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TRG-TRC011-EN 31
period two
Absorption Chiller Types
notes
Each of these operating modes serves a different load requirement.
n In cooling only mode, the absorption chiller operates exactly like the
standard chiller offering. Its function is to make cold water.
n In heating only mode, the only function of the chiller is to make hot water.
n In simultaneous cooling/heating – cooling priority mode, the primary
function of the chiller is to make cold water. The heating function is
secondary and will be performed only if there is excess capacity (burner
fire).
n In simultaneous heating/cooling – heating priority mode, the primary
function of the chiller is to make hot water. The cooling function is
secondary and will be performed only if there is excess capacity (burner
fire).
When providing cooling, this type of direct-fired absorption chiller can only
supply a limited amount of heat, dependent on the current cooling load. If the
heating and cooling loads for a particular application are substantial and
simultaneous, it may be best to use this chiller to supplement, instead of
replace, the main heating equipment.
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Figure 36