How To Wire And Test Heating Systems. 2 Port, 3 Port, S Plan, Y Plan Etc. Part 2

This is the second part of​ a series I'm​ doing to help engineers wire heating systems.
To support this content and get access to the PDF files to go with this training click here: / heatinggeeks
The PDFs for this video are not done yet!!! SOON.
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[@waynenixon729]

You are my go to guy for heating system wiring! You explain it so well that anyone can understand it.... Great video series. THANK YOU!

[@HeatingGeek]

Thanks. I'm really glad this is still helping people. 👍

[@CB-cz9yg]

Quality vid, exactly what I been looking for As a newly qualified engineer. Thanks for all your help👍

[@HeatingGeek]

Thanks for taking the time to watch it. :-)

[@truthwillout7909]

Great video, explained really well. Many of these types of videos don’t go into the detail you did. Keep it up mate.

[@bradleyla4526]

I’m about 4min in and the way you have already broke that down is amazing, so simple.

[@HeatingGeek]

good. I'm glad it helps. Share it with people because it really helps fault find. Thanks for watching, I appreciate it. 🙂

[@salmansarwar9977]

I must say Thank you so much Heating Geek It is the first time ever my concept cleared especially the way you stripped each and every cable and explained it properly really appreciated for your help and advise

[@HeatingGeek]

Thats why I did it :-)

[@peterhyatt6751]

I used to work for a firm that contracted to social housing, used to get 25+ jobs a day! Split between parts, fault finding and service. Impossible and always behind. I left the industry where I was so frustrated. Just looking to come back and mate your videos are great, makes me think I ain’t the only one who wants to repair not blag a new boiler! Keep up the good work mate

[@HeatingGeek]

Thanks. Most things can be fixed. I understand that you eventually will have to replace but most things are worth a bit of time. Thanks for watching this.:-)

[@Ex3t3r]

To those it may concern, HeatingGeek is providing imo a great service to budding heating engineers & trainee electricians too who wish to further there knowledge in there chosen field of work so instead of 'nitpicking' and making unnecessary negative comments (constructive criticism excepted) focus and appreciate on the time and effort this man has devoted to helping others further there knowledge and also consider he is a Heating Engineer and not a professional film production company so expect the odd blooper for which I am sure if he had the time would of picked up on and re-edited!

[@HeatingGeek]

Thanks :-) I don't mind people criticising. They could always do a better one. ;-)

[@brendanfisher2528]

very good video! looked really professional with the opening montage... well explained.. really enjoyed it mate! ill look forward to the second part! keep it up!

[@HeatingGeek]

I absolutely hated editing this. Put me off. :-)

[@millomweb]

This is the second part ! (Which is why it's entitled 'Part 2'.)

[@megaman1806]

I think this was a great approach to understanding the wiring by separating the 240v from the signal wires. It gives clarity.

[@HeatingGeek]

Thanks. That's why I did it that way. I hope this helps people out. I will get three port done in the very near future :-)

[@markjamesgoddard2247]

230V nowadays 👍

[@johnlennie2657]

I`m just about to start servicing and repairs to end my career, want the easy life now, Must admit, boilers are not really my thing and because of that, I`ve been a bit worried in case I make a horlics of it. However, your S Plan Pt1 to Pt3 are the first videos that I`ve seen, and I`ve seen a lot on KZbin, that really help. Just got to get my head around Y Plan now. Many thanks, I`ll be back! lol

[@HeatingGeek]

Good. I did try and think of the best way to explain it. :-)

[@AdnaneLondon]

Nice video heatinggeek ...looking forward to the next one and please don’t take long ...

[@HeatingGeek]

Its the wrong time of year to film and edit videos. :-)

[@charlieteer6162]

Great video. Keep up the great work. I’ve just passed my ACS and I’m currently working for a a large company and I’m not great with the wiring side of it. These videos are really helping. 👏👏

[@olivergilcreest5941]

Glad it helped. Bet you've got it under your belt now. :-)

[@mynameis9739]

@@olivergilcreest5941 when you back on the tube Olly?

[@HeatingGeek]

@@mynameis9739 I don't know atm. As soon as i can get someone to edit i think.

