The HR 40 is an electronic radiator controller with a series of convenient functions. You can set your own times and choose from 2 different setpoint temperatures to set up your own heating programme for each day of the week.
This manual provides the installation steps and operating instructions for the Honeywell HR 40 electronic radiator controller. It covers the scope of delivery, wiring, valve lantern fitting, and how to attach the operating unit.
The document also explains how to set temperature set‑points, program weekly and daily heating schedules, replace batteries, and use safety functions such as valve protection and child‑proofing. Disposal and recycling information is included at the end.