the doctor
Part P Doctor ™
- Joined
- Mar 1, 2008
- Messages
- 580
- Reaction score
- 1
hi all,
i am an electrician of many years experience and have done teaching for quite a while also.
I know most things electrical but have one lil' problem.Blushing
I can wire and understand S plans and the like with two port valves. However I just wire Y plans as a wire by numbers exercise. Can someone in forumland give me a lay explination covering.
The reasoning for three cores to the tank stat (heat call and heat satisfied)
The reasoning for the heating off output needed at the programmer
Where does the valve default to when everything is off.
How does it stall at the mid position
What the exact functions of putting supplies to various colours at the valve
I have looked at many diagrams and sort of know it but do not truly understand it in my heart- if you know what i mean Blushing
Thanking you in anticipation
Alan
i am an electrician of many years experience and have done teaching for quite a while also.
I know most things electrical but have one lil' problem.Blushing
I can wire and understand S plans and the like with two port valves. However I just wire Y plans as a wire by numbers exercise. Can someone in forumland give me a lay explination covering.
The reasoning for three cores to the tank stat (heat call and heat satisfied)
The reasoning for the heating off output needed at the programmer
Where does the valve default to when everything is off.
How does it stall at the mid position
What the exact functions of putting supplies to various colours at the valve
I have looked at many diagrams and sort of know it but do not truly understand it in my heart- if you know what i mean Blushing
Thanking you in anticipation
Alan