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VRF - Variable refrigerant flow
Certification manual
Certification Manual
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Technical Certification Rules

Scope of the programme

Are included in the scope :

  • Single module outdoor units for VRF units with a cooling capacity above 12kW
  • VRF units below 12 kW, declared and published as combination of outdoor and indoor units according to the testing limits

with the following characteristics :

  • Air or water source,
  • Reversible, heating-only and cooling-only.

Heat recovery units are included in the scope but the heat recovery function is not certified.

High ambient systems are included in the scope as an option (because not sold on the European market) but tested under standard conditions as specified in TCR-15.

Are excluded from the scope :

  • VRF systems above 12 kW with data declared and published as combinations of outdoor(s) + indoor(s).
  • Multiple module outdoor units.
  • Units not fulfilling the requirements of Regulation 2016/2281.

Heat recovery units are included in the scope but the heat recovery function is not certified.
High ambient systems are included in the scope but tested under standard conditions as specified in TCR-15.

Certify-all: The programme covers all VRF systems with the limitation of cooling capacities of approved independent laboratories. The company participating to this certification programme shall certify all standard production models below the following cooling capacity at standard conditions:

Capacity   Max No. of connected indoors
   Ducted horizontal  Cassette Wall mounted Ceiling suspended Maximum airflow (total of all the indoor units)
P ≤ 12 kW  4 2 / / 17900 m3/h
12 < P < 30 kW (in both modes) 4 4 / /
30 (in one mode) ≤ P < 50 kW (in both modes) 6 6 6 6 36000 m3/h
 50 (in one mode) ≤ P ≤ 100 kW
(in both modes)
 8 8 8 8

Definitions

Definitions given in EN 14511-3:2018 and EN 14511-3:2018 Annex I apply. 
Definitions given in EN 14825:2018 apply.
Definitions given in EN12102-1:2017 apply. 
Definitions given in standard ISO 15042:2017, SASO 2874:2016 and GSO 03 Draft.

In addition, the following definitions apply:

System capacity ratio
Ratio of the total stated cooling (heating) capacity of all operating indoor units to the stated cooling (heating) capacity of the outdoor unit at the rating conditions.

Outdoor cooling capacity (Pc, outdoor)
Total cooling capacity of the outdoor unit measured as the total indoor cooling capacity unit

Outdoor heating capacity (Ph, outdoor)
Heating capacity of the outdoor unit measured as the total indoor heating capacity unit

Outdoor power input (Pe, outdoor)
Effective power input measured on the outdoor unit

Outdoor energy efficiency ratio (EERoutdoor)
Ratio of the outdoor cooling capacity to the outdoor power input

Outdoor energy efficiency ratio (COPoutdoor )
Ratio of the outdoor heating capacity to the outdoor power input

System energy efficiency ratio (EERcombination)
Ratio of the outdoor cooling capacity to the power input of the system

System energy efficiency ratio (COPcombination )
Ratio of the outdoor heating capacity to the power input of the system

Certified performance items

Nominal Efficiencies:

  • Outdoor cooling capacity at standard rating condition
  • Outdoor heating capacity at standard rating condition 
  • Effective power input (cooling and heating) at standard rating condition
  • Outdoor EER at standard rating condition
  • Combination Energy Efficiency Ratio in cooling EER for units
  • Outdoor COP at standard rating condition
  • Combination Coefficient of Performance in heating COP for units ≤ 12 kW

Seasonal Efficiencies for Cooling :

  • Pdesignc
  • SEER & ηsc for VRF units > 12 kW
  • Annual energy consumption Qce for units ≤ 12 kW
  • SEER energy class for units ≤ 12 kW
  • Auxiliaries (Pto, Pck ..) for cooling mode
  • Part loads (Capacities & Efficiencies)

Seasonal Efficiencies for Heating :

  • Pdesignh
  • SCOP & ηsh for VRF units > 12 kW
  • Annual energy consumption Qhe for units ≤ 12 kW, for each declared climate
  • SCOP energy class for units ≤ 12 kW, for each declared climate
  • Auxiliaries (Pto, Pck ..) for heating mode
  • Part loads (Capacities & Efficiencies), for each declared climate

Acoustics :

  • Sound power level in cooling
  • Sound power level of the indoor units for units ≤ 12 kW
  • Sound power level in heating (only for reversible units)
    • A-weighted outdoor side sound power
    • A-weighted sound power radiated from the duct (ducted units)

High ambient units :

  • Cooling capacity at T1
  • Combination Energy Efficiency Ratio in cooling EER at T1
  • Cooling capacity at T3
  • Combination Energy Efficiency Ratio in cooling EER at T3
  • Cooling capacity at T4
  • Combination Energy Efficiency Ratio in cooling EER at T4
  • Operability at 52°C for 2 hours