Testing water-cooled air conditioners

Air Conditioning and Heat Pumps · Evaporator Coil (Indoor Coil) · printed page 217 (PDF page 218)

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Testing Water Cooled Air Conditioner – Testing

Text in the illustration

Testing water-cooled air conditioners
supply plenum
evaporator coil
refrigerant lines
furnace
cold air return
inlet water (house supply)
make sure that the isolating valve for the air conditioner is open
A
water-cooled air conditioner
outlet pipe
the discharge water should be 15°F to 20°F warmer than the inlet water
B
drain
condensate line

Generated explanation

The illustration shows a water-cooled air conditioner connected by refrigerant lines to an evaporator coil in the supply plenum above a furnace. A large cold-air return duct runs alongside the furnace. House-supply water enters the water-cooled unit through an isolating valve, and an outlet pipe discharges water to a floor drain. Test annotation A instructs that the isolating valve be open, while annotation B states that discharge water should be 15°F to 20°F warmer than inlet water. A separate condensate line from the evaporator coil also runs to the drain.

Components

water-cooled air conditioner evaporator coil furnace supply plenum cold-air return duct refrigerant lines water inlet pipe isolating valve water outlet pipe condensate line floor drain