Emerson 3000 5.6Condenser, 5.7Glycol Regulating Valve, 5.7.3Testing Valve Function

Glycol/GLYCOOL-Cooled Models—Self-Contained Compressor

5.5.4Motor Ball Valve—Digital Scroll Compressors

Refer to 4.4 - Motorized Ball Valve—Digital Scroll Compressors for details on the motorized ball valve.

5.6Condenser

The condenser is designed to operate in conjunction with a drycooler. The maximum coolant pressure is 350 psig (2413 kPa).

5.7Glycol Regulating Valve

The glycol regulating valve automatically regulates the amount of coolant necessary to remove the heat from the refrigeration system, permitting more fluid to flow when load conditions are high and less fluid to flow when load conditions are low. The valve consists of a brass body, balance spring, valve seat, valve disc holders, capillary tube to discharge pressure, and adjusting screw.

5.7.1Standard Valve - 150psig (1034kPa) System for 3 & 5-Ton Units (Johnson Controls Valve) High Pressure Valve - 350psig (2413kPa) System for 5-Ton Units (Johnson Controls Valve)

For details, refer to 4.3.1 - Standard Valve - 150psig (1034kPa) System for 3 & 5-Ton Units (Johnson Controls Valve) High Pressure Valve - 350psig (2413kPa) System for 5-Ton Units (Johnson Controls Valve).

5.7.2High Pressure Valve - 350 psig (2413 kPa) System for 3-Ton Units (Metrex Valve)

For details, refer to 4.3.2 - High Pressure Valve - 350 psig (2413 kPa) System for 3-Ton Units (Metrex Valve).

5.7.3Testing Valve Function

When the refrigeration system has been off for approximately 10-15 minutes, the coolant flow should stop.

Should the coolant continue to flow, the valve is either improperly adjusted (head pressure is too low) or the pressure sensing capillary is not connected properly to the condenser.

Table 20 Refrigerant control settings psi (kPa)

Low Pressure	Low Pressure	High Pressure
Cut Out	Cut In	Cut Out
20 (137.9)	65 (448.2)	400 (2758)

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