Nibe VEDEX 3300 User Manual (English)

Questions and Answers:

D
denise69Jul 28, 2025
Why is my Nibe VEDEX 3300 not reaching the required temperature?
- J
  James SmithJul 28, 2025
  To resolve issues with Nibe Boiler not reaching the required output and water temperature, ensure there's enough water in the heating system by refilling it. Adjust the pump flow. If the boiler output isn't sufficient for the water system, adjust or change the installation. Use only dry wood with moisture content below 20%. Repair any leaks in the firing-up safety valve. Address chimney draught issues by installing a new chimney or adjusting the connection, or position the throttle into the smoke flue. Straighten any bent blades of the draw-off ventilator to a 90° angle. Replace the boiler if it takes too long to fire up. Clean the boiler and any clogged combustion air holes in the burning chamber.
K
Kristopher StevensAug 3, 2025
How to stop smoke coming out of my Nibe VEDEX 3300 door?
- D
  daniel41Aug 3, 2025
  If you see smoke coming out of the Nibe Boiler door, it could be due to a faulty glass cord. Replace the sealing cord and adjust the door hinges. Avoid burning small pieces of wood or sawdust, as a clogged nozzle can also cause this issue. Ensure the boiler door is completely closed to prevent smoke from escaping.
A
Ann WilliamsAug 8, 2025
What to do if the Nibe VEDEX 3300 ventilator does not rotate?
- R
  rogerspamelaAug 8, 2025
  If the ventilator of your Nibe Boiler isn't rotating, it might be due to a clogged impeller. Remove any tar and deposits from the ventilator. Alternatively, the capacitor or engine might be faulty and need replacement.
M
Margaret TurnerAug 14, 2025
Why is there water inside the burning chamber of my Nibe VEDEX 3300 Boiler?
- M
  Matthew OlsenAug 14, 2025
  If you find water inside the burning chamber of your Nibe Boiler, it may be because the wood you're using is too moist. Use only dry wood with a moisture content below 20%. Also, the set temperature may be too low; increase it. If the return water temperature is too low, use a safety valve to protect the return from excessively low temperatures.
J
Jacob TerryAug 21, 2025
What to do if my Nibe Boiler has no power?
- B
  Barbara TaylorAug 21, 2025
  If your Nibe Boiler has no power, check the power outlet. Check the plug and cord.

Nibe VEDEX 3300 Specifications

General

Brand	Nibe
Model	VEDEX 3300
Category	Boiler
Language	English

Summary

General Information for Home Owners

System Diagram

Overview of the boiler's hydraulic connections and components.

Area of Use

Defines the intended application and environment for the VEDEX 3300 boiler.

Product Description

Details the VEDEX 3300 as a high-quality wood-fired boiler with an induction flue gas fan.

Hot Water Heating

Explains the boiler's functionality for domestic hot water generation.

Heating System Operation

Describes how the boiler heats water and distributes it to radiators.

Control Panel Overview

Identifies and explains the function of indicators, thermostats, and gauges on the boiler's front panel.

Settings and Maintenance

Charge and Circulation Pump

Guidance on maintaining the boiler's circulation and charge pumps.

Boiler Sweeping Procedure

Detailed steps for cleaning the boiler's fire-affected surfaces and flue gas ducts.

Wood Firing Operations

General Wood Firing Instructions

Advice on wood type, size, and moisture content for efficient combustion.

Boiler Default Settings

Recommended initial settings for the boiler's thermostats.

Primary Air Control Adjustment

How to adjust the primary air damper for optimal combustion.

Wood Firing Guide

Lighting Instructions

Step-by-step guide for safely starting a fire in the boiler.

Adding Wood

Instructions on how to load fuel into the boiler during operation.

Readjustment and Optimal Firing

Tips for fine-tuning the fire and ensuring efficient burning.

Installer Information - Installation Basics

Boiler Room Requirements

Specifications for the installation space, including air supply.

Chimney Specifications

Guidelines for chimney type, height, and draught for proper operation.

Assembly and Turbulator Function

Instructions for boiler assembly and the function/adjustment of turbulators.

Installer Information - Ceramics Installation

Ceramic Components Installation

Detailed steps for fitting ceramic inserts, grate, and flame trough into the boiler.

Pipe Installation and Connections

Pipe Connection and Filling

How to connect pipework and fill the boiler with water.

