Commercial Control Systems in Los Angeles

Los Angeles buildings demand precise, reliable control. #1 AC Guys brings four generations of engineering discipline to commercial control systems that elevate comfort, indoor air quality, and energy performance. We specialize in complex sites—multi-tenant offices, medical facilities, schools, hospitality, and industrial—where poor coordination between equipment and software drags down efficiency. Our mission is healthy air for a healthy life, delivered through intelligent controls and measurable outcomes.

What we deliver

• Design and engineering of BAS/BMS and DDC architectures
• Integration of VRF/mini-split networks with central plant and air systems
• BACnet/IP, BACnet MS/TP, and Modbus RTU/TCP integrations
• Programming, graphics, trends, and alarms for clear operational visibility
• Commissioning and retro-commissioning for verified performance
• Remote monitoring, maintenance, and ongoing optimization

Technical capabilities that matter

From rooftop units and VAV boxes to boilers, chillers, ERVs/DOAS, and make-up air systems, we build control sequences that adapt to real-world conditions. Expect robust scheduling, demand-control ventilation (CO2-based), supply-air reset, economizer optimization, static pressure reset, hydronic pump VFD control, and fault detection to prevent drift and waste.

• Equipment: RTUs, AHUs, VAV/FPB, VRF/mini-splits, boilers/chillers, cooling towers, ERV/DOAS
• Sensors: temperature, humidity, CO2, VOC, PM2.5, pressure, flow, power
• Functions: trending, analytics dashboards, email/SMS alarms, role-based access
• Protocols: BACnet/IP, BACnet MS/TP, Modbus RTU/TCP for multi-vendor ecosystems

Our engineers have completed factory training with Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). That background strengthens our integration of VRF/mini-split platforms into broader BAS strategies without sacrificing reliability or indoor air quality.

Healthy air first

Comfort is only the start. We design control sequences that support better indoor air quality with demand-control ventilation, filtration monitoring, and IAQ trending. When appropriate, we align with industry best practices and California Title 24 requirements to balance ventilation, efficiency, and compliance.

Our 6-step project approach

• Assessment: site walk, equipment audit, network review, and owner goals
• Strategy: control architecture, points list, and sequence of operations
• Design: panel layouts, network topology, controller and sensor selection
• Implementation: installation, programming, graphics, device mapping
• Commissioning: point-to-point verification and functional performance testing
• Support: documentation, training, monitoring, and optimization

Integration and cybersecurity

We engineer stable, interoperable systems that play well with existing infrastructure. Our designs emphasize network segmentation, secure remote access, credential hygiene, and change control to help safeguard your building data and operations.

Industries we serve

• Office and mixed-use buildings
• Retail and shopping centers
• Healthcare and medical offices
• Education and campuses
• Hospitality and entertainment
• Light industrial and warehouses

Service area

We serve Los Angeles County and nearby regions, including Orange County, Ventura County, and Western Riverside County. Multi-site portfolios and phased upgrades welcome.

Commissioning and retro-commissioning

Every control point we install is verified. We perform functional tests, trend analysis, and tuning to ensure your building behaves as intended. For existing systems, our retro-commissioning process recovers performance, solves nuisance alarms, and identifies low-cost improvements that deliver fast payback.

Operations and maintenance

After turnover, we keep your system sharp with remote monitoring, firmware updates, periodic calibration, and seasonal resets. We provide clear documentation and training so your staff can operate confidently and safely.

Frequently asked questions

• Can you integrate with our existing BAS? — In most cases, yes. We leverage open protocols like BACnet and Modbus to connect equipment and expand capabilities while protecting prior investments.
• Do you support VRF systems? — Yes. Our team has factory training from Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier, enabling dependable VRF/mini-split integrations within larger control strategies.
• Can you phase the project? — Absolutely. We routinely prioritize critical areas first, then expand controls in stages to match budgets and occupancy.
• Will this help with energy goals? — Our sequences and analytics target lower kWh/therm consumption while maintaining comfort and IAQ; we can trend savings and document results.

Talk to an engineer at #1 AC Guys

If you manage a commercial property in Los Angeles and need dependable control systems, we are ready to help. As a fourth-generation family business with 80+ years in engineering, we bring disciplined design, careful integration, and responsive support to every project. Let’s align your building automation with your comfort, health, and energy goals.

Contact us to schedule a site assessment and receive a tailored commercial control roadmap.