Anybody seen this type of heating controller

[oldtimer]

Hi all has anybody or can tell me where to get an replacement unit basically it is a 2 timeclocks controlling 2 30 amp control relays with a time-off-constant switch for each clock I think the name on the fron is Altair would appreciate any advice please

 

[robsparky1975]

What is it controlling?

 

[oldtimer]

What is it controlling?

wall convector heaters

 

[Cyberprog]

I'll take a punt and suggest that it's probably obselete. You could just replace it with a pair of clocks of course, it won't be much more complicated than a relay system.

 

[Knobhead]

Ye gods!

That should be in the science museum, not seen one of them for twenty years or more. Just replace the clocks with a modern timer / timers, there will be a delay between the clocks switching on so all load doesn’t hit the supply in one go. You’ll have to retain the relays, or better still replace them, they must be on their last legs.