HIU Commissioning

Commissioning a Heat Interface Unit is essential in optimising its efficiency and maximising the units full potential, along with ultimately extending its longevity.

We will ensure your units parameters are accurately set up so that you aren't using or being charged for any unnecessary extra energy consumption that is usually caused by valve settings being set incorrectly.

As part of our commissioning we will also make sure that your heat meter is correctly set up and working so that the precise kWh usage is being recorded and sent back to your energy provider for accurate billing.

Heat Interface Unit Commissioning Checklist:

  • Flow temperature (T1)

  • Return temperature (T2)

  • System design Delta T

  • Cold pressure fill (1.5 bar)

  • PRV safety inspected

  • Strainer cleared of post install debris

  • Hot water target temperature set

  • DHW time to kitchen tap (45 seconds)

  • Is install in a hard water area (above 200ppm)?

  • If above 200ppm, has scale reducer been fitted?

  • Entire unit vented of air

  • Heating & controls tested

  • Pipe connections checked

  • Heat meter & kPa analysis

  • Differential Pressure tested

Get in touch with us today to book an appointment to have a Heat Interface Unit commissioned by one of our specialists engineers.

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