[@ninodema2963]

Very nicely presented.. Just what I was looking for... Like the way you closed the video 😀

[@HeatingGeek]

Thanks. I wasn't sure about the ending :-)

[@vladimirstafasani4630]

This is an amazing video, well done!!! Could you PLEASE put the wiring centre as well and it just finishes the whole wiring. Many Thanks Vlad

[@HeatingGeek]

I will ASAP. Very busy

[@dickyrock1]

Perfect video man, exactly what I was looking for, keep up the good work. Sound

[@deanmitsis67]

My bible for understanding s plan..this is so simple and brilliant to understand...thanks

[@hhjj6752]

Excellent! I have now sussed how to swap the Old Drayton Control to the new Tado wireless one. Cheers mate!

[@HeatingGeek]

Sorry I didn’t respond to this comment. I didn’t see it in my feed. :-(

[@petercolson8206]

Very good series of videos made it much easier to understand so many thanks ! You did mention at the beginning of Pt 2 that you would also show how to do wiring for pump overrun but I couldn't find it! It is a quick one you can answer here in comments?

[@paulaldous6410]

Your a star m8, fantastic vid . You have explained it all so well 👍 keep them coming 😃

[@HeatingGeek]

Thanks. I will try. :-)

[@kendoknackersackee]

This video is great. Making that rig with the junction boxes to show the path of the mains power connections throughout the circuit was a superb idea👍 The only thing I will say is, the earth (CPC) is there to protect you, not the cable. The cable is protected by the overcurrent device in the consumer unit, usually an MCB (or a BS3036 fuse in old installations) and, of course, there is also the 3A fuse in the switched spur. Imo, yours is the clearest explanation and best thought out video I have seen on wiring for a heating system. Keep making them mate. Subscribed😊👍

[@HeatingGeek]

Nice one. Of course, the earth is there to protect the person. I didn't make that clear. :-) Hopefully, people will get the point with it though. I took some time to decide how to video this. Wiring is really easy when you understand it but a wiring centre makes it look difficult. I will get back to youtube soon. :-)

[@kendoknackersackee]

@@HeatingGeekYou should definitely keep doing it the way you're doing it. Perhaps make it the next part of this series so you end up with a finished rig that represents how things would look in a real world installation. I saw somewhere in the comments that you say your brother is a spark. Have you thought about asking if he wants to get involved with some of your videos at some point so you can cover lots of aspects of electrical and heating? I reckon you'd even give John Ward some competition and he is the guru of all things electrical 😅👍 I can imagine how difficult it is to find the time to prepare and make videos for KZbin but keep making them, you're giving learners an indispensable resource.

[@scotts3498]

Clear and precise, well done mate for explaining it so well. Can be confusing for heating engineers to grasp the basics but once it clicks it will stick. Honeywell have an app for all wiring diagrams that’s a godsend so if your unsure check it out. Good work man keep up the videos 👍😎

[@HeatingGeek]

Thanks. Just gone through the comments.

[@HeatingGeek]

The honeywell app is good but has limitations

[@devonrodney2847]

Finally Glad to see the new video really nice intro and music. Thanks for the explanation 😄

[@millomweb]

Audio level of the video is still too low but the intro music is loud enough !

[@HeatingGeek]

Thanks. :-)

[@charlieteer6162]

Can you do the wiring centre. It would really help. Great videos, keep up the good work 👏👏👏

[@mselectricalandgasservices]

Thanks for making video this is the best video. You explained wiring system very clearly

[@rogerconnolly2679]

Great video, explained very well.keep up the good work.

[@sanbucaone]

Hi Ollie, just found your channel and enjoying the content and problem solving. In this vid at the point you mention the earth is there to protect the cables! You show the Drayton room stat and the back plate doesn’t have a terminal for number 4 which when you show connecting up the back plate then does have a terminal four where you connect the grey for heating off.i only noticed as I have the Drayton stat which only has the terminal 3 which you connected the blue for water as in your example. Keep up the good content. 👌 Ps. Just watched again and what I thought was the room stat was in fact the programmer back plate so resolved. Would be good to see wiring the wiring center however, we appreciate the time and effort you put into making these vids for us and it’s appreciated. Steve.👍

[@HeatingGeek]

Sorry I didn't reply sooner. I needed some time away form all this. :-) Glad you liked it and got to the bottom of the terminal issue :-)

[@moulesanctuary]

Brilliant video .. think I am going to be zoning off a large pub .. 2 port valves and all that .. it will be my first one

[@HeatingGeek]

Best of luck! Let me know how it all goes. :-)

[@moulesanctuary]

@@HeatingGeek I did it ... it worked first time .. i put in a wiser 3 system .. chuffed I was

[@muhammadmoin6341]

great job, very helpful for beginners

[@oneloveonelifeman]

Amazing video! I can see the light now!!

