The interactions among pieces of equipment in the cooling system make it important for facility executives to take a look at the entire system when evaluating chillers. For example, if a chiller can get lower entering condenser water temperature, a variable speed drive can be used to slow the compressor and save energy. Sometimes a little extra investment in that end can help reduce operating costs and chiller first cost. To determine which combination of products is most cost-effective, facility executives need to evaluate paybacks on each option and take note of any other impacts on building operations. Of course energy isn't the only factor facility executives should evaluate.
Size can be another key in chiller replacement projects.
Some chillers can be easily disassembled so they can be moved through standard doorways.