The Johnson Controls V46AA-31 is a pressure-actuated water-regulating valve designed to modulate water flow in response to changes in refrigerant pressure. This valve is commonly used in HVAC and refrigeration systems to maintain optimal condenser pressure by adjusting the water flow rate.
Technical Specifications
- Model: V46AA-31
- Valve Type: Pressure-actuated, modulating
- Connection Size: 3/8 inch NPT threaded
- Pressure Range: Adjustable opening point from 70 to 260 psi (483 to 1,793 kPa)
- Maximum Water Pressure: 150 psi (1,034 kPa)
- Maximum Water Temperature: 170°F (77°C)
- Body Material: Cast brass
- Pressure Connection: 30-inch capillary with 1/4-inch flare nut (Style 45)
Key Features
- Modulating Control: Adjusts water flow proportionally to refrigerant pressure changes, ensuring efficient condenser cooling.
- Direct Acting: Opens on an increase in refrigerant pressure to allow more water flow.
- Durable Construction: Made with corrosion-resistant materials suitable for non-corrosive refrigerants.
- Compact Design: Ideal for applications where space is limited.
Compatible Applications
- HVAC Systems: Maintaining condenser pressure in air conditioning units.
- Refrigeration Units: Regulating water flow in commercial refrigeration systems.
- Industrial Cooling: Controlling water flow in process cooling applications.
Installation & Maintenance Notes
- Mounting: Install vertically with the pressure connection at the bottom to allow proper drainage of oil and refrigerant away from the valve bellows.Product Documentation
- Pressure Connection: Connect the refrigerant-side flare connector to the appropriate high-side pressure tap point, ensuring the capillary tube is free from sharp bends and protected from mechanical damage.
- Flushing: Manually flush the valve and fluid piping before and after installation to remove any debris that could affect performance.
- Adjustment: The opening point pressure is adjustable; use a standard service valve wrench or screwdriver to turn the range adjustment screw counterclockwise to raise the opening point pressure or clockwise to lower it.
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