Frequently Asked Questions

Our Technical Assistance Center receives thousands of calls and emails every year, ranging from the simple to the complex. We've compiled a listing of some of the most common questions, but you can contact the TAC Group by using our online form.

Please select from the following FAQ categories:

C-90B Air Cleaner
Ductless Split Systems
Portable Air Conditioners
PTACs
Room & Thru-the-wall AC
Vert-I-Pak
Glossary
Parts