How Does It Work?
In normal operation the Solar iBoost+ has control of the immersion and diverts excess solar energy when available.
When the heat pump needs to complete a legionella cycle or other boost functions, control is automatically switched to the heat pump supply to activate the immersion. A set of relays within the Heat Pump Interface switch between the Solar iBoost output and Heat Pump control.
Switching is controlled by an onboard microcontroller. On command from the Heat Pump, the Solar iBoost is disconnected providing a safety delay before switching over to the Heat Pump control.
To accommodate a number of different Heat Pump designs, the Heat Pump Interface can deal with a number of incoming signals/supplies:
- 230VAC 3kW supply
- 230VAC <3kW supply
- DC signal +5 to +24 VDC max
- Voltage free contact at Heat Pump
To allow operation with different signals from different input sources from an ASHP, a small ‘jumper’ connector is used to configure how the interface should operate
Three pins are fitted to the PCB, the jumper fits across two of the pins in either positions A or B as below or removed completely
Specifications
- Heat Pump Interface – Part number: CA-20/40
- Operating Voltage: 230V AC +/-10%
- Max Permissible Load: 13A Resistive
- Ambient Operating Temperature: 0 to 40°C
- Ingress Protection Rating: IP55
- Conforms to: EN 60335-1, EN 55014-1
- Dimensions: 160mm x 118.6mm x 60.5mm
In This Box:
- Solar iBoost Heat Pump Interface
- Wall fixing screws and plugs
- Blanking gland
- Installation Manual
Simple to install
- Full instructions are within the comprehesive installation manual.
- Refer to the Solar iBoost+ installation guide for further instructions regarding installation of the Solar iBoost+.
- Refer to the Heat Pump Manufacturers wiring diagrams to ascertain normal wiring instructions for immersion connections
- Wire the Solar iBoost and Heat Pump to the HPI as illustrated and then a single connection from the HPI to the immersion.
- Downloads are available below.