Toshiba RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-10SAVP-E User Manual

FILE NO. A06-011

SERVICE MANUAL

AIR-CONDITIONER

Indoor Unit

<High Wall, Heat Pump Type>

(Standard Type)

RAS-B10SKVP-E

RAS-B13SKVP-E

RAS-B16SKVP-E

(North Europe Type)

SPLIT TYPE

Outdoor Unit

<Heat Pump Type>

RAS-10SAVP-E RAS-13SAVP-E RAS-16SAVP-E

RAS-10SKVP-ND RAS-13SKVP-ND RAS-16SKVP-ND

RAS-10SAVP-ND RAS-13SAVP-ND RAS-16SAVP-ND

R410A

PRINTED IN JAPAN, Fub, 2007 ToMo

CONTENTS

1.	SAFETY PRECAUTIONS ..........................................................................	3
2.	SPECIFICATIONS......................................................................................	5
3.	REFRIGERANT R410A .............................................................................	9
4.	CONSTRUCTION VIEWS ........................................................................	17
5.	WIRING DIAGRAM ..................................................................................	20
6.	SPECIFICATIONS OF ELECTRICAL PARTS .........................................	22
7.	REFRIGERANT CYCLE DIAGRAM ........................................................	23
8.	CONTROL BLOCK DIAGRAM ................................................................	25
9.	OPERATION DESCRIPTION ...................................................................	27
10.	INSTALLATION PROCEDURE ................................................................	55
11.	HOW TO DIAGNOSE THE TROUBLE ......................................................	68
12.	HOW TO REPLACE THE MAIN PARTS ...................................................	89
13.	EXPLODED VIEWS AND PARTS LIST .................................................	108
14.	SET UP OF SERVICE P.C. BOARD.......................................................	118

– 2 –

1. SAFETY PRECAUTIONS

For general public use

Power supply cord of outdoor unit shall be 1.5 mm ² (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.

CAUTION

New Refrigerant Air Conditioner Installation

•THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE LAYER.

R410A refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the working pressure of R410A 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 R410A air conditioner circuit.

To prevent 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 (R410A) units. For connecting pipes, use new and clean piping materials with high pressure fittings made for R410A 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

A switch or circuit breaker that can disconnect all poles must be included in the fixed wiring. Be sure to use an approved circuit breaker or switch.

DANGER

•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 INCORRECTLY 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.

–3 –

•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 CAREFUL NOT TO ALLOW THE SPECIFIED REFRIGERANT (R410A) 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.

CAUTION

•Exposure of unit to water or other moisture before installation may result 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 install in a place that can amplify the noise level of the unit or where noise or discharged air might disturb neighbors.

•To avoid personal injury, be careful when handling parts with sharp edges.

•Perform the specified installation work to guard against an earthquake.

If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.

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.

– 4 –

2. SPECIFICATIONS

2-1. Specifications

RAS-B10SKVP-E/RAS-B13SKVP-E/RAS-B16SKVP-E, RAS-10SAVP-E/RAS-13SAVP-E/RAS-16SAVP-E

Unit model

Indoor

RAS-B10SKVP-E

RAS-B13SKVP-E

RAS-B16SKVP-E

Outdoor

RAS-10SAVP-E

RAS-13SAVP-E

RAS-16SAVP-E

Cooling capacity

(kW)

2.5

3.5

4.5

Cooling capacity range

(kW)

0.5–3.5

0.6–4.5

0.8–5.0

Heating capacity

(kW)

3.2

4.2

5.5

Heating capacity range

(kW)

0.6 – 6.1

0.6 – 6.9

0.8 – 8.0

Power supply

1 Ph/50Hz/220–240 V, 1 Ph/60Hz/220 V

Operation mode

Cooling

Heating

Cooling

Heating

Cooling

Heating

Indoor

Running current

(A)

0.15

0.15

0.15

0.15

0.15

0.15

Power consumption

(W)

30

30

30

30

30

30

Electric

Power factor

(%)

87

87

87

87

87

87

Operation mode

Cooling

Heating

Cooling

Heating

Cooling

Heating

characteristics

Running current

(A)

2.57/2.45/2.34

3.15/3.00/2.87

4.00/3.82/3.66

4.40/4.20/4.02

6.18/5.90/5.65

6.83/6.43/6.25

Outdoor

Power consumption

(W)

460

600

820

920

1320

1460

Power factor

(%)

82

87

93

95

97

97

Starting current

(A)

3.30/3.15/3.02

4.55/4.35/4.17

6.98/6.68/6.40

COP

(Cooling/Heating)

5.10/5.08

4.12/4.42

3.33/3.69

High

(Cooling/Heating) (dB•A)

42/43

43/44

45/45

Operating

Indoor

Medium (Cooling/Heating) (dB•A)

33/36

34/37

36/39

noise

Low

(Cooling/Heating) (dB•A)

27/27

27/27

29/29

Outdoor

(Cooling/Heating) (dB•A)

46/47

48/50

49/50

Unit model

RAS-B10SKVP-E

RAS-B13SKVP-E

RAS-B16SKVP-E

Height

(mm)

250

250

250

Dimension

Width

(mm)

790

790

790

Indoor unit

Depth

(mm)

208

208

208

Net weight

(kg)

9

9

9

Fan motor output

(W)

30

30

30

Air flow rate

(Cooling/Heating)

(m³/h)

550/620

570/640

630/670

Unit model

RAS-10SAVP-E

RAS-13SAVP-E

RAS-16SAVP-E

Height

(mm)

550

550

550

Dimension

Width

(mm)

780

780

780

Depth

(mm)

290

290

290

Outdoor unit

Net weight

(kg)

38

38

38

Motor output

(W)

750

750

750

Compressor

Type

Twin rotary type with DC-inverter variable speed control

Model

DA111A1F-24F

DA111A1F-24F

DA111A1F-24F

Fan motor output

(W)

43

43

43

Air flow rate

(Cooling/Heating) (m³/h)

1740/1620

1950/1620

2160/1740

Type

Flare connection

Flare connection

Flare connection

Indoor unit

Liquid side

Ø6.35

Ø6.35

Ø6.35

Gas side

Ø9.52

Ø9.52

Ø12.7

Piping

Outdoor unit

Liquid side

Ø6.35

Ø6.35

Ø6.35

connection

Gas side

Ø9.52

Ø9.52

Ø12.7

Maximum length

(m)

25

25

25

Maximum chargeless length

(m)

15

15

15

Maximum height difference

(m)

10

10

10

Refrigerant

Name of refrigerant

R410A

R410A

R410A

Weight

(kg)

