Discuss Heating control in the Industrial Electrician Talk area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

Reaction score
7
I need to wire two timers to control the one gas burner.
One timer is for underfloor heating the other for hot water/rads

Problem is if I run the timers switchwire both back to the one Live terminal on the burner the live will backfeed throught the other and turn on the other device that the other timer is controling..Is this correct :confused:
I was thinking if i was to wire each timer back to a seperate contactor first that when one timer kicks in it will pull in the contactor and send power to the burner without activating the other timeclock.Then if I wanted the other timer could also turn on at any time regardless of the state of the other timer

Does this make sense?
 
Try a 2 zone timer (2 CH zones 1 DHW) Contactors are an added expense and are something else that you need to hide or look pretty, or have all the heating on at the same time but have a programmable room stat for the ufh to turn off the actuators on the manifold. Hope this helps
 
Try a 2 zone timer (2 CH zones 1 DHW) Contactors are an added expense and are something else that you need to hide or look pretty, or have all the heating on at the same time but have a programmable room stat for the ufh to turn off the actuators on the manifold. Hope this helps

Can't have two zone timer as the customer wants the timeclocks in different locations :mad:
Can't have all heating on at same time either as I have to wire the hot water and rads seperate but I was going to use a two zone timeclock for this,Plus I also have a seperate stat for the rads to the ufh
 
There has to be an easier way round this. we have in the past fitted polyplumb multi zone RF controllers for under floor heating systems, try their website. Best of luck!
 
If under-floor heating and rads are both supplied by hot water from a gas boiler, install as `S` plan. i.e. motorised valves - one on the rad feed, one on the u/f feed both controlled from time clocks and t/stats.
 
Last edited by a moderator:
If under-floor heating and rads are both supplied by hot water from a gas boiler, install as `S` plan. i.e. motorised valves - one on the rad feed, one on the u/f feed both controlled from time clocks and t/stats.


Good idea that is, but dont forget to control MZVs from your stats (feed to stats from timer switch wire & switchwire from stats to operate MZV motor),then(switchwire from timer onto each MZV switch terminal and switchwire to boiler is taken from the other side of the MZV switches), if you can understand that your better than me !. (good luck)
 
The plumber should be installing zone valves to each circuit ie underfloor,hot water and rads the valves have contacts on them to enable you to have time and temperature controls for each circuit but still using one boiler.
 

Reply to Heating control in the Industrial Electrician Talk area at ElectriciansForums.net

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock