SEP91A-601R Johnson Controls Sensing Element

Overview

The Johnson Controls SEP91A-601R is a replacement sensing element (also known as a power element) designed for commercial and industrial HVACR service. It provides precise head-pressure control for water regulating valves, allowing technicians to rebuild the valve top-side rather than completing a full valve body replacement. This element operates by accurately sensing refrigerant pressure to modulate water flow to the condenser, ensuring optimal system efficiency, preventing high-pressure cutouts, and maintaining stable condensing temperatures in demanding commercial environments.

Features

• Facilitates a cost-effective top-side rebuild, eliminating the labor and hardware costs of replacing the entire valve body.
• Heavy-duty bellows construction provides reliable pressure modulation and enhanced operational efficiency.
• Direct OEM factory replacement engineered to restore original performance and extend valve service life.
• Simple field installation designed for straightforward maintenance by qualified HVAC technicians.

Specifications

• Compatibility: Designed for 3/4-inch pressure-actuated water regulating valves.
• Valve Series: Works with Johnson Controls V46, V46N, and V48 series valves (including V46AC models).
• Operating Pressure Range: Effectively manages condensing pressures across a spectrum of 70 to 260 psig.
• Element Style: Style 45 pressure element (some configurations cite Style 5).
• Capillary Length: Features a 30-inch capillary line.
• Connection Size: 1/4-inch male SAE flare connection.

Applications

• Used in commercial refrigeration and cooling systems to regulate water or glycol flow to a water-cooled condenser.
• Ideal for maintenance, repair, and field rebuilds of non-modulating 3/4-inch water regulating valves.
• Commonly applied in systems using non-corrosive refrigerants, such as ice machines, computer room air conditioning units, ice cream machines, and commercial refrigeration cases.