UK Underfloor Heating :: DIY Zone

Underfloor Heating - DIY Installation Instructions

About the Manifold

Manual Bleeders

• Removes unwanted air from the system.

Fill and Drain Points

• Used for filling and testing.

Thermostatic Head

• Used to mix the high temperature boiler flow to the correct mixed water temperature as set on the thermostatic head.

Pump Valves

• Used when filling the system and isolating the pump.

Fitting the Manifold

The manifold should be sited as near to the circuits as possible and fixed vertically to the wall, with the bottom section approximately 400mm above floor level.

It is a simple job to enclose the manifold on completion of the installation.

Connecting the pipe to the Manifold

The nuts, ring and inserts come attached to the manifold.

To fit the pipe

1. Remove nut, ring and insert from manifold.
2. Place nut, then ring over pipe.
3. Push insert into pipe.
4. Push made up pipe end tightly into return (top) manifold fitting.
5. Slip ring up pipe until it touches the fitting.
6. Tighten nut.
7. Lay pipe onto floor as shown in pipe lay out.
8. Connect back into flow (bottom) manifold, repeat for next circuit.

Important

Ensure pipe end has been cut square.

When tightening pipe onto manifold fittings, hold fitting with spanner whilst tightening pipe nut.

Once the pipe has been connected to the return manifold, laid according to pipe layout drawing and connected back into the corresponding flow manifold connection, it is now a complete circuit.

When all circuits are fitted and secured, take time to check over pipework and ensure the spacings are correct and there are no kinks in the pipe.

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