High Pressure Safety Valve HVAC: Description and Operation

GF83.55-P-2104-02P Pressure Relief Valve, Function
- with CODE (580) Air conditioning or Tempmatic for USA [MODELS 203]
- with CODE (580) Automatic air conditioning [MODELS 203/163 as of 1.9.01/209]
- with CODE (581) Automatic air conditioning [MODELS 203]
- with CODE (581) Comfort automatic air conditionong [MODELS 203]

The pressure relief valve is a pressure sensitive wax valve. It is used when all other pressure-dependent safety devices cannot prevent a pressure rise in the refrigerant compressor (A9).

The wax can withstand a pressure of approx. 35 bar. If the pressure increases to above this value, the wax fuse is destroyed and pressure is released through the created opening.