1.05

1.05

1.05

Wiring

Power supply

3 Wires : includes earth (Outdoor)

connection

Interconnection

4 Wires : includes earth

Usable

Indoor

(Cooling/Heating)

(°C)

21–32/0–28

21–32/0–28

21–32/0–28

temperature range

Outdoor (Cooling/Heating)

(°C)

5–46/–15–24

5–46/–15–24

5–46/–15–24

Installation plate

1

1

1

Wireless remote controller

1

1

1

Batteries

2

2

2

Indoor

Remote controller holder

1

1

1

Mounting screw

6 (Ø4 × 25L)

6 (Ø4 × 25L)

6 (Ø4 × 25L)

unit

Accessory

Remote controller holder mounting screw

2 (Ø3.1 × 16L)

2 (Ø3.1 × 16L)

2 (Ø3.1 × 16L)

Plasma pure filter

1

1

1

Installation manual

1

1

1

Owner’s manual

1

1

1

Outdoor

Drain nipple

1

1

1

unit

Water-proof rubber cap

2

2

2

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

–5 –

RAS-10SKVP-ND, RAS-13SKVP-ND, RAS-16SKVP-ND/RAS-10SAVP-ND, RAS-13SAVP-ND, RAS-16SAVP-ND

Unit model

Indoor

RAS-10SKVP-ND

RAS-13SKVP-ND

RAS-16SKVP-ND

Outdoor

RAS-10SAVP-ND

RAS-13SAVP-ND

RAS-16SAVP-ND

Cooling capacity

(kW)

2.5

3.5

4.5

Cooling capacity range

(kW)

0.5–3.5

0.6–4.5

0.8–5.0

Heating capacity

(kW)

3.2

4.2

5.5

Heating capacity range

(kW)

0.6 – 6.1

0.6 – 6.9

0.8 – 8.0

Power supply

1 Ph/50Hz/220–240 V

Operation mode

Cooling

Heating

Cooling

Heating

Cooling

Heating

Indoor

Running current

(A)

0.15

0.15

0.15

0.15

0.15

0.15

Power consumption

(W)

30

30

30

30

30

30

Electric

Power factor

(%)

87

87

87

87

87

87

Operation mode

Cooling

Heating

Cooling

Heating

Cooling

Heating

characteristics

Running current

(A)

2.57/2.45/2.34

3.15/3.00/2.87

4.00/3.82/3.66

4.40/4.20/4.02

6.18/5.90/5.65

6.83/6.43/6.25

Outdoor

Power consumption

(W)

460

600

820

920

1320

1460

Power factor

(%)

82

87

93

95

97

97

Starting current

(A)

3.30/3.15/3.02

4.55/4.35/4.17

6.98/6.68/6.40

COP

(Cooling/Heating)

5.10/5.08

4.12/4.42

3.33/3.69

High

(Cooling/Heating) (dB•A)

42/43

43/44

45/45

Operating

Indoor

Medium (Cooling/Heating) (dB•A)

33/36

34/37

36/39

noise

Low

(Cooling/Heating) (dB•A)

27/27

27/27

29/29

Outdoor

(Cooling/Heating) (dB•A)

46/47

48/50

49/50

Unit model

RAS-10SKVP-ND

RAS-13SKVP-ND

RAS-16SKVP-ND

Height

(mm)

250

250

250

Dimension

Width

(mm)

790

790

790

Indoor unit

Depth

(mm)

208

208

208

Net weight

(kg)

9

9

9

Fan motor output

(W)

30

30

30

Air flow rate

(Cooling/Heating)

(m³/h)

550/620

570/640

630/670

Unit model

RAS-10SAVP-ND

RAS-13SAVP-ND

RAS-16SAVP-ND

Height

(mm)

550

550

550

Dimension

Width

(mm)

780

780

780

Depth

(mm)

290

290

290

Outdoor unit

Net weight

(kg)

38

38

38

Motor output

(W)

750

750

750

Compressor

Type

Twin rotary type with DC-inverter variable speed control

Model

DA111A1F-24F

DA111A1F-24F

DA111A1F-24F

Fan motor output

(W)

43

43

43

Air flow rate

(Cooling/Heating) (m³/h)

1740/1620

1950/1620

2160/1740

Type

Flare connection

Flare connection

Flare connection

Indoor unit

Liquid side

Ø6.35

Ø6.35

Ø6.35

Gas side

Ø9.52

Ø9.52

Ø12.7

Piping

Outdoor unit

Liquid side

Ø6.35

Ø6.35

Ø6.35

connection

Gas side

Ø9.52

Ø9.52

Ø12.7

Maximum length

(m)

25

25

25

Maximum chargeless length

(m)

15

15

15

Maximum height difference

(m)

10

10

10

Refrigerant

Name of refrigerant

R410A

R410A

R410A

Weight

(kg)

1.05

1.05

1.05

Wiring

Power supply

3 Wires : includes earth (Outdoor)

connection

Interconnection

4 Wires : includes earth

Usable

Indoor

(Cooling/Heating)

(°C)

21–32/0–28

21–32/0–28

21–32/0–28

temperature range

Outdoor (Cooling/Heating)

(°C)

5–46/–15–24

5–46/–15–24

5–46/–15–24

Installation plate

1

1

1

Wireless remote controller

1

1

1

Batteries

2

2

2

Indoor

Remote controller holder

1

1

1

Mounting screw

6 (Ø4 × 25L)

6 (Ø4 × 25L)

6 (Ø4 × 25L)

unit

Accessory

Remote controller holder mounting screw

2 (Ø3.1 × 16L)

2 (Ø3.1 × 16L)

2 (Ø3.1 × 16L)

Plasma pure filter

1

1

1

Installation manual

1

1

1

Owner’s manual

1

1

1

Outdoor

Drain nipple

1

1

1

unit

Water-proof rubber cap

2

2

2

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

–6 –

2-2. Operation Characteristic Curve
RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E
<Cooling>									<Heating>
	10									10
	9									9
	8									8
	7									7
	6									6
(A)	5								(A)	5
Current	4								Current	4
	3									3
	2			• Conditions						2		• Conditions
				Indoor : DB 27˚C/WB 19˚C								Indoor : DB 20˚C
				Outdoor : DB 35˚C								Outdoor : DB 7˚C/WB 6˚C
	1			Air flow : High						1		Air flow : High
				Pipe length : 5m								Pipe length : 5m
				Voltage : 230V								Voltage : 230V
	00	20	40	60	80	100	120	140		00	20	40	60	80	100	120	140

Compressor speed (rps)

Compressor speed (rps)

