JOHNSON CONTROLS
16
FORM 155.31-ICOM2.EN.UL
ISSUE DATE: 12/21/2018
SECTION 2 – PRODUCT DESCRIPTION
HOW IT WORKS
The double effect (steam fired) absorption chiller cy-
cle uses deionized water as the refrigerant and lithium
bromide as the absorbent. The vapor pressure of the
lithium bromide solution is lower than the vapor pres-
sure of the refrigerant. The vapor pressure of the LiBr
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FIGURE 2 - YHAU-CW COMPONENTS
NOTE: Temperatures and pressures on this graphic are representative; actual values may differ.
solution is directly related to the amount of refrigerant
present in solution with the LiBr salt and the solution
temperature.