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Aaon Rooftop Units

RQ Series RN Series RZ Series

RQ Series

Outdoor AHU, 2-6 Tons
400-3,300 cfm (Indirect-Fired)

For More Information:

Manufacturer's Site
Aaon Rooftop Units - RQ Series RTU

The RQ series rooftop AAON air handling units are engineered for performance, flexibility, and serviceability. Double-wall rigid polyurethane foam insulated cabinet construction and direct drive backward curved plenum fans allow RQ series units to have quiet, energy efficient airflow with high static pressure capabilities. RQ series units also feature lockable hinged doors which provide service access to all sections of the unit.

Applications
  • Air-cooled condenser packaged DX rooftop unit, from 2 – 6 tons.
  • Water-source heat pump or geothermal heat pump configurations.
  • Chilled water or non-compressorized DX air handling units, 400-3,600 cfm.
  • Makeup air capability, up to 100% outside air, to meet ventilation requirements.
  • High-performance hot water, steam, electric, and gas heating.
  • Variable-capacity and two-step R-410A scroll compressors for load matching cooling and improved part-load efficiency.
Construction
  • Two-inch double wall rigid polyurethane foam panel cabinet construction has a thermal resistance of R-13 or greater, which exceeds the R-value of a cabinet with four-inch thick fiberglass construction. Panels include a thermal break, with no metal contact from inside to outside, to prevent heat transfer through the panel and prevent condensation on the outside of the cabinet. The inner wall protects the insulation from moisture damage, prevents microbial growth, and is easy to clean. This type of construction also makes the cabinet more rigid and resistant to damage, provides increased sound dampening, and reduces air leakage and infiltration.
  • Access doors with full-length stainless steel piano hinges and quarter turn lockable handles provide improved reliability over single point hinges, and make the unit easily serviceable.
  • Corrosion-resistant exterior polyurethane paint exceeds a 2,500 hour salt spray test.
  • Double sloped stainless steel drain pans eliminate standing water which can support microbial growth and stainless steel construction prevents corrosion that could lead to water leaks and contaminants in the air stream.
  • Microchannel condenser coils are more efficient, lighter, and use less refrigerant than traditional fin and tube condenser coils.
Fans and Blowers
  • Direct-drive backward-curved plenum supply fans with rubber isolation mounts are more energy-efficient, quieter, and require less maintenance than belt driven fans.
  • VFD-controlled or ECM-driven supply and exhaust fans for precise airflow control, building pressure control, and reduced power consumption.
Controls
  • Labeled electrical components and color-coded wiring match the unit-specific color-coded wiring diagram which is laminated and permanently affixed inside the control compartment.
  • Factory provided or customer provided controller can be selected to meet existing or new building control architecture.
  • Unit controls and compressors are contained within compartment isolated from the air stream for ease of service and quiet operation.
  • Run test report, color-coded wiring diagram, and Installation, Operation and Maintenance manual with startup form is included in control access compartment of every unit.

RN Series

Outdoor AHU, 6-140 Tons
1,000-49,000 cfm (Indirect-Fired)

For More Information:

Manufacturer's Site
Aaon Rooftop Units - RN Series RTU

The RN Series Rooftop AAON air handling units continue to lead the packaged rooftop equipment industry in performance and serviceability. Double-wall rigid polyurethane foam insulated cabinet construction and direct drive backward curved plenum fans allow RN series units to have quiet, energy-efficient airflow with high static pressure capabilities. Above all, the RN Series Units also feature lockable hinged doors which provide service access to all sections of the unit.

