Navy Standard Products

Indoor air quality continues to be a priority and has led to the adoption of ANSI/ASHRAE Standard 62-89 which increased outside air quantity requirements as much as 400%. Increasing outside airflow puts larger loads on HVAC systems giving building owners higher operating costs. DRS Marlo Coil's air handling units with heat wheels provide total energy recovery on the outside air before any mechanical heating or cooling is performed and provide up to 88% total (sensible + latent) energy recovery.

In the summer, the wheel pre-cools and dehumidifies and in the winter, it pre-heats and humidifies with no cross contamination of the outside and exhaust airstreams. While other types of energy recovery offer efficiencies on the sensible energy only, the heatwheel is the only device available that can offer Total Energy Recovery

Standards

• Total or sensible only energy recovery
• Segmented heatwheel media construction
• Minimal cross contamination between airstreams allows use in medical, laboratory areas or heavy tobacco smoke environments (casino or restaurant).
• Performance testing in accordance with ASHRAE standard 84-78
• Field adjustable purge section
• Specially designed media flutes provide Laminar Airflow profile
• Labyrinth non-contacting air seals for process and exhaust air
• ARI certified hot water & steam coils, electric or gas air heating
• ARI certified chilled water or DX air cooling coils
• Double wall cabinet construction
• SST Eccentrically pivoted door hinges
• Dual high compression door latches
• Industrial grade alkyd enamel paint
• AMCA certified fans for air and sound performance
• Ultra low leakage control dampers

Options

• Dual wheel configurations for IAQ applications
• Variable speed drive to vary energy recovery
• DDC temperature controller
• Stainless steel casing
• 30% to 99% efficient filtration systems side or upstream accessible
• Galvanized steel, stainless steel or aluminum cabinet construction
• Perforated inner liners with1 to 4 inch acoustical insulation
• Indoor or outdoor cabinet construction
• Flush mounted exterior control panels
• Vapor-proof incandescent or fluorescent lights
• Access door viewing ports
• Air heating with steam, hot water, electric, indirect or direct fired gas
• Direct or indirect evaporative cooler