Us Installation recommendation
Installation recommendation:
Elterm London is one of the UK's leading distributors of Electric boilers, low-loss headers, and other heating-related products
We present you with several recommendations regarding the method for the installation of our boilers:
For safety reasons, products should only be installed by a competent person
according to current regulations and the manufacturer’s instructions.
Copy-off instructions are available on the product page at the bottom of the description section.
https://eltermlondon.co.uk/pages/sb-manual
- First, we recommend connecting our heaters with cables with a cross-section of at least 10 mm², 3 cores for one phase or 5 cores for 3-phase, for a boiler up to 15kW. For stronger ones, please choose a larger size. We recommend consulting with your electrician.
- 10mm² 3 Core HO7RNF Rubber Flexible Cable
- 10mm² 3 Core SY Control Flexible Cable
- 10mm² 5 Core HO7RNF Rubber Flexible Cable
- 10mm² 5 Core SY Control Flexible Cable
Then, we recommend installing the Rotary Isolator 4 Pole in a close area of the boiler, with a power supply adequate to the boiler's power requirements.
Please don’t use the oven isolator; it doesn’t work!
In the long term, these insulators overheat and pose a fire risk.
I know this from customer stories and our observations when handling warranty complaints,
when an unauthorised installer installed the boiler.
For user safety, do not use these isolators.
Only recommended is this one.
- Use only metal connections for safe valve discharge without any other material.
such as a flexible hose;
You can use copper, stained steel or PVC pipes,
But please ensure the manufacturer approves them for high-temperature operation.
Don’t use any extra valve or anything similar, such as a no-return valve, etc.; this is unacceptable and will result in loss of warranty,
and may also cause incorrect operation of the safety valve, which may result in danger.
Before initiating the boiler, confirm it maintains the appropriate pressure within the central heating system. The optimal pressure range is 1.5-2 Bar.
And that the air was released from the system.
Helpful Installation Diagram:
A bypass must be installed in the installation to allow the boiler to cool down.
Using a hydraulic low-loss header eliminates the need for an automatic bay pass.
*The diagrams are for illustration purposes only. Always adapt the connection method to your installation. Your connection may differ depending on the components used.
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Only employ a voltage-free external controller; consider that the dedicated connection is not intended for high voltage. This could harm the motherboard and negate the warranty.
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To use a high-voltage regulator, a DIN Rail Household AC Contactor is required, available from a store or independent supplier.
Or an optional high-voltage signal Wiring Diagram to get a voltage-free signal on the S-plan.
When installing a boiler, we highly recommend using a magnetic filter, and
We recommend using a descaler in hard water areas for any combi or storage boiler. 
ARAGO ionisers - Water Descaler -You can buy here
Ensure you have registered your warranty at eltermlondon.co.uk
and the installer has completed the appropriate documents.
Of course, we inform you about our installation services, which provide professional installation and an additional extended warranty option.
We hope that our product will meet your expectations. If you have any questions, please contact us:
(+44) 7886253808