Opening the sealed refrigerant system. It is illegal and dangerous without EPA certification.
| Model Prefix | Unit Type | Typical Manual Section | | :--- | :--- | :--- | | | Window Air Conditioner (5,000–12,000 BTU) | Installation, window seals, chassis removal | | WA-P | Portable Air Conditioner (8,000–14,000 BTU) | Hose installation, condensate drainage, caster locks | | WA-D | Ductless Mini-Split (9,000–36,000 BTU) | Refrigerant lines, outdoor unit placement, wireless remote sync | | WA-T | Through-the-Wall Unit | Wall sleeve dimensions, weatherproofing, front grille attachment | windair air conditioner manual