Resideo TotalHome TTH222MZV - 22mm 2 Port Motorised Zone Valve, 5 Wire 230V Spring Return, Honeywell Home V4043H1056 Replacement, Central Heating

• ✅ 22mm Motorised 2 Port Zone Valve – Designed to control or isolate water flow in small bore domestic central heating systems, suitable for copper and iron pipework.
• ⚙️ Spring Return Operation – Automatically returns the valve to the closed position when power is removed, helping provide safe and reliable system control.
• 🔄 Two-Position Open / Closed Control – Provides simple and effective water flow control for heating zones, hot water circuits, and light commercial heating systems.
• 🛠️ Replaceable Powerhead Design – The actuator head can be replaced without draining down the system, making maintenance quicker and easier.
• 📐 Technical Operating Limits – Max differential pressure: 55.2 kPa; max static pressure: 863 kPa; fluid temperature range: 5–88°C; max ambient temperature: 52°C.
• 💧 Manual Lever for Filling & Draining – Built-in manual lever allows the valve to be opened manually when filling, draining, or servicing the heating system.
• ⚠️ Installation Guidance – Can be plumbed at most angles, but the valve head must not be mounted below the horizontal level of the pipework.

The TTH222MZU valves have been designed to control the flow of water in iron and copper pipe systems. Specifically designed for small bore domestic central heating systems. The valve may be plumbed in at any angle, but must not be mounted so that the valve head is below the horizontal level of the pipework. In the unlikely event of a leak, a safety hazard could result. 22mm Motorised 2 Port Zone Valve - Designed for domestic and light commercial central heating systems to control or isolate water flow. Spring Return Action - Ensures reliable valve closure when power is off, enhancing safety and efficiency. Two-Position Operation - Allows precise control of water flow with open/closed settings. Replaceable Powerhead - The Powerhead can be swapped without draining the system, saving time and effort during maintenance. Manual Lever Included - Enables easy filling or draining of the system when needed.