Applications
  • Air-cooled condenser or air-source heat pump packaged DX rooftop units, 6-140 tons.
  • Water-cooled condenser, water-source heat pump, or geothermal heat pump configurations.
  • Horizontal configuration is available for RQ Series units (2-6 tons) and RN Series units (11, 13, 16-30 tons), providing a solution for applications that require horizontal ductwork; it does not require special horizontal supply/return curbs.
  • Chilled water or non-compressorized DX air handling units, 1,800-42,000 cfm.
  • Make up air capability, up to 100% outside air, to meet ventilation requirements.
  • High performance hot water, steam, electric, and gas heating.
  • Dual Two-Stage R-410A scroll compressors for improved part load efficiency.
  • Variable capacity R-410A scroll compressors (10-100%) for load matching cooling and improved part load efficiency.
  • Variable speed R-410A scroll compressors for load matching cooling and high part load efficiency.
Construction
  • Two-inch double wall rigid polyurethane foam panel cabinet construction has a thermal resistance of R-13 or greater, which exceeds the R-value of a cabinet with four-inch thick fiberglass construction. Panels include a thermal break, with no metal contact from inside to outside, to prevent heat transfer through the panel and prevent condensation on the outside of the cabinet. The inner wall protects the insulation from moisture damage, prevents microbial growth, and is easy to clean. This type of construction also makes the cabinet more rigid and resistant to damage, provides increased sound dampening, and reduces air leakage and infiltration.
  • Access doors with full length stainless steel piano hinges and quarter turn, zinc cast, lockable handles provide improved reliability over single point hinges and plastic or sheet metal handles, and make the unit easily serviceable.
  • Corrosion resistant exterior polyurethane paint exceeds a 2,500 hour salt spray test – over 5 times the industry standard of 500 hours.
  • Double sloped stainless steel drain pans eliminate standing water which can support microbial growth and stainless steel construction prevents corrosion that could lead to water leaks and contaminants in the air stream.
Fans and Blowers
  • Direct-drive backward-curved plenum supply fans with rubber isolation mounts are more energy-efficient, quieter, and require less maintenance than belt driven fans.
  • VFD-controlled supply, exhaust, and return fans for precise airflow control, building pressure control, and reduced power consumption.
Controls
  • Labeled electrical components and color-coded wiring match the unit specific color-coded wiring diagram which is laminated and permanently affixed inside the control compartment.
  • Factory-provided or customer-provided controller can be selected to meet existing or new building control architecture.
  • Unit controls and compressors are contained within compartment isolated from the air stream for ease of service and quiet operation.
  • Run test report, color-coded wiring diagram, and Installation, Operation and Maintenance manual with startup form is included in control access compartment of every unit.

RZ Series

Outdoor AHU
8,900-75,500 cfm (Indirect or Direct-Fired)

For More Information:

Manufacturer's Site
Aaon Rooftop Units - RZ Series RTU

The RZ Series design incorporates AAON’s long-term commitment and dedication to excel as the premier manufacturer of rooftop equipment. The RZ Series is available in multiple configurations and include many standard features that make AAON synonymous with quality products for any application.

Applications
  • Air-cooled condenser or water-cooled condenser packaged rooftop units from 45-240 tons.
  • Evaporative condenser packaged rooftop units from 51-261 tons.
  • Water-source, geothermal, and air-source heat pump options.
  • Chilled water or non-compressorized DX air handling units, from 7,500-80,000 cfm.
  • Variable speed R-410A scroll compressors on all units for load matching cooling and improved part load efficiency.
  • Selectable number of draw-through or blow-through direct drive welded air-foil plenum supply fans allows design flexibility for quieter applications and redundancy for applications where unit up time is critical.
  • Up to 100% outside air to meet ventilation requirements.
  • Electric, steam, hot water, indirect fired gas, and direct fired gas heating.
  • Power exhaust and power return plenum fan options.
  • Factory installed AAONAIRE® sensible and total energy recovery wheels.
  • Humidity control features including return air bypass and modulating hot gas reheat.
  • Option boxes available for field installed components with optional drain pan for field installed components.
Construction
  • Double wall rigid polyurethane foam insulated cabinet construction has a thermal resistance of R-13 and includes thermal breaks to reduce heat transfer through the cabinet. The two-inch double wall panel construction dampens radiated compressor and fan sound and inhibits microbial growth, supporting indoor air quality.
  • Walk-in compressor and control service vestibule provides shelter for the maintenance and service personnel while startup and periodic maintenance is performed on the unit.
  • Access doors are provided in areas subject to scheduled maintenance. Walk-in doors are constructed with stainless steel piano hinges, perimeter gaskets, and zinc cast lockable handles that operate from a single point.
  • Aluminum tread plate floor covering in appropriate equipment access areas for improved durability and safety.
  • Corrosion resistant polyurethane paint exceeds a 2,500-hour salt spray test.
  • Compressor isolation valves are standard for improved service efficiency.
  • Refrigerant circuits are provided with removable core filter driers and isolation valves for ease of service; no need to cut the refrigerant line as is done with brazed in filter driers.
  • Unit specific color-coded wiring diagrams are laminated and permanently affixed inside the control compartment for ease of service.
  • Factory installed, sensible or enthalpy controlled, AMCA Certified Class 2 low leakage gear driven economizer dampers allow for free cooling.
Fans and Blowers
  • Supply fan array with up to 12 high efficiency direct drive welded air-foil plenum fans. Optional backdraft dampers are available.
  • Optional hybrid permanent magnet motors incorporate a synchronous reluctance rotor with permanent magnets to achieve an International Efficiency rating above IE5, offering significant energy savings at full speed and reduced speeds.
  • VFD controlled supply, exhaust, and return fans for precise airflow control, building pressure control, and reduced power consumption.
  • Direct drive, backward curved plenum power exhaust and return fans are more energy efficient, quieter, and require less maintenance than belt driven fans.
Controls
  • Labeled electrical components and color-coded wiring match the unit specific color-coded wiring diagram which is laminated and permanently affixed inside the control compartment.
  • Unit controls are contained within a walk-in service compartment isolated from the air stream for ease of service and quiet operation. Service compartment can be independently heated.
  • Run test report, color-coded wiring diagram, and Installation, Operation, and Maintenance manual with startup form are included in control access compartment of every unit.
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                      Jim Lubratt

