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Hegwein ZA0 Series - User Manual

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Operating Manual
Gas fired igniter
ZA0 / ZDA0
©
Hegwein GmbH
Am Boschwerk 7
70469 Stuttgart, Germany
Before first use, read the operating manual!
Tel.: +49 (0)711 13 57 88-0
Fax: +49 (0)711 13 57 88-5
E-Mail: info@hegwein.de
www.hegwein.de
Status: 11-2018

Table of Contents

Questions and Answers

  • C
    Christopher NewmanAug 4, 2025
    Why does the flame fail to form in my Hegwein Indoor Fireplace?
    • C
      Cristina FloresAug 4, 2025
      If your Hegwein Indoor Fireplace flame fails to form, several factors could be at play. It might be due to a defective air flap or valve, which would require replacement. Alternatively, throttle organs might be closed, needing to be opened, or the supply line could be blocked, requiring unblocking. The supply line might be too long, needing adjustment, or the gas supply line might still be inert with N2, requiring several ignition attempts. Other possible causes include a defective gas valve (requiring replacement), an incorrect gas-to-air ratio (requiring a settings check), or using the wrong type of gas (ensure you're using the gas specified on the rating plate).
  • E
    Erin WolfeAug 15, 2025
    Why does fault shutdown take place during operation of my Hegwein Indoor Fireplace?
    • T
      Tara QuinnAug 15, 2025
      If your Hegwein Indoor Fireplace experiences a fault shutdown during operation, it could be due to fluctuating combustion chamber or supply pressure levels, leading to flame blow-off. Check the pressure settings and consider a differential pressure regulation system. Another cause might be the pilot flame being influenced by the main flame or being suffocated, which would require repositioning the gas fired igniter. Lock-out can also occur if a flame is signaled before the gas valve opens, necessitating replacement of the gas valve. Finally, a defective ionization flame monitor can also cause this issue, requiring replacement.
  • T
    Tiffany LambAug 22, 2025
    How to fix no signal transmission via the integrated flame relay in my Hegwein Indoor Fireplace?
    • S
      Sara SanchezAug 22, 2025
      If the gas fired igniter and control unit are operational, but no signals are transmitted via the integrated flame relay in your Hegwein Indoor Fireplace, the integrated fuse may be defective. Replace the fuse.
  • L
    Leslie KellyAug 27, 2025
    How to troubleshoot spark not forming in Hegwein Indoor Fireplace?
    • S
      Sara PhillipsAug 27, 2025
      If the spark does not form in your Hegwein Indoor Fireplace, there are several potential causes. The gas fired igniter may not be receiving voltage, so check the wiring and control system. The ignition electrode could be burned out, requiring cleaning and replacement. The electrode distance might be too large or short-circuited; clean the igniter and adjust the electrode distance to 2-3 mm. A defective spark transformer will need to be exchanged. Scale on the spark electrode or earth rod/bolt should be removed. Finally, a broken ceramic insulator needs replacement.
  • N
    nicholasrojasNov 9, 2025
    What to do if the flame comes on for a short time, but trips once the ignition safety time has elapsed in Hegwein Indoor Fireplace?
    • J
      jamierobertsNov 9, 2025
      If the flame on your Hegwein Indoor Fireplace comes on briefly but then trips after the ignition safety time, several issues could be the cause. The flame rod might be burned out, deformed, or short-circuited, necessitating replacement and adjustment. A broken ceramic insulator on the flame rod would also require replacement. If using a Hegwein control unit, ensure the operating voltage lags behind the bias voltage by at least 5 seconds, keeping the bias voltage switched on. If using a different manufacturer's control unit, switch off the ignition voltage approximately 0.5 seconds before the ignition safety time expires. Overheating of the gas fired igniter can also cause this issue, so leave the fan air running for cooling. Incorrect gas and air operating pressure settings can misalign th...

Summary

General

Information on the operating manual

Provides important information on working with the gas fired igniter.

Explanation of symbols

Explains warning symbols and their meanings.

Liability disclaimer

States manufacturer's non-liability for damages due to misuse or non-adherence.

Copyright protection

Details copyright restrictions for the operating instructions.

Spare parts

Information on ordering original spare parts from the manufacturer.

Warranty regulations

States warranty regulations are in a separate document.

After-sales service

Provides contact info for technical support and feedback.

