GE Industrial Solutions AF-650 GP Top & Bottom Cover Duct Kit - NEMA 3R - Manual

This instruction sheet is for the installation of NEMA -3R kits available for the AF-6 series drives frames
43, 44 and 52. These kits are designed and tested to be used with IP00/Chassis drives in welded box
construction enclosures with an environmental rating of NEMA-3R or NEMA-4. The NEMA-3R enclo-
sure is an outdoor enclosure that provides a degree of protection against rain and ice. The NEMA-4
enclosure is an outdoor enclosure that provides a greater degree of protection against weather and
hosed water.
Using these kits as described removes 85% of the losses via the back channel using the drive’s main
heat sink fan. The remaining 15% must be removed via the door of the enclosure. (Refer to Note 2 for
air flow requirements.)
This kit has been tested and complies with UL environmental rating Type-3R.
Notes:
1. The current rating of 43 and 44 frame drives are de-rated by 3% when installed in a NEMA-3R en-
closure. 52 frame drives require no de-rating when installed in a NEMA-3R enclosure.
2. A doorfan(s) is required on the enclosure to remove the heat losses not contained in the backchan-
nel of the drive. The minimum airflow required (at the maximum rated ambient temperature) for the
43 and 44 frame drives is 391 m
3
/h (230 cfm). The minimum airflow required (at the maximum rated
ambient temperature) for the 52 frame drive is 782 m
3
/h (460 cfm). If additional heat losses are
added within the enclosure a calculation must be made to ensure the proper airflow is provided to
cool the inside of the enclosure.
INSTRUCTIONS
INSTALLATION OF NEMA-3R KIT FOR 43, 44 & 52 FRAME AF-6
DRIVES INTO WELDED ENCLOSURES
177R0109 February 25, 2010 DET-704a, Page 1
Kit Contents
•
Deflectors and vent covers
• Mounting hardware
• Gasket material
Torque Requirements
1. M5 screws/nuts torque to 20 in-lbs (2.3 N-M)
2. M6 screws/nuts torque to 35 in-lbs ( 3.9 N-M)
3. T25 Torx screws torque to 20 in-lbs (2.3 N-M)
Required Tools
•
Metric Socket Set, 7-19mm
• Socket Extensions
•
Torx Driver Set T10-T40
•
Torque Wrench 6-50 in-lbs (.7-6 N-M)
Attachment
Drawing 177R0107
Frame 43 Kit Part No. OPCDUCT433R
Frame 44 Kit Part No. OPCDUCT443R
Frame 52 Kit Part No. OPCDUCT523R
Used with:
AF-600FP & AF-650GP