[@HeatingGeek]

Good. It's difficult to work out the best way to show it.

[@neillindsay2687]

Hi I’ve been thinking about getting a nest or hive system for a while but thought it would be a complex task. After watching a few KZbin videos, I’m convinced it should be quite easy but the system in my house is slightly different to things I’ve seen on here. The house was built in 2013 and was installed with a very complex Danfoss (hence the need change) controller near the boiler. It is a pressurised water tank type system. There is a separate upstairs and downstairs heating zone valve and a hot water valve. The downstairs has a non adjustable thermostatic sensor which is set by adjusting the controller. The upstairs has another programmable thermostat (looks very similar to the controller). I don’t want to have to buy 2 new systems to control the upstairs and downstairs. I suppose if I buy one system, I could parallel both zone valves in the wiring centre and remove the upstairs stat and wiring? The boiler is downstairs in the kitchen and the wiring centre is upstairs in the cupboard with the water tank and valves. I don’t think the NEST system would work for the 12v dc stat supply as I’d have to run a cable all the way back to the kitchen to pick up the supply for it. As the hive seems to be a stand alone , am I correct in thinking this should be the one to buy?

[@FuelingWit]

Definitely going to give this a go and make my own

[@HeatingGeek]

It helps. :-). do it!

[@mt3377]

Really brilliant video .cheers

[@finnbrayden8054]

Evening buddy, What an excellent video. Really clear and precise. I'm a sparky but didnt do a lot if any heating through my apprenticeship so these are valuable to me. Keep them coming really 10/10

[@HeatingGeek]

Thanks. My brother is a sparks but still calls me every heating job... :-)

[@lyeon99]

Do one with a wiring centre! We’d love that

[@user-yh4kl3hx2o]

Hi it would be great if you did the wiring centre thanks

[@tmothyadams]

I am doing a job shortly on my system at home, I have an oil burning boiler in the garden. A very informative video, currently there is only a simple on of switch for the heating and its not very efficent and is a pain in the arse with cold weather coming on now. I have a mate who is a plumber he said he will fit the motorised valves but I will have to wire it, so I am looking forward to learning through trial and error lol.

[@HeatingGeek]

Hopefully this will make sense when you have it all in front of you. :-)

[@millomweb]

You don't actually need valves. Your situation may be simpler than you think ! I can't advise without details of what you have and what you want.

[@tmothyadams]

I have an external oil fed boiler. Set on a simple on off switch. That feeds water to a cylinder and central heating system of 9 rads. There is an independent stop cock for each. We are looking to upgrade with a hive system, hence the need for motorised valves

[@HeatingGeek]

@@tmothyadams Love the thought of turning off stopcocks :-) How old school.

[@millomweb]

@@tmothyadams Hive system ? Seems like you're going from 'shove a bit more coal on luv' to beam me up Scotty without considering what you really want. What I want is a heating system that I don't have to tweak at all year in year out yet if there's a blip in routine, a simple press of a button is all that's needed to satisfy my needs. I've absolutely no need for remote control - and I'd expect that to be true of 90% of the population. Is your life that random ?

[@markfoster3785]

Thanks very much for your excellent presentations

[@HeatingGeek]

Glad you like them! Thanks for watching and taking the time to comment :-)

[@kevinbrown6066]

Great video Ollie. Keep them coming

[@HeatingGeek]

You like a stalker. One day you'll be in my van. :-)

[@kevinbrown6066]

No thanks it always breaks down.

