Rooftop units often go unwatched until they fail on the hottest day. A simple plan avoids most of those calls.
Monthly
- Check and change filters
- Check thermostats and schedules, especially after hours
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Quarterly
- Check belts and motors
- Clean condensate drains and pans
- Clean coils as needed
Spring Cooling Start-Up
- Clean condenser coils, and check refrigerant operating readings
- Check contactors, capacitors and economizer operation
Fall Heating Start-Up
- Inspect the heat exchanger and burners
- Test safety controls, and check for carbon monoxide risk
Service Agreement Terms
- Task list for each visit, and a written report
- Priority response and after-hours rate
- Discount on parts and labor, if any
Technicians who open refrigerant systems generally need EPA Section 608 certification. Find HVAC contractors.