Sporlan 903072P Control

When you're dealing with air-cooled condensing units in regions with fluctuating temperatures, maintaining a consistent head pressure is a requirement, not an option. The Sporlan 903072P, also known as the LAC-5-210, is a heavy-duty, three-way modulating head pressure control valve designed specifically for low ambient conditions. This valve utilizes a 5/8" ODF connection and features a factory-preset 210 PSI setting to ensure your system maintains a stable pressure differential across the expansion valve, even when the mercury drops. By restricting liquid flow from the condenser and simultaneously diverting hot gas directly to the receiver, this refrigeration pressure regulator effectively floods the condenser, reducing its capacity to keep your discharge and liquid line pressures within spec.

The Sporlan LAC-5-210 is built for reliability in commercial refrigeration and air conditioning applications. It eliminates the common issues of low suction pressure and evaporator icing caused by underfeeding thermostatic expansion valves during cold weather starts. With a maximum rated pressure of 450 PSIG and a robust brass body with copper connections, this low ambient control is the standard for veteran technicians who need a "set it and forget it" solution to condenser flooding. Note that this specific model is the "P" version, often indicating OEM packaging or specific bulk configurations, and typically does not include an internal strainer.

• Ensures consistent refrigerant flow to the expansion valve during low ambient startups and steady-state operation.
• Features a high-integrity brass body with copper ODF solder connections for leak-free, high-pressure performance.
• Automates condenser flooding and hot gas bypass without the need for complex electrical head pressure controls or fan cycling switches.
• Maintains a 210 PSI set point to prevent low-pressure cutouts and system short-cycling during winter months.
• Compatible with a wide range of common refrigerants used in modern HVACR systems.

Is the Sporlan LAC-5-210 adjustable?
No, the LAC series are non-adjustable, factory-set modulating valves. This specific unit is fixed at 210 PSI to provide consistent receiver pressure regulation.

What happens if the receiver pressure is higher than 210 PSI?
During summer or high-load conditions, the valve remains in the "open" position for liquid flow from the condenser to the receiver, effectively staying out of the way until it is needed to boost pressure.

Can this valve be used with R-404A or R-448A?
Yes, as long as the 210 PSI set point aligns with your system’s design requirements for maintaining a sufficient pressure drop across the TEV.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.