Toshiba RAS-05BAVG-E, RAS-07BAVG-E, RAS-10BAVG-E, RAS-13BAVG-E, RAS-16BAVG-E User Manual

SERVICE MANUAL

FILE NO. SVM-16030-2

SPLIT TYPE

Indoor Unit

RAS-05BKVG-E
RAS-07BKVG-E
RAS-10BKVG-E

RAS-13BKVG-E
RAS-16BKVG-E

Outdoor Unit

RAS-05BAVG-E
RAS-07BAVG-E
RAS-10BAVG-E

RAS-13BAVG-E
RAS-16BAVG-E

R32

Revised on Jun, 2016

CONTENTS

FILE NO. SVM-16030

- 2 -

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

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

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

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

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

6. SPECIFICATIONS OF ELECTRICAL PARTS ......................................... 23

7. REFRIGERANT CYCLE DIAGRAM ........................................................ 24

8. CONTROL BLOCK DIAGRAM ................................................................ 28

9. OPERATION DESCRIPTION................................................................... 31

10. INSTALLATION PROCEDURE ................................................................ 55

11. HOW TO DIAGNOSE THE TROUBLE...................................................... 70

12. HOW TO REPLACE THE MAIN PARTS................................................... 98

13. EXPLODED VIEWS AND PARTS LIST ................................................. 119

1. SAFETY PRECAUTIONS

FILE NO. SVM-16030

- 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 ¿ 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 of outdoor unit shall be more than 1.5 mm2 (H07RN-F or 60245IEC66) polychloroprene
sheathed flexible cord.

• 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.

Ŷ

Important information regarding the refrigerant used

This product contains À 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

CAUTION

New Refrigerant Air Conditioner Installation

• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R32) WHICH DOES NOT
DESTROY OZONE LAYER.

R32 refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the
working pressure of R32 refrigerant is approx. 1.6 times of refrigerant R22. Accompanied with the adoption
of the new refrigerant, the refrigeration machine oil has also been changed. Therefore, during installation
work, be sure that water, dust, former refrigerant, or refrigeration machine oil does not enter into the new
type refrigerant R32 air conditioner circuit.

To prev ent mixing of refrigerant or refrigerating machine oil, the sizes of connecting sections of charging
port on main unit and installation tools are different from those used for the conventional refrigerant units.

Accordingly, special tools are required for the new refrigerant (R32) units. For connecting pipes, use new
and clean piping materials with high pressure fittings made for R32 only, so that water and/or dust does not
enter. Moreover, do not use the existing piping because there are some problems with pressure fittings and
possible impurities in existing piping.

CAUTION

TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY

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

DANGER

FILE NO. SVM-16030

- 4 -

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

INAPPROPRIATE SERVICING MA Y 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 INCOR­RECTLY CONNECTED, ELECTRIC PARTS MAY BE D

• 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 MO VING THE AIR-CONDITIONER FOR INSTALLATION IN ANOTHER PLACE, BE VERY CARE­FUL NOT TO ALLOW THE SPECIFIED REFRIGERANT (R410A) T O 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.

AMAGED.

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 cab les 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.

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

FILE NO. SVM-16030

- 5 -

•

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

•

piping, À 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.

•

Do not perform flare connection inside a building or dwelling or room, when joining the heat exchanger of

•

indoor unit with interconnection piping. Refrigerant connection inside a building or dwelling or room must be
made by brazing or welding. Joint connection of indoor unit by flaring method can only be made at outdoor or
at outside of building or dwelling or room. Flare connection may cause gas leak and flammable atmosphere.
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.

• Appliance and pipe-work shall be installed, operated and stored in a room with a floor area large than A

How to get A

m2 : A

min

= (M / (2.5 x 0.22759 x h0))

min

2

min

M is the refrigerant charge amount in appliance in kg. h0 is the installation height of the appliance in m : 0.6 m
for floor standing/1.8m for wall mounted/1.0 m for window mounted/2.2 m for ceiling mounted.

