Toshiba RAS-05TKVG-EE, RAS-07TKVG-EE, RAS-10TKVG-EE, RAS-13TKVG-EE, RAS-16TKVG-EE SERVICE MANUAL

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Page 1

SERVICE MANUAL

FILE NO. SVM-19040

SPLIT TYPE

Indoor Unit

RAS-05TKVG-EE RAS-07TKVG-EE RAS-10TKVG-EE RAS-13TKVG-EE RAS-16TKVG-EE RAS-18TKVG-EE

Outdoor Unit

RAS-05TAVG-EE RAS-07TAVG-EE RAS-10TAVG-EE RAS-13TAVG-EE RAS-16TAVG-EE RAS-18TAVG-EE

R32

March, 2019

Page 2

CONTENTS

FILE NO. SVM-19040

- 2 -

1. SAFETY PRECAUTIONS .......................................................................... 3

2. SPECIFICATIONS ..................................................................................... 6

REFRIGERANT R32 ................................................................................ 10

CONSTRUCTION VIEWS ........................................................................ 18

WIRING DIAGRAM .................................................................................. 21

SPECIFICATIONS OF ELECTRICAL PARTS ......................................... 24

REFRIGERANT CYCLE DIAGRAM ........................................................ 25

10.

11.

12.

13.

CONTROL BLOCK DIAGRAM ................................................................ 30

OPERATION DESCRIPTION................................................................... 33

INSTALLATION PROCEDURE ................................................................ 58

HOW TO DIAGNOSE THE TROUBLE ...................................................... 74

HOW TO REPLACE THE MAIN PARTS..................................................108

EXPLODED VIEWS AND PARTS LIST ................................................. 127

Page 3

1. SAFETY PRECAUTIONS

FILE NO. SVM-19040

- 3 -

Read the precautions in this manual carefully before operating the unit.

Information included in the Operation Manual and/or Installation Manual.

This appliance is ﬁ lled with R32. (Flammable Material)

Service personnel should be handing this equipment with reference to the Installation Manual.

For general public use

Power supply cord and connecting cable of appliance use shall be at least polychloroprene sheathed flexible cord (design H07RN-F) or cord designation 60245 IEC66. (Shall be installed in accordance with national wiring regulations.)

• Read this “SAFETY PRECAUTIONS” carefully before servicing.

• The precautions described below include the important items regarding safety. Observe them without fail.

• After the servicing work, perform a trial operation to check for any problem.

• Turn off the main power supply switch (or breaker) before the unit maintenance.

■

Important information regarding the refrigerant used This product contains ﬂ uorinated greenhouse gases covered by the Kyoto Protocol. Do not vent gases into the atmosphere. Refrigerant type: R32

(1)

GWP

value: 675*

(1)

GWP = global warming potential

The refrigerant quantity is in dicated on the unit name plate. * This value is based on F gas regulation 517/2014

CAUTION

TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY

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

Page 4

DANGER

FILE NO. SVM-19040

- 4 -

• ASK AN AUTHORIZED DEALER OR QUALIFIED INSTALLATION PROFESSIONAL TO INSTALL/MAINTAIN THE AIR CONDITIONER.

INAPPROPRIATE SERVICING MAY RESULT IN WATER LEAKAGE, ELECTRIC SHOCK OR FIRE.

• TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK. MAKE SURE ALL POWER SWITCHES ARE OFF. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.

DANGER: HIGH VOLTAGE

The high voltage circuit is incorporated. Be careful to do the check service, as the electric shock may be caused in case of touching parts

on the P.C. board by hand.

• CORRECTLY CONNECT THE CONNECTING CABLE. IF THE CONNECTING CABLE IS INCOR-

RECTLY CONNECTED, ELECTRIC PARTS MAY BE DAMAGED.

• CHECK THAT THE EARTH WIRE IS NOT BROKEN OR DISCONNECTED BEFORE SERVICE AND

INSTALLATION. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.

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

TO FOLLOW THIS INSTRUCTION CAN RESULT IN FIRE OR EXPLOSION.

• TO PREVENT THE INDOOR UNIT FROM OVERHEATING AND CAUSING A FIRE HAZARD, PLACE

THE UNIT WELL AWAY (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEAT REGISTORS, FURNACE, STOVES, ETC.

• WHEN MOVING THE AIR-CONDITIONER FOR INSTALLATION IN ANOTHER PLACE, BE VERY CARE-

FUL NOT TO ALLOW THE SPECIFIED REFRIGERANT (R32) TO BECOME MIXED WITH ANY

• OTHER GASEOUS BODY INTO THE REFRIGERATION CIRCUIT. IF AIR OR ANY OTHER GAS IS

MIXED IN THE REFRIGERANT, THE GAS PRESSURE IN THE REFRIGERATION CIRCUIT WILL BECOME ABNORMALLY HIGH AND IT MAY RESULT IN THE PIPE BURSTING AND POSSIBLE PERSONNEL INJURIES.

• IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE SERVICE

WORK AND THE INSTALLATION WORK, IMMEDIATELY LET FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS IS HEATED, SUCH AS BY FIRE, GENERATION OF POISONOUS GAS MAY RESULT.

WARNING

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

• Do not install in a place which cannot bear the weight of the unit. Personal injury and property damage can result if the unit falls.

• After the installation work, confirm that refrigerant gas does not leak.

If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas may generate.

• The electrical work must be performed by a qualified electrician in accordance with the Installation Manual. Make sure the air conditioner uses an exclusive circuit.

An insufficient circuit capacity or inappropriate installation may cause fire.

• When wiring, use the specified cables and connect the terminals securely to prevent external forces applied to the cable from affecting the terminals.

• Be sure to provide grounding.

Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone cables.

• Conform to the regulations of the local electric company when wiring the power supply.

Inappropriate grounding may cause electric shock.

Page 5

Do not pierce or burn as the appliance is pressurized. Do not expose the appliance to heat, ﬂ ame, sparks, or

FILE NO. SVM-19040

- 5 -

•

other sources or ignition. Else, it may explode and cause injury or death. For R32 model, use pipes, ﬂ are nut and tools which is speciﬁ ed for R32 refrigerant. Using of existing (R22)

•

piping, ﬂ are nut and tools may cause abnormally high pressure in the refrigerant cycle (piping), and possibly result in explosion and injury. Thickness of copper pipes used R32 must be more than 0.8mm. Never use copper pipes thinner than 0.8mm.

•

After completion of installation or service, confirm there is no leakage of refrigerant gas. It may generate toxic

•

gas when the refrigerant contacts with fire.

• Comply with national gas regulations.

CAUTION

• E

xposure of unit to water or other moisture before installation may res

Do not store in a wet basement or expose to rain or water.

• Do not install in a place that can increase the vibration of the unit. Do not ins

the noise level of the unit or where noise or dischar

• T

o avoid personal injury

• P

erform the specified installation work to guard against an earthquake.

If the air conditioner is not installed appropriately, ac

, be careful when handling parts with sharp edges.

ged air might disturb neighbors.

cidents may occur due to the falling unit.

ult in an electrical short.

tall in a place that can amplify

For Reference:

If a heating operation would be continuously performed for a long time under the condition that the outdoor temperature is 0°C or lower, drainage of defrosted water may be difficult due to freezing of the bottom plate, resulting in a trouble of the cabinet or fan.

It is recommended to procure an antifreeze heater locally for a safe installation of the air conditioner. For details, contact the dealer.

Page 6

2. SPECIFICATIONS

FILE NO. SVM-19040

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2-1. Specification

Unit model Indoor

Outdoor Cooling capacity (kW) Cooling capacity range (kW) 0.76-2.60 Heating capacity (kW) 2.50 Heating capacity range (kW) Power supply Electric Indoor Operation mode Cooling Heating Cooling Heating characteristic Running current (A) 0.19-0.17 0.19-0.17 0.22-0.20 0.22-0.20

Power consumption (W) 25 25 30 30 Power factor (%) 60 60 62 62

Outdoor Operation mode Cooling Heating Cooling Heating

Running current (A) 1.81-1.67 2.26-2.08 2.48-2.30 3.08-2.82 Power consumption (W) 345 445 500 610 Power factor (%) 87 90 89 91

Starting current (A) COP (Cooling / Heating) 4.05/4.26 3.77/3.91 Operating Indoor High (Cooling / Heating) (dB-A) 37/37 38/38 noise Medium (Cooling / Heating) (dB-A) 30/30 31/31

Low (Cooling / Heating) (dB-A) 22/22 23/23

Outdoor (Cooling / Heating) (dB-A) 46/48 46/48

Indoor unit Unit model

Dimension Height (mm) 293 293

Width (mm) 798 798

Depth (mm) 230 230

Net weight (kg) 9 9 Fan motor output (W) 25 25 Air flow rate (Cooling / Heating)

Outdoor unit Unit model

Dimension Height (mm) 530 530

Width (mm) 660 660

Depth (mm) 240 240

Net weight (kg) 22 22 Compressor Motor output (W) 550 550

Type

Model KSK75D43UEZA

Fan motor output (W) 43

Air flow rate (Cooling / Heating) Piping Type Flare connection connection Indoor unit Liquid side (mm)

Gas side (mm)

Outdoor unit Liquid side (mm)

Gas side (mm) Maximum length (m) 15 15 Maximum charge-less length (m) 15 15 Maximum height difference (m) 12 12

Refrigerant Name of refrigerant R32 R32

Weight (kg) 0.40 0.40

Wiring Power supply 3 Wires: Includes earth (Outdoor) connection Interconnection 4 Wires: Includes earth Usable temperature range Indoor (Cooling / Heating)

Outdoor (Cooling / Heating)

Accessory Indoor unit

Installation plate

Wireless remote controller

Batteries 2

Remote controller holder

Active Carbon Catechin filter

Mounting screw

Remote controller holder Flat head wood screw

Installation manual 1

Owner's manual

(m3 / min)

(oC) (oC)

RAS-05TKVG-EE

RAS-05TAVG-EE

1.50 2.00

0.75-2.00

2.00

0.90-3.00 1Ph/220-240V/50Hz

1.92 2.35 2.65

RAS-05TKVG-EE RAS-07TKVG-EE

9/9 9/9

RAS-05TAVG-EE RAS-07TAVG-EE

Single rotary type with DC-inverter variable speed control

30/30 30/30

6.35 6.35 9.52 9.52 6.35 6.35 9.52 9.52

21-32/ -28 21-32/ -28

-15,46/-15,24

6(4x25L)

2(3.1x16L)

RAS-07TKVG-EE

RAS-07TAVG-EE

0.92-3.30

KSK75D43UEZA

-15,46/-15,24

3.14

* The specification may be subject to change without notice for purpose of improvement.

Page 7

2-1. Specification

FILE NO. SVM-19040

- 7 -

Unit model Indoor

Outdoor Cooling capacity (kW) Cooling capacity range (kW) 1.00-3.60 Heating capacity (kW) 3.60 Heating capacity range (kW) Power supply Electric Indoor Operation mode Cooling Heating Cooling Heating characteristic Running current (A) 0.25-0.23 0.25-0.23 0.28-0.26 0.28-0.20

Power consumption (W) 35 Power factor (%) 63 63 64 64

Outdoor Operation mode Cooling Heating Cooling Heating

Running current (A) 3.65-3.32 4.05-3.72 5.12-4.69 4.33-3.97 Power consumption (W) 735 825 1060 880 Power factor (%) 92 93 94 92

Starting current (A) COP (Cooling / Heating) 3.25/3.72 3.00/3.91 Operating Indoor High (Cooling / Heating) (dB-A) 39/39 41/42 noise Medium (Cooling / Heating) (dB-A) 32/32 33/34

Low (Cooling / Heating) (dB-A) 24/24 24/24

Outdoor (Cooling / Heating) (dB-A) 48/50 48/50

Indoor unit Unit model

Dimension Height (mm) 293 293

Width (mm) 798 798

Depth (mm) 230 230

Net weight (kg) 9 9 Fan motor output (W) 25 25 Air flow rate (Cooling / Heating)

Outdoor unit Unit model

Dimension Height (mm) 530 530

Width (mm) 660 660

Depth (mm) 240 240

Net weight (kg) 23 24 Compressor Motor output (W) 550 620

Type

Model KSK75D43UEZA

Fan motor output (W) 43

Air flow rate (Cooling / Heating) Piping Type Flare connection connection Indoor unit Liquid side (mm)

Gas side (mm)

Outdoor unit Liquid side (mm)

Gas side (mm) Maximum length (m) 15 15 Maximum charge-less length (m) 15 15 Maximum height difference (m) 12 12

Refrigerant Name of refrigerant R32 R32

Weight (kg) 0.43 0.46

Wiring Power supply 3 Wires: Includes earth (Outdoor) connection Interconnection 4 Wires: Includes earth Usable temperature range Indoor (Cooling / Heating)

Outdoor (Cooling / Heating)

Accessory Indoor unit

* The specification may be subject to change without notice for purpose of improvement.

Installation plate

Wireless remote controller

Batteries 2

Remote controller holder

Active Carbon Catechin filter

Mounting screw

Remote controller holder Flat head wood screw

Installation manual 1

Owner's manual

(m3 / min)

(oC) (oC)

RAS-10TKVG-EE

RAS-10TAVG-EE

2.50 3.30

0.80-3.00

3.20

1.00-3.90

1Ph/220-240V/50Hz

3.70 4.10 5.15

RAS-10TKVG-E RAS-13TKVG-E

9/9 10/10

RAS-10TAVG-E RAS-13TAVG-E

Single rotary type with DC-inverter variable speed control

30/30

6.35 6.35 9.52 9.52 6.35 6.35 9.52 9.52

21-32/ -28 21-32/ -28

-15,46/-15,24

6(4x25L)

2(3.1x16L)

RAS-13TKVG-EE

RAS-13TAVG-EE

1.10-4.50

40 40

KSK89D53UEZ

33/33

-15,46/-15,24

4.41

Page 8

2-1. Specification

FILE NO. SVM-19040

- 8 -

Unit model Indoor

Outdoor Cooling capacity (kW) Cooling capacity range (kW) Heating capacity (kW) Heating capacity range (kW) Power supply Electric Indoor Operation mode Co o ling H ea ting characteristic Running current (A) 0.31-0.29 0.31-0.29

Power consumption (W) 45 45 Power factor (%) 65 65

Outdoor Operation mode Cooling Heating

Running current (A) 6.34-5.81 6.39-5.86 Power consumption (W) 1355 1355 Power factor (%) 97 96

Starting current (A) COP (Cooling / Heating) 3.00/3.57 Operating Indoor High (Cooling / Heating) (dB-A) 43/43 noise Medium (Cooling / Heating) (dB-A) 35/35

Low (Cooling / Heating) (dB-A) 25/25

Outdoor (Cooling / Heating) (dB-A) 49/51

Indoor unit Unit model

Dimension Height (mm) 293

Width (mm) 798

Depth (mm) 230

Net weight (kg) 10 Fan motor output (W) 35 Air flow rate (Cooling / Heating)

Outdoor unit Unit model

Dimension Height (mm) 550

Width (mm) 780

Depth (mm) 290

Net weight (kg) 30 Compressor Motor output (W) 750

Type

Model KSN108D22UFZ

Fan motor output (W) 43

Air flow rate (Cooling / Heating) Piping Type Flare connection connection Indoor unit Liquid side (mm)

Gas side (mm)

Outdoor unit Liquid side (mm)

Gas side (mm) Maximum length (m) 20 Maximum charge-less length (m) 15 Maximum height difference (m) 12

Refrigerant Name of refrigerant

Weight (kg) 0.62

Wiring Power supply 3 Wires: Includes earth (Outdoor) connection Interconnection 4 Wires: Includes earth Usable temperature range Indoor (Cooling / Heating) 21-32/ -28

Outdoor (Cooling / Heating) -15,46/-15,24

Accessory Indoor unit

Installation plate 1

Wireless remote controller 1

Batteries

Remote controller holder 1

Active Carbon Catechin filter

Mounting screw

Remote controller holder Flat head wood screw

Installation manual 1

Owner's manual

(m3 / min)

(oC) (oC)

RAS-16TKVG-EE

RAS-16TAVG-EE

4.20

1.20-4.70

5.00

1.30-6.00

11Ph/220-240V/50Hz

6.35 6.41

RAS-16TKVG-E

13/13

RAS-16TAVG-E

Single rotary type with DC-inverter variable speed control

36/36

6.35 12.7 6.35 12.7

R32

6(4x25L)

2(3.1x16L)

RAS-18TKVG-EE

RAS-18TAVG-EE

Co o ling H ea ting

0.34-0.32 0.34-0.32 50 50 66 66

Cooling Heating

6.91-6.33 7.16-6.58

1500 1550

99 98

7.25-6.65 7.50-6.90

RAS-18TKVG-E

5.00

1.30-5.50

5.40

1.00-6.00

3.23/3.38

47/48 40/40 32/32 50/52

293 798 230

13/14

RAS-18TAVG-E

550 780 290

750

KSN108D22UFZ

36/36

Flare connection

6.35 12.7 6.35 12.7

15 12

0.88

21-32/ -28

-15,46/-15,24

6(4x25L)

2(3.1x16L)

* The specification may be subject to change without notice for purpose of improvement.

Page 9

2-2. Operation Characteristic Curve

FILE NO. SVM-19040

- 9 -

RAS-18TKVG-EE

RAS-16TKVG-EE

RAS-05TKVG-EE

RAS-16TKVG-EE

RAS-18TKVG-EE

RAS-13TKVG-EE

RAS-10TKVG-EE

Current (A)

RAS-07TKVG-EE

Conditions Indoor : DB 27oC/WB 19 Outdoor : DB 35oC/WB 24 Indoor Air Flow : High Pipe Length : 5m

Pipe Length : 7.5m (18k Only)

Voltage : 230V

0 10 20 30 40 50 60 70 80 90 100 110

Current (A)

0 10 20 30 40 50 60 70 80 90 100 110

Compressor Speed (RPS)

2-3. Capacity Variation ratio According to Temperature.

105

120

RAS-05TKVG-EE

Conditions Indoor : DB 20oC/WB 15 Outdoor : DB 7oC/WB 6 Indoor Air Flow : High

Pipe Length : 5m

Pipe Length : 7.5m (18k Only)

Voltage : 230V

Compressor Speed (RPS)

RAS-13TKVG-EE

RAS-07TKVG-EE

RAS-10TKVG-EE

100

Cooling Capacity ratio (%)

Capacity ratio : 100 %=

1.50kW(RAS-05TKVG-EE)

2.00kW(RAS-07TKVG-EE)

2.50kW(RAS-10TKVG-EE)

3.30kW(RAS-13TKVG-EE)

4.20kW(RAS-16TKVG-EE)

5.00kW(RAS-18TKVG-EE)

32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Conditions Indoor : DB 27oC/WB 19 Outdoor : DB 35oC/WB 24 Indoor Air Flow : High Pipe Length : 5m

Pipe Length : 7.5m (18K only)

Voltage : 230V

Outside Temperature ( oC)

100

Heating Capacity ratio (%)

Capacity ratio : 100 %=

2.00kW(RAS-05TKVG-EE)

2.50kW(RAS-07TKVG-EE)

3.20kW(RAS-10TKVG-EE)

3.60kW(RAS-13TKVG-E

5.00kW(RAS-16TKVG-EE)

5.40kW(RAS-18TKVG-EE)

Conditions Indoor : DB 20oC/WB 15 Outdoor : DB 7oC/WB 6 Indoor Air Flow : High

Pipe Length : 5m

Pipe Length : 7.5m (18K only)

Voltage : 230V

-25 -20 5 10

-15 -10 -5 0 Outside Temperature ( ºC)

Page 10

3. REFRIGERANT R32

FILE NO. SVM-19040

- 10 -

This air conditioner adopts the new refrigerant HFC (R32) which does not damage the ozone layer.

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.

3-1. Safety During Installation/Servicing

The basic installation servicing work procedures are the same as conventional R410A models.

As R32’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 R32, it is necessary to carry out installation/ servicing safely while taking the following precautions into consideration.

1. Never use refrigerant other than R32 in an air conditioner which is designed to operate with R32. If other refrigerant than R32 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. The refrigerant name R32 is indicated on the visible place of the outdoor unit of the air conditioner using R32 as refrigerant. To prevent mischarging, the diameter of the service port differs from that of R22.