RAS-10SKVP-ND, RAS-13SKVP-ND, RAS-16SKVP-ND
<Cooling>									<Heating>
	10									10
	9									9
	8									8
	7									7
	6									6
(A)	5								(A)	5
Current	4								Current	4
	3									3
	2			• Conditions						2		• Conditions
				Indoor : DB 27˚C/WB 19˚C								Indoor : DB 20˚C
				Outdoor : DB 35˚C								Outdoor : DB 7˚C/WB 6˚C
	1			Air flow : High						1		Air flow : High
				Pipe length : 5m								Pipe length : 5m
				Voltage : 230V								Voltage : 230V
	00	20	40	60	80	100	120	140		00	20	40	60	80	100	120	140

Compressor speed (rps)

Compressor speed (rps)

– 7 –

2-3. Capacity Variation Ratio According to Temperature
RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E
<Cooling>			<Heating>
	110			120
	100			100
ratio (%)	90		ratio (%)	80
	80			60
Capacity			Capacity
	70			40
	60	• Conditions		20		• Conditions
		Indoor : DB27˚C/WB19˚C				Indoor : DB 20˚C
		Indoor air flow : High				Indoor air flow : High
		Pipe length : 5m				Pipe length : 5m
	50			0	–10	–5	0	5	7	10
	32 33 34 35 36 37 38 39 40 41 42 43 44 45 46			–15
		Outdoor temp. (˚C)				Outdoor temp. (˚C)

RAS-10SKVP-ND, RAS-13SKVP-ND, RAS-16SKVP-ND
<Cooling>			<Heating>
	110			120
	100			100
ratio (%)	90		ratio (%)	80
	80			60
Capacity			Capacity
	70			40
	60	• Conditions		20		• Conditions
		Indoor : DB27˚C/WB19˚C				Indoor : DB 20˚C
		Indoor air flow : High				Indoor air flow : High
		Pipe length : 5m				Pipe length : 5m
	50			0	–10	–5	0	5	7	10
	32 33 34 35 36 37 38 39 40 41 42 43 44 45 46			–15
		Outdoor temp. (˚C)				Outdoor temp. (˚C)

– 8 –

3. REFRIGERANT R410A

This air conditioner adopts the new refrigerant HFC (R410A) which does not damage the ozone layer.

The working pressure of the new refrigerant R410A is 1.6 times higher than conventional refrigerant (R22). The refrigerating oil is also changed in accordance with change of refrigerant, so be careful that water, dust, and existing refrigerant or refrigerating oil are not entered in the refrigerant cycle of the air conditioner using the new refrigerant during installation work or servicing time.

The next section describes the precautions for air conditioner using the new refrigerant. Conforming to contents of the next section together with the general cautions included in this manual, perform the correct and safe work.

3-1. Safety During Installation/Servicing

As R410A’s pressure is about 1.6 times higher than that of R22, improper installation/servicing may cause a serious trouble. By using tools and materials exclusive for R410A, it is necessary to carry out installation/servicing safely while taking the following precautions into consideration.

1.Never use refrigerant other than R410A in an air conditioner which is designed to operate with R410A.

If other refrigerant than R410A is mixed, pressure in the refrigeration cycle becomes abnormally high, and it may cause personal injury, etc. by a rupture.

2.Confirm the used refrigerant name, and use tools and materials exclusive for the refrigerant R410A.

The refrigerant name R410A is indicated on the visible place of the outdoor unit of the air conditioner using R410A as refrigerant. To prevent mischarging, the diameter of the service port differs from that of R22.

3.If a refrigeration gas leakage occurs during installation/servicing, be sure to ventilate fully.

If the refrigerant gas comes into contact with fire, a poisonous gas may occur.

4.When installing or removing an air conditioner, do not allow air or moisture to remain in the refrigeration cycle. Otherwise, pressure in the refrigeration cycle may become abnormally high so that a rupture or personal injury may be caused.

5.After completion of installation work, check to make sure that there is no refrigeration gas leakage.

If the refrigerant gas leaks into the room, coming into contact with fire in the fan-driven heater, space heater, etc., a poisonous gas may occur.

6.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 R410A incurs pressure higher than when using R22, it is necessary to choose adequate materials.

Thicknesses of copper pipes used with R410A are as shown in Table 3-2-1. Never use copper pipes thinner than 0.8 mm even when it is available on the market.

– 9 –

Table 3-2-1 Thicknesses of annealed copper pipes

			Thickness (mm)
Nominal diameter	Outer diameter (mm)	R410A	R22
1/4	6.35	0.80	0.80
3/8	9.52	0.80	0.80
1/2	12.70	0.80	0.80
5/8	15.88	1.00	1.00

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		Reference outer diameter of	Minimum joint thickness
		copper pipe jointed (mm)	(mm)
1/4		6.35	0.50
3/8		9.52	0.60
1/2		12.70	0.70
5/8		15.88	0.80

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

– 10 –

d) Flare Processing

Make certain that a clamp bar and copper pipe have been cleaned.

By means of the clamp bar, perform the flare processing correctly.

Use either a flare tool for R410A or conventional flare tool.

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

ØD

A

Fig. 3-2-1 Flare processing dimensions

	Table 3-2-3		Dimensions related to flare processing for R410A
	Outer					A (mm)
Nominal			Thickness
	diameter				Flare tool for R410A	Conventional flare tool
diameter			(mm)
	(mm)
					clutch type	Clutch type	Wing nut type
1/4	6.35		0.8		0 to 0.5	1.0 to 1.5	1.5 to 2.0
3/8	9.52		0.8		0 to 0.5	1.0 to 1.5	1.5 to 2.0
1/2	12.70		0.8		0 to 0.5	1.0 to 1.5	2.0 to 2.5
5/8	15.88		1.0		0 to 0.5	1.0 to 1.5	2.0 to 2.5
	Table 3-2-4 Dimensions related to flare processing for R22
	Outer					A (mm)
Nominal			Thickness
	diameter				Flare tool for R22	Conventional flare tool
diameter			(mm)
	(mm)
					clutch type	Clutch type	Wing nut type
1/4	6.35		0.8		0 to 0.5	0.5 to 1.0	1.0 to 1.5
3/8	9.52		0.8		0 to 0.5	0.5 to 1.0	1.0 to 1.5
1/2	12.70		0.8		0 to 0.5	0.5 to 1.0	1.5 to 2.0
5/8	15.88		1.0		0 to 0.5	0.5 to 1.0	1.5 to 2.0

	Table 3-2-5	Flare and flare nut dimensions for R410A
Nominal	Outer diameter		Thickness		Dimension (mm)					Flare nut width
diameter	(mm)		(mm)	A		B	C		D	(mm)
1/4	6.35		0.8	9.1		9.2	6.5		13	17
3/8	9.52		0.8	13.2		13.5	9.7		20	22
1/2	12.70		0.8	16.6		16.0	12.9		23	26
5/8	15.88		1.0	19.7		19.0	16.0		25	29

– 11 –

		Table 3-2-6				Flare and flare nut dimensions for R22
Nominal	Outer diameter								Thickness									Dimension (mm)													Flare nut width
diameter		(mm)									(mm)						A		B	C						D					(mm)
1/4	6.35					0.8											9.0		9.2	6.5						13					17
3/8	9.52					0.8											13.0		13.5	9.7						20					22
1/2	12.70					0.8											16.2		16.0	12.9						20					24
5/8	15.88					1.0											19.7		19.0	16.0						23					27
3/4	19.05					1.0											23.3		24.0	19.2						34					36
			46˚
		to
		45˚
							B			A													C				D

				43˚	to
					45˚

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 R410A is the same as that for conventional R22. Incidentally, when the torque is weak, the gas leakage may occur.

