LG Electronics LG3ZMSS290 Owners Guide

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Part 3. Basic Control

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Only for training and service purposes

LGE Internal Use Only

Part 3. Basic Control

1. Normal operation..............................................................................................................33

2 Compressor control .........................................................................................................33

3. EEV( Electronic Expansion Valve) control ....................................................................33

4. Oil return control .............................................................................................................34

5. Defrost control .................................................................................................................34

6. Protection control ............................................................................................................35

6.1 High pressure protection control ..........................................................................35

6.2 Low pressure protection control ..........................................................................35

6.3 Discharge temperature control ...........................................................................35

6.4 Input Current control ...........................................................................................35

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LG Electronics LG3ZMSS290 Quad Zone Mini Split System with 23,000 Total BTUs, Heat Options, Hot Start,