Good Morning

Unfortunately this is not something i have the information on to advise on for you

if you would like to contact Airflow technical on the following telephone number 01494 525252 they will be able to advise you

Many Thanks

Nathan Swann

A The fan straight from the box and wired with a switched LIVE to terminal 1 & a PERMANENT Live to L  would work in the following manner

Two minute start delay IE will only switch on if the bathroom light/switch source is on for more than 2 minutes and then switch itself off on its overrun time setting after the light is switched off

15 Minute overrun timer setting

Room refresh set at 4 Hours

All of these features can be adjusted to suit different installations Please refer to instruction manual for the setting of these features via its “dip” switch

A Yes you can purchase a 2 speed switch (Part No 71523101) which would enable this fan to run on two speeds

A This is an installation problem we come across many times where the fan has been installed within a bathroom taking hot air up into a cold loft space condensation forms   and returns back down the pipe into the unit. It is always good practice to fit a moisture trap within the outlet thus completely eradicating this problem. These can be purchased separately via our website

A No in these days of energy saving it is not good practice to be cutting holes in glass especially in the case of double glazed windows which are sealed units 

A yes but the live feed in to the fan would need to be connected to terminal No 2

A  No problem with the Quietair range of fans as the performance of this fan does not drop due to its unique impeller design which is designed to work in combination with its flow straighter giving a giving a full performance of up to 12 metres of ducting with a maximum of eleven 90 degree bends

A Yes it does still refresh every 4/8/12 or 24 hours (Factory set at 4 hours) which can be adjusted via the dip switch (Please refer to manual for setting guide)

A Yes The QT100 Timer model has a unique feature called refresh which will refresh the room of stale air. This unique feature can be set up refresh every 4/8/12 or 24 Hours or if needed this can be switched off by setting the dip switch accordingly please refer to manual for all settings available

A Yes all of the QT Fan range can be ceiling mounted with another unique feature being that it does not matter what way around the fan is fitted with regards to cable entry as the front cover will fit in any of the four positions so that the front logo is as it should be when walking into a room

A The front cover can be removed (See instructions on how to remove this) and washed in mild washing up liquid but with great care in making sure that is  fully dry before refitting to the fan

A The fan is one of the most quiet fans on the market with a dB(A) rating of 25 which was measured @ 3 metres

A You would need to change the jumper setting within the fan to enable the second speed operation. Please refer to instruction manual for the setting of this jumper

A Located within the fan is a “Dip Switch” and depending on the configuration of  the settings on this gives all different options IE 6/12/18 or 24 Minutes overrun please refer to instruction manual for configuration of this switch depending on the setting  

A No Dimmer switches have a voltage regulator that transmits a digital signal which most mains voltage PCBs components also have and these 2 signals would normally interfere with each other

A The QT100T Fan has a delayed start so to save energy if the fan is not required for example during the night with the need to switch on the light. Providing the light is switched off within the 2 minute delay the fan will not start If the light is left on more than the 2 minute delay then the fan will start & switch itself off on its pre set time after the light is switched off. This feature can be switched off  by setting the dip switch accordingly please refer to the instruction manual for all settings available

Q Not at this present moment in time but this is something that we will be pursuing in the near future

A  Within the fan all electronics are fully isolated which includes the humidity sensor and with IP45 protection, QuietAir is safe for installation in wet zones in bathrooms, en-suites and shower rooms when protected by an RCD in accordance with the latest IEE wiring regulations.

A The QT 100 range of fans do not require a earth due to its double insulated motor

A The QT fan range only runs at 5 watts@ 20.8 l/sec so for example on a standard domestic tariff of 0.19 kw/hr and being used for 2 hours a day the cost of running this fan would be £0.057p per month amounting to £0.68 per year making one of the most cost effective fans on the market

A The QT range of fans are IP45 Rated with the IP meaning “Ingress Protection” and with a rating of 45 This is protected against water jets from any direction. So this fan can be safely fitted within a shower enclosure providing proper wiring guidelines are adhered to by a qualified electrician & a RCD Fitted as laid down by the latest IEE wiring regulations

A No The QT range of fans are fitted with a thermal overload cut out which is an added safety feature which is resettable once the unit has cooled down.

The reason that this cut out has come into operation could be for a number of reason with the most common one being that the fan has become very clogged up with dirt and dust or that the impeller has become unbalanced through a build up of dirt/dust

A The QT100T Fan is a timer module and would require BOTH a permanent Live to the L Terminal and a Switched Live to the No 1 Terminal to enable all the functions

The fan can be wired  with a permanent LIVE but this would need to be connected to No 2 Terminal and the fan will work as a straight on/off operation via a standard switch