VLT
®
6000 HVAC
160
MG.60.B1.02 - VLT is a registered Danfoss trade mark
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Derating for ambient temperature
The ambient temperature (T
AMB,MAX
) is the maximum
temperature allowed. The average (T
AMB,AVG
) measured
over 24 hours must be at least 5ºC lower.
If VLT 6000 HVAC is operated at temperatures above
45 ºC, a derating of the continuous output current is
necessary.
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Derating for air pressure
Below 1000 m altitude no derating is necessary.
Above 1000 m the ambient temperature (T
AMB
) or
max. output current (I
VLT,MAX
) must be derated in
accordance with the diagram below:
1) Derating of output current versus altitude at
T
AMB
= max. 45°C
2) Derating of max. T
AMB
versus altitude at 100%
output current.
