Packaged unit installation involves mounting a single heating and cooling system on a rooftop or concrete pad outside a building, with all components contained in one chassis. These all-in-one systems combine the compressor, condenser, evaporator, and furnace components. Packaged units serve as alternatives to split systems where space limitations or installation constraints exist.
Technical Specifications
Packaged units range from 1.5 to 5 tons cooling capacity with matching BTU heating output. Installation requires concrete pads minimum 6 inches thick and level within 1/8 inch variance. Units require flexible ductwork connections at the roof or wall penetration. Electrical service typically requires 208-240V, 30-60 amp circuits depending on capacity. SEER2 ratings range from 13-17 for modern high-efficiency models.
Installation Requirements
Professional installation includes equipment placement, duct connections, electrical integration, refrigerant charging, and startup verification. Vibration isolation pads reduce noise transmission to occupied spaces. Proper roof flashing prevents water infiltration at penetration points. Annual maintenance access must remain unobstructed.
Applications
Packaged units suit commercial buildings, retail locations, and residential properties without basements. They simplify installation by consolidating all mechanical components in one location, reducing line set lengths and reducing labor costs.