[@HeatingGeek]

@@kevinbrown6066 It'll drive from here to Liverpool and bring you down. Kicking and screaming. :-)

[@hadjarramouche9984]

Sorry mate ,,,I meant to say how are your respect man trying to help beginners Keep up the good work

[@HeatingGeek]

Thanks. :-)

[@artvandelay8085]

great video. really helpfull thanks for making this stuff

[@HeatingGeek]

Glad it was helpful! Thats why I make them. :-)

[@mrsayef1059]

Hands down this is the most detailed video out here explaining this. But is it that i still dont get it lol. Combi boiler i understand but this is like witch craft to me. I guess when i instal one my self it will sink in. Thanks for the video i will keep watching every now and then 👍🏼

[@HeatingGeek]

Hopefully by the end of this, it will make more sense . :-) It's difficult to know how best to do this. :-)

[@mrsayef1059]

@@HeatingGeek it is a very difficult task and thank you for the video. Also great intro to the video i like it alot buddy 👌👌

[@B1cam]

I love a bit of heating wiring. 👍🏾

[@HeatingGeek]

So do I. When I have time and can just sit down and do it. Relaxing. :-)

[@alexkuiper1096]

Really good - thanks!

[@Pakistan_zinda_baad]

Absolutely unbelievable 👏 Many thanks

[@HeatingGeek]

You're very welcome

[@braddy1970]

Thanks very much helped a lot 😁

[@salmansarwar9977]

you connected cylinder stat what about wiring for room stat can you explain where cable going from room stat to 2 port for heating if i am not wrong it gone from room stat to two port valve brown wire then from there orange connected to boiler and pump permanent live am i right ?

[@ea1472]

Hi, thanks for the great videos and they are a huge help to me with my gas training. I understand almost all of the video apart from the wiring of the room stat. I don’t understand why it needs a neutral? And what is the neutral doing? Can you explain or add any link to any other videos that can help please? Also In the real world where would the live and earth go if you are only using the neutral to the room stat? I see you just put them in a block, is that what you usually find in the property or are the live and earths just usually cut off if they are not needed? Hope this makes sense Thank you again for your fantastic videos

[@HeatingGeek]

Sorry I didn’t respond to this comment. I didn’t see it in my feed. :-(

[@user-yh4kl3hx2o]

Can you do this through a wiring centre please??

[@TomPalacki]

Great one m8! Propa way of explaining shit - like it loads 👍 awaiting more "seasons" :)

[@HeatingGeek]

Good, I'm glad you like it. It was difficult to find the best way of explaining it. :-)

[@arinb12]

My ufh Salus KL08 NSB controller has 2 wires out for boiler on, but my Worcester 35cdi, according to the manual, just need one switched live. What's the 2nd wire for?

[@HeatingGeek]

your Worcester will have LS and LR. LS is live supply (from the boiler out to your controls) and then LR is the Live Return from your controls telling your boiler to run AKA the Switch Live. Hope that helps 2 week later.... Sorry. I didnt see the comment.

[@rafflesnh]

Great blend of humour and facts makes for engaging viewing yet again! Now that I've buttered you up ... ;-).... could you please explain one thing to me? On an 'S' plan system with a Megaflow cylinder, with the cylinder 'stat set to 60 degs C, what temp should I set the temp control knob on a 2011 Vaillant 624 System boiler?

[@HeatingGeek]

I would say minimum of 65 . 70 is probably better

[@rafflesnh]

@@HeatingGeek Thanks for taking the trouble to reply! It is set to 70 currently, but I wasn't sure if I was getting the best balance between cost and performance. Much appreciated, thanks.

[@B1cam]

You should definitely do the wiring centre.

[@HeatingGeek]

I will. ;-)

[@FuelingWit]

I agree, gives us engineers a realistic way of approaching this situation

[@markstrotton]

Great video mate.

[@HeatingGeek]

Thanks .:-)

[@apocolocyntosis9101]

Thank you mate for the video

[@HeatingGeek]

No problem

[@reliabill87]

Yes can you wire it all in a junction box please or if there is a video can you send me the link.

[@TbreakMoan]

Good vid well explained cheers

[@HeatingGeek]

Thank you too. :-)

[@IbrahimAliSapnin]

Awesome way to end vid!!

[@HeatingGeek]

HA. The video was too long so decided it would have to end there. Easy way to do it. :-)

[@joanofarc708]

Thank you very helpful

[@ermalmuka4442]

Hi, have you ever come across a boiler that doesn't work if it hasn't got a really good zs readings? Im asking you because one of my customer has a problem with the boiler, still under warranty. The plumber says that it doesn't work because his getting 40 oms on a TT system and needs to be under 10 oms for the boiler to work. I got it down to 18 oms and still no good for him.🤔 thanks

[@HeatingGeek]

If you soak the earth spike??? What boiler is it?

