Replacement Solar Hot Water Controller Board to suit Solar Power Solar Hot Water Controller (Closed Loop)
The Saxon 400 litre split solar hot water system or the Solar Power SP400 solar hot water system is a low pressure closed loop solar hot water system, so it requires a slightly larger pump such as the Grundfos 15-65B . This system has an unusual set-up where the electrical circuit controlling the element, also controls the solar controller. Because of this, there is no real way of separating your solar components from the electrical hot water boost to know if you solar system is actually working. Often it is not until people start looking into their excess power bills that they find their system is not working and hasn't been for some time.
The best way to fix this system, to get maximum gain from the solar, is to have your electrician install an external GPO on a different circuit and install a complete pump station. The complete pump station for this system replaces everything on the solar side with the latest in solar components. A complete pump station to suit this system comprises:
- UV pump station cover (this protects all your solar components)
- RESOL digital solar controller - this controller provides the facility to get a temperature reading on your roof and tank sensors to check how your system is working
- Grundfos 15-65 B circulating pump
- Solar rated non-return valve - this assists in protecting your pump
- Flow meter - this will allow you to be able to check if your pump is circulating water
- AEHT-10 Air admittance valve - this allows built up air in your collector to be bled.
Click here to check out the Solar Hot Water Parts Replacement Pump Station for this system
If you're unsure which part suits, simply contact us .