Commercial DDC (Direct Digital Controls) in Fullerton

Why Commercial DDC Matters in Fullerton

Direct Digital Controls connect your HVAC equipment, sensors, and actuators into one intelligent Building Automation System. In Fullerton’s varied climate, DDC delivers stable comfort, healthier indoor air, and measurable energy savings while supporting California Title 24. With smart sequences, trending, and alarms, your team gains control, visibility, and the ability to fix issues before they disrupt occupants.

Our DDC Capabilities

• Design/build and retrofit of open‑protocol BAS for commercial facilities
• Integration of VRF, VAV, RTUs, heat pumps, boilers, chillers, DOAS, and IAQ sensors
• Programming, graphics, dashboards, trending, and alarm strategies
• Custom sequences of operation aligned with Title 24 and project goals
• Commissioning, functional performance testing, and tuning
• Energy optimization, demand control ventilation, and setback scheduling
• Remote monitoring, diagnostics, and secure connectivity
• Legacy system modernization and point‑to‑point verification
• Ongoing service plans, training, and documentation

Healthy Air by Design

Our mission is simple: healthy air at home and at work for healthy lives. We apply engineering‑first DDC strategies that prioritize ventilation quality and occupant wellness—CO2‑based demand control ventilation, outdoor air economizer logic, humidity management, and integration of PM2.5 and VOC monitoring where needed. The result is a building that breathes better while using less energy.

Our engineers have trained at manufacturer plants of Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China), bringing deep insight to controls around these platforms and the connected equipment they serve.

Open Protocols and Smart Integration

We design around non‑proprietary, open standards to protect your investment. Our team integrates BACnet/IP, BACnet MS/TP, and Modbus TCP/RTU, builds reliable network topologies, and maps points for clear trending and analytics. When legacy gear must stay in place, we deploy gateways and careful sequencing to elevate performance without disrupting operations.

Our Process

• Site assessment and data review: we document existing equipment, controls, and comfort challenges.
• Basis of Design and Sequence of Operations: engineered narratives that define how the system should perform.
• Submittals and coordination: control drawings, point lists, graphics standards, and scheduling.
• Installation and programming: clean panel work, verified wiring, structured naming, and readable graphics.
• Commissioning and training: functional testing, alarm thresholds, trend setups, and staff handoff.
• Documentation and closeout: as‑builts, point maps, and maintenance guides.
• Ongoing service and remote support: proactive tuning to keep performance on track.

Industries We Serve

• Office and mixed‑use buildings
• Retail and shopping centers
• Education and campuses
• Healthcare, clinics, and labs
• Hospitality and entertainment
• Manufacturing and warehouses
• Places of worship and community spaces
• Multifamily common areas

Compliance, Savings, and Risk Reduction

Our DDC programming supports Title 24 compliance with sequences that target ventilation effectiveness, economizer operation, scheduling, and fault detection where applicable. Clear trends and reports make it easier to validate performance, benchmark energy use, and pursue utility incentives or demand response programs. Fewer hot/cold calls, lower energy spend, and better air quality reduce operational risk and occupant complaints.

Built for Complex Projects

As a fourth‑generation family of engineers with 80+ years in engineering, #1 AC Guys thrives on complexity—multi‑building sites, phased retrofits, and mission‑critical spaces. We calibrate sensors, verify each control point, and tune sequences for stable, predictable outcomes. Our approach blends practical field know‑how with disciplined engineering so your facility gets a resilient, serviceable BAS.

Service Areas

We focus on Fullerton and the greater Orange County market, and we also serve Los Angeles County, Ventura County, and Western Riverside County. If your portfolio spans multiple counties, we can standardize graphics, naming, and sequences across sites for consistency and easier remote management.

Get a Proposal

Ready to modernize your building controls? Request an engineered DDC plan for your Fullerton facility. We will review your goals, evaluate existing systems, develop a clear sequence of operations, and provide transparent pricing and schedule. From integration to commissioning and ongoing support, #1 AC Guys delivers commercial DDC that improves comfort, air quality, and the bottom line.

Let our engineers turn complex controls into dependable performance—one precise sequence at a time.