Architectural close-up of a massive galvanized steel duct run in a modern commercial ceiling, clean hanger rods, bright cool daylight casting sharp geometric shadows, 35mm
Architectural close-up of a massive galvanized steel duct run in a modern commercial ceiling, clean hanger rods, bright cool daylight casting sharp geometric shadows, 35mm
Request System Layout
High-Capacity Systems

Engineered for static pressure balancing

National Refrigeration designs and commissions high-volume commercial ducted split systems. We calibrate every zone to eliminate thermal loss, optimize static pressure, and guarantee continuous, high-load performance.

Immaculate commercial ductwork routing with neat insulation wraps, structured hangers, cool-toned studio lighting, architectural focus
Immaculate commercial ductwork routing with neat insulation wraps, structured hangers, cool-toned studio lighting, architectural focus
Close-up of an industrial HVAC air handler chassis, clean access panels, digital pressure gauges showing precise readings, cool daylight
Close-up of an industrial HVAC air handler chassis, clean access panels, digital pressure gauges showing precise readings, cool daylight
Thermal Distribution

Precision airflow delivery systems

Acoustic & Thermal Control

Rigorous ductwork engineering

We design custom duct layouts that completely prevent pressure drops and thermal bleeding. Every transition and elbow is calculated to maintain uniform air velocity across all terminal runs.

Heavy-Duty Execution

Industrial-grade air handlers

Equipped with variable-speed blowers and high-efficiency scroll compressors, our heavy-duty systems maintain absolute climate control under the most extreme peak-load commercial demands.

Technical Specifications

Calibrated to rigorous standards

Our engineering team selects and balances every component to meet the exact static pressure requirements of your facility, ensuring zero energy waste and balanced air distribution.

Static Pressure

Thermal Integrity

Capacity Range

Optimized for high external static pressure up to 2.0 in. WG, ensuring balanced airflow and uniform delivery across extensive commercial duct networks.

Double-wall insulated cabinets prevent casing condensation and thermal leakage, preserving system capacity even when units are installed in unconditioned mechanical spaces.

Available in configurations from 5 to 25 tons, featuring multi-stage scroll compressors for precise load matching and reduced energy consumption.

Consult an Engineer

Ready to engineer your layout?

Connect directly with our commercial estimating and mechanical design team to review your blueprints, thermal load calculations, and system static pressure requirements.