User manual LG 78359

[. . . ] SPECIFICATION OF ELECTRICAL PARTS Indoor Unit (RAS-24UKHP-E, 18UKHP-E) Outdoor Unit (RAS-24UAH-E) Outdoor Unit (RAS-18UAH-E) Indoor Unit (RAS-24UKP-E, 24UKPX, 24UKP-AR, 24UKPX-T, 18UKP-E, 18UKPX, 18UKP-AR, 18UKPX-T) 4-5 Outdoor Unit (RAS-24UA-E, 24UAX, 24UA-AR, 24UAX-T) 4-6 Outdoor Unit (RAS-18UA-E, 18UAX, 18UA-AR, 18UAX-T) 4-1 4-2 4-3 4-4 5. REFRIGERATION CYCLE DIAGRAM 5-1 RAS-24UKHP-E/24UAH-E 5-2 RAS-24UKP-E/24UA-E RAS-24UKPX/24UAX RAS-24UKP-AR/24UA-AR RAS-24UKPX-T/24UAX-T 5-3 RAS-18UKHP-E/18UAH-E, 78359/18UA-E 5-4 78359/18UA-E RAS-18UKPX/18UAX RAS-18UKP-AR/18UA-AR RAS-18UKPX-T/18UAX-T ­1­ TCTC Service Manual 24/18UKHP-E (EN) File No. CONTROL BLOCK DIAGRAM 6-1 RAS-24UKHP-E, 18UKHP-E 6-2 RAS-24UKP-E, 24UKPX, 24UKP-AR, 24UKPX-T 78359, 18UKPX, 18UKP-AR, 18UKPX-T 7. OPERATION DESCRIPTION 7-1 7-2 7-3 7-4 7-5 7-6 7-7 7-8 7-9 8-1 8-2 8-3 8-4 8-5 8-6 9-1 9-2 9-3 9-4 9-5 9-6 9-7 9-8 9-9 Outline of Air Conditioner Control Description of Operation Circuit ECO Mode HiPOWER Mode High-Temperature Limit Control Low-Temperature Limit Control Defrosting Operation Auto Restart Function Filter Check Lamp Safety Cautions Installation Diagram of Indoor and Outdoor Units Installation Indoor Unit Outdoor Unit Other Troubleshooting Procedure Basic Check Items Primary Judgement Self-Diagnosis by Remote Control (Check Code) How to Diagnose Faulty Part Troubleshooting for Indoor Unit Troubleshooting for Wiring (Interconnect cable and Serial Signal Wire) Troubleshooting for P. C. [. . . ] · Securely tighten the valve stem cap with torque in the following table: Gas side Gas side (Ø15. 88 mm) Gas side (Ø12. 7 mm) Liquid side (Ø6. 35 mm) Service port Tightening torque 65 to 80 N·m (6. 5 to 8. 0 kgf·m) 60 to 62 N·m (6. 0 to 6. 2 kgf·m) 16 to 18 N·m (1. 6 to 1. 8 kgf·m) 9 to 10 N·m (0. 9 to 1. 0 kgf·m) A 5 mm Terminal block Screw Earth line 4 mm Same as Gas side Earth line Cord clamp Power supply cord LN Screw Cord clamp Connecting cable · Hexagonel wrench : A (Unit : mm) Hexagonal wrench is required. A Power supply cord 10 10 10 10 70 RAS-18UKPX-T RAS-24UKPX-T 123 60 70 60 Earth line Connecting cable Fig. 8-5-7 Model Power source Maximum running current Plug socket & fuse rating Power cord RAS-18UKHP-E/ 78359/ RAS-18UKPX/ RAS-18UKP-AR RAS-24UKHP-E/ RAS-24UKP-E/ RAS-24UKPX/ RAS-24UKP-AR 50 Hz, 220 ­ 240V Single phase 16A 20A 18A 20A 50 Hz, 220V Single phase 16A 20A 18A 20A · 4 mm2 (H07RN-F or 245 IEC 66) or 3. 5 mm2 (AWG-12) CAUTION · Wrong wiring connection may cause some electrical parts burn out. · Be sure to comply with local codes on running the wire from outdoor unit to indoor unit (size of wire and wiring method etc. ) · Every wire must be connected firmly. NOTE: Connecting cable · Wire type : More than 1. 5 mm2 (H07RN-F or 245 IEC66) or 1. 