• Comply with national gas regulations.

CAUTION

m

2

• E

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

ult in an electrical short.

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.

, be careful when handling parts with sharp edges.

If the air conditioner is not installed appropriately, ac

ged air might disturb neighbors.

cidents may occur due to the falling unit.

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.

2. SPECIFICATIONS

FILE NO. SVM-16030

- 6 -

2-1. Specification

Unit model Indoor

Outdoor
Cooling capacity (kW)
Cooling capacity range (kW) 0.67-2.60
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 0.20-0.18 0.20-0.18 0.22-0.20

Power consumption (W) 26 29 28 31
Power factor (%) 63 66 64 64

Outdoor Operation mode Cooling Heating Cooling Heating

Running current (A) 1.83-1.68 2.20-2.02 2.75-2.52 3.03-2.75
Power consumption (W) 364 441 552 607
Power factor (%) 90 91 91 92

Starting current (A)
COP (Cooling / Heating) 3.85/4.26 3.45-3.91
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) 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) 20 20
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) 21 21
Compressor Motor output (W) 500 500

Type

Model NX66F0F-20D

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)

(m3 / min)

(oC)

(C)

RAS-05BKVG-E

RAS-05BAVG-E

1.50 2.00

0.66-2.00

2.00

0.54-3.00
1Ph/50Hz/220-240V

1.94 2.30 2.84

RAS-05BKVG-E RAS-07BKVG-E

8.7/8.9 8.7/8.9

RAS-05BAVG-E RAS-07BAVG-E

Single rotary type with DC-inverter variable speed control

29/30 29/30

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

21-32/0-28 21-32/0-28

-15,46/-15,24

1

1

1

-

6(4x25L)

2(3.1Lx16L)

1

RAS -07BKVG-E

RAS -07 BAVG-E

0.55-3.30

NX66F0F-20D

-15,46/-15,24

3.10

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

2-1. Specification

FILE NO. SVM-16030

- 7 -

Unit model Indoor

Outdoor
Cooling capacity (kW)
Cooling capacity range (kW) 0.75-3.60
Heating capacity (kW) 3.60
Heating capacity range (kW)
Power supply
Electric Indoor Operation mode Cooling Heating Cooling Heating
characteristic Running current (A) 0.21-0.19 0.22-0.20 0.22-0.20 0.23-0.21

Power consumption (W) 30 31 34 35
Power factor (%) 65 64 70 69

Outdoor Operation mode Cooling Heating Cooling Heating

Running current (A) 3.64-3.34 2.95-2.70 5.28-4.85 4.42-4.04
Power consumption (W) 740 589 1096 925
Power factor (%) 92 91 94 95

Starting current (A)
COP (Cooling / Heating) 3.25/3.75 2.92-3.75
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) 49/51 50/51

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) 20 20
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) 21 22
Compressor Motor output (W) 750 750

Type

Model NX89F0F-20D

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 0.43

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)

(m3 / min)

(oC)

(C)

RAS-10BKVG-E

RAS-10BAVG-E

2.50 3.30

0.68-3.00

3.20

0.71-3.90
1Ph/50Hz/220-240V

3.70 3.17 5.30

RAS-10BKVG-E RAS-13BKVG-E

9.0/9.2 10.0/10.3

RAS-10BAVG-E RAS-13BAVG-E

Single rotary type with DC-inverter variable speed control

31.0/31.0 33/33

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

21-32/0-28 21-32/0-28

-15,46/-15,24

1

1

1

-

6(4x25L)

2(3.1Lx16L)

1

RAS -13BKVG-E

RAS-13BAVG-E

0.72-4.50

NX89F0F-20D

-15,46/-15,24

4.19

2-1. Specification

FILE NO. SVM-16030

- 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) 0.25-0.23 0.22-0.20

Power consumption (W) 45 31
Power factor (%) 82 64

Outdoor Operation mode Cooling Heating

Running current (A) 6.94-6.37 2.95-2.70
Power consumption (W) 1530 589
Power factor (%) 97 91

