Crankcase Pressure Regulator (CPR)

• Valve operation CRO (close on a rise of outlet)
  
  
• CROT --  has a pressure tap
  
  
• Adjustment under cap (watch service manifold for pressure adjustment)
  
  

Purpose

• To limit the amount of pressure to a low temperature compressor during hot pull down and defrost thus preventing compressor overloading
  
  

Location

• In the suction line close to the compressor, downstream of any other accessory