Drayton Ma1/679-3 22mm Mid Position 3 Port Valve & Actuator - Hanicks - 27101
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Product Information
Full details
This Drayton 3-port mid-position valve is designed for plumbers and heating engineers needing a reliable valve for central heating systems. Its key benefit is the "snap-on" actuator for easy installation and replacement, coupled with industry-standard wiring. A minor caveat is that it is specifically a 22mm valve, requiring compatible pipework.
All features
| Model Part Number | 27101 |
|---|---|
| Brand | Hanicks |
Extended Product Information
FAQs
What is the maximum water temperature this valve can handle?
The Drayton Ma1/679-3 valve can handle a maximum water temperature of 93°C.
Can I replace just the actuator if it fails?
Yes, the actuator and motor are designed to be replaceable, allowing for easier servicing without needing to replace the entire valve body.
What pipe size does this valve fit?
This valve is specifically designed for 22mm pipework.
Does this valve require a specific voltage?
Yes, it operates on a 230V a.c. power supply.
What does 'mid-position' mean for this valve?
A mid-position valve controls both central heating and hot water, directing flow to one or both circuits as required by the system's programmer.
How do I know if the valve is working correctly?
The valve has a position indicator that shows whether it is directing flow to heating, hot water, or is in the off/mid position. You can also check system performance to see if heating and hot water are functioning as expected.
What is the maximum pressure this valve can withstand?
The valve has a maximum differential pressure of 0.7 Bar and a maximum static pressure of 8.6 Bar.
Troubleshooting
Valve not moving or responding to controls
Check the 230V power supply to the valve. Verify wiring connections are secure and correct according to the wiring diagram. Ensure the actuator is properly seated on the valve body.
Leaking from the valve body
Ensure the valve was installed correctly onto the 22mm pipework with appropriate fittings. If the leak persists, the valve may require replacement. Check system pressure is within limits.
Actuator making unusual noise
The noise might indicate the actuator is struggling to move the valve, possibly due to debris or a faulty internal mechanism. Ensure the valve is not obstructed. The actuator and motor are replaceable; consider replacing the actuator unit.
Heating or hot water not working correctly
Verify the valve's position indicator. Check the central heating programmer and thermostat settings. Ensure the valve is receiving the correct signals and moving to the appropriate position for heating or hot water demand.
Pros and Cons
Pros
- Easy to install and service due to snap-on actuator.
- Reliable 100% tight shut-off prevents energy waste.
- Standard wiring and dimensions ensure broad compatibility.
- Replaceable actuator and motor reduce repair costs.
- Clear valve position indicator for quick status checks.
Cons
- Only available in 22mm size, not suitable for other pipe diameters.
- Requires a 230V power supply, not compatible with low-voltage systems.
- Maximum static pressure limit of 8.6 Bar.
- Maximum differential pressure limit of 0.7 Bar.
- Maximum water temperature of 93°C.
Setup, Compatibility & Care
Setup:
- Ensure the heating system is isolated from the mains power supply before starting.
- Install the valve onto the 22mm pipework, ensuring correct orientation as per the system design.
- Connect the wiring according to the industry-standard wiring diagram provided with the product or system manual.
- Attach the actuator by aligning it with the valve body and pressing until the "snap-on" mechanism engages.
Compatibility:
- This valve is designed for 22mm copper or plastic pipework.
- It requires a 230V a.c. power supply from the heating control system (e.g., programmer, thermostat).
- It is compatible with standard 5-wire SPDT (Single Pole Double Throw) switching.
- Ensure system water pressure and temperature are within the specified limits (Max. differential pressure 0.7 Bar, Max. static pressure 8.6 Bar, Water temperature 93°C max.).
Care:
- Regularly check for leaks around the valve body and connections.
- The actuator and motor are replaceable, facilitating easy servicing.
- Keep the area around the valve clear for access.
- Refer to the manufacturer's manual for specific cleaning instructions. Typically, a damp cloth can be used to clean the exterior; avoid submerging or using harsh chemicals.