Starting current (A)
COP (Cooling / Heating) 3.01/3.48
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) 50/52

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) 34
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) 0.80

Wiring Power supply 3 Wires: Includes earth (Outdoor)
connection Interconnection 4 Wires: Includes earth
Usable temperature range Indoor (Cooling / Heating) 21-32/0-28

Outdoor (Cooling / Heating)

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)

(m3 / min)

(oC)

(C)

6.95 3.17

Single rotary type with DC-inverter variable speed control

RAS -16BKVG-E

RAS -16BAVG-E

4.60

1.20-5.30

5.40

0.93-6.40

1Ph/50Hz/220-240V

RAS-16BKVG-E

12.5/12.8

RAS-16BAVG-E

34/36

6.35

12.7

6.35
12.7

R32

-15,46/-15,24

2

-

6(4x25L)

2(3.1Lx16L)

1

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

2-2. Operation Characteristic Curve

FILE NO. SVM-16030

- 9 -

<Cooling> <Heating>

7

RAS-16BKVG-E

RAS-16BKVG-E

6

RAS-13BKVG-E

5

RAS-10BKVG-E

4

RAS-07BKVG-E

3

Current (A)

RAS-05BKVG-E

2

Conditions
Indoor : DB 27

1

Outdoor : DB 35
Indoor Air Flow : High
Pipe Length : 5m
Voltage : 230V

o

C/WB 19oC

o

C/WB 24oC

0

0 102030405060708090100

Compressor Speed (RPS)

7

6

5

RAS-16BKVG-E

RAS-13BKVG-E

RAS-10BKVG-E

4

RAS-07BKVG-E

3

Current (A)

RAS-05BKVG-E

2

Conditions
Indoor : DB 20

1

Outdoor : DB 7
Indoor Air Flow : High
Pipe Length : 5m
Voltage : 230V

o

C/WB 15oC

o

C/WB 6oC

0

0 102030405060708090100

Compressor Speed (RPS)

2-3. Capacity Variation ratio According to Temperature.

<Cooling> <Heating>

105.0

100.0

95.0

90.0

85.0

80.0

75.0

Cooling Capacity ratio (%)

70.0

65.0

60.0

55.0

Capacity ratio : 100 %=

1.50kW(RAS-05BKVG-E)

2.00kW(RAS-07BKVG-E)

2.50kW(RAS-10BKVG-E)

3.30kW(RAS-13BKVG-E)

4.60kW(RAS-16BKVG-E)

Conditions
Indoor : DB 27
Outdoor : DB 35
Indoor Air Flow : High
Pipe Length : 5m
Voltage : 230V

o

C/WB 19oC

o

C/WB 24oC

50.0
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Outside Temperature ( oC)

120.0

100.0

80.0

60.0

Heating Capacity ratio (%)

40.0

20.0

0.0

-15 -10 -5 0 5 10

Capacity ratio : 100 %=

2.00kW(RAS-05BKVG-E)

2.50kW(RAS-07BKVG-E)

3.20kW(RAS-10BKVG-E)

3.60kW(RAS-13BKVG-E)

5.40kW(RAS-16BKVG-E)

Outside Temperature ( ºC)

Conditions
Indoor : DB 20
Outdoor : DB 7
Indoor Air Flow : High
Pipe Length : 5m
Voltage : 230V

o

C/WB 15oC

o

C/WB 6oC

3. REFRIGERANT R32

FILE NO. SVM-16030

- 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
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) such as gas-burning equipment
and electric heaters in places where installation,
repairs, or similar work on air-conditioning
equipment is performed.

are inclined to settle near the floor

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
shown in Table 3-2-1. Never use copper pipes
thinner than 0.8 mm even when it is available on
the market.

