HVACopediaGoodman · Furnace · Cooling
Cooling airflow ramping profiles A to D
What happens, in order
- Profile A 100% airflow with a 1 minute OFF delay at 100%.
- Profile B step to 50% airflow for 30 seconds, ramp to 100%, then a 1 minute OFF delay at 100%.
- Profile C ramp to 85% airflow for about 7 1/2 minutes, step to 100%, then a 1 minute OFF delay at 100%.
- Profile D 50% airflow for 1/2 minute, then 85% for about 7 1/2 minutes, then 100%, with a 1/2 minute OFF delay at 50%.
Timings and thresholds
| Item | Value |
|---|---|
| Profile A OFF delay | 1 minute at 100% |
| Profile B 50% step | 30 seconds |
| Profile C 85% run | about 7 1/2 minutes |
| Profile D OFF delay | 1/2 minute at 50% |
Applies to: Multi-speed circulator blower, cooling
More Goodman furnace sequences
- Normal power-up sequence · Startup
- Dual fuel heat pump to gas furnace transition · Heating
- Heating mode sequence of operation · Heating
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Source: Goodman GMVC96 service and troubleshooting manual, p. 28. Written in our own words; timings can differ by model and software version, so check the manual for your exact unit.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.