Material Take-Off: Parameters (HVAC Only)
- Last UpdatedAug 13, 2025
- 2 minute read
Sets the display parameters available in the size column of the Material Take-Off Table for HVAC components.
The settings for this window are stored in the defaults file DRA-ISO-MTO-PARAMS.
The size of HVAC components are defined by their design parameters, which potentially means up to 100 values. It would not be possible to output this many values in a Material Take-Off Table, IsoADP allows you to choose which ones are to be included in the SIZE column.

The supplied SIZE column in the MTO Table for HVAC has the following appearance:

To make it easier to select the component one by one, they are placed into Groups. From the Group drop-down menu, select the compliant group type.

From the Type drop-down menu, select the component type from the list of available components.

To specify the display of parameter switches, on the Parameter Switch part of the MTO Parameter Switching window, select the required check box.
Click Close to close the MTO Parameter Switching window, if changes have not been made.
Click Save to apply the parameter switching defaults and then Close to close the MTO Parameter Switching window.
Click Cancel to discard any changes and close the MTO Parameter Switching window. A Confirm window displays asking you to OK the cancellation. Click No to discard any changes and close the MTO Parameter Switching window.