Table Of Contents - Dunkirk DCBF-100 Manual

Verify contents received ................................................2

Table of contents ...........................................................3

Physical Data.................................................................4
1 - Important Information .............................................7
2 - Introduction .............................................................8
2.3 Requirements for Commonwealth of Massachusetts
2.4 Use of Carbon Monoxide Monitor. ............................. 8
2.5 Designated Use ..................................................... 8
2.6 The unit MUST NOT: .............................................. 8
2.7 Operational Features .............................................. 8
3 - Component Listing ...................................................9
4 - Locating Boiler .......................................................15
4.1 Boiler Location Considerations ..............................15
4.2 Floor Location .....................................................15
4.3 Clearances ..........................................................16
5 - Combustion Air And Vent Piping .............................17
5.1 General ...............................................................17
5.2 Removal of Existing Boiler From Common Vent System18
5.3 Definitions ...........................................................18
5.4 Approved Venting Materials ...................................19
5.5 Vent Termination ..................................................19
5.6 Coaxial Venting Instructions ...................................21
5.7 Coaxial Vent Screw Placement - See Figure 5-3 ....
5.8 Twin Pipe Systems ................................................23
5.9 Securing Twin Pipe Polypropylene Venting ............
5.10 (3" /80 mm Only) Flexible Vent System ..........
5.11 Condensate Piping ..............................................29
6 - Hydronic Piping ......................................................30
6.1 General ...............................................................30
6.2 Special Conditions ................................................30
6.3 Safety Relief Valve and Air Vent ..............................31
6.4 Trim Piping ..........................................................31
6.5 System Piping ......................................................31
6.6 External Optional Low Water Cut Off ......................33
6.7 Manufacturer Recommendation - Strainer ................34
6.8 Central Heating System .........................................35
6.9 Domestic Hot Water Mode ......................................35
6.10 Frost Protection Mode ..........................................35
6.11 Pump Protection .................................................35
7 - Gas Supply Piping ..................................................36
7.1 General ...............................................................36
7.2 Gas Pipe Recommendations ...................................37
7.3 Leak Check Gas Piping ..........................................39
7.4 Gas Orifice - See Figure 7-2 ...................................39
8 - Electrical Connections ............................................40
8.1 General ...............................................................40
8.2 Install Room Thermostat .......................................40
8.3 Electrical Connections ............................................40
8.4 Access To Connection Block ...................................41
8.5 Main Supply Connection.........................................41
8.6 Install Room End Switch ........................................42
8.7 Optional Electrical Connections ...............................42
8.8 Indirect Storage Tank ............................................44
8.9 Management of 0-10V Input ...................................44
TABLE OF CONTENTS
9 - Start Up Procedure .................................................46
9.1 Central Heating System Connections - HEAT ONLY ...46
9.2 Central Heating System Connections - Combi ...........46
9.3 System Start Up ...................................................47
9.4 Fill Condensate Trap with Water .............................47
8 9.5 Control Panel .......................................................48
9.6 Prior to Commissioning: ........................................49
9.7 Commissioning For The First Time: .........................49
9.8 Automatic Calibration Function ...............................49
9.9 Manual Calibration Function: ..................................50
9.10 De-Aeration Function ...........................................50
9.11 Commission Set Up (Gas) - Changing The Type Of Gas
...............................................................................50
9.12 Chimney Sweep Function ....................................51
9.13 Combustion Adjustment Function (CO2%) ..........
9.14 Check Firing Rate ................................................51
9.15 Parameter Settings .............................................52
9.16 Description Of Parameters: Factory Settings .......
9.17 Adjusting Maximum Heating Power ........................54
10 - Operating instructions .........................................55
10.1 Testing For Gas Leaks And Purging The Gas Supply
...............................................................................55
10.2 Boiler Operation ..................................................55
22
10.3 Central Heating Mode ..........................................55
10.4 Domestic Hot Water Mode ....................................55
24
10.5 Frost Protection ..................................................56
27
10.6 Pump ................................................................56
10.7 Low Water Pressure Sensor (Internal) ...............
11 - General Maintenance and Cleaning.......................57
11.1 Beginning of Each Heating Season .........................57
11.2 Maintenance And Routine Servicing .......................58
11.3 Component Replacement And Cleaning ..............
11.4 Draining the Boiler ..............................................59
11.5 Draining the Heating Circuit .................................59
11.6 Hydraulic Unit (DHW) ..........................................60
11.7 Cleaning The Cold Water Filter ..............................60
11.8 Final Commissioning ............................................60
11.9 Final Assembly ...................................................60
11.10 User Information ...............................................61
11.11 Safety Flue Thermostat. .......................................61
11.12 Flue Pressure Switch. ...........................................61
11.13 Replacement Parts ............................................61
12 - Ratings And Capacities .........................................62
12.1 Ratings and Capacity ...........................................62
12.2 Domestic Hot Water Specifications ........................62
12.3 High Altitude Ratings ...........................................63
12.4 High Altitude Chart ..............................................63
12.5 Available Pump Head For Central Heating ...............64
13 - Trouble Shooting ..................................................65
13.1 Error Messages And Resetting The Boiler ................65
13.2 Anomalies Table for the Installer - Use this table to
report the anomaly values. ..........................................67
14 - Glossary ...............................................................68
Appendix A - Wiring Diagrams .....................................70
3
240013375 REV A, [07/01/2021]
51
52
56
58