y plan

y plan

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  1. grumpyjohn01

    Modified Y plan for unvented cylinder

    I had to wire in an extra 2 port valve today to protect a newly installed unvented cylinder (replacing the old gravity fed one) in a standard Y plan setup. However the wiring centre adjacent to this tank didnt have a permanent live available as the programmer and boiler with supply spur are...
  2. K

    Hive on a Y plan existing programmer is a Danfoss set 3m

    Hi i am a gas fitter by trade and thought the installation would be straight forward , my current programmer is a danfoss set 3m The back boxes are different , i was hoping for them to be the same like for like, any help/advice would be appreciated thanks
  3. B

    Y Plan heating and UF heating controls

    Hello Guys, I was wondering if any of you nice chaps could lend me some advice. So I have an open vented heating system with a 3 port valve (Y-Plan) and had a new heatmiser underfloor heating system installed with wireless thermostats. I keep having issues with the synchronous motor that...
  4. The apprentice

    y plan heating (combiboiler)

    hi there thanks in advance for helping was just wondering if anyone had diagrams of y plans which i think are combi boiler wiring diagrams
  5. M

    worcester green star 18 ri boilers and y plan

    so weve had stelrad elan boilers replaced in rental houses with system boilers teh stelrad hadnt died we just thought time to chamge I had a worcester combi in a house in worcester (the tenant worked for WB ) and recomended ok so we specified Wb boilers we lived in one house and the installer...
  6. S

    I Need Work Boiler controls price work in and around London areas

    Looking for anyone interested in taking on some boiler control installations combi/ S/Y plan heating circuits Between £200-£300 a day all in around north/east/west London Price work Must drive And have small experience in central heating controls/ Boilers and testing Feel free to call or...
  7. G

    Megaflo Y plan problem

    Hi there, I have a Megaflow wired to spec here (bottom of p21), i.e. in a Y plan with additional 2-port valve. When CH is on and the stat switches to satisfied, heating sometimes stays on, sometimes switches off as commanded. I thought it might be the 3-port's head so replaced that; is it...
  8. 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...
  9. 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...
  10. 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?
  11. 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?
  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. T

    Y Plan heating system.

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

    Y plan for Vaillant eco tec 424 plus boiler

    Hi I am new on here, I have recently had a new Vaillant eco tec 424 plus boiler replacing my old knackered Ideal Classic. It was installed by an advanced Vaillant engineer. It is a Y plan system and the problem is that although it works when the programmer is calling for heat or water it works...
  17. rolyberkin

    Y Plan Advice Please

    I am probably being a complete numpty but I have a four zone heating system of which three of the zones and hot water are controlled by a couple of Honeywell ST9500C Two zone controllers. I have a further two underfloor heating zones which a connected via a Danfoss FH WC underfloor heating...
  18. stidge

    Y Plan advice

    Hi all, just after a bit of clarification please. Ive fitted a danfoss dual channel programmer. Ive had to link L-1 and also using 1 as HW OFF, to GREY, on 3 port valve Is that correct ? Also pump use to be connected to ORANGE, but as ive had to add Pump overrun from boiler,ive connected PUMP/...
  19. M

    2 port added to y plan

    Hi Plumber has asked me to wire in a Honeywell wireless stat and a new 2 port valve controlling separate radiator in conservatory into a y plan system wired it all up as a separate entity with the orange of the 2 port in with the Orange of the 3 port and the cylinder stat,works fine if turned...
  20. sythai

    Help please... Y plan

    Hi All Me and the plumber have been having some issues over the last couple of days, meant to be simple job of moving and installing new boiler/ moving programmer and wiring centre. Y-Plan (existing pipework/ now new electrics) Megaflow (existing) External pump (existing) Valliant Eco tech...

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