Vent-Axia 475142A - User Manual

100mm & 125mm
CONTINUOUS EXTRACT FAN RANGE
Installation and Wiring Instructions
Stock Ref. N°
475142A - NBR DMEV 100
473809A - NBR DMEV 100 HT
494147 - NBR DMEV 125
494148 - NBR DMEV 125 HT
PLEASE READ INSTRUCTIONS IN CONJUNCTION WITH ILLUSTRATIONS.
PLEASE SAVE THESE INSTRUCTIONS.
NBR DMEV
IPX5
220-240V~50Hz

Summary

Installation and Wiring

Safety and Guidance Notes

Wiring Regulations and Installation Standards

Covers wiring to I.E.E. Regulations, appropriate standards, and installation by qualified persons.

Installation Environment and Usage

Details suitability for zones, isolator switches, mains compliance, product usage, and fuel-burning appliance considerations.

Installation Guide

Panel, Ceiling, and Interior Wall Mounting

Steps for cutting holes, removing panels, wiring, and securing the fan for panel/ceiling/interior wall installations.

Exterior Wall Mounting

Steps for wall mounting, including cutting holes, inserting sleeves, fixing grilles, and securing the fan.

Window Mounting

Wiring Instructions

Electrical Safety and Supply

Setup and Configuration

Accessing Commissioning Menu

Standard Settings Overview

Advanced Settings Overview

Speed Selection and Trickle Setting

Boost Time and Overrun Adjustment

Humidity Control Features

Comfort Mode Operation

Fan Control Mode Options

Calibration Reset and Procedures

Servicing and Maintenance

Troubleshooting Guide

Fan Speed Fluctuation Issues

Explains fan speeding up/down due to external wind conditions and how to adjust settings.

Airflow Volume Problems

Addresses issues with too much or too little air, possibly due to incorrect speed settings or external pressure.

Calibration Error Messages

Explains ERR display during calibration, often due to windy conditions or airflow measurement devices.

Vent-Axia 475142A Specifications

General

Model Number	475142A
Type	Extractor Fan
Diameter	100 mm
IP Rating	IPX4
Voltage	230 V
Mounting	Wall/Ceiling
Noise Level	38 dB