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FILE NO. A00-T004
SUPPLEMENT
SERVICE MANUAL
AIR-CONDITIONER
SPLIT TYPE
RAS-10YKV-E / RAS-10YAV-E
RAS-13YKV-E / RAS-13YAV-E
R410A
PRINTED IN JAPAN, Aug.,2000 ToMo
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CONTENTS 1. SPECIFICATIONS ...........................................................3 2. REFRIGERANT R410A...................................................6 3. CONSTRUCTION VIEWS ..............................................14 4. WIRING DIAGRAM........................................................16 5. SPECIFICATIONS OF ELECTRICAL PARTS...............18 6. REFRIGERANT CYCLE DIAGRAM..............................19 7. CONTROL BLOCK DIAGRAM .....................................21 8. OPERATIO
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1. SPECIFICATIONS 1-1. Specifications RAS-10YKV-E/RAS-10YAV-E Unit model Indoor RAS-10YKV-E Outdoor RAS-10YAV-E Current limited — Cooling capacity (kW) 2,7 Cooling capacity range (kW) 0,8 – 3,4 Heating capacity (kW) 3,6 Heating capacity range (kW) 0,8 – 6,2 Power supply 220 – 230 –240V – 1Ph – 50/60Hz Electric Indoor Operation mode Cooling Heating characteristics Running current (A) 0,15 0,15 Power consumption (W) 30 30 Power factor (%) 87 87 Outdoor Operation mode Cooling Heating Running curre
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RAS-13YKV-E/RAS-13YAV-E Unit model Indoor RAS-13YKV-E Outdoor RAS-13YAV-E Current limited — Cooling capacity (kW) 3,7 Cooling capacity range (kW) 0,8 – 4,0 Heating capacity (kW) 4,8 Heating capacity range (kW) 0,8 – 6,6 Power supply 220 – 230 –240V – 1Ph – 50/60Hz Electric Indoor Operation mode Cooling Heating characteristics Running current (A) 0,15 0,15 Power consumption (W) 30 30 Power factor (%) 87 87 Outdoor Operation mode Cooling Heating Running current (A) 5,59 / 5,34 / 5,11 7,03 / 6,71 /
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1-2. Operation Characteristic Curve 7 7 6 6 RAS-10YKV-E RAS-10YKV-E RAS-13YKV-E RAS-13YKV-E 5 5 4 4 3 3 2 2 Conditions • Conditions Indoor : DB 27˚C/WB 19˚C Indoor : DB 20˚C Outdoor : DB 35˚C Outdoor : DB 7˚C/WB 6˚C Air flow : High Air flow : High 1 1 Pipe length : 5m Pipe length : 5m 230V 230V 0 0 0 20 40 60 80 100 0 20 40 60 80 100 Compressor speed (rps) Compressor speed (rps) 1-3. Capacity Variation Ratio According to Temperature 105 120 Current Limited Start
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2. REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC (5) After completion of installation work, check to (R410A) which does not damage the ozone layer. make sure that there is no refrigeration gas leakage. The working pressure of the new refrigerant R410A is 1,6 times higher than conventional refrigerant If the refrigerant gas leaks into the room, coming (R22). The refrigerating oil is also changed in into contact with fire in the fan-driven heater, accordance with change of
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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 b) Socket Joints For copper pipes, flare joints or socket joints are Socket joints are such that they are brazed used. Prior to use, be sure to remove all con- for connections, and used mainly for thick taminants. pipings whose diameter is larger than 20 mm. Thicknesses of socket joints are as show
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c) Insertion of Flare Nut Flare processing dimensions differ according to the type of flare tool. When using a con- d) Flare Processing ventional flare tool, be sure to secure “dimen- Make certain that a clamp bar and copper sion A” by using a gauge for size adjustment. pipe have been cleaned. ØD By means of the clamp bar, perform the flare A processing correctly. Use either a flare tool for R410A or conven- tional flare tool. Fig. 2-2-1 Flare processing dimensions Table 2-2-3 Dimensions relat
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43˚~45˚ Table 2-2-6 Flare and flare nut dimensions for R22 Outer Dimension (mm) Flare nut Nominal Thickness diameter width diameter (mm) AB C D (mm) (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 B A D C Fig. 2-2-2 Relations between flare nut and flare seal surface (2) Flare Connecting Procedures and Precautions When it is strong, the flare nut may crack and may be mad
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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. Acc
