Commercial Modbus Integration in Long Beach for AC PRO Systems

When your Long Beach facility needs dependable, standards-based HVAC control, #1 AC Guys delivers commercial Modbus integration that makes AC PRO supplied systems work seamlessly within your BAS/BMS. We connect rooftop units, heat pumps, VRF and mini-splits, make field changes safe and traceable, and document everything so your team can operate with confidence.

What we integrate

• Modbus RTU over RS-485 and Modbus TCP over Ethernet for AC PRO supplied HVAC equipment and controls
• Rooftop units (RTUs), split systems, heat pumps, and packaged units
• VRF/mini-splits and gateways for Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier equipment
• Indoor air quality sensors (CO2, PM, VOC) to support ventilation strategies and healthy air
• Smart thermostats, VFDs, DOAS units, energy meters, and make-up air units

Our team is factory-trained with Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier. Combined with 80+ years of family engineering experience across four generations, we excel at large, multi-building and mission-critical projects that demand precision and uptime.

How we deliver

• Discovery and design: point lists, network diagrams, addressing plans, and gateway selection
• Clean wiring and labeling: shielded RS-485 bus layouts, termination, biasing, and isolation
• Register mapping: verified coils/registers, scaling, units, read/write permissions, and fallbacks
• Programming and logic: demand-control ventilation, economizer control, start/stop, setpoint resets
• Commissioning: end-to-end testing, trend validation, alarm proofs, and as-built documentation
• Handover and training: operator guides, change logs, and on-site or remote walkthroughs

We prioritize maintainability. That means clearly labeled panels, documented register maps, and simple service procedures so future expansions and troubleshooting stay predictable and cost-effective.

Results you can expect

• Centralized visibility: live status, trends, and alarms in your BAS/BMS
• Energy savings: optimized schedules, DCV, and supply-air resets to meet Title 24 strategies
• Healthier air: verified flows and IAQ-triggered ventilation aligned with your wellness goals
• Reliability: robust bus design, proper termination, and watchdog/fallback strategies
• Faster service: transparent as-builts and readable logic reduce downtime

We build for the real world: busy roofs, electrical noise, mixed vintages of equipment, and tight outages. Our engineers stage work to minimize disruptions and can perform after-hours cutovers when needed.

Local expertise for Long Beach

We serve Downtown Long Beach, Bixby Knolls, Port of Long Beach, East Village, Belmont Shore, Naples, Signal Hill, Lakewood, Carson, and Seal Beach. As an LA County company serving Orange County, Ventura County, and Western Riverside County, we dispatch quickly and coordinate multi-site rollouts across the region.

Compliance-minded integration

Our control strategies and documentation support California Title 24 and ASHRAE 90.1 objectives, helping your team verify sequences, trend data, and acceptance criteria. We align with your commissioning agent’s requirements and provide the records needed for audits and future upgrades.

Security and reliability

• Network segmentation recommendations for Modbus TCP and supervisory access
• Device timeouts, failover setpoints, and safe defaults for power or network loss
• Change management: versioned logic and register maps for traceability

Whether your integration involves new AC PRO supplied equipment or retrofitting existing units with Modbus gateways, we harden the system against common failure points and design for serviceability.

Why #1 AC Guys

• Fourth-generation family business with 80+ years in engineering
• Factory training with Fujitsu, Mitsubishi Electric, Midea, Gree, and Haier
• Commercial specialists for large and complex integrations
• Clear scopes, detailed as-builts, and responsive support
• Mission-driven focus on healthier indoor air

We do more than make points appear in the front end. We engineer complete control pathways that improve comfort, energy performance, and occupant well-being.

Typical deliverables

• Point list with addresses, data types, scaling, units, and permissions
• Network and panel drawings with labeling conventions
• Gateway configurations and backups
• Sequence-of-operations review and tuning recommendations
• Commissioning report, trend snapshots, and alarm proofs

Every site is different. Coastal air, roof accessibility, legacy controls, and tenant schedules all shape the plan. We adapt the design to your facility while preserving standardization for growth.

Get started

Need commercial Modbus integration for AC PRO supplied HVAC in Long Beach? Contact #1 AC Guys for a no-pressure assessment, clear pricing, and a practical timeline. We can phase work around your operations and provide after-hours cutovers to keep your team focused on business.

Healthy air, reliable controls, and measurable savings begin with solid engineering. Let our fourth-generation team bring your HVAC under one reliable Modbus roof.