Commercial Industrial Exhaust Systems in Fontana — Lennox Integration

As a family business of fourth‑generation engineers, #1 AC Guys brings an engineering‑first approach to commercial and industrial exhaust in the Fontana area. We design and deploy systems that move contaminant‑laden air out, deliver properly tempered make‑up air in, and work in concert with your Lennox rooftop or DOAS equipment for comfort and efficiency. Our goal is simple: healthy, reliable airflow that protects people, product, and property.

What we deliver

• Design‑build exhaust and make‑up air systems for new construction and retrofits
• Lennox RTU/DOAS integration with hoods, fans, and demand‑controlled ventilation
• Commercial kitchen exhaust and grease management aligned with NFPA 96
• Industrial process, general, and spot/source capture exhaust
• Negative/positive pressure room strategies and air balancing
• Controls, sensors, and VFDs for energy‑smart airflow
• Commissioning, testing, and documentation for AHJ compliance
• Preventive maintenance, repairs, and 24/7 emergency response

Lennox integration without limits

Our team is experienced integrating Lennox rooftop and DOAS equipment with exhaust and ventilation subsystems to maintain target temperatures, humidity, and pressure while meeting ventilation rates. We coordinate economizer logic, fan tracking, and make‑up air tempering so your exhaust strategy does not fight your comfort systems. The result: steady operations, fewer nuisance alarms, and lower operating costs.

We do not rely on one‑size‑fits‑all settings. Instead, we tune control sequences for occupancy, process load, and outdoor conditions — including VFD turndown, discharge air targets, and interlocks that keep your exhaust and Lennox equipment in sync.

Engineering pedigree you can trust

With 80+ years in engineering across four generations, our team is trained by Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier — bringing manufacturer‑level rigor to layout, installation quality, and commissioning. That expertise shows in quiet, efficient duct runs; right‑sized fans; practical service access; and documented results after air balance.

Industries and applications

• Restaurants, ghost kitchens, and food processing
• Warehouses, distribution centers, and light manufacturing
• Auto and metal shops, welding bays, and fabrication
• Laboratories, R&D rooms, and specialty spaces
• Retail back‑of‑house, mixed‑use, and tenant improvements

Code, safety, and quality

We align designs with the California Mechanical Code, IMC, and NFPA 96 for kitchen exhaust. We specify UL‑listed hoods and fans, grease‑rated duct where required, fire‑rated enclosures when applicable, and proper clearances. Our crews install to spec, seal ductwork for low leakage, and verify capture and containment at the hood with measured readings and smoke visualization when needed.

On projects with rigorous standards, we coordinate with your GC, architect, or facilities team to streamline submittals and inspections, helping you pass the AHJ on the first visit.

Smart controls and energy performance

• VFDs and demand‑controlled ventilation based on hood plumes, pressure, or CO/CO2
• Fan tracking for balanced exhaust and make‑up air
• Economizer and Lennox unit coordination to stabilize indoor conditions
• Duty cycling and setback for off‑hours savings
• Alarms and trend logs for proactive maintenance

Our process

• Assessment: site walk, load/airflow calculations, and review of process and schedules
• Design: selections, drawings, and controls strategy tailored to your facility
• Install: clean, safe, and coordinated execution with minimal downtime
• Commissioning: verification, air balance, and closeout documentation
• Lifecycle care: PM plans, cleaning, and 24/7 repair support

When to call #1 AC Guys

• Smoke, heat, or odors linger despite exhaust running
• Grease or particulate buildup is accelerating
• Employees report drafts, hot spots, or headaches
• Doors are hard to open (pressure issues) or hoods “spill”
• Energy bills spike after process or menu changes

Why #1 AC Guys

• Fourth‑generation family business with 80+ years of engineering know‑how
• Specialists in large, complex commercial and industrial projects
• Lennox integration expertise without vendor lock‑in
• Transparent pricing, clean workmanship, and documented results
• Fast, local response and 24/7 emergency service

Service area

We proudly serve Fontana and nearby communities, as well as Greater Los Angeles, Orange County, Ventura County, and Western Riverside County.

Ready to upgrade or troubleshoot your commercial or industrial exhaust system in Fontana? Contact #1 AC Guys for a collaborative, engineering‑driven solution that delivers safe, healthy air and dependable performance — fully integrated with your Lennox equipment.