Toshiba RAS-13JKCVP, RAS-13JACVP, RAS-10JKCVP, RAS-10JACVP SERVICE MANUAL

FILE NO. A03-001

Revised:5/July/2004

SPLIT TYPE

RAS-10JKCVP RAS-10JACVP RAS-13JKCVP RAS-13JACVP

PRINTED IN JAPAN, Jul.,2004 ToMo

CONTENTS

1.	SPECIFICATIONS .....................................................................................	3
2.	REFRIGERANT R410A .............................................................................	5
3.	CONSTRUCTION VIEWS ........................................................................	13
4.	WIRING DIAGRAM ..................................................................................	15
5.	SPECIFICATIONS OF ELECTRICAL PARTS .........................................	16
6.	REFRIGERANT CYCLE DIAGRAM ........................................................	17
7.	CONTROL BLOCK DIAGRAM ................................................................	18
8.	OPERATION DESCRIPTION ...................................................................	20
9.	INSTALLATION PROCEDURE ................................................................	36
10.	HOW TO DIAGNOSE THE TROUBLE ......................................................	47
11.	HOW TO REPLACE THE MAIN PARTS ...................................................	68
12.	EXPLODED VIEWS AND PARTS LIST ...................................................	81

– 2 –

1. SPECIFICATIONS

1-1. Specifications

RAS-10JKCVP/RAS-10JACVP, RAS-13JKCVP/RAS-13JACVP

Unit model	Indoor					RAS-10JKCVP	RAS-13JKCVP
	Outdoor					RAS-10JACVP	RAS-13JACVP
Cooling capacity					(kW)	2.5	3.5
Cooling capacity range					(kW)	0.6–3.4	0.6–4.2
Power supply						1Ph/50Hz/220–240 V, 1Ph/60Hz/220 V
Electric	Indoor		Operation mode			Cooling
characteristics			Running current		(A)	0.15	0.15
			Power consumption		(W)	30	30
			Power factor		(%)	87	87
	Outdoor		Operation mode			Cooling
			Running current		(A)	2.73/2.60/2.49	4.65/4.44/4.25
			Power consumption		(W)	540	920
			Power factor		(%)	90	90
			Starting current		(A)	2.88/2.75/2.64	4.80/4.59/4.40
COP				(Cooling)		4.39	3.68
Operating	Indoor		High	(Cooling)	(dB•A)	42	43
noise
			Medium	(Cooling)	(dB•A)	33	34
			Low	(Cooling)	(dB•A)	25	26
	Outdoor			(Cooling)	(dB•A)	45	48
Indoor unit	Unit model					RAS-10JKCVP	RAS-13JKCVP
	Dimension		Height		(mm)	250	250
			Width		(mm)	790	790
			Depth		(mm)	208	208
	Net weight				(kg)	10	10
	Fan motor output				(W)	30	30
	Air flow rate			(Cooling)	(m³/h)	550	560
Outdoor unit	Unit model					RAS-10JACVP	RAS-13JACVP
	Dimension		Height		(mm)	550	550
			Width		(mm)	780	780
			Depth		(mm)	270	270
	Net weight				(kg)	33	33
	Compressor		Motor output		(W)	750	750
			Type			Twin rotary type with DC-inverter variable speed control
			Model			DA91A1F-45F	DA91A1F-45F
	Fan motor output				(W)	43	43
	Air flow rate			(Cooling)	(m³/h)	2150	2410
Piping	Type					Flare connection	Flare connection
connection	Indoor unit		Liquid side			Ø6.35	Ø6.35
			Gas side			Ø9.52	Ø9.52
	Outdoor unit		Liquid side			Ø6.35	Ø6.35
			Gas side			Ø9.52	Ø9.52
	Maximum length				(m)	25	25
	Maximum chargeless length				(m)	15	15
	Maximum height difference				(m)	10	10
Refrigerant	Name of refrigerant					R410A	R410A
	Weight				(kg)	0.9	0.9
Wiring	Power supply					3 Wires : includes earth (Outdoor)	3 Wires : includes earth (Outdoor)
connection	Interconnection					4 Wires : includes earth	4 Wires : includes earth
Usable temperature range			Indoor	(Cooling)	(°C)	21–32	21–32
			Outdoor	(Cooling)	(°C)	10–46	10–46
Accessory	Indoor unit		Installation plate			1	1
			Wireless remote controller			1	1
			Batteries			2	2
			Remote controller holder			1	1
			Zeolite-plus filter			1	1
			Zeolite-3G filter			1	1
			Mounting screw			6 (Ø4 x 25L)	6 (Ø4 x 25L)
			Flat head wood screw			2 (Ø3.1 x 16L)	2 (Ø3.1 x 16L)
			Dust collecting unit			1	1
			Installation manual			1	1
			Owner’s manual			1	1
			Pattern			1	1

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

–3 –

1-2. Operation Characteristic Curve

<Cooling>

Current (A)

8

7

6

5

4

3

2

1

0

0

RAS-10JKCVP

RAS-13JKCVP

• Conditions

Indoor : DB 27˚C/WB 19˚C Outdoor : DB 35˚C

Air flow : High Pipe length : 5m Voltage : 230V

20

40

60

80

100

120

Compressor speed (rps)

1-3. Capacity Variation Ratio According to Temperature

<Cooling>

Capacity ratio (%)

110

100

90
80							RAS-10JKCVP
							RAS-13JKCVP
70
								• Conditions
60								Indoor : DB27˚C/WB19˚C									* Capacity ratio : 100% =
								Indoor air flow : High
								Pipe length : 5m									3.5 kW (RAS-13JKCVP)
50																	2.5 kW (RAS-10JKCVP)
32		33	34	35	36	37 38		39	40	41	42		43	44	45	46

Outdoor temp. (˚C)

1-4. Pipe Length-Capacity Characterisitic

<Cooling>

Capacity (%)

120

110

100

90

RAS-10JKCVP

RAS-13JKCVP

80

70

60

50

0

5

10

15

20

25

30

Pipe length (m)

*20g/m is added for 15m or more.

*Capacity ratio : 100% = 3.5 kW (RAS-13JKCVP)

2.5 kW (RAS-10JKCVP)

– 4 –

2. 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.

2-1. Safety During Installation/Servicing

As R410A’s pressure is about 1.6 times higher than that of R22, improper installation/servicing may cause a serious trouble. By using tools and 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.

2-2. Refrigerant Piping Installation

2-2-1. Piping Materials and Joints Used

For the refrigerant piping installation, copper pipes and joints are mainly used. Copper pipes and joints suitable for the refrigerant must be chosen and installed. Furthermore, it is necessary to use clean copper pipes and joints whose interior surfaces are less affected by contaminants.

(1)Copper Pipes

It is necessary to use seamless copper pipes which are made of either copper or copper alloy and it is desirable that the amount of residual oil is less than 40 mg/10 m. Do not use copper pipes having a collapsed, deformed or 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 2-2-1. Never use copper pipes thinner than 0.8 mm even when it is available on the market.

– 5 –

Table 2-2-1 Thicknesses of annealed copper pipes

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

(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 2-2-3 to 2- 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 2-2-2.

Table 2-2-2 Minimum thicknesses of socket joints

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

2-2-2. Processing of Piping Materials

When performing the refrigerant piping installation, care should be taken to ensure that water or dust does not enter the pipe interior, that no other oil other than lubricating oils used in the installed air conditioner is used, and that refrigerant does not leak. When using lubricating oils in the piping processing, use such lubricating oils whose water content has been removed. When stored, be sure to seal the container with an airtight cap or any other cover.

(1)Flare Processing Procedures and Precautions

a)Cutting the Pipe

By means of a pipe cutter, slowly cut the pipe so that it is not deformed.

b)Removing Burrs and Chips

If the flared section has chips or burrs, refrigerant leakage may occur. Carefully remove all burrs and clean the cut surface before installation.

c)Insertion of Flare Nut

– 6 –

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. 2-2-1 Flare processing dimensions

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

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

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

Nominal

Outer

Thickness

Dimension (mm)

Flare nut

diameter

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

– 7 –

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

	Nominal	Outer	Thickness		Dimension (mm)			Flare nut
		diameter						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

		˚
˚to	46
45

B A

C D

43˚ to 45˚

Fig. 2-2-2 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.

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 2-2-7 shows reference values.

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.

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 2-2-7 Tightening torque of flare for R410A [Reference values]

	Nominal	Outer	Tightening torque	Tightening torque of torque
		diameter		wrenches available on the market
	diameter		N•m (kgf•cm)
		(mm)		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)

– 8 –

2-3. Tools

2-3-1. Required Tools

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

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

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

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

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

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

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

Tools whose specifications are changed for R410A and their interchangeability

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

(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	(5)	Pipe bender	(10)	Hexagon wrench
	Use vacuum pump by	(6)	Level vial		(Opposite side 4mm)
	attaching vacuum pump adapter.	(7)	Screwdriver (+, –)	(11)	Tape measure
(2)	Torque wrench (For Ø6.35, Ø9.52)
		(8)	Spanner or Monkey wrench	(12)	Metal saw
(3)	Pipe cutter	(9)	Hole core drill (Ø65)
(4)	Reamer

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

(1)	Clamp meter	(3)	Insulation resistance tester
(2)	Thermometer	(4)	Electroscope

– 9 –

2-4. 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.

(INDOOR unit)

(Liquid side)

(OUTDOOR unit)

Opened

(Gas side)

Refrigerant cylinder (With siphon pipe)

Check valve

Closed

Open/Close valve for charging

Service port

Electronic balance for refrigerant charging

Fig. 2-4-1 Configuration of refrigerant charging

– 10 –

(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. 2-4-2

2-5. Brazing of Pipes

2-5-1. 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.

2-5-2. 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.

– 11 –

(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	Used brazing	Used
material	filler	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.

2-5-3. 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. 2-5-1 Prevention of oxidation during brazing

– 12 –

3. CONSTRUCTION VIEWS

3-1. Indoor Unit

RAS-10JKCVP, RAS-13JKCVP

Indoor air suction port	Air filter	Indoor heat exchanger
	790	208

Front panel

60
7	48

Knockout system

Suction grille

Plasma air purifying unit

48

54.5 60

Air ionizer

48

60 54.5

	60
48	7

Knockout system

790

Installation plate hanging section

Drain hose

290

(Outside length: 0.54m)

Installation plate hanging section

Auxiliary hose (Outside length: 0.45m) Flare Ø6.35

Auxiliary hose (Outside length: 0.36m) Flare Ø9.52

			91			608
						450
				10	10	288
					Hanging	more
	46	19	7		section	67 or
250	164		(Minimum
		distance to wall)
			140 or more
	38		2	Lower part
				hanging	Center line
				section	of main unit
					Center line of
					installation plate
			91		304
						790

10

(Minimum distance to ceiling)

Outline of installation plate

304

91

Stud bolt hole For Ø6

10

Stud bolt hole For Ø8 to Ø10

(Minimum distance to wall)

140 or more

40

91

– 13 –

3-2. Outdoor Unit

RAS-10JACVP, RAS-13JACVP

A leg part	600		90	Ø11 x 17U-shape hole
	Ø25 drain hole	50
				(For Ø8-Ø10 anchor bolt)
	115
pitch)
310 (Anchorbolt long hole 296 (ø 6 hole pitch) 270	76			8-Ø6 hole
				(For fixing outdoor unit)
B leg part	16			Ø11 x 17 long hole
				(For Ø8-Ø10 anchor bolt)

Ø4.5 embossing (Ø4STS used)

(For sunshade roof attaching)

49,5	147	21	Fan guard
			115.5

Hanger

540

548

8	780

Connecting pipe port

(Pipe dia.Ø6.35)

	Connecting pipe port
	(Pipe dia.Ø9.52)			Z	view
	Mounting dimensions of anchor bolt
			600
4 x Ø11 x 17U-shape hole
(For Ø8-Ø10 anchor bolt)		more			A
	or50		D	Intake
	Intake				250 or more
310	C 100 or			Outside line	(Minimum distance
	more
				of product	from wall)
	200 or more
			Outlet	4 x Ø11 × 17 long hole
			B	(For Ø8-Ø10 anchor bolt)

Valve cover	157	59

21

Z

	54
	Charging
	port
61	332
	Earth terminal

Detailed A leg part
				600
			50
			36	R15
			11
				Outside line
				of product
310	296		5
		.
		R5		2-Ø6 hole
				2-Ø6 hole
310	296		11

Outside line of product

36	R15
50

600	R5
	5
	.

Detailed B leg part

– 14 –

4. WIRING DIAGRAM

4-1. Outdoor Unit

RAS-10JACVP, RAS-13JACVP

	Q200
	IGBT MODULE
BLU
	BZ BY BX EW BW EV BV EU	BU
P17	P18

P23	P22	P21
BLK	WHI	RED	P.C. BOARD
3	2	1	(MCC-813)
3	2	1

		DB01 CONVERTER	REACTOR				THERMOSTAT
		MODULE					FOR
BRW		ORN		2	1		COMPRESSOR
						1	1 CN500
				2	1
		A E G				2	2
P20	P19	P10	P09	P08	P07		CN601		TD
							1	1
							2	2
							3	3

	ELECTRONIC	POWER	CT
	STARTER	RELAY

CN602 TO

1 1

2 2

C12

	C13
CM	C14

COMPRESSOR

FAN MOTOR CN300

RED 1 1 FM WHI 2 2 BLK 3 3

YEL 1 1 2

3

PNK 4 4 GRY 5 5

CN301

Q300
	F04 FUSE					P06
	T3.15A
						SURGE
						ABSORBER
						VARISTOR
						F01
						FUSE
						T25A
P14	P13	P12	P11	P02	P03	P01

CN603		TS
1	1
2	2
3	3

BLK

11 WHI

22 YEL

33 ORN

44 BLU PMV

55 RED

6 6	GRY PULSE
	MODULATING

CN703	VALVE

WHI ORN BLK

IGBT : Insulated Gate Bipolar Transistor

PUR YEL

1 2 3 L N

Color

4-2. Indoor Unit

Identification

RED

: RED

RAS-10JKCVP, RAS-13JKCVP

POWER

WHI

: WHITE

SUPPLY

BLK

BLK

: BLACK

220-240V/50Hz

BLK

1

1

voltage-High supplyPower

220V/60Hz

BLU

: BLUE

1

2

3

4

purifierAir Electrode

BLOCK

YEL

: YELLOW

5

5

2

2

BRW

: BROWN

3

3

ORN

: ORANGE

INDOOR

PUR

: PURPUL

1

2

3

4

4

4

2 3

TERMINAL 1

RED

BRW

BRW

BRW

6

6

Heat

GRY

: GRAY

exchanger

PNK

: PINK

1

2

3

4

Ion electrode

BLK

WHI RED

GRN & YEL

GRN& GREEN&

YEL

: YELLOW

1

2

3

4

3

1

				CN01		CN33			CN22	CN23	CN21
						(WHI)
			BLK	(BLU)									1	1	BRW
				1	1	FUSE					CN34						Micro SW
			BLK										2	2
				2	2										BLU
						F01
HEAT EXCHANGER						AC 250V							(RED)
SENSOR (TC)				CN03		T3.15A							CN10			FAN MOTOR
				(WHI)									(WHI)
			BLK												RED
				1	1								1	1
			BLK	2	2										BLK
THERMO SENSOR													3	3
															WHI		DC MOTOR
	(TA)
													4	4	YEL
	CN100			CN13									5	5
AssemblyUnitWireless	(WHI)		BLU	(WHI)									6	6	BLU
	1	1		9	9						SUPPLYPOWER	CIRCUIT
	2	2	BLUBLU 8 8
									LINE		DC5V		CN07
	3	3		7	7				FILTER	DB01			(WHI)
	4	4	BLUBLU 6 6												WHI
											DC12V		1	1		1	1
	5	5	BLU	5	5								2	2	YEL	2	2
	6	6	BLU	4	4				TNR				3	3	YEL	3	3
	7	7	BLU	3	3	MAIN P.C. BOARD							4	4	YEL	4	4
	8	8	WHI	2	2								5	5	YEL	5	5
	9	9		1	1	(MCC-891)	CN08
MCC-900															LOUVER MOTOR
						1	2	3	4
									– 15 –

5. SPECIFICATIONS OF ELECTRICAL PARTS

5-1. Indoor Unit

RAS-10JKCVP, RAS-13JKCVP

	No.	Parts name	Type		Specifications
	1	Fan motor (for indoor)	MF-280-30-1	DC280–340V, 30W
	2	Room temp. sensor	( – )	10kΩ	at 25°C
		(TA-sensor)
	3	Heat exchanger temp. sensor	( – )	10kΩ	at 25°C
		(TC-sensor)
	4	Louver motor	MP24GA	Output (Rated) 1W, 16poles, 1phase DC12V

5-2. Outdoor Unit

RAS-10JACVP, RAS-13JACVP

	No.	Parts name	Model name		Rating
	1	Reactor	CH-57	L=10mH, 16A
	2	Outside fan motor	ICF-140-43-1	DC140V, 43W
	3	Suction temp. sensor	(Inverter attached)	10kΩ	(25°C)
		(TS sensor)
	4	Discharge temp. sensor	(Inverter attached)	62kΩ	(20°C)
		(TD sensor)
	5	Outside air temp. sensor	(Inverter attached)	10kΩ	(25°C)
		(TO sensor)
	6	Terminal block (6P)	——	20A, AC250V
	7	Compressor	DA91A1F-45F	3-phases 4-poles 750W
	8	Compressor thermo.	US-622KXTMQO-SS	OFF: 125 ± 4°C, ON: 90 ± 5° C
	9	Coil for PMV	C12A	DC12V

– 16 –

6. REFRIGERANT CYCLE DIAGRAM

6-1. Refrigerant Cycle Diagram

RAS-10JKCVP/RAS-10JACVP RAS-13JKCVP/RAS-13JACVP

P Pressure measurement

Gauge attaching port

Vacuum pump connecting port

Deoxidized copper pipe

Outer dia. : 9.52mm

Thickness : 0.8mm

T1 Temp. measurement

INDOOR UNIT

	Indoor heat
	exchanger	heightAllowable	10m:difference	lengthpipeAllowable
	Cross flow fan
	Deoxidized copper pipe
	Outer dia. : 6.35mm
	Thickness : 0.8mm
	Sectional shape
	of heat insulator

Max. : 25m Chargeless : 15m Charge : 20g/m (16 to 25m)

TS			Strainer
	Compressor
	DA91A1F-45F
TD
	Muffler		Pulse modulating
		TO	valve at liquid side
			(SEV16RC3)
	Outdoor heat	Split capillary
	exchanger
		Ø1.5 x 200
Temp. measurement	T2	Ø1.5 x 200
	Propeller fan			Refrigerant amount : 0.9kg
	OUTDOOR UNIT		NOTE :	Gas leak check position
				Refrigerant flow (Cooling)

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)

6-2. Operation Data

<Cooling>

	Temperature		Model	Standard	Heat exchanger				Compressor
	condition (°C)				pipe temp.		Indoor fan	Outdoor fan
			name	pressure			mode	mode	revolution
	Indoor	Outdoor	RAS-	P (MPa)	T1 (°C)	T2 (°C)			(rps)
	27/19	35/–	10JKCVP	0.9 to 1.1	12 to 14	43 to 45	High	High	45
			13JKCVP	0.8 to 1.0	10 to 12	47 to 48	High	High	70

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

–17 –

7. CONTROL BLOCK DIAGRAM

7-1. Indoor Unit

RAS-10JKCVP, RAS-13JKCVP

M.C.U	Indoor Unit Control Unit

		Louver
Heat Exchanger Sensor(Tc)	Functions	Motor
Room Temperature Sensor(Ta)	• 3-minute Delay at Restart for Compressor	Louver Motor
Infrared Rays Signal Receiver	• Fan Motor Starting Control	Drive Control
and Indication		Indoor Fan
	• Processing	Motor Control
Initializing Circuit	(Temperature Processing)
	• Timer	Indoor
Clock Frequency		Fan Motor
Oscillator Circuit
	• Serial Signal Communication
Power Supply		Air purifier
		unit
Circuit
Converter		Micro Switch
(D.C circuit)

		Noise Filter		Serial Signal Transmitter/Receiver
	From Outdoor Unit
				Serial Signal Communication
		220-240V/50Hz
		220V/60Hz		(Operation Command and Information)

Remote Controller

Infrared Rays, 36.7kHz

REMOTE CONTROLLER

Operation (START/STOP)

Operation Mode Selection

AUTO, COOL, DRY, FAN only

Thermo. Setting

Fan Speed Selection

ON TIMER Setting

OFF TIMER Setting

Louver AUTO Swing

Louver Direction Setting

ECO

Hi-POWER

Air Purifier

SLEEP

– 18 –

For INDOOR UNIT

MICRO-COMPUTER BLOCK DIAGRAM

RAS

.27-

-

220–240 V/50Hz

10JACVP,

Outdoor

220 V/60Hz

MCC813 (P.C.B)

OUTDOOR UNIT

Unit

RAS-

Indoor unit

Rotor position

13JACVP

(Inverter

send/receive

M.C.U

detect circuit

circuit

•

PWM synthesis function

Rotor position

•

Input current release control

detect circuit

Assembly)

Discharge

•

IGBT over-current detect control

Gate drive

temp. sensor

•

Outdoor fan control

circuit

Outdoor air

•

High power factor correction control

Gate drive

•

Inverter output frequency control

temp. sensor

circuit

–

•

A/D converter function

Suction temp.

•

P.M.V. control

Over current

19

sensor

•

Discharge temp. control

detect circuit

–

•

Signal communication to indoor unit

Over current

detect circuit

High Power

Clock

factor Correction

frequency

circuit

16MHz

Noise

Input current

Converter

Over current

Inverter

Outdoor

Filter

sensor

(AC

DC)

sensor

(DC

AC)

Fan motor

Driver circuit

Over current

Inverter

Compressor

of P.M.V.

sensor

(DC

AC)

P.M.V : Pulse Modulating Valve

M.C.U : Micro Control Unit

P.M.V.

8. OPERATION DESCRIPTION

	8-1. Outline of Air Conditioner Control				•	Detection of inverter input current and current
	This air conditioner is a capacity-variable type air					release operation
					• Over-current detection and prevention operation
	conditioner, which uses DC motor for the indoor fan
						to IGBT module (Compressor stop function)
	motor and the outdoor fan motor. And the capacity-
					•	Compressor and outdoor fan stop function
	proportional control compressor which can change
	the motor speed in the range from 13 to 88 rps is					when serial signal is off (when the serial signal
	mounted. The DC motor drive circuit is mounted to					does not reach the board assembly of outdoor
	the indoor unit. The compressor and the inverter to					control by trouble of the signal system)
	control fan motor are mounted to the outdoor unit.				•	Transferring of operation information (Serial
	The entire air conditioner is mainly controlled by the					signal) from outdoor unit controller to indoor
	indoor unit controller.					unit controller
	The indoor unit controller drives the indoor fan motor				•	Detection of outdoor temperature and operation
	based upon command sent from the remote control-					revolution control
	ler, and transfers the operation command to the				(3) Contents of operation command signal (Serial
	outdoor unit controller.
					signal) from indoor unit controller to outdoor unit
	The outdoor unit controller receives operation
					controller
	command from the indoor unit side, and controls the
					The following three types of signals are sent from
	outdoor fan and the pulse modulating valve. (P.M.V)
	Besides, detecting revolution position of the com-				the indoor unit controller.
	pressor motor, the outdoor unit controller controls				•	Operation mode set on the remote control
	speed of the compressor motor by controlling output				•	Compressor revolution command signal defined
	voltage of the inverter and switching timing of the
						by indoor temperature and set temperature
	supply power (current transfer timing) so that motors
						(Correction along with variation of room tem-
	drive according to the operation command.
						perature and correction of indoor heat ex-
	And then, the outdoor unit controller transfers
						changer temperature are added.)
	reversely the operating status information of the
					•	Temperature of indoor heat exchanger
	outdoor unit to control the indoor unit controller.
					•	For these signals ([Operation mode] and
	As the compressor adopts four-pole
						[Compressor revolution] indoor heat exchanger
	brushless DC motor, the frequency of the					temperature), the outdoor unit controller
	supply power from inverter to compressor is					monitors the input current to the inverter, and
	two-times cycles of the actual number of					performs the followed operation within the
	revolution.					range that current does not exceed the allow-
	(1) Role of indoor unit controller					able value.
					(4) Contents of operation command signal (Serial
	The indoor unit controller judges the operation
					signal) from outdoor unit controller to indoor unit
	commands from the remote controller and
					controller
	assumes the following functions.
					The following signals are sent from the outdoor
	•	Judgment of suction air temperature of the
					unit controller.
		indoor heat exchanger by using the indoor
					•	The current operation mode
		temp. sensor. (TA sensor)
	•	Judgment of the indoor heat exchanger tem-			•	The current compressor revolution
		perature by using heat exchanger sensor (TC			•	Outdoor temperature
		sensor) (Prevent-freezing control, etc.)
					•	Existence of protective circuit operation
	•	Louver motor control
						For transferring of these signals, the indoor unit
	•	Indoor fan motor operation control
						controller monitors the contents of signals, and
	•	LED (Light Emitting Diode) display control
						judges existence of trouble occurrence.
	•	Transferring of operation command signal
						Contents of judgment are described below.
		(Serial signal) to the outdoor unit
						•	Whether distinction of the current operation
	•	Reception of information of operation status
							status meets to the operation command signal
		(Serial signal including outside temp. data) to
						•	Whether protective circuit operates
		the outdoor unit and judgment/display of error
	•	Air purifier operation control					When no signal is received from the outdoor
	(2) Role of outdoor unit controller						unit controller, it is assumed as a trouble.
	Receiving the operation command signal (Serial
	signal) from the indoor unit controller, the outdoor
	unit performs its role.
	•	Compressor operation control		Operations followed to
	•	Operation control of outdoor
				judgment of serial signal
		fan motor		from indoor side.
	•	P.M.V. control

– 20 –

8-2. Operation Description

Item	Operation flow and applicable data, etc.	Description
1. Basic	1) Operation control	1) The operation conditions are
operation	Receiving the user’s operation condition setup, the opera-	selected by the remote controller as
		shown in the left.
	tion statuses of indoor/outdoor units are controlled.

	Remote controller	2)	A signal is sent by ON button of the
			remote controller.
Selection	Control contents of remote controller	3)	The signal is received by a sensor of
			the indoor unit and processed by the
of operation	• ON/OFF (Air conditioner/Air purifier)		indoor controllers as shown in the
conditions	• Operation select		left.
	(AUTO/COOL/DRY/FAN ONLY)	4)	The indoor controller controls the
ON/OFF	• Temperature setup
	• Air direction		indoor fan motor and louver motor.
	• Swing	5)	The indoor controller sends the
	• Air volume select
			operation command to the outdoor
	(AUTO/LOW/LOW+/MED/MED+/HIGH)
			controller, and sends/receives the
	• ECO
	• ON timer setup		control status with a serial signal.
	• OFF timer setup	6)	The outdoor controller controls the
	• High power		operation as shown in the left, and
			also controls the compressor,
	Indoor unit		outdoor fan motor, pulse modulating
			valve.

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

Serial signal				Outdoor unit control				• Compressor
					Inverter
send/receive				• Frequency control of inverter output				• Outdoor fan motor
				• Waveform composite function				• Pulse modulating valve (PMV)
Outdoor unit				• Calculation function
control				(Temperature calculation)

•AD conversion function

•Delay function of compressor reactivation

•Current release function

•GTr over-current preventive function

	2) Cooling operation						1) Receiving the operation ON signal of
		The operations are performed in the following parts by					the remote controller, the cooling
							operation signal starts being
		controls according to cooling conditions.
							transferred form the indoor controller
							to the outdoor unit.
		Operation ON			Setup of remote controller
							2) At the indoor unit side, the indoor fan
							is operated according to the con-
							tents of “2. Indoor fan motor control”
		Indoor unit			Indoor fan motor control
							and the louver according to the
		control			Louver control
							contents of “9. Louver control”,
							respectively.
							3) The outdoor unit controls the
		Sending of
		operation					outdoor fan motor, compressor,
		command signal					pulse modulating valve according to
							the operation signal sent from the
							indoor unit.
					Compressor revolution control
		Outdoor unit
					Outdoor fan motor control
		control
					Pulse modulating valve control

– 21 –

Item	Operation flow and applicable data, etc.		Description
1. Basic operation	3) AUTO operation	1)	Detects the room temperature
	Selection of operation mode		(Ta) when the operation started.
		2)	Selects an operation mode from
	As shown in the following figure, the operation starts by
			Ta in the left figure.
	selecting automatically the status of room temperature
	(Ta) when starting AUTO operation.	3)	Fan operation continues until an
			operation mode is selected.
		4)	If the status of compressor-OFF
			continues for 15 minutes the
			room temperature after selecting
			an operation mode, reselect an
			operation mode.

