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Economizer Functional Acceptance Test Certificate (Title 24)

An Economizer Functional Acceptance Test Certificate documents the California Title 24 acceptance test for an air economizer’s outdoor/return air dampers and control sequence, performed by a certified Acceptance Test Technician (ATT). It records damper leakage against the 10 CFM/sf limit, high-limit lockout and changeover verification, and — for fixed dry-bulb/enthalpy controls — that the high-limit setpoint is adjustable.

California Title 24, Part 6 (Building Energy Efficiency Standards) §140.4, NRCA-MCH-05-A, AMCA Standard 500-DValid: One-off (no expiry)

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Sample Economizer Acceptance Test certificate

Sample Economizer Functional Acceptance Test Certificate (Title 24) certificate created with CertBox, showing the professional PDF layout with economizer/high-limit control type, high-limit setpoint adjustability (fixed dry-bulb/enthalpy controls), damper leakage rate vs. the 10 cfm/sf @ 1.0 in w.g. limit (amca 500-d)

Sample Economizer Acceptance Test with fictional data. All personal details shown are fake.

What it covers

  • Economizer/high-limit control type
  • High-limit setpoint adjustability (fixed dry-bulb/enthalpy controls)
  • Damper leakage rate vs. the 10 CFM/sf @ 1.0 in w.g. limit (AMCA 500-D)
  • Damper open/close operation and actuator condition
  • Changeover, high-limit lockout, sensor calibration, and FDD verification

Who needs a Economizer Acceptance Test?

Mechanical contractors (California)
Certified Acceptance Test Technicians (ATT)
Building departments
Energy code compliance officers

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Frequently asked questions about Economizer Acceptance Test

Who can perform a Title 24 economizer acceptance test?
The test must be performed by an Acceptance Test Technician (ATT) certified by a CEC-approved Acceptance Test Technician Certification Provider (e.g. CALCTP), working for an Acceptance Test Employer (ATE), and documented on the CEC compliance form NRCA-MCH-05-A.
What damper leakage rate is required?
Title 24 §140.4 requires outdoor air and return air economizer dampers to have a maximum leakage of 10 CFM per square foot at 1.0 in. w.g., tested per AMCA Standard 500-D (damper leakage Class 1A, 1, or 2).

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