hotun 100C
Product Overview
Now with 10 Year Warranty!
The hotun 100 range of products, combines a tundish and dry-trap to provide a safe and visible discharge from a relief valve direct to a local waste or soil pipe, allowing a flow of water from the discharging T/PRV, whilst eliminating the risk of foul odours from the foul system entering back into the building AND providing regulation required, back-flow contamination & back-siphonage protection to prevent contamination of any wholesome water when connecting to the waste pipe (Category 5 risk water)
In a relief valve discharge application, due to the infrequent nature of the relief valve operating, a wet trap would dry out in time and thereafter allow foul odours back into the building, so is therefore not allowed to be used for PRV discharges.
hotun was invented and patented back in 2014/15. It was the very first and original, dry trap tundish to be available specifically for boiler and unvented water heater installations as a one product solution and was the very first dry trap tundish to be accepted for use with many of Britains major and most respected boiler manufacturers, such as Worcester Bosch, Vaillant, Glowworm, Ideal, Baxi, Potterton, Ariston, Intergas etc.
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- hotun is specifically designed and manufactured to achieve compliance for ALL aspects of the (T)PRV to drain installation, including easy visibility at the point of diagnosis with its open sided construction (a vital consideration for easy maintenance)
- The hotun tundish can, if necessary, be easily cleaned whilst in situ, meaning that you do not need to remove it or take it apart for maintenance or cleaning
- The spring and bolt are made from high quality A2 stainless steel meaning they will last for the lifetime of the system
- The valve is made from our own molded high quality drainage specification EPDM rubber, we do not use sheet material meaning we are fully in control of the quality of the material.
- hotun is rated for use up to 120°C so is suitable for use in all applications requiring a temperature rated dry trap tundish
- all of our tundish products now carry a 10 year conditional warranty
- Compatible with hotun detect, in-tundish alarm unit
All hotun dry trap tundishes are specifically designed to achieve full compliance (when installed in accordance with our installation instructions) with Water and Building Regulations.
Please note that, where required, the D2 and connecting soil pipe must be suitably rated for the appropriate temperatures and flow rates expected when the Temperature Relief Valve (TRV) is operating under failure conditions.
hotun 100C is WRAS approved –
hotun 100C white
dry trap tundish
hotun 100C black
dry trap tundish
Specifications - Connections, Flow Rate, Applications
|
Inlet pipe size |
15mm (or 1/2″ for imperial applications) |
|
Inlet connection |
15mm Compression nut and olive (supplied) |
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Outlet pipe size |
22mm Copper or 21.5mm plastic |
|
Outlet connection |
22mm Compression nut and olive (supplied) |
|
Rated flow rate |
12LPM |
|
Max flow rate |
16LPM (with optimised pipework – 200mm straight pipe before tundish see optimised diagrams below) |
|
Usual applications |
|
NB
1. All D2 downstream pipework and soil pipes for unvented hot water heaters (with Combined T/PRV’s) must be suitably rated for water discharging at 90-95°C.
2. Appliances with PRV’s only (ie boilers and water heaters of less than 15L capacity) do not need a D2 waste pipe temperature requirement
Typical Installation Diagrams
Click either image to enlarge in a new page
Optimised flow pipework configuration example diagram
Click on image to enlarge in new window
Technical Drawings
For a printable PDF version, please click on the link below
hotun hiflo 100C white
dry trap tundish
hotun hiflo 100C black
dry trap tundish
Specifications - Connections, Flow Rate, Applications
|
Inlet pipe size |
15mm (or 1/2″ for imperial applications) |
|
Inlet connection |
15mm Compression nut and olive (supplied) |
|
Outlet pipe size |
32mm – (1 1/4″ equivalent) |
|
Outlet connection |
Suitable for 32mm or 1 1/4″ push-fit or universal mechanical fittings – see compatible connection diagrams below – (The hotun hiflo 100C outlet size is not compatible with solvent weld fittings) |
|
Rated flow rate |
18LPM |
|
Max flow rate |
20LPM (with optimised pipework – 200mm straight pipe before tundish see optimised diagrams below) |
|
Usual applications
|
|
NB
1. All D2 downstream pipework and soil pipes for unvented hot water heaters (with Combined T/PRV’s) must be suitably rated for water discharging at 90-95°C.
2. Appliances with PRV’s only (ie boilers and water heaters of less than 15L capacity) do not need a D2 waste pipe temperature requirement
Typical Installation Diagrams
Click on any image to enlarge in new page
Compatible 1 1/4" Outlet Connections
The 1 1/4″ (32mm) outlet on the hiflo version is compatible with either universal compression or push-fit fittings.
Due to the material used in hotun plastic (acetyl) it will not successfully solvent weld, and due to its size, female solvent weld fittings will be too large for the male spigot.
It must also be noted that many solvent weld pipes are not of a sufficient grade (material) and are therefore not suitable to be used in unvented hot water heater D2 discharges when connected to a TEMPERATURE RELIEF VALVE discharge line*.
*NB – this note about the suitability of pipework materials is only relevant to applications that have a TEMPERATURE RELIEF VALVE operating at temperatures above 90°C over several cycles of flow.
For all applications that have a pressure relief valve only (eg boilers and small unvented water heaters) the issue of temperature and volume of water is not an issue and a much wider range of materials will be suitable for use.
If you are unsure of these requirements please feel free to contact our technical team on our contact us page and we will be able to fully discuss these issues with you.
Optimised flow pipework configuration example diagram
Click on image to enlarge in new window
Technical Drawings
For a printable PDF version, please click on the link below
hotun shield 100C
Headline Information - Purpose
To prevent deliberate or accidental contact with potentially scalding water dripping/flowing through the open tundish
Note
hotun shield HS100C is only compatible with the “100” range of hotun tundishes, ie threaded inlet. They are NOT compatible with our SF (Speedfit) range of tundishes
Headline Information - When to use shield
hotun shield is designed to prevent the user from accidentally touching potentially scalding hot water.
It is therefore used on a risk assessment and job by job basis with the installer determining what the risk is (if any) and if there is a justification for fitting the shield with the additional safety that the shield brings
Compatible hotun 100 tundish products
hotun shield (HS100C) is compatible with the “100C” range of hotun tundishes, ie threaded inlet.
They are NOT compatible with our SF (Speedfit) range of tundishes
hotun protect 100C
Headline Information - Purpose
To prevent deliberate or accidental contact with potentially scalding water dripping/flowing through the open tundish
Note
hotun protect HP100C is only compatible with the “100” range of hotun tundishes, ie threaded inlet. They are NOT compatible with our SF (pushfit) range of tundishes
Headline Information - When to use shield
hotun protect is designed to prevent the user from accidentally touching potentially scalding hot water.
It is therefore used on a risk assessment basis with the installer determining what the risk is (if any) and if there is a justification for fitting the product with the additional safety that the cover brings
Compatible hotun 100 tundish products
hotun protect (HP100C) is compatible with the “100C” range of hotun tundishes, ie threaded inlet.
They are NOT compatible with our SF (pushfit) range of tundishes