When it is strong, the flare nut may crack and may be made non-removable.

When choosing the tightening torque, comply with values designated by manufacturers. Table 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 R410A [Reference values]

	Nominal	Outer diameter	Tightening torque	Tightening torque of torque
				wrenches available on the market
	diameter	(mm)	N•m (kgf•cm)
				N•m (kgf•cm)
	1/4	6.35	14 to 18 (140 to 180)	16 (160), 18 (180)
	3/8	9.52	33 to 42 (330 to 420)	42 (420)
	1/2	12.70	50 to 62 (500 to 620)	55 (550)
	5/8	15.88	63 to 77 (630 to 770)	65 (650)

– 12 –

3-3. Tools

3-3-1. Required Tools

The service port diameter of packed valve of the outdoor unit in the air-water heat pump using R410A is changed to prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.

The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.

1.Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))

2.Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)

3.Tools commonly used for R410A and for conventional refrigerant (R22)

The table below shows the tools exclusive for R410A and their interchangeability.

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

Tools whose specifications are changed for R410A and their interchangeability

				R410A		Conventional air-water
				air-water heat pump installation		heat pump installation
	No.	Used tool	Usage
				Existence of	Whether conven-	Whether new equipment
				new equipment	tional equipment	can be used with
				for R410A	can be used	conventional refrigerant
	1	Flare tool	Pipe flaring	Yes	*(Note 1)	¡
	2	Copper pipe gauge for	Flaring by	Yes	*(Note 1)	*(Note 1)
		adjusting projection
			conventional flare tool
		margin
	3	Torque wrench	Connection of flare nut	Yes	×	×
		(For Ø12.7)
	4	Gauge manifold	Evacuating, refrigerant	Yes	×	×
	5	Charge hose	charge, run check, etc.
	6	Vacuum pump adapter	Vacuum evacuating	Yes	×	¡
	7	Electronic balance for	Refrigerant charge	Yes	×	¡
		refrigerant charging
	8	Refrigerant cylinder	Refrigerant charge	Yes	×	×
	9	Leakage detector	Gas leakage check	Yes	×	¡
	10	Charging cylinder	Refrigerant charge	(Note 2)	×	×

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

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

General tools (Conventional tools can be used.)

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

1.Vacuum pump

Use vacuum pump by attaching vacuum pump adapter.

2.Torque wrench (For Ø6.35, Ø9.52)

3.Pipe cutter

4.	Reamer	9.	Hole core drill (Ø65)
5.	Pipe bender	10.	Hexagon wrench
6.	Level vial		(Opposite side 4mm)
7.	Screwdriver (+, –)	11.	Tape measure
8.	Spanner or Monkey wrench	12.	Metal saw

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

1.	Clamp meter	3.	Insulation resistance tester
2.	Thermometer	4.	Electroscope

– 13 –

3-4. Recharging of Refrigerant

When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps.

Recover the refrigerant, and check no refrigerant remains in the equipment.

Connect the charge hose to packed valve service port at the outdoor unit’s gas side.

Connect the charge hose to the vacuum pump adapter.

Open fully both packed valves at liquid and gas sides.

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

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.

(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.

(Water heat

(Outdoor unit)

exchanger unit)

		Opened
	Refrigerant cylinder
	(with siphon)
	Check valve	Opened
	Opened
	Open/close	Closed
	valve for charging
		Service port
	Electronic balance for refrigerant charging

Fig. 3-4-1 Configuration of refrigerant charging

– 14 –

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

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

It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant. Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the cylinder upside down if cylinder is not equipped with siphon.

[ Cylinder with siphon ]	[ Cylinder without siphon ]
Gauge manifold	Gauge manifold
OUTDOOR unit	OUTDOOR unit

Refrigerant

cylinder

Electronic

balance

R410A refrigerant is HFC mixed refrigerant. Therefore, if it is charged with gas, the composition of the charged refrigerant changes and the characteristics of the equipment varies.

cylinder Refrigerant

Electronic

balance

Siphon

Fig. 3-4-2

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.

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.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

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.

– 15 –

2.Characteristics required for flux

•Activated temperature of flux coincides with the brazing temperature.

•Due to a wide effective temperature range, flux is hard to carbonize.

•It is easy to remove slag after brazing.

•The corrosive action to the treated metal and brazing filler is minimum.

•It excels in coating performance and is harmless to the human body.

As the flux works in a complicated manner as described above, it is necessary to select an adequate type of flux according to the type and shape of treated metal, type of brazing filler and brazing method, etc.

3.Types of flux

•Noncorrosive flux

Generally, it is a compound of borax and boric acid.

It is effective in case where the brazing temperature is higher than 800°C.

•Activated flux

Most of fluxes generally used for silver brazing are this type.

It features an increased oxide film removing capability due to the addition of compounds such as potassium fluoride, potassium chloride and sodium fluoride to the borax-boric acid compound.

4.Piping materials for brazing and used brazing filler/flux

Piping material	Used brazing filler	Used flux
Copper - Copper	Phosphor copper	Do not use
Copper - Iron	Silver	Paste flux
Iron - Iron	Silver	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.

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.

