With its excellent thermodynamic properties and high efficiencies, ammonia (aka NH3; refrigerant name R-717) has long been the preferred refrigerant in low-temperature (LT) cold storage warehouses...
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The Copeland Commercial HVACR Variable Frequency Drive – EVM Series, covers ½ to 30 HP, has single and three phase input options, and is simple to use with Bluetooth onboard.
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The Copeland Commercial HVACR Variable Frequency Drive – EVH Series, covers 1-250 HP, has three-phase input options including 575v and expanded control functions, such as CO2 and other applications.
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