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elco VG 2.120 D - User Manual

elco VG 2.120 D
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02/2011 - Art. Nr. 4200 1029 5200B
VG 2.120 D
VG 2.160 D
VG 2.210 D
Operating instructions
For specialist installation engineers
Gas burners ........................................... 2-28
en
de, fr..................................... 4200 1029 5000
it, nl ...................................... 4200 1029 5100
............................................. 4200 1029 4901

Table of Contents

Questions and Answers

  • S
    Stacey LopezAug 5, 2025
    What to do if elco VG 2.120 D Burner starts, the ignition switches on, then failure?
    • N
      Nathaniel WilliamsAug 5, 2025
      If the Elco Burner starts, the ignition switches on, then fails, it could be due to several reasons: no flame at the end of the safety time, incorrect gas throughput, malfunction in the flame monitoring system, incorrect polarisation of the power supply, no ignition sparks, short-circuited electrodes, damaged ignition cables, defective igniter, control and safety unit issues or valves jamming. To address this, adjust the gas flow, check the ionisation probe's condition and position, verify the ionisation circuit connections, ensure correct polarisation of the 7P connector, adjust, clean or replace the electrodes, connect or replace the cable(s), replace the igniter, replace the control unit, check the cabling, replace the compact gas unit, and/or replace the valves.
  • P
    Patrick GomezAug 10, 2025
    Why does elco VG 2.120 D Burner switch off during operation?
    • K
      karen56Aug 10, 2025
      The Elco Burner might switch off during operation because of the air pressure switch contact opening during start-up or operation, or due to flame failure during operation. Try adjusting or replacing the pressure switch, checking the ionisation probe circuit, or checking or replacing the control and safety unit.
  • C
    Charles SolisAug 15, 2025
    What to do if elco VG 2.120 D does not start after thermostatic closure?
    • W
      William NavarroAug 15, 2025
      If the Elco Burner doesn't start after thermostatic closure, this could be due to a drop in supply voltage, a power failure, or a control unit malfunction. Check the cause of the voltage drop or power failure and replace the control unit.
  • R
    Ryan PerryAug 20, 2025
    What to do if elco VG 2.120 D Burner blower starts up, but burner does not start because of flaring?
    • M
      matthew56Aug 20, 2025
      If the Elco Burner blower starts but the burner doesn't due to flaring during pre-ventilation or pre-ignition, check the valve and flame monitoring.
  • W
    William FrankAug 26, 2025
    Why elco VG 2.120 D Burner has no heat requested?
    • T
      Tara RogersAug 26, 2025
      If there is no heat requested from the Elco Burner, the thermostats could be defective or incorrectly adjusted. Adjust the thermostats, and replace them if necessary.
  • T
    taylor90Aug 30, 2025
    What causes a servomotor fault in Elco Burner?
    • M
      Michael NguyenAug 30, 2025
      A servomotor fault in the Elco Burner could be due to clogging or locking of the air flap, or an internal fault with the servomotor. Replace the servomotor.

Summary

Important Information and Safety

General Safety and Application Notes

Essential guidelines for safe and correct use, application scope, and approvals.

Declaration of Conformity

Compliance with EU Directives and Standards

Lists CE marking directives and applicable standards for gas burners.

Product Overview

Burner Description and Components

Detailed overview of the burner's parts and their identification.

Burner Operation

Safety Functions and Monitoring

Explanation of the burner's safety mechanisms and operational monitoring.

TCG 2 xx Control Unit Operation

Details on the control unit's interface, locking, and unlocking procedures.

Terminal Allocation Charts

Diagrams and lists for 230V and low voltage connections.

Burner Assembly and Installation

MB-ZRDLE Gas Train Assembly and Settings

Technical data, assembly position, and detailed adjustment of the gas train.

Burner Assembly and Installation Procedures

Procedures for fitting the burner, pipe bracket, and related installation aspects.

Gas Train and Mixing Unit Checks

Instructions for checking gas train position, mixing unit, and liquid gas operation.

Gas and Electrical Connections

Regulations and procedures for connecting gas lines and electrical wiring.

Commissioning and Adjustment

Adjustment Data and Settings Table

Guide values for burner power, dimension Y, and air flap settings.

Setting Gas and Air Pressure Switches

Procedures for setting the cut-off points for gas and air pressure switches.

Air Regulation Procedures

Details on regulating combustion air via baffle plate and air flap.

Setting the MB-ZRDLE Gas Train

Step-by-step guide to adjust gas throughput and incremental advance.

Pre-setting Without Flame

Initial servomotor position settings before flame establishment.

Setting the Flame and Combustion Values

Fine-tuning the flame and optimizing combustion parameters.

Saving Commissioning Adjustment Values

Procedure to store servomotor positions and settings after successful commissioning.

Servicing and Maintenance

Routine Maintenance Tasks

Recommended annual maintenance, checks, and cleaning procedures for the burner.

Fault Diagnosis Menu Usage

Accessing and interpreting diagnostic codes and fault history.

Operating Statistics Menu Usage

Viewing historical data on burner operation, faults, and performance metrics.

Troubleshooting and Faults

Malfunction Diagnosis and Repair Guide

Systematic approach to identify and resolve common burner malfunctions.

elco VG 2.120 D Specifications

General IconGeneral
TypeVG 2.120 D
CategoryBurner
FuelDiesel
Power supply230V/50Hz
Nozzle0.75-1.50 GPH

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