HVAC Unit

Also called a Rooftop Unit (RTU) or a Dedicated Outdoor Air System (DOAS)

System Overview

Fast Lead times on VXRTU!  Standard units can ship in as fast as 1-2 weeks.
Please contact us with your specific requirements and location for a price and lead time quote.

Ventilation Direct's Dedicated Outdoor Air System (DOAS) is the ideal HVAC solution, offering exceptional energy savings and precise comfort and humidity control in applications handling up to 100% outdoor air.

Ventilation Direct's DOAS is designed from its core to conserve energy and reduce operating costs. Its rare earth magnet inverter scroll compressor eliminates excessive cycling, premature system aging, inefficient hard starts, and unnecessary energy consumption. Modulating technologies allow it to deliver high efficiencies at part-load conditions.

Ventilation Direct's Rooftop Unit (RTU) contains fully modulating refrigeration and optional hot gas reheat components that deliver the exact amount of air required at the desired temperature and humidity. Variable speed components allow the system to adjust heating and cooling capacity to match the required load. This provides consistent temperatures throughout the space and avoids large swings often associated with single-stage equipment.

Ventilation Direct's DOAS achieves an impressive 21.3 IEER rating (Integrated Energy Efficiency Ratio), exceeding the ASHRAE 90.1-2016 IEER standard by more than 1.5x. Designed with the future in mind, the system is positioned to exceed rising IEER requirements for years to come.

Every Ventilation Direct DOAS is equipped with 24/7 remote system monitoring at no monthly subscription cost. This allows users to make remote adjustments, diagnose potential faults, and access system analytics from any internet-connected device.

Ventilation Direct offers unmatched factory service and technical support through its rapidly expanding nationwide service team. Each local service technician undergoes extensive in-house training to ensure needs are quickly met and issues are thoroughly addressed. Since the Rooftop Unit is a fully standardized equipment line, service technicians are able to stock most replacement parts on their trucks, eliminating long lead times commonly associated with service visits. Additionally, Ventilation Direct's DOAS is designed with serviceability in mind, incorporating multiple convenience features to make support visits smooth and efficient.

DOAS is a fully standardized equipment line, service techs are able to stock most replacement parts on their trucks, eliminating long lead times often associated with service visits. Additionally, Ventilation Direct's HVAC Unit is designed with service in mind, incorporating several convenience features to make support visits as smooth and efficient as possible.

Quick Ship Emergency Units

Emergency Paragon HVAC units ship in 2-3 days. Factory provided curb adaptors are pre-gasketed and come with an integrated electrical chase as well as power and communication whips for quick and easy replacement of any RTU brand.

Contact your local sales engineer today to order!

Standard Features & Benefits

• Danfoss variable speed inverter scroll compressor with VFD
• Mixed air temperature/humidity sensor measures outdoor, return, mixed, discharge and space air
• 2" metal mesh outdoor air filters
• Low leakage outdoor air damper, includes integrated louver and bird screen assembly
• Wide staggered indoor coil design
• Electronic expansion valve modulates 0-100% providing automated superheat control and monitoring and preventing liquid migration
• Stainless steel sloped condensate drain pan, includes float switch and exceeds ASHRAE 62.1 standards
• Natural gas indirect fired furnace with constant 81% efficiency through modulation
• Variable speed direct drive supply fan
• Variable speed outdoor fans with EC motors, 10:1 turndown
• Double wall, G-90 galvanized steel insulated with 2" thick, foil-faced, R13 closed cell foam or 1" thick, R4.3 fiberglass board
• Removable hinged access doors
• User friendly human machine interface (HMI) for easy programming and data measurements
• Integrated controls with multiple PID loops to maximize energy efficiency
• Fully insulated controls cabinet
• Proprietary cloud-based building management system

Options

• Up to 4" additional filtration - MERV-8, 13, 15, and HEPA
• Up to 10-row coil
• Chilled Water and Cooling Only options available
• Fully modulating hot gas reheat coil; allows for precise humidity and capacity control
• 90% high efficiency modular heating
• Propane, Heat Pump, Hot Water, Electric Heat, and Heating Only options available
• VFD or ECM supply fans
• Fully integrated, BAS, or DDC controls