User manual LG LRS-276GPSSGQNG

[. . . ] OPERATION DESCRIPTION 7-1 Outline of Air Conditioner Control 7-2 Description of Operation Circuit 7-3 Hi POWER Mode 7-4 High-Temperature Limit Control 7-5 Low-Temperature Limit Control 7-6 Defrosting Operation 7-7 Auto Restart Function 7-8 Filter Check Lamp 7-9 Self-Cleaning function 7-10 Quiet Mode 7-11 Comfort Sleep mode ­1­ FILE NO. INSTALLATION PROCEDURE 8-1 8-2 8-3 8-4 8-5 8-6 8-7 8-8 9-1 9-2 9-3 9-4 9-5 9-6 9-7 9-8 9-9 Safety Cautions Installation Diagram of Indoor and Outdoor Units Installation Indoor Unit Outdoor unit How to Set Remote Control Selector Switch How to Use Drain Pump Kit of Option Others Troubleshooting Procedure Basic Check Items Primary Judgement Self-Diagnosis by Remote Control (Check Code) How to Diagnose Faulty Parts Troubleshooting for Indoor Unit Troubleshooting for Wiring (Interconnect Cable and Serial Signal Wire) Troubleshooting for P. C. Board Troubleshooting for Remote Control 9. PARTS REPLACEMENT 10-1 Indoor Unit 10-2 Outdoor Unit (RAS-24GAH-ES2, RAS-24GA-ES2) 10-3 Outdoor Unit (RAS-18GAH-ES2, RAS-18GA-ES2) 11. [. . . ] Connect the charge hose from the manifold valve to the service port of the gas side packed valve. Connect the charge hose to the port of the vacuum pump. Open fully the low pressure side handle of the gauge manifold valve. Operate the vacuum pump to start for evacuating. Perform evacuating for about 15 minutes if the piping length is 20 meters. (15 minutes for 20 meters) (Assuming a pump capacity of 27 liters per minute. ) Then confirm that the compound pressure gauge reading is ­101 kPa (­76 cmHg). Close the low pressure side valve handle of gauge manifold. Open fully the valve stem of the packed valves (both sides of Gas and Liquid). Remove the charging hose from the service port. Securely tighten the caps on the packed valves. CAUTION · Do not apply excess torque, otherwise the nut may crack depending on the conditions. · Tightening torque of flare pipe connections The operating pressure of R-410A is higher than that of R-22 (Approx. It is therefore necessary to tighten firmly flare pipe connecting sections (which connect the indoor and outdoor units) up to the specified tightening torque. (Both units are set to A setting before shipment. ) · The remote control signal is not recived when the indoor unit setting is different from the remote control one. Set the remote control selector switch with the indoor unit. 1) Turn the circuit breaker of the main power switch off before setting the selector switch. Set the remote control selector switch with the remote control [B] is indicated on the liquid crystal display when setting remote control selector switch to B. [A] is not indicated on the display even if the selector switch is set to A. 1) Load the remote control with the batteries. 2) Press the [CHECK] button using something with sharp point. (The preset temperature on the remote control changes to [00]. ) 3) Press the [MODE] button while pressing the [CHECK] button, [B] is indicted at the right of the present temperature display. · To reset the switch to the [A] setting, press the [MODE] button again while pressing the [CHECK] button. Fig. 8-6-1 3) Select the terminal of selector switch from [A position] to [B position]. [MODE] button C INSTALL A B REMOCON [CHK] button F Fig. Confirm that the indoor unit can operate with the new setting. Fig. [. . . ] Indoor Unit (E-Parts Assy) Location No. 43T69560 43T69561 43T69562 43T69563 43T50004 43T60002 43T62003 Description PC BOARD (FOR RAS-24GFHP-ES2) PC BOARD (FOR RAS-24GFP-ES2) PC BOARD (FOR LRS-276GPSSGQNG) PC BOARD (FOR RAS-18GFP-ES2) SENSOR; HEAT EXCHANGER TERMINAL BLOCK; 3P CORD CLAMP Location No. 43T69315 43T50302 43T69560 43T69561 43T69562 43T69563 43T08349 Description DISPLAY UNIT TEMPERATURE SENSOR PC BOARD (FOR RAS-24GFHP-ES2) PC BOARD (FOR RAS-24GFP-ES2) PC BOARD (FOR LRS-276GPSSGQNG) PC BOARD (FOR RAS-18GFP-ES2) SWITCH COVER ­ 76 ­ FILE NO. 201 202 203 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 Part No. [. . . ]