as

Table 3-2-1 Thicknesses of annealed copper pipes

FILE NO. SVM-16030

- 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

0.80 0.80

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 remov e 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 sock et 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 ma y occur.
Carefully remove all burrs and clean the cut surface before installation.

c) Insertion of Flare Nut

d) Flare Processing

FILE NO. SVM-16030

- 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 “dimen-
sion 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 pr ocessing dimensions

Flare tool for R32

clutch type

ØD

A

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

0.8

0.8

1.0

Thickness

(mm)

0.8

0.8

0.8

1.0

0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5

Flare tool for R22

clutch type

0 to 0.5
0 to 0.5
0 to 0.5
0 to 0.5

1.0 to 1.5 1.5 to 2.0

1.0 to 1.5 1.5 to 2.0

1.0 to 1.5 2.0 to 2.5

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 1.0 to 1.5

0.5 to 1.0 1.5 to 2.0

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

0.8

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)

17
22
26
29

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

FILE NO. SVM-16030

- 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

0.8

0.8

1.0

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

D

C

43˚ to 45˚

Flare nut width

(mm)

17
22
24
27
36

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)

3-3. Tools

FILE NO. SVM-16030

- 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

Yes

Yes

Yes

Yes

Yes
Yes

Yes

R32(R410A)

Whether conven­tional equipment
can be used

*(Note 1)

*(Note 1)

×
×

×
×

×

air-water heat pump installation

No.

1

2

3

4
5
6

7

8

(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 f or R22 are necessary
as the general tools.

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

2. Torque wrench (For Ø6.35, 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. Le vel vial

7. Screwdriver (+, –)

8. Spanner or Monk ey wrench

11 . Tape measure

12. Metal saw

3. Insulation resistance tester

4. Electroscope

9. Hole core drill (Ø65)

(Opposite side 4mm)

3-4. Recharging of Refrigerant

FILE NO. SVM-16030

- 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

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

FILE NO. SVM-16030

- 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 ]

Refrigerant

cylinder

Gauge manifold

OUTDOOR unit

Refrigerant

cylinder

Gauge manifold

OUTDOOR unit

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 an y 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.

2. Characteristics required for flux

FILE NO. SVM-16030

- 17 -

• Activated temperature of flux coincides with the
brazing temperature.

• Due to a wide effectiv e 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 o xide 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 prev ent 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
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.

M

Flow meter

Stop valve

Nitrogen gas

cylinder

From Nitrogen cylinder

Pipe

Nitrogen
gas

Rubber plug

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

4. CONSTRUCTION VIEWS

FILE NO. SVM-16030

- 18 -

4-1. Indoor Unit

Front Panel

Back Body

7 55

50

Knock Out System

Grille Inlet

Air Inlet

293

Hert Exchanger

798

Air Outlet

Air Filter

230

50

Knock Out System

7 55

50

114

Drain hose (0.4m)

Installation plate hanger

Connecting pipe (0.35m)
(Flare

144 144

55 66.5

97 24

Installation plate hanger

131 131 140 131 120 24

340

9.52mm)

510

192 192

170 170

Hanger

50

55 66.5

Installation plate hanger

Connecting pipe (0.40m)

(Flare

6.35mm)

110

58

17.5

Wireless remote controller

64.5

73.5

25

Remote controller holder

298

40

65

Hanger Hanger

94 94 135 170 170 135

Center line

65

Installation plate outline

Outline of indoor unit

40

4-2. Outdoor Unit (RAS-05,07,10,13BAVG-E)

FILE NO. SVM-16030

- 19 -

(Unit : mm)

C

L

C

L

280

400

4-3. Outdoor Unit (RAS-16BAVG-E)

FILE NO. SVM-16030

- 20 -

(Unit : mm)

600

50

36

320

306

A detail Drawing (Back leg)

R5.5

R

Ø

15

6 hole

28

86

320

Ø

FAN-GUARD

436

Ø

550

275

A

25 Drain outlet

108 125

2

-

Ø

11 x 14

(For 8 -

Ø

Ø

80

Hole

10 anchor bolt)