Ta

		Cooling operation
	Ts + 1
		Monitoring (Fan)
	Ts
	*1. When reselecting the operation mode, the fan speed is
	controlled by the previous operation mode.
	4) DRY operation				1) Detects the room temperature
	DRY operation is performed according to the difference				(Ta) when the DRY operation
					started.
	between room temperature and the setup temperature as
	shown below.				2) Starts operation under conditions
	In DRY operation, fan speed is controlled in order to				in the left figure according to the
					temperature difference between
	prevent lowering of the room temperature and to avoid air
					the room temperature and the
	flow from blowing directly to persons.
					setup temperature (Tsc).
					Setup temperature (Tsc) =
					Set temperature on remote
					controller (Ts) + (0.0 to 1.0)
	[˚C]				3) When the room temperature is
	Ta				lower 1°C or less than the setup
					temperature, turn off the com-
			L– (W5)		pressor.
	+1.0		(W5+W3) / 2
	+0.5
			SL (W3)
	Tsc
			Fan speed

– 22 –

Item		Operation flow and applicable data, etc.			Description
2. Indoor fan	<In cooling operation>
motor control	(This operation controls the fan speed at indoor unit side.)				* Symbols
	The indoor fan (cross flow fan) is operated by the phase-			UH	: Ultra High
				H	: High
	control induction motor. The fan rotates in 5 stages in
				M+	: Medium+
	MANUAL mode, and in 5 stages in AUTO mode, respec-
				M	: Medium
	tively. (Table 1)
				L+	: Low+
				L	: Low
				L-	: Low–
				UL	: Ultra Low
		COOL ON		SUL	: Super Ultra Low

			* The fan speed broadly varies due
Fan speed setup	MANUAL		to position of the louver, etc.
			The described value indicates one
		(Fig. 1)	under condition of inclining
			downward blowing.
AUTO	Indication	Fan speed	1) When setting the fan speed to L,
	L	W6
			L+, M, M+ or H on the remote
	L+	(L + M) / 2	controller, the operation is
	M	W9	performed with the constant
			speed shown in Fig. 1.
	M+	(M + H) / 2	2) When setting the fan speed to
	H	WC	AUTO on the remote controller,
			revolution of the fan motor is
		(Fig. 2)	controlled to the fan speed level
			shown in Fig. 2 and Table 1
			according to the setup tempera-
	Fan speed AUTO		ture, room temperature, and heat
Ta			exchanger temperature.
[˚C]

+2.5		M+(WB)
+2.0	a	*3	*3 : Fan speed =
			(M + –L) x 3/4 + L
+1.5	b	*4	*4 : Fan speed =
			(M + –L) x 2/4 + L
+1.0	c	*5	*5 : Fan speed =
			(M + –L) x 1/4 + L
+0.5	d	L(W6)	(Linear approximation
			from M+ and L)
	e
Tsc

			(Table 1)		Indoor fan air flow rate
	Fan speed				RAS-10JKCVP		RAS-13JKCVP
		COOL	DRY
					Fan speed	Air flow rate	Fan speed	Air flow rate
	level
					(rpm)	(m3/h)	(rpm)	(m3/h)
	WF				1630	684	1650	694
	WE				1480	609	1530	634
	WD	UH			1400	569	1440	589
	WC	H			1350	544	1390	564
	WB	M+			1200	468	1240	488
	WA				1110	423	1150	443
	W9	M			980	358	1010	373
	W8				830	283	860	298
	W7	L+	L+		810	273	810	273
	W6	L	L		810	273	810	273
	W5	L–	L–		780	257	780	257
	W4	UL	UL		700	217	700	217
	W3	SUL	SUL		550	142	550	142
	W2				400	67	400	67
	W1				400	67	400	67

– 23 –

Item		Operation flow and applicable data, etc.			Description
3. Outdoor fan	The blowing air volume at the outdoor unit side is controlled.				1) The operation command sent
motor control	Receiving the operation command from the controller of				from the remote controller is
					processed by the indoor unit
	indoor unit, the controller of outdoor unit controls fan speed.
					controller and transferred to the
	* For the fan motor, a DC motor with non-stage variable
					controller of the outdoor unit.
		speed system is used. However, it is limited to 8 stages for
					2) When strong wind blows at
		reasons of controlling.
					outdoor side, the operation of air
					conditioner continues with the
		Air conditioner ON			fan motor stopped.
		(Remote controller)			3) Whether the fan is locked or not
					is detected, and the operation of
					air conditioner stops and an
		Indoor unit controller
					alarm is displayed if the fan is
					locked.

1) Outdoor unit				4) According to each operation
				mode, by the conditions of
operation command				outdoor temperature(To) and
(Outdoor fan control)
				compressor revolution, the speed
				of the outdoor fan shown in the
2) Fan speed	400	YES	OFF status of	table is selected.
when the motor stopped.			fan motor continues.
NO
Fan motor ON
3) Fan lock		YES	Air conditioner	Alarm
			OFF	display
NO

4) Motor operates as shown in the table below.

