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Dunkirk DCB-165 - User Manual

Dunkirk DCB-165
139 pages
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Manufactured by:
ECR International Inc.
2201 Dwyer Avenue, Utica, NY 13501
Tel. 800 325 5479
www.ecrinternational.com
DCB-100
DCC-115
DCB-125
DCC-150
DCB-165
DCC-205
CONDENSING
WALL MOUNTED
GAS FIRED BOILER

Table of Contents

Other manuals for Dunkirk DCB-165

Questions and Answers

  • T
    Tammy DawsonAug 21, 2025
    What to do if my Dunkirk DCB-165 has ignition failure?
    • R
      Ryan HessAug 21, 2025
      If your Dunkirk Boiler experiences ignition failure, begin by inspecting the condensate trap for proper operation. Then, check the sensing electrode, spark electrode, and cable. Ensure there is no flue recirculation and verify electrical continuity between the burner and the ground. Examine the gas orifice and gas pressure. If necessary, perform automatic and manual calibration functions.
  • S
    Sarah ClarkSep 3, 2025
    How to fix OT Communication Failure in Dunkirk DCB-165?
    • M
      Mrs. Joanne JenningsSep 3, 2025
      If your Dunkirk Boiler displays an OT Communication Failure, check the OT connection. Remove power, reconnect the OT connections, and if the problem persists, replace the service key.
  • M
    Matthew ClineSep 1, 2025
    What to do if there is no circulation of water in Dunkirk Boiler?
    • P
      Pamela WalkerSep 1, 2025
      If your Dunkirk Boiler has no water circulation and control is performed via temperature sensor, check for correct water circulation and pump operation. Also, check the correct connection of the NTC sensor on the pipe.
  • D
    Douglas ShortAug 30, 2025
    Why did the thermo fuse trip in my Dunkirk Boiler?
    • V
      Vincent NelsonAug 31, 2025
      If the thermo fuse has tripped in your Dunkirk Boiler due to over temperature, or if the wire harness is disconnected from the thermo fuse or the board, or if the wire harness is cut, check the thermo fuse and ensure correct water circulation and pump operation. Also, check the status of the primary exchanger. Consider replacing the heat exchanger. Verify the wire harness installation and its continuity.
  • A
    Amanda SmithAug 29, 2025
    What to do if NTC flue sensor tripped in Dunkirk DCB-165?
    • P
      paulgibsonAug 29, 2025
      If the NTC flue sensor in your Dunkirk Boiler has tripped due to over temperature, check the thermostat and ensure correct water circulation and pump operation. Also, check the status of the primary exchanger.
  • M
    Mallory RogersAug 27, 2025
    How to fix low hydraulic pressure in Dunkirk Boiler?
    • J
      Joshua DuranAug 27, 2025
      If the hydraulic pressure in your Dunkirk Boiler is too low, refill the heating system by opening the cold water tap.
  • L
    Lauren MonroeAug 26, 2025
    What to do if hydraulic pressure is too high in Dunkirk DCB-165?
    • C
      carriereyesAug 27, 2025
      If the hydraulic pressure in your Dunkirk Boiler is too high, relieve the pressure using the relief valve or by draining the system. Ensure that the water feed is operating correctly.
  • B
    Bryan DickersonAug 25, 2025
    How to fix combustion test alarm during calibration of Dunkirk DCB-165?
    • R
      rebecca52Aug 25, 2025
      If your Dunkirk Boiler's combustion test triggers an alarm during commissioning or calibration, examine the flame sensor. Check for any obstructions in the flue pipe and look for recirculation issues. Verify the gas pressure, gas orifice, and gas quality. You may need to perform automatic and manual calibration functions.
  • J
    Joseph DanielAug 23, 2025
    What to do if safety thermostat tripped in Dunkirk Boiler?
    • D
      dominic32Aug 23, 2025
      If the safety thermostat has tripped on your Dunkirk Boiler due to over temperature, which may be caused by a blocked pump or air in the heating circuit, check the safety thermostat and its cable. Also, verify the correct circulation of water and the pump.

Summary

IMPORTANT INFORMATION

Safety Information

Provides critical safety warnings and precautions for installation and operation.

COMPONENT LISTING

LOCATING BOILER

Wall Mounting

Provides instructions and considerations for mounting the boiler on a wall.

COMBUSTION AIR AND VENT PIPING

Vent Termination

Specifies requirements and guidelines for terminating the boiler's vent system.

Coaxial Venting Instructions

Provides detailed instructions for installing coaxial venting systems.

