An apparatus comprising: a multi-tower regenerative dryer system having a first drying tower and a second drying tower and structured to remove moisture from a compressed air stream provided through an intake passage from a compressor; a purge blower in selective fluid communication with the first drying tower and the second drying tower, the purge blower being structured to convey ambient air to the first drying tower when placed in fluid communication with the first drying tower; a heater structured to heat a stream of air that flows through action of the purge blower such that heated air can be provided to the first drying tower when the purge blower is placed in fluid communication with the first drying tower; a valve system having a plurality of valves (V1 to V16) actuatable from the controller and configured to place the first drying tower in selective fluid communication with the intake passage and the first drying tower in selective communication with the purge blower; a controller configured to selectively place the first drying tower, second drying tower, and intake passage in fluid communication with each other during a regeneration cycle to conduct a cooling flow period in response to a signal associated with a temperature of the first drying tower, the controller structured to configure the multi-tower regenerative dryer system to: maintain the heater in an off condition while the purge blower provides ambient air to the first drying tower during a preliminary cool down event, wherein the valve system isolates the first drying tower from the intake passage, and wherein the valve system permits discharge of the air provided from the purge blower from the first drying tower; route the compressed air stream from the intake passage to the first drying tower to cool down a drying element of the first drying tower as a result of the drying element having been heated during regeneration thereby creating a first tower outlet air stream; and convey the first tower outlet air stream from the first drying tower to the second drying tower to absorb moisture in the first tower outlet air stream that has traversed from the intake passage to the first drying tower and then to the second drying tower. a multi-tower regenerative dryer system having a first drying tower and a second drying tower and structured to remove moisture from a compressed air stream provided through an intake passage from a compressor; a purge blower in selective fluid communication with the first drying tower and the second drying tower, the purge blower being structured to convey ambient air to the first drying tower when placed in fluid communication with the first drying tower; a heater structured to heat a stream of air that flows through action of the purge blower such that heated air can be provided to the first drying tower when the purge blower is placed in fluid communication with the first drying tower; a valve system having a plurality of valves (V1 to V16) actuatable from the controller and configured to place the first drying tower in selective fluid communication with the intake passage and the first drying tower in selective communication with the purge blower; a controller configured to selectively place the first drying tower, second drying tower, and intake passage in fluid communication with each other during a regeneration cycle to conduct a cooling flow period in response to a signal associated with a temperature of the first drying tower, the controller structured to configure the multi-tower regenerative dryer system to: maintain the heater in an off condition while the purge blower provides ambient air to the first drying tower during a preliminary cool down event, wherein the valve system isolates the first drying tower from the intake passage, and wherein the valve system permits discharge of the air provided from the purge blower from the first drying tower; route the compressed air stream from the intake passage to the first drying tower to cool down a drying element of the first drying tower as a result of the drying element having been heated during regeneration thereby creating a first tower outlet air stream; and convey the first tower outlet air stream from the first drying tower to the second drying tower to absorb moisture in the first tower outlet air stream that has traversed from the intake passage to the first drying tower and then to the second drying tower. maintain the heater in an off condition while the purge blower provides ambient air to the first drying tower during a preliminary cool down event, wherein the valve system isolates the first drying tower from the intake passage, and wherein the valve system permits discharge of the air provided from the purge blower from the first drying tower; route the compressed air stream from the intake passage to the first drying tower to cool down a drying element of the first drying tower as a result of the drying element having been heated during regeneration thereby creating a first tower outlet air stream; and convey the first tower outlet air stream from the first drying tower to the second drying tower to absorb moisture in the first tower outlet air stream that has traversed from the intake passage to the first drying tower and then to the second drying tower.