valves | Page 2

valves

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  1. astormatt

    Pumps and Relays

    Hi all I am working on a job and I am having trouble getting my head around it. Normal systems are fine but this is causing me a headache. It is an S plan with an additional pump so both the DHW and CH have a pump and a valve, I know that the pumps have to be split due to it back feeding but...
  2. M

    2 three port valves with boiler running constantly

    Hi Guys, I've just looked at a heating system which has a few issues like immersion stat faulty. This is the current set up - Upstairs has H/W tank (that also feed downstairs) and heating both fed via a 3 port valve to a pump down by the boiler. Downstairs has heating fed via a 3 port valve...
  3. Leesparkykent

    Y-plans and 3port valves explained

    Thought id throw this together.
  4. C

    Valiant 831 Boiler - Wiring of thermostats and motorised valves?!

    Sorry in advance for the long thread! Just want to make sure i provided as much detail as possible. We are currently building an extension and whilst devastating the house have decided to install a new boiler, we have also opted for a John Guest UFH system to be installed in the new extension...
  5. N

    Volt free vokera gas boiler

    Just wondering can anybody help me. The boiler I'm working with is a vokera verve combi boiler. the house has a three zone programmer so hot water, first floor rads and second floor rads each controlled by a 2 port motorised valve.. the basement of the house has underfloor heating.. there is a...
  6. T

    Combi with zone valves!!!

    Hi guys, first ever post, so here goes. Been connecting a heating system today in an extension we have been carrying out. Worcester Bosch Combi with 2 x new valves, one for existing radiators, one for new under floor heating throughout the ground floor. The ufh system is Upinor which has it's...
  7. D

    s plan with momo valves

    Heating controls not my strong point but trying to change that! I have an s plan system with momo valves and have a question with regards to the closing of the valves. To close the heating valve the white goes on its own to CH off on the programmer. To close the hot water valve the white goes to...
  8. C

    help needed with heating system, please and thank you

    hi, system has 2xCH & 1xHW Zones system also has solid fuel back boiler system has 2x CH Motorized valves Garage = Oil Boiler & Pump (No over-run) Hotpress = Cylinder, 2 motorized valves, CH circulating pump & Back boiler pump, cylinder stat, back boiler stat so there is 3 zone time clock...
  9. A

    wiring timeclock and valves

    What does the NC terminal on the HW side do on a time clock? The wire from the NC terminal is connected to the grey of the 3 port valve. A 3core flex goes to the cylinder stat. The brown is connected to the NO hot water terminal on the timeclock. The blue wire from the cylinder stat is connected...
  10. G

    Valves on a combi volt free

    Hi all, got a combi boiler with volt free switching for the central heating all working fine, I put a conservatory up and put underfloor heating in , I asked the plumber to put a value on the UFH pipe and the CH Pipe so I could control them separately , from a salas wireless programmable stat...
  11. S

    Intasol valves?

    Has anyone got any experience of these units? I'm looking at doing a plate heat exchanger ( for mains pressure ) with vented tank system and was going to use zone valves for control. But, then I stumbled on these. Any ideas?
  12. B

    Frost stat installation

    Can anyone help me I'm trying to wire up a new heating system any wiring diagram would be great. System is: rhino savana condensing system boiler, megaflow cylinder, frost stat, danfoss FP programmer, zone valve for heating and same for water. many thanks Bluerob
  13. T

    Installing 2 & 3 Port valves

    Hi Everyone Been asked to change a sticking 3 port valve on a domestic heating system, but dont do much heating work. A pal told me to cut cable of old valve and terminate it in connector bolcks and connect the valve to this thus not disturbing the 10 way junction box. I will look at putting...
  14. B

    Danfoss zone valves!!

    I've just installed an s plan heating system using danfoss zone valves, the customer has rung to inform me that the boiler is staying on constantly, I made a school boy error that I noticed afterwards, I connected the heating system up using a Honeywell diagram! Can someone tell me if danfoss...
  15. i=p/u

    Heating system

    Looking at a heating system tonight, grasslin 24 hr time clock and 3 Zone valves ,down stairs heating , upstairs heating and hot water. Upstairs heating and hot water not firing boiler. But valves are lit up. So when I turn upstairs heating stat down the valve light goes out but you don't...
  16. C

    Installing an additional room thermostat

    I have a simple central heating system with a traditional Baxi Solo 2 60RS boiler supplying heat to radiators around the house. The room thermostat is located in the main bedroom and so calls for heat only when the temperature in that room requires. When heat is required this thermostat is...
  17. M

    combi boiler and zone valves compatability

    hello i guess this will work and i will explain as best as i can ) new build with ideal combi boiler with basic normal wiring L/N/E with stat link they have installed two zone vales one for the front room rads and one for the rest of the house i have been given two honeywell wirless...
  18. F

    s plan central heating 3 zone valves

    help!! I am working with a made plumber, he has installed a S PLAN SYSTEM, but with a diverter valve ( witch is a two port eebszone valve ) near the cylinder. so in total there are 3 zone valves apparently this gets wired to the cylinder stat??? cant find any wiring diagrams to follow, they all...
  19. R

    2 hardwired thermostats

    A thermo stat upstairs wired back to boiler and a thermostat downstairs wired back to boiler? Why would this be. Should it not be the up and down be wired in series back to boiler?
  20. S

    Heating on when timer off?

    Up till now my heating has been working fine, on/off with timer, room-stat and tank-stat etc. The other day the central heating mcb tripped and after resetting the heating is constantly on even when the timer says off. Lowering the room-stat temp does still turn the heating off. Has anyone had...

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