Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Heating and cooling design supply air temperatures are not room setpoint temperatures (e.g. for thermal comfort). They are min/max user-set design temperatures required for airflow rate sizing for cooling and/or heating needs (e.g. fan-powered terminal units, or central HVAC). Cooling supply temperatures (e.g. 55F or 13°C) need to be below desired room summer setpoints (e.g. 77F or 25°C) in order to be effective. Heating supply temperatures need to be above desired room winter setpoints (68F or 20°C) to be effective. So heating supply temperatures can't be below cooling supply temperatures.
| | 2 | No.2 Revision |
Heating and cooling design supply air temperatures are not room setpoint temperatures (e.g. for thermal comfort). They are min/max user-set design temperatures required for airflow rate sizing for cooling and/or heating needs (e.g. fan-powered terminal units, or central HVAC). Cooling supply temperatures (e.g. 55F or 13°C) need to be below desired room summer setpoints (e.g. 77F or 25°C) in order to be effective. Heating supply temperatures need to be above desired room winter setpoints (68F or 20°C) to be effective. So heating supply temperatures can't be below cooling supply temperatures.
Zone heating/cooling setpoints are set through schedules.
| | 3 | No.3 Revision |
Heating and cooling design supply air temperatures are not room setpoint temperatures (e.g. for thermal comfort). They are min/max user-set design temperatures required for airflow rate sizing for cooling and/or heating needs (e.g. fan-powered terminal units, or central HVAC). Cooling supply temperatures (e.g. 55F 55F, or 13°C) need to be below desired room summer setpoints (e.g. 77F 77F, or 25°C) in order to be effective. Heating supply temperatures need (e.g. 88F, or 31°C)need to be above desired room winter setpoints (68F (68F, or 20°C) to be effective. So heating supply temperatures can't be below cooling supply temperatures.
Zone heating/cooling setpoints are set through schedules.
| | 4 | No.4 Revision |
Heating and cooling design supply air temperatures are not room setpoint temperatures (e.g. for thermal comfort). They are min/max user-set design temperatures required for airflow rate sizing for cooling and/or heating needs (e.g. fan-powered terminal units, or central HVAC). Cooling supply temperatures (e.g. 55F, or 13°C) need to be below desired room summer setpoints (e.g. 77F, or 25°C) in order to be effective. Heating supply temperatures (e.g. 88F, or 31°C)need 31°C) need to be above desired room winter setpoints (68F, or 20°C) to be effective. So heating supply temperatures can't be below cooling supply temperatures.
Zone heating/cooling setpoints are set through schedules.