R32 and other HFCs are heavier than air, and therefore they are inclined to settle near the floor surface. If the gas fills up the room or the bottom part of a room, it may also cause oxygen deficiency and may reach its combustion concentration.

In order to prevent oxygen deficiency and R32 combustion, keep the room well-ventilated for a healthy work environment.

In particular, using HFCs in a basement room or confined area creates a higher risk; be sure to furnish the room with local exhaust ventilation. If a refrigerant leak is confirmed in a room an inadequately ventilated location, do not use a flame until the area has been ventilated appropriately and the work environment has been improved. The same applies in case of brazing, ensure appropriate ventilation to prevent oxygen deficiency and R32 combustion. Check that there are no dangerous or combustible items nearby, and ensure a fire extinguisher is close at hand. Keep a sufficient distance away from causes of fire (ignition sources) suc and electric heaters in places where installation, repairs, or similar work on air-conditioning equipment is performed.

h as gas-burning equipment

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 moisture dust or oil to remain in the refrigeration cycle. Otherwise, pressure in the refrigeration cycle may become abnormally high so that a rupture or personal injury may be caused.

5. After completion of installation work, check to make sure that there is no refrigeration gas leakage. If the refrigerant gas leaks into the room, coming into contact with fire in the fan-driven heater, space heater, etc., a poisonous gas may occur

6. When an air conditioning system charged with a

large volume of refrigerant is installed in a small room, it is necessary to exercise care so that, even when refrigerant leaks, its concentration does not exceed the marginal level. If the refrigerant gas leakage occurs and its concentration exceeds the marginal level, an oxygen starvation accident may result.

7. Be sure to carry out installation or removal according to the installation manual. Improper installation may cause refrigeration trouble, water leakage, electric shock, fire, etc.

8. Unauthorized modifications to the air conditioner may be dangerous. If a breakdown occurs please call a qualified air conditioner technician or electrician.

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

3-2. Refrigerant Piping Installation

3-2-1. 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 R32 incurs pres-sure higher than when using R22, it is necessary to choose adequate materials.

Thicknesses of copper pipes used with R32 are as shown in Table 3-2-1. Never use copper pipes thinner than 0.8 mm even when it is available on the market.

Page 11

Table 3-2-1 Thicknesses of annealed copper pipes

FILE NO. SVM-19040

- 11 -

Thickness (mm)

Nominal diameter

1/4

3/8

1/2

5/8

Outer diameter (mm)

6.35

9.52

12.70

15.88

R32(R410A) R22

0.80 0.80

1.00 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 3-2-3 to 3-2-6 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 3-2-2.

Table 3-2-2 Minimum thicknesses of socket joints

Nominal diameter

1/4

3/8

1/2

5/8

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

3-2-2. 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 than lubricating oils used in the installed air-water heat pump 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.

c) Insertion of Flare Nut

Page 12

d) Flare Processing

FILE NO. SVM-19040

- 12 -

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 R32 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.

Table 3-2-3 Dimensions related to flare processing for R32(R410A)

Nominal

diameter

Outer

diameter

(mm)

Thickness

(mm)

Fig. 3-2-1 Flare processing dimensions

Flare tool for R32

clutch type

ØD

A (mm)

Conventional flare tool

Clutch type Wing nut type

1/4

3/8

1/2

5/8

Nominal

diameter

1/4

3/8

1/2

5/8

6.35

9.52

12.70

15.88

Table 3-2-4 Dimensions related to flare processing for R22

Outer

diameter

(mm)

6.35

9.52

12.70

15.88

0.8

1.0

Thickness

(mm)

0.8

1.0

0 to 0.5

Flare tool for R22

clutch type

0 to 0.5

1.0 to 1.5 1.5 to 2.0

1.0 to 1.5 2.0 to 2.5

A (mm)

Conventional flare tool

Clutch type Wing nut type

0.5 to 1.0 1.0 to 1.5

0.5 to 1.0 1.5 to 2.0

Nominal diameter

1/4

3/8

1/2

5/8

Table 3-2-5 Flare and flare nut dimensions for R32(R410A)

Outer diameter

(mm)

6.35

9.52

12.70

15.88

Thickness

(mm)

0.8

1.0

Dimension (mm)

ABCD

9.1 9.2 6.5 13

13.2 13.5 9.7 20

16.6 16.0 12.9 23

19.7 19.0 16.0 25

Flare nut width

(mm)

Page 13

Table 3-2-6 Flare and flare nut dimensions for R22

FILE NO. SVM-19040

- 13 -

Nominal diameter

1/4

3/8

1/2

5/8

3/4

Outer diameter

(mm)

6.35

9.52

12.70

15.88

19.05

45° to 46°

Thickness

(mm)

0.8

1.0

B A

Dimension (mm)

ABCD

9.0 9.2 6.5 13

13.0 13.5 9.7 20

16.2 16.0 12.9 20

19.7 19.0 16.0 23

23.3 24.0 19.2 34

43° to 45°

Flare nut width

(mm)

Fig. 3-2-2 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 R32 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 3-2-7 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.

Table 3-2-7 Tightening torque of flare for R32(R410A) [Reference values]

Nominal diameter

Outer diameter

(mm)

Tightening torque

N•m (kgf•cm)

Tightening torque of torque

wrenches available on the market

N•m (kgf•cm)

1/4

3/8

1/2

5/8

6.35

9.52

12.70

15.88

14 to 18 (140 to 180)

33 to 42 (330 to 420)

50 to 62 (500 to 620)

63 to 77 (630 to 770)

16 (160), 18 (180)

42 (420)

55 (550)

65 (650)

Page 14

3-3. Tools

FILE NO. SVM-19040

- 14 -

3-3-1. Required Tools

The service port diameter of packed valve of the outdoor unit in the air-water heat pump using R32 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 R32 (Those which cannot be used for conventional refrigerant (R22))

2. Tools exclusive for R32, but can be also used for conventional refrigerant (R22)

3. Tools commonly used for R32 and for conventional refrigerant (R22) The table below shows the tools exclusive for R32 and their interchangeability.

Tools exclusive for R32 (The following tools for R410A are required.)

Tools whose specifications are changed for R32 and their interchangeability

Ye s

R32(R410A)

Whether conventional equipment can be used

*(Note 1)

× ×

air-water heat pump installation

No.

(Note 1) When flaring is carried out for R32(R410A) using the conventional flare tools, adjustment of projection

Used tool

Flare tool

Copper pipe gauge for adjusting projection margin

Torque wrench (For Ø12.7)

Gauge manifold

Charge hose

Vacuum pump adapter

Electronic balance for refrigerant charging

Leakage detector

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

Pipe flaring

Flaring by conventional flare tool

Connection of flare nut

Evacuating, refrigerant charge, run check, etc.

Vacuum evacuating

Refrigerant charge

Gas leakage check

Usage

Existence of new equipment for R32

Conventional air-water

heat pump installation

Whether new equipment can be used with conventional refrigerant

*(Note 1)

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

1. Vacuum pump Use vacuum pump by attaching vacuum pump adapter.

2. Torque wrench (For Ø6.35, Ø9.52)

3. Pipe cutter

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

1. Clamp meter

2. Thermometer

General tools (Conventional tools can be used.)

4. Reamer

5. Pipe bender

10. Hexagon wrench

6. Level vial

7. Screwdriver (+, –)

8. Spanner or Monkey wrench

11. Tape measure

12. Metal saw

3. Insulation resistance tester

4. Electroscope

9. Hole core drill (Ø65)

(Opposite side 4mm)

Page 15

3-4. Recharging of Refrigerant

FILE NO. SVM-19040

- 15 -

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.

Connect the charge hose to the vacuum pump adapter.

Open fully both packed valves at liquid and gas sides.

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.

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

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

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.

(For refrigerant charging, see the figure below.)

1. Never charge refrigerant exceeding the specified amount.

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

3. 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)

Opened

(Outdoor unit)

Refrigerant cylinder

(with siphon)

Check valve

Opened Open/close valve for charging

Electronic balance for refrigerant charging

Fig. 3-4-1 Configuration of refrigerant charging

Opened

Closed

Service port

Page 16

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

FILE NO. SVM-19040

- 16 -

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

Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the cylinder upside down if cylinder is not equipped with siphon.

[ Cylinder with siphon ] [ Cylinder without siphon ]

Gauge manifold

OUTDOOR unit

Refrigerant

cylinder

Gauge manifold

OUTDOOR unit

cylinder

Refrigerant

Electronic

balance

3-5. Brazing of Pipes

3-5-1. 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.

Electronic

balance

Siphon

Fig. 3-4-2

1. 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.

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

3-5-2. Flux

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.

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.

Page 17

2. Characteristics required for flux

FILE NO. SVM-19040

- 17 -

• 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

3-5-3. 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

1) Attach a reducing valve and a flow-meter to the Nitrogen gas cylinder.

2) Use a copper pipe to direct the piping material, and attach a flow-meter to the cylinder.

3) 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.

4) When the Nitrogen gas is flowing, be sure to keep the piping end open.

5) 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.

6) 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).

7) Remove the flux completely after brazing.

Piping material

Copper - Copper

Copper - Iron

Iron - Iron

Used brazing filler

Phosphor copper

Silver

Used flux

Do not use

Paste flux

Vapor flux

1. Do not enter flux into the refrigeration cycle.

2. When chlorine contained in the flux remains within the pipe, the lubricating oil deteriorates. Therefore, use a flux which does not contain chlorine.

3. When adding water to the flux, use water which does not contain chlorine (e.g. distilled water or ion-exchange water).

4. Remove the flux after brazing.

Flow meter

Stop valve

Nitrogen gas

cylinder

From Nitrogen cylinder

Pipe

Nitrogen gas

Rubber plug

Fig. 3-5-1 Prevention of oxidation during brazing

Page 18

4. CONSTRUCTION VIEWS

FILE NO. SVM-19040

- 18 -

4-1. Indoor Unit

Front Panel

Back Body

7 55

Knock Out System

Grille Inlet

798

Air Inlet

:\/

293

Hert Exchanger

114

" " " "

  '

Air Outlet

55 66.5

97 24

Installation plate hanger

131 131 140 131 120 24

Air Filter

55 66.5

Knock Out System

Wireless remote controller

230

17.5

110

7 55

64.5

Drain hose (0.4m)

Installation plate hanger

Connecting pipe (0.35m) (Flare

9.52mm : for 05,07,10 and 13 series)

(Flare 12.70 mm : for 16,18 series)

144 144

298

Hanger Hanger

94 94 135 170 170 135

340

510

192 192

170 170

Hanger

Installation plate hanger

Connecting pipe (0.40m)

(Flare

6.35mm)

Outline of indoor unit

73.5

Remote controller holder

Center line

Installation plate outline

Page 19

4-2. Outdoor Unit (RAS-05,07,10,13TAVG-EE)

FILE NO. SVM-19040

- 19 -

(Unit : mm)

300

280

400

Page 20

4-3. Outdoor Unit (RAS-16,18TAVG-EE)

FILE NO. SVM-19040

- 20 -

(Unit : mm)

600

320

306

A detail Drawing (Back leg)

R5.5

6 hole

320

340

FAN-GUARD

550

25 Drain outlet

436

275

108 125

306

320

11 x 14

(For 8 -

Hole

10 anchor bolt)

6 hole

11x14 hole

B Detail Drawing (Front leg)

36 50

COVER-PV

290

100 or more

320

Z View

600

Air intlel

9060090

600 or more

137

320 342

Liquid side

(Flare 6.35)

Gas side

(Flare ∅ 12.7)

Service port

100 or more

Air outlel

600 or more

Installation dimension

Page 21

RAS-05TKVG-EE / RAS-05TAVG-EE

FILE NO. SVM-19040

- 21 -

RAS-07TKVG-EE / RAS-07TAVG-EE RAS-10TKVG-EE / RAS-10TAVG-EE RAS-13TKVG-EE / RAS-13TAVG-EE

5. WIRING DI

AGRAM

Page 22

RAS-16TKVG-EE / RAS-16TAVG-EE

FILE NO. SVM-19040

- 22 -

Page 23

RAS-18TKVG-EE / RAS-18TAVG-EE

FILE NO. SVM-19040

- 23 -

Page 24

6-1. Indoor Unit

FILE NO. SVM-19040

- 24 -

6. SPECIFICATIONS OF ELECTRICAL PARTS

No. Typeype Specificat

1 Fan Motor (for indoor)

2 Room temp. sensor (TA-sensor) (-) 10kΩ at 25°C

3 Heat exchanger temp. sensor (TC-sensor) (-) 10kΩ at 25°C

4 Heat exchanger temp. sensor (TCJ-sensor)

Louver motor

Parts name

RAS-05,07,10,13

RAS-16

RAS-18

SJM-240-25 AC 220~240V, 25W

SJM-240-35 AC 220~240V, 35W

ICF-340-30-6 DC 340V, 42W

(-)

24BYJ48-ST

10kΩ at 25°C

Output (Rated) 4 phase, DC12V

6-2. Outdoor Unit

No. Type name Specifications

1 Compressor

2 Fan Motor WDF-340-A43-1 DC 140-340V ; 43W

Parts name

RAS-05,07,10

RAS-13 KSK89D53UEZ

RAS-16,18

KSK75D43UEZA 3-Phases (6-Poles) ; 550W

KSN108D22UFZ 3-Phases (6-Poles) ; 750W

3-Phases (6-Poles) ; 620W

3 Pulse Modulating Valve (PMV) coil PQ-M10012-000313 DC 12V

4 4-Way valve coil DXQ-939 AC 220-240V

5 Reactor

6 Suction temp. sensor (TS sensor) (Inverter attached)

7 Discharge temp. sensor (TD sensor) (Inverter attached)

8 Outside air temp. sensor (TO sensor) (Inverter attached)

9 Heat Exchanger temp. sensor (TE sensor) (Inverter attached)

10 Terminal block (5 poles) JXO-5B

RAS-16,18

CH-69-Z-T L = 19mH, 10A

10kΩ at 25°C

62kΩ at 20°C

10kΩ at 25°C

AC 250V, 20A

Page 25

7. REFRIGERANT CYCLE DIAGRAM

FILE NO. SVM-19040

- 25 -

7-1. Refrigerant Cycle Diagram

RAS-05TKVG-EE / RAS-05TAVG-EE RAS-07TKVG-EE / RAS-07TAVG-EE RAS-10TKVG-EE / RAS-10TAVG-EE

INDOOR UNIT

Indoor heat

exchanger

Temp. measurement

Pressure measurement Gauge attaching port

Vacuum pump connecting port

Deoxidized copper pipe Outer dia. : 9.52mm Thickness : 0.8mm

4-way valve

Muffler

Compressor

KSK75D43UEZA

Outdoor heat

exchanger

Cross flow fan

Deoxidized copper pipe Outer dia. : 6.35mm Thickness : 0.8mm

Sectional shape of heat insulator

Split capillary

Allowable height

difference : 12m

Strainer

Pulse Modulating valve at liquid side

Strainer

Max. : 15m Min. : 2m

Chargeless : 15m

Allowable pipe length

Temp. measurement

NOTE :

• The maximum pipe length of this air conditioner is 20 m. When the pipe length exceeds 15m, the additional

charging of refrigerant, 20g per 1m for the part of pipe exceeded 15m is required. (Max. 100g)

Propeller fan

OUTDOOR UNIT

05k and 07k Refrigerant amount : 0.40kg

10k Refrigerant amount : 0.43kg

NOTE :

Gas leak check position Refrigerant flow (Cooling) Refrigerant flow (Heating)

Page 26

RAS-13TKVG-EE / RAS-13TAVG-EE

FILE NO. SVM-19040

- 26 -

INDOOR UNIT

Indoor heat

exchanger

Temp. measurement

Pressure measurement Gauge attaching port

Vacuum pump connecting port

Deoxidized copper pipe

Outer dia. : 9.52mm

Thickness : 0.8mm

4-way valve

Muffler

Cross flow fan

Deoxidized copper pipe Outer dia. : 6.35mm Thickness : 0.8mm

Sectional shape of heat insulator

Compressor

KSK89D53UEZ

Allowable height

difference : 12m

Strainer

Pulse Modulating valve at liquid side

Strainer

Max. : 15m

Min. : 2m Chargeless : 15m

Allowable pipe length

Outdoor heat

exchanger

Temp. measurement

Propeller fan

OUTDOOR UNIT

NOTE :

Refrigerant amount : 0.46kg

Gas leak check position Refrigerant flow (Cooling) Refrigerant flow (Heating)

NOTE :

• The maximum pipe length of this air conditioner is 20 m. When the pipe length exceeds 15m, the additional

charging of refrigerant, 20g per 1m for the part of pipe exceeded 15m is required. (Max. 100g)

Page 27

RAS-16TKVG-EE / RAS-16TAVG-EE

FILE NO. SVM-19040

- 27 -

INDOOR UNIT

Indoor heat

exchanger

Temp. measurement

Pressure measurement

Gauge attaching port Vacuum pump connecting port

Deoxidized copper pipe

Outer dia. : 12.7mm

Thickness : 0.8mm

4-way valve

Muffler

Cross flow fan

Deoxidized copper pipe Outer dia. : 6.35mm Thickness : 0.8mm

Sectional shape of heat insulator

Compressor

KSN108D22UFZ

Allowable height

difference : 12m

Strainer

Pulse Modulating valve at liquid side

Strainer

Max. : 20m Min. : 2m Chargeless : 15m

Allowable pipe length

Outdoor heat

exchanger

Temp. measurement

Propeller fan

OUTDOOR UNIT

NOTE :

Refrigerant amount : 0.62kg

Gas leak check position Refrigerant flow (Cooling) Refrigerant flow (Heating)

NOTE :

• The maximum pipe length of this air conditioner is 20 m. When the pipe length exceeds 15m, the additional

charging of refrigerant, 20g per 1m for the part of pipe exceeded 15m is required. (Max. 100g)

Page 28

RAS-18TKVG-EE / RAS-18TAVG-EE

FILE NO. SVM-19040

- 28 -

INDOOR UNIT

Indoor heat

exchanger

Temp. measurement

Pressure measurement

Gauge attaching port Vacuum pump connecting port

Deoxidized copper pipe

Outer dia. : 1

Thickness : 0.8mm

2.7mm

4-way valve

Muffler

Cross flow fan

Deoxidized copper pipe Outer dia. : 6.35mm Thickness : 0.8mm

Sectional shape of heat insulator

Muffler

Compressor

SN108D22UFZ

Allowable height

difference : 12m

Strainer

Pulse Modulating valve at liquid side

Strainer

Max. : 20 Min.

: 2m

Chargeless : 15

Allowable pipe length

Temp. measurement

NOTE :

• The maximum pipe length of this air conditioner is 20 m. When the pipe length exceeds 15m, the additional

charging of refrigerant, 20g per 1m for the part of pipe exceeded 15m is required. (Max. 100g)

Outdoor heat

exchanger

Propeller fan

OUTDOOR UNIT

NOTE :

Refrigerant amount : 0.88kg

Gas leak check position Refrigerant flow (Cooling) Refrigerant flow (Heating)

Page 29

7-2. Operation Data

FILE NO. SVM-19040

- 29 -

Tempeature Heat exchanger

condition(°C)

Indoor Outdoor P (MPa) T1 (°C) T2 (°C) (rps)

27/19 35/-

Model name Standard Indoor Outdoor Compressor RAS- pressure fan mode fan mode revolution

05TKVG-EE 07TKVG-EE

10TKVG-EE

13TKVG-EE 16TKVG-EE 18TKVG-EE

1.2 to 1.3

1.1 to 1.2 12 to 13 48 to 49

1.0 to 1.1 9 to 11 48 to 49

1.0 to 1.1 9 to 11 50 to 51

0.8 to 1.0 8 to 9 46 to 47

pipe temp.

