Danfoss VLT AQUA Instruction page 41
Low harmonic drive
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Also See for VLT AQUA:
- Programming manual (298 pages) ,
- Design manual (228 pages) ,
- Instruction manual (205 pages)
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VLT AQUA Low Harmonic Drive Instruction
Manual
External ducts
If additional duct work is added externally to the Rittal cabinet, the pressure drop in the ducting must be calculated. Use the charts below to derate the
adjustable frequency drive according to the pressure drop.
Figure 4.20: D frame Derating vs. Pressure Change
Drive air flow: 450 cfm (765 m
Figure 4.21: E frame Derating vs. Pressure Change (Small Fan), P315
Drive air flow: 650 cfm (1105 m
3
/h)
3
/h)
®
MG.20.T1.22 - VLT
is a registered Danfoss trademark
4 How to Install
4
4-25
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