Toshiba RAS-B16GKVP-E, RAS-16GAVP-E, RAS-10GAVP-E, RAS-B13GKVP-E, RAS-13GAVP-E User Manual

FILE NO. A05-008

SERVICE MANUAL

Indoor Unit

<High Wall, Heat Pump Type>

RAS-B10GKVP-E RAS-B13GKVP-E RAS-B16GKVP-E

SPLIT TYPE

Outdoor Unit

<Heat Pump Type>

RAS-10GAVP-E RAS-13GAVP-E RAS-16GAVP-E

R410A

PRINTED IN JAPAN, Nov.,2005 ToMo

CONTENTS

1.	SAFETY PRECAUTIONS ..........................................................................	3
2.	SPECIFICATIONS .....................................................................................	5
3.	REFRIGERANT R410A .............................................................................	7
4.	CONSTRUCTION VIEWS ........................................................................	15
5.	WIRING DIAGRAM ..................................................................................	17
6.	SPECIFICATIONS OF ELECTRICAL PARTS .........................................	18
7.	REFRIGERANT CYCLE DIAGRAM ........................................................	19
8.	CONTROL BLOCK DIAGRAM ................................................................	22
9.	OPERATION DESCRIPTION ...................................................................	24
10.	INSTALLATION PROCEDURE ................................................................	47
11.	HOW TO DIAGNOSE THE TROUBLE ......................................................	60
12.	HOW TO REPLACE THE MAIN PARTS ...................................................	82
13. EXPLODED VIEWS AND PARTS LIST .................................................		101
Cord Heater Installation Work ........................................................		Appendix-1

– 2 –

1. SAFETY PRECAUTIONS

For general public use

Power supply cord of outdoor unit shall be more than 1.5 mm 2 (H07RN-F or 245IEC66) 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

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

The installation fuse (25A D type ) must be used for the power supply line of this air conditioner.

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-B10GKVP-E/RAS-B13GKVP-E/RAS-B16GKVP-E, RAS-10GAVP-E/RAS-13GAVP-E/RAS-16GAVP-E

Unit model

Indoor

RAS-B10GKVP-E

RAS-B13GKVP-E

RAS-B16GKVP-E

Outdoor

RAS-10GAVP-E

RAS-13GAVP-E

RAS-16GAVP-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)

0.6–5.8

0.6–6.6

0.8–7.8

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)

2.48/2.37/2.26

3.25/3.10/2.96

4.25/4.06/3.89

4.52/4.31/4.13

6.45/6.17/5.90

7.07/6.76/6.47

Outdoor

Power consumption

(W)

520

680

890

945

1350

1480

Power factor

(%)

95

95

95

95

95

95

Starting current

(A)

3.40/3.25/3.11

4.67/4.46/4.28

7.22/6.91/6.62

COP

(Cooling/Heating)

4.55/4.51

3.80/4.31

3.26/3.64

High

(Cooling/Heating)

(dB•A)

42/43

43/44

45/45

Operating

Indoor

Medium

(Cooling/Heating)

(dB•A)

33/34

34/35

36/36

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-B10GKVP-E

RAS-B13GKVP-E

RAS-B16GKVP-E

Height

(mm)

250

250

250

Dimension

Width

(mm)

790

790

790

Indoor unit

Depth

(mm)

215

215

215

Net weight

(kg)

9

9

9

Fan motor output

(W)

30

30

30

Air flow rate

(Cooling/Heating)

(m³/h)

550/610

560/640

640/660

Unit model

RAS-10GAVP-E

RAS-13GAVP-E

RAS-16GAVP-E

Height

(mm)

550

550

550

Dimension

Width

(mm)

780

780

780

Depth

(mm)

290

290

290

Outdoor unit

Net weight

(kg)

35

37

37

Motor output

(W)

750

750

750

Compressor

Type

Twin rotary type with DC-inverter variable speed control

Model

DA111A1F-20F1

DA111A1F-20F1

DA111A1F-20F1

Fan motor output

(W)

43

43

43

Air flow rate

(Cooling/Heating)

(m³/h)

2150/2150

2410/2410

2410/2410

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)

0.82

0.96

0.96

Wiring

Power supply

3 Wires : includes earth (Outdoor)

connection

Interconnection

4 Wires : includes earth

Usable temperature range

Indoor

(Cooling/Heating)

(°C)

