Honeywell V8043F1036 Valve

The Honeywell V8043F1036 is a professional-grade, two-way normally closed zone valve engineered for precise hydronic control in closed-loop systems. This 3/4 inch sweat zone valve features a high-torque actuator and a 24V spring return mechanism, ensuring reliable shut-off with a 20 psi maximum close-off pressure. Designed specifically for cycling applications, the V8043F1036 Honeywell (identical to the V8043F1036/U) utilizes a durable brass body, stainless steel stem, and a heat-resistant EPDM rubber ball plug to manage fluid temperatures up to 200°F. The integrated normally open auxiliary switch allows for seamless sequencing of circulator pumps or boiler fire signals upon the valve reaching the fully open position. For simplified field service, the powerhead and motor can be replaced without draining the system or breaking plumbing connections, while the screw terminal block provides secure electrical terminations for 24VAC wiring. A manual opener lever is included to bypass the actuator during power outages or system charging, automatically re-engaging once power is restored.

• Serviceable Powerhead: The actuator and drive motor can be replaced without disassembling the valve body or draining the hydronic loop.
• End Switch Integration: Built-in SPST auxiliary switch simplifies wiring for boiler and pump control sequencing.
• Manual Override: Features a manual opener with an automatic reset to ensure system heat can be maintained during power failures.
• Compact Profile: Space-saving design allows for installation in tight mechanical closets and baseboard enclosures.
• High-Temp Reliability: Rated for fluid temperatures from 50°F to 200°F, making it suitable for standard and high-temp boiler applications.

How do I wire the V8043F1036 to a boiler?
Connect the two motor terminals to your 24V thermostat circuit. The two screw terminals for the auxiliary end switch are typically wired in parallel with other zone valve end switches to the T-T terminals on the boiler acquisition or relay panel.

Can the Honeywell V8043F1036 be used in open-loop systems?
No, this valve is designed for closed-loop hydronic systems. Use in open-loop systems containing dissolved oxygen can lead to premature corrosion and component failure.

What is the difference between V8043F1036 and V8043F1036/U?
There is no functional difference; the "/U" suffix simply denotes a "Universal" or traditionally boxed retail version. All technical specifications and dimensions remain identical.

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.