306

320

Ø

6 hole

11x14 hole

Ø

36
50

B Detail Drawing (Front leg)

R

15

COVER-PV

Z

290

100 or more

320

Z View

600

Air intlel

9060090

69

600 or more

137

92

320
342

5

4

Liquid side

(Flare 6.35)

Gas side

(Flare ∅ 12.7)

Service port

Ø

100 or more

Air outlel

600 or more

Installation dimension

RAS-05BKVG-E / RAS-05BAVG-E

FILE NO. SVM-16030

- 21 -

RAS-07BKVG-E / RAS-07BAVG-E
RAS-10BKVG-E / RAS-10BAVG-E
RAS-13BKVG-E / RAS-13BAVG-E

5. WIRING DIAGRAM

RAS-16BKVG-E / RAS-16BAVG-E

FILE NO. SVM-16030-2

- 22 -

6-1. Indoor Unit

FILE NO. SVM-16030-2

- 23 -

6. SPECIFICATIONS OF ELECTRICAL PARTS

No. ype SpecificatType

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

Louver motor 24BYJ48A-080 Output (Rated) 4 phase, DC12V

4

Parts name

RAS-05, 07, 10, 13

RAS-16

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

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

6-2. Outdoor Unit

No. Type name Specifications

1 Compressor RAS-05, 07 NX66F0F-20D 3-Phases (6-Poles) ; 630W

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

Parts name

RAS-10, 13 NX89F0F-20D 3-Phases (6-Poles) ; 790W

RAS-16

KSN108D22UFZ

3-Phases (6-Poles) ; 840W

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

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

5 Reactor RAS-16 CH-69-Z-T L = 19mH, 10A

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

10kΩ at 25°C

62kΩ at 20°C

10kΩ at 25°C

10kΩ at 25°C

AC 250V, 20A

7. REFRIGERANT CYCLE DIAGRAM

FILE NO. SVM-16030-2

- 24 -

7-1. Refrigerant Cycle Diagram

RAS-05BKVG-E / RAS-05BAVG-E
RAS-07BKVG-E / RAS-07BAVG-E

INDOOR UNIT

Indoor heat

exchanger

T1

Temp. measurement

TC

P

Pressure measurement
Gauge attaching port

Vacuum pump connecting port

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

4-way valve

TS

Muffler

Muffler

Compressor

NX66F0F-20D

Outdoor heat

exchanger

Cross flow fan

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

Sectional shape
of heat insulator

TD

TO

Split capillary

TA

Allowable height

difference : 12m

Strainer

Pulse Modulating
valve at liquid side

Strainer

Max. : 15m

Min. : 2m
Chargeless : 15m

Allowable pipe length

Temp. measurement

T2

Propeller fan

OUTDOOR UNIT

TE

05k and 07k Refrigerant amount : 0.40kg

NOTE :

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

RAS-10BKVG-E / RAS-10BAVG-E

FILE NO. SVM-16030-2

- 25 -

RAS-13BKVG-E / RAS-13BAVG-E

INDOOR UNIT

Indoor heat

exchanger

T1

Temp. measurement

TC

P

Pressure measurement
Gauge attaching port

Vacuum pump connecting port
Deoxidized copper pipe

Outer dia. : 9.52mm

Thickness : 0.8mm

4-way valve

TS

Muffler

Cross flow fan

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

Sectional shape
of heat insulator

Muffler

TD

Compressor

NX89F0F-20D

TA

Allowable height

difference : 12m

Strainer

Pulse Modulating
valve at liquid side

Strainer

Max. : 15m

Min. : 2m
Chargeless : 15m

Allowable pipe length

Temp. measurement

T2

Outdoor heat

exchanger

Propeller fan

OUTDOOR UNIT

TE

TO

10k and 13k Refrigerant amount : 0.43kg

NOTE :

