AIR COMPRESSORS AND VACUUM PUMPS
General Requirements: Variable speed drive (VSD) air compressors and vacuum pumps are best suited for trim operation and in single compressor air systems that have varying load because they have efficient part-load performance. VSD AIR COMPRESSORS Requirements: • Complete Table B1 and B2 of the “Process Systems Incentive Catalog Supplemental Data Sheet” for this measure. • List all existing compressors on the Supplemental Data Sheet, including compressors that will not be modified as part of the project. • Existing compressors being replaced by the VSD compressor should indicate “Removed” or “Emergency Back-Up” for “Use After.” • Existing compressors needed to meet the per-shift airflow requirements that will continue being used should indicate “Remain in Operation” for “Use After.” • Submit manufacturer specification sheets and/or a CAGI sheet at anticipated operating pressure for items installed. If available, submission of specification sheets for the removed compressor will expedite processing of your application. • Must be variable speed rotary vane compressor or variable speed screw compressor and operate a minimum of 2,000 hours annually to be eligible.
• Air compressors purchased or installed for backup or redundant systems do not qualify. • This is for new VSD compressors only; adding a VSD to an existing compressor does not qualify.
• Replacing an old VSD compressor with a new (same size) VSD compressor does not qualify. However, replacement of an old VSD compressor with a new, larger VSD compressor is eligible for the increase in hp over the old compressor. For example, if a 50 hp VSD compressor is replaced with a 75 hp VSD compressor, the 25 hp increase in capacity would be eligible for incentives. • Limited to one VSD compressor per compressed air system. Any exceptions, such as compressed air systems with large load variations requiring multiple VSD trim compressors or adding compressor capacity due to increased compressed air demand, require pre-approval. Call 800.762.7077 or contact your energy advisor before you start your project. • Replaced equipment must be removed. If an old compressor replaced by a VSD compressor remains connected as emergency backup, by signing the application, the customer is attesting that the old compressor will be used only in case of emergency and will rarely (if ever) operate. EQUIPMENT UPGRADES AND RETROFITS Measure Description Code Incentive Unit VSD Compressor replacing Non-VSD Compressor PS2196* $50 HP * Supplemental Data Sheet needed * Supplemental Data Sheet needed NEW CONSTRUCTION AND MAJOR RENOVATIONS Measure Description Code Incentive Unit VSD Compressor instead of Non-VSD Compressor N-PS2196* $50 HP * Supplemental Data Sheet needed PLEASE NOTE
PRO TIP Allowing a VSD compressor to handle the trim loads not only allows that compressor to operate efficiently, it also allows the other compressors in the system to be base loaded and run as efficiently as possible.
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