[@ermalmuka4442]

INTERGAS Its a combi compact s plan. There is nothing wrong with the earth rod. The readings are really good. But the plumber says that some boilers need realy good earth for it to work. Is that true? Thanks

[@ismaelpedro1938]

Very helpful this

[@peterhyatt6751]

Do you have any videos working on any problems with gravity fed systems?

[@HeatingGeek]

No sorry. There isn't much to go wrong with them. :-)

[@peterhyatt6751]

HeatingGeek well if you ever come across one you know where we are haha.

[@HeatingGeek]

@@peterhyatt6751 true ;-)

[@arinb12]

What happens if my thermostat has volt free switching but my boiler is expecting 240v switching? How do i wire this?

[@HeatingGeek]

Most thermostats that are volt free will also take 240v. check with the stat manufacturer.

[@millomweb]

At 15:47 you check the 3A fuse in the spur and tap the lid shut with your screwdriver, can you explain why the programmer shows 4:22 pm ?

[@HeatingGeek]

Wow!!!!! I never saw that. :-/ WTF. Ghost?? I don't know..... Maybe the water allowed some current to pass through?? I really don't know. Actually ..... In the next video, I find 7v when the spur is off, maybe the programmer saw that???

[@millomweb]

@@HeatingGeek In a friend's house, I was standing on the loft ladder having added some wiring to his bathroom. I was checking my work and used a neon screwdriver - on the earth terminal - and it lit. Obviously I explored this and determined the power to light the neon was coming from me going to the earth wire ! Seems you have some funky wiring ! I've a bunch of those programmers and have never seen anything displayed while not powered ! I know they have a button cell clock battery in them.

[@HeatingGeek]

@@millomweb Yeah I think it will be the water in the spur. Maybe.... ?

[@millomweb]

@@HeatingGeek It ought not to be ! Depends how crap the switch is. Is it a Crabtree ? I've had electric shocks off Crabtree light switches ! I've also had electric shock off a CRT computer monitor - while cleaning it ! ZAP !

[@andrewbobina7833]

hi mate thank you for your video

[@HeatingGeek]

No problem. It was difficult to work out how to best to explain it all. :-) Hope it helps.:-)

[@maxmerton]

What’s your view of the idea of connecting the MZV grey to the same terminal as MZV brown?

[@HeatingGeek]

I have done it to get me out of trouble a few times. Im not sure of the implications of doing it though. I think the perm Live is meant to stop the valve seizing somehow..... I can't remember now. Somthing to so with the Hz. Maybe..

[@maxmerton]

Swings and roundabouts. I see quite a few cases where the motor is working but the microswitch has fused closed. Customers are baffled by the fact that the boiler is cycling. Wiring grey to the heating demand means that the boiler won’t fire unless there’s a real demand from the ‘stat. It also reduces the number of live terminals when the programmer mode is ‘off’, which can help fault-finding when there are lots of zones. I can’t see a downside to this. I think ‘permanent live’ has a more important meaning in a 3-port valve.

[@andybakr]

Great vid 😊

[@HeatingGeek]

Sorry I didn’t respond to this comment. I didn’t see it in my feed. :-(

[@benfrost8697]

well done my dear x

[@HeatingGeek]

Thanks you. :-)

[@singhdilbagh8073]

Very helpful

[@garylawton7254]

If my hot water is starting to not get hot is it most likely the mid position valve or 2 port whichever you have installed has or is beginning to fail (stuck in one port or a lever issue ) could you tell me please? Cheers

[@HeatingGeek]

It could be anything. Programmer/timer stat pump boiler restriction. Loads of things. Sorry :-(

[@garylawton7254]

@@HeatingGeekthe ch is fine though would youu test the valve firstly ? Coil blocked even? Thank you for your reply mate

[@HeatingGeek]

@@garylawton7254 A balancing valve or the coil blocked. The valve will take seconds to see if it's open or not.

[@garylawton7254]

@@HeatingGeek just feel if its heating up the pipe?

