Table Of Corrections - Noise Level - Danfoss InLine Manual

Table of corrections
If it is not possible to install the length of panel required to
achieve sufficient heat, the panel's effect can be increased
by increasing the fan speed above the nominal 1500 rpm.
As shown in the diagram, the heat effect increases propor-
tional to the speed of the fan.
1,6
1,4
1,2
1,0
0,8
0,6
0,4
0,2
0
500
Example:
An InLine panel of 3.0 metres provides, at a flow of 21 l/h, fan speed at 1500 rpm and a temperature set of 70/40/20°
an effect of 709 W.
To increase the effect to 900 W will entail a correction factor of 900/709 = 1.26. The diagram shows that the fan
speed has to be 1950 rpm, creating a noise level of approximately 32 dB(A).
Table are based upon actual measurements of the InLine
comfort panel's heat effect.
CONVEC
1000 1500
Fan speed, rpm.
VD.YC.D2.02
However, the motor power consumption and the noise level
will rise and it must therefore be ensured that the maximum
power consumption is not exceeded (see diagram page
24), and hence the power supply is not overloaded.
2000
Measurements are performed in accordance with the stand-
ard EN 442.
© Danfoss 01/2006
47
40
30
22
15
2500
15