heat pump | Page 2

heat pump

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  1. C

    Dimplex 3-phase Air Source Heat pump (with Heatmeiser Control manager)

    Dimplex 3-phase Air Source Heat pump comes with Heatmeiser Control manager. Selling for a Customer - this item was unpacked, placed into position and wired and plumbed in. It was never, however, used as the Electricity Supplier could not install 3-phase power to plot as agreed. This unit was...
  2. marksparky

    ground source heat pump!?

    hi folks have a job coming up to price and heating is underfloor via a gshp, single phase supply and running on econmy7 tariff i believe, i havent wired a heat pump before and waas wonderin if some of u hav any experience in this type or similar system and cud give me some pointers as to wat...
  3. E

    Heat pump

    This unit requires a internal and external mode of isolation, a spur inside and a rotary switch for the controls outside, being that some of this equipment is outside I assumed that an RCD protected circuit is required, the manufacturer warns against a 30ma rcd as the unit may cause nuisance...
  4. D

    Zs on ground source heat pump

    Test readings on ground source heat pump are showing R1 + R2 as 0.03 ohms, zs reading taken at rotary isolator for the pump is 0.27 ohms. Protective device is a 63A type d mcb, run of cable is approx 7 metres, wired in 16mm t & e, ze is 0.11 ohms, max for a type d is 0.15 ohms so i'm well over...
  5. R

    Nu-Heat Ground sorce heat pump boilers?

    Hi, does anyone have any experiance with ground sorse heat pump boilers by 'nu-heat'. Ive had a nightmare getting information just to first fix the cables between the controlls, tanks sensors and boiler. If Im totally honest, a heating system even with underfloor heating zones, or hotel systems...
  6. D

    sub db for heat pump

    hi guys, the company supplying the heat pump for the house i'm doing recommend supplying it with a sub db. the heat pump is 12kw. my plan was to run a 10mm t+e and a seperate 10mm earth wire from the consumer unit off a 50amp type c breaker to a 3way db adjacent to the heat pump and wire all the...
  7. sythai

    Air Source heat pump wiring...

    Has anyone wired up one of these before: Airsource heat pump? Thanks, Sy
  8. sythai

    Air source heat pump, solar and underfloor heating advice...

    Evening all.... More questions again, thanks in advance chaps. Basically part way through a job where they are having: Underfloorheating (wet system) Airsource heat pump Solar ... just trying to suss it all out, have hardly ever done any heating systems before, in at deep end here and...
  9. A

    Heat pump - Locked rotary amp vs full load current

    Hi all I'm running a supply to a customers new pool and have the spec from the pool people. In the heat pump section it states: 20A main supply fuse, but then states that the LRA is 66Amps, and the SLA is 14.3 Amps. Am I right that the LRA (locked rotary amp) is the startup current, and that...
  10. J

    Ground source heat pump help!!!!!

    Hi, having a bit of trouble at the moment figuring out installation of a ground source heat pump. The electricicty company have ran two supplies to a new build. One 240v and the other 415v. The 415v supply is for the heat pump. Has anyone out there got any information what so ever on...

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