Previous model. This guide was written for the Shelly 1PM, which has been replaced by the Shelly 1PM Gen4. The wiring is the same, and the settings are in the same places in the Shelly Smart Control app. Go to the Shelly 1PM Gen4 →
Wiring diagram
Legend
- Setup:
- Water heater control settings: in the app, tap the device you want to configure > Settings > Settings:
- All done 🙂
Settings in the app
1
Mode: choose Relay.
2
Power On Default Mode: choose Restore Last Mode.
3
Device Type: choose Water Heater or the matching load type.
4
Button Type:
- With a standard toggle switch: choose Edge Switch.
- With a push button (spring-return switch): choose Momentary.
How to choose "Edge" in the new app, with screenshots: The full guide →