[@HeatingGeek]

@@garylawton7254 just see if it opens. Google the type of valve you have and watch some videos

[@deborahskeete]

loving it 😃

[@HeatingGeek]

glad you like it. :-)

[@sn2319]

Good video

[@thirunavukarasumanoharan2279]

Excellent

[@cetocevik7198]

Cheers mate

[@HeatingGeek]

No problem. I hope it helped :-)

[@ledoledo515]

Very good video. Explained very well. HELP.... A question please, I have 2 heating zones and water cylinder too. The gas boiler had been replaced with a Glow warm combi one. But if I want only the heating ON, is not working. I have to turn On the water so the heating will be On too. What's the problem please?

[@HeatingGeek]

The CH 2 port valve is probably not working correctly.

[@ledoledo515]

@@HeatingGeek when I want zone 1 Ch or zone 2 Ch On, isn't working. I have to turn On Zone 3 water to make the valves of both CH to turn On. If the 2CH zone valves are not working how they work only when I turn On Zone 3 water? Strange, isn't it? Thank you

[@HeatingGeek]

@@ledoledo515 If both CH zone valves fail to fully open they will not make contact with the microswitch within the valve to turn the boiler on. This may be the issue but obviously Im not there. Otherwise it could be a simple wiring issue and the orange wires are not connected together from all valves.

[@ledoledo515]

All the oranges are connected together. Before with the old boiler was working all well, not with the new one no. Thank you

[@HeatingGeek]

if the oranges are all connected together then the issue must be the valves. @@ledoledo515

[@robswingler]

The earth is not there to protect the cable . The cable is protected by double insulation (basic & fault protection) the cpc is there to protect exposed parts. Remember you can easily damage a cable without hitting the cpc . Unless it’s an armoured

[@650GSF]

confusing but I guess it would sink in eventually, especially after actually doing it a few times on a practise rig.

[@HeatingGeek]

I will try and talk through me wiring a system. That might be better. :-/

[@TheDickPuller]

An easy way to think about it Garry ; all the Earths & Neutrals are Common - just connected together. You’re only concerned with the Permanent Live & the Switched Lives. Much of house wiring is the same!! You’ve a two channel programmer/timeswitch, one channel for the HW & one for the CH, on an S plan the two circuits remain separate all the way through the controls, the only time they become ‘Common’ is at the Switched Live to the boiler/Pump👍 Don’t think about it too deeply or you’ll get confused.

[@HeatingGeek]

@@TheDickPuller That's a very good explanation. You should do some videos. :-)

[@TheDickPuller]

HeatingGeek Thanks Ollie, but I’ve a face for Radio mate👍👍

[@HeatingGeek]

@@TheDickPuller And I dont :-) HA ha you must be kidding. You have the knowledge and could help alot of people. :-)

[@1000hillas]

Hi Thanks for a great informative video. How do you become a patron. Thanks

[@HeatingGeek]

Click the link in the description and follow the steps.

[@hadjarramouche9984]

Are you doing fella nice one as usual sometimes too simple for the beginners it makes it somehow for some awkward to understand one’s day on the job we both know in real life that’s not how you find an s plan my man

[@HeatingGeek]

Obviously it not how it is but its done to help understanding. If people understand it first the learning how to test in a wiring center is easy.

[@waynenixon729]

How would you run the pump without the boiler firing up? If it was a combi with the pump in the same box. Just remove the live to the boiler leaving the pump live in place? Thanks

[@tomstrutton4351]

You want to just run the pump inside a combi without the boiler firing up? The pump gets its power indirectly from the permanent live feeding the boiler, so disconnecting the live will mean nothing works within the boiler

[@millomweb]

Turn the boiler stat to minimum - hopefully it'll go low enough to not fire the boiler. Option 2: Turn the gas off.

[@HeatingGeek]

Why? For testing?

[@HeatingGeek]

@@tomstrutton4351 A Vaillant 6 or 8 series will work for heating without a permanent live. The display will turn off and it will cook itself but it will work ok for a good few years. Obviously the DHW wont work without a heating demand on the 8 series. :-)

[@millomweb]

@@HeatingGeek It's obviously for a mystery purpose.

