Replacing switchmaster programmer with Horstmann

philgood · 5 Nov 2009

Hi all !
Could I ask some assistance please..I have a fully pumped system using a Netaheat boiler, honeywell v4073 diverter valve...cylinder stat and room stat.

Im updating the controls from a standard rotary room stat with a switchmaster sm400 programmer to a horstmann centaur c17 programmer and stat 7 room stat..As the wiring seems different from old to new could anyone point me to the correct diagram please?

Thanks!

diynot

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

Replacing switchmaster programmer with Horstmann

philgood

DIYnot Local

Similar threads