Internal Use nly http://biz.lgservice.com Multi Air Conditioner SVC MANUAL(Exploded View) MDEL : A4UW246FA3 CAUTIN Before Servicing the unit, read the safety precautions in General SVC manual. nly for authorized service personnel. nly for training and service purposes - 1 - LGE Internal Use nly
1. Specification utdoor Unit Nominal Capacity Cooling kw (Min~Rated~Max) Btu/h Heating kw Btu/h Nominal Input Cooling kw (Min~Rated~Max) Heating kw Energy label Testing Combination Running Current Cooling A Heating A Starting Current (Cooling/Heating) A Power Supply Ø / V / Hz Power Supply Cable (outdoor) No.x mm 2 Power and transmission cable (outdoor to indoor) No.x mm 2 Dimensions W*H*D mm(inch) Net Weight kg(lbs) Max. Number of Connectable Indoor Units Compressor (Inverter) Type Qty x Model Motor Type il Charge volume cc il Type Refrigerant Charge (at 7.5m) g(oz) Type Control Heat Exchanger Rows x Column x FPI Defrosting Method Fan Capacitor µf/vac Drive Discharge direction Side / Top Air Flow Rate CMM(CFM) Noise Level(H) Sound Pressure at 1m db(a)±3 Piping connections Liquid(Ø) mm(inch) Gas(Ø) mm(inch) Max. Interunit Total of Each Room m Piping Length For ne Room m Max. Elevation Indoor Unit~utdoor Unit m Indoor Unit~Indoor Unit m A4UW246FA3 1.85 ~ 7.03 ~ 8.5 6,300 ~ 24,000 ~ 29,000 2.22 ~ 8.44 ~ 9.38 7,560 ~ 28,800 ~ 32,000 0.72 ~ 1.99 ~ 2.75 0.88 ~ 1.96 ~ 2.79 A/A MS07AH N40 * 2EA, MS09AH N40 * 2EA 2.3 ~ 8.0 ~ 13.0 3.0 ~ 9.0 ~ 13.0-1 / 220~240 / 50 3 * 2.5 4 x 0.75 (Including Earth) 870 * 808 * 320(34.3 * 31.8 * 12.6) 61(134) 4 Twin-Rotary 5KD240X BLDC 900 FV50S 2,000 (70.5) R410A L.E.V 2R * 36C * 18 Reversing cycle - DC Side 53 (1872) 52 6.35 (1/4) * 4EA 9.52 (3/8) * 4EA 70 25 15 7.5 Note: 1. Capacities are based on the following conditions: Cooling: - Indoor Temperature 27 C(80.6 F) DB/19 C(66.2 F) WB - utdoor Temperature 35 C(95 F) DB/24 C(75.2 F) WB Heating: - Indoor Temperature 20 C(68 F) DB/15 C(59 F) WB - utdoor Temperature 7 C(44.6 F) DB/6 C(42.8 F) WB Piping Length - Interconnecting Piping Length 7.5m - Level Difference of Zero 2. Wiring cable size must comply with the applicable local and national code. 3. The specification may be subject to change without prior notice for purpose of improvement. nly for training and service purposes - 2 - LGE Internal Use nly
2. Function Table Category Reliability Convenience CAC network function Special function kit thers Defrost / Deicing High pressure switch Low pressure switch Phase protection Restart delay (3-minutes) Self diagnosis Soft start Test function Auto operation(artificial intelligence) Auto restart operation Network soluation(lgap) PDI(Power Distribution Indicator) PI485 Low ambient operation Thermistor Function A4UW246FA3 X X PQNUD1S00 PMNFP14A0 X - Note : : Applied X : Not applied - : No relation ption : Model name & price are different according to options, and assembled in factory with main unit. Accessory : Installed at field, ordered and purchased separately by the corresponding model name, supplied with separate package : These safty switcher are standard or optional features defending on region & country nly for training and service purposes - 3 - LGE Internal Use nly
3. Piping Diagrams UTDR UNIT Ø9.52 Reversing Valve Th4 EEV-D EEV-C Low Pressure S/W Acc Acc Th2 CMP Th1 Ø6.35 EEV-B EEV-A 5KD240XCA21 Th3 Refrigerant Flow Cooling Heating Note: CMP: Compressor(Inverter) Acc: Accumulator EEV: Electronic Expansion Valve Filter LC. Description PCB Connector Th1 Thermistor for discharge pipe temperature CN_TH3 Th2 Thermistor for suction pipe temperature CN_TH3 Th3 Thermistor for condensing temperature CN_TH2 Th4 Thermistor for outdoor air temperature CN_TH2 nly for training and service purposes - 4 - LGE Internal Use nly
4. Wiring Diagrams CN_CIL2 CN_CIL1 CN_4WAY CN_PRESS PIPE LENGTH S/W CN_TH3 CN_TH1 CN_TH2 CN_MTR CN_LEV1 CN_LEV2 CN_LEV3 CN_LEV4 CN_CM nly for training and service purposes - 5 - LGE Internal Use nly
5. Exploded View 435301 349480 435512 437210 137213B 554031 W4810 549610 346810 261704 559010 447910 430411 268711B 567480E 548490 566000 554160 435300 567480D 561410 A B C 552116 D 552113 137213A 435511 552111 552115 649950 A B C D 661400A 661400B 661400C 661400D 552200 552203A 552203B NTE * Please ensure GCSC since the replacement parts may be changed depending upon the buyer's request. Please check the correct parts in View RPL(Replacement Part List) on GCSC. (GCSC Website http://biz.lgservice.com) nly for training and service purposes - 6 - LGE Internal Use nly
P/N : MFL37456104 JANUARY, 2008