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3.8 Sound Level
• In the below tables, Sound level of products with standard fans are given in db(A) (decibels)
for 3 m distance. Values are obtained from fan manufacturers, and they are only for making a
comparison, in different installation conditions different values can be obtained.
Sound levels are calculated according to EN 13487 standard.
MB
No. of Fans
Fan Dia.
Ø250
Ø250
Ø300
Ø300
MW
No. of Fans
Fan Dia.
Ø300
• Earpiece must be worn when sound pressure level is over 85 dB(A).
3.9 Capacity Measurement
• Measurement points are taken as shown below.
•
Tr: Cold room temperature
Te: Evaporation temperature
Tsup: Superheating temperature
For optimal cooling performance (Tsup-Te) should be 0,7 times bigger than (Tr-Te)
1
2
3
33
-
-
37
-
-
37
40
42
41
44
46
1
2
3
40
43
45
Figure 3.8.1 Measurement point
11
56808001-02
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