Cov chav txias muaj xws li insulated panels (PUR / PIR sandwich vaj huam sib luag), chav txias qhov rooj (hinged qhov rooj / zawv zawg qhov rooj / viav vias qhov rooj), condensing unit, evaporator (cua txias), kub tswj lub thawv, cua kab hlau rhuav, tooj liab yeeb nkab, expansion valve thiab lwm yam fittings.