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valve

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  1. K

    Shower digital mixer valve compatibility with regular fittings

    I have a pretty basic question on suitability of a shower digital mixer valve. Checked with the the manufacturer Mira, who insisted that it should only be used with their shower heads, etc. Asked why, looked around, etc but can't seem to find a clear answer why. Basically I have read the manual...
  2. A

    3 way valve Advice needed please

    Hi New to this forum. A DIYer but not one that messes about with electrics but this question is just for interest. We have just moved to a property and I am trying to sort out the heating system. 1 Downstairs is a hot air system which is totally outdated and fails to heat the upstairs 2...
  3. 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...
  4. 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.
  5. 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...
  6. 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.
  7. 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...
  8. 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...
  9. 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...
  10. 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...
  11. 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...
  12. 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...
  13. 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...
  14. 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...
  15. 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?
  16. 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...
  17. 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...
  18. 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...
  19. 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...
  20. 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...

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