14 to 16

13 to 14

43 to 44 46 to 47

High

High High High High High High High High High High

High

42 61 75 75

Tempeature Heat exchanger

condition(°C)

Indoor Outdoor P (MPa) T1 (°C) T2 (°C) (rps)

20/- 7/6

Model name Standard Indoor Outdoor Compressor RAS- pressure fan mode fan mode revolution

05TKVG-EE

07TKVG-EE

10TKVG-EE 13TKVG-EE 16TKVG-EE 18TKVG-EE

2.2 to 2.3 36 to 37

2.3 to 2.4 39 to 40

2.3 to 2.4 38 to 40

2.4 to 2.5 40 to 42 1 to 2

2.7 to 2.8 44 to 45 0 to 1

2.9 to 3.0 45 to 48 2 to 3

pipe temp.

1 to 2

0 to 1 High High 0 to 1 High High

High High

High High High High

High

46 59 78

Connecting

piping

(m)

5.0

7.5

Connecting

piping

(m)

5.0

7.5

NOTES :

1. Measure surface temperature of heat exchanger pipe around center of heat exchanger path U bent. (Thermistor thermometer)

Page 30

8-1. Indoor Unit

FILE NO. SVM-19040

- 30 -

Heat Exchanger Sensor

8. CONTROL BLOCK DIAGRAM

Indoor Unit Control Panel

M.C.U

Functions

• Louver Control

Operation

Display

Temperature Sensor

Infrared Rays Signal Receiver

Initiallizing Circuit

Infrared

Rays

36.7KHz

Clock Frequency

Oscillator Circuit

Power Supply

Remote

Control

Noise Filter

Power Supply

(From Outdoor Unit)

Circuit

•

3-minute Delay at Restart for Compressor

•

Motor Revolution Control

•

Processing (Temperature Processing)

•

Timer

•

LED brightness dim

•

Serial Signal Communication

Louver ON/OFF Signal

Louver Driver

Serial Signal Transmitter/Receiver

Serial Signal Communication

Timer

Display

Hi-Power

Display

Wi-Fi

Display

ECO

Display

Indoor

Fan Motor

Louver Motor

REMOTE CONTROL

Infrared Rays

Remote Control

Operation ( )

Operation Mode Selection

AUTO, COOL, DRY, HEAT, FAN ONLY

Temperature Setting

Fan Speed Selection

OFF TIMER Setting

Louver Auto Swing

Louver Direction Setting

ECO

Hi-POWER

SILENT operation

Page 31

8-2. Outdoor Unit (Inverter Assembly)

FILE NO. SVM-19040

- 31 -

RAS-05TKVG-EE / RAS-05TAVG-EE RAS-07TKVG-EE / RAS-07TAVG-EE RAS-10TKVG-EE / RAS-10TAVG-EE RAS-13TKVG-EE / RAS-13TAVG-EE

OUTDOOR UNIT

detect

Current

detect

Current

Outdoor

Fan motor

Inverter

(DC → AC)

Compressor

P.M.V. : Pulse Motor Valve

M.C.U. : Micro Control Unit

MICRO-COMPUTER BLOCK DIAGRAM

WP-032 (P.C.B)

M.C.U

IPM over-current detect control

• PWM synthesis function

• Input current release control

•

circuit

Indoor unit

send/receive

Clock

• Outdoor fan control

• High power factor correction control

• Inverter output frequency control

• A/D converter function

• P.M.V. control

• Discharge temp. control

• 4-way valve control

• Signal communication to indoor unit

High Power

10MHz

circuit

Converter

(AC → DC)

Detector

High current

Filter

Noise

frequency

factor Correction

Inverter

(DC → AC)

Drrive

circuit

of P.M.V.

Driver circuit

valve

4-way

P.M.V.

220–240V ~50Hz

For INDOOR UNIT

230V ~60Hz

−

220

Discharge

temp. sensor

Outdoor air

temp. sensor

Suction temp.

sensor

temp.sensor

Heat exchanger

Page 32

RAS-16TKVG-EE / RAS-16TAVG-EE

FILE NO. SVM-19040

- 32 -

RAS-18TKVG-EE / RAS-18TAVG-EE

OUTDOOR UNIT

detect

Current

detect

Current

Outdoor

Fan motor

Inverter

(DC → AC)

Compressor

P.M.V. : Pulse Motor Valve

M.C.U. : Micro Control Unit

MICRO-COMPUTER BLOCK DIAGRAM

WP-030 (P.C.B)

M.C.U

IPM over-current detect control

• PWM synthesis function

• Input current release control

•

circuit

Indoor unit

send/receive

Clock

• Outdoor fan control

• High power factor correction control

• Inverter output frequency control

• A/D converter function

• P.M.V. control

• Discharge temp. control

• 4-way valve control

• Signal communication to indoor unit

High Power

10MHz

circuit

Converter

(AC → DC)

Detector

High current

Filter

Noise

frequency

factor Correction

Inverter

(DC → AC)

Drrive

circuit

of P.M.V.

Driver circuit

valve

4-way

P.M.V.

220–240V ~50Hz

For INDOOR UNIT

230V ~60Hz

−

220

Discharge

temp. sensor

Outdoor air

temp. sensor

Suction temp.

sensor

temp.sensor

Heat exchanger

Page 33

9. OPERATION DESCRIPTION

FILE NO. SVM-19040

- 33 -

9-1. Outline of Air Conditioner Control

This air conditioner is a capacity-variable type air conditioner. Its system can control the speed of compressor motor according to load. The drive circuit for the indoor motor is mounted in the indoor unit. The drive circuits for outdoor motor and compressor are mounted in the outdoor unit.

The entire air conditioner is mainly controlled by the indoor unit controller. The indoor unit controller

drives the indoor fan motor based upon command sent from the remote controller. Moreover, it also

determines required speed of compressor motor and then transfers the operation command to the outdoor unit controller.

The outdoor unit controller erceives operation command from the indoor unit and controls revolution speed of the compressor motor. The outdoor unit controller controls speed of compressor motor be controlling output voltage of the inverter and switching timing of supply power (current transfer timing), so that compressor motor operates according to the operation command. And then, the outdoor unit controller transfers the operating status back to the indoor unit controller.

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

1. Role of indoor unit controller

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

• Judgment of suction air temperature of the indoor heat exchanger by using the indoor temp. sensor. (TA sensor)

• Judgment of the indoor heat exchanger temperature by using heat exchanger sensor (TC sensor) (Prevent-freezing control, etc.)

• Louver motor control

• Indoor fan motor operation control

• LED (Light Emitting Diode) display control

• Transferring of operation command signal (Serial signal) to the outdoor unit

• Reception of information of operation status (Serial signal including outside temp. data) from the outdoor unit and judgment/display of error

2. Role of outdoor unit controller

Receiving the operation command signal (Serial signal) from the indoor unit controller, the outdoor unit performs compressor operation control as followed to judgment of serial signal from indoor side.

• Detection of inverter input current and current release operation

• Over-current detection and prevention operation to IGBT module (Compressor stop function)

• Compressor and outdoor fan stop function when serial signal is off (when the serial signal does not reach the board assembly of outdoor control by trouble of the signal system)

• Transferring of operation information (Serial signal) from outdoor unit controller to indoor unit controller

• Detection of outdoor temperature and operation revolution control

• Defrost control in heating operation (Temp.

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

3. Contents of operation command signal (Serial signal) from indoor unit controller to outdoor unit controller

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

• Operation mode set on the remote controller

• Compressor revolution command signal defined

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

• Temperature of indoor heat exchanger

• For these signals ([Operation mode] and [Com-

pressor revolution] indoor heat exchanger temperature), the outdoor unit controller monitors the input current to the inverter, and performs the followed operation within the range that current does not exceed the allowable value.

4. Contents of operation command signal (Serial signal) from outdoor unit controller to indoor unit controller

The following signals are sent from the outdoor unit controller.

• The current operation mode

• The current compressor revolution

• Outdoor temperature

• Existence of protective circuit operation

For transferring of these signals, the indoor unit controller monitors the contents of signals, and judges existence of trouble occurrence. Contents of judgment are described below.

• Whether distinction of the current operation status meets to the operation command signal

• Whether protective circuit operates When no signal is received from the outdoor unit controller, it is assumed as a trouble.

Page 34

9-2. Operation Description

FILE NO. SVM-19040

- 34 -

Basic operation ........................................................................................................... 35

Operation control ................................................................................................... 35

Cooling/Heating operation ..................................................................................... 36

AUTO operation .....................................................................................................

DRY operation ........................................................................................................ 36

Indoor fan motor control ............................................................................................. 37

Outdoor fan motor control........................................................................................... 40

Capacity control .......................................................................................................... 41

Current release control ............................................................................................... 41

Release protective control by temperature of indoor heat exchanger........................ 42

Defrost control (Only in heating operation) ................................................................ 43

Louver control ............................................................................................................. 44

Louver position ....................................................................................................... 44

Air direction adjustment ......................................................................................... 44

Swing ..................................................................................................................... 44

ECO operation ............................................................................................................ 45

10.

Temporary operation................................................................................................... 46

11.

Discharge temperature control ................................................................................... 46

12.

High pressure control ................................................................................................. 46

13.

Pulse Modulating valve (P.M.V.) control ..................................................................... 47

14.

Self-Cleaning function ................................................................................................ 48

15.

Remote-A or B selection ............................................................................................ 50

16.

Hi-POWER Mode ...................................................................................................... 50

17.

Display lamp brightness adjustment ......................................................................... 51

18.

Oper

ation mode select table ..................................................................................... 51

19.

QUIET mode ............................................................................................................... 52

20.

Silent Operation .......................................................................................................... 52

9-3. Auto Restart Function ..

3-1. How to Set the A uto Restart Function ....................................................................... 53

3-2. How to Cancel the Au to Restar t Function ................................................................. 54

3-3. Power Failure During Timer Operation .................................................................... 54

9-4. Remote Controller and Its Fuctions

4-1. Parts Name of Remote Contr oller .............................................................................. 55

4-2. Operation of remote control ...................................................................................... 55

4-3. Name and Functions of Indications on Remote Contr oller ........................................ 57

Page 35

Item

FILE NO. SVM-19040

- 35 -

Operation flow and applicable data, etc.

Description

1. Basic operation

1. Operation control

Receiving the user’s operation condition setup, the operation statuses of indoor/outdoor units are controlled.

1) The operation conditions are selected by the remote controller as shown in the below.

2) A signal is sent by ON button of the remote controller.

3) The signal is received by a sensor of the indoor unit and processed by the indoor controllers as shown in the below.

4) The indoor controller controls the indoor fan motor and louver motor.

5) The indoor controller sends the operation command to the outdoor controller, and sends/receives the control status with a serial signal.

6) The outdoor controller controls the operation as shown in the left, and also controls the compressor, outdoor fan motor, 4-way valve and pulse Modulating valve.

Selection of

operation conditions

ON/OFF

Remote controller

Control contents of remote controller

• ON/OFF

• Operation select (AUTO/COOL/DRY/HEAT/FAN ONLY)

• Temperature setup

• Air direction

• Swing

• Air volume select (AUTO/LOW/LOW+/MED/MED+/HIGH)

• ECO

• SILENT

• OFF timer setup

• Hi-POWER

Signal receiving

Indoor unit control

Operation command

Serial signal send/receive

Outdoor unit control

Indoor unit

Indoor unit control

• Command signal generating function of indoor unit operation

Calculation function (temper

•

• Activation compensation function of indoor fan

• Cold draft preventive function

• Timer function

• Indoor heat exchanger release control

ature calculation)

Outdoor unit

Outdoor unit control

• Frequency control of inverter output Waveform composite function

•

• Calculation function (Temperature calculation)

• AD conversion function

k heating function

Quic

•

• Delay function of compressor reactivation

• Current release function

• GTr over-current preventive function Defrost operation function

•

Inverter

• Indoor fan motor

• Louver motor

•

Compressor

• Outdoor fan motor

• 4-way valve Pulse Modulating valve

• (P.M.V.)

Page 36

Item

FILE NO. SVM-19040

- 36 -

Operation flow and applicable data, etc.

Description

1. Basic operation

2. Cooling/Heating operation

The operations are performed in the following parts by controls according to cooling/heating conditions.

1) Receiving the operation ON signal of the remote controller, the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit.

2) At the indoor unit side, the indoor fan is operated according to the contents of “2. Indoor fan motor control” and the louver according to the contents of “9. Louver control”, respectively.

3) The outdoor unit controls the outdoor fan motor, compressor, pulse Modulating valve and 4-way valve according to the operation signal sent from the indoor unit.

Operation ON

Indoor unit control

Sending of operation command signal

Outdoor unit control

3. AUTO operation

Selection of operation mode As shown in the following figure, the operation starts by selecting automatically the status of room temperature (Ta) when starting AUTO operation.

*1. When reselecting the operation mode, the fan

speed is controlled by the previous operation mode.

Cooling operation

Ts + 1

Monitoring (Fan)

Ts – 1

Heating operation

Setup of remote controller

Indoor fan motor control / Louver control / Operation Hz Control (Requierment)

Compressor revolution control / Outdoor fan motor control / Operation Hz control (Include limit control) 4-way valve control In cooling operation:

In heating operation: Pulse Modulating valve control

[ ]

1) Detects the room temperature (Ta) when the operation started.

2) Selects an operation mode from Ta in the left figure.

3) Fan operation continues until an operation mode is selected.

4) When AUTO operation has started within 2 hours after heating operation stopped and if the room temperature is 20°C or more, the fan operation is performed with ”Super Ultra LOW” mode for 3 minutes. Then, select an operation mode.

5) If the status of compressor-OFF continues for 15 minutes the room temperature after selecting an operation mode (COOL/HEAT), reselect an operation mode.

OFF

4. DRY operation

DRY operation is performed according to the difference between room temperature and the setup temperature as shown below.

In DRY operation, fan speed is controlled in order to prevent lowering of the room temperature and to avoid air flow from blowing directly to persons.

[°C]

+ +

1.0

0.5

L– (W5)

(W5+W3) / 2

SUL (W3)

Tsc

Fan speed

1) Detects the room temperature (Ta) when the DRY operation started.

2) Starts operation under conditions in the left figure according to the temperature difference between the room temperature and the setup temperature (Tsc). Setup temperature (Tsc) = Set temperature on remote controller

(Ts) + (0.0 to 1.0)

3) When the room temperature is lower 1°C or less than the setup temperature, turn off the compressor.

Page 37

Item

FILE NO. SVM-19040

- 37 -

Operation flow and applicable data, etc.

Description

2. Indoor fan motor control

COOL ON

Fan speed setup

AUTO

[°C]

+2.5

+2.0

+1.5

+1.0

(This operation controls the fan speed at indoor unit side.) The indoor fan (cross flow fan) is operated by the phase-

control induction motor. The fan rotates in 5 stages in MANUAL mode, and in 5 stages in AUTO mode, respectively. (Table 1)

MANUAL

(Fig. 1)

Indication

L L+ M M+ H

Fan speed

(L + M) / 2

(M + H) / 2

(Fig. 2)

Air volume AUTO

M+(WC)

*3 : Fan speed = (M + –L) x 3/4 + L

*4 : Fan speed = (M + –L) x 2/4 + L

*5 : Fan speed = (M + –L) x 1/4 + L

* Symbols

UH : Ultra High H : High M+ : Medium+ M : Medium L+ : Low+ L: Low L- : Low– UL : Ultra Low SUL : Super Ultra Low

* The fan speed broadly varies due

to position of the louver, etc. The described value indicates one under condition of inclining downward blowing.

1) When setting the fan speed to L, L+, M, M+ or H on the remote controller, the operation is performed with the constant speed shown in Fig. 1.

2) When setting the fan speed to AUTO on the remote controller, revolution of the fan motor is controlled to the fan speed level shown in Fig. 2 and Table 1 according to the setup temperature, room temperature, and heat exchanger temperature.

+0.5

Tsc

L(W7)

(Linear approximation from M+ and L)

(Table 1) Indoor fan air flow rate

Fan speed level

WF UH 1050 484 1050 618 1080 504 1080 640 WE UH H 1050 484 1050 618 1080 504 1080 640 WD H M+ UH 1020 465 1000 581 1050 484 1030 603 WC M+ H 970 432 910 514 1000 452 940 536 WB WA M W9 L+ 810 327 720 373 820 334 730 380 W8 L+ L L+ 700 255 620 298 710 262 620 298 W7 L L- 600 190 580 268 600 190 580 268 W6 L- L 570 170 580 268 570 170 580 268 W5 UL UL L- 550 157 550 246 550 157 550 246 W4 UL 550 157 550 246 550 157 550 246 W3 SUL SUL 540 151 520 224 540 151 520 224 W2 SUL 520 138 520 224 520 138 520 224 W1 500 125 500 209 500 125 500 209

Mode

Cool Heat Dry Fan speed Air flow rate Fan speed Air flow rate

M+ 890 380 830 454 910 393 850 469

(rpm)

810 327 830 454 820 334 850 469

RAS-05TKVG-EE

Cooling Heating Cooling Heating

m3/hr

Fan speed Air flow rate

(rpm) m3/hr

Fan speed Air flow rate

(rpm) m3/hr

RAS-07TKVG-EE

(rpm)

m3/hr

Page 38

Item Operation flow and applicable data, etc.

FILE NO. SVM-19040

- 38 -

2. Indoor fan motor control

Description

Fan speed level

WF UH 1110 524 1110 663 1200 582 1200 730 WE UH H 1110 524 1110 663 1200 582 1200 730 WD H M+ UH 1060 491 1060 626 1170 563 1080 640 WC M+ H 960 425 960 551 1120 530 1020 596 WB WA M

W9 L+ 750 288 750 395 900 386 840 462

W8 L+ L L+ 640 216 640 313 770 301 720 373

W7 L L- 600 190 600 283 640 216 660 328

W6 L- L 600 190 600 283 620 203 660 328

W5 UL UL L- 570 170 570 261 600 190 600 283

W4 UL 570 170 570 261 600 190 600 283

W3 SUL SUL 520 138 520 224 540 151 520 224

W2 SUL 520 138 520 224 520 138 520 224

W1 500 125 500 209 500 125 500 209

Fan speed level

WF UH 1170 563 1170 707 WE UH H 1170 563 1170 707 WD H M+ UH 1110 524 1120 670 WC M+ H 1060 491 1000 581 WB WA M

W9 L+ 850 353 750 395 W8 L+ L L+ 720 268 620 298 W7 L L- 600 190 610 291 W6 L- L 590 183 610 291 W5 UL UL L- 580 177 600 283 W4 UL 580 177 600 283 W3 SUL SUL 540 151 520 224 W2 SUL 520 138 520 224 W1 500 125 500 209

Mode

Cool Heat Dry Fan speed Air flow rate Fan speed Air flow rate

M+ 870 367 870 484 1010 458 960 551

Mode

Cool Heat Dry Fan speed Air flow rate

M+ 950 419 880 492

(rpm)

870 367 870 484 900 386 960 551

(rpm)

850 353 880 492

RAS-10TKVG-EE RAS-13TKVG-EE

Cooling Heating Cooling Heating

m3/hr

RAS-16TKVG-EE

Cooling Heating

m3/hr

Fan speed Air flow rate

(rpm) m3/hr

Fan speed Air flow rate

(rpm) m3/hr

Fan speed Air flow rate

(rpm) m3/hr

RAS-18TKVG-EE

Cooling Heating

Fan speed Air flow rate

(rpm)

1250 636 1250 746 1250 636 1250 746 1200 585 1150 692 1150 553 1110 663 1100 530 1030 603 1000 452 930 528

950 419 850 469 850 353 820 447 800 650 182 700 357

580 177 580 177 600 283 540 151 520 224 520 138 520 224 500 125 500 209

m3/hr

190

(rpm)

Fan speed Air flow rate

(rpm) m3/hr

750 395

650 320

m3/hr

Page 39

Item

[C]

5.5

)

(

FILE NO. SVM-19040

- 39 -

Operation flow and applicable data, etc.

Description

2. Indoor fan motor control

HEAT

Fan speed setup

AUTO

TC ≥ 42°C

MANUAL

Indication Fan speed

L L+ M M+ H

YES

(Fig. 3)

(L + M) / 2

(M + H) / 2

Min air flow rate contro

Limited to Min WD tap

1) When setting the fan speed to L, L+, M, M+ or H on the remote controller, the operation is performed with the constant speed shown in Fig. 3 and Table 1.

