Commercial Sensor Calibration in Glendale, CA

When a building’s sensors drift, energy costs rise, comfort slips, and compliance risks grow. #1 AC Guys delivers commercial sensor calibration in Glendale that restores trustworthy data for your BAS/BMS and HVAC equipment—so your setpoints, alarms, and economizers work as designed.

What We Calibrate

• Temperature sensors: RTDs, thermistors on RTUs, VAVs, duct and space locations
• Humidity sensors and dew point probes for supply/return air and zones
• CO2 and VOC sensors for demand-controlled ventilation and IAQ
• Static and differential pressure sensors for ducts, filters, and clean spaces
• Airflow and velocity pressure pickups at VAVs and air handlers
• Refrigerant and coil sensors, economizer outdoor air sensors
• Occupancy sensors affecting HVAC scheduling and setpoint resets

Our Calibration Process

We follow a methodical, NIST-traceable approach designed for busy facilities and tight maintenance windows.

• Assessment: Review sequences of operation, current trends, and pain points.
• Reference setup: Apply NIST-traceable references and verify environmental stability.
• Test & adjust: Measure across key points, correct offsets, or replace failed devices.
• Controls update: Align BAS/BMS inputs, ranges, scaling, and alarm thresholds.
• Functional check: Confirm economizer logic, DCV, VAV flow, and reset strategies.
• Documentation: Provide calibrated values, as-left data, and recommendations.

Result: sensors that reflect reality, enabling smarter control, healthier indoor air, and lower kWh/therms.

Systems We Support

• Rooftop units, split systems, packaged and built-up air handlers
• Mini-split and VRF/VRV systems
• Economizers, energy recovery, and ventilation systems
• VAV boxes, fan coils, and heat pumps
• BAS/BMS integrations and trend/log review

Our engineers are factory-trained at Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China), bringing practical insight to complex sensor and control challenges.

Industries We Serve

• Office buildings and corporate campuses
• Retail, restaurants, and mixed-use spaces
• Healthcare clinics and labs
• Education and public facilities
• Warehouses, light industrial, and manufacturing
• Hospitality and entertainment venues

Documentation & Compliance

We calibrate with an eye toward compliance and audits. Reports include equipment IDs, methods, as-found/as-left values, and recommended intervals. Our work supports California Title 24 sequences, ASHRAE 55 thermal comfort, and ASHRAE 62.1 ventilation goals, helping you demonstrate due diligence for energy and IAQ programs.

Benefits You Can Measure

• Healthier indoor air: CO2/VOC accuracy protects ventilation decisions.
• Energy savings: Proper economizer and reset logic reduce waste.
• Comfort and productivity: Stable temperatures and humidity improve occupant experience.
• Fewer nuisance alarms: Better data means smarter fault detection and less downtime.
• Actionable insights: Trend review reveals hidden issues before they escalate.

Service Area

Based in Los Angeles County, we focus on Glendale and nearby communities, with coverage across Los Angeles County and adjacent service areas in Orange County, Ventura County, and Western Riverside County. Whether it’s a single site in Glendale or a multi-facility portfolio, we scale to your scope.

Why #1 AC Guys

• 4th-generation family of engineers with 80+ years in engineering
• Factory-trained at Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China)
• Expertise in large, complex commercial projects and tight timelines
• NIST-traceable methods, clear reporting, and practical recommendations
• Mission-driven: healthy air for healthier lives in every building we service

From misreading CO2 sensors that starve spaces of fresh air to drifting thermistors that inflate utility bills, inaccurate inputs silently erode performance. Our Glendale team finds and fixes those errors, then aligns your BAS/BMS so every control decision is backed by dependable data.

Get a Quote

Ready to bring your sensors back to spec? Contact #1 AC Guys for commercial sensor calibration in Glendale. We’ll review your equipment list, sequences, and schedules, then deliver a cost-effective plan that minimizes disruption and maximizes ROI.