Internal Use nly http://biz.lgservice.com Multi Air Conditioner SVC MANUAL(Exploded View) MDEL : L8UC100BFA3 L8UC100BFE3 CAUTIN Before Servicing the unit, read the safety precautions in General SVC manual. nly for authorized service personnel.
1. Specification utdoor Unit Nominal Capacity Cooling kw (Min~Rating~Max) Btu/h Heating kw Btu/h Nominal Input Cooling kw (Min~Rating~Max) Heating kw Testing Combination Running Current(Rating) Cooling A Heating A Starting Current Cooling/Heating A Power Supply Ø / V / Hz Power Supply Cable(utdoor) No. x mm 2 Power and Transmission Cable(utdoor to Indoor or utdoor to BD) No. x mm 2 Power and Transmission Cable(BD to Indoor) No. x mm 2 Dimensions W x H x D Net Weight kg(lbs) Max. Number of Connectable Indoor Units Compressor (#1) Qty x Model Motor type il charge volume cc il Compressor (#2) Qty x Model Motor type il charge volume cc il type Compressor (#3) Qty x Model Motor type il charge volume cc il type Refrigerant Cycle A Charge (at 7,5m) g(oz) Cycle B Charge (at 7,5m) g(oz) Control Additional Refrigerant Charge g/m(oz/ft) Heat Exchanger (Rows x Column x FPI) No. Defrosting Method Fan Capacitor μf/vac Drive Discharge Direction(Side/Top) Air Flow RateNo. of Fan CMM(cfm) Sound Level(H/L) Sound Pressure db(a)+3 Piping Connections Liquid(Cycle A) Gas(Cycle A) Liquid(Cycle B) Gas(Cycle B) High Pressure Gas Max. Interunit Total Piping m Piping Length Main Piping m Total Branch Piping m Each Branch Piping m Max. Elevation utdoor Unit~Indoor Unit m Difference Indoor Unit~Indoor Unit m peration Range Cooling C( F) (utdoor) Heating C( F) 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. L8UC100BFA3/ L8UC100BFE3 3.52~28.72 12,000~98,000 2.5~9.75 Cycle 1 : LMNC122D4A0 + LMNC36GTNA0 Cycle 2 : LMNC24GTPA0 + LMNC242D5A0 8.5~30.5 3/220/60 4 x 13.3 (Including Earth) 4 x 0.75 (Including Earth) 4 x 0.75 (Including Earth) 1,280 x 1,520 x 730 (50.4 x 59.8 x 28.7) 260 (551) 8 Rotary 2 x QP348RAA Single Phase Induction Motor 1,130 NM56 or SUNIS 4GSI Rotary 2 x QP348RAA Single Phase Induction Motor 1,130 NM56 or SUNIS 4GSI 4,300 (151.9) 4,300 (151.9) R22 EEV / Short tube Ø12.7 : 20(0.2) / Ø15.88 : 30(0.3) / Ø19.05 : 50(0.5) (2R x 14C x 17) x 2 + (1R x 28C x 17) x 2 Reversing Cycle 10/370 Direct Drive Top 53x2 (3,179) 60/60 9.52(3/8) 19.05(3/4) 9.52(3/8) 19.05(3/4) 110 50 60 15 45 10 21 (69.8) ~ 54 (129.2) Conversion Formula kw = Btu/h 0.0002931 cfm = CMM 35.3 nly for training and service purposes 2 LGE Internal Use nly
2. List of Functions Category Reliability Convenience CAC Network Function Special Function Kit thers Function Defrost / deicing High pressure switch Low pressure switch Phase reverse Phase failure protection Restart delay (3minutes) Self diagnosis Soft start Test function Auto operation(artificial intelligence) Auto restart operation Central control(lgap) PDI(Power Distribution Indicator) PI485 Low Ambient Kit Thermistor L8UC100BFA3 L8UC100BFE3 PQNUD1S00 PMNFP14A0 / PMNFP14A1 : Applied : 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 H : These safety 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 Gas (Ø19.05) il seperator Solenoid TH4 TH1 Liquid (Ø9.52) Heat Exchanger Accumulator Compressor A Compressor B TH2 Gas (Ø19.05) Liquid (Ø9.52) Solenoid TH5 il seperator Accumulator Heat Exchanger Refrigerant Flow Cooling Compressor C Compressor D TH3 LC. Description PCB Connector TH1 Thermistor for outdoor air temperature CN_TH1 TH2 Thermistor for condensing temperature CN_TH1 TH3 Thermistor for condensing temperature CN_TH2 TH4 Thermistor for discharge temperature CN_TH2 TH5 Thermistor for discharge temperature CN_TH3 nly for training and service purposes 4 LGE Internal Use nly
4. Wiring Diagrams 1.Wiring Diagram 2.PCB CN_PRESS2 CN_PWER CN_PRESS1 CN_CMP CN_FAN1 CN_FAN2 CN_SV CN_CM CN_TH1 CN_TH2 CN_TH3 nly for training and service purposes CN_3PHASE 5 LGE Internal Use nly
5. Exploded View 137213A 435512 559010 559010 552113B 549610 435512 549610 546810 435312 554030A Air/Defrost CN_TH1 263230A 546810 W4811A W4811B 552113A W4811F 263230B 554030B 552112D Defrost/Dis CN_TH2 552112A 552112C W49810C W4811D 554030D 435310 552112B W49810E 137213B 559990A 554030C 447910A 447910B 330871 W49810B 437211 W49810A W4811A W4811E W49810D Dis CN_TH3 263230C W4811C 552114A 552203B 552117A 148000 566001 749750 W0CZZ 552203A W6640C 552114B 552117B 552204 435511 437212 W6640A W6920 W6640B 268711 649950 554160 430410 559990B 561410A MPS_A S/V Coil 561410B MPS_A S/V Coil Note) * 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 : MFL56755302 MAY, 2014