3 mm2 (AWG-16) ­ 45 ­ TCTC Service Manual 24/18UKHP-E (EN) File No. Gas Leak Test Electric parts cover D C 8-6-3. Auto Restart Setting This product is designed so that, after a power failure, it can restart automatically in the same operating mode as before the power failure. Information Flare nut connections (indoor unit) Valve stem cap connection A The product was shipped with Auto Restart function in the off position. <How to Set the Auto Restart> · Press and hold down the TEMPORARY button for about 3 seconds. After 3 seconds, the electronic beeper makes three short beeps to tell you the Auto Restart has been selected. · To cancel the Auto Restart, follow the steps described in the section Auto Restart Function of the Owner's Manual. Flare nut connections (Outdoor unit) B Service cap connection Valve stem cap connection Fig. 8-6-1 · Check the flare nut connections, valve stem cap connections and service port cap connections for gas leak with a leak detector or soap water. 8-6-2. Test Operation To switch the TEST RUN (COOL) mode, press TEMPORARY button for 10 sec. The outdoor fan motor stops in the When the indoor heat exchanger temperature is high, the outdoor fan motor is stopped by the high-temperature limit Heating operation. The compressor is not turned on even The compressor is not turned on in the restart delay timer (3though the room temperature is in the minutes timer) operation. It is also not turned on after the range that the compressor is turned on. power supply is turned on because of this timer operation. The operation mode changes in the In Automatic operation, the room temperature is detacted every 15 minutes and the operation mode is changed Automatic operation. according to difference between the room temperature and the preset temperature. The Fan only operation continues in the When the room temperature is in the range (Preset temperature ± 1°C), the Fan only operation is selected. The ECO operation or Hi-POWER These operations do not work when the unit is in the Dry operation or Fan only operation. When [Hi POWER] button is pressed, the The display on the remote control does not change when display on the remote control does not [Hi POWER] button is pressed. However the microcomputer gives commands to change the preset temperature and air change at all. flow level. ­ 47 ­ TCTC Service Manual 24/18UKHP-E (EN) File No. [. . . ] 43T60035 Terminal Block, 4P 43T60036 Terminal Block, 3P, 30A 43T60037 Filter, Clamp 43T41313 Compressor, PH310X3-4MM 43T62014 Protector, Cord 43T62015 Protector, Cord 43T49011 Base, Spring A 43T49019 Spring, Buffer 43T49012 Base, Spring B 43T21306 Motor, Fan, AC220 ­ 240V 50Hz 43T20010 Fan, Propeller, 490 43T96001 Bushing 43T96004 Bushing, Cord 43T62013 Cover, E-Parts 43T52301 Switch, Magnet, CLK-35J 43T55016 Capacitor, 60MFD, 420V 43T55014 Capacitor, 3. 5MFD, 450V 43T96003 Clip, Cable 43T46482 Valve, 4way 43T43319 Coil, V-4way AC220 ­ 240V, VHV 43T69059 Sensor 43T69060 Sensor, TD 43T79004 Nipple, Drain 43T58301 Transformer, TT-05 43T69057 P. C. Board Assembly MCC-1275 43T47309 Tube, Capillary, 0. 8 Dia. ­ 74 ­ TCTC Service Manual 24/18UKHP-E (EN) File No. Outdoor Unit RAS-24UA-E, RAS-24UAX, RAS-24UAX-T, RAS-24UA-AR Location No. 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 Part No. Description Location No. [. . . ]