Different Types Of Ventilation Control
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Different Types Of Ventilation Control

By Kira Jopp on Wed 12 August 2020

There are four main types of control that you can get with your intermittent fan. Each type offers its own range of benefits to the user and is designed to meet different user needs.

The four main types of ventilation control that are typically found are:

1. Basic

2. Timer

3. Humidity Timer

4. Motion Sensor Timer

During the course of this blog, you will learn the benefits that these controls offer to the user and what needs these fans typically meet.

 

Basic Ventilation Control

What is basic control?

Basic control grants the user on/off functionality to their fan. This is typically controlled by remote switch or, depending on the unit, can be integrated with a light switch.

When would you use a basic controlled fan?

You would use a fan with basic on/off control when you wish to incorporate third party control systems to control the fan. This enables you to totally tailor your ventilation system around your circumstances rather than be dictated to by the ventilation unit itself.

 

Timer Ventilation Control

What is timer control?

This control means that the fan will continue to run after it has been switched off for a pre-set length of time. These run on times can be from 2 to 45 minutes and is designed to ensure that excess moisture which is created whilst the room is in use is removed.

When would you use a timer-controlled fan?

Typically, a timer-controlled fan would be used when you want your ventilation system to have some degree of automation. The fan will continue to run for the set period and as such you won’t have to worry about whether you’ve switched the fan on.

 

Humidity Timer Ventilation Control

What is humidity timer?

Using a fan with a Humidity Timer function will mean the fan will turn on once the humidity levels are above pre-set levels and will continue to run until the humidity levels are below the minimum threshold. The fan will continue to run on after the humidity levels have gone below the threshold to ensure that the excess moisture is removed from the room. Depending on the fan, humidity levels can be set between 40-90% relative humidity. The timer function within the Humidity Timer control is also set by the user.

When would you use a humidity timer fan?

You would use a humidity timer fan when you would like to have a responsive ventilation system in your kitchen or bathroom. This is because the fan will only turn on when the room is being used in such a manner that it causes moisture in the room to rise, which in turn can lead to damp and mould developing if left unchecked.

 

Motion Sensor Timer Ventilation Control

What is a motion sensor timer fan?

By having a fan with a motion sensor, the fan will only come when the room is in use. A PIR sensor is normally found within these fans and when it detects movement, causes the fans to switch on. The fan will continue to run on after the person has left the room to ensure that all excess moisture is removed from the room.

Why would you use a motion sensor timer fan?

This type of fan provides virtually on-demand ventilation. By turning on when you enter the room, you ensure that future excess humidity and moisture is removed from the room before it has a chance to build up and continue to run on after the room is no longer in use, to ensure that the excess humidity is removed from the room.