I am not sure which unit you have but I would be glad to help. In the meantime I took the liberty of linking you to the two different kinds as well as a set up guide.
If you can provide some details on the unit and what it is doing I would be able to help you more. On the back of the unit does it have a ethernet port? Is it a pair of units in which one needs to be placed in a window for example? Thank you for your time, I am sure this will be a easy fix.
If you want to work with the T-force team directly you can reach them on social media like Facebook/Twitter or by calling in. The reps should also be able to help.
dragon's got some super helpful links above. Please let us know if they help! Thanks.