Vinotemp VINO4500DS User Manual

                                                                                

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k.  Low suction pressure and low to normal head pressure 
      High superheat and normal to high subcooling 
l. 

Low suction pressure and normal head pressure 

      High superheat and normal subcooling 
m.  Low suction pressure and high head pressure 
      High superheat and high subcooling 
n.  Low  suction pressure and high head pressure 
       High superheat and high subcooling 
o.  low to normal suction pressure and high head pressure 
       High to normal superheat and high subcooling 
 

k. Evaporator 

restricted 

 
l. 

Expansion valve restricted  

 
m.  Both evaporator and condenser 

restricted 

n. Liquid line restricted before 

receiver 

o. Condenser 

restricted 

 

 
3. Valve Operation 
 

 

   

 

 
Back Position: Process and manometer port closed for normal operation 
Front Position: Main connection to liquid or suction line closed 
Middle Position: All ports open for vacuum, charge and measurement