ashp

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  1. P

    Ashp external wiring

    Anyone installing ecodan heat pumps? Best cable type for wiring from rotary to heat pump unit? Trying to stay away from swa due to limited space with security cage.
  2. sythai

    ASHP - no switched live required ??

    Hi Guys.... Another ASHP coming up for us to hook up.... slowly getting my head round all the different variations of wiring them ! The next one is a full Bosch system 'compress 7000i.' Client seems to have paid for some helpful technical (Alto Energy) back up on this project for queries...
  3. sythai

    ECODAN ASHP... anyone hooked up one of these

    Hi Guys Just seeing anyone hooked one of these pre plumbed units up before : Mitsubishi Ecodan Assuming fairly straight forward compared some 'head scratchers' I've done recently. Possibly a power supply to inside unit + supply to outside unit + comms cable between + SL from heating 🤔 Plumber...
  4. johnglasto

    ASHP and Tesla battery

    I have a 11kw Air source heat pump heating our UFH. We're looking to fit a Tesla Pwerwall battery and have been advised that we should install a sort starter to avoid spikes when the ASHP starts up which could cause the battery to shut down. Does anyone have experience with such a situation...
  5. sythai

    ASHP again.... after bit of help please Guys

    Hi Guys Got few of these coming up now... 1st fixes done. Now the fun bit of 2nd fixes - bit of a head scratcher as none seem the same! 🤯 What I'm after help on is... I need to install a volt free relay if my switched live is 230v, which it is. Does anyone have a link of where I could get a...
  6. sythai

    3Phase ASHP - 16a RCBO/ TP

    Hi Guys Got a new build house coming up, has 3phase ASHP specified. Company commissioning the unit have specified to supplied via an RCBO, type C or D. Done quick google and struggling to find any reputable make of 16a 30mA RCBO/ TP that will do the job..... anyone help me on this please ...
  7. A

    ASHP pump compatibility with power Supply

    Hi All I’m new to the group and not actually an electrician. But please don’t hold that against me! I’m after some advice please. I’ve come to a point in my building renovation where we are about to install a heat pump. Stiebel Elton WPL 25AS the forms for the pump had been filled in and sent...
  8. driverman

    ASHP via sub main

    Hope OK to post here New build project. Property having detached double garage with an all electric studio flat above. The garage will be wired via u/g SWA sub-main. The AHSP for the house will be sited by the detached garage. At this point in time I'm proposing to wire the ASHP from the...
  9. The Solar King

    ASHP hybrid systems with Gas

    Does anyone have experience of fitting or performance of these systems? Several manufacturers including Worcester Bosch supply. I am very twitchy as to the efficacy of this solution. They look attractive especially where the thermal performance of the building is poor. However this is the very...
  10. S

    ASHP Query

    One of our customers is having ashp problems - although maybe not what you'd expect. I managed ashp installations in 2005/6 and did the training last year again but they aren't for us. I have some questions can someone help? It's a 9kw Danfoss with a buffer tank in a bungalow that's 114m2...
  11. Worcester

    ASHP and Microbore

    Anyone retrofitted an ASHP where the installation (12 years old) used 100 microbore? The house (large - 360m2 , built in 2001/2002 and needs 2 x 10kW heat pumps) has all radiators plumbed on 10mm microbore, we are going to have to increase the radiator sizes at each location so that we can run...
  12. SolarCity

    ASHP - similar rules as PV?

    We have a customer who has had an ASHP installed and it appears to be performing worse than predicted. The firm is refusing to send the MCS certificate until the full bill is paid - something which cannot be done with solar PV. I would have assumed that the rules are the same?
  13. jason121

    ASHP Seasonal performance factor

    Any comments about this statement, does this mean all the high temperature heat pumps or heat pumps running on existing radiators wont be getting the RHI payments. In addition, the Renewable Energy Directive sets out a minimum efficiency that heat pumps are required to meet in order to be...
  14. S

    ASHP Maintenance Costs??

    Had a call from one of our customers asking if we did ashp servicing. They had been quoted £400 from their installer for an annual service and replacement of refrigerant. This negates all savings made from having the ashp - it seemed a bit steep to me - does anyone else know what it should be...
  15. jason121

    Advice needed on ASHP

    Can someone verify that when retro fitting the heat pump system for Radiators, to achieve the maximum RHI, the designer must design the system at 45 degrees and replace all Radiators as per the emitter design guide?????? OR If designer leaves existing radiators, design the system between 55...
  16. jason121

    Ashp

    Does anyone know how to improve flow rate on ASHP for hot water system, works fine on central heating , goes into fault code flow rate when heating my tank.
  17. dansk

    ASHP - Thoughts please

    Hi - As another form of renewable, what are your thought's and experience with ASHP - im thinking of adding them to my services but i read a lot of negative press about them, and from i can see they seem a really good idea for people who are not on the Gas network.
  18. D

    Wiring Ecodan ASHP control unit to Polypipe UFH

    Hi All, firstly i apologise for the length of this message but i am going round in circles with polypipe and Ice Energy. I've just had the second fix completed on my self build and am concerned re the wiring set up with my polypipe UFH and my 14KW mitsibushi Ecodan ASHP provided by Ice...
    • damosas
    • Thread
    • ashp control electricians' talk ufh unit wiring
    • Replies: 4
    • Forum: Central Heating Systems
  19. E

    Info required on ASHP

    Hi everyone , would like some help is poss , Need to purchase for install 24,000btu air source heat pump for 30metre sq conservatory , would anyone be able to advise me on what make and model is right to buy .... Any help would be helpfull as i dont want to purchase a inferior make .....many...
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