Thermal design conditions

The Room Type Manager Thermal design conditions panel contains controls used to define Winter and Summer (heating and cooling) design data for rooms of the selected room type.

Note: Thermal design conditions data on subsequently created rooms of the selected room type can be edited individually using the corresponding thermal design data controls found on the Properties For: Room dialog box or globally using the controls found on the Global Changes dialog box’s Thermal design conditions data panel.

Setting	Description
Winter	When heat losses occur in the room, the following Winter design conditions can be defined for rooms of the selected room type: Temperature — Sets the design temperature to be maintained. Saturation — Sets the saturation percentage required to initialize humidity control during heating. Infiltration air change rate — The number of air changes per hour produced by outdoor air flow into the zone from window/door openings and cracks in the exterior surfaces. The value displayed here is the minimum supply air volume rate to be maintained for peak heat loss load conditions. Schedule — Used to select a winter (heating) schedule for the thermal design conditions applied by default to rooms of the selected room type.
Summer	When heat gains occur in the room, the following Summer design conditions can be defined for rooms of the selected room type: Temperature — Sets the design temperature to be maintained. Saturation — Sets the saturation percentage required to initialize humidity control during cooling. Infiltration air change rate — The number of air changes per hour produced by outdoor air flow into the zone from window/door openings and cracks in the exterior surfaces. The value displayed here is the minimum supply air volume rate to be maintained for peak heat gain load conditions. Schedule — Used to select a summer (cooling) schedule for the thermal design conditions applied by default to rooms of the selected room type.

Setting

Description

Winter

When heat losses occur in the room, the following Winter design conditions can be defined for rooms of the selected room type:

Temperature — Sets the design temperature to be maintained.
Saturation — Sets the saturation percentage required to initialize humidity control during heating.
Infiltration air change rate — The number of air changes per hour produced by outdoor air flow into the zone from window/door openings and cracks in the exterior surfaces. The value displayed here is the minimum supply air volume rate to be maintained for peak heat loss load conditions.
Schedule — Used to select a winter (heating) schedule for the thermal design conditions applied by default to rooms of the selected room type.

Summer

When heat gains occur in the room, the following Summer design conditions can be defined for rooms of the selected room type:

Temperature — Sets the design temperature to be maintained.
Saturation — Sets the saturation percentage required to initialize humidity control during cooling.
Infiltration air change rate — The number of air changes per hour produced by outdoor air flow into the zone from window/door openings and cracks in the exterior surfaces. The value displayed here is the minimum supply air volume rate to be maintained for peak heat gain load conditions.
Schedule — Used to select a summer (cooling) schedule for the thermal design conditions applied by default to rooms of the selected room type.