Controls Contractors

Retrofit your existing rooftop HVAC unit with one of several advanced control options.

Advanced Digital Economizer Control (ADEC) Systems for Packaged HVAC Units Retrofit your existing analog or nonfunctional economizer controller for your packaged HVAC unit with an advanced digital economizer control system. ADECs detect and report problems with sensors, dampers and other components so that energy efficiency can be maintained.

Demand Controlled Ventilation (DCV) for Packaged HVAC Units Add demand controlled ventilation to your packaged HVAC unit. DCV enables your economizer to reduce the amount of outside air when the conditioned space is occupied by fewer people than the design capacity. A CO2 sensor provides the occupancy signal to the ADEC system. This is a good energy-efficiency measure for conditioned spaces with highly-variable or low occupancy. If your rooftop unit already has an ADEC, then you have the option of just adding a CO2 sensor.

Enhanced Ventilation Control (EVC) for Packaged HVAC Units Add enhanced ventilation control to your packaged HVAC unit. EVC kits add variable speed, CO2 sensors and ADECs to existing packaged HVAC units. These retrofit add-on technologies can reduce the ventilation rate and outside air when the conditioned space is occupied by fewer people than the design capacity. This is a good energy-efficiency measure for conditioned spaces with highly-variable or low occupancy.

Notched V-Belts Replacing Solid V-Belts If you have existing solid v-belts driving the packaged HVAC fan(s), you can qualify for this rebate by replacing them with notched v-belts.