1Vertical type air handling units 2.Supply fresh air,exhaust contaminated air ... -250816 Kcal)3, Optional Coil rows: 4rows, 6rows4, Optional Type: Ceiling&Vertical&Horizontal type5. Application: for air conditioning system in industrial & commercial ... .6,Fresh air or return air working condition both available.7, Stainless Steel drain pan,G4 filter, controller board for option ...