Commercial DDC (Direct Digital Controls) in Fontana

What DDC delivers for your Fontana facility

Direct Digital Controls bring your HVAC into one intelligent, open system. With real‑time data and automated sequences, you cut energy waste, prevent hot/cold calls, and protect equipment life—while supporting healthier indoor air. For Fontana’s office towers, logistics hubs, retail centers, and healthcare spaces, DDC helps meet California codes, simplify operations, and make comfort predictable and measurable.

Our mission is simple: healthier air for a healthier life—delivered with engineering‑grade reliability. Whether you need a new build, retrofit, or phased modernization, we design controls that work as hard as your business.

An engineering‑first process that reduces risk

• Discovery and goals: loads, schedules, utility profile, comfort/IAQ targets, and ROI.
• Design and documentation: sequences of operation, points lists, panel layouts, and permit‑ready drawings.
• Programming and panels: clean code, labeled terminals, and serviceable panels built for future expansion.
• Integration: BACnet/IP, BACnet MS/TP, Modbus TCP/RTU, and AC PRO–specified equipment for a unified system.
• Installation and startup: device calibration, trend logs, alarm routing, and operator graphics.
• Commissioning: functional testing, balance coordination, and as‑built documentation.
• Training and support: your team learns dashboards, schedules, overrides, and reporting.

Every step is handled by our fourth‑generation family of HVAC engineers with 80+ years in engineering experience. We excel at large, complex, and fast‑track projects where precision and predictability matter most.

Systems and equipment we control

From simple RTUs to multi‑zone VRF and hydronics, we create a single pane of glass for your building. Typical integrations include:

• Rooftop units, heat pumps, split systems, and make‑up air units
• VRF/VRV systems (factory‑trained by Fujitsu—Japan and Mitsubishi Electric—Thailand)
• Boilers, chillers, cooling towers, and pumps
• VAV/VVT, economizers, and demand‑controlled ventilation
• IAQ devices: CO₂, VOCs, PM2.5, temperature, humidity
• Metering and energy dashboards for actionable insights

We are factory‑trained by Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). When projects call for AC PRO–compatible components or AC PRO distribution support, we integrate them seamlessly into your DDC architecture.

Healthy air by design

Healthy indoor air is our core mission. We use sensors and smart sequences to maintain ventilation, filtration, and humidity within recommended ranges—helping protect occupants and productivity. With trend logs and alarms, your team can verify performance, meet policy requirements, and respond before issues escalate.

Built for Fontana’s pace of business

Fontana’s I‑10/I‑15 corridor moves fast. We design controls that keep up—resilient, serviceable, and scalable. Warehouses, offices, retail, medical clinics, schools, hospitality, and light manufacturing rely on our DDC to reduce energy intensity, stabilize comfort across shifts, and support maintenance teams with clear dashboards and alerting.

Why #1 AC Guys

• 80+ years in engineering across four generations of a family‑owned business
• Factory‑trained by Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier
• Expert at large and complex commercial projects and retrofits
• Open protocols (BACnet/Modbus) and AC PRO–compatible solutions
• Transparent scopes, realistic timelines, and lifecycle‑minded design
• Code‑aware execution and meticulous documentation
• Mission‑driven: healthier air, efficient buildings, reliable comfort

Compliance, clarity, and control

California projects demand documentation and verification. We provide clear sequences, points lists, commissioning reports, and operator guides so your facilities and energy teams can manage the building with confidence. Trend logs and reports support continuous improvement and capital planning.

Service area and response

We serve Fontana and nearby regions across Southern California: Los Angeles County and neighboring areas including Orange County, Ventura County, and Western Riverside County. Our local presence means pragmatic designs, rapid mobilization, and solutions tuned to utility rates and climate.

Get a precise proposal

Ready to modernize with Commercial DDC in Fontana? Request a site assessment. You’ll receive a clear scope, drawings approach, controls architecture, budget options (including AC PRO–compatible paths), and a realistic schedule. With #1 AC Guys, you get engineering‑grade execution and a healthier, more efficient building—delivered right the first time.