ECR International Dunkirk DCBF-125, Installation, Operation And Maintenance Manual

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Verify contents received ................................................2
Table of contents ...........................................................3
1 - Important Information .............................................4
2A - Physical Data .........................................................5
2B - Component Listing .................................................8
3 - Introduction ...........................................................12
4 - Locating Boiler .......................................................13
5 - Combustion Air And Vent Piping .............................15
5.1 General ............................................................... 15
5.2 Removal of Existing Boiler From Common Vent System
............................................................................... 15
5.3 Definitions ........................................................... 16
5.4 Approved Venting Materials ................................... 17
5.5 Vent Termination .................................................. 17
5.6 Coaxial Venting Instructions ................................... 18
5.7 Coaxial Vent Screw Placement ............................... 18
5.8 Twin Pipe Systems ................................................ 20
5.9 Securing Twin Pipe Polypropylene Venting ............ 21
5.10 (3" /80 mm Only) Flexible Vent System .......... 24
5.11 Condensate Piping .............................................. 26
6 - Hydronic Piping ......................................................27
6.1 General ............................................................... 27
6.2 Special Conditions ................................................ 27
6.3 Safety Relief Valve and Air Vent .............................. 28
6.4 Trim Piping .......................................................... 28
6.5 System Piping ...................................................... 28
6.6 External Optional Low Water Cut Off .......................30
6.7 Central Heating System .........................................32
6.8 Domestic Hot Water Mode ......................................32
6.9 Frost Protection Mode ............................................32
6.10 Pump Protection .................................................32
7 - Gas Supply Piping ..................................................33
7.1 General ...............................................................33
7.2 Leak Check Gas Piping ..........................................34
7.3 Gas Orifice ...........................................................34
8 - Electrical Connections ............................................35
8.1 General ...............................................................35
8.2 Install Room Thermostat ........................................35
8.3 Electrical Connections ............................................35
8.4 Access To Connection Block ....................................36
8.5 Main Supply Connection.........................................36
8.6 Install Room End Switch ........................................37
8.7 Optional Electrical Connections ...............................37
8.8 Indirect Storage Tank ............................................38
8.9 Management of 0-10V Input ...................................38
9 - Start Up Procedure .................................................39
9.1 Central Heating System Connections - Heat Only .. 39
9.2 Central Heating System Connections - Combi ....... 39
9.3 System Start Up ...................................................40
9.4 Fill Condensate Trap with Water ..............................40
9.5 Control Panel .......................................................41
9.6 Prior to Commissioning: .......................................42
9.7 Commissioning For The First Time: .........................42
9.8 Automatic Calibration Function ...............................42
9.9 Manual Calibration Function: ..................................43
9.10 De-Aeration Function ...........................................43
9.11 Commission Set Up (Gas) - Changing The Type Of Gas
...............................................................................43
9.12 Chimney Sweep Function (CO
2
Adjust) ............... 44
9.13 Combustion Adjustment Function (CO
2
%) .......... 44
9.14 Check Firing Rate ................................................44
9.16 Description Of Parameters: Factory Settings ....... 45
9.15 Parameter Settings .............................................45
9.16 Description Of Parameters: Factory Settings conti.
...............................................................................46
9.17 Adjusting Maximum Heating Power ........................47
10 - Operating instructions .........................................48
10.1 Testing For Gas Leaks And Purging The Gas Supply
...............................................................................48
10.2 Boiler Operation ..................................................48
10.3 Central Heating Mode ..........................................48
10.4 Domestic Hot Water Mode ....................................48
10.5 Frost Protection ..................................................48
10.6 Pump ................................................................48
10.7 Low Water Pressure Sensor (Internal) .............. 48
11 - General Maintenance and Cleaning.......................49
11.1 Beginning of Each Heating Season .........................49
11.2 Maintenance And Routine Servicing ....................... 50
11.3 Component Replacement And Cleaning .............. 50
11.4 Draining the Boiler .............................................. 51
11.5 Draining the Heating Circuit.................................. 51
11.6 Hydraulic Unit (DHW) .......................................... 52
11.7 Cleaning The Cold Water Filter .............................. 52
11.8 Final Commissioning ............................................ 52
11.9 Final Assembly ................................................... 52
11.10 User Information ...............................................53
11.11 Safety Flue Thermostat - DO NOT disable this safety
device. ..........................................................................53
11.12 Flue Pressure Switch (125-150 Only) DO NOT disable
this safety device. ...........................................................53
11.13 Replacement Parts .............................................53
12 - Ratings And Capacities .........................................54
12.1 Ratings and Capacity ...........................................54
12.2 Domestic Hot Water Specifications ........................54
12.3 High Altitude Ratings ........................................... 55
12.4 High Altitude Chart .............................................. 55
13 - Trouble Shooting ..................................................56
13.1 Error Messages And Resetting The Boiler ............ 56
13.2 Anomalies Table for the Installer - Use this table to
report the anomaly values. .......................................... 58
14 - Glossary ...............................................................59
Appendix A - Wiring Diagrams ............................... 61-64
Check Out Certificate ...................................................67
TABLE OF CONTENTS
240012879 REV A, [01/31/2020]