Johnson Controls York YHAU-C - How It Works

How it works
The single effect (steam-fired) absorption chiller uses deionized water as the refrigerant and
lithium bromide (LiBr) solution as the absorbent.
The vapor pressure of the lithium bromide solution is lower than the vapor pressure of the
refrigerant. The vapor pressure of the LiBr solution is directly related to the amount of refrigerant
(water) present in the solution with the LiBr and the solution temperature.
Figure 2: Single effect steam absorption chiller cycle diagram
15YHAU-C Single Effect Steam-Fired Absorption Chiller