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D-1 l Appendix
Chiller Capacity and Derate Chart
If operation of the chiller is less than 45°F {7.2°C}, a glycol and water mixture
is required. See Operation section entitled, Filling the Chiller.
Ambient conditions affect air-cooled chiller operation and capacity. Standard
rating is at 95°F {35°C} entering air temperature. For ambient air conditions
greater than 95°F {35°C}, chiller derating will occur.
Standard chiller rating is 50°F {10°C} leaving water. For all other temperature
settings, output tonnage is altered as follows:
Output Full Available %
Temperature °F {°C} Capacity
60°F {15.5°C} 105%
50°F {10°C} 100%
45°F {7.2°C} 90%
40°F {4.4°C} 80%
35°F {1.6°C} 70%
30°F {-1.1°C} 60%
25°F {-3.8°C} 50%
20°F {-6.7°C} 40%
NOTE: Models must be positioned so that the condenser air inlet is no warmer than 95°F
{35°C} and the condenser air outlet is not blocked or restricted in any way.
✐
NOTE: Locate models away from heat producing equipment. These items will affect ambi-
ent air conditions and the performance of the chiller.
✐
NOTE: For chiller operation
below 45°F {7.2°C}, the
chiller’s control must
be
configured properly. Contact
Conair Service.
✐
IMPORTANT: A correct mixture of
glycol and water must be used as
process coolant for operation below
45°F {7.2°C}.
See Installation sec-
tion entitled, Filling the Chiller.