Evaporative cooling is the most energy efficient and cost effective form of cooling that exists. Equipment cost is lower than a refrigeration system, installation is simple and inexpensive, and operating costs are a fraction of refrigeration systems. Evaporative cooling units are also environmentally friendly as they cool efficiently without the use of compressors or HFC refrigerants. The Evaporative Cooling ventilation system provides fresh air to the building; forcing the hot, stale air out. These units provide maximum comfort when you need it the most. The hotter and drier the air, the greater the cooling effect. The Indirect system uses evaporative media in a cooling tower to cool water down to temperatures approaching the wet bulb temperature. This water is then pumped through a water coil to lower the entering air temperature without adding any moisture to the airstream. An Indirect/Direct system will also have a direct evaporative module downstream of the indirect section. This section will lower the dry bulb temperature even more by adding moisture to the airstream. The Aztec ASC series offers air deliveries from 1,500 CFM to 37,500 CFM. Optional indirect fired heating sections can be added with up to 1,400 MBH Input.

Features:

• Stainless steel integral cooling tower with submersible type pump.
• Stainless steel direct evaporative section.
• 6 row, aluminum fin/copper tube indirect cooling coil section.
• 12" media in direct evaporative section.
• PVC plumbing.
• U.L. listed, single phase submersible pump in direct evaporative section.
• Adjustable sump water bleed-off valve assembly in cooling tower and direct evaporative section.
• Low sump water level shut-off switch in cooling tower and direct evaporative section.
• Centrifugal, forward curved, DWDI supply air fan tested and constructed to AMCA standard 210 for cooling only units or centrifugal, backward airfoil, SWSI plenum type blower rated in accordance with AMCA standard 211 and bearing the AMCA seal for heating and cooling units.
• V-belt drive package sized 25% over motor nameplate rating.
• U.L. listed single or three phase motor ODP supply fan motor.
• Adjustable motor base for maximum belt life.
• Internal seismic-rated fan/motor isolation with flexible ducting between fan and unit.
• Cabinet constructed of galvanized steel with corrosion-resistant enamel finish.
• Formed galvanized steel channel base and intermediate equipment supports. Suitable for slab or curb mounting.
• Insulated cabinet.
• Supply air, front access, 2" thick, 30% efficient filter section.
• Hinged, double wall, insulated access door.
• Weather resistant, hinged outside air intake louvers and birdscreen.
• Integral control box with non-fused disconnect switch for single point power connection.
• Listed by ETL Testing Laboratories.