Single stage evaporative cooler (swamp cooler)

Air Conditioning and Heat Pumps · Heat Pumps in Theory · printed page 226 (PDF page 227)

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Text in the illustration

note evaporative coolers - especially single stage - work best in dry climates
blower
electric motor
water distribution lines
evaporative pads (4 sides)
warm air from exterior (lower humidity)
to electrical supply
float valve
to water supply
float
duct
bleed-off valve
recirculating water pump
cold air to interior (higher humidity)

Generated explanation

The illustration shows a cutaway schematic of a single-stage evaporative cooler, also called a swamp cooler. Warm, lower-humidity exterior air enters through evaporative pads on four sides, and an electric-motor-driven blower delivers colder, higher-humidity air through a bottom outlet duct to the interior. A recirculating water pump supplies water distribution lines above the pads from the bottom reservoir. A float and float valve control the incoming water supply, and a bleed-off valve is identified on the water circuit. The note states that evaporative coolers, especially single-stage units, work best in dry climates; no defects are depicted.

Components

evaporative cooler evaporative pads blower electric motor belt and pulleys water distribution lines recirculating water pump water reservoir float float valve bleed-off valve water supply connection electrical supply connection outlet duct

Materials

water evaporative pad media

Related illustrations

1265.6

Two stage evaporative cooler (swamp cooler)

· p. 226

The cutaway schematic shows a two-stage evaporative cooler with a motor-driven blower drawing warm, lower-humidity outdoor air into an indirect cooling module. Air in the heat exchanger tubes is cooled by a separate evap