Hace air handling units are equipped with ahricertified cooling coils. Water heating and cooling coils are furnishedwith 58 copper tubes mechanically bonded toaluminum fins. Water cooling coils are available in3, 4, 5, 6, 8, 10, & 12 rows deep and water heatingcoils are from 1 to 4 rows deep, where initial cost is requested to be low, coils can be furnished with 38 and 12 copper tubes but water pressure drop will be on the high side and can affect operational cost. Direct expansion coils are furnished with 12 or 38 tubesmechanically bonded to aluminum fins as a standard. Thesecoils are furnished with brass sweat type distributor andsuction connection made of copper. These coils are locallymanufactured by hace. Optional corrosion protection are available upon request as follows;1. Copper tube - copper fins construction2. Copper tube - copper fins electrotined after fabrication (this is more suitable for stringernt and in same line inupper or lower sentence)3. Copper tube - aluminum fins with phenolic coatingthese coils are manufactured locallyby hace and are certified to complywith the requirements of ahristandard 410 - forced circulat