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FILE NO. SVM-03008
SERVICE MANUAL
AIR CONDITIONER
SPLIT WALL TYPE
RAS-13UKV-E2 / RAS-13UAV-E2
Jun., 2003
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FILE NO. SVM-03008 CONTENTS 1. SPECIFICATIONS 1-1 Specifications 1-2 Operation Characteristic Curve 1-2 Capacity Variation Ratio According to Temperature 2. REFRIGERANT R410A 2-1 Safety During Installation/Servicing 2-2 Refrigerant Piping Installation 2-3 Tools 2-4. Recharging of Refrigerant 2-5. Brazing of Pipes 3. CONSTRUCTION VIEWS 3-1 Indoor Unit 3-2 Outdoor Unit 4. WIRING DIAGRAM 4-1 Indoor Unit 4-2 Outdoor Unit 5. SPECIFICATION OF ELECTRICAL PARTS 5-1 Indoor Unit 5-2 Outdoor Unit 6. REFRIG
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FILE NO. SVM-03008 10. HOW TO DIAGNOSE THE TROUBLE 10-1 First Confirmation 10-2 Primary Judgment 10-3 Judgment by Flashing LED of Indoor Unit 10-4 Self-Diagnosis by Remote Control (Check Code) 10-5 Judgment of Trouble by Every Symptom 10-6 Check Code 1C (Miswiring in indoor/outdoor units) and 1E 10-7 How to Diagnose Trouble in Outdoor Unit 10-8 How to Check Simply the Main Parts 10-9 How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 11. HOW TO REPLACE THE MAIN PARTS 11-1 Indoor Unit 1
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FILE NO. SVM-03008 1. SPECIFICATIONS 1-1. Specifications Unit model Indoor RAS-13UKV-E2 Outdoor RAS-13UAV-E2 Current limited — Cooling capacity (kW) 3.5 Cooling capacity range (kW) 0.9 – 4.0 Heating capacity (kW) 4.2 Heating capacity range (kW) 0.9 – 6.0 Power supply 220 – 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) 4.6
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FILE NO. SVM-03008 1-2. Operation Characteristic Curve 7 7 6 6 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 120 105 Current Limited Start 110 100 100 95 90 9
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FILE NO. SVM-03008 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 If the refrigerant gas leaks into the room, coming 1.6 times higher than conventional refrigerant (R22). into contact with fire in the fan-driven heater, The refrigerating oil is also changed in accord
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FILE NO. SVM-03008 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 for used. Prior to use, be sure to remove all connections, and used mainly for thick pipings contaminants. whose diameter is larger than 20 mm. Thicknesses of socket jo
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FILE NO. SVM-03008 Table 2-2-3 Dimensions related to flare processing for R410A A (mm) Outer Nominal Thickness diameter Conventional flare tool Flare tool for R410A 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 A (mm) Outer Nominal Thickness diameter C
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FILE NO. SVM-03008 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 a) Make sure that the flare and union portions do may be made non-removable. When choosing not have any scar or dust, etc. the tightening torque, comply with values designated by manufacturers. Table 2-2-7 b) Correctly align the processed flare surface with shows reference values. the union axis. Note: c) Tighten the fla
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FILE NO. SVM-03008 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 ∅12.70 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
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FILE NO. SVM-03008 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 indi- cated -0.1 Mpa (-76 cmHg), place the handle Low in the fully closed position, and turn off the Connect the charge hose to packed valve service vacuum pump’s power switch. port at the outdoor unit’s gas s
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FILE NO. SVM-03008 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
