valve

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  1. R

    Additional port valve

    Evening all, Just after a bit of guidance as heating systems are not my strongest. Turned up to a job which has a green star 30si combo boiler. The boiler was controlled by 3 wire wired r/stat. The electrician before me installed a two zone uhf In new extension with two neostats. There was a...
  2. A

    3 Port valve actuator

    Hi just looking to see if anyone has seen these particular actuators in 24V? there are no details on the actuator I have and it isn't motoring I suspect that during the course of a recent panel upgrade someone has sent a 24v supply to the actuator that I assume is 240v.
  3. F

    New install. Is there an way to lengthen zone valve wiring.

    Evening all. This afternoon I've been have a look at the heating system install at a recent rewire. During first fix the wiring center location was agreed with the plumber. It's an S-plan with ufh, however the zone valves are located 4m apart so neither of the standard zone valve cables will...
  4. M

    Electrician Jobs Relpol Relay 8 pin with a zone valve and circulating pump

    I have some problem to hook up a circulating pump with a zone valve and 1 thermostat to control it, can you help me to hook up this correctly.
  5. markythesparky

    Very strange Zone valve problem

    Hi guys, I have a really odd one for you all. About four years ago we installed a heating systems for a swimming pool using various items but the main part of the heating was a Honeywell zone valve controlling the boiler. The valve was controlled in the usual way via a programmer and stat...
  6. P

    EcoTec Plus 424, VR66, VRT350F - Y system 3 port valve problem

    Hello, I am new here but desperate for help as this is first time I am stuck on regular boiler Y system wiring. I have installed EcoTec Plus 424 with clipped on VRT350F and control centre VR66. I have wired all as requested in manual and get problem with 3 port valve. It get's stuck in either HW...
  7. J

    Safe use of an old valve radio

    Apologies if I'm posting this question in the wrong forum. I have an old valve radio that has been rewired internally so is basically sound. The problem is it has no provision for a protective earth, the internal chassis is wired to neutral (was live before rewiring!) and it is far from double...
  8. R

    won't install new cooker without new extraction!?

    Hi all, We have a problem replacing a gas commercial cooker, it's in a small commercial setting (a care home). We just want to swap the old cooker for a brand new equivalent but are being told that no one will do the swap/install unless we also install a canopy extracting externally (rather...
  9. dlt27

    Underfloor heating help

    Hi, hope somebody can help. I am currently wiring a new wet underfloor heating system for builder. The plumber has fitted a 2 port valve and the pump that is part of the manifold. The existing system is a y plan. I was going to leave existing system how it is and fit a wireless programmable stat...
    • dlt27
    • Thread
    • boiler heating switch underfloor underfloor heating valve valves
    • Replies: 18
    • Forum: UK Electrical Forum
  10. A

    Nest 3G wiring help

    Hi all, this is my first post so please be kind. I installed a Nest thermostat a few months ago I have a gravity fed system powered by a Baxi Bermuda Back Bolier, I have a Honeywell 4043 2 port valve, I based the insatallation around a c plan as the wiring appeared to follow this logic although...
    • Arb
    • Thread
    • cylinder nest thermostat valve water wiring wiring help
    • Replies: 19
    • Forum: Central Heating Systems
  11. V

    Please can anyone help a DIY guy? ...CH problem....

    Good morning! I have a problem with my central heating system…..and am wondering if anyone can help. The system: 1. 15 year old detached house, with a 15 yr old Honeywell Y Plan CH system, which to all extents and purposes works FINE. 2. Boiler is a traditional ‘IDEAL Classic’ boiler, fitted...
    • vintageaxeman
    • Thread
    • anyone diy heating honeywell please problem system valve water
    • Replies: 24
    • Forum: Central Heating Systems
  12. N

    Heating and hot water only work independently...

    Hi there, Just after a bit of advice for a family members central hesting system. They have an old style Centroller 3000 controller which controls the central heating and hot water. The system is a back boiler (not a combi) with a hot water tank, pump and a honeywell 3 port valve. Central...
    • Noob2013
    • Thread
    • central controller electrical work heating hot water valve water
    • Replies: 6
    • Forum: Central Heating Systems
  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?
    • midgetman
    • Thread
    • additional attach boiler diagram terminal valve wiring y plan
    • Replies: 1
    • Forum: Central Heating Systems
  14. P

    Honeywell wireless stat DT92E

    hi guys, customer has no thermostat for his heating so he brought a Honeywell dt92e. I am trying to install it but can't link it up with the programmer (2 channel Drayton) I have wired the stat up with a perminant live and it fires the boiler. But I can't get it to work properly with a...
  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. kkkkk

    Help Please - Altech Motorised Valve & Horstman Hrt3

    Hello people I have been called to a job after the plumber has left, and there is a cable with 6 wires coming from an Altech motorised valve model ALTHC010 - the wires are brown, blue, green/yellow, plus orange, grey and white - this is sticking up out of the floor. Then I have been given a...
  17. 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...
  18. J

    s plan with underfloor without zone valve.

    Evening all, I'm in the midst of connecting above system, the plumber is adamant it will work without a 2 port but I'm struggling to make sense of it. I've got a system boiler with s plan and a single zone UFH manifold. Could anyone please give me some pointers re wiring without the back feed...
  19. P

    Multiple Pumps on Heating Systems

    Hi all, Up until now I have mainly been dealing with bog standard Y and S plan heating systems with single pumps albeit sometimes adding smart control systems etc but in the last week I have come across a couple of installations where there are multiple valves and pumps in the system and I am...
  20. B

    Motorisec valve

    Hi All, I am working in a property where there is a system boiler which is controlled via a standard timed programmer however the client has asked that there is to be a motorised zone valve installed at lounge radiators, with a thermostat in the lounge, so that the temperature of this room is...

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