21–32/0–28

21–32/0–28

21–32/0–28

Outdoor

(Cooling/Heating)

(°C)

5–43/–15–24

5–43/–15–24

5–43/–15–24

Installation plate

1

1

1

Wireless remote controller

1

1

1

Batteries

2

2

2

Remote controller holder

1

1

1

Zeolite-plus filter

1

1

1

Indoor unit

Mounting screw

6 (Ø4 × 25L)

6 (Ø4 × 25L)

6 (Ø4 × 25L)

Accessory

Remote controller holder

2 (Ø3.1 × 16L)

2 (Ø3.1 × 16L)

2 (Ø3.1 × 16L)

mounting screw

Plasma pure filter

1

1

1

Installation manual

1

1

1

Owner’s manual

1

1

1

Outdoor unit

Drain nipple

1

1

1

Water-proof rubber cap

2

2

2

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

–5 –

2-2. Operation Characteristic Curve
<Cooling>									<Heating>
	10								10
	9									9
	8									8
	7	RAS-B10GKVP-E								7	RAS-B10GKVP-E
											RAS-B13GKVP-E
		RAS-B13GKVP-E
											RAS-B16GKVP-E
		RAS-B16GKVP-E
	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 : 7.5m								Pipe length : 7.5m
				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)

2-3. Capacity Variation Ratio According to Temperature

<Cooling>

	110
	100
ratio (%)	90
	80
Capacity
	70
	60
	50
	32 33 34 35 36

RAS-B10GKVP-E

RAS-B13GKVP-E

RAS-B16GKVP-E

• Conditions

Indoor : DB27˚C/WB19˚C Indoor air flow : High Pipe length : 7.5m

37 38 39 40 41 42 43 44 45 46

<Heating>
	120
	100
		RAS-B10GKVP-E
		RAS-B13GKVP-E
	80	RAS-B16GKVP-E
ratio (%)
	60
Capacity
	40
	20		• Conditions
			Indoor : DB 20˚C
			Indoor air flow : High
			Pipe length : 7.5m
	0	–10	–5	0	5	10
	–15

Outdoor temp. (˚C)

Outdoor temp. (˚C)

*Capacity ratio :100% = 2.5 kW (RAS-B10GKVP-E)

3.5kW (RAS-B13GKVP-E)

4.5kW (RAS-B16GKVP-E)

– 6 –

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.

– 7 –

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

– 8 –

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

– 9 –

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
		to	46˚
		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)

– 10 –

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)	¡
		Copper pipe gauge for	Flaring by		*(Note 1)	*(Note 1)
	2	adjusting projection		Yes
			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

– 11 –

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

– 12 –

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.

– 13 –

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

– 14 –

4. CONSTRUCTION VIEWS

4-1. Indoor Unit

RAS-B10GKVP-E

RAS-B13GKVP-E

RAS-B16GKVP-E

	790
	Plasma pure filter	Indoor heat exchanger
Front panel
	790	Air filter	215
	250

7 60

					60
	53	Zeolite-plus filter		53	7
	Knockout system		Air ionizer	Knockout system

53			53
54.5	60	60	54.5

Installation plate hanging section

Installation plate	290	Drain hose
hanging section		(Outside length:0.54m)

	Connecting pipe	Connecting pipe
		(Outside length:0.45m)
	(Outside length:0.4m)
		Flare Ø6.35
	Flare Ø9.52
	(RAS-B16GKVP-E : Ø12.7)

Remote controller holder

64 5

125.5

Wireless remote controller

58 19

163

Parts name of remote controller WH-H03JE

250	167.5
	42

91

Minimum distance to wall

140 or more

3

91

		674				25
10	10	450		10	10	Stud bolt hole
		288				for Ø6
	Hanging	more	Minimum			Stud bolt hole
	section
			distance
		or	to ceilinfg			for Ø8 to Ø10
		47
						Minimum
						distance
						to wall
						74 or more
						42
Lower part				Outline of
hanging section
				installation plate
	Center line			Center line of
	of main unit
				installation plate
	304			304		91
		790

– 15 –

4-2. Outdoor Unit

RAS-10GAVP-E, RAS-13GAVP-E, RAS-16GAVP-E

A leg part

2-Ø20x88 drain long hole

320	(Anchorbort longhole pitch) 306	Ø7hole pitch	290		145.5
					30

B leg part

60

600	Ø25 drain hole							90 Ø11-14U-shape hole
108	125	30		54						(for Ø8-Ø10 anchor bolt)
										Connecting pipe port

(Pipe dia. Ø9.52:RAS-10GAVP-E, RAS-13GAVP-E) Ø12.7:RAS-16GAVP-E

	Connecting pipe port
	(Pipe dia. Ø6.35)
	8-Ø7 hole
20	(for fixing outdoor unit)
	Ø11x14 long hole
	(for Ø8-Ø10 anchor bolt)

69.5 147

21

6

550	483		449

8

35

52

32

Fan guard

483	257
108	Packed valve cover
		157	79
			21
			145
	25		Z
	22	31	143
	93	137	54
500	71	342
780		Charging port

4-Ø4.5 embossment

Fin guard

When installing the outdoor unit, leave open in at least two of

directions (A), (B), (C) and (D) Z view shown in the figure below.

	Mounting dimensions of anchor bolt
2-Ø11x14U- Shape hole		600
(for Ø8-Ø10 anchor bolt)
	D	50 or more	Intake
				250 or more A
	Intake
320	C 100 or more
			Outside line
				Minimum distance
			of product	from wall
	200 or more	B		2-Ø11x14 long hole
		Outlet		(for Ø8-Ø10 anchor bolt)

Detailed A leg part
600
54
38
11	R15
		7hole
	-Ø
	2
320	Outside line
.5
R5	of product

11	Outside line
320	of product
	2-
	Ø7	hole
	R15
	R5.
38	5
54
600
Detailed B leg part

– 16 –

5. WIRING DIAGRAM

5-1. Outdoor Unit

RAS-10GAVP-E, RAS-13GAVP-E, RAS-16GAVP-E

		Color
		Identification
		RED	: RED
		WHI	: WHITE
	220-240V ~50Hz	BLK	: BLACK
		BLU	: BLUE
	220V ~60Hz
		BRW : BROWN
		ORN	: ORANGE
		PUR	: PURPUL
		YEL	: YELLOW
5-2. Indoor Unit		GRY	: GRAY
		PNK	: PINK
RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E		GRN&	: GREEN&
		YEL	YELLOW

										BLK
									BLK	1	1
						1	2	3	4			voltage-High Powersupply	purifierAir	Electrode	BLOCK
										5	5
										2	2
										3	3				INDOOR
						1	2	3	4	4	4					1	2 3
															TERMINAL
						RED	BRW	BRW	BRW	6	6								Heat
																			exchanger
						1	2	3	4			Ion electrode			BLK		WHI	RED	GRN & YEL
						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	1	1																1	1	RED
			BLK	2	2																		BLK
THERMO SENSOR																					3	3
	(TA)																				4	4	WHI		DC MOTOR
	CN100			CN13																	5	5	YEL
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-5020)			CN08 (WHI)													LOUVER MOTOR
MCC-899 10 10
										1	2	3	4
													– 17 –

6. SPECIFICATIONS OF ELECTRICAL PARTS

6-1. Indoor Unit

RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E

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	Louver motor	MP24Z	Output (Rated) 1W, 16 poles, DC12V

6-2. Outdoor Unit

RAS-10GAVP-E, RAS-13GAVP-E, RAS-16GAVP-E

No.	Parts name	Model name		Rating
1	Reactor	CH-57	L = 10mH, 16A × 2
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-20F1	3-phases 4-poles 750W
9	Coil for P.M.V.	CAM-MD12TF	DC12V
10	Coil for 4-way valve	VHV	AC220–240V

– 18 –

7. REFRIGERANT CYCLE DIAGRAM

7-1. Refrigerant Cycle Diagram

RAS-B10GKVP-E/RAS-10GAVP-E

P Pressure measurement

Gauge attaching port

Vacuum pump connecting port

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

	INDOOR UNIT	T1	Temp. measurement
	Indoor heat
	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

4-way valve (STF-0108Z)

	Muffler	Pulse motor
		valve at liquid side
	TD	(CAM-B22YGTF-3)
	Compressor	Strainer
	DA111A1F-20F1

TS

TO

Outdoor heat exchanger

Temp. measurement T2

TE

Propeller fan		Refrigerant amount : 0.82kg
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)

–19 –

RAS-B13GKVP-E/RAS-13GAVP-E, RAS-B16GKVP-E/RAS-16GAVP-E

	INDOOR UNIT	T1	Temp. measurement
	Indoor heat
	exchanger
		TC	heightAllowable 10m:difference	lengthpipeAllowable
	Cross flow fan	TA			Max.	: 25m
P Pressure measurement					Min.	: 2m
	Deoxidized copper pipe				Chargeless : 15m
Gauge attaching port
	Outer dia. : 6.35mm				Charge : 20g/m
Vacuum pump connecting port	Thickness : 0.8mm				(16 to 25m)
Deoxidized copper pipe	Sectional shape
	of heat insulator
Outer dia. : 9.52mm(13),
12.7mm(16)
Thickness : 0.8mm

	Muffler		Strainer
4-way valve
(STF-0108Z)
	Muffler		Pulse motor
			valve at liquid side
	TD		(CAM-B22YGTF-3)
	Compressor
	DA111A1F-20F1
TS		TO
	Outdoor heat	Split capillary
	exchanger
		Ø1.2 x 80
Temp. measurement	T2	Ø1.2 x 80
		TE
	Propeller fan			Refrigerant amount : 0.96kg
	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)

–20 –

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)
			B10GKVP-E	0.9 to 1.1	13 to 15	42 to 44	High	High	37
	27/19	35/–	B13GKVP-E	0.8 to 1.0	11 to 14	42 to 45	High	High	59
			B16GKVP-E	0.7 to 0.9	8 to 11	43 to 47	High	High	82

<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)
			B10GKVP-E	2.2 to 2.4	37 to 39	0 to 3	High	High	54
	20/–	7/6	B13GKVP-E	2.5 to 2.7	42 to 45	0 to 2	High	High	65
			B16GKVP-E	2.8 to 3.0	48 to 49	0 to 2	High	High	86

NOTES :

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

2.Connecting piping condition : 7.5 m

– 21 –

8. CONTROL BLOCK DIAGRAM

8-1. Indoor Unit

RAS-B10GKVP-E, RAS-B13GKVP-E, RAS-B16GKVP-E

M.C.U.	Indoor Unit Control Unit

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

	Noise Filter			Serial Signal Transmitter/Receiver
From Outdoor Unit
	220-240V	~50Hz		Serial Signal Communication
	220V	~60Hz		(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

ECO

Hi-POWER

Air Purifier

SLEEP

– 22 –

For INDOOR UNIT	MICRO-COMPUTER BLOCK DIAGRAM

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

P.M.V. : Pulse Motor Valve

M.C.U. : Micro Control Unit

4-way P.M.V. valve

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

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 13 to 115 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, 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.

•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.

•Compressor operation control

•Operation control of outdoor fan motor

•P.M.V. control

•4-way valve control

	Operations followed to judgment
	of serial signal from indoor side.

– 24 –

9-2. Operation Description

9-2.	1.	Basic operation ...........................................................................................................	26
		1. Operation control ...................................................................................................	26
		2. Cooling/Heating operation .....................................................................................	27
		3. AUTO operation .....................................................................................................	27
		4. DRY operation ........................................................................................................	27
	2.	Indoor fan motor control .............................................................................................	28
	3.	Outdoor fan motor control...........................................................................................	30
	4.	Capacity control ..........................................................................................................	31
	5.	Current release control ...............................................................................................	31
	6.	Release protective control by temperature of indoor heat exchanger ........................	32
	7.	Quick heating control ..................................................................................................	33
	8.	Defrost control (Only in heating operation) ................................................................	33
	9.	Louver control .............................................................................................................	34
		1) Louver position .......................................................................................................	34
		2) Air direction adjustment .........................................................................................	34
		3) Swing .....................................................................................................................	34
	10.	ECO operation ............................................................................................................	35
	11.	Temporary operation ...................................................................................................	36
	12.	Air purifying control [Detection of abnormality] ..........................................................	37
	13.	Discharge temperature control ...................................................................................	37
	14.	Pulse motor valve (P.M.V.) control ..............................................................................	38
	15.	Clean operation ..........................................................................................................	39
	16.	Clean operation release ............................................................................................	40
	17.	Select switch on remote controller .............................................................................	41

9-3. Auto Restart Function .............................................................................................		42
9-3-1.	How to Set the Auto Restart Function ....................................................................	42
9-3-2.	How to Cancel the Auto Restart Function .............................................................	43
9-3-3.	Power Failure During Timer Operation ...................................................................	43

9-4.	FILTER Indicator ......................................................................................................		43
	9-4-1.	How to Turn Off FILTER Indicator ............................................................................	43
9-5.	Remote Controller and Its Fuctions ......................................................................		44
	9-5-1.	Parts Name of Remote Controller ...........................................................................	44
	9-5-2.	Name and Functions of Indications on Remote Controller .................................	45
9-6.	Hi-POWER Mode
	([Hi-POWER] button on the remote controller is pressed) ..................................		46

– 25 –

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)

•ECO

•ON timer setup

•OFF timer setup

•High power

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

• Frequency 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

• GTr over-current preventive function

• Defrost operation function

– 26 –

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.

