MNL_Standard-NoSpecs_ACWC-18to240-E-_(0713).docx
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2.
Automatic/Manual refill or change over systems should be cautious and attentive to the specific concentration of
mixtures dilution over time. Measure the system’s concentration regularly.
3.
Glycol concentrations affect cooling performance. As the temperature reduces, the fluid becomes thicker which
may reduce heat transfer capabilities and reduces the circulating pump performance.
H.
PERFORMANCE
1.
The basic function of a chiller is to “chill” fluid by removing heat from one location and transferring it to another
by using the special properties of refrigerants. The performance or COOLING capacity of a chiller is based on a
standard set of operating conditions. Changing the conditions, results in different capacity rating of the chiller.
2.
Some conditions are:
a)
Ambient conditions (for air-cooled systems)
b)
Condenser fluid (for water-cooled systems)
c)
Type of fluid being chilled
d)
Design and setup of the chiller
e)
Leaving fluid temperature (Supply fluid to process from chiller)
f)
The other side of the equation is the Heat load. Some of the main conditions affecting load are:
g)
Entering fluid temperature (Return fluid to chiller from process)
h)
Flow rate of fluid
IMPORTANT!!
DAMAGE CAUSED BY FLUIDS WITH INADEQUATE FREEZE POINT PROTECTION IS NOT CONSIDERED FAILURE
DUE TO PRODUCT OR WORKMANSHIP AND IS NOT COVERED BY WARRANTY.
