- Supply fans and return or relief fans
- Interlocked exhaust fans
- Temperature control strategy
- Economizer and minimum OA section options
- Preheat, cooling, reheat, or dual temperature coils
- Humidifier, dehumidifier, or both
See the following sections for information on this application’s logic and selections.See the Upgrading System Files section for a list and description of the module and System Selection changes that were made since the last release of the tool.