*1. The power coupler of 4-way valve is usually turned off, and it is turned on during defrost operation. (Only in heating)

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

operation mode is selected.

speed 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

Cooling operation

20°C or more, the fan operation is

performed with ”Super Ultra LOW” mode

Ts + 1

for 3 minutes.

Monitoring (Fan)

Then, select an operation mode.

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 as

2) Starts operation under conditions in the

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 air

Setup temperature (Tsc)

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

– 27 –

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

control induction motor. The fan rotates in 5 stages in

H

: High

MANUAL mode, and in 5 stages in AUTO mode, respec-

M+

: Medium+

tively. (Table 1)

M

: Medium

L+

: Low+

L

: Low

COOL ON

L-

: Low–

UL

: Ultra Low

Fan speed setup

SUL

: Super Ultra Low

MANUAL

* The fan speed broadly varies due

(Fig. 1)

to position of the louver, etc.

The described value indicates one

AUTO

Indication

Fan speed

under condition of inclining

L

W6

downward blowing.

1) When setting the fan speed to L,

L+

(L + M) / 2

L+, M, M+ or H on the remote

M

W9

controller, the operation is

performed with the constant

M+

(M + H) / 2

speed shown in Fig. 1.

H

WC

2) When setting the fan speed to

AUTO on the remote controller,

(Fig. 2)

revolution of the fan motor is

controlled to the fan speed level

shown in Fig. 2 and Table 1

Ta

Air volume AUTO

according to the setup tempera-

ture, room temperature, and heat

[˚C]

exchanger temperature.

M+(WB)

+2.5

+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)

Tsc

e

(Table 1) Indoor fan air flow rate

Fan speed

RAS-B10GKVP-E

RAS-B13GKVP-E

RAS-B16GKVP-E

COOL

HEAT

DRY

Fan speed

Air flow rate

Fan speed

Air flow rate

Fan speed

Air flow rate

level

(rpm)

(m3/h)

(rpm)

(m3/h)

(rpm)

(m3/h)

WF

UH

1630

684

1650

694

1650

694

WE

H

1480

609

1530

634

1580

659

WD

UH

M+

1400

569

1440

589

1550

644

WC

H

1350

544

1390

564

1530

634

WB

M+

1200

468

1240

488

1380

559

WA

M

1110

423

1150

443

1230

483

W9

M

L+

980

358

1010

373

1080

408

W8

L

910

323

910

323

970

353

W7

L+

L–

L+

900

318

900

318

960

348

W6

L

L

890

313

890

313

950

343

W5

L–

UL

L–

880

308

880

308

940

338

W4

UL

UL

730

232

730

232

790

263

W3

SUL

SUL

580

157

580

157

640

187

W2

SUL

430

82

430

82

490

112

W1

400

67

400

67

400

67

– 28 –

Item

Operation flow and applicable data, etc.

Description

2. Indoor fan

<In heating operation>

1) When setting the fan speed to L,

motor control

L+, M, M+ or H on the remote

controller, the operation is per-

formed with the constant speed

HEAT ON

shown in Fig. 3 and Table 1.

2) When setting the fan speed to

AUTO on the remote controller,

MANUAL

revolution of the fan motor is

Fan speed setup

(Fig. 3)

controlled to the fan speed level

shown in Fig. 5 according to the set

Indication

Fan speed

temperature and room temperature.

3) Min air flow rate is controlled by

L

W8

temperature of the indoor heat

L+

(L + M) / 2

AUTO

exchanger (Tc) as shown in Fig. 4.

M

WA

4) Cold draft prevention, the fan

M+

(M + H) / 2

speed is controlled by temperature

of the indoor heat exchanger (Tc)

H

WE

as shown in Fig. 6.

