion A” by using a gauge for size adjustment.

Flare nut

width

(mm)

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