Vostermans Ventilation Mf-Net SEA-3N - User Manual

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SEA-3N / SEA-6N

SEA-3N / SEA-6N

SEA-3N / SEA-6N

SEA-3N / SEA-6N

ENGLISH

Installation Instructions - Operating Instructions

NEDERLANDS

Installatie Instructies - Gebruiksaanwijzing

DEUTSCH

Installationsanleitung - Betriebsanleitung

FRANÇAIS

Instructions d'installation - Mode d'emploi

Document ID: INS00066-A

IMPORTANT - READ CAREFULLY BEFORE USE

BELANGRIJK - VOOR GEBRUIK ZORGVULDIG LEZEN

WICHTIG - VOR GEBRAUCH SORGFÄLTIG LESEN

IMPORTANT - LIRE ATTENTIVEMENT AVANT UTILISATION

Table of Contents

Questions and Answers

M
Michael MullinsAug 6, 2025
What to do if my Vostermans Ventilation Thermostat has no output voltage?
- L
  Lori LewisAug 6, 2025
  If your Vostermans Ventilation Thermostat shows no output voltage, it could be due to several reasons: * The thermal protection might be activated because the current draw is too high. In this case, reduce the load. * The thermal protection might be activated because the ambient temperature is too high. Try to lower the ambient temperature to between 0°C and 40°C. * The thermostat or module might be connected incorrectly. Make sure to correct the wiring according to the wiring diagrams.
S
slynnAug 13, 2025
Why is my SEA-3N / SEA-6N transformer not responding to the Vostermans Ventilation Mf-Net SEA-3N?
- S
  scottjacobAug 13, 2025
  If your SEA-3N / SEA-6N transformer isn't responding to the Vostermans Ventilation Thermostat, the wiring might be incorrect or damaged, so you should correct and/or repair the wiring. If this doesn't solve the issue, it's possible that the thermostat itself is defective or not working correctly.
E
Eric CalhounAug 20, 2025
What to do if the fan connected to the SEA-3N / SEA-6N transformer is not working correctly, but there's output voltage present at the transformer?
- L
  Lori DanielsAug 21, 2025
  If the fan connected to the SEA-3N / SEA-6N transformer isn't working correctly despite the presence of output voltage at the transformer, consider the following: 1. Check if there's no voltage at the fan and a motor protection device has been activated. If so, reset the motor protection device. If it activates regularly, check the electrical installation. 2. Also check if there's no voltage at the fan because the wiring is incorrect or damaged. In this case, correct and/or repair the wiring.
C
Carrie BennettAug 28, 2025
How to fix a Vostermans Ventilation Thermostat with no supply voltage?
- J
  Jacob SparksAug 28, 2025
  If your Vostermans Ventilation Thermostat has no supply voltage, here are a couple of things to check: * A fuse might have been switched off. Try resetting the fuse. If the fuse switches off regularly, it's a good idea to check the electrical installation. * The wiring could be incorrect or damaged. Make sure to correct and/or repair the wiring.

Summary

Introduction

Legal Notice and Disclaimer

Defines the scope of delivery, document currency, and liability for improper use.

Safety

Safety Messages and Signal Words

Highlights important safety messages and explains signal words (DANGER, WARNING, CAUTION, NOTICE).

Safety Symbols

Illustrates and explains common safety symbols used throughout the document.

Information

Product Overview

Provides a general description and diagrams of the SEA-3N/SEA-6N controller.

Intended Use

Explains the product's purpose: transformer voltage controllers for single-phase fan speed control.

Technical Specifications

Details supply voltage, control capacity, output voltage steps, operating temperature, and dimensions.

Installation

Pre-Installation Checks

Steps to check before starting installation: product condition, rating plate, and fan compatibility.

Mechanical Installation

Provides instructions for mechanical installation, including surface and orientation requirements.

Electrical Installation and Grounding

Details electrical connection requirements, safety, current limits, and grounding procedures.

Manual Control Wiring Diagram

Wiring diagram for manual step control of the fan using the selection switch.

T15-WD Fixed High;Low Wiring

Wiring diagram for T15-WD thermostat with fixed high and low speed steps.

T15-WD Low;Selectable High Wiring

Wiring diagram for T15-WD with fixed low and selectable high speed steps.

T15-2 Thermostat Wiring

Wiring diagram for T15-2 thermostat with fixed low, selectable intermediate, and max steps.

T15-4, ETD-S, Relink-2 S Wiring

Wiring diagram for T15-4, ETD-S, or Relink-2S modules controlling all 5 steps.

ETD-SN Thermostat Wiring

Wiring diagram for ETD-SN thermostat controlling all 5 steps.

Maintenance

Scheduled Maintenance

Tasks to be performed every 3 months, including checking for defects and cleaning.

Cleaning Instructions

Guidance on how to clean the controller, preferably using a soft brush.

Troubleshooting

End of life

Product Disposal

Instructions on how to dispose of the product at the end of its life cycle according to regulations.

EU Declaration of Conformity

Glossary

Vostermans Ventilation Mf-Net SEA-3N Specifications

General

Mounting Type	Wall-mounted
Protection Class	IP54
Communication	Modbus RTU
Display	LCD
Power Supply	24 VAC
Control Type	Manual