S PLAN DIAGRAM ... confusing and wrongly drawn?

Just connect it as I said.

The stat switches with temperature, cold = close circuit, hot = open circuit.
 
Sponsored Links
How can the programmer power (HW on) make the switch SUCK back to the 1 terminal of the cylinder stat?!!
Your use of suck makes me think you are confused as to how the switch is operated. It is mechanical switch which is closed by a cam on the motor shaft. When power is applied to the brown wire from the thermostat, the motor runs, turning the shaft and the cam on the shaft closes the switch, connecting terminal C to terminal 1. It does not matter which wire is connected to which terminal - the important thing is to use the C and 1 terminals.
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Back
Top