... ; height is 280mm. Air circulation system:air intake fan: DDF-4.5AL1, with air volume 24000m3/h total, 7.5kw/set ... , 1setone set automatic damper,10N actuatorAir outlet fan:DDF-4.5AL1, with air volume 24000m3/h total, 7.5kw/set ... 180000kcal/h, electric damper from spray to bake, oil consumption 4~6L/set, the heating time is 5~7minutes Lighting system:900Luxceiling ...