Information
Emmeti Underfloor Heating Manifolds Sales BrochureProduct and system guide with range information, product features and examples for Under Floor Heating applications
Emmeti Wall Hung Radiator Manifolds Sales BrochureProduct and system guide with selector tables, range information and examples for wall hung radiator manifold applications
Technical
Technical product guide differential by pass valve dimensions October 2013Technical drawing of a Manifold Differential Pressure By Pass Kit
Do flow meters affect their function? If all your flow meters are set very low, then it will be opening more frequently. You may consider whether you have the correct rated pump for your low flow system.
Can I fit on either the flow or return pipework? Fit it to the return pipework. By-pass flow is always from flow to return pipework.
Can I fit one of these with a Topway T2 manifold? Yes, it works with either the flow meter or lockshield versions. You can use either 01306160 1” or 01306162 1.1/4” which include the ball valves and rigid by-pass pipe. Or 01306174, 76 with no ball valves.
Can I fit one of these to a Floor Mixing Unit? Yes, it works with either the flow meter or lockshield versions. You can use either 01306160 1” or 01306162 1.1/4” which include the ball valves and rigid by-pass pipe. Or 01306174, 76 with no ball valves
Do you have an option of just the differential by –pass valve? Yes, although not published here, please ask for code 01406060 22mm copper compression version
How do I set them? They are provided with detailed instructions. Best practice is to calibrate them using the pump manufacturers flow curves, taking account of what the boiler needs as a minimum return flow.
How do I clean and flush out an underfloor heating system? Both new and replacement systems (a system where a new boiler is fitted is classed as a replacement system) are required by the Building Regulations
1 to be thoroughly cleaned and flushed and a water treatment inhibitor added to protect the system from further corrosion. This is also particularly important where an underfloor heating (UFH) system is added to an existing heating system, to prevent the new UFH system becoming contaminated by water in the older system which may be contaminated with corrosion sediment. For further details of how to do this consult the following guides and code of practice:
- Domestic Building Services Compliance Guide
- BS 7593 – Code of practice for treatment of water in domestic hot water central heating systems
- BSRIA Guide BG29/2012 - Pre-Commission Cleaning of Pipework Systems
- BSRIA Guide BG 4/2011 – Underfloor Heating and Cooling
Can you connect a copper pipe to any of Emmeti Manifolds? Yes but we only cater for 10mm and 15mm pipe