![Arkansas [AR] 454 HVAC Class Certification Exam](https://certsedu.com/wp-content/uploads/2026/06/CertsEdu.jpg)
Arkansas [AR] 454 HVAC Class Arkansas’ Class HVAC licensing exam emphasizes practical troubleshooting of split-system heat pumps, refrigerant recovery procedures, and ductwork sizing calculations. You’ll need precision with psychrometric charts, understanding when to apply low-pressure cutout switches, and identifying common issues in residential air handler installations. The exam heavily weights EPA Section 608 compliance and hands-on diagnostic scenarios that mirror real jobsite conditions.
| Exam Name | Arkansas [AR] 454 HVAC Class D |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
