Hi guys new to the forum. I’ve landed on a job on a dental surgery. The plumbers have installed new heating and got water system and basically left me to wire it up. Struggling to get my head around it and could do with some help. They’ve installed two boilers that are going to work together...
Hi,
I have a Y Plan system that has worked fine for years but recently developed a strange fault where the hot water on/off is only controlled by the Cylinder thermostat. The HW relay on the programmer is permanently on and although the relay clicks, its output does not change status with the...
Good afternoon all, just a quicky.
Ona Y plan system can anybody tell me why there is a switched live from the cylinder stat back to the programmer (Also connected to the grey on the MV)?
Why does the programmer need to know that the cylinder has hit the required temperature?
FYI I installed...
So Ze=0.02 and R1+R2 = 0.73 on a first floor ring main.
Nearest submain is about 35m away, so that Ze's plausible, and even a slightly indirect route makes Ze=0.03 realistic. So MCBs are going to need changing to Type Cs.
Unfortunately for that first floor ring R1+R2 of 0.73 is too high for a...
hi, I have ariston boiler with volt free connection ,ta1, this should have been plumbed with 2x 2 port valves as recommended by manufacturer , but plumber has installed 3 port valve so we have to put relays in can anyone put me in right direction with wiring from wiring centre to relays?
Hi to everyone!
Really happy that I can join electrician forum.
I'm from Republic of Moldova and moved to UK for just 6 months. Holding a Master level degree in electrical power engineering with more than 5 years of experience. Start working as a maintenance street lightning electrician and...
no hot water.. getting live on white when isolated? Valve not letting heat into tank side of valve.. although messy other wiring seems fine.faulty mid position valve right?
Hi,
Can anyone who has passed there AM2 please tell me what size fuse they used for the sy heating plan. It is fed from a B16. So, would it just be a 13a? I have seen them just on a 3a before.
Cheers
Full on course and exam,get the book and home study then book a external exam only, do a distance upgrade course then sit the exam as a external candidate,or wing the exam as I did with the last 17th upgrade
Pict
Hi guys
I could not find a suitable place for my question so I wanted to post it here. I have a kitchen extension coming up and I wanted to deal with smelly foods for good. A cooker hood just doesn't cut it for me. I could think of many reasons why that would be the case, possibly clogged...
Happy New Year!
In this video tutorial we will show how you can use the ElectricalOM CAD Plan Design add-on to create plan design drawings and at the same time create the schematic diagram, to calculate the installation
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Hi all,
Thanks for having a look at my post and many thanks in advance for any help you might offer.
Called to a customers house to sort out an overflow issue - this has resulted in an extensive re-plumbing of a very bad job.... however the wiring is equally as terrible and needs redoing...
Hi Guys,
Does anyone have any tips on wiring a boiler with mid position valve.
I've been rewiring a house and have had the job of wiring the boiler dropped on me by the plumber.
I have a..
Worcester boiler
Center mid position valve
Honeywell RF Chronotherm 'wireless' programmable thermostat...
Unvented y plan system with additional 2 port valve overheat protection. I'm trying to find a wiring diagram for this set up. Has anyone got one please?
Electrician
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Hello all!
I'm a plumber and have a customer where the s plan is working fine for both zones (ground floor, 1st floor + cylinder) but not firing the boiler when hot water demand from the cylinder is operated. 2 port valve opens and pump runs but boiler shows no demand for heat. Any ideas why...
123 submitted a new resource:
Heating: Valiant Ecotech Wiring Diagram with S Plan - Heating: Valiant Ecotech Wiring Diagram with S Plan
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123 submitted a new resource:
Heating: S Plan Plus with 3 Channel Programmer Wiring - Heating: S Plan Plus with 3 Channel Programmer Wiring
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123 submitted a new resource:
Heating: Modified S Plan With Timer Relay Overrun - Heating: Modified S Plan With Timer Relay Overrun
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