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

– 16 –

4. CONSTRUCTION VIEWS

4-1. Indoor Unit

RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E

790

Plasma pure filter

7 60

Front panel	Indoor heat exchanger		790	Air filter		208
	250						51.5
55						65	7
Knockout system						Knockout system
							Remote controller holder
	53				53		64	5
	54.5	60		60	54.5			125.5

Installation plate hanging section

Wireless remote controller

Installation plate hanging section				290
		Connecting pipe (Outside length: 0.4m)
		Flare Ø9.52 (B16SKVP-E: Ø12.7)
		Hanging section		674
		91
				450
		10	10	288	10
			or more	(toMinimumceiling distance)
			47
250	167.5	(toMinimumwall distance)
		140 or more

	58	19
		163
Drain hose
(Outside length: 0.54m)	Part of Remote controller
Connecting pipe	WH-H04JE
(Outside length: 0.45m)
Flare Ø6.35

25

10

Stud bolt hole for Ø6

Stud bolt hole for Ø8 to Ø10

(Minimumto wall distance)

74 or more

42

42

3

Center line of main unit

	Lower part	Outline of
	hanging section	installation plate
			Center line of installation plate
91	304	304	91
		790

– 17 –

RAS-10SKVP-ND, RAS-13SKVP-ND, RAS-16SKVP-ND

790

Plasma pure filter

7 60

Front panel		Indoor heat exchanger			790	Air filter			208
		250								51.5
55									65	7
Knockout system									Knockout system
										Remote controller holder
		53						53		64	5
		54.5	60				60	54.5			125.5
				Installation plate hanging section
										Wireless remote controller
										58	19
											163
Installation plate hanging section					290		Drain hose
		Connecting pipe (Outside length: 0.4m)					(Outside length: 0.54m)		Part of Remote controller
							Connecting pipe			WH-H05JE
		Flare Ø9.52 (16SKVP-ND: Ø12.7)
							(Outside length: 0.45m)
							Flare Ø6.35
		91	Hanging section		674			25
					450
			10	10	288	10	10	Stud bolt hole for Ø6
				or more
					(toMinimumceiling distance)			Stud bolt hole for Ø8 to Ø10
				47
250	167.5	(toMinimumwall distance)						(toMinimumwall distance)
		140 or more						74 or more
								42

42

3

Center line of main unit

	Lower part	Outline of
	hanging section	installation plate
			Center line of installation plate
91	304	304	91
		790

– 18 –

4-2. Outdoor Unit

RAS-10SAVP-E, RAS-13SAVP-E, RAS-16SAVP-E, RAS-10SAVP-ND, RAS-13SAVP-ND, RAS-16SAVP-ND

69.5147

	A	leg part
320 Anchor bolt long hole pitch	306 Dia.7 hole pitch	290
	B	leg part
21
	6

550

483

449

8

35

52

32

88

28

600	90	Dia.11-14U-shape hole

(For dia.8-10 anchor bolt)

8-dia.7 hole

(For fixing outdoor unit)

		20	dia.11 × 14 long hole
			(For dia.8-10 anchor bolt)
	483	257		145	21
dia.436	108		Packed valve cover 157	79

Fan guard

											Connecting pipe port
											(Pipe dia.6.35)
						22
								54			Connecting pipe port
							137				(Pipe dia.9.52			: 10SAVP-E, ND)
						25 93					(Pipe dia.9.52			: 13SAVP-E, ND)
											(Pipe dia.12.7			: 16SAVP-E, ND)
		780			71	Charging port		31	143
								342
		500			4-dia.4.5 embossment
	Drain long hole
	dia.										600
20	25			88							54
		60									38
													R15
													.7 hole
Drain hole		108	125	20	30								2-dia
								320
										.5			Outside line
									R5			11
													of product
								Detailed				A	leg part
											11		2-dia.7 hole
								320					Outside line
													of product
								.5			38	R15
								R5
											54
											600
	Fin guard							Detailed				B	leg part

Mounting dimensions of anchor bolt

When iastalling the outdoor unit,

2-dia.11 × 14U-shape hole
(For dia.8-10 anchor bolt)	D
Intake
320

100 or more C

200 or more

Unit : mm

	600		Leave open in at least two of
		Intake	directions (A), (B), (C) and (D)
			shown in the figure below.
	50 or more
			250 or more
			A
		Outside line	(Minimum distance from wall)
		of product
	B
	Outlet	2-dia.11 × 14 long hole
		(For dia.8-10 anchor bolt)

– 19 –

5. WIRING DIAGRAM

5-1. Outdoor Unit

RAS-10SAVP-E, RAS-13SAVP-E, RAS-16SAVP-E

Compressor

RED

P04

BLK

Fan Motor

1 1

3

3

CM

2 2

WHI

P05

Q200 ~ 205

Q300 ~ 305

2

2

WHI

FM

BLK

P06

RED

3 3

IGBT

MOS-FET

CN300

1

1

Pulse Motor Valve

R221

R321

6

6

P25

5

5

YEL

P24

R220

R320

CN700

4

4

PMV

P23

3

3

YEL

P22

R219

R319

2

2

P21

1

1

BRW

P20

3

3

CN603

2

2

P35

L03

C13

P. C. Board

1

1

(TS)

YEL

P34

MCC-5009

Suction pipe

–

–

–

F03 Fuse

Temp. Sensor

P19

+

+

+

2

2

ORN

250V ~

CN602

P18

T3.15A

1

1

(TO)

Reactor

DB01

C12

C14

Outdoor

1 1

P11

Power Relay

L01 Varistor

Temp. Sensor

2 2

3

3

P08

CN601

DB02

2

2

1

1

(TD)

CT

Varistor

F01 Fuse

Discharge pipe

Temp. Sensor

Relay

Surge

250V ~

2

2

Q404

T25A

CN600

Absorber

1

1

(TE)

CN701

P07

P03 P10

P02

Condenser pipe

P33

P32

P31

P30

1 2 3

BLK

ORN BLK

WHI

Temp. Sensor

1 2

1 2 3

PUR

1 2

Reactor	Coil for	1 2 3 L N
	4-way Valve

5-2. Indoor Unit

Air Purifier

Power Supply

RAS-B10SKVP-E,

Electrode

220-240V~, 50Hz

220-220V~, 60Hz

RAS-B13SKVP-E,

BRW

4 4

RAS-B16SKVP-E

BRW

High-voltage

3 3

1 2 3

BRW

2 2

Power Supply

Indoor Terminal Block

Heat Exchanger

RED

1 1

BLK

RED

BLK

Heat

4 3 2 1

WHI

GRN & YEL

Exchanger

CN63

4 3 2 1

3 1 1

Sensor

CN41

BLK (YEL)

(TCJ)

CN42

CN02

CN01

CN51

(RED)

1 1

(WHI)

1

1

BRW

BLK

2 2

Micro SW

2

2

BLU

Heat Exchanger

Sensor

(TC)

BLK

1 1

CN62

F01 Fuse

AC 250V

RED

Fan Motor

BLK

2 2

(BLU)

1

1

T3.15A

2

2

BLK

Thermo Sensor

Varistor

3

3

(TA)

BLK

1 1

R01

CN31

4 4

WHI

DC Motor

CN61

(WHI)