2) When setting the fan speed to AUTO on the remote controller, revolution of the fan motor is controlled to the fan speed level shown in Fig. 5 according to the set temperature and room temperature.

3) Min air flow rate is controlled by temperature of the indoor heat exchanger (Tc) as shown in Fig. 4.

4) Cold draft prevention, the fan speed is controlled by temperature of the indoor heat exchanger (Tc) as shown in Fig. 6.

5) In order to prevent Cold draft when compressor step during heating

operation. Then louver will move to upper position and fan speed will

reduce or off.

*Fan speed=

Fan spee

AUT

L+ (W9)

M+ (WD)

H (WE

Basic fan contr

–0.

–1.0

–1.5

–2.0

–2.5

–5.0

(Fig. 4)

*1: Fan speed = (M + -L+) x 1 4 + L+ *2: Fan speed = (M + -L+) x 2 4 + L+ *3: Fan speed = (M + -L+) x 3 4 + L+ (Calculated with linear approximation from M+ and L+)

(Fig. 5)

No limi

W8) + W

Cold draft preventive control

T 46 46 45 45 33

33 33 21 32 32 20

*A+4 *A+4 *A+4

*A-4 *A-4 *A-4

* No limitation while fan speed MANUAL mode is in stabilit * A: When Tsc 24, A is 24, and when Tsc < 24, A is Ts

Tsc: Set valu

Fan speed MAN Fan speed AUTO in stabilit Fan speed AUTO in startin

H (WE

Line-approximate H and S

SUL (W2

AL in startin

L with Tc

Stop

(Fig. 6)

[In starting and in stability]

FAN AUTO

FAN Manual

In starting

• Until 12 minutes passed after operation start

• When 12 to 25 minutes passed after operation start and room temp. is 3°C or lower than set temp.

• Room temp. < Set temp. –4°C

In stability

• When 12 to 25 minutes passed after operation start and room temp. is higher than (set temp. –3°C)

• When 25 minutes or more passed after operation start

• Room temp. ≥ Set temp. –3.5°C

Page 40

Item

FILE NO. SVM-19040

- 40 -

Operation flow and applicable data, etc.

Description

3. Outdoor fan motor control

1) Outdoor unit

when the motor stopped.

The blowing air volume at the outdoor unit side is controlled. Receiving the operation command from the controller of

indoor unit, the controller of outdoor unit controls fan speed. * For the fan motor, a DC motor with non-stage variable

speed system is used. However, it is limited to 8 stages for reasons of controlling.

Air conditioner ON

(Remote controller)

Indoor unit controller

operation

command

(Outdoor fan control)

2) Fan speed ≥ 400

YES

OFF status of

fan motor continues.

Fan motor ON

1) The operation command sent from the remote controller is processed by the indoor unit controller and transferred to the controller of the outdoor unit.

2) When strong wind blows at outdoor side, the operation of air conditioner continues with the fan motor stopped.

3) Whether the fan is locked or not is detected, and the operation of air conditioner stops and an alarm is displayed if the fan is locked.

4) According to each operation mode, by the conditions of outdoor temperature (To) and compressor revolution, the speed of the outdoor fan shown in the table is selected.

3) Fan lock

YES

Air conditioner

OFF

Alarm

display

Motor operates as shown in the table below.

~ 31.7

RAS-05TAVG-EE RAS-05TAVG-EE RAS-07TAVG-EE RAS-07TAVG-EE

Compressor speed Compressor speed

Fan speed range

When To is abnormal

RAS-10TAVG-EE RAS-10TAVG-EE RAS-13TAVG-EE RAS-13TAVG-EE RAS-16TAVG-EE RAS-16TAVG-EE RAS-18TAVG-EE RAS-18TAVG-EE

In cooling operation In heating operation

Hz < 20.4

Hz < 13.8

To ≥ 38°C f6 fB f8 fE fA fE To ≥ 10°C f7 f8 f9 To ≥ 28°C f5 fA f7 fE f9 fE To ≥ 5°C f9 fB fE To ≥ 15°C f3 f7 f5 f9 f7 fB To ≥ -3°C fE fE fE To ≥ 5.5°C f2 f5 f4 f7 f6 f9 To ≥ -10°C fE fE fE

To ≥ 0°C f1 f3 f3 f5 f4 f7 To ≥ 0°C f1 f2 f2 f4 f3 f5 fE fE fE

MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX

OFF fB OFF fE f1 fE

20.4 ≤ Hz < 32.4 20.4 ≤ Hz < 46.2

20.4 ≤ Hz < 42.0

20.4 ≤ Hz < 60.6

20.4 ≤ Hz < 75.0

13.8 ≤ Hz < 30.6

32.4 ≤ Hz

42.0 ≤ Hz

60.6 ≤ Hz

75.0 ≤ Hz

30.6 ≤ Hz

Fan speed range

When To is abnormal

To < - 10°C

20.4 ≤ Hz < 59.4

Hz < 20.4

Hz < 16.8

20.4 ≤ Hz < 78.0

20.4 ≤ Hz < 67.8

20.4 ≤ Hz < 75.0

16.8 ≤ Hz < 48.6 48.6 ≤ Hz

fE fE fE

46.2 ≤ Hz

59.4 ≤ Hz

78.0 ≤ Hz

67.8 ≤ Hz

75.0 ≤ Hz

Outdoor fan speed (rpm)

Model name

RAS-05TAVG-EE 0 300 RAS-07TAVG-EE 0 300 RAS-10TAVG-EE 0 300 RAS-13TAVG-EE 0 300 370 390 460 500 520 620 720 750 780 780 880 880 950 950 RAS-16TAVG-EE 0 200 300 300 360 440 500 550 600 650 700 700 800 950 950 950 RAS-18TAVG-EE 0 300 300 300 360 450 500 550 600 650 700 700 800 850 950 950

f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fA fB fC fD fE fF

390 460 500 520 620 720 750 780 780 900 900 900 900

370

390 460 500 520 620 720 750 780 780 900 900 900 900

370

390 460 500 520 620 720 750 780 780 900 900 900 900

370

Fan speed range

Page 41

Item

FILE NO. SVM-19040

- 41 -

Operation flow and applicable data, etc.

Description

4. Capacity control

Remote controller Indoor unit

The cooling or heating capacity depending on the load is adjusted.

According to difference between the setup value of temperature and the room temperature, the capacity is adjusted by the compressor revolution.

Set temp. (Ts)

Ts –Ta

Correction of Hz signal

Detection of electromotive force

of compressor motor winding

Detection of motor speed and rotor position

Correction value of Hz signal ≤ Operating Hz

verter output change

Commutation timing change

Room temp. (Ta)

1) The difference between set temperature on remote controller (Ts) and room temperature (Ta) is calculated.

2) According to the temperature difference, the correction value of Hz signal which determines the compressor speed is set up.

3) The rotating position and speed of the motor are detected by the electromotive force occurred on the motor winding with operation of the compressor.

4) According to the difference resulted from comparison of the correction value of Hz signal with the present operation Hz, the inverter output and the commutation timing are varied.

5) Change the compressor motor speed by outputting power to the compressor.

* The contents of control

operation are same in cooling operation and heating operation

5. Current release control

Outdoor unit inverter main

circuit control current

Operating current ≤

Setup value

Low

Capacity control continues.

Mode

Outdoor temperature: To (°C)

To  45

Cooling

Heating

45 > To  40

To < 40 To  16

16 > To  11

To < 11

Change of compressor speed

This function prevents troubles on the electronic parts of the compressor driving inverter.

This function also controls drive circuit of the compressor speed so that electric power of the compressor drive circuit does not exceed the specified value.

Outdoor temp. To

Setup of current release point

High

Reduce compressor speed

Current decrease

Current Release Value (A)

RAS-05TAVG-EE RAS-07TAVG-EE RAS-10TAVG-EE RAS-13TAVG-EE RAS-16TAVG-EE RAS-18TAVG-EE

5.8 5.8 5.8 5.8 7.2 8.8

6.2 6.2 6.2 6.6 7.7 8.8

3.6 4.8 5.6 6.8 8.5 8.5

7.2 7.2 7.2 6.7 10.0 9.5

5.8 6.2 6.7 6.7 9.0 8.9

4.3 5.1 6.2 6.6 8.0 8.2

1) The input current of the outdoor unit is detected in the inverter section of the outdoor unit.

2) According to the detected outdoor temperature, the specified value of the current is selected.

3) Whether the current value exceeds the specified value or not is judged.

4) If the current value exceeds the specified value, this function reduces the compressor speed and controls speed up to the closest one commanded from the indoor unit within the range which does not exceed the specified value.

Page 42

Item

FILE NO. SVM-19040

- 42 -

Operation flow and applicable data, etc.

Description

6. Release protective control by temperature of indoor heat exchanger

7°C

6°C

5°C

Indoor heat exchanger temperature

(Prevent-freezing control for indoor heat exchanger) In cooling/dry operation, the sensor of indoor heat

exchanger detects evaporation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value.

Usual cooling capacity control

When the value is in Q zone, the

compressor speed is kept.

Reduction of compressor speed

1) When temperature of the indoor heat exchanger drops below 5°C, the compressor speed is reduced. (P zone)

2) When temperature of the indoor heat exchanger rises in the range from 6°C to under 7°C, the compressor speed is kept. (Q zone)

3) When temperature of the indoor heat exchanger rises to 7°C or higher, the capacity control operation returns to the usual control in cooling operation. (R zone)

55°C

52°C

48°C

Indoor heat exchanger temperature

(Prevent-overpressure control for refrigerating cycle) In heating operation, the sensor of indoor heat ex-

changer detects condensation temperature and controls the compressor speed so that temperature of the heat exchanger does not exceed the specified value.

Reduction of compressor speed

When the value is

in Q zone, the compressor speed is kept.

Usual heating capacity control

1) When temperature of the indoor heat exchanger rises in the range from 52°C to 55°C, the compressor speed is kept. (Q zone)

When temperature of the indoor

heat exchanger drops in the range from 48°C to under 55°C, the compressor speed is kept. (Q zone)

2) When temperature of the indoor heat exchanger rises to 55°C or higher, the compressor speed is reduced. (P zone)

3) When temperature of the indoor heat exchanger does not rise to 52°C, or when it drops below to 48°C, the capacity control operation returns to the usual control in heating operation. (R zone)

Page 43

Item

FILE NO. SVM-19040

- 43 -

Operation flow and applicable data, etc.

Description

7. Defrost control (Only in heating operation)

(This function removes frost adhered to the outdoor heat exchanger.)

The temperature sensor of the outdoor heat exchanger (Te sensor) judges the frosting status of the outdoor heat exchanger and the defrost operation is performed with 4-way valve reverse defrost system.

Start of heating operation

TE(°C)0 10 15

‐2

‐5

‐10

‐25

* TheminimumTEvalueandTovaluebetween10and15minutesafterheatingoperationhas

started are stored in memory as TE0 and TO0, respectively.

Table 1

Defrost zone

A zone B zone C zone D zone

Table 2

Heating operation

(time)

a 37 37 43 51 55 55 b c d

The necessity of defrost operation is detected by the outdoor heat exchanger temperature. The conditions to detect the necessity of defrost operation differ in A, B, or C zone each. (Table 1)

c b a d

Azone

Bzone

In normal TO In abnormal TO ***

TO> -10 °C & (TE0-TE)-(TO0-TO)≥3°C & SH-SH0≤2

TO> -10 °C & (TE0-TE)-(TO0-TO)≥2°C & SH-SH0≤2

To> -10 °C & TE≤ -25°C & SH-SH0≤2

TO > -10 °C & Accumulate heating operation time > e minute & TE < 0 °C

Model

05TKVG-EE 07TKVG-EE 10TKVG-EE 13TKVG-EE 16TKVG-EE 18TKVG-EE

31 31

31 31 31 31 31

39 49 53 53

Czone

TE0-TE≥3°C & SH-SH0≤2

TE0-TE≥2°C & SH-SH0≤2

Dzone

(min.)

• Defrost operation in A to C zones

1) Stop operation of the compressor for 40 seconds.

2) Invert (OFF) 4-way valve 40 seconds after stop of the compressor.

3) The outdoor fan stops at the same time when the compressor stops.

4) When temperature of the indoor heat exchanger becomes 38°C or lower, stop the indoor fan.

• Returning conditions from defrost

operation to heating operation

1) Temperature of outdoor heat exchanger rises to +8°C or higher for 3 seconds.

2) Temperature of outdoor heat exchanger is kept at +7°C or higher for 60 seconds.

3) Defrost operation continues for 10 minutes.

1) Stop operation of the compressor for approx. 40 seconds.

2) Invert (ON) 4-way valve approx. 30 seconds after stop of the compressor.

3) The outdoor fan starts rotating at the same time when the compressor starts.

Page 44

Item

FILE NO. SVM-19040

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Operation flow and applicable data, etc.

Description

8. Louver control

1) Louver position

This function controls the air direction of the indoor unit.

• The position is automatically controlled according to the operation

mode (COOL/HEAT).

• The set louver position is stored in memory by the microcomputer,

and the louver returns to the stored position when the next operation is performed. (Cooling/Heating memory position)

The angle of the louver is indicated as the louver closes fully is 0°.

1) Louver position in cooling operation

Cooling operation/

AUTO (COOL)

Initial setting of "Cooling storage position" Louver : Directs downward (40.9°)

2) Louver position in heating operation

Heating operation/

AUTO (HEAT)

2) Air direction adjustment

Horizontal

blowing

3) Swing

Inclined blowing

• Swing operation is perfor in range 35° with the Fixed position as

the center.

• If the swing range exceeded either upper or lower limit position,

swing operation is perfomed in range 35° from the limit.

Initial setting of “Heating storage position” Louver : Directs downward (80.5°)

Air direction

Upper Limit Position.

Swing

range 35

Fixed Position before start swing.

Blowing

downward

17.5

Lower Limit Position.

Inclined blowing

Upper Limit Position.

Fixed Position before start swing

Swing range 35

• The louver position can

be arbitrarily set up by pressing [FIX] button.

Horizontal

blowing

• Swing

When pressing [SWING] button during operation, the louver starts swinging.

Lower Limit Position

Page 45

Item

FILE NO. SVM-19040

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Operation flow and applicable data, etc.

Description

9. ECO operation

+6.5 +6.0

+5.5

+5.0 +4.5 +4.0

+3.5

+3.0

+2.5

+2.0 +1.5 +1.0

+0.5 TSC

-0.5

-1.0

-2.0

When pressing [ECO] button on the remote controller, a Economic operation is performed.

This function operates the air conditioner with the difference between the set and the room temperature as shown in the following figure.

Frequency

Zone

Dry Max

*12 *11

*10

8 7

4 3

Min

OFF

1H 2H

Time

1) The control target temperature increase 0.5ºC per hour up to 2ºC starting from the set temperature

when ECONO has been received.

2) The indoor fan speed is depend on presetting and can change every speed after setting ECO

FAN

operation.

3) The compressor speed is controlled as shown in the left figure.

Fan speed depend on presetting and can change every speed.

05TKVG-EE

Cool min

DRY max

–0.5

–1.0 –1.5

B –2.0 –2.5 –3.0 –4.0 –5.0 –6.0 –7.0 –8.0

(Room temp. – Set temp.)

–9.0

–10.0 –11.0

* 12 (DRY max - COOL min) /6 x 5 + COOL min * 11 (DRY max - COOL min) /6 x 4 + COOL min * 10 (DRY max - COOL min) /6 x 3 + COOL min

* 9 (DRY max - COOL min) /6 x 2 + COOL min * 8 (DRY max - COOL min) /6 x 1 + COOL min

07TKVG-EE

35 35

30 minutes

10TKVG-EE

→ Time Compressor

13TKVG-EE 16TKVG-EE

35 35

speed

1) Setting the compressor speed to

0Hz

A zone

aHz

2) The indoor fan speed is depend

B zone

a to cHz

C zone

cHz

18TKVG-EE

Max. aHz, the temperature zone in which the operation can be

performed with Max. cHz is

gradually widened after 30 minutes passed when starting ECO operation.

on presetting and can change every speed after setting ECO

operation.

05TKVG-EE

31 31

07TKVG-EE

10TKVG-EE

13TKVG-EE 16TKVG-EE

55 45

18TKVG-EE

Page 46

Item

FILE NO. SVM-19040

- 46 -

Operation flow and applicable data, etc.

Description

10. Temporary operation

Pressing [RESET] button starts the temporary operation of [AUTO] operation. When keeping [RESET] button pressed for 10 seconds or more, the temporary [COOL] operation is performed.

1) When pressing [RESET] button, the temporary [AUTO] operation starts.

2) When keeping [RESET] button pressed for 3 seconds or more, Pi, Pi, Pi sound is heard and [AUTO RESTART] control is changed.

Press RESET button.

3) When keeping [RESET] button pressed for 10 seconds or more, “Pi” sound is heard and the temporary [COOL]

Did you press [RESET] button

for 3 seconds or more?

YES

Did you press [RESET] button

for 10 seconds or more?

Switch to [AUTO RESTART] control.

Temporary [AUTO] operation

YES

Temporary [COOL] Operation

operation starts.

4) To stop the temporary operation, press the button again.

11. Discharge temperature control 1. Purpose

Td value

117°C 115°C 106°C 103°C

96°C

Control operation

Judges as an error and stops the compressor. Reduce the compressor speed. Reduce slowly compressor speed. Keeps the compressor speed. If the operation is performed with lower speed than one

commanded by the serial signal, speed is slowly raised up to the commanded speed.

Operates with speed commanded by the serial signal.

This function detects error on the refrigerating cycle or error on the compressor, and performs protective control.

2. Operation

• Control of the compressor speed

The speed control is performed as described in the left table based upon the discharge temperature.

12. High pressure control

Cooling

Heating

(TE)

(TC)

63°C

62°C

63°C

57°C

61°C

55°C

59°C

53°C

49°C

55°C

Control operation

1. Purpose

This function detects error on the refrigerating cycle or error on the compressor, and performs protective control.

2. Operation

Control of the compressor speed The speed control is performed as described in the left table based upon the heat exchanger temperature (TE, TC).

Page 47

Item

FILE NO. SVM-19040

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Operation flow and applicable data, etc.

Description

13. Pulse Modulating valve (P.M.V.)

control

SH control

This function controls throttle amount of the refrigerant in the refrigerating cycle.

According to operating status of the air conditioner, this function also controls the open degree of valve with an expansion valve with pulse Modulation.

Starting up

Initialize

Move to

initial position

Compressor ON

release control

1) When starting the operation, move the valve once until it fits to the stopper. (Initialize)

* In this time, “Click” sound may be

heard.

2) Adjust the open degree of valve by super heat amount. (SH control)

3) If the discharge temperature was excessively up, adjust the open degree of valve so that it is in the range of set temperature. (Discharge temp. control)

4) When defrost operation is performed, the open degree of valve is adjusted according to each setup conditions during preparation for defrost and during defrost operation (4-way valve is inversed.).

5) To turn off the compressor while the air conditioner stops by control of the thermostat or by remote controller, adjust the open degree of valve to the setup value before stop of the compressor.

PMV open degree control

Stop by

remote controller

Room temp. sensor

(Ta sensor) control

Power OFF

* SH (Super Heat amount) =

Ts (Temperature of suction pipe of the compressor) – Tc or Te (Heat exchanger temperature at evaporation side)

* PMV: Pulse Modulating Valve

Defrost

Page 48

Item

FILE NO. SVM-19040

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Operation flow and applicable data, etc.

Description

14. Self-Cleaning

function

Unit now performing cooling or dry operation

Press “STOP” button

Only timer indicator lights, and Self Cleaning operation starts

Time set now elapses

Operation stops

1. Purpose

The Self-Cleaning operation is to minimize the

growth of mold, bacteria etc. by running the fan and drying so as to keep the inside of the air conditioner clean.

Self-Cleaning operation

When the cooling or dry operation shuts

down, the unit automatically starts the SelfCleaning operation which is then performed for the specified period based on duration of the operation which was performed prior to the shutdown, after which the Self-Cleaning operation stops. (The Self-Cleaning operation is not performed after a heating operation.)

2. Operation

1) When the stop signal from the remote

controller or timer-off function is received, only the timer indicator light.

