Balancing Services & Air Distribution
Specification: ASHRAE 62.1 & Title 24 Standards
Static pressure calibration and certified air balancing ensuring equalized pressure across all facility zones.
Engineering Scope & Overview
Air naturally equalizes pressure. If a building expels more air than it brings in, a negative pressure condition develops—drawing in unconditioned outside air, dust, and moisture through doors and windows. In repurposed or expanded facilities, certified air balancing equalizes zone pressures and reduces system strain.
WMI Field Protocol & Certified Best Practices
- Duct traverse static pressure measurements and velocity profiles
- Diffuser CFM balancing and return air volume equalization
- Building envelope pressurization testing preventing draft infiltration
- Outside air damper calibration ensuring ASHRAE 62.1 ventilation rates
Frequently Asked Questions
- What causes persistent hot and cold spots in commercial office buildings?
- Hot and cold spots are typically caused by uncalibrated VAV terminal boxes, improper duct static pressure, or modified tenant space layouts that disrupted original airflow design CFM.
- How does air balancing improve indoor air quality and building pressurization?
- Proper air balancing ensures positive building pressurization, preventing infiltration of untreated outdoor humidity, dust, and vehicle exhaust while maintaining fresh air intake mandated by ASHRAE 62.1.
- Do you balance both air systems and water/hydronic loops?
- Yes. We provide complete air balancing (diffusers, duct traverses, RTUs) as well as hydronic balancing (circuit setter valves, chilled/hot water coils, and primary/secondary loops).
Emergency Dispatch & RFP Inquiry
Contact Western Mechanical Inc. toll-free at (800) 585-5085 for commercial and industrial service across Southern California.