The Hotun Hiflo dry trap tundish is designed for large unvented hot water heaters (over 15 litres ...The Hotun Hiflo dry trap tundish is designed for large unvented hot water heaters (over 15 litres capacity) and boilers (when used with a Hotun shield). It ensures a safe, secure, and visible discharge from the boiler's temperature/pressure relief valve to a waste/soil pipe, preventing foul odours from re-entering the building and ensuring a compliant connection. This system provides a safe method for discharging water from a boiler or water heater to an internal pipe, preventing cross-contamination between an overflow and a drain pipe. The tundish blocks unsanitary water from the drain pipe entering the system. Outlet connection: 32mm Universal/Pushfit. Inlet connection: Half BSP - flat faced top connector. Rated flow rate: 18 L/Min. Max flow rate: 20 L/Min. Temperature rating: 120°C. Dimensions: 126mm (H) x 57mm (Diameter). Supplied with: Rubber 'O' ring. Suggested for Large unvented cylinders and boilers.
This guide is for those installing or maintaining the Hotun Hiflo Dry Trap Tundish, designed to safely manage discharge from large unvented hot water heaters and boilers. The primary benefit is preventing foul odors from re-entering buildings, ensuring a compliant and secure connection. Note that this model is specifically for systems with a high flow rate.
All features
Colour
White
Model Part Number
HHW100C
Brand
Hotun
Extended Product Information
FAQs
What is the purpose of the Hotun Hiflo Dry Trap Tundish?
It is designed to safely discharge water from a boiler's temperature/pressure relief valve to a waste pipe, preventing foul odors and ensuring compliance.
What type of connection does the tundish have?
The outlet connection is 32mm Universal/Pushfit, and the inlet connection is Half BSP - flat faced top connector.
What is the maximum flow rate?
The maximum flow rate is 20 L/Min.
What is the temperature rating of the tundish?
The temperature rating is 120°C.
Is the Hotun Hiflo suitable for all boilers and water heaters?
It is suggested for large unvented cylinders and boilers (over 15 litres capacity).
How do I install the Hotun Hiflo?
Connect the outlet to the waste pipe and the inlet to the temperature/pressure relief valve, ensuring all connections are secure and watertight.
What should I do if the tundish leaks?
Check all connections, replace the rubber 'O' ring if necessary, and ensure all fittings are secure.
How often should I inspect the Hotun Hiflo?
Inspect the tundish regularly, ideally during routine boiler maintenance, to ensure it is free of blockages and that all connections are secure.
Troubleshooting
Water leaking from the tundish.
Check all connections to ensure they are properly sealed. Replace the rubber 'O' ring if necessary. Make sure the inlet and outlet pipes are securely connected.
Foul odors detected.
Check the tundish for blockages. Ensure the waste pipe is clear. Consider professional inspection to identify the source of the odour.
Slow flow rate.
Check for any obstructions in the tundish or the connected pipes. Clean the tundish if needed.
Pros and Cons
Pros
Prevents foul odors from entering the building.
Ensures a safe and compliant discharge route.
Suitable for high-flow applications.
Easy to install with universal connections.
Durable and reliable performance.
Compact size for flexible installation options.
Cons
Specifically designed for larger systems (over 15 litres).
Requires proper installation to ensure optimal performance.
The white colour may not match all existing plumbing components.
May require professional installation for some users.
Regular inspection is needed to ensure it remains free of debris and blockages.
Setup, Compatibility & Care
Setup
Outlet Connection: Connect the 32mm Universal/Pushfit outlet to the waste/soil pipe.
Inlet Connection: Attach the Half BSP flat-faced top connector to the temperature/pressure relief valve.
Ensure a Secure Fit: Use the supplied rubber 'O' ring to ensure a watertight seal.
Compatibility
Designed for large unvented hot water heaters (over 15 litres) and boilers.
Compatible with standard 32mm waste pipe systems.
Suitable for systems with a flow rate up to 20 L/Min.
Care
Regularly inspect the tundish for any blockages or debris.
Ensure the waste pipe is clear and free-flowing.
Clean the tundish with a damp cloth if necessary.
Check the rubber 'O' ring for wear and tear during routine maintenance.