2) The period of the Self-Cleaning operation

is determined by the duration of the operation performed prior to the reception of the stop code.

3) After the Self-Cleaning operation has

been performed for the specified period, the unit stops operating.

• During Self-Cleaning operations: The louver opens slightly. The indoor fan operates continuously at a speed of 500 rpm.

Self-Cleaning operation times

Self-Cleaning operation time

No Self-Cleaning operation

performed (0 minutes)

30 mins.

Cooling: Auto (cooling) Dry

Heating: Auto (heating)

Auto (fan only)

Shutdown

Operation time

Up to 10 minutes

10 minutes or longer

No Self-Cleaning operation performed

• To stop an ongoing Self-Cleaning operation at any time Press the start/stop button on the remote controller twice during the Self-Cleaning operation. (After pressing the button for the first time, press it for the

second time without delay (within 10 minutes).)

Page 49

Item

FILE NO. SVM-19040

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Operation flow and applicable data, etc.

Description

14. Self-Cleaning function

14-1-1. Self-Cleaning diagram

Operation display ON OFF OFF

FCU fan

FCU louver OPEN OPEN (12.7º) CLOSE

Timer display

Compressor

CDU fan ON or OFF

rpm is depend on presetting. (500RPM)

depend on presetting of timer function. depend on presetting of timer function.

depend on presetting per room temperature.

Cool mode or dry mode

operation more than 10 mins.

ON ON

ON or OFF

Self-Cleaning mode

Turn off by remote controller or

timer-off function.

OFF OFF

operate 30 mins.

Automatically turn-off.

OFF

ON or OFF

14-1-2. Self-Cleaning function release

•

How to set/cancel Self-Cleaning function

To set/cancel the Self-Cleaning function, proceed as follows:

•

Setting diagnosis code "06" on remote controlle (See detail of setting diagnosis code in 11-4-1)

•

Turn on the power supply to air

conditioner, after

Set or Cancel Self-Cleaning function by push the RESET button on air conditioner. When setting is changed, the sound warning will alarm "Beep". The setting is changed following below.

OFF

that press [RESET] button on air conditioner 1 time to turn on the air conditioner (The LED display will show in operation LED)

•

Take the remote controller to direction of LED

display on air conditioner, press button "up" (see

• Turn on air conditioner again by remote controller

to confirm setting.

OFF

detail of setting diagnosis code in 11-4-1) 1 time to send the code "07" *(within 3 sec. after press [RESET] button),* then air conditioner will shutdown automatically. Also, LED display will show flash follow the able below.

Operation time

Self-cleaning

function

OFF

Note) Table above will show current status of

Self-Cleaning function

Operation LED

flash 1 Hz

Timer LED

not flash

Flash 1 Hz

OPERATION / RESET Button

Page 50

Item

FILE NO. SVM-19040

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Operation flow and applicable data, etc.

Description

15. Remote-A or B selection

Setting the remote controller

To separate using of remote control for each indoor unit in case of 2 air conditioner are installed nearly.

Remote Control B Setup.

1) Press [RESET] button on the indoor unit to turn the air conditioner ON.

2) Point the remote control at the indoor unit.

3) Push and hold [CHECK] button on the Remote Control by the tip of the pencil. "00" will be shown

shown on the display (Picture ).

4) Press [MODE] during pushing [CHECK]."B" will show on the display and "00" will disappear and

the air conditioner will turn OFF. The Remote

Control B is memorized (Picture ).

Note : 1. Repeat above step to reset Remote Control

to be A.

2. Remote Control A has not "A" display.

3. Default setting of Remote Control from factory is A.

1. Purpose

This operation is to operate only one indoor unit using one remote controller.

2. Description

When operating one indoor unit in a situation where two indoor units have been installed in the same room or nearby rooms, this operation prevents the remote controller signal from being received simultaneously by both units, thus preventing both units from operating.

3. Operation

The indoor unit on which the remote controller selection has been set to B receives the signal of the remote controller also set to B. (At the factory the remote controller selection is set to A on all the indoor units. There is no A setting display.)

6. Hi-POWER

Mode

([Hi-POWER] button on the remote controller

is pressed)

When [Hi-POWER] button is pressed while the indoor unit is in Auto, Cooling or Heating operation, HiPOWER mark is indicated on the display of the remote controller and the unit operates as follows.

1. Automatic operation

• The indoor unit operates in according to the

current operation.

2. Cooling operation

• The preset temperature drops 1ºC

(The value of the preset temperature on the

remote controller does not change.) The indoor unit's fan speed level increase 1 tap

3. Heating operation

• The preset temperature increases 2ºC

(The value of the preset temperature on the

remote controller does not change.) The indoor unit's fan speed level increase 1 tap

4. The Hi-POWER mode can not be set in Dry operation

Page 51

Item

FILE NO. SVM-19040

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Operation flow and applicable data, etc.

Description

17. Display lamp brightness adjustment

To decrease the display lamp brightness or turn it off.

1. Press and hold for 3 seconds until brightness level ( , , or ) is shown on remote control LCD then release the button.

2.. Press

Remote control

LCD

• In the examples of

Rise

Decrease

Operation display Brightness

Lamp illuminates full brightness.

Lamp illuminates 50% brightness.

Lamp illuminates 50% brightness and the operation lamp is turned off.

All lamps are turned off.

to adjust brightness in 4 levels.

and , the lamp illuminates for 5 seconds before going off.

100%

50%

All turned off

Operation

18.

mode select table

Operating system setting

Purpose Choosing the operating system as appropriate in real condition

Operation Factory default setting prefer "Heat pump" system. Through it is able to cooling only system heating only system or return to factory default.

•

Do cut J804 for cooling only system

•

Do cut J805 for heating only system

•

Do cut both of J804 and J805 for return to factory default.

Page 52

Item

FILE NO. SVM-19040

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Operation flow and applicable data, etc.

Description

19. QUIET mode

20. Silent

Operation

The "Quiet mode" selected from [ FAN ] button;

- The fan of the indoor unit will be restricted the

revolving speed at speed UL.

- The compressor speed is controlled as shown

in the figure.

Model Cool/Heat min 20.4 20.4 Quiet Cool (Hz) 20.4 21.6 Quiet Heat (Hz) 23.4 30.6

Model Cool/Heat min 20.4 20.4 Quiet Cool (Hz) Quiet Heat (Hz)

05K 07K

13K 16K

34.2 40.8

32.4 45.0

10K

20.4

31.2

39.6

18K

16.2

26.4

37.2

The "Quiet mode" is canceled by [ FAN ] button is pressed to select other speed.

Silent button on remote controller is pressed. Silent : Cooling/heating capacity is limited maximum for 70% of rated. Only compressor speed is limited.

Quiet mode is the system which, control the revolving speed of indoor fan to work constantly at lower than speed L. In addition, noise level of indoor unit is less than usual.

Remarks :

1. Quiet mode is unable to work in dry mode.

2. Quiet mode is appropriate to work with less

cooling load and less heating load condition. Because of the fan speed may not enough the cooling capacity or heating capacity.

This function is used when the user need to keep silent at outdoor side. It is limit maximum compressor speed. Sound level can be implemented by silent level.

Sound level:

Rated level > Silent

Note:

Due to Silent operation reason, In adequate cooling/heating capacity may occur.

Silent maximum Operation Hz

Model

Cooling Heating

RAS-05TKVG-EE

RAS-07TKVG-EE

RAS-10TKVG-EE

RAS-13TKVG-EE

RAS-16TKVG-EE

RAS-18TKVG-EE

ECO AND SILENT OPERATION

Press

: Start and stop the operation.

NORMAL ECO SILENT

25.8 36.0

37.8 48.0

46.2 57.0

55.2 57.0

44.4 65.4

36.0 58.2

Page 53

9-3. Auto Restart Function

FILE NO. SVM-19040

- 53 -

This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down. The operation will resume without warning three minutes after power is restored.

This function is not set to work when shipped from the factory. Therefore it is necessary to set it to work.

9-3-1. How to Set the Auto Restart Function

To set the auto restart function, proceed as follows: The power supply to the unit must be on ; the function will not set if the power is off. Press the [RESET] button located in the center of the front panel continuously for three seconds. The unit receives the signal and beeps three times. The unit then restarts operating automatically in the event of power supply being accidentally shut down.

• When the unit is standby (Not operating)

Operation

Press [RESET] button for more than three seconds. (Less than 10 seconds)

OPERATION / RESET Button

• When the unit is in operation

Operation

Press [RESET] button for more than three seconds. (Less than 10 seconds)

Motions

The unit is on standby.

↓

The unit starts to operate. The white indicator is on.

↓ After approx. three seconds,

The unit beeps three times and continues to operate.

The white indicator flashes for 5 seconds.

If the unit is not required to operate at this time, press [RESET] button once more or use the remote controller to turn it off.

Motions

The unit is in operation. The white indicator is on.

↓

The unit stops operating. The white indicator is turned off.

• While the filter check indicator is on, the RESET button has the function of filter reset betton.

OPERATION / RESET Button

↓ After approx. three seconds,

The unit beeps three times. The white indicator flashes

for 5 seconds.

If the unit is required to operate at this time, press [RESET] button once more or use the remote controller to turn it on.

Page 54

9-3-2. How to Cancel the Auto Restart Function

FILE NO. SVM-19040

- 54 -

To cancel auto restart function, proceed as follows : Repeat the setting procedure : the unit receives the signal and beeps three times. The unit will be required to be turned on with the remote controller after the main power supply is turned off.

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

Operation

Press [RESET] button for more than three seconds. (Less than 10 seconds)

OPERATION / RESET Button

• When the system is operating

Operation

Press [RESET] button for more than three seconds. (Less than 10 seconds)

Motions

The unit is on standby.

↓

The unit starts to operate. The white indicator is on.

↓ After approx. three seconds,

The unit beeps three times and continues to operate. If the unit is not required to operate at this time, press [RESET]

button once more or use the remote controller to turn it off.

Motions

The unit is in operation. The white indicator is on.

↓

The unit stops operating. The white indicator is turned off.

The unit beeps three times. If the unit is required to operate at this time, press [RESET] button

once more or use the remote controller to turn it on.

OPERATION / RESET Button

9-3-3. Power Failure During Timer Operation

When the unit is turned off because of power failure during timer operation, the timer operation is cancelled. In that case, set the timer operation again.

NOTE :

The Daily Timer is reset while a command signal can be received from the remote controller even if it stopped due to a power failure.

↓ After approx. three seconds,

Page 55

9-4. Remote Controller and Its Fuctions

FILE NO. SVM-19040

- 55 -

9-4-1. Parts Name of Remoe Controller

Infrared signal emitter

Start/Stop button ( )

Mode select button (MODE)

Temperature button (TEMP)

Fan speed button (FAN)

Swing louver button (SWING)

Set louver button (FIX)

Off timer button (OFF)

High power button (Hi-POWER)

ECO/SILENT button (ECO/SILENT)

Clear button (CLEAR)

Check button (CHECK)

9-4-2. Operation of remote control

1. AUTOMATIC OPERATION

To automatically select cooling, heating or fan only operation.

MODE

1. Press

: Select A.

2 7

9 8 #

MODE

Hi POWER ECO

SILENT OFF

6 5

! "

2. Press

3. Press

: Set the desired temperature. Min. 17°C, Max. 30°C.

FAN

: Select AUTO, LOW , LOW+ , MED , MED+

, HIGH

, or QUIET .

2. COOLING / HEATING / FAN ONLY OPERATION

1. Press : Select Cool , Heat , or Fan only .

MODE

2. Press : Set the desired temperature.

Cooling / Heating : Min 17°C - Max 30°C Fan Only: No temperature indication

FAN

: Select AUTO, LOW , LOW+ , MED , MED+

, HIGH 3. Press

, or QUIET .

3. DRY OPERATION (COOLING ONLY)

For dehumidification, a moderate cooling performance is controlled automatically.

1. Press

2. Press

MODE

: Select Dry .

: Set the desired temperature. Min. 17°C, Max. 30°C

Note: Dry Mode fan speed is set to Auto only.

4. Hi-POWER OPERATION

To automatically control room temperature and airflow for faster cooling or heating operation (except in DRY and FAN ONLY mode).

Press : Start and stop the operation.

Note: Hi-POWER operation symbol will appear on remote control display.

Page 56

5. ECO / SILENT OPERATION

FILE NO. SVM-19040

- 56 -

ECO OPERATION

To automatically control room temperature to save energy (Except in DRY and FAN ONLY mode) Note: Cooling operation; the set temperature will increase automatically 1 degree/hour for 2 hours

(maximum 2 degree increase). For Heating operation the set temperature will decrease.

SILENT OPERATION

To reduce outdoor sound level during operation (Except in DRY and FAN ONLY mode)

Note: Though operating silently, the Heating or Cooling capacity is still prioritized to ensure having sufﬁcient comfort inside the room.

ECO and SILENT operation setting

Press

NORMAL

Note: ECO and SILENT operation symbol will appear on remote control display.

6. TIMER OPERATION

To automatically control room to save energy (except in DRY and FAN ONLY mode)

Press for enter OFF timer setting.

Press for select desired OFF timer. (0.5 - 12 hrs)

Press for set OFF timer.

Press again for cancel OFF timer.

Note: TIMER OPERATION symbol will appear on remote control display.

: Start and stop the operation.

➝

ECO

➝

Setting the OFF timer

SILENT

7. TEMPORARY OPERATION

In case of the misplaced or discharged remote control

•

Pressing the RESET button, the unit can start or stop without using the remote control.

•

Operation mode is set on AUTOMATIC operation, preset temperature is 24°C and fan operation is automatic speed.

8.AUTO RESTART OPERATION

To automatically restart the conditioner after the power failure (Power of the unit must be on.)

Setting

Press and hold the RESET button on the indoor unit for 3 seconds to set the operation.(3 beep sound and OPERATION lamp blink 5 time/sec. for 5 seconds) Do not operate ON timer and OFF timer.

Press and hold the RESET button on the indoor unit for 3 seconds to cancel the operation. (3 beep sound but OPERATION lamp does not blink)

•

In case of timer are set, AUTO RESTART OPERATION does not activate.

Page 57

9. MANUAL DEFORST OPERATION

FILE NO. SVM-19040

- 57 -

To defrosting the heat exchanger of the outdoor unit during Heating operation.

Press and hold

[ ] as picture 1 for 2 sec.

MODE

: for 5 sec. then remote control display will show

Hi POWER ECO

SILENT OFF

9-4-3. Name and Functions of Indications on Remote Controller

[Display]

All indications, except for the clock time indicator, are displayed by pressing the

1. Transmission mark

This transmission mark indicates when the remote controller transmits signals to the indoor unit.

2. Mode indicator

Indicates the current operation mode. (A : Auto, : Cool, : Dry,

: Heat, : Fan only)

4. FAN speed indicator

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

(

LOW , LOW+ , MED HIGH , and QUIET ) can be shown. Indicates AUTO when the operating mode is : Dry.

3. Temperature indicator

Indicates the temperature setting. (17°C to 30°C)

5. OFF TIMER indicator

Indicates when the OFF timer is setting press the OFF timer button and select off time by TEMP botton after that back to press OFF timer again to timer setting and push CLEAR button to stop the operation.

6. Hi-POWER indicator

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

7. ECO indicator

Indicates when the ECO is in Press the ECO/ button to start and stop operation.

8. A, B change indicator remote controller

When the remote controller switching function is set, “B” appears in the remote controller display. (When the remote controller setting is “A”, there is no indication at this position.)

MODE

Hi POWER ECO

SILENT OFF

button.

, MED+

activated.

Indicates when the SILENT operation start. Press the ECO/ button to start and stop operation.

NORMAL

➝

ECO

➝

SILENT

9. SILENT indicator

Page 58

10. INSTALLATION PROCEDURE

FILE NO. SVM-19040

- 58 -

10-1. Installation Diagram of Indoor and Outdoor Units

Hook

300 mm or more

Installation

plate

Shield pipe

Batteries

(Attach to the front panel.)

Flat head wood screw

Remote control holder

300 mm or more

Air filter

65 mm or more

Hook

Refrigerant piping must be protected from physical damage. Install a plastic cover or equivalent.

Vinyl tape Apply after carrying out a drainage test.

For the rear left, bottom left and left piping

Wall

Cut out a piece of SPACER from indoor unit packaging box, roll it and insert between the indoor unit and wall to tilt the indoor unit for better operation.

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

Right

Rear right

Bottom right

Rear left

Left

Bottom left

Do not allow the drain hose to get slack.

Cut the piping hole sloped slightly.

Make sure to run the drain hose sloped downward.

Wireless remote control

RAS-05, 07, 10, 13TAVG-EE

C 600 600 D 400 600 E 45 100

F 100 100

RAS-16, 18TAVG-EE

• Loading Batteries

1. Remove the battery cover.

2. Insert 2 new batteries (AAA type)

following the (+) and (-) positions.

E mm or more

C mm or more

F mm or more

D mm or more

Saddle

Extension drain hose (Not available, provided by installer)

C mm or more

Before installing the wireless remote controller

Insulate the refrigerant pipes separately with insulation, not together.

6 mm thick heat resisting polyethylene foam

3 Batteries

2 Wireless remote controller

Page 59

10-2. Installation

FILE NO. SVM-19040

- 59 -

10-2-1. Optional installation parts

Part

code

Refrigerantpiping Liquidside:Ø6.35mm

Gasside:Ø12.70mm

Pipeinsulatingmaterial

(polyethylenefoam,6mmthick)

Putty,PVCtapes

Parts name Q’ty

(RAS-05,07,10,13TKVG-EE)

(RAS-16,18TKVG-EE)

500 mm

Air inlet

97 mm

Ø25 mm

53 mm

300 mm

280 mm

Air outlet

Drain outlet

One

each

One

each

340 mm

320 mm

108 mm 125 mm

28 mm

Ø25 mm

86 mm

Air outlet

600 mm

Air inlet

102 mm

90 mm

Drain outlet

RAS-05, 07, 10, 13TAVG-EE

RAS-16, 18TAVG-EE

Fig. 10-2-1

Secure the outdoor unit with fixing bolts and nuts if the unit is likely to be exposed to a strong wind. Use ∅ 8 mm or ∅ 10 mm anchor bolts and nuts.

· If it is necessary to drain the defrost water, attach drain nipple 9 and cap waterproof

the bottom plate of the outdoor unit before installing it.

Page 60

10-2-2. Accessory and installation parts

FILE NO. SVM-19040

- 60 -

Indoor Unit

No. Part name No. Part name

Installationplate×1

Battery×2

Mountingscrew×6

Owner’sManual×1

Wirelessremotecontrol×1

Remotecontrolholder×1

Flatheadwoodscrew×2

InstallationManual×1

Outdoor Unit

No. Part name No. Part name

Drainnipple×1

*NotrequiretouseforRAS-05,07,10,13TAVG

Capwaterproof×2*

Air lters

Cleanevery2weeks.

1. Opentheairinletgrille.

2. Removetheairﬁlters.

3. Vacuumorwashandthendrythem.

4. Reinstalltheairﬁltersandclosetheairinletgrille.

Page 61

10-2-3. Installation/Servicing Tools

FILE NO. SVM-19040

- 61 -

Changes in the product and components

In the case of an air conditioner using R32, in order to prevent any other refrigerant from being charged accidentally, the service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch)

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

New tools for R32(R410a)

New tools for

R32(R410a)

Gauge manifold

Charge hose

Electronic balance for refrigerant charging

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

Flare tool (clutch type)

Gauge for projection adjustment

Vacuum pump adapter

Applicable to R22 model

——

Changes

As pressure is high, it is impossible to measure by means of conventional gauge. In order to prevent any other refrigerant from being charged, each port diameter has been changed.

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

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

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

By increasing the clamp bar’s receiving hole, strength of spring in the tool has been improved.

Used when flare is made by using conventional flare tool.

Connected to conventional vacuum pump. It is necessary to use an adapter to prevent vacuum pump oil from flowing back to the charge hose. The charge hose connecting part has two ports-one for conventional refrigerant (7/16 UNF 20 threads per inch) and one for R32(R410a). If the vacuum pump oil (mineral) mixes with R32(R410a) a sludge may occur and damage the equipment.