Condensate Piping

Provides instructions on connecting the condensate drain for safe and proper operation.

HYDRONIC PIPING

External Optional Low Water Cut Off

Explains the installation and wiring of an optional low water cutoff device.

GAS SUPPLY PIPING

Gas Pipe Recommendations

Provides guidance on selecting and installing appropriate gas piping for optimal operation.

Leak Check Gas Piping

Details the procedure for performing leak checks on gas piping connections.

ELECTRICAL CONNECTIONS

START UP PROCEDURE

System Start Up

Guides through the initial system start-up process, including filling and purging.

Fill Condensate Trap with Water

Explains the critical step of filling the condensate trap before boiler operation.

Commissioning For The First Time

Outlines the procedure for first-time boiler commissioning and gas type identification.

Automatic Calibration Function

Details the steps for the automatic calibration process to optimize boiler performance.

Manual Calibration Function

Guides the user through manual calibration adjustments for combustion parameters.

De-Aeration Function

Explains the de-aeration process to remove air from the heating circuit.

Commission Set Up (Gas) - Changing The Type Of Gas

Details how to set up the boiler for different gas types like Natural Gas or LPG.

Combustion Adjustment Function (CO2%)

Guides on adjusting CO2% for optimal combustion performance.

Adjusting Maximum Heating Power

Explains how to adjust the boiler's maximum heating power output.

OPERATING INSTRUCTIONS

Testing For Gas Leaks And Purging The Gas Supply

Details the procedure for testing gas leaks and purging the gas supply.

GENERAL MAINTENANCE AND CLEANING

Maintenance And Routine Servicing

Details regular servicing procedures and checks for maintaining peak boiler efficiency.

Component Replacement And Cleaning

Provides instructions for cleaning and replacing key boiler components.

Final Commissioning

Guides through the final steps of commissioning the boiler system after installation.

RATINGS AND CAPACITIES

TROUBLE SHOOTING

Error Messages and Resetting the Boiler

Lists common error codes, their meanings, and procedures for resetting the boiler.

Error Messages and Resetting the Boiler - continued

Continues the list of error messages and troubleshooting steps for the boiler.

Anomalies Only Displayed in the Fault History

Lists anomalies that appear specifically in the fault history log.

Anomalies Table for the Installer

A table for installers to record and analyze anomaly codes and system status.

IMPORTANT SAFETY INFORMATION

LABOR SAVING PIPING MANIFOLDS; NEAR BOILER PIPING CONNECTIONS

GENERAL INFORMATION - HYDRONIC PIPING

OPTIONAL EQUIPMENT

APPLICATION TABLE - INDIRECT HOT WATER TANK PERFORMANCE CHART

LOW WATER CUTOFF - Heating Only and Combi Boilers

ERROR CODE TABLE

Initial Fault Finding Checks

Lists initial checks to perform when troubleshooting boiler errors.

TROUBLESHOOTING CHART

Central Heating Troubleshooting

Provides a flowchart for diagnosing and resolving issues in the central heating system.

Domestic hot water Troubleshooting

Offers a troubleshooting flowchart for diagnosing and resolving domestic hot water system issues.

FAULT SOLUTION SECTIONS

Fault Finding Section A

Details troubleshooting steps for power supply and PCB issues.

Fault Finding Section B

Covers troubleshooting for pump and wiring related to the PCB.

Fault Finding Section C

Addresses issues related to fan connections, winding, and PCB.

Fault Finding Section D

Addresses troubleshooting for temperature sensors and potential replacements.

Fault Finding Section E

Guides on troubleshooting gas at the burner and potential gas valve or PCB issues.

Fault Finding Section F

Covers troubleshooting for ignition, electrodes, and condensate traps.

Fault Finding Section G

Details troubleshooting for gas supply pressure, flame sensing, and condensate switches.

Fault Finding Section H

Addresses issues related to overheat thermostat and system faults.

Fault Finding Section I

Covers troubleshooting for CH system pressure issues.

Fault Finding Section J

Details troubleshooting for pump circulation and temperature sensors.

Fault Finding Section K

Addresses issues related to 3-way valve connections and motor.

Fault Finding Section L

Troubleshoots issues with main water filter, assembly, and hall effect sensors.

Fault Finding Section M

Focuses on troubleshooting temperature sensors and heat exchangers.

Dunkirk DCB-165 Specifications

General IconGeneral
BrandDunkirk
ModelDCB-165
CategoryBoiler
LanguageEnglish

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