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2008 Systems & Equipment Chapter as PDF: S38 Condensers

The condenser in a refrigeration system is a heat exchanger that rejects all the heat from the system. This heat consists of heat absorbed by the evaporator plus the heat from the energy input to the compressor. The compressor discharges hot, high-pressure refrigerant gas into the condenser, which rejects heat from the gas to some cooler medium. Thus, the cool refrigerant condenses back to the liquid state and drains from the condenser to continue in the refrigeration cycle.

A liquid cooler (hereafter called a cooler) is a heat exchanger in which refrigerant is evaporated, thereby cooling a fluid (usually water or brine) circulating through the cooler. This chapter addresses the performance, design, and application of coolers.

This standard helps system designers and equipment specifiers to effectively rate water-cooled refrigerant condensers. It does this by listing and defining the terms suggested for the rating of these condensers, and by establishing methods of test that can be used as a basis for obtaining ratings for these condensers.

This standard classifies liquid coolers by type, lists and defines the terms suggested for rating liquid coolers, and establishes methods of test for obtaining ratings of liquid coolers.

These standards are under continuous maintenance, which is a process ASHRAE uses to keep standards current through the issuance of addenda, or revisions. These addenda can be downloaded for free at the following page of the ASHRAE web site: http://www.ashrae.org/technology/page/132

Interpretations of standards, issued by the sponsoring technical committee, also may be downloaded for free at the following address: http://www.ashrae.org/technology/page/121

Errata lists are issued occasionally and may be downloaded for free at the following address: http://www.ashrae.org/technology/page/120