Gas leakage detector

• Incidentally, the “refrigerant cylinder” comes with the refrigerant designation R32(R410a) and protector coating in the U.S's ARI specified rose color (ARI color code: PMS 507).

• Also, the “charge port and packing for refrigerant cylinder” require 1/2 UNF 20 threads per inch corresponding to the charge hose’s port size.

Exclusive for HFC refrigerant.

Page 62

10-3. Indoor Unit

FILE NO. SVM-19040

- 62 -

10-3-2. Cutting a hole and mounting installation

10-3-1. Installation place

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

• A place where there are no obstacles near the air inlet and outlet

•

A place which allows easy installation of the piping to the outdoor unit A place which allows the front panel to be opened

• The indoor unit shall be installed at least 2.5 m height.

• Also, it must avoided to put anything on the top of the indoor unit.

CAUTION

• Direct sunlight to the indoor unit’s wireless

receiver should be avoided.

• The microprocessor in the indoor unit should not

be too close to RF noise sources. (For details, see the owner’s manual.)

• A place where there are no obstacles such as a

curtain that may block the signal from the indoor unit.

• Do not install the remote control in a place exposed

to direct sunlight or close to a heating source, such as a stove.

• Keep the remote control at least 1 m apart from the

nearest TV set or stereo equipment. (This is necessary to prevent image disturbances or noise interference.)

• The location of the remote control should be

determined as shown below.

(Top view)

Remote control

Indoor unit

Reception range

45°

Remote control

Indoor unit

(Side view)

75°

Reception range

When installing the refrigerant pipes from the rear.

Pipe hole

Ø65 mm

The center of the pipe hole is above the arrow.

120 mm

Fig. 10-3-2

1. After determining the pipe hole position on the

mounting plate (A), drill the pipe hole (∅65 mm) at a slight downward slant to the outdoor side.

NOTE

• When drilling a wall that contains a metal lath, wire

lath or metal plate, be sure to use a pipe hole brim ring sold separately.

103

300

Installation plate

300

Pipe hole

144

Indoor unit

Hook

Thread

Hook

Weight

Fig. 10-3-3

Hook

Pipe hole

Mounting screw

Fig. 10-3-1

Page 63

<When the installation plate is directly mounted on

FILE NO. SVM-19040

- 63 -

the wall>

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

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

3. Install the installation plate horizontally in the wall.

CAUTION

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

10-3-3. Piping and drain hose installation

* Since dewing results in a machine trouble, make

sure to insulate both the connecting pipes. (Use polyethylene foam as insulating material.)

Rear right

Rear left

Bottom left

Changing

Left

Bottom right

Right

Die-cutting

back body slit

drain hose

Piping preparation

Installation plate <Keep horizontal direction>

Anchor bolt

Projection 15 mm or less

Fig. 10-3-4

5 mm dia. hole

Mounting

…

screw

∅4 x 25

sss

Clip anchor (local parts)

Fig. 10-3-5

CAUTION

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

Fig. 10-3-6

1. Die-cutting back body slit

Cut out the slit on the leftward or right side of the back body for the left or right connection and the slit on the bottom left or right side of the back body for the bottom left or right connection with a pair of nippers.

2. Changing drain hose

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

The drain hose can be removed by removing the

•

screw securing the drain hose and then pulling out

the drain hose.

When removing the drain hose, be careful of any

•

sharp edges of steel plate. The edges can injuries.

• To install the drain hose, insert the drain hose firmly

until the connection part contacts with heat insulator, and the secure it with original screw.

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

• Insert clip anchors for appropriate mounting screws

….

NOTE:

• Secure four corners and lower parts of the installation plate with 4 to 6 mounting screws to install it.

Drain hose

Fig.10-3-7

Clip the drain cap by needle-nose pliers and pull out.

Fig. 10-3-8

Page 64

FILE NO. SVM-19040

- 64 -

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

Fig. 10-3-9

<Left-hand connection with piping>

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

Bend the connection pipe within a radius of 30 mm.

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

2) Firmly insert drain cap.

Do not apply lubricating oil (refrigerant machine oil) when inserting the drain cap. Application causes

deterioration and drain leakage of the plug.

No gap

Insert a hexagon wrench (4 mm).

Fig. 10-3-10

CAUTION

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

• After scribing slits of the back body with a knife or a

making-off pin, cut them with a pair of nippers or an equivalent tool.

(To the forefront of flare)

260 mm

210 mm

R 30 mm (Use polisin (polyethylene)

43 mm

core or the like for bending pipe.)

Gas side

Liquid side

Outward form of indoor unit

Use the handle of screwdriver, etc.

Fig. 10-3-13

NOTE

If the pipe is bent incorrectly, the indoor unit may unstably be set on the wall.

After passing the connecting pipe through the pipe hole, connect the connecting pipe to the auxiliary pipes and wrap the facing tape around them.

CAUTION

Slit

Fig. 10-3-11

After scribing slits of the back body with a knife or

•

a making-off pin, cut them with a pair of nippers or an equivalent tool.

Slit

-1

Fig.

• Bind the auxiliary pipes (two) and connecting

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

Indoor unit

Auxiliary pipes

Installation plate

Connecting cable

• Carefully arrange pipes so that any pipe does not

stick out of the rear plate of the indoor unit.

• Carefully connect the auxiliary pipes and

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

• Since dewing results in a machine trouble, make

sure to insulate both the connecting pipes. (Use polyethylene foam as insulating material.)

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

Page 65

10-3-4. Indoor unit fixing

FILE NO. SVM-19040

- 65 -

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

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

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

10-3-5. Drainage

1. Run the drain hose sloped downwards.

NOTE

• Hole should be made at a slight downward slant on

the outdoor side.

Do not form the Do not rise the drain hose.

drain hose into

a wavy shape.













Press

(unhook)

Fig. 10-3-14

• For detaching the indoor unit from the installation

plate, pull the indoor unit toward you while pushing its bottom up at the specified parts.



Fig. 10-3-15

50 mm or more

Do not put the drain hose end into water.

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

Fig. 10-3-16

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

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

Shield pipe

Drain hose

Inside the room

Extension drain hose

Fig. 10-3-17

CAUTION

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

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

Wall

Drain guide

Space for pipes

Fig. 10-3-18

Page 66

10-4. Outdoor Unit

FILE NO. SVM-19040

- 66 -

-1. Installation place

10-4

A place which provides the spaces around the

•

outdoor unit as shown in the diagram

• A place which can bear the weight of the outdoor

unit and does not allow an increase in noise level and vibration

• A place where the operation noise and discharged

air do not disturb your neighbors

• A place which is not exposed to a strong wind

• A place free of a leakage of combustible gases

• A place which does not block a passage

• When the outdoor unit is to be installed in an

elevated position, be sure to secure its feet.

• The allowable length of the connecting pipe.

Model

Chargeless Upto15m Upto15m

Maximumlength 15m 20m Additionalrefrigerentcharging – 16–20m(20g/1m)

• The allowable height of outdoor unit installation site.

Model

Maximumheight 12m 12m

RAS-05, 07, 10, 13TAVG-EE

• A place where the drain water does not raise any problems

Precautions for adding refrigerant

• Use a scale having a precision with at least 10 g per index line when adding the refrigerant. Do not use a bathroom scale or similar instrument.

RAS-16, 18TAVG-EE

Snow protection plate

Front

Anchor bolts

Snow protection hood

At least 50 cm

Snow accumulation line

Holding frame

Install at least 50 cm above the snow accumulation line.

Fig. 10-4-1

CAUTION

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

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

3. In particularly windy areas, install the unit such as to avoid admission of wind.

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

• A place full of machine oil.

• A saline-place such as the coast.

• A place full of sulfide gas.

• A place where high-frequency waves are likely

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

CAUTION

When the outdoor unit is installed in a place where the drain water might cause any problems, Seal the water leakage point tightly using a silicon adhesive or caulking compound.

10-4-2. Precautions about Installation in Regions

with Snowfall and Cold Temperatures

•

� Do not use the supplied drain nipple for draining water.

Drain the water from all the drain holes directly.

•

To protect the outdoor unit from snow accumulation,

�

install a holding frame, and attach a snow protection hood and plate.

•

� Do not use a double-stacked design.

Strong

wind

Fig.

10-4-

Page 67

10-4-3. Draining the Water

FILE NO. SVM-19040

- 67 -

• Holes are provided on the base plate of the outdoor unit to ensure that the defrost water produced during heating operations is drained off efficiently.

If a centralized drain is required when installing the unit on a balcony or wall, follow the steps below to drain off the water.

1. Proceed with water-proofing by installing the water-proof rubber caps in the 2 elongated holes on the base plate of the outdoor unit. [How to install the waterproof rubber caps]

1) Place four fingers into each cap, and insert

the caps into the water drain holes by pushing them into place from the underside of the base plate.

2) Press down on the outer circumferences of

the caps to ensure that they have been inserted tightly. (Water leaks may result if the caps have not been inserted properly, if their outer circumferences lift up or the caps catch on or wedge against something.)

2. Install the drain nipple and a commercially ailable dr

av diam

eter), (For the position where the dr installed, ref

hose

ain

and dr

ain

16 mm inside

(with off

the water.

ain nipple is

to the installation diagram

indoor and outdoor units.)

• Chec

k that the outdoor unit is horiz route the dr angle

Base plate

ain hose at a downw

while ensur

ing that it is connected tautly.

Drain nipple

ontal, and

ard sloped

Commercially available drain hose

Do not use ordinary garden hose, but one can flatten and prevent water from draining.

Fig. 10-4-4

of the

Water-proof rubber caps

(supplied with the outdoor unit)

Base plate

Drain nipple

Fig. 10-4-3

Page 68

10-4-4. Refrigerant piping connection

FILE NO. SVM-19040

- 68 -

Cut the pipe with a pipe cutter.

90°

Obliquity

Roughness

Fig. 10-4-5

2. Insert a flare nut into the pipe, and flare the pipe.

Projection margin in flaring : A (Unit : mm)

•

Die

Pipe

Fig. 10-4-6

Ridgid (Clutch type)

Outer dia.

of copper pipe

Ø6.35 0 to 0.5 1.0 to 1.5 Ø9.52 0 to 0.5 1.0 to 1.5

Ø12.70 0 to 0.5 1.0 to 1.5

Pipes thickness

Imper

ial (wing nut type)

Outer dia. of copper pipe R32

Pipes thickness 0.8 mm or more

R32 tool used

0.8 mm or more

Ø6.35 1.5 to 2.0 Ø9.52 1.5 to 2.0

Ø12.70 2.0 to 2.5

Conventional tool

used

CAUTION

• Do not scratch the inner surface of the ﬂared part

when removing burrs.

• Flare processing under the condition of scratches

on the inner surface of ﬂ are processing part will cause refrigerant gas leak.

Warp

Align the centers of the connecting pipes and tighten

the flare nut as far as possible with your fingers. Then tighten the nut with a spanner and torque wrench as shown in the figure.

Flare nutHalf union

Externally threaded side

Use a wrench to secure.

Use a torque wrench to tighten.

Internally threaded side

Fig. 10-4-7

CAUTION

•

Do not apply excess torque.

•

Otherwise, the nut may crack depending on the conditions.

(Unit : N•m)

Outer dia. of copper pipe

Ø6.35 mm

Ø9.52 mm

Ø12.70 mm

Tightening torque of flare pipe connections

The operating pressure of R32 is higher than that of R22 (Approx. 1.6 times). It is theref

ore necessar

y to fir connecting sections (which connect the indoor and outdoor units) up to the specified tightening torque. Incorrect connections ma leakage

, b

ut also damage to the refr

y cause not only a gas

Tightening torque

8 (1.6 to 1.8 kgf•m)

6 to 1

2 (3.0 to 4.2 kgf•m)

0 to 4

50 to 62 (5.0 to 6.2 kgf•m)

mly tighten the flare pipe

iger

ant cycle

Flare at indoor unit side

Flare at outdoor unit side

Fig. 10-4-8

Page 69

AIR PURGE

FILE NO. SVM-19040

- 69 -

acuate the air in the connecting pipes and in theEv indoor unit using a v refriger

ant in the outdoor unit. For details, see the

acuum pump. Do not use the

manual of the vacuum pump.

Be sure to use a vacuum pump with counter-flow prevention function so that inside oil of the pump does not flow backward into pipes of the air conditioner when the pump stops. (If oil inside of the vacuum pump enters into the air conditioner, which use R32, refrigeration cycle trouble may result.)

1. Connect the charge hose from the manif e toold valv the service port of the gas side packed valve.

2. Connect the charge hose to the port of the vacuum pump.

3. Open fully the low pressure side handle of the gauge manifold valve.

4. Operate the vacuum pump to start evacuating. Perform evacuating for about 15 minutes if the piping length is 20 meters. (15 minutes for 20 meters) (assuming a pump capacity of 27 liters per minute. Then confirm that the compound pressure gauge reading is -101 kP

a (76 cmHg).

5.6.Close the low pressure side valve handle of gauge manifold. Open fully the valve stem of the packed valves (both side of Gas and Liquid).

7. Remove the charging hose from the service port.

8. Securely tighten the caps on the packed valves.

Compound pressure gauge

–101 kPa (-76 cmHg)

Handle Lo

Charge hose (For R32 only)

Connecting pipe

Pressure gauge

Manifold valve

Handle Hi (Keep full closed)

Charge hose (For R32 only)

Vacuum pump adapter for counter-flow prevention (For R32 only)

CAUTION

• KEEP IMPORTANT 6 POINTS FOR PIPING WORK

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

2) Tighten the connections (between pipes and unit).

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

4) Check gas leak (connected points).

5) Be sure to fully open the packed valves before operation.

6) Reusable mechanical connectors and ﬂared joints are not allowed indoors. When mechanical connectors are reused indoors, sealing parts shall be renewed. When ﬂared joints are reused indoors, the ﬂ are part shall be refabricated.

• Open the valve stem all the way out, but do not try

to open it beyond the stopper.

Pipe size of Packed Valve

12.70 mm and smallers

15.88 mm

• Securely tighten the valve cap with torque in the

following table

Cap Torque

Valve Rod Cap

Service Port Cap

Cap Size (H)

H17 - H19

H22 - H30

H14

H17

Size of Hexagon wrench

A = 4 mm

A = 5 mm

14~18 N.m

(1.4 to 1.8 kgf·m)

33~42 N.m

(3.3 to 4.2 kgf·m)

8~12 N.m

(0.8 to 1.2 kgf·m)

14~18 N.m

(1.4 to 1.8 kgf·m)

Packed valve at liquid side

Vacuum

pump

Packed valve at gas side

Service port (Valve core (Setting pin))

Fig. 10-4-9

Hexagon wrench is required.

Service Port Cap

Valve Rod Cap

Fig. 10-4-10

Page 70

10-5. Electrical works

FILE NO. SVM-19040

- 70 -

Model

Powersource 50Hz,220–240VSinglephase

Maximumrunningcurrent 5.0A 5.4A 7.2A 7.4A 9.0A 9.25A

Circuitbreakerrating 6.5A 7.0A 9.0A 9.5A 11.5A 12.0A

Powersupplycable H07RN-For60245IEC66(1.5mm

Connectingcable H07RN-For60245IEC66(1.5mm

10-5-1. Wiring Connection

Indoor unit>

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

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

2. Remove the terminal cover and cord clamp.

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

4. Take out the connecting cable through the cable slot on the rear panel so that it protrudes about 20 cm from the front.

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

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

RAS-05TKVG-EE RAS-07TKVG-EE RAS-10TKVG-EE RAS-13TKVG-EE RAS-16TKVG-EE

ormore)

1. Remove the valve cover, the electric parts cover and the cord clamp from the outdoor unit.

2. Connect the connecting cable to the terminal as identif ed by the matching numbers on the terminal block of indoor and outdoor unit.

3. Insert the power cord and the connecting cable carefully into the terminal block and secure it tightly with screws.

4. Use vinyl tape, etc. to insulate the cords which are not going to be used. Locate them so that they do not touch any electrical or metal parts.

5. Secure the power cord and the connecting cable with the cord clamp.

6. Attach the electric parts cover and the valve cover on the outdoor unit.

RAS-18TKVG-EE

H07RN-For60245IEC66

(2.5mm

7. Secure the connecting cable with the cord clamp.

8. Fix the terminal cover and air inlet grille on the indoor unit.

ormore)

Front panel

Air inlet grille

Screw

Screws

Terminal cover

Cord clamp

• When attaching the air inlet grille, the contrary of the removed operation is performed.

Fig. 10-5

Terminals block

Valve cover

-2

Fig. 10-5-1

Page 71

10-5-2. Power Supply and Connecting Cable Connection

FILE NO. SVM-19040

- 71 -

Power Supply Input at Indoor Unit Terminal Block (Recommend)

Indoor unit Outdoor unit

Power supply cable

Connecting cable

Power supply cable connect to

Terminal block (L N 1 2 3)

Earth line

Power supply cable

Connecting cable connect to

Terminal block (L N 1 2 3)

Earth line Earth line

Power supply cable

Power Supply Input at Outdoor Unit Terminal Block (Optional)

Connecting cable

Stripping length of the power supply cable

Earth line

50 mm

10 mm

70 mm

Stripping length of the connecting cable

Earth line

50 mm

10 mm

70 mm

Terminal block

Connecting cable

Terminal block

Connecting cable

Earth line

Connecting cable

RAS-05, 07, 10, 13TAVG-EE

Earth line

Connecting cable

RAS-16, 18TAVG-EE

Connecting cable

Indoor unit Outdoor unit

Connecting cable connect to

Terminal block (L N 1 2 3)

Connecting cable

Earth line

Stripping length of the connecting cable

50 mm

10 mm

70 mm

Earth line

Terminal block

Connecting cable

Earth line

Connecting cable

RAS-05, 07, 10, 13TAVG-EE

Terminal block

Connecting cable

Earth line

Connecting cable

RAS-16, 18TAVG-EE

Power cord

Earth line

Power cord

Earth line

Power cord

Page 72

Power supply input Wiring Diagram

FILE NO. SVM-19040

- 72 -

PowersupplyinputatIndoorunitTerminalBlock(Recommend)

L N 1 2 3

Power supply input

PowersupplyinputatOutdoorunitTerminalBlock(Optional)

L N

GND

CHASSIS

EARTH

1 2 3

Indoor Terminal Block

INDOOR UNIT OUTDOOR UNIT

Outdoor Terminal Block

INDOOR UNIT OUTDOOR UNIT

CHASSIS

EARTH

L N 1 2 3

1 2 3 L N

CHASSIS

Indoor Terminal Block

Outdoor Terminal Block

N L

GND

Power supply input

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

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

3. Circuit breaker must be used for the power supply line of this air conditioner.

4. Be sure to comply power supply and connecting cable for size and wiring method.

5. Every wire must be connected f rmly.

6. Perform wiring works so as to allow a general wiring capacity.

7. Wrong wiring connection may cause some electrical part burn out.

8. Incorrect or incomplete wiring is carried out, it will cause an ignition or smoke.

9. This product can be connected to main power supply. Connection to fixed wiring : A switch which disconnects all poles and has a contact separation at least 3mm must be incorporated in the fixed wiring.

CAUTION

Page 73

10-6. Others

FILE NO. SVM-19040

- 73 -

10-6-1 . Gas leak test

Check places for indoor unit (Flarenut connection)

Check places for outdoor unit

Fig. 10-6-1

• Check the flare nut connections for the gas leak with a gas leak detector or soap water.

NOTE : 1. Repeat previous step to reset Remote

Control to be A.

2. Remote Control A has not "A" display.

3. Default setting of Remote Control from factory is A.

Fig. 10-6-2

10-6-3. Test operation

To switch the TEST RUN (COOL) mode, press [RESET] button for 10 sec. (The beeper will make a short beep.)

10-6

-2. Remote Control A-B Selection

• When two indoor units are installed in the same room or

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

•

The remote control signal is not received when the

settings of indoor unit and remote control are different.

•

There is no relation between A setting/B setting and A

room/B room when connecting the piping and cables.

To separate using of remote control for each indoor unit in case of 2 air conditioners are installed nearly.

