- 18 Oct 2007
- Reaction score
This cylinder connection is the SAT(isfied) terminal. The wire from timer HW OFF should connect to this terminalYellow - Cylinder
Grey - Valve
(No timer wire connected with these)
The red terminal is the thermostat commonRed - Cylinder
Black - Timer Controller
The black is the timer HW ON terminal
Blue is cylinder stall CALL terminalBlue - Cylinder
Orange - Valve
Black - Boiler
Orange is valve CH on wire
Black is live to Boiler
Live is normally brown or red; blue is normally neutral. Are you sure the blue wires are live?The wiring diagram shows there should be a live from the Pump connected to the blue,orange,black above but there isn't. The blue live from the pump is connected separately with the blue live's from the boiler and time controller.
Some boilers have the pump connected directly to the boiler, so the boiler can control when it runs.
It sounds as if all you need is the connection from HW OFF to the cylinder yellow/valve grey. However, before you do this, please answer these questions.
Which make/model boiler do you have?
Which make/model timer do you have?