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FILE NO. SVM-07008-1
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-10SKV-E / RAS-10SAV-E
RAS-10SKV-A / RAS-10SAV-A
Revised May, 2007
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FILE NO. SVM-07008 CONTENTS 1. SAFETY PRECAUTIONS .......................................................................... 2 2. SPECIFICATIONS ..................................................................................... 4 3. REFRIGERANT R410A ............................................................................. 6 4. CONSTRUCTION VIEWS ........................................................................ 14 5. WIRING DIAGRAM ...............................................
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FILE NO. SVM-07008 1. SAFETY PRECAUTIONS For general public use 2 Power supply cord of outdoor unit shall be more than 1.5 mm (H07RN-F or 60245IEC66) polychloroprene sheathed flexible cord. Read this “SAFETY PRECAUTIONS” carefully before servicing. The precautions described below include the important items regarding safety. Observe them without fail. After the servicing work, perform a trial operation to check for any problem. Turn off the main power supply switch (or breaker) before t
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FILE NO. SVM-07008 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 CARE- FUL NOT TO ALLOW THE SPECIFIED REFRIGERANT (R410A) TO BECOME MIXED WI
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FILE NO. SVM-07008 2. SPECIFICATIONS 2-1. Specifications Unit model Indoor RAS-10SKV-E, RAS-10SKV-A Outdoor RAS-10SAV-E, RAS-10SAV-A Cooling capacity (kW) 2.5 Cooling capacity range (kW) 1.1 - 3.0 Heating capacity (kW) 3.2 Heating capacity range (kW) 0.9 - 4.1 Power supply 1Ph/50Hz/220-240V Electric Indoor Operation mode Cooling Heating characteristic Running current (A) 0.16 - 0.14 0.16 - 0.14 Power consumption (W) 30 30 Power factor (%) 87 87 Outdoor Operation mode Cooling Heating Running c
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FILE NO. SVM-07008 2-2. Operation Characteristic Curve 6 6 5 5 4 4 3 3 2 2 Conditions Conditions o o o Indoor : DB 27 C/WB 19 C Indoor : DB 20 C 1 1 o o o Outdoor : DB 35 C Outdoor : DB 7 C/WB 6 C Air Flow : High Air Flow : High Pip Length : 5m Pip Length : 5m Voltage : 230V Voltage : 230V 0 0 0 1020 304050607080 90 100110120 0 1020304050 60708090 100110120 Compressor Speed (rps) Compressor Speed (rps) 2-3. Capacity Variation Ratio According to Temperature
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FILE NO. SVM-07008 3. REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC 6. When an air conditioning system charged with a (R410A) which does not damage the ozone layer. large volume of refrigerant is installed in a small room, it is necessary to exercise care so that, The working pressure of the new refrigerant R410A even when refrigerant leaks, its concentration is 1.6 times higher than conventional refrigerant does not exceed the marginal level. (R22). The refrigerating o
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FILE NO. SVM-07008 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
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FILE NO. SVM-07008 d) Flare Processing Make certain that a clamp bar and copper 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. Flare processing dimensions differ according to the type of flare tool. When using a con- ventional flare tool, be sure to secure “dimen- sion A” by using a gauge for size adjustment. Fig. 3-2-1 Flare processing dimensions Table 3-2-3 Dimensions related to
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43˚ to 45˚ FILE NO. SVM-07008 Table 3-2-6 Flare and flare nut dimensions for R22 Dimension (mm) Nominal Outer diameter Thickness Flare nut width diameter (mm) (mm) (mm) ABCD 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 C D 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
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FILE NO. SVM-07008 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, cloggin
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FILE NO. SVM-07008 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. 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. Connect the charge hose to packed valve service port at the outdoor unit’s ga
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FILE NO. SVM-07008 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 wi
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FILE NO. SVM-07008 2. Characteristics required for flux 3-5-3. Brazing • Activated temperature of flux coincides with the As brazing work requires sophisticated techniques, brazing temperature. experiences based upon a theoretical knowledge, it must be performed by a person qualified. • Due to a wide effective temperature range, flux is hard to carbonize. In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to • It is easy to remove slag after br
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FILE NO. SVM-07008 4. CONSTRUCTION VIEWS 4-1. Indoor Unit Front panel Air inlet Air filter Heat exchanger 740 195 58 Air outlet Knock out system Knock out system 60 55 55 60 105 500 135 Connecting pipe (0.37m) 290 Drain hose (0.5m) (Flare 6.35) Hanger Connecting pipe (0.37m) (Flare 9.52) 605 For stud bold ( 8~ 10) 235 235 For stud bold ( 6) 215 215 Hanger 56 19 Wireless remote control Hanger Hanger 90 135 145 145 135 90 Installation plate outline Center line – 14 – 60 8 250 45 250 50 50 38 26
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FILE NO. SVM-07008 4-2. Outdoor Unit C L C L - 15 -
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FILE NO. SVM-07008 5. WIRING DIAGRAM 5-1. Indoor Unit – 16 –
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FILE NO. SVM-07008 – 17 – 5-2. Outdoor Unit
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FILE NO. SVM-07008 6. SPECIFICATION OF ELECTRICAL PARTS 6-1. Indoor Unit No. Parts name Type Specifications 1 Fan motor (for indoor) AFS-220-20-4AR AC Motor with 145°C thermo fuse 2 Thermo. sensor (TA-sensor) 10 kΩ at 25°C 3 Micro power module (T101) mRM1260V 4 Microcontroller unit (IC81) μPD780076GK-703-9ET-A 5 Heat exchanger sensor 10 kΩ at 25°C (TC-sensor) 6 Line filter (L01)
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FILE NO. SVM-07008 6-2. Outdoor Unit (RAS-10SAV-E, RAS-10SAV-A) No. Parts name Model name Rating 1 SC coil L01 GET-0451 0.6mH, 15A (Noise filter) L03 GET-0452 2.0 mH, 10A 2 DC-DC transformer SWT-72 Primary side DC280V, Secondary side 7.0 V x 1, 12 V x 1, 17V x 2 3 Reactor CH-51-Z-T L=19mH, 10A SKF-240-20B-1 4 Outside fan motor 20W 5 Fan control relay G5NB-1A Co
