There are two types of chillers: air-cooled and water-cooled which simply describes how the chillers’ condenser is removing heat from the building.

Chillers are refrigeration systems that produce and circulate chilled water to air-handler units. Inside the air-handler units, fans push air across the evaporator coils to cool and dehumidify air.

They are typically found in larger commercial/industrial facilities with combined loads of 100 tons or more.

• Rebate amounts and qualifying conditions vary depending on chiller type, capacity and efficiency rated at AHRI conditions of the equipment you replace or install.
• Backup or emergency chillers do not qualify.

Direct-expansion (DX) is just a technical term for a standard air conditioner or commercial HVAC system including split systems, mini splits, packaged type units and roof top units.

The inside air-handler unit uses a fan to push air across the evaporator coil, which absorbs heat to cool and dehumidify air. It works with the outdoor condenser unit to release the heat from the freon to the outside so it can return and absorb more heat.

• Air, water and evaporative-cooled A/Cs and heat pumps
• Single vertical package A/Cs and heat pumps
• Variable refrigerant flow A/C sand heat pumps, both air-cooled and water-cooled
• Computer Room cooling systems- air, water, and glycol cooled
• Package terminal A/Cs or heat pump systems
• Units that exceed the Florida Building Code

Visit the U.S. Department of Energy's website for a calculator that computes the lifetime energy cost savings for rooftop units.

Most HVAC systems are designed to supply outside air based on maximum building occupancy, rather than actual occupancy to meet building codes.

DCVs modulates the amount of outside air supplied to a building based on actual occupancy, saving energy and improving humidity control.

While benefits vary depending on climate, areas with hot, humid summers like Florida are ideal for DCV systems.

• Each CO₂ sensor must be installed and connected to qualify
• Your DCV must reduce outside air flow at low occupancy and modulate outside air flow based on real-time sensor readings
• Businesses with long operating hours that have unpredictable or varied occupancy benefit the most from this technology, as well as businesses that rarely reach maximum occupancy

An ERV recovers energy from building exhaust air and reuses it to precondition fresh, outside air required for ventilation.

In a hot and humid climate like ours, the cooler, drier building exhaust air can be used to pre-treat and pre-cool incoming air so your air conditioner doesn't have to work as hard.

In the winter months, exhaust air can be used to pre-heat incoming air, helping you save on your heating costs.

The energy transfer is at a molecular level, humidity stays in a vapor state, meaning no liquid condensation is produced.

A stand-alone ERV system serves a rooftop air-conditioning unit located nearby and exhaust air from spaces that need to be ventilated anyway - including restrooms, offices and break rooms.

The ERV system replaces an existing exhaust fan and enables most or all of exhaust to be used for recovery.

A bolt-on ERV system is built into a rooftop air-conditioning unit and enables more than 50% of the total ventilated exhaust to be used for recovery.

Because the bolt-on ERV system draws exhaust from the return duct only, an exhaust fan is still required for spaces like restrooms, offices, and break rooms.

A KDCV system saves energy by controlling exhaust hood air ­flow and fan speed depending on the level of cooking activity. The sensors adjust exhaust fan speeds based on changes in temperature and the amount of smoke present.

Kitchen exhaust hoods prevent fires by removing the heat and smoke generated by cooking. Yet, most systems consume extra energy by operating at full capacity even when cooking appliances are idle.