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Tyler Enviroguardsm and Enviroguard IIsm Control System






Annual Operating Costs
(Printable PDF format)


 The Benefits of Enviroguard sm  
 
  • Reduces system refrigerant charge up to 45% and reduces refrigerant loss over the life of the system.
  • Provides early warning of dirty condenser, failed condenser fans and refrigerant leaks.
  • Increased compressor life due to lowered compression ratios that reduce the stresses on the internal compressor parts.
  • Increased compressor life due to lowered compression ratios that reduce the stresses on the internal compressor parts.
  • Up to 40% operating cost reduction from lowered system head pressure and better subcooling. Seamless non-corrosive drain pan for ease of sanitation.
  • Improved display case temperatures due to better quality of liquid refrigerant being supplied to the expansion valve compared to conventional systems.
  • Reduced flash gas at the expansion valves improves the capacity and efficiency of the expansion valves
  • Superior product integrity allows up to 30% reduction in pull down time after defrost periods from reduced flash gas at the expansion valves as a result of liquid subcooling
  • Easier to adjust and service that conventional systems.





Annual Operating Costs
(Printable PDF format)


 Additional Benefits of Enviroguard II sm

 
Enviroguard IIsm uses Enviroguard technology, however, the amount of refrigerant used in the refrigeration system is controlled by an electronic input/output (I/O) board.
 

 

  • Improved efficiency - Enviroguard II provides up to 7% additional energy savings over the original Enviroguard. A variable differential pressure logic that maximizes subcooling while minimizing condenser TD leads to the additional energy savings through lower head pressures.
  • Easier setup and simpilfied charging procedure - Charging and setting up an Enviroguard II system requires setting the proper dip switches on the I/O board and charging each station until the LED lights come on. No valve adjustments are required.
  • Lowered maintenance - The mechanical regulating valve (SPR) that required adjustments is replaced with an electronic solenoid valve (SPR).
  • Quicker and more accurate system alarms - Since not all changes correspond to a problem; two alarm conditions were developed. A caution alarm signals system performance changes from the normal operating conditions; but not necessarily an immediate problem. A warning alarm signals refrigerant loss, sensor failure or board failure.
  • Improved reliability - Eliminating the outdoor refrigerant charged temperature sensor used with Enviroguard reduces another leak potential on the system and further simplifies installation.
  • Fail safe feature - In the event of a system I/O board failure, all the condenser fan motors remain running while a warning alarm is sent to the main controller.

Annual Operating Costs
(Printable PDF format)