Commercial Unit Accessories

Commercial unit accessories help adapt your HVAC equipment to your building’s heating, ventilation, and installation needs. From adding electric heat to bringing in outdoor air or supporting a rooftop installation, the right accessories help complete your system.

Choose Electric Heat Kits for compatible electric heating options, or browse Commercial Packaged Unit Accessories for economizers, dampers, roof curbs, hail guards, and LP conversion kits.

Electric Heat Kits

Electric heat kits use electric resistance heating elements to warm the air passing through compatible equipment. They can add heating to an air conditioner packaged unit or provide supplemental heating for a heat pump.

Kits are available in different heating capacities, measured in kilowatts (kW). Select a kit approved for your equipment model, voltage, and phase, and have your installing contractor confirm the appropriate heating capacity and electrical requirements.

Economizers & Outdoor-Air Dampers

Economizers and dampers manage the outdoor air entering a commercial packaged unit. An economizer can use favorable outdoor conditions to help cool the building, reducing the need for compressor operation.

Manual dampers provide a manually adjusted outdoor-air opening, while motorized dampers open and close through a powered mechanism. The appropriate option depends on the building’s ventilation requirements and equipment controls.

Browse Commercial Packaged Unit Accessories for available economizers and dampers. Match the accessory to the unit’s model, capacity, and downflow or horizontal configuration.

Roof Curbs & Installation Accessories

Roof curbs provide a mounting base for rooftop packaged units and an interface with the building’s supply and return ductwork. For replacement installations, a compatible curb adapter may allow new equipment to connect to an existing roof curb.

Your installing contractor should verify the equipment dimensions, duct openings, and existing curb before selecting installation accessories. Available roof curbs are listed under Commercial Packaged Unit Accessories.

Hail Guards & LP Conversion Kits

Hail guards help protect outdoor coils from hail damage. LP conversion kits allow approved gas/electric packaged units to operate on propane instead of natural gas.

Both are equipment-specific accessories. Browse Commercial Packaged Unit Accessories and check the listed compatibility for your exact model.

Choosing Compatible Accessories

Accessories are not universal. Compatibility can depend on the equipment series, tonnage, voltage, phase, and airflow configuration. Review the accessory’s product information and have your installing contractor confirm the selection.

For help finding accessories for your commercial equipment, contact our team.