E1H-E4H Airflow Rates; Lifting The Drive - Danfoss VLT HVAC Drive FC 102 Operating Manual

Operating Guide | VLT® HVAC Drive FC 102
• Duct cooling.
• Back-wall cooling.
Duct cooling
Back-channel cooling kits are available to direct the heat sink cooling air out of the panel when IP20/Chassis drives are installed in Rittal
enclosures. Use of these kits reduce the heat in the panel and smaller door fans can be specified.
Back-wall cooling
Installing top and bottom covers to the unit allows the back-channel cooling air to be ventilated out of the room.

4.6 E1h-E4h Airflow Rates

For E3h and E4h enclosures (IP20/Chassis), at least 1 door fan is required on the enclosure to remove the heat not contained in the
back-channel of the drive. It also removes any additional losses generated by other components inside the drive. To select the
appropriate fan size, calculate the total required airflow as shown in
Table 9: Airflow Rates
Drive
Door fan/top fan [m
E1h 510 (300)
E2h 552 (325)
E3h 595 (350)
E4h 629 (370)

4.7 Lifting the Drive

LIFTING HEAVY LOAD
The weight of the drive is heavy and failure to follow local safety regulations for lifting heavy weights may cause death,
personal injury, or property damage.
Ensure that the lifting equipment is in proper working condition.
-
Check the weight of the drive and verify that the lifting equipment can safely lift the weight.
-
Maximum diameter for the lifting bar: 20 mm (0.8 in).
-
The angle from the top of the drive to the lifting cable: 60° or greater.
-
Test lift the drive approximately 610 mm (24 in) to verify the proper center of gravity lift point. Reposition the lifting point if
-
the unit is not level.
Always lift the drive using a lifting bar inserted into the lifting eyes. See
Danfoss A/S © 2020.01
3
/hr (cfm)]
W A R N I N G
table 9.
Heat sink fan [m
994 (585)
1053–1206 (620–710)
994 (585)
1053–1206 (620–710)
illustration 8.
Mechanical Installation
3
/hr (cfm)]
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