                      President & Chief Executive Officer

                      Jim Lubratt has been president of SVL since 2006. He first joined the company as a sales engineer in 1992 and was made a partner in 2000. He holds a Bachelor of Science in mechanical engineering from Southern Methodist University and first entered the HVAC industry as a marketing engineer for a heat pump manufacturer in Texas.

                      In addition to his role at SVL, Jim is vice president of AQC Industries, LLC, a manufacturer of specialized underground ductwork systems. He is also an investor and board member for Hydromx, Inc., a manufacturer of heat transfer nanofluids, and Crotega, Inc., creators of personal and building security solutions.

                      Jim and his wife, Tracy, met in college and married in 1993. They have three children, two of whom have graduated college in Texas, while their youngest is attending Grand Canyon University in Arizona.

                      Outside of work, Jim places a priority on his faith, family, friends, and fitness. He enjoys helping people-supporting charities, time with his wife and kids, road-biking with friends and efforts to stay physically fit.

                      A message from Jim on the achievements of SVL

                      SVL started in February 1967 by Charlie Schwab and Craig Vollhaber. Schwab-Vollhaber, Inc. (as it was named at the time) steadily grew and, in 1985, welcomed Paul Lubratt as another partner, becoming Schwab-Vollhaber-Lubratt, Inc. SVL’s founders had the determination to build the most talented, customer-focused HVAC representative in the Midwest. Our original drive and passion still shape the company and culture to this day. The achievements of an organization are the results of the combined efforts of every individual. From humble beginnings, SVL founders paved the way to industry success with hard work and determination. “Today, SVL is strongly organized with great people to lead our industry forward as we are challenged with fast-paced changes to reduce our environmental impact,” says Jim. Now, 55+ years later, SVL is under the leadership of two new principals who share the same vision and drive that has propelled SVL throughout the years. Built on a foundation of integrity, Jim Lubratt, and Charlie Vollhaber strive to ensure opportunities for personal growth, improved work environment, and shared life enrichment. The achievements of our organization are the results of the combined efforts of every individual.

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                      Charlie Vollhaber

                      Executive Vice President & Officer

                      Charlie Vollhaber is a third-generation employee at SVL, as a grandson of company co-founder Craig Vollhaber and son of former CEO Todd Vollhaber. Charlie holds a Bachelor of Science in mechanical engineering and an MBA, both from the University of Minnesota. He became an outside salesman for SVL in 2013, was made a partner in 2019, and then executive vice president and officer in 2022.

