Johnson Controls SET29A-622R V47AA-1 Element

The Johnson Controls SET29A-622R is a high-precision replacement sensing element designed specifically for the V47AA-1 pressure-actuated water-regulating valve. For technicians service-maintaining head pressure control in water-cooled condensers, this element provides the critical response needed to modulate flow based on refrigerant pressure changes. Featuring a 6-foot capillary tube and a 1/4 inch flare nut connection (with a Schrader valve depressor), this element ensures a secure, leak-proof interface with the system's high-side pressure port. Constructed with a heavy-duty bellows assembly, the SET29A-622R is engineered to withstand the rigorous pressure cycling common in commercial refrigeration and HVAC applications. When installing the V47 series power assembly, ensure the capillary is routed to avoid vibration fatigue, maintaining the integrity of the vapor charge within the bulb for consistent valve throttling and stable condensing pressure regulation.

Key Technical Benefits

• Direct OEM Compatibility: Specifically engineered for seamless integration with V47AA-1 series valves, ensuring factory-spec calibration.
• Extended Capillary Reach: Equipped with a 72-inch capillary tube to facilitate flexible mounting in tight mechanical footprints.
• Internal Depressor Tip: Includes a 1/4 inch SAE flare nut with a built-in depressor for direct connection to access valves without requiring additional adapters.
• Durable Bellows Design: Built to provide repeatable linear movement, critical for precise mechanical water-modulating valve operation.
• Field Serviceable: Allows for the restoration of valve function without removing the entire valve body from the water line, reducing labor time and system downtime.

Common Installation Questions

Does this element require a specific refrigerant type?
The SET29A-622R is designed to work with common high-pressure refrigerants typically found in V47 valve applications, provided the pressure ranges align with the valve body's spring setting.

Can I repair the capillary if it is kinked?
No. The sensing element is a sealed system containing a precise charge. If the capillary is breached or severely kinked, the internal pressure will be lost, and the replacement power element must be replaced to restore valve modulation.

How do I ensure a leak-free connection at the port?
The 1/4 inch flare nut should be tightened to standard torque specifications for brass fittings; always check for leaks at the Schrader interface during commissioning.

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.