Weishaupt WG20 1-C Z-LN Series

Questions and Answers

C
clifford28Aug 5, 2025
What to do if Weishaupt WG20 1-C Z-LN Burner is not operating?
- A
  Anthony SuttonAug 6, 2025
  If the Weishaupt Burner isn't operating, several factors could be at play. Start by checking the external fuse, and replace it if it has tripped. Ensure the heating switch is turned on. Also, verify that the temperature or pressure limiter on the heat exchanger hasn't triggered; if it has, reset it. Similarly, check the low water safety interlock on the heat exchanger, topping up the water and resetting the interlock if necessary. Confirm that the temperature or pressure regulator on the heat exchanger is correctly set. Lastly, examine the boiler or heating circuit control to ensure it's functioning properly and set appropriately.
M
Michael BergerAug 15, 2025
How to fix Weishaupt WG20 1-C Z-LN Burner not operating?
- P
  patricia24Aug 15, 2025
  To fix a Weishaupt Burner that is not operating: - First, check the external fuse and replace if tripped. - Second, ensure the heating switch is turned on. - Third, reset the temperature limiter or pressure limiter on the heat exchanger if triggered. - Fourth, top up the water and reset the low water safety interlock on the heat exchanger if triggered. - Fifth, adjust the temperature regulator or pressure regulator on the heat exchanger if incorrectly set. - Sixth, check the function and setting of the boiler or heating circuit control.
J
jamesmorrisAug 26, 2025
Why Weishaupt WG20 1-C Z-LN is not operating?
- R
  Robert WhitneyAug 27, 2025
  The Weishaupt Burner might not be operating due to several reasons. It could be a tripped external fuse, which you should check and replace if necessary. Another cause might be the heating switch being set to off, so ensure it's switched on. Additionally, the temperature or pressure limiter on the heat exchanger could have triggered, requiring a reset. A triggered low water safety interlock on the heat exchanger, which needs water to be topped up and the interlock reset, could also be the cause. Incorrect settings on the temperature or pressure regulator on the heat exchanger should be checked and adjusted. Finally, a non-functioning or incorrectly set boiler or heating circuit control can prevent the burner from operating; verify its function and settings.

Weishaupt WG20 1-C Z-LN Series Specifications

General

Brand	Weishaupt
Model	WG20 1-C Z-LN Series
Category	Burner
Language	English

Summary

User Instructions

Target Group

Manual intended for operators and qualified personnel.

Symbols

Explains danger, warning, caution, and information symbols.

Guarantee and Liability

Excludes liability for damage due to specific causes.

Safety Information

Designated Application

Specifies burner suitability for heat exchangers to EN 303/676.

Gas Leak Detection

Actions to take if gas is smelled.

General Safety Measures

General safety measures and PPE.

Electrical Work Safety

Safety precautions for electrical work.

Gas Supply Safety

Regulations and procedures for gas supply installation.

Equipment Alterations

Requirements for equipment modifications.

Noise Emission

Information on noise levels and protection.

Disposal Guidelines

Environmentally friendly disposal guidelines.

Product Description

Type Key Explanation

Explanation of the burner's type designation system.

Serial Number Identification

Locating and importance of the product's serial number.

Burner Function Overview

Components involved in air and gas supply and their function.

Electrical Components

Description of key electrical components.

Program Sequence

Step-by-step operational sequence of the burner.

Technical Data

Approval Data

Approval certifications and standards.

Electrical Specifications

Electrical specifications like voltage, consumption, fuses.

Ambient Conditions

Operating and storage temperature, humidity, elevation limits.

Approved Fuels

Approved fuel types (Natural Gas, LPG).

Emissions Data

Flue gas and sound emission data.

Rating and Capacity

Combustion heat rating and capacity graph.

Physical Dimensions

Physical dimensions of the burner.

Burner Weight

The weight of the burner.

Installation Procedures

Installation Conditions

Requirements for burner and heat exchanger matching and location.

