CHAPTER IV.

REFRIGERATION EQUIPMENT 29

Ammonia Machines -- Ammonia -- Compressor -- Condenser -- Receiver -- Cooler -- Condensing Water -- Unit Basis -- Computing from Unit Basis -- How Rated -- Freezer Requirements -- Freezers in Small Plants -- Cylinder Arrangement -- Why Brine Circulation -- Air Circulating -- Force Draft -- Coil Room Systems -- Brine Chilling -- Brine Methods -- Types of Brine Coolers -- Balanced Brine System -- Direct Expansion -- Two Stage Compressors.