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FILE NO. SVM-03008 (2) Characteristics required for flux 2-5-3. Brazing • Activated temperature of flux coincides with the As brazing work requires sophisticated techniques, brazing temperature. experiences based upon a theoretical knowledge, it • 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 the • It is easy to remove slag after brazing. pipe interior during brazing, it is effec
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170 or more 170 or more FILE NO. SVM-03008 3. CONSTRUCTION VIEWS 3-1. Indoor Unit Front panel Air filter Air inlet Heat exchanger 208 790 Back body 48 Air outlet Knock out system Knock out system 64 53 120 590 80 Hanger Connecting pipe (0.43m) Drain hose (0.54m) 320 (Flare ∅6.35) Hanger Connecting pipe (0.33m) Flare ∅9.52 620 For stud bolt 235 235 (∅8~∅10) 215 215 For stud bolt (∅6) Minimum Hanger distance to ceiling Minimum Minimum distance distance to ceiling to ceiling Hanger 57 18 Hanger Wi
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54 FILE NO. SVM-03008 3-2. Outdoor Unit A 32.5 A Detail drawing (Back Leg) 115 125 B Detail drawing (Front Leg) 600 52 36 ∅6 Hole R15 ∅6 Hole 36 R15 ∅11 x 14 Hole 52 R5.5 B ∅30 Drain outlet 2-∅11 x 14 Hole (For ∅8-∅10 anchor bolt) FAN GUARD ∅436 COVER PV Z 270 310 600 90 330 780 62 Electrical part cover Liquid side (Flare ∅6.35) Gas side (Flare ∅9.52) Z View Service port Installation dimension 600 600 or more Air inlet 600 or more Air outlet 600 or more 100 or more 4 x ∅11 x 14 Long holes (For ∅
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FILE NO. SVM-03008 4. WIRING DIAGRAM 4-1. Indoor Unit Table 4-1-1 Simple Check for Failure Diagnosis Check Item Diagnosis Result Check to see if the OPERATION indicator goes on and off when the main OPERATION switch or breaker is turned on. 1 INDICATOR (Check the primary and secondary voltage of the transformer.) Check the power supply voltage between 1 and 2. (Refer to the name plate.) TERMINAL BLOCK (Check the primary and secondary voltage of the transformer.) 2 Check the fluctuating voltage b
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ORN FILE NO. SVM-03008 4-2.Outdoor Unit PULSE TING MODULA E COIL for W-4E PMV TE TD TS WHI YEL BLU RED YGR T A 1 2 1 2 3 1 2 1 2 3 1 2 3 1 2 3 4 5 6 1 2 1 2 3 1 2 1 2 3 1 2 3 BLK 1 2 3 4 5 6 CN601 CN602 CN603 P06 CN703 1 1 2 2 SURGE ABSORBER P07 1 1 P08 2 2 Y N Y RELA V F01 P01 BLK L CT ORN FUSE P03 3 P09 ORN T25A WHI 2 P10 P02 1 Y G E A 1 1 1 P1 F04 2 2 FUSE P12 CONVERTER MODULE T3.15A P13 DB01 PUR Q300 P19 P14 W BR P20 N A F CN300 RED 1 1 BU WHI 2 2 FM EU BLK 3 3 BV EV YEL BW 1 1 EW P.C. BOA
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FILE NO. SVM-03008 5. SPECIFICATION OF ELECTRICAL PARTS 5-1. Indoor Unit No. Parts name Type Specifications 1 Fan motor (for indoor) ICF-340-30-2 DC 340 V, 30 W 2 Thermo. sensor (TA-sensor) ——— 10 kΩ at 25°C 3 DC-DC transformer (T01) SWT-70 DC 390 V, Secondary DC 15 V, 12 V, 7 V 4 Microcomputer µ PD780024AGK 5 Heat exchanger sensor ——— 10 kΩ at 25°C (TC-sensor) 6 Line filter (L01 SS11V-06270 27mH, AC 0.6A 7 Diode (DB01) D3SBA60 4A, 600 V 8 Capacitor (C03) KMH450VNSN120M25C 120µ F, 450 V 9 Fuse
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FILE NO. SVM-03008 6. REFRIGERANT CYCLE DIAGRAM 6-1. Refrigerant Cycle Diagram T1 Temp. measurement INDOOR UNIT Indoor heat exchanger Cross flow fan Pressure measurement P Max. : 15 m Deoxidized copper pipe Gauge attaching port Outer dia. : 6.35 mm Vacuum pump connecting port Thickness : 0.8 mm Sectional shape Deoxidized copper pipe of heat insulator Outer dia. : 9.52 mm Thickness : 0.8 mm Strainer Muffler 4-way valve (CHV-0213) Pulse modulating Muffler valve at liquid side (SEV16RC3
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FILE NO. SVM-03008 6-2. Operation Data Temperature Heat exchanger Standard Indoor Outdoor Compressor Model condition (°C) pipe temp. pressure fan fan revolution name P (MPa) mode mode (rps) Indoor Outdoor T1 (°C) T2 (°C) 27/19 35/– 13UKV-E2 0.8 to 1.0 9 to 11 49 to 45 High High 77 Temperature Heat exchanger Standard Indoor Outdoor Compressor Model condition (°C) pipe temp. pressure fan fan revolution name P (MPa) mode mode (rps) Indoor Outdoor T1 (°C) T2 (°C) 20/– 7/6 13UKV-E