1. Press [RESET] button on the indoor unit to turn the air conditioner ON.

2. Point the remote control at the indoor unit.

3. Push and hold [CHECK] button on the Remote Control by the tip of the pencil. "00" will be shown on the display (Picture ).

4. Press [MODE] during pushing [CHECK]. "B" will show on the display and "00" will disappear and the air conditioner will turn OFF. The Remote Control B is memorized (Picture ).

OPERATION / RESET Button

Fig. 10-6-3

10-6-4. Auto restart setting

This product is designed so that, after a power failure, it can restart automatically in the same operating mode as before the power failure.

Information

The product was shipped with Auto Restart function

in the off position. Turn it on as required.

1. Press and hold the [RESET] button on the indoor unit 3 seconds to set the operation. (3 beep sound and OPERATION lamp blink 5 time/sec for 5 seconds)

2. Press and hold the [RESET] button on the indoor unit for 3 seconds to cancel the operation. (3 beep sound but OPERATION lamp does not blink)

In case of ON timer or OFF timer are set, AUTO

•

RESTART OPERATION dose not activate.

Page 74

11. HOW TO DIAGNOSE THE TROUBLE

FILE NO. SVM-19040

- 74 -

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

Table 11-1

No.

1 2 3 4 5

Troubleshooting Procedure

First Confirmation Primary Judgment Judgment by Flashing LED of Indoor Unit Self-Diagnosis by Remote Controller Judgment of Trouble by Every Symptom

No.

6 7 8 9

Troubleshooting Procedure

How to Check Simply the Main Parts Troubleshooting How to Diagnose Trouble in Outdoor Unit How to Check Simply the Main Parts How to Simply Judge Whether Outdoor

Fan Motor is Good or Bad

K Precautions when handling the new inverter

CAUTION: HIGH VOLTAGE

The high voltage circuit is incorporated. Be careful to do the check service, as the electric shock may be caused in case of touching parts on the

P.C. board by hand.

The new inverter will be incorporated starting with this unit.

K The control circuitry has an uninsulated construction.

RAS-05,07,10,13TAVG-EE

Fig. 11-1

Page 75

RAS-16,18TAVG-EE

FILE NO. SVM-19040

- 75 -

Fig. 11-2

CAUTION

A high voltage (equivalent to the supply voltage) is also energized to ground through the sensors, PMV and other low-voltage circuits. The sensor leads and other wires are covered with insulated tubes for protection. Nevertheless, care must be taken to ensure that these wires are not pinched.

Take sufficient care to avoid directly touching any of the circuit parts without first turning off the power.

At times such as when the circuit board is to be replaced, place the circuit board assembly in a vertical position.

Laying the board flat on an electrically conductive object (such as the top panel of the air conditioner's outdoor unit) while a charge is still retained by the electrolytic capacitors of the inverter's main circuit may cause short-circuiting between the electrolytic capacitors and secondary circuit components and result in damage to the components.

Fig. 11-3 (RAS-05,07,10,13TAVG-EE)

Fig. 11-4 (RAS-16,18TAVG-EE)

Do NOT lay the circuit board assembly flat.

Page 76

K Precautions when inspecting the control section of the outdoor unit

FILE NO. SVM-19040

- 76 -

NOTE :

A large-capacity electrolytic capacitor is used in the outdoor unit controller (inverter). Therefore, if the power supply is turned off, charge (charging voltage DC280 to 380V) remains and discharging takes a lot of time. After turning off the power source, if touching the charging section before discharging, an electrical shock may be caused. Discharge the electrolytic capacitor completely by using soldering iron, etc.

< Discharging method >

1. Remove the inverter cover (plating) by opening four mounting claws.

2. As shown below, connect the discharge resistance (approx. 100Ω40W) or plug of the soldering iron to

voltage betw capacitor

Inverter module cover

een + – terminals of the C07 (“WARNING ELECTRIC SHOCK” is indicated.) electrolytic

(760µF/400V) on P.C. board, and then perform discharging.

Plug of

Discharging position (Discharging period 10 seconds or more)

PCB

soldering iron

Spacer

Fig. 11-5 (RAS-05,07,10,13TAVG-EE)

Fig. 11-6 (RAS-16,18TAVG-EE)

Inverter cover

P. C. board (Soldered surface)

Page 77

11-1. First Confirmation

FILE NO. SVM-19040

- 77 -

11-1-1. Confirmation of Power Supply

Confirm that the power breaker operates (ON) normally.

11-1-2. Confirmation of Power Voltage

Confirm that power voltage is AC 220–230–240 ± 10%. If power voltage is not in this range, the unit may not operate normally.

11-1-3. Operation Which is not a Trouble (Program Operation)

For controlling the air conditioner, the program operations are built in the microcomputer as described in the following table.

If a claim is made for running operation, check whether or not it meets to the contents in the following table. When it does, we inform you that it is not trouble of equipment, but it is indispensable for controlling and main-

taining of air conditioner.

Table 11-1-1

No.

Operation of air conditioner

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

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

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

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

In AUTO mode, the operation mode is changed.

Description

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

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

The air flow indication is fixed to [AUTO].

For smooth operation of the compressor, the compressor motor speed is restricted to Max. 41 rps for 2 minutes, and Max.91 rps for 2 minutes to 3 minutes, respectively after the operation has started.

After selecting Cool or Heat mode, select an operation mode again if the compressor keeps stop status for 15 minutes.

In HEAT mode, the compressor motor speed does not increase up to the maximum speed or decreases before the temperature arrives at the set temperature.

The compressor motor speed may decrease by hightemp. release control (Release protective operation by temp.-up of the indoor heat exchanger) or current release control.

Page 78

11-2. Primary Judgment

FILE NO. SVM-19040

- 78 -

To diagnose the troubles, use the following methods.

1) Judgment by flashing LED of indoor unit

2) Self-diagnosis by service check remote controller

3) Judgment of trouble by every symptom

Firstly use the method 1) for diagnosis. Then, use the method 2) or 3) to diagnose the details of troubles.

11-3. Judgment by Flashing LED of Indoor Unit

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

Table 11-3-1

Indoor indication

lamp flashes.

Which lamp

does flash?

Item

Check

code

Block display Description for self-diagnosis

OPERATION Flashing display (1 Hz)

OPERATION Flashing display (5 Hz)

OPERATION TIMER (White) Flashing display (5 Hz)

OPERATION Flashing display (5 Hz)

OPERATION TIMER Flashing display (5 Hz)

Power failure (when power is ON)

Protective circuit operation for indoor P.C. board

Protective circuit operation for connecting cable and serial signal system

Protective circuit operation for outdoor P.C. board

Protective circuit operation for others (including compressor)

NOTES :

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

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

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

OPERATION

Normal Flash 1 Hz

Flash 2 Hz 2 times every 1 sec.

None

TIMER

Normal None

None

Flash

Release status display Nothing

Current release TD release

1 Hz

TC release

Page 79

11-4. Self-Diagnosis by Remote Controller (Check Code)

FILE NO. SVM-19040

- 79 -

1. If the lamps are indicated as shown B to E in Table 11-3-1, execute the self-diagnosis by the remote controller.

2. When the remote controller is set to the service mode, the indoor controller diagnoses the operation condition and indicates the information of the self-diagnosis on the display of the remote controller with the check codes. If a fault is detected, all lamps on the indoor unit will flash at 5Hz and it will beep for 10 seconds (Beep, Beep, Beep ... ). The timer lamp usually flashes (5Hz) during self-diagnosis.

11-4-1. How to Use Remote Controller in Service Mode

Press [CHECK] button with a tip of pencil to set the remote controller to the service mode.

• “ ” is indicated on the display of the remote controller.

Press [TEMP ] or [TEMP ] button

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

Alphanumeric characters are used for the check codes.

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

• • •

• The TIMER indicator of the indoor unit flashes continuously. (5 times per 1 sec.)

• Check the unit with all 52 check codes ( to ) as shown in Table-11-4-1.

• Press [TEMP ] or [TEMP ] button to change the check code backward.

If there is a fault, the indoor unit will beep for 10 seconds (Beep, Beep, Beep...).

Note the check code on the display of the remote controller.

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

• All indicators on the indoor unit will flash. (5 times per 1 sec.)

Press [CLEAR] button. After service finish for clear

service code in memory.

• "7F" is indicated on the display of the remote

control.

Press [ ] button to release the service mode.

• The display of the remote controller returns to as it

was before service mode was engaged.

Fig. 11-4-1

Page 80

11-4-2 Caution at Servicing

FILE NO. SVM-19040

- 80 -

1. After using the service mode of remote controller finished, press the [ ] button to reset the remote controller to normal function.

2. After finished the diagnosis by the remote controller, turn OFF power supply and turn its ON again to reset the air

conditioner to normal operation. However, the check codes are not deleted from memory of the microcomputer.

3. After servicing finished, press [CLR] button of remote controller under service mode status to send code "7F" to the

indoor unit. The check code stored in memory is cleared.

Table 11-4-1

Block distinction Operation of diagnosis function

Check

code

Block

Indoor P.C. TA sensor ; The room Operation Flashes when 1. Check the sensor TA and connection.

board. temperature sensor is continues. error is detected. 2. In case of the sensor and its

Check

code

Cause of operation

short-Circuit or disconnection. connection is normal, check the

TC sensor ; The heat Operation Flashes when 1. Check the sensor TC and connection.

exchanger temperature continues. error is detected. 2. In case of the sensor and its

sensor of the indoor unit connection is normal, check the

is out of place, disconnection, P.C. board.

short-circuit or migration.

Air

conditioner

status

Display flashing

error

Action and Judgment

P.C. board.

Fan motor of the indoor unit All OFF Flashes when 1. Check the fan motor and connection.

is failure, lock-rotor, short- error is detected. 2. In case of the motor and its

circuit, disconnection, etc. connection is normal, check the

Or its circuit on P.C. board P.C. board.

has problem.

Other trouble on the indoor Depend on Depend on

P.C. board. cause of cause of

failure. failure.

1. Reset power supply.

2. Replace P.C. board.

Page 81

Block distinction Operation of diagnosis function

FILE NO. SVM-19040

- 81 -

Check

code

Block

Serial signal 1) Defective wiring of the Indoor unit Flashes when 1) to 3) The outdoor unit never

and connecting connecting cable or operates error is detected. operate.

cable. miss-wiring. continue. Flashing stop Check connecting cable and correct

Check

code

Cause of operation

2) Operation signal has not Outdoor unit and outdoor unit if defective wiring.

send from the indoor unit stop. start to operate Check 25A fuse of inverter P.C. board.

when operation start. when the return Check 3.15A fuse of inverter

3) Outdoor unit has not signal from the P.C. board.

send return signal to the outdoor unit is Check operation signal of the indoor

indoor unit when operation normal. unit by using diode. Measure voltage

started. at terminal block of the indoor unit

4) Return signal from the between No.2 and No.3 (or L2 and S)

outdoor unit is stop during If signal is varied 15-60V continuously,

operation. replace inverter P.C. board.

Some protector If signal is not varied, replace indoor

(hardware, if exist) of the P.C. board.

outdoor unit open 4) The outdoor unit abnormal stop at

circuit of signal. some time.

Signal circuit of indoor If the other check codes are found

P.C. board or outdoor concurrently, check them together.

P.C. board is failure Check protector (hardware) such

in some period. as Hi-Pressure switch,

Note : Operation signal of the indoor unit shall be measured in the sending period as

picture below.

Sending signal of the indoor unit when have not return

VDC

signal from the outdoor unit.

3 minutes Delay, start counting from power supply ON or remote OFF.

3 minutes stop

Voltage variation stop or have not voltage output.

conditioner

***

Air

status

Display flashing

error

Thermal-Relay, etc.

Check refrigerant amount or any

possibility case which may caused

high temperature or high pressure.

Check operation signal of the indoor

unit by using diode. Measure voltage

at terminal block of the indoor unit

between No.2 and No.3 (or L2 and S) If signal is varied 15-60V continuously, replace inverter P.C. board. If signal is not varied, replace indoor P.C. board.

Action and Judgment

Measured signal voltage by apply diode

* Signal send only 1 minute and stop. Because of return signal from outdoor unit has not received.

** Signal resend again after 3 minutes stop. And the signal will send continuously. ** * 1 minute after resending, the indoor unit display flashes error.

34 78

Time (Min)

Page 82

Block distinction Operation of diagnosis function

FILE NO. SVM-19040

- 82 -

Check

code

Block

Outdoor P.C. Current on inverter circuit All OFF Flashes after 1. Remove connecting lead wire of the

board is over limit in short time. error is detected compressor, and operate again.

Check

code

Cause of operation

Inverter P.C. board is 8 times*. 2. If outdoor fan does not operate or

failure, IGBT shortage, etc. operate but stop after some period,

Compressor current is replace the inverter P.C. board.

higher than limitation, 3. If outdoor fan operates normally,

lock rotor, etc. measure 3-Phase output of inverter

Compressor position-detect All OFF Flashes after 1. Remove connecting lead wire of the

circuit error or short-circuit error is detected compressor, and operate again.

between winding of 8 times*. 2. If outdoor fan does not operate or

compressor. operation but stop after some period,

Current-detect circuit of All OFF Flashes after Even if trying to operate again, all

inverter P.C. board error. error is detected operations stop, replace inverter

Air

conditioner

status

Display flashing

error

P.C. board (150-270VAC) at the

connecting lead wire of compressor.

4. If 3-Phase output is abnormal, replace

inverter P.C.Board.

5. If 3-Phase output is normal, replace

compressor. (lock rotor, etc.)

replace the inverter P.C. board.

3. If outdoor fan operates normally,

measure resistance of compressor

winding. If circuit is shortage, replace

the compressor.

4 times*. P.C. board.

Action and Judgment

TE or TS sensor; abnormal.

Out of place, disconnection,

shortage, or misconnection

(TE sensor is connected to TS

connector, TS sensor is

connected to TE sensor

connector)

TE sensor; Outdoor heat

exchanger temperature sensor

TS sensor; Suction pipe

temperature sensor

TD sensor ; Discharge pipe All OFF Flashes after 1. Check sensors TD and connection.

temperature sensor is error is detected 2. In case of the sensor and its

disconnection or shortage. 4 times*. connection is normal, check the

Outdoor fan failure or its All OFF Flashes after 1. Check the motor, measure winding

drive-circuit on the inverter error is detected resistance, shortage or lock rotor.

P.C. board failure. 8 times*. 2. Check the inverter P.C. board.

TO sensor ; The outdoor Operation Record error 1. Check sensors TO and connection.

temperature sensor is

disconnection or shortage.

All OFF Flashes after

error is detected

4 times*.

continues. after detected

4 times*. But does not flash display.

1. Check sensors, TE, TS connection. In

case of sensors and it’s connection is

normal, check the inverter P.C. board

2. Check 4way valve operation/position.

In case TE, TS detected temperature

relationship are different from normal

operation, “18” might be detected.

inverter P.C. board.

2. In case of the sensor and its

connection is normal, check the

inverter P.C. board.

Page 83

Block distinction Operation of diagnosis function

FILE NO. SVM-19040

- 83 -

Check

code

Block

Outdoor P.C.

board

Check

code

Cause of operation

Compressor drive output error. All OFF Flashes after 1. Check installation conditions such as

(Relation of voltage, current error is detected packed valve opening, refrigerant

and frequency is abnormal) 8 times*. amount and power supply (rate +

Overloading operation of both of operation and non operation

compressor caused by condition).

over-charge refrigerant, 2. Check P.M.V. by measure the

P.M.V. failure, etc. resistance of the coil and confirm its

Compressor failure (High operation (sound of initial

current). operation, etc.)

Air

conditioner

status

Display flashing

error

Action and Judgment

10%,

3. Observe any possibility cause which

may affect operation load of

compressor.

4. Operate again. If compressor

operation is failure when 20 seconds

passed (count time from operation

starting of compressor), replace

compressor.

* 4 or 8 times ; When first error is detected, error is count as 1 time, then once operation is stop and re-started.

After re-starting operation within 6 minutes, if same error is detected, error count is add (count become 2 times)

When error count comes 4, 8, 11 or 18 times, record error to check code. But after re-starting operation, if no error

is detected and air conditioner can operate more than 6 minutes, error count is cleared.

The others Return signal of the outdoor Indoor unit Flashes when 1. Check power supply (Rate +

(including unit has been sent when operates error is detected. 2. If the air conditioner repeat operates

compressor) operation start. But after continue. Flashing stop and stop with interval of approx. 10

that, signal is stop some time. Outdoor unit and outdoor unit to 40 minutes.

Instantaneous power stop. start to operate Check protector (hardware) such

failure. when the return as Hi-Pressure switch,

Some protector signal from the Thermal-Relay, etc.

(hardware) of the outdoor unit is Check refrigerant amount, packed

outdoor unit open normal. valve opening and any possibility

circuit of signal. cause which may affect high

Signal circuit of indoor temperature or high pressure.

P.C. board or outdoor 3. Check operation signal of the indoor

P.C. board is failure unit by using diode. Measure voltage

in some period. at terminal block of the indoor unit

between No.2 and No.3 (or L2 and S)

If signal is varied 15-60V continuously,

replace inverter P.C. board.

If signal is not varied, replace indoor

P.C. board.

10%)

Page 84

Block distinction Operation of diagnosis function

FILE NO. SVM-19040

- 84 -

Check

code

Block

The others

(including

compressor)

Check

code

Cause of operation

Compressor does not rotate. All OFF Flashes after 1. Remove connecting lead wire of the

Because of missed wiring, error is detected compressor, and operate again.

missed phase or shortage. 8 times*. 2. If outdoor fan does not operate or

Discharge temperature All OFF Flashes after 1. Check sensors TD.

exceeded 117

Air

conditioner

status

Display

Action and Judgment

flashing error

operation but stop after some period,

replace the inverter P.C. board.

3. If outdoor fan operates normally,

measure 3-Phase output of inverter

P.C. board (150-270VAC) at the

connecting lead wire of compressor.

4. If 3-Phase output is abnormal, replace

inverter P.C.Board.

5. If 3-Phase output is normal, measure

resistance of compressor winding.

6. If winding is shortage, replace the

compressor.

error is detected 2. Check refrigerant amount.

4 times*. 3. Check P.M.V. by measure the

resistance of the coil and confirm its

operation (sound of initial

operation, etc.)

4. Observe any possibility cause which

may affect high temperature of

compressor.

Compressor is high current All OFF Flashes after 1. Check installation conditions such as

though operation Hz is error is detected packed valve opening, refrigerant

decreased to minimum limit. 8 times*. amount and power supply (rate +

Installation problem. both of operation and non operation

Instantaneous power condition).

failure. 2. Check P.M.V. by measure the

Refrigeration cycle resistance of the coil and confirm its

problem. operation (sound of initial

Compressor break down. operation, etc.)

Compressor failure (High

current).operation, etc.)

3. Observe any possibility cause which

may affect high current of compressor.

4. If 1, 2 and 3 are normal, replace

compressor.

10%,

Page 85

Block distinction Operation of diagnosis function

FILE NO. SVM-19040

- 85 -

Check

code

Block

The others

(including

compressor)

Check

code

Cause of operation

Return signal of the outdoor

unit has been sent when

operation start. But after

that, signal is stop some time.

Instantaneous power

failure.

Some protector

(hardware) of the

outdoor unit open circuit

of signal.

Signal circuit of indoor

P.C. board or outdoor

P.C. board is failure in

some period.

TE, TC high tmperature

TE for cooling operation

TC for heating operation.

Indoor unit Flashes when 1.

Air

conditioner

status

operates continue. Outdoor unit stop.

Display

flashing error

error is detected

11 times*.

Flashing stop

and outdoor unit start to operate when the return signal from the outdoor unit is normal.

Action and Judgment

. Check power supply (Rate +10%)

. If the air conditioner repeat operat

and stop with interval of approx. 10

to 40 minutes.

Check protector (hardware) such

as Hi-Pressure switch,

Thermal-Relay, etc.

Check refrigerant amount, packed

valve opening and any possibility

cause which may affect high

temperature or high pressure.

. Check operation signal of the indo

unit by using diode. Measure voltage

at terminal block of the indoor unit

between No.2 and No.3 (or L2 and S)

If signal is varied 15-60V continuously,

replace inverter P.C. board.