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

RAS-16BKVG-E / RAS-16BAVG-E

FILE NO. SVM-16030-2

- 26 -

INDOOR UNIT

Indoor heat

exchanger

T1

Temp. measurement

TC

P

Pressure measurement

Gauge attaching port
Vacuum pump connecting port

Deoxidized copper pipe

Outer dia. : 12.7mm

Thickness : 0.8mm

4-way valve

TS

Muffler

Muffler

Cross flow fan

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

Sectional shape
of heat insulator

TD

Compressor

KSN108D22UFZ

TA

Allowable height

difference : 12m

Strainer

Pulse Modulating
valve at liquid side

Strainer

Max. : 15m

Min. : 2m
Chargeless : 15m

Allowable pipe length

Temp. measurement

T2

Outdoor heat

exchanger

Propeller fan

OUTDOOR UNIT

TE

TO

NOTE :

Refrigerant amount : 0.80kg

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

7-2. Operation Data

FILE NO. SVM-16030-2

- 27 -

<Cooling>

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

05BKVG-E

07BKVG-E

10BKVG-E
13BKVG-E
16BKVG-E

1.2 to 1.3

1.1 to 1.3

1.1 to 1.3 11 to 13 59 to 51

1.0 to 1.1 9 to 10 51 to 52

1.0 to 1.1 9 to 10 47 to 58

11 to 13

pipe temp.

13 to 15

43 to 45

47 to 49

High

High High

High High
High High
High High

High

36

52
52
78
86

<Heating>

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

05BKVG-E

07BKVG-E

10BKVG-E
13BKVG-E
16BKVG-E

2.1 to 2.2 34 to 36

2.1 to 2.4 35 to 40

2.4 to 2.6 40 to 42

2.6 to 2.7 43 to 44 0 to 1

2.8 to 2.9 45 to 47 1 to 2

pipe temp.

1 to 2
0 to 1 High High
0 to 1 High High

High High

High High
High High

51

65
68

73
84

NOTES :

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

2. Connecting piping condition : 5 m

8-1. Indoor Unit

FILE NO. SVM-16030-2

- 28 -

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

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

8-2. Outdoor Unit (Inverter Assembly)

FILE NO. SVM-16030-2

- 29 -

RAS-05BKVG-E / RAS-05BAVG-E
RAS-07BKVG-E / RAS-07BAVG-E
RAS-10BKVG-E
RAS-13BKVG-E / RAS-13BAVG-E

/ RAS-10BAVG-E

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

• PWM synthesis function

circuit

Indoor unit

send/receive

IPM over-current detect control

• Input current release control

•

• 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

Inverter

Drrive

Clock

10MHz

circuit

Converter

(AC → DC)

Detector

High current

Filter

Noise

Driver circuit

frequency

• Signal communication to indoor unit

High Power

factor Correction

(DC → AC)

circuit

of P.M.V.

valve

4-way

P.M.V.

230V ~60Hz

−

220

220–240V ~50Hz

For INDOOR UNIT

Discharge

temp. sensor

Outdoor air

temp. sensor

Suction temp.

sensor

temp.sensor

Heat exchanger

8-2. Outdoor Unit (Inverter Assembly)

FILE NO. SVM-16030-2

- 30 -

RAS-16BKVG-E / RAS-16BAVG-E

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

• PWM synthesis function

circuit

Indoor unit

send/receive

IPM over-current detect control

• Input current release control

•

• 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

Inverter

Drrive

Clock

10MHz

circuit

Converter

(AC → DC)

Detector

High current

Filter

Noise

Driver circuit

frequency

• Signal communication to indoor unit

High Power

factor Correction

(DC → AC)

circuit

of P.M.V.

valve

4-way

P.M.V.

230V ~60Hz

−

220

220–240V ~50Hz

For INDOOR UNIT

Discharge

temp. sensor

Outdoor air

temp. sensor

Suction temp.

sensor

temp.sensor

Heat exchanger