Certificazione

Torna alla lista
Heat pumps NF Hybrid
Certification manual
Certification Manual NF
Documents
Certification reference standard

Scope of the programme

The products covered by the certification reference standard are hybrid appliances combining a boiler and a heat pump (HP). The maximum certified nominal thermal output of the HP is fixed at 100 kW and the maximum certified effective power output of the liquid/gas fuel-fired generator is fixed at 70 kW.

These appliances are used to power hot water heating systems and produce domestic hot water (DHW). These appliances comprise:

  • a type-C or type-B liquid/gas fuel-fired generator featuring the CE marking
  • a HP with an electrically driven compressor:
    • “outdoor air/water” type, non-reversible
    • “extracted air/water” type, non-reversible
  • a regulator for optimizing the operation of the generator and heat pump
  • a storage tank for the domestic hot water function
  • one or more exchangers
  • a hydraulic circuit switching component
  • accessories such as:
    • a DHW circuit circulation pump
    • the lengths of pipes connecting the various components
    • end connections

In the case of hybrid appliances with separate components, the assembly of such components is deemed to be an inseparable system for determining the certified characteristics/performance.

Certified performance

  • The energy performance:
    • coefficient of performance (COP)
    • heating capacity (Ph)
    • electric input power (Peh)
  • Sound power level (Lw)
  • Share of electrical power for the auxiliaries (Taux)
  • For variable power regulation HPs :
    • minimum load rate in continuous operation (LRcontmin),
    • COP at LRcontmin,
    • performance correction coefficient at LRcontmin (CcpLRcontmin).
  • For DHW:
    • The heating-up time (th)
    • The spare capacity (Pes)
    • The reference hot water temperature (q’WH)
    • The maximum volume of usable hot water (VMAX) or the Volume of mitigated water at 40 °C (V40)
    • The DHW primary energy efficiency (by storage) (PEEDHW-PE)

Definitions

A range of hybrid appliances is a set exclusively comprising:

  • liquid/gas fuel-fired generators of the same type (C or B), covered by the same CE declaration of conformity issued by the manufacturer
  • HP such as defined in the NF 414 standard
  • a tank such as defined in the NF 414 standard
  • a hydraulic circuit for the DHW function of the same principle and using exchangers of the same technology
  • the same hydraulic or refrigerating circuit switching component technology
  • the same control process.