For supply air temperature control with mixed air dampers, use 30°F or 0°C. The mixed air dampers should prevent any lower temperatures from entering the supply duct even if the heating coil is not operating or hot water is absent.
For supply air temperature control with mixed air dampers, use 30°F or 0°C. The mixed air dampers should prevent any lower temperatures from entering the supply duct even if the heating coil is not operating or hot water is absent.