User manual LG LSC21943ST

[. . . ] WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPECIFICATION OF ELECTRICAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REFRIGERANT R410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CONTROL BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] When [SWING] button is pressed, it stops swinging. In [K] zone, time counting is interrupted and the operation is held. When [I] zone is detected, the timer is cleared and the operation returns to the normal operation. (°C) 7 6 5 J 8-8. Filter sign display (1) The operation time of the indoor fan is calculated, the filter lamp (Orange) on the display part of the main unit goes on when the specified time (240H) has passed. When a wired remote controller is connected, the filter reset signal is sent to the remote controller, and also it is displayed on LCD of the wired remote control. (2) When the filter reset signal has been received from the wired remote control after [FILTER] lamp has gone on or when the filter check button (Temporary button) is pushed, time of the calculation timer is cleared. In this case, the measurement time is reset if the specified time has passed, and display on LCD and the display on the main unit disappear. Remarks: [FILTER] goes on I K A Fig. 8-5-1 In heating operation, the freeze-preventive control works if 4-way valve is not exchanged and the condition is satisfied. Remarks: Tcj : Indoor heat exchanger sensor temperature 8-6. High-temp release control The heating operation is performed as follows based on the detected temperature of Tc sensor. · When [M] zone is detected, the commanded frequency is decreased from the real operation frequency. Motions The unit starts to operate. 0 Hi POWER FILTER PRE. D 3S The unit beeps three times and continues to operate. ¡ The orange lamp is on. ¡ After approx. three seconds, The lamp changes from orange to green. TEMPORARY button If the unit is not required to operate at this time, push [TEMPORARY] button once more or use the remote control to turn it off. When the unit is in operation Operation Push [TEMPORARY] button for more than three seconds. Motions The orange lamp is on. The unit stops operating. 0 Hi POWER FILTER PRE. D 3S The unit beeps three times. If the unit is required to operate at this time, push [TEMPORARY] button once more or use the remote control to turn it on. ¡ The orange lamp is turned off. ¡ After approx. three seconds, TEMPORARY button · While this function is being set, if the unit is in operation, the orange lamp is on. 8-10. Filter Check Lamp When the elapsed time reaches 1000 hours, the filter check lamp indicates. After cleaning the filters, turn off the filter check lamp. How to turn off filter check lamp (1) Press [FILTER] button on the remote control. (2) Push [TEMPORARY] button on the indoor unit. Note: If [TEMPORARY] button is pushed while the filter check lamp is not indicating, the indoor unit will start the Automatic Operation. 8-9-3. Power failure during timer operation When the unit is in Timer operation, if it is turned off because of power failure, the timer operation is cancelled. [. . . ] : Remove the Drain band from the Front panel. : Cut away the Opening base for piping from Front panel and keep parts. Remarks Drain band Drain panel 3) Open 3 Cap screws and remove the screws. Cap screws Front Panel 4) Remove 5 screws fixing the Front panel. Screws 5) Remove the hooks of the Panel LED nearly side from the Drain pan. (Continue) ­ 28 ­ FILE NO. 2 Part name Front panel Procedures 6) Remove both side hooks and remove the Front panel by turn to air inlet part direction. <How to install the Front panel> 1) In case of the Drain hose installation through the Front panel, install the opening base for piping in the Back body by a screw (M4 x 12). [. . . ]