User manual LG LSC20913TT

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Manual abstract: user guide LG LSC20913TT

Detailed instructions for use are in the User's Guide.

[. . . ] WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPECIFICATIONS OF ELECTRICAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REFRIGERANT R410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDOOR UNIT CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] * If group configuration or address is not correct, the unit enters auto address setting mode automatically for address re-setting. Overcurrent protection circuit operation of indoor unit fan driver 3. Check indoor unit heat exchanger (TC/TCJ). Judging follower unit when header unit is E03, L03, L07 or L08 2. Check indoor unit EEPROM and insertion into socket. Check indoor unit boards. E04 Serial signal from outdoor unit does OFF not reach indoor unit. (auto reset) · Wrong wire connection · Failure of outdoor unit serial transmitter · Failure of indoor unit serial receiver Duplication of indoor unit address Duplication of header indoor unit Group line in individual indoor unit Indoor unit group address not set Indoor unit capacity not set External interlock alarm input Failure of indoor unit DC fan OFF Indicated when an error is detected E08 L03 L07 L08 L09 L30 P12 Indicated when an error is detected OFF OFF OFF Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected P19 Failure of 4-way valve system · Indoor unit heat exchange temperature lowers after HEAT operation starts. Indoor unit OFF during alarming to other indoor units Improper mounting, disconnection or short-circuit of indoor unit heat exchange sensor TCJ Improper mounting, disconnection or short-circuit of indoor unit heat exchange sensor TC Improper mounting, disconnection or short-circuit of indoor unit room temp. sensor TA Failure of indoor unit EEPROM · EEPROM access error Communication error between header and follower indoor units OFF (auto reset) Indicated when an error is detected P31 OFF (follower units) (auto reset) OFF (auto reset) OFF (auto reset) OFF (auto reset) OFF (auto reset) OFF (auto reset) Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected F01 F02 F10 F29 E18 ­ 33 ­ Failure mode detected by outdoor unit (Representative codes) · The check code used varies depending on the combination with the outdoor unit. Check code H01 Diagnosis function Possible causes Air conditioner status OFF Compressor breakdown · Compressor stops due to operating frequency decrease. · Overcurrent protection circuit is activated after a certain time from compressor startup. Failure of current detect circuit · Large AC current even during compressor OFF · Phase loss in power supply Low-pressure switch ON (applicable models) COOL : 30 seconds HEAT : 10 minutes Other outdoor unit errors · CDB-IPDU communication error (connector disconnection) · Abnormal heatsink temperature (over specified value) Phase detection protection circuit activated (normal models) OFF Conditions Indicated when an error is detected Indicated when an error is detected Judgment and action 1. "01" (order of error log) is displayed. · The address of faulty indoor unit is displayed in the UNIT No. / buttons displays stored error log sequentially. Check code "01" shows the latest error, and "04" shows the oldest. Note Do not press [CL] as this button clears entire error log of indoor unit. After checking the error log, press [TEST] to return to the normal indication. A B C Numbers appearing on the LCD <Seven-segment display> Hexadecimal number ­ 35 ­ TCC-LINK Central Control Remote Controller (TCB-SC642TLE) (1) Checking When an error occurs in the air conditioner, a Indication of unit number check code and an indoor unit number appear on UNIT No. Check code is displayed only during operation. If indication disappears, check errors following "Checking Error Log" below. Indication of alarm CHECK (2) Checking Error Log When an error occurs in the air conditioner, error log can be checked following the steps below. Error log can be checked in both operation ON and OFF states. A Press [SET] and [TEST] at the same time for 4 seconds or more. B Indication of "SERVICE CHECK" and UNIT No. [. . . ] Address Setting When determining indoor unit addresses with wiring completed without piping construction (Manual setting by remote controller) <Address setting procedure> Connect a remote controller to the indoor unit whose address you want to set one to one. Turn ON the power. 1 Press , , and on the R/C simultaneously for 4 seconds or more. with buttons. Wiring example of 2 refrigerant systems (Solid line: wiring, broken line: refrigerant piping) O/U O/U Refrigerant 2 Set code line address 3 (Power cable only) (Power cable only) Set a refrigerant line address with buttons. Press Indication on the LCD shows normal operation. [. . . ]

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