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  1. P

    Y Plan fault - damaging programmer

    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...
  2. ETradesmen

    Y plan wiring / Hot water

    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...
  3. M

    Low Ze, high(ish) R1+R2, Got a plan but just had an idea

    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...
  4. T

    volt free wiring on y plan

    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?
  5. A

    Looking for a plan :) Sparks, help me! :D

    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...
  6. bigspark17

    Y plan fault.........................

    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?
  7. J

    Fuse size for sy plan am2

    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
  8. the pict

    What's your plan for the 18th

    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
  9. A

    Multiple extractor fans for smelly foods in open plan kitchen

    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...
  10. MODECSOFT

    CAD Plan Design New Video Tutorial

    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 We hope you will found this video tutorial helpful More video tutorials...
  11. J

    Wiring an Alpha 100 cooker + central heating into S plan system

    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...
  12. Jackflash

    new wiring of Y plan

    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...
  13. M

    Y plan with additional two port valve

    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?
  14. K

    Electrician Jobs Renewable Solutions Team - Electrician wanted to cover wales and north, s and y plan heating systems

    Electrician Salary :£27,000 Work Based: Cover areas in the North east, North West, Midlands and Wales. Your appointments are based in one area per day. Days of work: Monday to Friday 8-5 with optional overtime to increase your wage Role : A strong back ground in wiring a variety of heating...
  15. M

    S plan not firing boiler for hot water

    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...
  16. 123

    Heating: Valiant Ecotech Wiring Diagram With S Plan

    123 submitted a new resource: Heating: Valiant Ecotech Wiring Diagram with S Plan - Heating: Valiant Ecotech Wiring Diagram with S Plan Read more about this resource...
  17. 123

    Heating: W Plan Wiring Diagram

    123 submitted a new resource: Heating: W Plan Wiring - Heating: W Plan Wiring Read more about this resource...
  18. 123

    Heating: S Plan Plus With 3 Channel Programmer Wiring

    123 submitted a new resource: Heating: S Plan Plus with 3 Channel Programmer Wiring - Heating: S Plan Plus with 3 Channel Programmer Wiring Read more about this resource...
  19. 123

    Heating: Modified S Plan With Timer Relay Overrun Wiring Diagram

    123 submitted a new resource: Heating: Modified S Plan With Timer Relay Overrun - Heating: Modified S Plan With Timer Relay Overrun Read more about this resource...
  20. T

    Y Plan heating system.

    Does anyone have a detailed wiring diagram for a Y & S plan heating system and how it should work?

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