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Our "Spare Me the Bypass" program offers both short- and long-term savings. The use of a bypass with a fan or pump drive is an expensive habit that persists only in North America, said Jim Chmielewski, HVAC Manager for Control Techniques. “Years ago it made sense, but today our HVAC drives are both extremely reliable and easy to swap out,” he said explaining the company’s “Spare the Bypass” energy and cost savings program. Good Reasons to "Spare the Bypass"
Note: Depending on the application, our innovative VFDs can pay for themselves through energy savings in a few months.
The Best Reason to "Spare the Bypass" To demonstrate the confidence Emerson has in its drive products, Control Techniques will supply spare drives (one per frame size) for the ordered drives on projects where five or more drives are used without bypasses. The spare drives will be supplied with one-year payment terms. If after one year any of the original units within a frame size has failed, the unit will be repaired under warranty and the spare supplied will be free. If after one year, the original drives supplied have not failed, the invoice for the spare for that frame size will become due and payable. For example, four 7.5hp supply fans and four 5hp return fans can utilize one spare drive (a 7.5hp). The eight drives are invoiced with standard terms and conditions, and the spare drive is invoiced with one-year payment terms. If any of the eight drives fail during the first year they will be repaired or replaced under warranty and the spare drive invoice will be cancelled. If the eight drives operate without failure for one year, the invoice for the spare drive will become due.Isn’t a Bypass Required? A bypass has only one purpose: to enable the user to temporarily re-route power to the motor should the drive, which controls the amount of power going to the motor, fail. In the past, a bypass made sense because drives were complicated, had high failure rates, and were expensive to repair and replace. It could take days to get a replacement drive and require a specialist to install it. That is not the case today. The Affinity HVAC and Commander HSK drives from Control Techniques are as reliable as motors, and rarely fail. Should one fail, a screwdriver, and features such as pluggable screw terminals and SmartCard parameter copy tool make it easy to swap out a drive and have the system up and running in minutes. Spare the Bypass and Save Eliminating the bypass from the HVAC system, saves space and overall system costs. It also guarantees that reliable Emerson VFDs will be controlling your energy costs at all times. To learn more about the Spare the Bypass program, and to find the Emerson Control Techniques HVAC drive representative nearest you, click here. Click here to download an abbreviated version of this story in PDF. Sales Support Spare Me the Bypass Documents Affinity Specifications
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