2
11.2. Indoor/Outdoor Unit Installation Diagram ---------- 24
11.3. Indoor Unit -------------------------------------------------25
11.4. Outdoor Unit-----------------------------------------------28
12 Operation and Control-----------------------------------------31
12.1. Basic Function --------------------------------------------31
12.2. Water Pump -----------------------------------------------32
12.3. Pump Down Operation ---------------------------------33
12.4. Flow Switch------------------------------------------------33
12.5. Indoor Unit Safety---------------------------------------- 34
12.6. Auto Restart Control-------------------------------------34
12.7. Indication Panel-------------------------------------------34
13 Protection Control---------------------------------------------- 35
13.1. Protection Control For All Operations--------------- 35
13.2. Protection Control For Heating Operation ---------36
14 Servicing Mode --------------------------------------------------37
14.1. Test Run---------------------------------------------------- 37
14.2. Proper Pump Down Procedure -----------------------37
14.3. How To Adjust Water Flow Rate----------------------37
15 Maintenance Guide--------------------------------------------- 38
16 Troubleshooting Guide----------------------------------------40
16.1. Refrigeration Cycle System ---------------------------40
16.2. Relationship Between The Condition Of The
Air-to-Water Heatpump Indoor And Outdoor
Units And Pressure And Electric Current ---------- 41
16.3. Breakdown Self Diagnosis Function ----------------42
16.4. Error Codes Table----------------------------------------43
16.5. Self-diagnosis Method ----------------------------------44
17 Disassembly and Assembly Instructions---------------70
17.1. To Remove Front Plate ---------------------------------70
17.2. To Remove Cabinet-------------------------------------- 70
17.3. To Remove Pressure Gauge--------------------------71
17.4. To Remove Control Panel------------------------------71
17.5. To Remove Electronic Controller Board and
Transformer------------------------------------------------72
17.6. To Remove RCCB --------------------------------------- 72
17.7. To Remove Pressure Relief Valve, Flow
Switch and Water Pump--------------------------------73
18 Technical Data----------------------------------------------------75
18.1. Operation Characteristics------------------------------75
18.2. Heating Capacity Table ---------------------------------77
18.3. Hydraulic Pump Performance-------------------------79
19 Exploded View and Replacement Parts List -----------80
19.1. WH-SD24BE5-1 WH-SD30BE5-1 ------------------ 80
19.2. WH-UD24BE5-1 WH-UD30BE5-1 ------------------ 82