fitting two way valve on gravity fed system

[ibennett67]

hi all having to fit hot water cylinder thermostat to my heating system was hoping someone could gives us a bit of help on how to wire in the two way valve that needs to go in / my system is gravity fed and the boiler is a old ideal standard with a HORSTMANN 425 TIARA PROGRAMMER fitted so how do i go about it cheers

 

[gaswizzard]

Interlock screws will be in the back of programmer (full control) , or are you asking how to wire a C plan? , motor valve should have an auxilary switch (white wire).

Valve should be fitted so as not to interupt cold feed ex/OV path.

 

[mikely]

Like this: http://www.honeywelluk.com/Documents/All/pdf/936.pdf

 

[45yearsagasman]

I hope you know what position in the gravity circuit that valve is supposed to go.

 

[ibennett67]

Like this: http://www.honeywelluk.com/Documents/All/pdf/936.pdf[/QUOTE]

hi mikely thanxs for the link so would be right to say that the valve is on cold feed then the cylinder thermostat is wired to two way valve then on to the timer if so where would you make your connection inside the timer oh by the way the c/heating is on room stat cheers

 

[ibennett67]

Interlock screws will be in the back of programmer (full control) , or are you asking how to wire a C plan? , motor valve should have an auxilary switch (white wire).

Valve should be fitted so as not to interupt cold feed ex/OV path.

thanxs gaswizzard would be the c plan been fitted was confused where to make the joint on cold feed close to boiler or cylinder and where the wire from two way valve is to be fitted is it the timer programmer or somewhere else cheers

 

[ibennett67]

Like this: http://www.honeywelluk.com/Documents/All/pdf/936.pdf[/QUOTE]

hi mikely would like to thank yer again for link was really helpful fitted valve and stat over weekend all working fine too cheers mate