LowBoard 22 Install Guide
|Storage & floor preparation|
NOTE: If it is necessary to store the system once you have taken delivery, ensure it is kept in the following conditions:
Ensure existing slab/floor deck meets at least SR2 (5mm deviation in 2m) requirements for floor regularity (BS8204) and preferably SR1 (3mm deviation in 2m).
NOTE: The floor finish company may have their own requirements which take precedent.
NOTE: For tile & Decorative floor finishes refer Tilemaster Adhesives Ltd specification guide (IG UFH 23, see link below) or obtain specific conformation and guidance from floor finish installer or manufacturer/supplier.
NOTE: Any undulations in the floor will transfer through the LowBoard. If laying on a solid floor, a thin layer of non-compressive insulation/insulative matting can be laid prior to fitting LowBoard 22 to provide some resistance when layering over a floor. (Not applicable when laying tiles or decorative finishes see note above)
Where flows and returns are planned to run along a wall, lay a 50mm wide x 22mm high batten or LowBoard 22 offcut against the wall.
NOTE: When working with and wood or insulation based products, dust and particles become airborne and pose a hazard to health. This is particularly relevant when machining, cutting or routing. Please follow the relevant guidelines in the product safety datasheets (available on request) on reducing the risk of dust inhalation.
Starting from one corner, lay the first LowBoard 22 panel.
Leave the following gaps when laying the panels:
Continue laying the LowBoard panels across the floor in a ‘run’. Fully glue together the tongue and groove panels. Use the off cuts to start the next run of panels.
If there are multiple flows and returns that cannot be accommodated in the pre-routed channel (such as the approach to the manifold), use one of the following methods:
a) Leave a 75mm gap between LowBoard 22 panels
b) Lay 50mm wide x 22mm high battens with a 75mm gap between battens
c) Hand rout the required 12mm channels in the LowBoard panels
Starting at the manifold and referring to the OMNIE CAD design, insert the pipe into the LowBoard 22 panels by piercing the foil layer. Continue laying the pipe until all circuits have been laid.
The minimum temperature for laying the pipe should be +5°C.
NOTE: If the pipe work is kinked during the installation, the coil must be replaced or the pipe repaired with an OMNIE connector (where possible) and then pressure tested. No connections should be made unless fully accessible following the completion of the finished floor.
Once the panels and pipe have been laid, the circuits should be hydraulically pressure tested and kept under pressure while the floor finish and/or covering ply or similar are laid.
|A Quick Guide to Filling the System|
1. If the manifold is being used to pressure test all circuits at once, close both primary isolation valves.
2. Connect a pressure tester to the drain valve, vent the system of air and increase the pressure to 6 bar.
3. Once at this pressure, leave for 60 minutes. If the pressure has dropped examine the pipework. It may be necessary to pressure test individual circuits to determine if there has been damage to the pipe.
4. If the pressure is maintained and passes the test, record the results on the pressure test certificate. Have the test witnessed and certified by a third party.
5. Maintain this test pressure whilst the floor deck and finish are being laid.
SEE MANIFOLD INSTALLATION GUIDE (DOCUMENT CODE: IG UFH 17) FOR FULL INSTRUCTIONS
|Notes on Floating Floors|
The floor deck should be timber or timber composite with tongued and grooved edges.
During the initial heat up, the mixing valve should be set to supply temperature of between 20°C and 25°C which needs to be maintained for at least 3 days. After this period, the flow temperature can then be increased to the design maximum and should be held for a further 4 days to complete the process.
NOTE: Always refer to the flooring manufacturers instructions.