Draining and Cooling Coil Installation

Procedures for draining the boiler and connecting the cooling coil.

Environmental Approval Requirements

Conditions for meeting environmentally friendly approved standards.

Accumulator Docking Systems

Abbreviations List

List of technical abbreviations used in system diagrams.

Docking to Two Accumulator Tanks

Diagram and explanation for connecting two accumulator tanks.

Docking to Multiple Accumulator Tanks

Diagram and explanation for connecting multiple accumulator tanks.

Accumulator Docking - Closed Expansion Vessel

Electrical Installation and Safety

Electrical Connection Procedures

Guidelines for safely connecting the boiler to the electrical supply.

Thermal Valve Wiring

How to connect and use the thermal valve for charge control.

Wiring Diagram

Service and Maintenance Procedures

Boiler Sweeping Procedure

Detailed steps for cleaning the boiler and its components.

Flue Gas Fan Service

Instructions for removing, cleaning, and reinstalling the flue gas fan.

Service - Cover Plate Usage

Pellet Firing System Setup

Pellet Burner Installation

Steps for mounting and sealing the pellet burner onto the boiler.

Turbulator Adjustment for Pellet Firing

How to adjust turbulators for optimal pellet burner performance.

Reconfiguring for Pellet Burner

Modifications required to adapt the boiler for pellet firing.

Pellet Firing Sweeping

Specific sweeping instructions relevant to pellet firing operation.

Pellet Firing Accessories

List of optional accessories for the pellet firing system.

Component Identification and Location

Boiler Section Component Layout

Diagram showing the location of components on the boiler's main body.

Front Panel Component Layout

Diagram showing the location of controls on the boiler's front panel.

Detailed Component List

Technical Dimensions and Measurements

Boiler Dimensions

Detailed measurements and clearances for the VEDEX 3300 boiler.

Measuring Principle

Explanation of the principle used for measurement in the system.

Included Kit and Optional Accessories

Enclosed Kit Contents

List of all items included in the standard package.

Flue Pipe Extensions and Accessories

Details for flue pipe extensions for angled and vertical connections.

Pellet Burner System Parts

Accessories related to the pellet burner, including hatch and burner unit.

Feed Screws for Pellet Burner

Information on feed screws used with the pellet burner.

Technical Data and Specifications

Related product manuals

Nibe BIAWAR PELLUX 100/20

Nibe VEDEX 3300 User Manual

Table of Contents

Questions and Answers:

Nibe VEDEX 3300 Specifications

Summary

General Information for Home Owners

System Diagram

Area of Use

Product Description

Hot Water Heating

Heating System Operation

Control Panel Overview

Settings and Maintenance

Charge and Circulation Pump

Boiler Sweeping Procedure

Wood Firing Operations

General Wood Firing Instructions

Boiler Default Settings

Primary Air Control Adjustment

Wood Firing Guide

Lighting Instructions

Adding Wood

Readjustment and Optimal Firing

Installer Information - Installation Basics

Boiler Room Requirements

Chimney Specifications

Assembly and Turbulator Function

Installer Information - Ceramics Installation

Ceramic Components Installation

Pipe Installation and Connections

Pipe Connection and Filling

Draining and Cooling Coil Installation

Environmental Approval Requirements

Accumulator Docking Systems

Abbreviations List

Docking to Two Accumulator Tanks

Docking to Multiple Accumulator Tanks

Accumulator Docking - Closed Expansion Vessel

Electrical Installation and Safety

Electrical Connection Procedures

Thermal Valve Wiring

Wiring Diagram

Service and Maintenance Procedures

Boiler Sweeping Procedure

Flue Gas Fan Service

Service - Cover Plate Usage

Pellet Firing System Setup

Pellet Burner Installation

Turbulator Adjustment for Pellet Firing

Reconfiguring for Pellet Burner

Pellet Firing Sweeping

Pellet Firing Accessories

Component Identification and Location

Boiler Section Component Layout

Front Panel Component Layout

Detailed Component List

Technical Dimensions and Measurements

Boiler Dimensions

Measuring Principle

Included Kit and Optional Accessories

Enclosed Kit Contents

Flue Pipe Extensions and Accessories

Pellet Burner System Parts

Feed Screws for Pellet Burner

Technical Data and Specifications

Related product manuals