Best Practices Manual Hvac.pdf

文档介绍：BEST PRACTICE MANUAL

H V A C CH ILLERS
C O N T E N T S
1 INT RO D UCTION........................................................................................................................................3
REFRIGERATION & AIR-CONDITIONING .................................................................................................................3
THE NEED FOR RADICAL THINKING......................................................................................................................3
2 R EF RIG ER AT I ON & AIR CO ND IT IO NI NG SYSTEMS.................................................4
INTRODUCTION ...................................................................................................................................................4
REFRIGERATION SYSTEM EFFICIENCY..................................................................................................................4
PRESSION SYSTEMS.......................................................................................................................5
Operating Principle ....................................................................................................................................5
Refrigerants: Ozone Depletion and Global Warming..................................................................................7
Types pressor & Capacity Control ................................................................................................10
Evaporators .............................................................................................................................................14
Condensers .............................................................................................................................................16
Expansion Valves ..................................................................................................