Hegwein ZT0 - User Manual

Questions and Answers

A
Andrew DaltonAug 9, 2025
Why does my Hegwein ZT0 Burner shut down during operation?
- L
  Lynn BrownAug 9, 2025
  If the Hegwein Burner experiences fault shutdowns during operation, it could be due to fluctuating combustion chamber or supply pressure levels, which results in flame blow-off. Check the pressure settings at the test nipples and, if necessary, provide a differential pressure regulation system for gas and air. Another cause could be that the pilot flame is highly subject to influence by the main flame or is suffocated; in this case, change the position of the gas fired igniter. You may need to use a more powerful gas fired igniter.
K
kclarkAug 25, 2025
What to do if Hegwein ZT0 locks out at start?
- T
  Travis CrawfordAug 25, 2025
  If the Hegwein Burner locks out because a flame is signaled at the start before the gas valve has opened, it is possible that the flame was not extinguished when switching off due to a leaking valve, and is already present when restarting. In this case, replace the gas valve.
R
Robert CortezAug 29, 2025
How to handle contaminated combustion air in Hegwein ZT0 Burner?
- K
  Kristen RamosAug 29, 2025
  If the combustion air is contaminated in the Hegwein Burner, use a filter or clean/replace the existing filter if necessary.
P
Phillip AndersonNov 3, 2025
What to do if the Hegwein ZT0 flame goes on and off?
- J
  Joshua PhillipsNov 3, 2025
  If the Hegwein Burner flame comes on briefly but then trips after the ignition safety time, it could be due to several reasons. The flame rod may be burned out, deformed, or short-circuited, in which case you should exchange the flame rod and bend it back to its original position, also clean any scale/internal burner parts. Alternatively, the ceramic insulator of the flame rod might be broken, requiring replacement of the ceramic insulator or electrode support ring. If using a Hegwein control unit, ensure the bias voltage is always switched on, as the operating voltage must lag behind by at least 5 seconds. If using a control unit from a different manufacturer, switch off the ignition voltage approximately 0.5 seconds before the ignition safety time expires. Overheating of the gas fired ig...
L
Lindsey BarkerNov 13, 2025
Why won't the flame ignite on my Hegwein ZT0 Burner?
- T
  tonyabrownNov 13, 2025
  If the Hegwein Burner flame fails to form, several issues could be the cause. There may be no combustion air available due to a defective air flap or valve, which requires exchanging the air flap or valve. Alternatively, throttle organs might be closed, so open them. A blocked supply line could also restrict air flow, so unblock the line. Insufficient gas supply could be due to a supply line that is too long, requiring you to dimension the supply line accordingly or change the position of the gas fired igniter. If the gas supply line is still inert with N2, carry out several ignition attempts until the line has filled with gas. A defective gas valve could also be the problem, so exchange the gas valve. An incorrect gas to air ratio requires checking the settings of the gas and air operatin...
C
Crystal UnderwoodNov 18, 2025
How to fix a Hegwein ZT0 when the spark does not form?
- H
  howardnancyNov 18, 2025
  If a spark does not form in the Hegwein Burner, it could be due to several reasons. The gas fired igniter may not be receiving any voltage, so check the wiring and control system. The ignition electrode could be burned out, requiring you to clean the inside of the gas fired igniter and replace the ignition electrode, bending it to its original position. If the electrode distance is too large or the electrode has short circuited, clean the inside of the gas fired igniter and bend the ignition electrode to a distance of 2 – 3 mm. A defective spark transformer will need to be exchanged. If there is a layer of scale on the spark electrode or earth rod/bolt, clean the inside of the gas fired igniter and remove the deposits using emery paper. Finally, a broken ceramic insulator will need to be e...

Summary

General

Information on the operating manual

Provides guidelines for understanding and using the manual effectively.

Explanation of symbols

Details the meaning of warning symbols and signal words used in the manual.

Liability disclaimer

Outlines the manufacturer's limitations of liability for damages.

Copyright protection

States the copyright and industrial property rights protection of the manual.

Spare parts

Explains how to order spare parts and highlights the importance of using original parts.

Warranty regulations

Refers to separate documentation for warranty terms and conditions.

After-sales service

Provides contact information for technical support and feedback.

Safety

Owners responsibility

Defines the owner's obligations regarding safety regulations and personnel training.

Operating personnel

Specifies the required qualifications and authorization for personnel operating the equipment.

Intended purpose of the equipment

Describes the designated use of the gas fired igniter and prohibits misuse.

Personal protective gear

Details the mandatory personal protective equipment (PPE) for safe operation.

Special dangers

Highlights specific hazards associated with transport, electrical current, and ESD.

Securing against unauthorized switching use

Explains procedures to prevent accidental or unauthorized switching on of the equipment.