Burner Mounting

Procedures for mounting the burner to the heat exchanger.

Optional 180° Burner Rotation

Steps for rotating the burner by 180 degrees.

Gas and Electrical Installation

Gas Supply Installation

Safety precautions and general instructions for gas supply connection.

Gas Valve Train Installation

Procedures for installing the gas valve train from the right.

Gas Line Soundness Test

Procedure for gas supply line soundness test and venting.

Electrical Connection

Steps for electrical connection of the burner.

Commissioning Guide

Commissioning Prerequisites

Conditions and checks before commissioning.

Connecting Measuring Devices

Instructions for connecting measurement devices for current and pressure.

Checking Gas Connection Pressure

Procedures for checking gas connection pressure.

Gas Valve Train Soundness Test

Steps for performing soundness tests on the gas valve train.

Purging the Gas Valve Train

How to purge the gas valve train.

Presetting Pressure Regulators

Determining and setting pressure regulator values.

Setting Diffuser and Air Damper

Adjusting diffuser and air damper settings.

Presetting Gas and Air Switches

Initial presetting of gas and air pressure switches.

Burner Adjustment

Procedures for adjusting the burner for ignition and full load.

Setting Gas Pressure Switch

How to set the gas pressure switch.

Setting Air Pressure Switch

How to set the air pressure switch.

Concluding Commissioning Work

Final checks and handover after commissioning.

Combustion Check

Procedures for checking combustion parameters like excess air.

Calculating Gas Throughput

Methods for calculating gas throughput.

Shutdown Procedure

Servicing Guide

Servicing Notes

General safety and procedural notes for servicing.

Service Plan

Overview of components, criteria, and service procedures.

Mixing Head Removal;Refitting

Steps for removing and refitting the mixing head.

Setting the Mixing Head

Procedure for setting the mixing head distance.

Setting Electrodes

How to set the ionisation and ignition electrodes.

Service Position

How to place the burner into a service position.

Fan Wheel Removal;Refitting

Steps for removing and refitting the fan wheel.

Burner Motor Removal

Procedure for removing the burner motor.

Air Damper Actuator Removal;Refitting

Steps for removing and refitting the air damper actuator.

Angle Drive Removal;Refitting

Procedure for removing and refitting the angle drive.

Gas Butterfly Valve Removal;Refitting

Steps for removing and refitting the gas butterfly valve.

Air Regulator Removal;Refitting

Procedure for removing and refitting the air regulator.

Replacing Multifunction Assembly Coil

How to replace a coil on the multifunction assembly.

Replacing Breather Plug

Procedure for replacing the breather plug.

Filter Insert Removal;Refitting

Steps for removing and refitting the filter insert.

Fuse Replacement

How to replace the fuse.

Troubleshooting Guide

Fault Condition Procedures

Overview of fault conditions indicated by the push button.

Push Button Off Faults

Faults and rectifications when the push button is off.

Push Button Red Faults

How to read error codes and reset faults.

Push Button Flashing Faults

Error codes and their meanings when the button flashes.

Operating Problems

Common operating problems and their solutions.

Technical Documentation

Wiring Diagram

Electrical wiring diagram for the burner.

Pressure Unit Conversion

Table for converting pressure units.

Appliance Categories

Explanation of appliance categories and gas types.

Project Planning

Continuous Fan or Post-Purge

Fire hazard related to fan failure during specific operations.

Spare Parts

Spare Parts - Group 1 (Housing & Mountings)

List of components 1.01 to 1.19.

Spare Parts - Group 2 (Actuators & Valves)

List of components 2.01 to 2.28.

Spare Parts - Group 3 (Burner Head Components)

List of components 3.01 to 3.22.

Spare Parts - Group 4 (Control & Cables)

List of components 4.01 to 4.15.

Spare Parts - Group 5 (Gas Fittings & Assemblies)

List of components 5.01 to 5.15.

Notes

Keyword Index

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