The Genius system has been tested with a wide variety of boilers, heat pumps and other heat sources and there are 3 Receiver Units which can be used to control these: the Single Channel Receiver, Dual Channel Receiver and Electric Switch.
Genius Starter Kit (Single Channel Receiver)
Included in the Genius Starter Kit is the Single Channel Receiver, which is most commonly fitted to a Combination boiler (for properties without a hot water tank). In many cases you can swap in the Single Channel Receiver where the wired house thermostat or boiler programmer was located as the Single Channel Receiver uses a standard backplate. You need to ensure that wiring is correct for the Single Channel Receiver before placing it on the backplate.
- If there is no existing boiler programmer then the Single Channel Receiver must be wired into the boiler as if it were an external programmer or thermostat. See wiring diagrams provided by the boiler manufacturer to confirm the wiring guides provided with this installation manual.
- If you replace the existing house thermostat with the Single Channel Receiver, and leave the existing boiler programmer (not recommended), you must inform the customer that they will have no control of the boiler if the programmer turns off. The existing programmer in this case must be set to always on or constant to make sure that the Single Channel Receiver retains control of the boiler at all times.
- If you remove the existing wired house thermostat out of the control circuit (recommended), it must also be removed from the control in the wiring centre, otherwise the Single Channel Receiver will have no control over the boiler.
Genius Starter Kit + Hot Water On/Off (Dual Channel Receiver)
Included in the Genius Starter Kit + Hot Water On/Off is the Dual Channel Receiver, which is most commonly fitted to a System boiler (for properties with a hot water tank). The existing programmer must be exchanged with the Heat Genius Dual Channel Receiver to control the heating and the hot water.
- If there is no existing boiler programmer then the Dual Channel Receiver must be wired into the boiler as if it were an external programmer. See wiring diagrams provided by the boiler manufacturer to confirm the wiring guides provided with this installation manual.
- If you remove the existing wired house thermostat out of the control circuit (recommended), it must also be removed from the control in the wiring centre, otherwise the Single Channel receiver will have no control over the boiler.
Hot Water Time & Temperature addon (Electric Switch)
Included in the Hot Water Time & Temperature addon is the Electric Switch and Tank Temperature Probe, which is used to measure the temperature of the Hot Water Tank. The Electric Switch must be wired into a switched fused spur near the Hot Water tank. Place the Tank Temperature Probe into the pocket/under the insulation.
If the Hot Water Tank has an immersion heater backup, this can be wired into the Electric Switch (output) so you can also control the heating of the hot water from the immersion heater as well as the boiler. If the Electric Switch is wired into the immersion heater, it should be covered by the same switched fused spur as the immersion heater.
- The temperature in a hot water tank will stratify, and so the Electric Switch will measure a different temperature dependent on where on the tank it is located. It is recommended to use the location of the existing Cylinder Stat or a pocket built into the Hot Water tank.
- The existing cylinder stat should be set to a temperature above the temperature required on the app. and above 60º to protect against legionella.
- For appliances rated up to 2kW use minimum 1.0mm2 flexible conductors. For appliances rated up to 3kW use minimum 1.5mm2 flexible conductors. Heat resistant flexible cable must be used if connecting the Electric Switch to an immersion heater.
General Information
The Single Channel and Dual Channel receiver units are rated to 3A maximum. They can only be used to switch a zone valve or a boiler and not a circulation pump. Controlling a circulation pump will result in damaging the receiver unit, voiding the warranty!
Standard wiring diagrams are provided with the system. If you require any other wiring diagrams, please see the website.
- Do not attempt to wire in your boiler controller if you are not 100% sure that you know what you are doing. Danger of electric shock! All wiring should conform to IEE regulations. The boiler and wiring for the boiler controller must be electrically isolated before you commence work on wiring in the boiler controller!
- To comply with G12 regulations, a hard-wired cylinder stat. must be present on every system to protect against scalding.
To download a copy of the wiring diagrams, visit: https://www.geniushub.co.uk/wiring