Hi,
I have an existing (ACL Drayton) Room Thermostat RTS-1 and would like to know if it is at all possible to replace it with a Horstmann HRT4-B without requiring additional wiring?
If it is possible what are the wiring terminal connections I need to make?
Grateful thanks in advance
View media item 48942
Existing RTS1 wiring: N=Blue, L=Red, 3=Yellow, Earth connected to metal wall box.
View media item 48941
I have an existing (ACL Drayton) Room Thermostat RTS-1 and would like to know if it is at all possible to replace it with a Horstmann HRT4-B without requiring additional wiring?
If it is possible what are the wiring terminal connections I need to make?
Grateful thanks in advance
View media item 48942
Existing RTS1 wiring: N=Blue, L=Red, 3=Yellow, Earth connected to metal wall box.
View media item 48941