If signal is not varied, replace indoor

P.C. board.

4. Check and clean heat exchanger

area Indoor and Outdoor unit.

4, 8 or 11 times ; When first error is detected, error is count as 1 time, then once operation is stop and re-started.

After re-starting operation within 6 minutes, if same error is detected, error count is add (count become 2 times)

When error count comes 4, 8, 11 or 18 times, record error to check code. But after re-starting operation, if no error

is detected and air conditioner can operate more than 6 minutes, error count is cleared.

Page 86

11-5. Judgment of Trouble by Every Symptom

FILE NO. SVM-19040

- 86 -

11-5-1. Indoor Unit (Including Remote Controller)

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

1. Is the supply voltage normal?

2. Is the normal voltage provided to the outdoor unit?

3. Is the crossover cable connected properly?

4. Is the fuse (F01) blown?

(For 05, 07, 10, 13, 16K)

Turn off power

supply once, and 5

second later, turn it

on again.

Is OPERATION

lamp blinking?

YES

Is fuse (F01)

of indoor control

board blown?

Is it possible to

turn on power

supply by pressing

[ ]

button

on remote

control?

YES

(DB01,C03,T01

and IC11)

are defective.

Parts

transmission

remote control flash normally,

and is its signal

transmitted

properly?

Does

mark on

YES

Does

fan motor

connector

between 1

and

short-circuit?

Remote control is

defective.

Refer to (4)

"Troubleshooting for

Remote Control.

YES

Operation

Check item

Conceivable principle

cause

Measure

Item by symptoms

Unit operates

normally.

Is voltage

(DC 12V or 5V)

Is the

voltage

across C03

mesured

DC 310V~340V?

YES

Are DC 5V,

DC 12V

supplied

to main

P.C. board?

YES YES

•

e s

ure to disconnect the motor connector CN10 after shut off the power supply, or it will be a cause of

damage of the motor

indicated on rear of indoor control board

normal?

Refer to

or this problem

is one step short

of power P.C.

board block.

Turn off breaker

once and turn it

on again after

removing motor.

YES

Are DC 5V,

or DC 12V

supplied

to main

P.C. board?

Microcomputer

is defective.

Regulator IC

(IC14) or T01

are defective

Replace main

P.C. board.

Replace motor

Page 87

(2) Power is not turned on though Indoor P.C. board is replaced

FILE NO. SVM-19040

- 87 -

Turn on power supply.

Does operation lamp flash?

YES YES

NO NO

Is it wired as shown in Figure below?

Return the wiring of the

power relay is returned to

the normal procedure.

To the paragraph of

"No Power turns on".

WP-039

Page 88

11-5. Judgment of Trouble by Every Symptom

FILE NO. SVM-19040

- 88 -

11-5-1. Indoor Unit (Including Remote Controller)

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

1. Is the supply voltage normal?

2. Is the normal voltage provided to the outdoor unit?

3. Is the crossover cable connected properly?

4. Is the fuse (F01) blown?

(For 18K)

Operation

Check Item

Considerable principle cause

of indoor control

YES

of indoor control

Turn off power supply once, and 5 second later, turn it on again.

Is OPERATION indicator flashing?

Is fuse (F01)

board blown?

Is fuse (F02)

board blown?

YES

Is it possible to turn on

A/C by pushing

[ ] button

on remote controller?

YES YES

Unit operates normally.

YES

Does transmission mark

NO NO

on remote controller flash

normally,and is its signal

transmitted properly?

Point remote to digital

camera. Can see infrared

ray at sending LED

on camera monitor

when push [ ] button?

YES

Measures

Item by symptoms

Remote controller is defective.

Refer to (5) “Troubleshooting for remote controller”.

Replace remote control

(DC5V, 12V and 15V)

indicated on rear of

• Be sure to disconnect the motor connector CN36 after shut off the power supply, or it will be a cause of damage of the motor.

Is voltage

indoor control

board nor mal?

YES

Does connection

between PC Board

and reciver PCB

are connect properly?

Reconnect housing

YES

Microcomputer

is defective.

Replace main P.C. board

Replace fan motor.

Page 89

(2) Power is not turned on though Indoor P.C. board is replaced

FILE NO. SVM-19040

- 89 -

Turn on power supply.

Does operation lamp flash?

YES YES

NO NO

Is it wired as shown in Figure below?

Return the wiring of the

power relay is returned to

the normal procedure.

To the paragraph of

"No Power turns on".

CN28

WP-038

Page 90

(3) Only the indoor motor fan does not operate

FILE NO. SVM-19040

- 90 -

<Primary check> (For 05, 07, 10, 13, 16K)

1. Is it possible to detect the power supply voltage (AC220–240V) between Q and R on the terminal block?

2. Does the indoor fan motor operate in cooling operation?

(In heating operation, the indoor fan motor does not operate for approximately 10 minutes after it is turned on, to prevent a cold air from blowing in.)

Shut off the

power supply once.

Turn the power supply.

Does the fan stop in

no operating status?

YES

Start the operation

with low fan setting

in cool operation.

Does the fan rotate?

YES

Change the setting of

cooling to high fan.

Does the fan speed

become higher?

Control P.C. board is defective.

Does AC 120 V

or higher voltage apply

to between red and black

lead of fan motor?

YES

Shut off the power supply.

Does the cross flow fan rotate normally?

YES

Turn on the power supply.

Operation

stops

Replace the P.C. board.

Does connecting

terminal, connecting

NO NO

cable or power supply

cord completely?

Does not found the short

wire about connecting cable and power cord?

YES

Repair the

bearing of

the fan.

Motor control circuit failure

(IC03, Q39 and D01) or 12 V

Switching power supply failure.

YES

Normal

Is the rotation signal (DC+5 V

output between 2 (gray lead wire)

and 3 (brown lead wire) of the motor

connector (CN11) when rotating the

cross flow fan by hand in no operating

status? (1 pulse/one turn)

YES

Replace the control

P.C. board.

−

0 V)

Replace the P.C. board.

Replace the fan motor.

Replace connecting the

cable (or power cord),

thermal fuse and

terminal block.

Page 91

(3) Only the indoor motor fan does not operate

FILE NO. SVM-19040

- 91 -

<Primary check> (For 18K)

1. Is it possible to detect the power supply voltage (AC220–240V) between Q and R on the terminal block?

2. Does the indoor fan motor operate in cooling operation? (In heating operation, the indoor fan motor does not operate for approximately 10 minutes after it is turned on, to prevent a cold air from blowing in.)

Turn off power supply once, and turn it on again.

Does fan motor

continue to operate?

Is fuse (F02)

of indoor control

board blown?

Does check

operation LED flash?

YES

Start to operate indoor unit in cooling operation at airflow level “LOW”.

Does indoor fan operate?

YES

Is it possible to detect

DC 1V or more between

+ and

connector (CN36)

– of

YES

Does check connecting

cable or power supply

cord complely?

YES

Does check

5V at display unit?

YES

Is it possible to detect

DC 311–340V between

+ and 3 – of motor

connector (CN36)?

YES

(Motor connection condition)

Is it possible to detect DC 15V

between 4 + and 3 – of

motor connector (CN36)?

YES

motor

Reconnecting the in terconnection cable and terminal block

Does check 5V

at main P.C board?

Replace

display unit

Turn off indoor unit and remove

connector from motor.

Then push [ ] button

on remote controller to stop

flashing lamp on indoor unit.

YES

Replace indoor

fan motor.

Change airflow level to “HIGH”.

Start to operate the

indoor unit in except

heating operation.

At this time, is it possible to

detect DC 1V or more between

5 + and 3 – of motor

connector (CN36)?

YES

Is it possible to detect

DC 15V between

and 3 – of motor

connector(CN36)?

Turn off indoor unit and

remove connector from motor. Then start to operate indoor unit with remote controller.

Start to operate the

indoor unit in except

heating operation.

At this time, is it possible

to detect DC 1V or more

between

of motor connector(CN36)? (Check this condition within 15 seconds after

starting unit.)

YES

+ and 3 –

YES

Replace main

P.C. board.

Page 92

FILE NO. SVM-19040

- 92 -

Is it possible to

change airflow level

to “HIGH”?

YES

Fan motor operates normally.

Is it possible to

rotate cross-flow fan by

hand properly?

YES

Turn off indoor unit

and rotate cross-flow

fan by hand when the

unit is on standby.

At this time, is it possible to

detect DC 1V or more

between 5 + and 3 –

of motor connector

(CN36)?

YES

Does check display

on remote show high?

YES

Change the new PC

board. Does fan speed

change?

YES

Does check cross-flow

fan bearing normal

condition?

YES

Replace remote

Replace motor

Replace bearing of cross-flow fan.

Replace indoor

fan motor.

Replace main

P.C. board.

Page 93

(For AC fan motor) (For 05, 07, 10, 13, 16K)

FILE NO. SVM-19040

- 93 -

1. Remove the front panel. (Remove 2 screws.)

2. Remove the cover of the fan motor lead wires. Check AC voltage with CN10 connector while the fan motor is rotating.

NOTE :

• Using a tester, measure the resistance value of each winding coil.

• Use a thin test rod.

SJM-240-25 (RAS-05, 07, 10, 13) SJM-240-35 (RAS-16)

• Do not disconnect the connector while the fan motor is rotating.

• For P.C. board side, proceed to the item "Only indoor fan does not operate" of "Judgment of Trouble by Every Symptom".

WHI

CN10

BLK

RED

BRW

CN11

P.C. board

GRY

YEL

Position (P.C. board)

Between 3 (Black) - 1 (Red)

Between 3 (Black) - 5 (White)

Between 1 (Red) - 5 (White)

Resistance value (RAS-05, 07, 10, 13)

120.6

8.4

Ω

244.2

17.1

Ω

364.8

25.5

Ω

Resistance value (RAS-16)

115.6

8.1

Ω

146.2

261.8

± 10.2

18.3

Ω

Page 94

(4) Indoor fan motor automatically starts to rotate by turning on power supply

FILE NO. SVM-19040

- 94 -

[For DC fan motor] (For 18K)

<Cause>

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

on power supply.

1. Remove the front panel. (Remove 2 screws.)

2. Remove the cover of the fan motor lead wires.

3. Check DC voltage with CN36 connector while the fan motor is rotating.

NOTE :

• Do not disconnect the connector while the fan motor is rotating.

• Use a thin test rod.

Indoor fan starts rotating when power supply is turned on.

P.C. board

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

Measure voltage between 3 (GND : BLACK)

and 5 (V line : YELLOW) of motor connector (CN36)

while indoor fan motor is rotating.

DC 1.0V or more

P.C. board is defective.

Replace P.C. board. Replace motor.

Under DC 1.0V

Motor is defective.

Yellow

Black

CN36

6 (Blue) 5 (Yellow) 4 (White) 3 (Black) 2 – 1 (Red)

Page 95

(4) Troubleshooting for remote controller

FILE NO. SVM-19040

- 95 -

Check that A or B selected on the main unit is matched with A or B selected on the remote controller.

Is there direct

sunlight on the

receptor of the air

conditioner?

YES

Is there any

thyristor

fluorescent light

nearly?

YES

NO NO

Push the [ ] button.

Does the transmission

indicator blink?

Is operation

possible when the

transmitter is moved

nearer to the infrared

signal receiver of the

air conditioner?

YES

Battery life

There is no beep from the indoor unit

The OPERATION lamp of the

air conditioner main unit does not light

Reset the remote

control by take off

batteries

Push the [ ]

button

Avoid direct

sunlight.

Keep the air

conditioner away

from thyristor

fluorescent light.

Is operation possible

when setting the

temporary switch of the

air conditioner main unit

to “TEST RUN” or

“TEMPORARY AUTO”?

YES

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

within 5 cm distance

from the radio?

YES

P.C. board is failure.

Replace

P.C. board

Replace the

batteries

indicator light?

Normal

Dose the

transmission

YES

Is there any

beep and

operation?

YES

Remote control

is failure.

Replace remote

control.

Page 96

11-5-2. Wiring Failure (Interconnecting and Serial Signal Wire)

FILE NO. SVM-19040

- 96 -

(1) Outdoor unit does not operate

1) Is the voltage between R and S of the indoor terminal block varied? Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the follow-

ing diagram.

NOTE:

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

• Be sure to prepare a diode for judgment.

Terminal block at indoor side

Red

White

S5277G

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

Terminal block

Tester

Normal time : Voltage swings between DC15 and 60V. ...................Inverter Assembly check (11-7-1.)

Abnormal time : Voltage does not vary.

(2) Outdoor unit stops in a little while after operation started

<Check procedure> Select phenomena described below.

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

Gas circulation amount is down.

Measure gas pressure.

Thermo. operation of compressor

Gas shortage Gas leak Pipe clogging

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

To item of Outdoor unit does not operate.

3) The outdoor unit stops 10 minutes to 1 hour after operation started, and an alarm is displayed. (Discharge temp. error check code 03, 1E Sensor temp. error check code 02, 1C)

Gas leak P.M.V. is defective. Miswiring of connecting wires of indoor/outdoor units Clogging of pipe and coming-off of TC sensor

Refer to the chart in 11-6.

Page 97

11-6. How to Check Simple the Main Parts

FILE NO. SVM-19040

- 97 -

1C 1E

Gas leakage, disconnection of TS/TC sensors (Check code 02, 1C)

Valve drive check

Discharge temp. error, gas leakage (Check code 03, 1E)

Is coil of the pulse motor valve

(P.M.V.) correctly set?

YES

Is connecter of coil connected to inverter?

YES

from valve when the air conditioner starts the operation after turning off power

Is positioning sound of valve (sound hitting to stopper) heard

of the air conditioner once?

YES

Are temp. sensors of indoor/outdoor units correctly set to the holder?

NOTE :

The temperature sensors which are used to control pulse motor valve include indoor heat exchanger sensor (TC), outdoor heat exchanger temp. sensor (TE), outdoor suction temp. sensor (TS) and outdoor sensor (TO).

YES

Set it correctly.

Replace coil valve.

Set it correctly.

Remove TC sensor connector from the P.C. board in indoor unit. (Remove connector from the P.C. board.) Operate the air conditioner in COOL mode by TEMP button (“Beep” sound is heard if keeping pushed for 10 seconds.). The operation enters temporary operation mode which fixes opening degree of compressor speed. Check condensation at outlet of PMV, and then check operating pressure from the service port.

If there is condensation at outlet (1/4 inch=Ø6.35mm valve side),

Check the operating pressure from service port, and add gas if pressure is low.

Gas amount check and valve clogging check

Existence of condensation at outlet of P.M.V.

the valve is clogged.

YES

Replace valve.

Add gas.

Page 98

11-7. How to Diagnose Trouble in Outdoor Unit

FILE NO. SVM-19040

- 98 -

11-7-1. Summarized Inner Diagnosis of Inverter Assembly

(RAS-05, 07, 10, 13)

Table 11-7-1

Diagnosis/Process flowchart Item

Preparation

Remove connector of compressor.

Check 15A fuse

(Part No.F01).

Check

terminal voltage

of electrolytic

capacitor.

Replace fuse.

Check

electrolytic

capacitor, diode

block (DB01),

etc.

Check

electrolytic

capacitor, diode

(DB01),

etc.

Check

Contents

Tu r n “OFF” the power supply breaker, and remove 3P connector which connects inverter and compressor.

• Check whether 15A fuse on the control board assembly is blown or not.(F01)

Summary

If fuse was blown, be sure to check the electrolytic capacitor and diode block. (DB01)

• Connect discharge

resistance (approx. 100Ω, 40W) or soldering iron (plug) between +, –

terminals of the electrolytic capacitor (760µF) of

C07 (with printed WARNING ELECTRIC SHOCK) on P.C. board.

Discharging position (Discharging period 10 seconds or more)

Plug of soldering iron

Does outdoor

fan rotate?

YES

Replace outdoor fan motor.

Remove connector

CN31 of outdoor fan

motor, and using a

tester, check resistance

value between every

phases at motor side.

Operation

Measure-

ment

Check

Stop

Check

Measure-

ment

Turn on the power breaker, and operate the air conditioner in COOL mode by time shortening.

Measure terminal voltage of the electrolytic capacity.

760µF:450V

After operation, turn off the power breaker after 2 minutes 20 seconds passed, and discharge the electrolytic capacitor by soldering iron. Check voltage between motor phases.

• Is not winding between

R‚ R-S

, or Q-S opened

or short-circuited?

• Is not frame grounded with , or S?

Q, R

OK if 760µF → DC290 to 400V

Remove CN31 while pushing the part indicated by an by an arrow because CN31 is a connector with lock.

→ Resistance between

phases should be approx. 16 to 51Ω

→ Should be 100MΩ or

more.

Page 99

(RAS-16, 18)

FILE NO. SVM-19040

- 99 -

Diagnosis/Process flowchart Item

Preparation

Remove connector of compressor.

Check 25A fuse

(Part No.F01).

Check

terminal voltage

of electrolytic

capacitor.

Replace fuse.

Check

electrolytic

capacitor, diode

block (DB01),

etc.

Check

electrolytic

capacitor, diode

(DB01),

etc.

Check

Contents

Tu r n “OFF” the power supply breaker, and remove 3P connector which connects inverter and compressor.

• Check whether 25A fuse

on the control board assembly is blown or not. (F01)

Summary

If fuse was blown, be sure to check the electrolytic capacitor and diode block. (DB01)

• Connect discharge

resistance (approx. 100Ω, 40W) or soldering iron (plug) between +, – terminals of the electrolytic capacitor (760µF) of C07 (with printed

WARNING ELECTRIC SHOCK) on P.C. board.

Does outdoor

fan rotate?

YES

Replace outdoor fan motor.

Remove connector

CN31 of outdoor fan

motor, and using a

tester, check resistance

value between every

phases at motor side.

Operation

Measure-

ment

Check

Stop

Check

Measure-

ment

Turn on the power breaker, and operate the air conditioner in COOL mode by time shortening.

Measure terminal voltage of the electrolytic capacity.

760µF:400V x 2

After operation, turn off the power breaker after 2 minutes 20 seconds passed, and discharge the electrolytic capacitor by soldering iron. Check voltage between motor phases.

• Is not winding between

R‚ R-S

, or Q-S opened

or short-circuited?

• Is not frame grounded with , or S?

Q, R

OK if 760µF → DC280 to 380V

Remove CN31 whilepushing

the part indicated by an by an arrow because CN31 is a connector with lock.

→ Resistance between

phases should be approx. 16 to 51Ω

→ Should be 100MΩ or

more.

Page 100

Diagnosis/Process flowchart Item

FILE NO. SVM-19040

- 100 -

Contents

Summary

Check

compressor

winding

resistance.

Replace

control board.

Replace control board assembly.

Replace

compressor.

Check

Operation

Check winding resistance between phases of compressor, and resistance between outdoor frames by using a tester.

• Is not grounded.

• Is not short-circuited between windings.

• Winding is not opened.

Remove connector CN31 of the outdoor fan motor, turn on the power supply breaker, and perform the operation. (Stops though activation is prompted.)

Check operation within 2 minutes 20 seconds after activation stopped.

→

OK if 20MΩ or more

→

OK if about

 

3.19Ω for RAS-05,07TAVG-EE



3.36Ω for RAS-10,13TAVG-EE

1.57Ω for RAS-16,18TAVG-EE

→

(Check by a digital tester.)

11-8. How to Check Simply the Main Parts

11-8-1. How to Check the P.C. Board (Indoor Unit)

(1) Operating precautions

1) When removing the front panel or the P.C. board, be sure to shut off the power supply breaker.

2) When removing the P.C. board, hold the edge of the P.C. board and do not apply force to the parts.

3) When connecting or disconnecting the connectors on the P.C. board, hold the whole housing. Do not pull at the lead wire.

(2) Inspection procedures

1) When a P.C. board is judged to be defective, check for disconnection, burning, or discoloration of the copper foil pattern or this P.C. board.

2) The P.C. board consists of the following 2 parts

a. Main P.C. board part :

DC power supply circuit, Indoor fan motor control circuit, CPU and peripheral circuits, buzzer, and Driving circuit of louver.

b. Indication unit of infrared ray receiving infrared ray receiving circuit, LED :

To check defect of the P.C. board, follow the procedure described below.