Trane SYS-APM001-EN manual Alternative Energy Sources, Water and electrical connections

System Issues and Challenges

Location of equipment

Location can be a major factor in contingency planning. When selecting the location of the temporary equipment, it is important to consider:

•Water and electrical connections location

•Sound sensitive areas in the facility

•Location easily accessible to service staff

•Equipment separated from the public

Water and electrical connections

•Water connection size requirements

•External stub out locations

•Sufficient power to run the temporary unit

•Possible generator requirement

Ancillary equipment

•Pumping system requirements

•Temporary hose requirements

•Electrical cable requirements

This section briefly described some of the items to consider when establishing a cooling contingency plan. There may be other considerations, depending on the application. For information about failure recovery, see page 95.

Alternative Energy Sources

Energy source redundancy is receiving increased attention due to rate variations and reliability issues brought about by the deregulation of electrical utilities across the country. There are two basic approaches to meet these issues:

•Provide an alternate source of internally-generated electricity to serve a system in the event of general failure or an unacceptably high temporary cost of electricity (time-of-day or real-time rates).

•Provide an alternate source of chilled-water producing capability, possibly fueled by natural gas, another fossil fuel, or even using low cost electricity as an alternative energy source.

Electricity generation

The design, construction, and operation of full-capacity, electrical-generation systems is well understood. The electrical-generation capacity can be sized to allow an entire facility to operate or it can be sized for an emergency

82 Chiller System Design and Control SYS-APM001-EN