My Drayton Digistat SCR has failed and I have bought a Horstmann RF Programmable Room Thermostat to replace it but the wiring to control the boiler is a little confusing.
The Drayton wiring uses four connections
Live and Neutral, and C- connection 1 on the SCR unit (presume that stands for 'common'?... and Call - connection 3 on the SCR unit.
The boiler is a Gloworm Flexicom 30 CX.
Where do I connect the two wires used by 'C' and 'Call' when wiring the Hostmann unit? and do I need to remove the 'Live' link on the unit (for volt free applications)
Thanks for helping..
The Drayton wiring uses four connections
Live and Neutral, and C- connection 1 on the SCR unit (presume that stands for 'common'?... and Call - connection 3 on the SCR unit.
The boiler is a Gloworm Flexicom 30 CX.
Where do I connect the two wires used by 'C' and 'Call' when wiring the Hostmann unit? and do I need to remove the 'Live' link on the unit (for volt free applications)
Thanks for helping..