This guide is aimed at those heat pump monitoring systems installed as part of the BEIS Electrification of Heat Trial, where a Passiv Monitoring data logger was installed as part of the monitoring bundle. The guide will explain how to swap the Passiv monitoring over to the Open Energy Monitor package.
Here is the guide:
Heat Pump Monitoring switch BEIS EoH to OEM.pdf (635.1 KB)
The changes needed involve mains wiring. If you are not absolutely certain that you are competent to do this, you should enlist the help of a qualified tradesperson.