5 5

YEL

BLK

2 2

(WHI)

6

6

BLU

UnitWirelessAssembly MCC-5052

1 1

WHI

1 1

CN32

1 1

WHI

1 1

2 2

BLU

2 2

Line Filter

SupplyPower Circuit

2 2

YEL

2 2

(WHI)

3 3

BLU

3 3

3

3

YEL

3 3

4 4

BLU

4 4

4

4

YEL

4 4

5 5

BLU

5 5

Main P. C. Board

~

DC5V

5 5

YEL

5 5

6 6

BLU

6 6

DC12V

Louver Motor

–

7 7

BLU

7 7

MCC-5045

+

1

~

+

8 8

BLU

8 8

2

CN22

9 9

BLU

9 9

3

(WHI)

10 10

BLU

10 10

4

CN10

CN21

(WHI)

(WHI)

– 20 –

5-3. Outdoor Unit

RAS-10SAVP-ND, RAS-13SAVP-ND, RAS-16SAVP-ND

Compressor

RED

P04

BLK

Fan Motor

1 1

3

3

CM

2 2

WHI

P05

Q200 ~ 205

Q300 ~ 305

2

2

WHI

FM

BLK

P06

RED

3 3

IGBT

MOS-FET

CN300

1

1

Pulse Motor Valve

R221

R321

6

6

P25

5

5

YEL

P24

R220

R320

CN700

4

4

PMV

P23

3

3

YEL

P22

R219

R319

2

2

P21

1

1

BRW

P20

3

3

CN603

2

2

P35

L03

C13

P. C. Board

1

1

(TS)

YEL

P34

MCC-5009

Suction pipe

–

–

–

F03 Fuse

Temp. Sensor

P19

+

+

+

2

2

ORN

250V ~

CN602

P18

T3.15A

1

1

(TO)

Reactor

DB01

C12

C14

Outdoor

1 1

P11

Power Relay

L01Varistor

Temp. Sensor

2 2

3

3

P08

CN601

DB02

CT

2

2

1

1

(TD)

Relay

Relay

Varistor

F01

Discharge pipe

Fuse

Temp. Sensor

Surge

250V~

CN600

2

2

Q404

Absorber

T25A

1

1

(TE)

CN703

CN701

P07

P03

P10

P02

Condenser pipe

P33

P32

P31

P30

1 2 3

1 2 3

BLK

ORN BLK

WHI

Temp. Sensor

1 2

1 2 3

1 2 3

PUR

1 2

Fuse

Reactor

250V~

1 2 3 L N

T3.15A

Coil for

5-4. Indoor Unit

4-way Valve

Air Purifier

Heater for

Power Supply

Electrode

220-240V~, 50Hz

RAS-10SKVP-ND,

Anti Freeze

RAS-13SKVP-ND,

RAS-16SKVP-ND

High-voltage

Power Supply

Heat Exchanger
Sensor
(TCJ)			BLK	1	1	CN63
BLK				2	2	(YEL)
Heat Exchanger
Sensor
(TC)			BLK	1	1	CN62
BLK				2	2	(BLU)
Thermo Sensor
(TA)			BLK	1	1	CN61
BLK				2	2	(WHI)
AssemblyUnitWireless 5052-MCC	1	1	WHI	1	1
	2	2	BLU	2	2
	3	3	BLU	3	3
	4	4	BLU	4	4
	5	5	BLU	5	5
	6	6	BLU	6	6
	7	7	BLU	7	7
	8	8	BLU	8	8
	9	9	BLU	9	9
	10 10		BLU	10 10
	CN10		CN21
	(WHI)		(WHI)

4 3 2 1
4 3 2 1		Indoor Terminal Block		1 2 3
BRW BRW BRW RED
	BLK		BLK	RED
4 3 2 1			WHI
4 3 2 1		3 1 1
CN42	CN02	CN01		CN51
(WHI)
	F01 Fuse
	AC 250V
	T3.15A
	Varistor
	R01			CN31
				(WHI)
				CN32
	Line Filter			(WHI)
				SupplyPower Circuit
Main P. C. Board		~	DC5V
			DC12V
MCC-5045		–	+
		~	+

	Heat Exchanger
		GRN & YEL
	CN41
	(RED)
	1	1	BRW	Micro SW
	2	2	BLU
	1	1	RED	Fan Motor
	2	2	BLK
	3	3
	4	4	WHI	DC Motor
	5	5	YEL
	6	6	BLU

1	1	WHI	1	1
2	2	YEL	2	2
3	3	YEL	3	3
4	4	YEL	4	4
5	5	YEL	5	5

Louver Motor

1
2	CN22
3	(WHI)
4

– 21 –

6. SPECIFICATIONS OF ELECTRICAL PARTS

6-1. Indoor Unit

RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E

RAS-10SKVP-ND, RAS-13SKVP-ND, RAS-16SKVP-ND

No.	Parts name	Type	Specifications
1	Fan motor (for indoor)	MF-280-30-5R	DC280–340V, 30W
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)	( – )	10kΩ at 25°C
5	Louver motor	MP24Z3N	Output (Rated) 1W, 16 poles, DC12V

6-2. Outdoor Unit

RAS-10SAVP-E, RAS-13SAVP-E, RAS-16SAVP-E

RAS-10SAVP-ND, RAS-13SAVP-ND, RAS-16SAVP-ND

No.	Parts name	Model name	Rating
1	Reactor	CH-57	L = 10mH, 16A
2	Outside fan motor	ICF-140-43-4R	DC140V, 43W
3	Suction temp. sensor (TS sensor)	(Inverter attached)	10kΩ (25°C)
4	Discharge temp. sensor (TD sensor)	(Inverter attached)	62kΩ (20°C)
5	Outside air temp. sensor (TO sensor)	(Inverter attached)	10kΩ (25°C)
6	Heat exchanger temp. sensor (TE sensor)	(Inverter attached)	10kΩ (25°C)
7	Terminal block (6P)	——	20A, AC250V
8	Compressor	DA111A1F-24F	3-phases 4-poles 750W
9	Coil for P.M.V.	CAM-MD12TF	DC12V
10	Coil for 4-way valve	STF	AC220–240V
11	Cord heater assembly (-ND model only)	CSC-2	AC230V, 75W
12	Heater fuse assembly (-ND model only)	——	AC250V, 3.15A

– 22 –

7. REFRIGERANT CYCLE DIAGRAM

7-1. Refrigerant Cycle Diagram

P Pressure measurement

Gauge attaching port

Vacuum pump connecting port

Deoxidized copper pipe Outer dia.:

9.52mm (10SAVP-E, -ND) 9.52mm (13SAVP-E, -ND) 12.7mm (16SAVP-E, -ND) Thickness: 0.8mm

4-way valve (STF-0108Z)

TS

	INDOOR UNIT	TCJ
	Indoor heat	T1	Temp. measurement
	exchanger
		TC	heightAllowable	10m:difference	lengthpipeAllowable
	Cross flow fan	TA				Max.	: 25m
						Min.	: 2m
	Deoxidized copper pipe					Chargeless : 15m
	Outer dia. : 6.35mm					Charge : 20g/m
	Thickness : 0.8mm					(16 to 25m)
	Sectional shape
	of heat insulator
	Muffler		Strainer

	Muffler	Pulse motor
		valve at liquid side
	TD	(CAM-B22YGTF-3)
	Compressor
	DA111A1F-24F
		TO
	Outdoor heat	Split capillary
	exchanger
		Ø1.2 x 80
		Ø1.2 x 80
		T1TE
	Propeller fan	T1T2 Temp. measurement

Refrigerant amount : 1.05kg

OUTDOOR UNIT

NOTE :

Gas leak check position

Refrigerant flow (Cooling)

Refrigerant flow (Heating)

NOTE :

•The maximum pipe length of this air conditioner is 25 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. 200g)

–23 –

7-2. Operation Data

<Cooling>

	Temperature			Standard	Heat exchanger				Compressor
	condition (°C)		Model name		pipe temp.		Indoor	Outdoor
				pressure					revolution
			RAS-				fan mode	fan mode
	Indoor	Outdoor		P (MPa)	T1 (°C)	T2 (°C)			(rps)
			B10SKVP-E	1.0 to 1.2	13 to 15	36 to 39	High	High	35
			10SKVP-ND
	27/19	35/–	B13SKVP-E	0.9 to 1.1	10 to 13	37 to 39	High	High	56
			13SKVP-ND
			B16SKVP-E	0.8 to 1.0	8 to 11	37 to 40	High	High	82
			16SKVP-ND

<Heating>

	Temperature			Standard	Heat exchanger				Compressor
	condition (°C)		Model name		pipe temp.		Indoor	Outdoor
				pressure					revolution
			RAS-				fan mode	fan mode
	Indoor	Outdoor		P (MPa)	T1 (°C)	T2 (°C)			(rps)
			B10SKVP-E	2.1 to 2.3	37 to 39	3 to 5	High	High	46
			10SKVP-ND
	20/–	7/6	B13SKVP-E	2.4 to 2.6	41 to 44	2 to 4	High	High	62
			13SKVP-ND
			B16SKVP-E	2.8 to 3.0	48 to 50	2 to 4	High	High	85
			16SKVP-ND

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

– 24 –

8. CONTROL BLOCK DIAGRAM

8-1. Indoor Unit

RAS-B10SKVP-E, RAS-B13SKVP-E, RAS-B16SKVP-E / RAS-10SKVP-ND, RAS-13SKVP-ND, RAS-16SKVP-ND

M.C.U.

Indoor Unit Control Unit

Heat Exchanger Sensor (Tcj)

Heat Exchanger Sensor (Tc)

Room Temperature Sensor (Ta)

Infrared Rays Signal Receiver

and Indication

Initializing Circuit

Clock Frequency

Oscillator Circuit

Power Supply

Circuit

Functions

•Cold draft preventing Function

•3-minute Delay at Restart for Compressor

•Fan Motor Starting Control

•Processing

(Temperature Processing)

•Timer

•Serial Signal Communication

•Clean Function

Louver

Motor

Louver Motor

Drive Control

Indoor Fan

Motor Control

Indoor

Fan Motor

Air purifier unit

Micro Switch

Converter (D.C circuit)

Noise Filter

From Outdoor Unit 220-240V ~ 50Hz

220V ~ 60Hz (-E model only)

Serial Signal Transmitter/Receiver

Serial Signal Communication

(Operation Command and Information)

Remote Controller Infrared Rays, 36.7kHz

REMOTE CONTROLLER

Operation (START/STOP)

Operation Mode Selection

AUTO, COOL, DRY, HEAT

Thermo. Setting

Fan Speed Selection

ON TIMER Setting

OFF TIMER Setting

Louver AUTO Swing

Louver Direction Setting

SLEEP MODE

Hi POWER

Air Purifier

OFF (1, 3, 5, 9H OFF timer)

8˚C (-ND model only)

– 25 –

For INDOOR UNIT	MICRO-COMPUTER BLOCK DIAGRAM

	220–240 V	~ 50Hz
	220 V ~ 60Hz (-E model only)
				MCC5009 (P.C.B)				OUTDOOR UNIT
			Indoor unit
		send/receive circuit
	Discharge				M.C.U		Current
	temp. sensor		•	PWM synthesis function			detect
			•	Input current release control
	Outdoor air		•	IGBT over-current detect control			Gate drive
	temp. sensor		•	Outdoor fan control			circuit
			•	High power factor correction control
–	Suction temp.		•	Inverter output frequency control			Current
	sensor		•	A/D converter function			detect
26			•	P.M.V. control
–	Heat exchanger		•	Discharge temp. control			Gate drive
			•	4-way valve control
	temp.sensor						circuit
			•	Signal communication to indoor unit
			High Power		Clock
			factor Correction		frequency
			circuit		4MHz
		Noise	Input current		Converter		Inverter	Outdoor
		Filter	sensor		(AC ®DC)		(DC ®AC)	Fan motor
				Relay	Driver circuit	Relay	Inverter	Compressor
				circuit	of P.M.V.	circuit	(DC ®AC)
							P.M.V. : Pulse Motor Valve
				Freeze	P.M.V.	4-way	M.C.U. : Micro Control Unit
				prevention
						valve
				heater

RAS	RAS	.2-8
16SAVP-RAS ND,-13SAVP-RAS ND,-10SAVP-	E-16SAVP-RAS E,-13SAVP-RAS E,-10SAVP-	Assembly) (Inverter Unit Outdoor
ND-

(-ND model only)

9. OPERATION DESCRIPTION

9-1. Outline of Air Conditioner Control

This air conditioner is a capacity-variable type air conditioner, which uses DC motor for the indoor fan motor and the outdoor fan motor. And the capacityproportional control compressor which can change the motor speed in the range from 11 to 118 rps is mounted. The DC motor drive circuit is mounted to the indoor unit. The compressor and the inverter to control fan motor are mounted to 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, and transfers the operation command to the outdoor unit controller.

The outdoor unit controller receives operation command from the indoor unit side, and controls the outdoor fan and the pulse motor valve. (P.M.V) Besides, detecting revolution position of the compressor motor, the outdoor unit controller controls speed of the compressor motor by controlling output voltage of the inverter and switching timing of the supply power (current transfer timing) so that motors drive according to the operation command.

