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LavaTap Motorised Valve - 2 Port 22mm

LavaTap Motorised Valve - 2 Port 22mm

The LavaTap 2 Port 22mm Motorised Valve is a professional-grade solution for controlling water flo...

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B&Q - Totalhome 2 Port 22mm Motorised Valve Tth222MzvReplacement For Honeywell V4043H

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B&QB&Q - Totalhome 2 Port 22mm Motorised Valve Tth222MzvReplacement For Honeywell V4043H
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Product Information

Full details

The LavaTap 2 Port 22mm Motorised Valve is designed for homeowners and heating engineers seeking a reliable, cost-effective solution for controlling water flow in domestic central heating and hot water systems. Its key benefit is providing precise zone control for 'S-Plan' and 'Y-Plan' setups as a direct replacement for common industry valves. A key consideration is that it is a 2-port valve and not a 3-port diverter, requiring careful system verification before purchase.

All features

Model Part NumberTTH222MZV
BrandLavaTap

Extended Product Information

FAQs

What type of heating system is this valve for?

This valve is designed for 'S-Plan' and 'Y-Plan' domestic central heating systems.

Can I replace a 3-port valve with this 2-port valve?

No, this is a 2-port valve and is not a direct replacement for a 3-port mid-position diverter. Ensure your system requires a 2-port valve.

How do I clean the valve?

The valve itself does not typically require cleaning. However, it is highly recommended to flush the entire heating system with a chemical inhibitor before installation to remove debris and prevent future issues.

What happens if the power goes out?

The valve features a reliable fail-safe spring-return mechanism. In the event of a power loss, it will automatically return to the closed position, preventing unintended heating.

Can the actuator be replaced without draining the system?

Yes, the actuator powerhead is detachable, allowing for quick motor replacement without needing to drain your entire central heating system.

What is the warranty period for this valve?

Please refer to the retailer or manufacturer documentation for specific warranty information, as it is not detailed in the provided product description.

What are the power requirements?

The valve operates on a standard UK 230V AC (50Hz) supply and has a power consumption of 6W when energized.

Troubleshooting

Valve not opening or closing

Ensure the power supply is connected and functioning. Check for any obstructions in the pipework. If debris is suspected, consider system flushing and refer to the detachable actuator for potential internal inspection/replacement.

Boiler not firing when valve opens

Verify the wiring of the auxiliary microswitch. Ensure it is correctly connected to signal the boiler and pump. Check the rating of the microswitch (2.2 Amps) against your system requirements.

Leak from valve fittings

Ensure compression fittings are securely tightened. Check the integrity of the pipework. If the leak persists, the valve or seals may need replacement.

Actuator head making unusual noise

This may indicate strain on the motor. Check for blockages or resistance in the valve mechanism. Ensure the valve is not being forced open or closed against an obstruction. Consider flushing the system.

Valve fails to return to closed position on power loss

This suggests a problem with the spring-return mechanism. The actuator head may require replacement.

Pros and Cons

Pros

  • Cost-effective alternative to expensive brand-name replacements.
  • Easy to install with standard 22mm fittings.
  • Detachable actuator allows for maintenance without draining the system.
  • Suitable for both S-Plan and Y-Plan heating systems.
  • Built-in microswitch simplifies wiring for boiler and pump control.

Cons

  • This is a 2-port valve and not a 3-port mid-position diverter.
  • Actuator head must not be positioned below pipework level to prevent damage.
  • Requires system flushing and inhibitor for optimal performance and longevity.
  • Compatibility verification is essential before purchase.

Setup, Compatibility & Care

Compatibility: This is a 2-port valve designed for 22mm pipes and is suitable for 'S-Plan' and 'Y-Plan' central heating systems. It is a direct functional replacement for the Honeywell V4043H series and a compatible alternative for Danfoss HPA2 system setups when replacing the complete valve. It works with standard UK 230V AC (50Hz) mains systems.

Installation:

  1. Verify that your system requires a 2-port valve for 22mm pipework.
  2. Ensure the valve can be mounted horizontally or vertically, but critically, the actuator head must *never* be positioned below the level of the pipework to prevent damage from leaks.
  3. For optimal performance and to prevent debris from jamming the valve seat, we highly recommend flushing the heating system and adding a chemical inhibitor before installation.
  4. Connect the standard 22mm compression fittings to UK copper or plastic pipework.
  5. Wire the unit using the supplied 1-metre 5-core heat-resistant cable, ensuring the auxiliary microswitch is correctly connected for boiler and pump signaling.

Care:

  • The actuator head is detachable, allowing for easier access for maintenance or replacement.
  • Periodically check for any signs of leaks around the compression fittings.
  • Avoid exposing the actuator head to excessive moisture.
  • Regularly maintain your central heating system as per manufacturer recommendations to minimize debris.

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