Connecticut Limited Warm Air Air Conditioning and Refrigeration (D-1 D-2) Connecticut’s D-1 D-2 exam pulls heavily on EPA Section 608 refrigerant handling protocols, evacuation procedures using certified recovery equipment, and pressure-relief valve troubleshooting across R-410A systems. You’ll need solid grounding in psychrometrics? specifically wet-bulb and dew-point calculations for humidity control? plus hands-on familiarity with micron gauge readings during pump-down cycles. Electrical ladder diagrams and capacitor failure modes round out the technical spine.
| Exam Name | Connecticut Limited Warm Air Air Conditioning and Refrigeration (D-1 D-2) |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