And then, the outdoor unit controller transfers reversely the operating status information of the outdoor unit to control 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 and super heat control, etc.)

•Judgment of inlet indoor heat exchanger temperature by using heat exchanger sensor (TCJ sensor) (Super heat 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) to the outdoor unit and judgment/display of error

•Air purifier operation control

2.Role of outdoor unit controller

Receiving the operation command signal (Serial signal) from the indoor unit controller, the outdoor unit performs its role.

• Compressor operation		Operations followed to
•	control
	Operation control of	judgment of serial
	outdoor fan motor
		signal from indoor side.
•	P.M.V. control

•4-way valve control

•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 [Compressor 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.

– 27 –

9-2. Operation Description

9-2.	1.	Basic operation ...........................................................................................................	29
		1. Operation control ...................................................................................................	29
		2. Cooling/Heating operation .....................................................................................	30
		3. AUTO operation......................................................................................................	30
		4. DRY operation ........................................................................................................	30
	2.	Indoor fan motor control..............................................................................................	31
	3.	Outdoor fan motor control ...........................................................................................	33
	4.	Capacity control ..........................................................................................................	34
	5.	Current release control ...............................................................................................	34
	6.	Release protective control by temperature of indoor heat exchanger ........................	35
	7.	Quick heating control ..................................................................................................	36
	8.	Defrost control (Only in heating operation) .................................................................	36
	9.	Louver control .............................................................................................................	37
		1) Louver position .......................................................................................................	37
		2) Air direction adjustment .........................................................................................	37
		3) Swing .....................................................................................................................	37
	10.	SLEEP MODE operation ............................................................................................	38
	11.	Temporary operation ...................................................................................................	39
	12.	Air purifying control [Detection of abnormality] ...........................................................	39
	13.	Discharge temperature control ...................................................................................	40
	14.	Pulse motor valve (P.M.V.) control ..............................................................................	41
	15.	Clean operation ..........................................................................................................	42
	16.	Clean operation release ............................................................................................	43
	17.	Select switch on remote controller ..............................................................................	44
	18.	Set temp. correction ....................................................................................................	45
	19.	Outdoor Quiet control .................................................................................................	46
	20.	8°C HEAT operation (-ND model only) .......................................................................	47
	21.	Cord heater control (-ND model only).........................................................................	49

9-3. Auto Restart Function.............................................................................................		50
9-3-1.	How to Set the Auto Restart Function ....................................................................	50
9-3-2.	How to Cancel the Auto Restart Function ..............................................................	51
9-3-3.	Power Failure During Timer Operation ...................................................................	51

9-4.	FILTER Indicator ......................................................................................................		51
	9-4-1.	How to Turn Off FILTER Indicator ............................................................................	51
9-5.	Remote Controller and Its Fuctions.......................................................................		52
	9-5-1.	Parts Name of Remote Controller ...........................................................................	52
	9-5-2.	Name and Functions of Indications on Remote Controller ..................................	53
9-6.	Hi POWER Mode
	([Hi POWER] button on the remote controller is pushed)....................................		54

– 28 –

Item

Operation flow and applicable data, etc.

Description

1. Basic 1. Operation control

operation 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 motor valve.

Remote controller

Selection of operation conditions

ON/OFF

Control contents of remote controller

•ON/OFF (Air conditioner/Air purifier)

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

•Temperature setup

•Air direction

•Swing

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

•Sleep mode

•ON timer setup

•OFF timer setup

•High power

•8˚C heat operation (-ND model only)

Indoor unit

	Signal receiving			Indoor unit control
				• Command signal generating function of
	Indoor unit control			indoor unit operation		• Indoor fan motor
				• Calculation function (temperature calculation)
						• Louver motor
				• Activation compensation function of indoor fan
	Operation command
				• Cold draft preventive function
				• Timer function
	Serial signal send/receive			• Indoor heat exchanger release control

Outdoor unit

~

Serial signal send/receive

Outdoor unit control

Inverter

• Compressor speed control of inverter output

Outdoor unit control

• Waveform composite function

• Calculation function

• Compressor

(Temperature calculation)

• Outdoor fan motor

• AD conversion function

• 4-way valve

• Quick heating function

• Pulse motor valve

• Delay function of compressor reactivation

(P.M.V.)

• Current release function

• Freeze prevention

• GTr over-current preventive function

heater

• Defrost operation function

(-ND model only)

– 29 –

Item	Operation flow and applicable data, etc.	Description
1. Basic	2. Cooling/Heating operation
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 motor valve and 4-way valve according to the operation signal sent from the indoor unit.

Operation ON

Setup of remote controller

Indoor unit control

Indoor fan motor control / Louver control

Sending of operation command signal

Compressor revolution control / Outdoor fan motor control /

4-way valve control

In cooling operation: ON

Outdoor unit control

[ In heating operation: OFF ]

Pulse motor valve control

3. AUTO operation

1) Detects the room temperature (Ta) when

Selection of operation mode

the operation started.

2) Selects an operation mode from Ta in

As shown in the following figure, the operation starts by

selecting automatically the status of room temperature

the left figure.

(Ta) when starting AUTO operation.

3) Fan operation continues until an

*1. When reselecting the operation mode, the fan speed

operation mode is selected.

is controlled by the previous operation mode.

4) When AUTO operation has started

within 2 hours after heating operation

Ta

stopped and if the room temperature is

20°C or more, the fan operation is

Cooling operation

performed with ”Super Ultra LOW” mode

Ts + 1

for 3 minutes.

Then, select an operation mode.

Monitoring (Fan)

5) If the status of compressor-OFF

Ts – 1

continues for 15 minutes the room

Heating operation

temperature after selecting an operation

mode (COOL/HEAT), reselect an

operation mode.

4. DRY operation

1) Detects the room temperature (Ta) when

DRY operation is performed according to the difference

the DRY operation started.

between room temperature and the setup temperature

2) Starts operation under conditions in the

as shown below.

left figure according to the temperature

In DRY operation, fan speed is controlled in order to

difference between the room tempera-

ture and the setup temperature (Tsc).

prevent lowering of the room temperature and to avoid

Setup temperature (Tsc)

air flow from blowing directly to persons.

= Set temperature on remote controller

[˚C]

(Ts) + (0.0 to 1.0)

3) When the room temperature is lower

Ta

L– (W5)

1°C or less than the setup temperature,

turn off the compressor.

+1.0

(W5+W3) / 2

+0.5

SL (W3)

Tsc

Fan speed

– 30 –