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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. 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 Connect the charge hose to packed valve service power switch. port at the outdoor unit’s gas side. Keep the st
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Be sure to make setting so that liquid can be charged. 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
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(2) Characteristics required for flux 2-5-3. Brazing • Activated temperature of flux coincides with As brazing work requires sophisticated techniques, the brazing temperature. experiences based upon a theoretical knowledge, it • Due to a wide effective temperature range, flux must be performed by a person qualified. is hard to carbonize. In order to prevent the oxide film from occurring in • It is easy to remove slag after brazing. the pipe interior during brazing, it is effective to • The corro
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3. CONSTRUCTION VIEWS 3-1. Indoor Unit RAS-10YKV-E, RAS-13YKV-E Heat exchanger Air inlet Air filter 189 790
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54 R5,5 3-2. Outdoor Unit 600 90 A leg part Ø11 x 17U-shape hole RAS-10YAV-E Ø25 drain hole 50 (For Ø8-Ø10 anchor bolt) 115 RAS-13YAV-E 8-Ø6 hole (For fixing outdoor unit) B leg part Ø11 x 17 long hole (For Ø8-Ø10 anchor bolt) Ø4,5 embossing (Ø4STS used) (For sunshade roof attaching) Valve cover 157 Fan guard 59 49,5 147 115,5 Hanger Z Charging port 780 61 322 Earth terminal Connecting pipe port (Pipe dia.Ø6,35) Detailed A leg part 600 50 R15 36 Connecting pipe port 11 (Pipe dia.Ø9,52) Z view O
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4. WIRING DIAGRAM FAN MOTOR 4-1. Indoor Unit LOUVER RAS-10YKV-E, RAS-13YKV-E MOTOR DC MOTOR 6 5 4 3 2 1 5 4 3 2 1 6 5 4 3 2 1 5 4 3 2 1 CN10 CN07 R109 5 6 VARISTOR R116 BLK IC04 P04 J04 SG01 DSA L01 R01 T6,3A 250V DB01 TO1 F01 FUSE DC35V R21 3 INDOOR DC12V TERMINAL C02 C15 C01 BLOCK DC7V 2 BLK 1 DC0V CN30 WHI MAIN P.C. BOARD 2 C06 RED 3 (MCC-772) IC02 GRN & YEL IC CN23 IC01 4 CN13 CN03 CN01 OUTDOOR INDOOR 1 2 3 4 5 6 7 8 9 1 2 1 2 UNIT UNIT 1 2 1 2 1 2 3 4 5 6 7 8 9 HEAT 1 1 2 3 4 5 6 7 8 9 CN2
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4-2. Outdoor Unit RAS-10YAV-E, RAS-13YAV-E P.M.V. : Pulse Modulating Valve COIL THERMOSTAT POWER FOR FOR SUPPLY To 4WAY VALVE COMPRESSOR 220/240V~ INDOOR TE TD TO TS 50/60Hz UNIT FAN MOTOR REACTOR ~ ~ ~ ~ ~ ~ ~ P.M.V . L N 1 2 3 FM 1 2 1 2 1 2 1 2 3 1 2 1 2 3 5 4 3 2 1 1 2 3 1 2 3 6 5 4 3 2 1 1 2 1 2 1 2 3 1 2 1 2 3 5 4 3 2 1 1 2 3 1 2 3 BLK 6 5 4 3 2 1 1 2 CN600 CN601 CN602 CN603 P08 P07 CN301 CN300 CN701 P06 CN703 CN500 P01 P02 P03 P.C. BOARD F01 MCC-808 FUSE SURGE 25A RELAY ABSORBER VARISTOR
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5. SPECIFICATIONS OF ELECTRICAL PARTS 5-1. Indoor Unit RAS-10YKV-E, RAS-13YKV-E No. Parts name Type Specifications 1 Fan motor (for indoor) TICF-35-19-4 DC35V, 19W 2 Thermo. sensor (TA-sensor) ( – ) 10kΩ at 25°C 3 DC-DC transformer (T01) SWT-34 or SWT-46 DC390V, Secondary DC35V, 12V, 7V 4 Microcomputer TMP87PM40AF or TMP87CM40AF Heat exchanger temp. sensor 5 ( – ) 10kΩ at 25°C (TC-sensor) 6 Line filter (L01) UF-253Y0R7 25mH, AC0,7A 7 Diode (DB01) RBV-406 or D3SBA60 4A, 600V 8 Capacitor (C02) KM
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6. REFRIGERANT CYCLE DIAGRAM 6-1. Refrigerant Cycle Diagram RAS-10YKV-E/RAS-10YAV-E RAS-13YKV-E/RAS-13YAV-E T1 Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Pressure measurement P Deoxidized copper pipe Max. : 15m Outer dia. : 6,35mm Gauge attaching port Thickness : 0,8mm Vacuum pump connecting port Sectional shape Deoxidized copper pipe of heat insulator Outer dia. : 9,52mm Thickness : 0,8mm Strainer Muffler 4-way valve (CHV-0213) Pulse modulating Muffler va
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6-2. Operation Data Temperature Heat exchanger Standard Compressor condition (°C) pipe temp. Indoor fan Outdoor fan Model name pressure revolution mode mode P (MPa) (rps) Indoor Outdoor T1 (°C) T2 (°C) 10YKV-E 0,8 to 1,0 9 to 11 42 to 44 High High 56 27/19 35/– 13YKV-E 0,8 to 1,0 8 to 10 46 to 48 High High 85 Temperature Heat exchanger Standard Compressor condition (°C) pipe temp. Indoor fan Outdoor fan Model name pressure revolution mode mode P (MPa) (rps) Indoor Outdoor T1
