Contents 3
Contents
Safety Information
4
1. About the Boiler
7
1.1 Items Included
7
1.2 Accessories
7
1.3 Specifications
8
1.4 Components
10
1.5 Dimensions
12
1.6 Rating Plate
13
2. Installing the Boiler
14
2.1 Choosing an Installation Location
14
2.2 Mounting the Boiler to the Wall
16
3. Installing the System Piping
17
3.1 Installing a Space Heating System
17
3.2 Installing a Domestic Hot Water (DHW) System
20
3.3 Connecting the Condensate Drain
23
3.4 System Fill Connection
25
3.5 Testing the Water System
26
3.6 Examples of System Applications
26
4. Connecting the Gas Supply
31
4.1 Gas Pipe Sizing Tables
33
4.2 Measuring the Inlet Gas Pressure
34
5. Venting the Boiler
36
5.1 Selecting a Vent Type
36
5.2 Selecting Vent Pipe Materials
40
5.3 Measuring Vent Length
40
5.4 Terminating the Vent
41
6. Setting the DIP Switches
43
6.1 PCB DIP Switches
43
6.2 Front Panel Dip Switches
44
7. Connecting the Power Supply
45
8. Installation Check list
46
9. Operating the Boiler
49
9.1 Turning the Boiler On or Off
49
9.2 Adjusting the Temperature
49
9.3 Viewing Basic Information
50
9.4 Setting the Operation Mode
51
9.5 Setting the Parameters
51
9.6 Resetting the Boiler
57
10. Appendixes
58
10.1 Gas Conversion
58
10.2 Wiring Diagram
64
10.3 Ladder Diagram
65
10.4 Component Assembly Diagrams and Parts Lists
66
10.5 Outdoor Temperature Sensor (Optional)
74
10.6 Outdoor Reset Control
(Available with Optional Outdoor Temperature Sensor)
74
