Versatile motor configurations with 0.5 hp motors are available in one- through three-fan units. Arranged for vertical or horizontal air discharge, multi-fan units are compartmentalized to allow individual fan cycling while preventing off-fan windmilling. The fluid coolers are constructed of mill galvanized steel fan sections and coil side baffles. Copper tubes are mechanically expanded into corrugated, full collared, aluminum fins spaced eight, 10 or 12 per inch.
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