elco VL 2.120 D User Manual

11/2010 - Art. Nr. 4200 1029 8600A
VL 2.120 D
VL 2.160 D
VL 2.210 D
Operating instructions
For specialist installation engineers
Fuel oil burners...................................... 2-25
en
de, fr..................................... 4200 1029 8400
it, nl ...................................... 4200 1029 8500
............................................. 4200 1029 8300

elco VL 2.120 D Specifications

General

Brand	elco
Model	VL 2.120 D
Category	Burner
Language	English

Summary

Overview

Important information

Key safety and operational guidelines for the burner.

Burner description summary

Textual overview of the burner's general characteristics and purpose.

Declaration of conformity for fuel oil burners

Responsibility disclaimer

Limitation of liability for damages arising from improper use or installation.

Final delivery and instructions for use

Requirements for providing operating and maintenance instructions to the end-user.

Notes for the operator

Recommendations for system inspection, maintenance contracts, and regular servicing.

Operation

Safety function

Overview of safety shutdown triggers and malfunction indication.

Starting the burner

Step-by-step process for initiating burner operation.

Burner operation, regulation between partial load and full load

Explanation of burner performance at different load levels.

TCH 2xx Safety Unit Operations

Control unit overview and operation

Details the microprocessor-controlled program sequence and voltage impact.

Locking and unlocking the control unit

Instructions for securing and accessing the control unit functions.

Display screen interpretations

Explanation of various screen displays and their meanings.

TCH 2xx Safety Unit Configuration

Control unit settings and menu access

Explains setting parameters using display and keys, and access to 7 menus.

Servomotor setting and control menus

Details menus for servomotor adjustment and setpoint configuration.

Advanced configuration menus

Covers industrial applications, manual control, and factory settings.

TCH 2xx Safety Unit Operation Sequence

Description of operating cycle phases

Explains the numbered phases of the burner's operating cycle.

Burner operation timing and sequence

Details the timing and sequence of various burner operations.

Assembly

Burner assembly

Instructions for mounting the burner to the boiler flange.

Burner tube installation depth and brickwork surround

Guidelines for installing the burner tube and surrounding insulation.

Inspection glass cooling

Information on equipping the burner housing for cooling the inspection glass.

Assembly: Connections

Electrical connection requirements

Safety and technical requirements for electrical installation by an electrician.

Fuel oil connection procedure

Steps for connecting the fuel oil supply via a bleed filter and pipe specifications.

Commissioning

Checks before commissioning

List of pre-commissioning checks to ensure correct operation.

Adjustment data overview

Table providing burner power, fuel flow, pressure, and air flap settings.

Checking combustion components

Steps for inspecting and verifying combustion component settings.

Commissioning: Air and Fuel Oil Regulation

Air regulation methods

Details on regulating combustion air via pressure and vacuum sides.

Fuel oil pressure adjustment

Procedure for adjusting fuel oil pressure using regulators.

Vacuum pressure check and implications

Importance of checking vacuum pressure to prevent pump damage.

Commissioning: Pre-Setting Without Flame

Initial pre-setting procedure

Steps for setting servomotor positions before initial burner start-up.

Modifying servomotor settings

Instructions on how to adjust servomotor position values.

Commissioning: Pre-Setting Without Flame (continued)

Preparations before burner start-up

Guidance on filling filters, bleeding lines, and checking system readiness.

Combustion value optimization

Advice on adjusting combustion values for optimal performance.

Safety function checks

Procedures for verifying safety functions like flame detection.

Commissioning: Setting the Flame

Standby mode and menu navigation

How the burner behaves when no heat is requested and how to navigate menus.

Burner start-up sequence and flame detection

Steps involved when a heat request triggers the burner start.

Flame stabilization and regulation

Process of flame stabilization and awaiting regulation authorization.

Commissioning: Setting the Flame Stages

1st stage burner adjustment

Adjusting fuel oil pressure and servomotor for 1st stage operation.

2nd stage fuel oil valve setting

Configuring the opening position for the 2nd stage fuel oil valve.

2nd stage burner adjustment

Adjusting servomotor for 2nd stage air flap and fuel oil pressure.

Differential 2nd stage valve control

Setting different positions for opening and closing the 2nd stage fuel oil valve.

Commissioning: Finalizing Flame Settings

Exiting the flame setting menu

Options for closing the menu and saving settings.

Operating mode and flame signal display

How to interpret burner status and flame signal intensity.

Commissioning: Saving Adjustment Values

Saving burner adjustment values to display

Procedure to save fixed servomotor positions as a backup.

Exiting without saving adjustment values

How to quit the menu without storing the current data.

Maintenance: Annual Servicing

Recommended servicing tasks

Overview of annual burner maintenance tasks for professional engineers.

Combustion component checks

Steps for checking and verifying combustion components.

Fan wheel maintenance and fitting

Instructions for cleaning, removing, and fitting the fan wheel.

Maintenance: Servicing Procedures

Replacing the flame tube

Steps for removing and refitting the burner's flame tube.

Filter and air intake box cleaning

Procedures for cleaning fuel filter and air intake box.

Cover cleaning and flue gas check

Instructions for cleaning the burner cover and checking flue gas temperature.

Maintenance: Troubleshooting

Malfunction diagnosis and prerequisite checks

Guide to diagnosing malfunctions by checking prerequisites and burner components.

Maintenance: Fault Diagnosis

Accessing fault diagnosis menu

How to enter the fault diagnosis menu and interpret fault symbols.

Maintenance company contact information entry

Procedure to enter telephone and contract numbers for service.

Maintenance: Operating Statistics

Accessing operating statistics menu

How to navigate to the operating statistics menu.

Flame detection time statistics

Displays flame detection time for last start-up and average for last 5.

Burner operation statistics

Shows total start-ups, faults, operating hours, and 2nd stage hours.

Maintenance: Operating Statistics (continued)

Fault type statistics

Counts of specific fault types like unwanted flame, no flame, flame loss.

Component specific fault statistics

Statistics for servomotor and fuel oil pre-heater faults.