TC ≥ 42˚C

YES

Min air flow rate control

NO

Tc

Limited to Min WD tap

52

51

42

41

No limit

* Fan speed =

(Fig. 4)

(TC

W8) + W8

Cold draft preventive control

Basic fan control

Fan speed

Tc

TA [ C]

AUTO

b

46

46

34

H (WE)

TSC

L (W8)

45

45

33

–0.5

c

Line-approximate

d

*1

33

33

21

H and SUL with Tc.

–1.0

32

32

20

e

*2

–1.5

*A+4

*A+4

*A+4

–2.0

f

*3

*A-4

*A-4

*A-4

SUL (W2)

g

Stop

–2.5

–5.0

M+ (WD)

Fan speed MANUAL in starting

Fan speed AUTO in stability

5.5

H (WE)

Fan speed AUTO in starting

*1:

4 + L

* No limitation while fan speed MANUAL mode is in stability.

*2:

4 + L

* A: When Tsc ≥ 24, A is 24, and when Tsc < 24, A is Tsc

Tsc: Set value

(Fig. 5)

(Fig. 6)

[In starting and in stability]

In starting

In stability

• Until 12 minutes passed after operation start

•

When 12 to 25 minutes passed after operation start

FAN AUTO

• When 12 to 25 minutes passed after operation

and room temp. is higher than (set temp. –3°C)

start and room temp. is 3°C or lower than set temp.

•

When 25 minutes or more passed after operation start

FAN Manual

• Room temp. < Set temp. –4°C

• Room temp. ≥

Set temp. –3.5°C

– 29 –

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
		indoor unit, the controller of outdoor unit controls fan speed.					processed by the indoor unit
		* For the fan motor, a DC motor with non-stage variable					controller and transferred to the
							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
							fan motor stopped.
	Air conditioner ON
							3) Whether the fan is locked or not
	(Remote controller)
							is detected, and the operation of
							air conditioner stops and an
	Indoor unit controller						alarm is displayed if the fan is
							locked.
							4) According to each operation
	1) Outdoor unit						mode, by the conditions of
							outdoor temperature (To) and
	operation command
	(Outdoor fan control)						compressor revolution, the speed
							of the outdoor fan shown in the
							table is selected.
	2) Fan speed ≥ 400			YES	OFF status of
	when the motor stopped.				fan motor continues.
			NO

Fan motor ON
YES	Air conditioner	Alarm
3) Fan lock	OFF	display
NO

4) Motor operates as shown in the table below.

In cooling operation

	Compressor speed (rps)		~ 13.8		~ 31.7		32.3 ~ MAX
			MIN	MAX	MIN	MAX	MIN	MAX
		To > 38°C	f 2	f 3	f C	f D	f E	f F
		To > 28°C	f 2	f 3	f B	f C	f E	f F
	To	To > 15°C	f 2	f 3	f 8	f 9	f A	f B
		To > 5.5°C	f 2	f 3	f 6	f 7	f 8	f 9
		To > 0°C	f 1	f 2	f 4	f 5	f 6	f 7
	During	To > 38°C	f 2	f 3	f B	f C	f C	f D
	ECO mode	To < 38°C	f 2	f 3	f 2	f 3	f B	f C
	When To is abnormal		f D	f F	f D	f F	f D	f F

In Heating operation

	Compressor speed (rps)		~16.8	~47.9	48.5 ~ MAX
		To > 15°C	f 3	f 8	f 9
	To	To < 15°C	f 3	f 9	f A
		To < 5.5°C	f 8	f A	f D
		To < –5.0°C	f B	f C	f D
		To > 15°C	f 3	f 3	f 6
	During	To < 15°C	f 3	f 3	f 8
	ECO mode	To < 5.5°C	f 5	f 9	f 9
		To < –5.5°C	f 7	f A	f B
	When To is abnormal		f A	f B	f D

Outdoor fan speed (rpm)

Tap	10GAVP-E		13GAVP-E	16GAVP-E
f 1	200		200	200
f 2	300		300	300
f 3	390		390	390
f 4	450		450	450
f 5	500		500	500
f 6	500		500	500
f 7	600		600	600
f 8	600		600	600

Tap	10GAVP-E		13GAVP-E	16GAVP-E
f 9	700		700	700
f A	700		700	700
f B	700		700	700
f C	700		700	700
f D	750		840	920
f E	750		840	920
f F	750		840	920

– 30 –