Economizer Damper Assembly – Procedure

This checklist ensures thorough inspection of economizer dampers, actuators, sensors, and controls. Verifies airflow, alignment, control logic, and performance during part-load and changeover conditions to support ASHRAE compliance and HVAC energy efficiency.

Load Testing Procedure

Notify occupants before initiating generator test
Check and record fuel, coolant, and oil levels
Simulate outage or use manual test mode
Transfer load to generator (ATS or manual)
Maintain load test for at least 30 minutes
Record voltage, frequency, oil pressure, and temp
Watch for vibration, noise, or smoke
Return power to utility, verify retransfer
Allow cool-down and document test results

Battery Maintenance Procedure

Wear PPE and isolate battery circuit
Clean all terminals with approved cleaner
Check specific gravity (if applicable)
Measure and log voltage of each cell
Ensure proper electrolyte level
Reconnect terminals securely and test charger
Apply corrosion inhibitor after final check

Fuel System Procedure

Check main and day tanks for sediment/water
Inspect fuel filters and lines for damage
Take fuel sample for visual clarity and odor
Ensure fuel level sensors are functioning
Verify venting system and containment area

Transfer Switch Inspection

Open ATS panel and inspect terminals
Test time delay and phase rotation settings
Inspect cabinet for overheating or corrosion
Perform manual transfer test (if allowed)
Confirm indicator lamps and control relays

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