[@paul_my_plumbs_uk]

Takes a bit of getting your head around it 🤔🤔🤔 i connect all the L N E'S then work away from there onto switch lines and so on. Easy to say but to begin with try to simplify the wiring process a step at a tme 😅😅

[@frankbennett8877]

Very confusing Yellow cable normally represents 110volts and blue cable in cylinder stat switching live !! Great video 👍

[@Ex3t3r]

Listen to what he has said, the yellow cable was to illustrate only the permanent 240v supply, obviously in reality you would use a different colour cable as you have suggested. You can sleeve the blue wire to the cylinder stat with a different coloured heat shrink sleeve for purposed of I.D at both ends

[@HeatingGeek]

I get your point. However, I was just trying to separate both things in peoples minds. Also, Heating systems use every colour including green-yellow as live/switch. A truer video would use red and black singles but would be even harder to explain. :-)

[@millomweb]

Yellow cable connects the modem to the computer.

[@HeatingGeek]

@@millomweb :-) Mines blue :-)

[@millomweb]

@@HeatingGeek I've blue ones for the net over mains adapters.

[@laldavenport]

Hello mate ,how do i become a Patron ?

[@HeatingGeek]

Click the link as far as I know??? :-)

[@laldavenport]

@@HeatingGeek yea all done thank you

[@HeatingGeek]

@@laldavenport Wow. Thank you. :-) I just sent you some stuff. A lot of stuff is on there. Please look through and let me know if you have any questions. :-)

[@keithsmith9833]

First time I’ve seen someone not use a hair dryer to dry components that were wet😉.

[@HeatingGeek]

Living a little

[@stephenwilliams1854]

great videos.would really appreciate it it you could show the system wired up to a wiring centre.thanks

[@HeatingGeek]

Will do, It is on my list of videos to film. :-)

[@halemotors4084]

Great video,Why only neautral wire?

[@HeatingGeek]

What do you mean?

[@kevinbrown6066]

Pick me up Monday morning

[@HeatingGeek]

Are you bringing the biscuits :-)

[@deborahskeete]

yes put a wiring system

[@HeatingGeek]

I will.

[@johnbower]

why do you say the yellow wires are the wires carrying 240 volts when ALL other wires carrying power are also 240 volts, you should be saying yellow wires are permanent live.

[@HeatingGeek]

I would need to watch the video again to answer you. I definitely won't watch it again so let's just say you are right. Sorry. :)

[@martinasher8705]

Sorry Ollie but that was as clear as mud mate, I really cannot see any reason why you would exclude the wiring centre in trying to explain how to wire any system.

[@Ex3t3r]

He explained in the tutorial that is was for ease of understanding so the object of this exercise was simplify heating controls in a clearer manner!

[@HeatingGeek]

@@Ex3t3r I like you Harry Palmer :-)

[@HeatingGeek]

I will wire up a wiring centre. :-)

[@martinasher8705]

@@Ex3t3r Well it didn't simplify anything, I spent over 45 years in the industry and generally speaking I find Ollie's video's very good and there's no doubt he knows what he's talking about but a good wiring diagram is a much better way to get anyone to understand how to wire a system correctly.

[@dmheatingplumbing9805]

Martin Asher I agree to an extent. We’re able to wire systems Martin. For those like mouse who would struggle wiring a plug top this is a good start as it shows the sequence. Spur / programmer (timer) / stats / valves / boiler. Once they understand that bringing the wiring center into it may work better. All I can say is I didn’t have all this info to learn from. I learn from a diagram .It couldn’t be easier now days with the likes of Ollie doing this type of thing.

[@hadjarramouche9984]

Ausually say to the customer that’s an ass plan

[@millomweb]

"The earth is there to protect the cable." NONSENSE !

[@tmothyadams]

Earth is there in case somebody cuts through the cable, therefore tripping out the breaker

[@HeatingGeek]

@@tmothyadams Yes it is. I know I said that wrong but couldn't be assed to film it again. Warts and all.

[@HeatingGeek]

You get the point though?

[@millomweb]

If it was true, everything would come with three core cable. Not even electric hedge trimmers and chainsaws come with three core cable - and the likelihood of cutting through the cable is fairly high !

[@HeatingGeek]

@@millomweb They are meant to work outside (damp) and are meant to be used on an RCD. :-) Extra safe. Maybe??

[@mindspirit179]

SWITCH BAIT ALERT !!!!!!!! LOL !!!!!!