ENER Lot 21 - Central Heating and Cooling products (Comfort Chillers, High Temperature Process Chillers)
Regulation 2016/2281 affects High Temperature Process Chillers and Comfort Cooling Chillers with rated cooling capacity below
2.000 kW. For Comfort Cooling Chillers, compliance is based on either Fan Coil application or Cooling Floor application. The
manufacturer’s technical datasheet is to specify application(s) in compliance.
A new KPI
Ecodesign regulation introduces new Minimum Energy Performance Standards for Comfort Cooling Chillers (SEER), and
Process Cooling Chillers (SEPR). In the case of SEPR it will be calculated in a similar way as for process chillers brine.
In the case of (η s,c ), it will be calculated in a similar way to η s,h , used for comfort heating applications.
ƞ s,c (%) =1/CC x SEER -∑ F i
SEER – Seasonal Energy Efficiency Ratio CC – Conversion Coefficient
Ratio between the annual cooling demand and the annual
electrical input energy over the entire cooling season.
SEER is calculated using standard EN14825, which takes the
following into account:
• S
easonal efficiency while the compressor is running
(SEERon)
• E
lectrical consumption when the compressor is not
running: crankcase heater, standby or OFF mode European average coefficient that represents the amount of
primary energy required to obtain electricity.
CC is defined by the regulation with a constant value of 2,5.
A better Indicator Similar to current ESEER
η s,c and SEER and SEPR are better performance indicators for
cooling, as they take into account temperature bins and hours
based on weather data from cities throughout central Europe. Seasonal Energy Efficiency Ratio (SEER) is calculated similar
to Eurovent Seasonal Energy Efficiency Ratio (ESEER). SEER
however uses a different set of ambient temperatures and
different weighting as a reference. As a result, SEER values
are ALWAYS less than ESEER values.
As displayed on the chart below, Process Chillers (SEPR) account
for a wider range of temperatures than Comfort Chillers (SEER),
which only consider temperatures down to 15°C.
∑ F i – Correction Factors
Water-cooled chillers
∑ F i = 8%
120
450
100
400
350
∑ F i = 3%
Air-cooled chillers
300
250
200
150
100
D
80
B
60
40
C
Eurovent Comfort
Ecodesign Process
Ecodesign A/C Comfort
D
20
50
0
-20 -15 -10 -5
0
5
10
15
20
25
30
0
-20 -15 -10 -5
35
Ambient temperature [°C]
Bin hours Process Chillers (SEPR)
A
B
C
0
5
10 15
20
Ambient temperature [°C]
25 30 35 40
Bin hours Comfort Chiller (SEER)
Eco-Design Requirements for Process Chillers High Temperature
MEPS - Minimum Efficiency Performance Standards = SEPR
Heat transfer medium
at the condensing side
Air
Water
Minimum SEPR
value Minimum SEPR
value Minimum η s,c
value Minimum η s,c
value
Rated refrigeration
capacity TIER 1 (Jan'18) TIER 2 (Jan'21) TIER 1 (Jan'18) TIER 2 (Jan'21)
P A < 400 kW
P A ≥ 400 kW
P A < 400 kW
400 kW ≤ P A < 1 500 kW
P A ≥ 1 500 kW 4.5
5.0
6.5
7.5
8.0 5.0
5.5
7.0
8.0
8.5 149
161
196
227
245 161
179
200
252
272
90