In cooling operation

	Compressor speed (rps)			~13.8	~34.7	35.4~ MAX
		To	38˚C	f 7	f 4	f 3
	To	To < 38˚C		f 7	f 5	f 4
		To < 15˚C		f 8	f 8	f 8
	During	To	38˚C	f 7	f 5	f 4
		To < 38˚C		f 7	f 7	f 5
	ECO mode
		To < 15˚C		f 8	f 8	f 8
	When To is abnormal			f 5	f 5	f 4

Outdoor fan speed (rpm)

Tap	RAS-10JACVP	RAS-13JACVP
f 1	—	—
f 2	—	—
f 3	750	840
f 4	750	840
f 5	700	700
f 6	650	650
f 7	390	390
f 8	390	390

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Item		Operation flow and applicable data, etc.							Description
4. Capacity	The cooling capacity depending on the load is adjusted.								1) The difference between set
control	According to difference between the setup value of tempera-								temperature on remote controller
									(Ts) and room temperature (Ta)
	ture and the room temperature, the capacity is adjusted by
									is calculated.
	the compressor revolution.
									2) According to the temperature
									difference, the correction value of
		Remote controller				Indoor unit			Hz signal which determines the
									compressor speed is set up.
		Set temp. (Ts)				Room temp. (Ta)
									3) The rotating position and speed
									of the motor are detected by the
				Ts	–Ta				electromotive force occurred on
									the motor winding with operation
									of the compressor.

	Correction of Hz signal			4) According to the difference
				resulted from comparison of the
				correction value of Hz signal with
	Detection of electromotive force			the present operation Hz, the
	of compressor motor winding			inverter output and the commuta-
				tion timing are varied.
	Detection of motor speed			5) Change the compressor motor
				speed by outputting power to the
		and rotor position
				compressor.
	Correction value of Hz			* The contents of control opera-
				tion are same in cooling
	signal		Operating Hz
				operation and heating opera-
	Inverter output change			tion
	Commutation timing change
	Change of compressor speed
5. Current release	This function prevents troubles on the electronic parts of the			1) The input current of the outdoor
control	compressor driving inverter.			unit is detected in the inverter
	This function also controls drive circuit of the compressor			section of the outdoor unit.
	speed so that electric power of the compressor drive circuit			2) According to the detected
	does not exceed the specified value.			outdoor temperature, the
				specified value of the current is
				selected.
	Outdoor unit inverter main		Outdoor temp. To	3) Whether the current value
	circuit control current			exceeds the specified value or
			Setup of current release point	not is judged.
				4) If the current value exceeds the
				specified value, this function
	Operating current	High		reduces the compressor speed
				and controls speed up to the
	Setup value		Reduce compressor speed	closest one commanded from the
	Low			indoor unit within the range
			Current decrease	which does not exceed the
				specified value.
	Capacity control continues.

	Outdoor temp.		Cooling current release value
	45˚C		5.62A
	40˚C	44˚C
	16˚C	39˚C
	11˚C	15.5˚C	9.00A
		10.5˚C

– 25 –

	Item						Operation flow and applicable data, etc.
	6. Release	<In cooling/dry operation>
	protective	(Prevent-freezing control for indoor heat exchanger)
	control by	In cooling/dry operation, the sensor of indoor heat exchanger detects
	temperature
		evaporation temperature and controls the compressor speed so that
	of indoor heat
		temperature of the heat exchanger does not exceed the specified
	exchanger
		value.
		temperature	7˚C						When the value is
							Usual cooling capacity control
								R
		exchanger						P	in Q zone, the
								Q
									compressor speed
			6˚C
									is kept.
		heat	5˚C
		Indoor					Reduction of compressor speed
	7. Louver control	This function controls the air direction of the indoor unit.
	1) Louver	• The position is automatically controlled according to the operation
	position	mode (COOL).

•The set louver position is stored in memory by the microcomputer, and the louver returns to the stored position when the next operation is performed. (Cooling memory position)

The angle of the louver is indicated as the horizontal angle is 0°.

When the louver closes fully, it directs approx. 49° upward.

1) Louver position in cooling operation

Horizontal

Louver (0˚) angle

	Cooling operation/	Powerful
		Room temp. (Ta) <	Room temp. (Ta)
	AUTO (COOL)/Dry
		Set temp. (Tsc) + 3.5	Set temp. (Tsc) + 3.5
	Initial setting of	Initial setting of	“Inclined blowing”
	“Cooling storage position”	“Cooling storage position”	Louver :
	Louver :	Louver :	Directs downward (14˚)
	Directs downward (9˚)	Directs downward (9˚)

	2) Air direction	Air direction
	adjustment

Horizontal	Inclined	Blowing	Inclined	Horizontal
blowing	blowing	downward	blowing	blowing

3) Swing	• Swing operation is performed in width 35° with the stop position as
	the center.

•If the stop position exceeds either upper or lower limit position, swing operation is performed in width 35° from the limit which the

stop position exceeded.

Description

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

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

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

Cooling/AUTO

(COOL)/DRY operation

Cooling NO Powerful memory operation position

YES YES Room temp.

Set temp. +3.5

NO

Cooling

Inclined

memory

blowing

position

YES Room temp.

NO

Set temp. +3.5

•The louver position can be arbitrarily set up by pushing [FIX] button.

•Swing

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

– 26 –