Response in case of danger or accident

Provides guidelines for preventive actions and correct reactions during accidents or emergencies.

Transport, packaging and storage

Safety instructions for transport

Provides safety guidelines and warnings for handling and transporting the equipment.

Transport inspection

Details procedures for checking deliveries for completeness and transport damage.

Packaging

Explains packaging materials used and handling for re-use or recycling.

Storage conditions

Specifies the required environmental conditions for storing the gas fired igniter.

Specifications

Type designation with type key

Explains the coding system used for type designations and their meanings.

Gas fired igniter

Lists technical characteristics and values for the gas fired igniter unit.

Power head

Details the technical specifications and electrical data for the power head component.

Dimensional drawing

Presents a diagram with key dimensions and connection points of the igniter.

Rating plate

Describes the information found on the equipment's rating plate.

Service life

Provides information on the product's designed service life and factors affecting it.

Functional characteristics and structure

Functional characteristics

Describes the basic function of the gas fired igniter in igniting and supporting a main burner.

Structure

Illustrates the sectional drawing of the igniter and lists its main components.

Flame monitoring

Explains how the flame is monitored using the flame rod and ionization current.

Gas and air adjusting components (accessories)

Lists and describes available accessories for adjusting gas and air flow.

Electrical wiring versions

Details compatible units for interconnection with the gas fired igniter.

Installation and initial commissioning

Safety

Highlights safety precautions and personnel qualifications for installation and commissioning.

Installation and electrical connection

Provides step-by-step instructions for installing the igniter and making electrical connections.

Electrical function test

Describes the procedure for performing an electrical function test on the installed igniter.

Setting the required air volume

Details the process for adjusting the air volume to the required operating pressure.

Setting the required gas volume

Explains how to set the gas volume based on characteristic curves and operating pressure.

Checking the setting result

Outlines the expected results after correct setting and initial commissioning.

Operation

Safety

Emphasizes safety requirements for operating the gas fired igniter.

Operation

Describes how the igniter is operated via the plant control system.

Maintenance

Safety

Stresses safety precautions necessary for performing maintenance work.

Maintenance, general

Provides general guidelines for routine function testing and checks.

Exchanging the outer tube

Details the procedure for replacing the outer tube component.

Exchanging the power head

Describes the steps involved in replacing the power head assembly.

Exchanging the final electrode support ring

Explains how to exchange the final electrode support ring.

Exchanging the intermediate support rings

Provides instructions for replacing intermediate support rings.

Actions following completed maintenance work

Lists essential checks and actions after maintenance before restarting the equipment.

Troubleshooting

Safety

Highlights safety measures required when troubleshooting potential faults.

Troubleshooting table

Lists common faults, their possible causes, solutions, and responsible personnel.

Dismantling; Disposal

Safety

Emphasizes safety precautions during dismantling due to residual energy and sharp components.

Dismantling

Outlines the steps for safely dismantling the gas fired igniter.

Disposal

Provides guidance on ecologically responsible disposal of dismantled components.

Spare parts list

Spare and wearing parts

Lists available spare and wearing parts with their designations, part numbers, and configurations.

Annex

EU Declaration of conformity

Presents the EU Declaration of Conformity for the gas fired igniter.

Hegwein ZT0 Specifications

General

Brand	Hegwein
Model	ZT0
Category	Burner
Language	English

Hegwein ZT0 - User Manual

Table of Contents

Questions and Answers

Summary

General

Information on the operating manual

Explanation of symbols

Liability disclaimer

Copyright protection

Spare parts

Warranty regulations

After-sales service

Safety

Owners responsibility

Operating personnel

Intended purpose of the equipment

Personal protective gear

Special dangers

Securing against unauthorized switching use

Response in case of danger or accident

Transport, packaging and storage

Safety instructions for transport

Transport inspection

Packaging

Storage conditions

Specifications

Type designation with type key

Gas fired igniter

Power head

Dimensional drawing

Rating plate

Service life

Functional characteristics and structure

Functional characteristics

Structure

Flame monitoring

Gas and air adjusting components (accessories)

Electrical wiring versions

Installation and initial commissioning

Safety

Installation and electrical connection

Electrical function test

Setting the required air volume

Setting the required gas volume

Checking the setting result

Operation

Safety

Operation

Maintenance

Safety

Maintenance, general

Exchanging the outer tube

Exchanging the power head

Exchanging the final electrode support ring

Exchanging the intermediate support rings

Actions following completed maintenance work

Troubleshooting

Safety

Troubleshooting table

Dismantling; Disposal

Safety

Dismantling

Disposal

Spare parts list

Spare and wearing parts

Annex

EU Declaration of conformity

Hegwein ZT0 Specifications