2
13.6. Timer Control---------------------------------------------- 39
13.7. Auto Restart Control------------------------------------- 40
13.8. Indication Panel------------------------------------------- 40
14 Operation Control----------------------------------------------- 41
14.1. Compressor Operation Frequency ------------------ 41
14.2. Deice Operation ------------------------------------------ 41
15 Protection Control ---------------------------------------------- 42
15.1. Time delay safety control------------------------------- 42
15.2. Total running current control--------------------------- 42
15.3. IPM (Power transistor) prevention control --------- 42
15.4. Compressor Overheating Prevention Control----- 42
15.5. Low Pressure Prevention Control (Gas
Leakage Detection)-------------------------------------- 43
15.6. 4-Way Valve Failure Protection Control ------------ 43
15.7. Protection Control for Cooling & Soft Dry
Operation--------------------------------------------------- 43
15.8. Protection Control for Heating Operation ---------- 44
16 Servicing Mode -------------------------------------------------- 45
16.1. Auto OFF/ON Button ------------------------------------ 45
16.2. Remote Control Button --------------------------------- 46
17 Troubleshooting Guide---------------------------------------- 47
17.1. Refrigeration Cycle System --------------------------- 47
17.2. Breakdown Self Diagnosis Function ---------------- 49
17.3. Self Diagnosis Function -------------------------------- 50
17.4. Self-diagnosis Method ---------------------------------- 53
18 Disassembly and Assembly Instructions --------------- 78
18.1. Indoor Electronic Controllers, Cross Flow Fan
and Indoor Fan Motor Removal Procedures ------ 78
18.2. Outdoor Unit Removal Procedure-------------------- 82
19 Technical Data---------------------------------------------------- 84
19.1. Operation Characteristics (CU-2RE15MBE) ------ 84
19.2. Operation Characteristics (CU-2RE18MBE) ------ 92
20 Exploded View and Replacement Parts List --------- 104
20.1. Indoor Unit ----------------------------------------------- 104
20.2. Outdoor Unit --------------------------------------------- 106
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