UH-Control Based on KC868-A6 PCB

Pin-config:

• P0, INPUT -> ThemoState Signal room thermostat

• P1, INPUT -> Defrost Signal heatpump

• P2, INPUT -> Alarm Signal heatpump

• P3, OUTPUT -> Heat Pump request

• P4, OUTPUT -> Boiler/external heatsource request

• P5, OUTPUT -> Water Pump ON/OFF

• ds1 -> OUTSIDE TEMP

• ds2-> Water TEMP

Things to do:

• input flowswitch to protect plate exchanger
• opentherm connection for room thermostate and boiler