Contents
1. Safety Information 9
1.1 Safety Definitions 9
1.2 Safety Symbols
9
1.3 Symbols Used in the Instructions
9
1.4 Safety Precautions
9
2. Product Information 13
2.1 Product Information Items 13
2.2 Components
14
3. Technical Data 16
3.1 General Specifications 16
3.2 Dimensions
18
4. System Details 19
4.1 Setting the DIP Switches 19
4.1.1 PCB DIP Switches 19
4.1.2 Front Panel DIP Switches 20
4.2 Measuring the Inlet Gas Pressure
21
4.2.1 Gas Pipe Sizing Tables 23
4.3 Gas Conversion
25
4.4 The Front Panel
31
4.4.1 LCD Display 31
4.4.2 Buttons 32
4.4.3 Turning the Boiler On or Off 34
4.4.4 Normal Operation 34
4.4.5 Error Display and RESET 36
4.4.6 Adjusting the Space Heating Temperature 36
4.4.7 Adjusting the DHW Temperature 37
4.4.8 Viewing Basic Information (For Homeowner) 38
4.4.9 Error occurrence history display 40
4.4.10 Information display (for servicer) 41
4.4.11 Special Parameter mode 48
4.4.12 Resetting the Boiler (Factory Reset) 60
4.5 Version Display 61
4.6 Error Code
61
4.7 Ladder Diagram
62
4.8 Electrical Diagnostic Point & Wiring Diagram
63
4.9 Key Components Description
65
4.9.1 PCB 65
4.9.2 High Limit Switch 66
4.9.3 Thermistor 67
4.9.4 Fan Motor 68
4.9.5 Flame Rod Assembly 69
4.9.6 Ignition Transformer 70
4.9.7 APS 71
4.9.8 Main Gas Valve 72
4.9.9 Burner 73
4.9.10 Primary Heat Exchanger 74
4.9.11 Secondary Heat Exchanger 75
4.9.12 Water Pressure Sensor 76
4.9.13 Dual Venturi 77
5. Troubleshooting 78
5.1 Error code classification 78
5.2 Error code classification
79
5.2.1 001Error 83
5.2.2 003Error 85
5.2.3 004Error 91
5.2.4 012Error 92
5.2.5 016Error 96
5.2.6 030Error 98
5.2.7 046Error 100
5.2.8 047Error 100
5.2.9 060Error 101
5.2.10 109Error 103
5.2.11 110Error 105
5.2.12 205Error 107
5.2.13 218Error 109
5.2.14 271Error 111
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