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LoopCAD 2021

The North Arrow can be used to specify your building orientation, which is critical for cooling load calculations. You can automatically find the orientation with the maximum cooling load if needed.

Activation Help Topics

Secondary Activation for Personal Use

Applies to: LoopCAD 2021, HeatCAD 2021, PlumbingCAD 2020

The software is licensed on a per-user basis, and a single license cannot be used by multiple users. However secondary activations are available at no charge as long as it is for use by the same person as the primary activation. This is to allow for the licensed user to use the program on their work computer and on a laptop or home computer

If the second activation is for a different user, then a new license must be purchased for that user.

Once you have the software installed, follow these steps to purchase and activate your license. If you need the setup file to install the software, go to the corresponding downloads page:

  1. Run the program on the computer that you want activated.
  2. If the Activation window does not automatically open, click the Activate link.
  3. Click the "Update my current Activation" link.
  4. You will be prompted to login to your account to complete the remaining steps. (If you forget your password use the "Forgot Password" link to have it sent to your email.)
  5. After you have completed the process your new Activation Code will be automatically applied, and a copy will sent to you by email. (If you later need to manually enter the Activation Code, see the Entering an Activation Code help topic.)
Activation Help Topics