                      He grew up playing sports, including football, basketball, golf, and track, and enjoys the competitive nature of the HVAC industry. “I like that no two days are ever the same as there are always questions to answer and problems to solve,” he says. “Most of all, I enjoy working with great people and coordinating together on challenging projects to achieve positive results together.”

                      Outside of work, Charlie enjoys spending time with his wife, Lesley, and their three boys. He’s also fond of golfing, traveling, and attending concerts and sporting events. One of his favorite quotes is from the book of Philippians: “Do nothing from selfish ambition or conceit, but in humility count other more significant than yourselves. Let each of you look not only to his own interests, but also to the interests of others.” Because HVAC and construction is such a team effort, he says, “this mindset helps to create positive results in a vast majority of situations.”

                      A message from Charlie on the culture of SVL

                      “At SVL, we strive to cultivate a unique culture that revolves around finding and empowering exceptional individuals. We believe in equipping our team members with the right tools and resources to succeed.

                      As we’ve grown the business, we have deliberately maintained a small firm culture, fostering an environment where collaboration thrives. We encourage open dialogue and promote a sense of comfort among our employees, allowing anyone to ask questions and seek guidance from anyone else, regardless of their level within the organization.

                      We foster a workshop-like atmosphere where everyone’s contribution is valued. Presenting your work to another individual or a group of teammates provides a platform for collaboration, where ideas are shared, dissected, and improved collectively. We firmly believe in the power of mentoring and provide various avenues for both formal and informal guidance. Whether it’s through structured training programs or casual conversations, we encourage team members to discuss a wide range of topics, from work-related successes or issues to everyday personal life topics.

                      In summary, our culture is built on the foundation of attracting exceptional individuals, empowering them with the necessary tools, and fostering a collaborative environment where mentorship and growth thrive. We are committed to creating an atmosphere where every team member feels supported, valued, and encouraged to reach their fullest potential.”

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                      Al Gramse

                      Vice President of SVL Service Corporation

                      Al Gramse has been in the HVAC industry for over 30 years. He began as a service technician.  Then over his career worked in technical support, building automation, then service manager prior to his current role.

                      How did Al end up in the HVAC industry?  “After high school, I took a couple years to figure out what I wanted to do.   Where I was working at the time, a grumpy old coworker, who I didn’t get along with, walked up to me and said ‘What are you doing here?  Go back to school.’”  I said, “For what?”  He said “There’s a tech school down the street.  Go down there and pick something that interests you”. Then he walked away.  That weird interaction, with someone I didn’t get along with, sent me down a 30-year path in the HVAC industry.   Never underestimate the potential of a little encouragement.   Even if it is from a strange source.

                      Al has been with SVL for 15 years and is the head of our SVL Service division. “The people here are some of the best in the industry,” Al says. “A bunch of team-oriented, knowledgeable, go-getters.” His personal mantra is “figure it out,” “Do a little fact-finding on your own. Use your own brain before you use someone else’s. But know when to ask for help.” he prescribes. “It’s amazing what you can accomplish on your own if you dig in a little bit.”

                      Outside of work, Al has lots of outdoor hobbies, including hunting, fishing, and motorcycling, though his favorite pastime is simply hanging out with family.

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                      Jennifer Roach

                      Director of Marketing, Events & Administration

                      More than just a creative director, Jen brings 30 years of marketing and leadership magic to SVL. Her journey began in the trenches of graphic design, quickly evolving into crafting eye-catching campaigns for iconic brands like Target, Gabberts, Gander Mountain and Camping World. As a seasoned director and agency veteran, she honed her skills with recreational vehicle giant Parts Unlimited before leading creative teams at HOM Furniture and, ultimately, landing at SVL during a crucial growth phase.

                      Jen thrives on "servant-leadership," empowering her team and fostering a culture of trust and mutual respect. "It unlocks their potential, fuels creativity, and leads to work we're all proud of," she says. "I want my team to care, collaborate, and push boundaries together."

                      When not shaping impactful campaigns, Jen enjoys weekend adventures with her husband, Scott, and son, Crew. Their lives are a tapestry of shared passions, from bike rides and baking experiments to cheering on Simley High School wrestlers. And with her recently built forever home in Cottage Grove, her free time now includes a new, thrilling chapter: weekend renovation warrior!

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