Safety

Owners responsibility

Outlines owner's obligations regarding regulations and safety.

Operating personnel requirements

Details qualifications required for operating personnel.

Unauthorized persons

Instructions to keep unauthorized persons away from the work area.

Intended purpose of the equipment

Defines the specific applications for the gas fired igniter.

Personal protective gear

Lists required protective clothing, shoes, and head protection.

Special dangers

Highlights dangers associated with incorrect transport.

Securing against unauthorized switching use

Procedures to prevent unauthorized switching of the equipment.

Response in case of danger or accident

Actions to take for preventive measures and in case of accidents.

Transport, packaging and storage

Safety instructions for transport

Safety precautions and warnings for transporting the equipment.

Transport inspection

Procedure for checking the delivery for completeness and damage.

Packaging

Information on packaging materials and handling.

Storage conditions

Specifies conditions for storing the gas fired igniter and spare parts.

Specifications

Type designation with type key

Explains how to interpret the product type designation.

Type key of ionisation flame monitor

Details the type key for the ionisation flame monitor.

Gas fired igniter

Lists technical characteristics and values for the gas fired igniter.

Power head

Provides technical specifications for the power head.

Dimensional drawing

Presents a drawing with dimensions of the gas fired igniter.

Rating plate of gas fired igniter

Explains the information found on the igniter's rating plate.

Rating plate of ionisation flame monitor

Details the information on the ionisation flame monitor's rating plate.

Service life

Discusses the product's expected service life and maintenance.

Functional characteristics and structure

Functional characteristics

Describes the basic function of the gas fired igniter.

Structure

Details the components and sectional drawing of the gas fired igniter.

Flame monitoring

Explains how the flame is monitored by the flame rod and ionisation current.

Safety time (flame failure detection time FFDT)

Defines safety time and its importance for flame failure detection.

Test sockets

Describes the use and limitations of test sockets for measurement.

Connections on the transformer part front panel

Details the connections on the transformer part front panel for IP 54 and IP 65 versions.

Gas and air adjusting components (accessories)

Lists and describes components for gas and air adjustment.

Electrical wiring versions

Outlines the units with which the gas fired igniter can be interconnected.

Installation and initial commissioning

Safety

Safety precautions for installation and initial commissioning personnel.

Installation and electrical connection

Instructions for installing and connecting the gas fired igniter electrically.

Electrical function test

Describes how to perform an electrical function test on the igniter.

Setting the required air volume

Step-by-step guide to setting the correct air volume for the igniter.

Setting the required gas volume

Instructions for setting the gas volume based on characteristic curves.

Checking the setting result

Criteria to verify if the air and gas settings are correct.

Operation

Safety

Safety precautions to be observed during operation.

Operation

Information on how the igniter is operated via the plant control system.

Maintenance

Safety

Safety precautions for performing maintenance work.

Maintenance, general

General guidelines and frequency for maintaining the igniter.

Conditions for maintenance work

General warnings and conditions before starting maintenance.

Exchanging the outer tube

Step-by-step guide for replacing the outer tube of the igniter.

Exchanging the power head

Instructions for replacing the power head component of the igniter.

Exchanging the ionisation flame monitor

Procedure for replacing the ionisation flame monitor.

Exchanging the final electrode support ring

Guide for replacing the final electrode support ring.

Exchanging the intermediate support rings

Steps for replacing intermediate support rings.

Actions following completed maintenance work

Checks and cleanup required after maintenance is finished.

Troubleshooting

Safety

Safety precautions to be followed during troubleshooting.

Troubleshooting table

Lists faults, causes, solutions, and personnel required for troubleshooting.

Dismantling; Disposal

Safety

Safety measures to observe during dismantling.

Dismantling

Steps to follow before starting the dismantling process.

Disposal

Guidelines for the ecologically responsible disposal of dismantled components.

Spare parts list

Spare and wearing parts

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

Annex

EU type examination certificate

Presents the official EU type examination certificate for the product.

EU Declaration of conformity

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

Hegwein ZA0 Series Specifications

General IconGeneral
ModelZA0 Series
CategoryIndoor Fireplace
Fuel TypeElectric
Voltage220-240V
Remote ControlYes
TypeElectric
Frequency50Hz
TimerYes
ThermostatYes
Safety FeaturesOverheat protection
MaterialMetal

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