UK VRF GEN 24 - Flipbook - Page 43
VRF SYSTEMS
VRF SYSTEMS INDEX
SEER and SCOP following EN-14825
When better partial load, better efficiency is achieved in real operation. The EN-14825 is showing the way to calculate
considering full year operation hours at different conditions. Panasonic ECOi EX is designed to save energy in any partial
load condition. During most operation hours a system is under partial load conditions, 80% of total operation hours is less
than 70% of full load.
In below graphs is the example for average ambient conditions, this uses Strasbourg ambient conditions for calculation.
Outside temperature distribution.
Outside temperature distribution.
Time distribution (hours / year)
Time distribution (hours / year)
250
400
COP calculation point
350
200
300
250
150
200
100
150
100
50
EER calculation point
0
-10
0
17
19
21
23
25
27
29
31
33
35
37
50
39
-8
-6
-4
Cooling mode temperature (°C)
-2
0
2
4
6
8
10
12
14
Heating mode temperature (°C)
In the characteristics EER and COP only a single temperature for the assessment of the efficiency is taken as a basis in each case. Data calculated under EN-14825 conditions, not additional saving function
considered for this calculation.
Compressor frequency according to ambient temperature and building design.
SEER and SCOP values
ECOi EX models have superior seasonal space cooling /
heating efficiency following not only EN 14825 but also
COMMISSION REGULATION (EU) 2016/2281. This
regulation requires to use “η” values in the technical
documents.
During commissioning, Panasonic can further
increase efficiency by "20%" increasing
evaporation refrigerant temperature range, for a
higher efficiency and lower energy consumption.
Please visit our websites www.aircon.panasonic.eu or www.ptc.panasonic.eu.
SEER / SCOP
ESEER (W/W)
10,00
8,00
7,00
7,56
7,43
6,96
7,23
9,00
6,74
8,67
8,00
6,43
6,00
9,33
7,03
7,94
7,00
5,00
7,73
7,19
6,95
6,00
4,79
4,00
6,18
4,72
4,27
4,28
4,05
4,29
4,09
5,00
4,00
3,00
3,00
2,00
2,00
1,00
1,00
0
0
8 HP 10 HP 12 HP 14 HP 16 HP 18 HP 20 HP
SEER
SCOP
8 HP 10 HP 12 HP 14 HP 16 HP 18 HP 20 HP
8 HP
10 HP
12 HP
14 HP
16 HP
18 HP
20 HP
ESEER
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