valve

  1. bigspark17

    No motorized valve on upstairs rads

    Started a first fix today on barn conversion. Plumber has done first fix install as follows, ufh downstairs and rads upstairs, combi boiler. All straight forwad enough exept plumber has plumbed system heating wise as one and has only intention of putting one motorized valve on ufh but not on...
  2. S

    Bathroom fan/shower valve switch positions.

    Hello All I am currently doing the electrics for an en-suite conversion to a wet-room for a family member. They want 6 no. 230Vac recessed spotlights, a shaver point, extractor fan/light, shower mixer valve and underfloor heating. Having spent many hours on my knee's in the attic connecting...
  3. P

    British Gas UP2 failing to turn on Central Heating except when Hot Water is on

    OK, so I'm not a plumber but have a fairly good idea how this system works. I'm not alone with this problem either, there has been a similar post but it's old and doesn't have a resolution - though they have a temporary fix that doesn't work for me... Boiler: Baxi Solo 15HE Controller: BG UP2...
  4. G

    Powering motorised valve?

    Hello, I want to control a 12V DC motorised valve from a switch located on a wall - similar to a light switch. Something like this: MISOL 1 pcs of motorized ball valve G1/2" DN15 / 12VDC / 2 way / electrical valve: Amazon.co.uk: Welcome Is there a pre-built switch I could simply connect this...
  5. A

    help to wire combi boiler for underfloor heating and house radiators

    Hi there. Major cyber pint for anyone that can help me with this problem. I have a vokera vision c combi boiler( which has volt free connections) that has to do the house radiators and one room for underfloor heating. There is one motorised two port valve for Radiators and one for the...
  6. D

    Adding underfloor heating to a s-plan system

    I am doing the electrics for an extension, part of which is to add a wet underfloor heating system. The current heating is s-plan, the boiler has a pump overrun. The plumber has put in a 2port valve and pump which feeds one zone on the UFH with a remote programmable theromstat. The...
  7. H

    Wiring thermostat to Honeywell 2 port valve for failsafe

    Hi, So I have a Vaillant system as per my previous thread and I have now got a Vaillant VR 10 sensor in place of the thermostat strapped to the hot water pipe that goes to the taps (Is that the correct location or should it be the flow/return to/from the boiler?). I have the existing cylinder...
  8. G

    heating controls

    Hi folks looking for a bit of advice, my boiler fires up when there is no call for heating or hot water, the motorised valves for the heating and hot water are both closed but boiler still comes on, i thought that when the motorised valves are shut this cuts off the suply to the boiler and...
  9. H

    HW valve stays on all the time, never switches off (Vaillant ecoTEC 637/VR65/VRT360)

    Hi I'm having issues with my hot water valve which remains on all day until the vrt360 goes on standby at night. Quick breakdown of my setup as follows: Vaillant ecoTEC 637 system boiler w/eBUS VR65 Control Center via eBUS VRT360 Controller via eBUS 2-port valve for HW wired to VR65 using...
  10. VoltzElectrical

    central heating systems help!

    I have no experience in the installation or fault finding of, central heating systems. I don't do, and have rarely done, domestic work. I volunteered recently to look at an elderly lady's situation whereby the system had been installed, then altered as the room stat was relocated from the...
  11. P

    zone Valve Actuator

    Hi chaps. I've got no heating and after a bit of fault finding, I've found there's no switch feed coming from the actuator which then fires the boiler. The feed side to the actuator is present when you call for heat so couldn't this be linked to send the voltage to fire the boiler and by...
  12. C

    12v reading on all the negative connections on 240v system

    Had a strange experience today. customets t&p valve keep blowing on their hot water heater (sealed pressurised electric immersion heater fed from a water pump, pped in from a 5000 litre holding tank ) thought it might be the faulty valve first, after testing that and it being fine I went onto...
  13. M

    Mid position valve and underfloor heating

    Hi all, just installed a polypipe under floor heating system to an existing Y plan, the valve is a V4073A,with this system the UFH stat should independently operate the UFHeating from the existing central heating, the snag is with the time clock off and the UFHeating stat on both the UFH & the...
  14. M

    Zone heating

    Hi, I've never really had much to do with heating systems so just wondered what you require for a 2 zone system. Would a 2 channel programmer such as a danfoss and just two room thermostats work? Would each room stat have to be programable or would this just be ok to have one at the main...
  15. sythai

    Another heating one...

    Just about to have my y-plan system at home changed for combi.... Going to be running 2 heating zones off this. Rather than spend out and buy 2 x new 2port valves, could I use the existing 3port valve (which was only replaced last year.) Tell me if I'm being dense or is there a way, just...
  16. S

    Heating Experts.

    Aunties heating is playing up, when she switches on the heating it's not firing up the boiler. Hot water switched on it's doing as it should & firing up the boiler. Had a brief look at it in the passing & when the heating is turned on there's 240v going to stat, returning from stat to valve...
  17. K

    Cylinder stat seems trip rcd

    Hi, My heating system is a myson apollo 30b with a 3 way valve etc. The other day wife said was a popping noise coming from kitchen where the programmer and boiler is , on investigation i have found when you turn down the tank stat which is a drayton hts 3 it when it gets below the temp and...
  18. G

    y plan mid position valve

    Hi and thanks for looking any advice would be much appreciated I have a Y plan system Mid position valve stuck on heating and will not pass to middle or water customer just moved into home, new valve head fitted no luck and all wiring looks good any help appreciated thanks
  19. C

    controlling CH 3-port mid position valve with a 5V DC SSR

    I'm currently controlling a CH 3-port valve using a 5V DC SSR to switch a Finder 12V DC spdt 250V AC rated contacts eletromechanical relay. The 5V DC SSR is a Meder SIL05-1A72-71D & has a coil draw of 50mW (10mA). This SSR is controlled by an Arduino which has a max draw of 40mA per I/O pin...
  20. P

    Underfloor heating via an s plan system

    hello Can anyone help am looking for a diagram I have an splan system with an extra valve for the u /f heating

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