Call Alicia (+86-371-69152892) if you want to buy this bus A/C kits with heating and return air system ----info@guchen.com---- Guchen industry is the largest bus air conditioner manufacturer SD-04 Air conditioning system with heating system, in this video you will watch the A/C internal structure including condenser, evaporator, compressor, magnetic clutch, alternator, fresh air device, blower, fan, return air grille, control panel, pipeline system and electric-controlled system. The reservoir, filter direr, sight glass, cut-off valve, expansion valve, and fresh air device are located in the interior of the evaporator. SD-04 Rooftop mounted bus air conditioner is designed for 8-9.3 meter city bus or 8-9.5 meter coach, the compressor is powered by vehicle engine read more about SD-04 air conditioner : www.guchen.com/bus-air-conditioner/sdd-04.html want to know how does bus air conditioining system work? please reading : www.guchen.com/industry-news/how-does-bus-ariconditioning-work.html GUCHEN website: www.guchen.com/ Facebook: www.facebook.com/guchen.industry Thanks for your watching.

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