Marley Bathroom Extractor Fan 5 Inch 5" In-line Ventilation Without Timer Flexible Ducting Kit Included Wall or Ceiling Mounted Kitchen Bathroom Shower Wet Room WC

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In this instance, the switch live (SL) connection is not used but it is recommended that a 3-pole switch is still fitted as it would allow the circuit to be reconfigured to work with the light switch in future if desired.

Again, if installing a axial fan through the wall you may need to chase out a section of wall to run the cable to the fan. As with all electrical work, before anything is done at all, make sure that the circuit being worked on is fully isolated in the fuse box or consumer unit. To do so, either pull out the fuse or turn off the MCB. It must also be possible to isolate the fan by means of a pull cord switch inside the bathroom, or a fan isolation (3-pole) switch outside of the bathroom. Its not a smart a**ed reply. Some people on this forum (who dont get paid for it, mind) have taken a lot of care to put together guides to help with the more commonly asked questions.Once isolated, the next job is to install the fan isolation switch/3-pole switch. Where this is done will depend on the switch you have. When connecting up, its necessary to ensure the brown is connected to the permanent live terminal in the junction box and the common (C) in the switch, and the blue cable (sleeved brown as it is not being used as a neutral but as a live conductor) is connected to the SL (switched live) terminal in the junction box and L1 in the switch. This would be ideal as there is no natural lighting in the room anyway but I am not quite sure how to go about this. The other end is connected to the timed fan terminals as stated by the manufacturer in the instructions provided with the unit. When it comes to electrical work in the bathroom, as this is regareded as a “special location” by the regulations, any electrical work can and should only be carried out by a Part P registered electrician so that it is ensured the circuit is installed correctly and to regulations standard, can be fully tested once complete and finally a minor works certificate can then be issued to sign everything off.

My current extractor fan with timer (RDL model G510) has stopped working, so I have bought a replacement - Marley NDX100T. Despite this, if you are unfamiliar with working on and around electricity then you are better off getting the pros in to do it for you! Wiring a Timed Extractor Fan Switched on by its Own Switch Once the fan is positioned, the next task is to get it wired up. A suitable length of cable is cut to run from the 3-pole switch out to the fan. Please be careful taking advise off any Wiki, book or Forum before undertaking your own wiring if you are not 100% confident. In terms of each end when installing an inline fan, you will need both internal and external extractor fan vents.

If you are installing an axial through the wall type fan then you may need to run a short section of pipe between the inner and outer sections so that it bridges the cavity as you don’t want to be pumping moist air down into your empty cavity as this will cause untold amounts of issues. For completeness we will also cover how a standard bathroom extractor fan is wired up to it’s own switch and not an existing light switch. Wiring a Timed Extractor Fan That’s Turned on by an Existing Light Switch If you do this for plumbing and it goes wrong you get wet and annoyed. If it electrics you might not live to regret it. However, I would probably still have asked the question as the diagram quite clearly states that the set up described is not for a bathroom and not wishing to breach some huge safety aspect I would have posted question anyway. Marley 5" 115mm Induct Extractor Induct Utility Fan. Induct fan (Standard Model). Manningham Lighting & Electrical. Model Number: Airvac TF115BSK - Standard Model. Condition: New & Boxed. DM Edit 17/10/18.

From the FCU, the 3-pole isolator switch is connected up using a suitable length of cable that’s stripped at both ends. It’s connected between the 2 units, neutral terminal to neutral terminal, live terminal to live terminal and earths to earths. When wired to its own switch, the switch itself will either be located outside of the bathroom, normally above the door or it can be inside as long as it’s in the correct zone and is a pull cord switch. There's a very good reason electrician's training takes so long and is strictly regulated by the IEE et al.As there are several different ways that a timed extractor fan is wired up, here we will cover the most common method; Taking a power feed from an existing bathroom light. Apologies if this question has been asked before, but I have browsed and cannot see exactly what I am after. In a similar manner, the junction box for the live feed is then wired to the FCU, again, each wire connected to the correct live, neutral and earth terminals.

If you are unable or don’t want the fan wired off of the lighting circuit and want independent control then an independent switch will need to be installed.If installing an inline fan, this will need to be positioned and screwed down to a flat and level surface, ideally between the point that air is being extracted and then being expelled. The 3 pole switch ensures complete disconnection of supply to the fan so that maintenance can be carried out safely, without the need for a qualified electrician to disconnect the wiring (N.B. if you are in anyway unsure of how to carry out routine maintenance/cleaning on the fan, you should always seek the advice of a qualified electrician).