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6 TRG-TRC016-EN
notes
period one
Types of Water Chillers
Air-Cooled or Water-Cooled Condensing
The heat exchangers in the water chiller (the condenser and evaporator) have
the second greatest impact on chiller efficiency and cost. One of the most
distinctive differences in chiller heat exchangers continues to be the type of
condenser selected—air-cooled versus water-cooled.
When comparing air-cooled and water-cooled chillers, available capacity is the
first distinguishing characteristic. Air-cooled chillers are typically available in
packaged chillers ranging from 7.5 to 500 tons [25 to 1,580 kW]. Packaged
water-cooled chillers are typically available from 10 to 3,000 tons [35 to
10,500 kW].
Condenser Types
water-cooled
air-cooled
Figure 8
Air-Cooled or Water-Cooled
0 tons
0 tons
[0 kW]
[0 kW]
1,000 tons
1,000 tons
[3,517 kW]
[3,517 kW]
2,000 tons
2,000 tons
[7,034 kW]
[7,034 kW]
chiller capacity
chiller capacity
water
water
-
-
cooled
cooled
air
air
-
-
cooled
cooled
1,500 tons
1,500 tons
[5,276 kW]
[5,276 kW]
2,500 tons
2,500 tons
[8,793 kW]
[8,793 kW]
500 tons
500 tons
[1,759 kW]
[1,759 kW]
3,000 tons
3,000 tons
[10,551 kW]
[10,551 kW]
Figure 9