Commercial Direct Digital Controls (DDC) in Pasadena

When your building demands consistent comfort, cleaner air, and lower utility bills, a well‑engineered DDC system is the difference. #1 AC Guys specializes in commercial HVAC controls for Pasadena facilities—designing and commissioning robust Direct Digital Controls that align with your operations, budget, and growth plans.

What We Do for Pasadena Facilities

• DDC/BAS design, submittals, and sequence of operations
• Controls installation, wiring, and panel fabrication
• Programming, graphics, trending, alarms, and user training
• Retro-commissioning and optimization of existing systems
• Integration with BACnet/IP, BACnet MS/TP, and Modbus RTU/TCP
• Service, maintenance, and lifecycle updates

From central plants to zones, we deliver reliable control strategies for AHUs, VAVs, fan coils, VRF/mini‑split systems, boilers, chillers, heat pumps, economizers, and ventilation equipment.

Engineered for Large and Complex Projects

Our 4th‑generation family of engineers brings 80+ years in engineering to commercial projects that demand precision. We thrive on complexity—multi‑building campuses, mission‑critical environments, high‑rise offices, specialty labs, hospitality, retail, and mixed‑use. Expect clean documentation, thoughtful sequences, and commissioning that proves performance.

Healthy Air Is Our Mission

Healthy air drives healthy lives. We design DDC strategies that elevate indoor air quality with demand‑controlled ventilation, filter status monitoring, outdoor air verification, humidity management, and IAQ sensor integration—helping your teams and customers breathe easier.

Energy and Operational Savings

• Optimized schedules, setpoints, and resets to cut waste
• Advanced economizer and free‑cooling logic
• Staging and load‑matching for boilers, chillers, and heat pumps
• Fault detection, alarming, and root‑cause insights
• Trend logs and dashboards for decisions backed by data

Result: steady comfort, fewer hot/cold complaints, and measurable reductions in energy and maintenance costs.

Open Protocols and Integration

Your control system should work with you—not lock you in. We leverage open protocols (BACnet and Modbus) to integrate legacy and new equipment, unify dashboards, and streamline daily operations. Our team is factory‑trained by Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China), so integrations with these manufacturers are especially smooth.

Clear Process, Predictable Results

• Assess: Site survey, equipment audit, goals, and KPIs
• Design: Control drawings, points lists, and sequences of operation
• Install: Panels, wiring, sensors, and field devices
• Program: Logic, graphics, alarms, trends, and user roles
• Commission: Functional testing and fine‑tuning with your team
• Support: Training, documentation, and proactive maintenance

Every milestone is documented and validated so you can see exactly how your DDC investment performs.

Built for Pasadena—Backed by Los Angeles Expertise

We’re a family‑owned HVAC company based in Los Angeles County serving Pasadena and surrounding areas, including Orange County, Ventura County, and Western Riverside County. Our local knowledge helps us address climate, occupancy patterns, and operational needs specific to Southern California commercial buildings.

Systems and Applications We Control

• Air handling units, DOAS, and energy recovery systems
• VAV/VVT systems, fan coils, and terminal units
• Chiller and boiler plants, heat pump loops
• VRF and mini‑split integrations
• Demand‑controlled ventilation and IAQ monitoring
• Economizers, relief, and exhaust strategies

Whether it’s a high‑efficiency retrofit or a ground‑up build, our controls are designed for clarity, serviceability, and expansion.

User Experience That Your Team Will Actually Use

We deliver intuitive graphics and navigation so your staff can quickly see system health, adjust setpoints, acknowledge alarms, and review trends—without digging through confusing menus. Training is hands‑on and role‑based to match how your team works day‑to‑day.

Commissioning That Proves Performance

Before we hand over your system, we functionally test points and sequences, validate sensor accuracy, confirm alarms, and verify safeties. You get as‑built drawings, logic documentation, and training so your operations team is confident from day one.
Need ongoing optimization? We provide seasonal re‑tuning, updates, and data‑driven recommendations to keep your building performing.

Why #1 AC Guys

• 4th‑generation family of engineers with 80+ years in engineering
• Specialists in large and complex commercial projects
• Factory‑trained by Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China)
• Open‑protocol mindset for flexible, future‑ready BAS
• Mission‑driven focus on healthy indoor air
• Transparent scopes, timelines, and communication

Let’s Modernize Your Pasadena Building

Whether you need a new DDC system, a retrofit that protects existing investments, or expert programming and commissioning, #1 AC Guys is ready to help. Tell us your comfort, IAQ, and energy goals—we’ll design a controls roadmap that delivers.

Serving Pasadena, Los Angeles County, Orange County, Ventura County, and Western Riverside County.
Get a consultation and budgetary estimate for your Commercial DDC project today.