Electric panel heaters..??

[sparkyjohn1]

I recently had another spark ring me up , about a job i completed late last year.Ranting that I havn't installed the heating circuit correctly, and i should re-visit to property to correct it.

The property didn't have a gas supply, so was asked to supply and Install a heating solution. ( electric rads / heaters etc.)

I have included a picture. ##best schematic diagram i could do on microsoft paint.##

This is how i did the job,, please tell me if you can find anything wrong with it..

Only thing i can think of is that the IN-LINE STAT, maybe borderline regarding max current draw,,,rated 16amp. but that is about it.. everything else seems o.k,??

Please let me know if you have any feedback..
thanks

 

[atm84]

Surely the client should be contacting you. Not the electrician. He didn't order the work. As a professional he should advise the client and then its up to the client to request you to go back.

 

[tazz]

There are 4 different rooms....yet on stat...?.....why dont you put 16a stat/timers in each room, so the temperature can be controlled in each room....better for Temp control and sorts out your problem.

 

[MDJ]

the whole job is wrong Tazz, however he will be doing the minimum he has to, I bet the electrician who has asked him to attend site has some ideas which may suprise him lol

 

[monkeyelectric]

same can be said for almost anything, 7671 doesnt mean you have to futureproof installations for incompetence.

No but you still have to install switchgear correctly rated for the ocpd!

 

[sparkyjohn1]

The client wanted 1 communal stat to control the 4 electric heaters from 1 position,,, As i've already said, it was an after-thought by the client, so wasn't wired accordingly,,. I'll be honest with you guys.. I've been a domestic spark all my life, proper house- basher, not fully conversant with contactors and the like...... a bit old school.. (only ever installed M.C.B's on the DIN rail... no timers, contactors., bell trannies,,, etc... )... sorry if i come across a bit of a one trick pony,,, just something i've never really done before...

 

[wozz]

No but you still have to install switchgear correctly rated for the ocpd!

I think sizing it to the load would be better.

 

[tazz]

The client wanted 1 communal stat to control the 4 electric heaters from 1 position,,, As i've already said, it was an after-thought by the client, so wasn't wired accordingly,,. I'll be honest with you guys.. I've been a domestic spark all my life, proper house- basher, not fully conversant with contactors and the like...... a bit old school.. (only ever installed M.C.B's on the DIN rail... no timers, contactors., bell trannies,,, etc... )... sorry if i come across a bit of a one trick pony,,, just something i've never really done before...

Din rail is a god send imo.....you can add din rail contactor, timers, delay timers, PSU,current control....the gear is endless these days, and makes the job so much neater and professional.

 

[wozz]

the whole job is wrong Tazz, however he will be doing the minimum he has to, I bet the electrician who has asked him to attend site has some ideas which may suprise him lol

Whilst it may not appear a usual design to say its wrong on the info given is a bit much, i wouldnt want to have to walk into a room and turn a heater on, i certainly dont do that at home! also these are fairly low consumption heaters not masses of money being thrown away, depending on how rooms are used, also there may have been budget restrictions which did not allow for a more controllable system.

Of course you could be correct, depending on what the customer asked for and how much money they were spending, the design wouldnt be my first suggestion but it may well be a suggestion further down the line.

 

[MDJ]

Whilst it may not appear a usual design to say its wrong on the info given is a bit much, i wouldnt want to have to walk into a room and turn a heater on, i certainly dont do that at home! also these are fairly low consumption heaters not masses of money being thrown away, depending on how rooms are used, also there may have been budget restrictions which did not allow for a more controllable system.

Of course you could be correct, depending on what the customer asked for and how much money they were spending, the design wouldnt be my first suggestion but it may well be a suggestion further down the line.

But it is wrong, he has a potential 40 amp supply running through a 16 amp stat, what is right about that ??

 

[sparkyjohn1]

thanks Tazz, I will bear the DIN rail comment in mind,,,, maybe its because i dont have long left before retirement i am reluctant to to learn and expand my expertise,,,, although, i do feel that i'm being left being with all the the new technology these days... it baffles me sometimes....
Thank you for you kind comments,, i will take them on board.,

 

[sparkyjohn1]

the supply isn't 40 AMP..!!!

 

[tazz]

A standard £8-£10 room stat....or a £25 stat/7 programmer from a local shed, installed in each room would certainly not break the customers bank

 

[sparkyjohn1]

YEAH, its a 40 amp m.c.b,, but the max current draw is only 16 amp...!!!

 

[tazz]

thanks Tazz, I will bear the DIN rail comment in mind,,,, maybe its because i dont have long left before retirement i am reluctant to to learn and expand my expertise,,,, although, i do feel that i'm being left being with all the the new technology these days... it baffles me sometimes....
Thank you for you kind comments,, i will take them on board.,

Some of use here are on our last 5-10 years....but keeping up is the only way to survive my friend....its a hard world

 

[monkeyelectric]

I think sizing it to the load would be better.

For this particular circuit i would still rather see it configured differently or downrate the ocpd to suit!