Description
The Honeywell/Resideo V4043A1259 is a high-performance, two-position zone valve designed to deliver reliable flow control in hydronic heating and cooling systems. Featuring a durable brass, ¾″ sweat‑connection body and 120 VAC motorized actuator, this valve is perfectly suited for zoning baseboard radiators, convectors, fan coils, and other terminal units—offering smooth operation in tight mechanical assemblies.
Features:
- Manual opener (on all models, except straight-through, normally open valves) for valve operation on power failure; valve returns to automatic position when power is restored.
- All models may be installed without disassembling the valve.
- Compact construction for easy installation.
- Complete powerhead may be removed or replaced without breaking plumbing line connections or draining the system.
- Motor may be replaced without removing the valve body or draining the system.
- Suitable for heating and cooling applications











