replacement for honeywell controller st9400c

robbie77 · 24 Aug 2010

Hello,
I have an s plan system with zone valves for upstairs and downstairs controlled by 2 honeywell t6360. I had a st9400c but forgot to fuse down the switch from 13 a to 5 amp so have paid the price and fried it. I'm looking for a replacment, maybe a three chanel or similar, was thinking of trying a horstman or shall I just replace it?

Can someone recommend a replacement for the three zones I have?

Thanks in advance.......

robbie77 · 25 Aug 2010

I was looking at something like the HORSTMANN H37XL 3 CHANNEL programmer, it's twice as much though although I think it would allow me to control all the zones at separate times rather than by just using the thermostat for the upstairs zone. Does that sound right?
Previously I had downstairs and hotwater circuits coming on and off at different times the upstairs zone was just dependant on the thermostat setting.

Is it worth getting a 3 channel?

DP · 25 Aug 2010

I would fit two programmable roomstats (my favourite is Danfoss TP5000) and then fit a single channel programmer to control HW.

bengasman · 25 Aug 2010

Horstman is total crap.
Just stick the new version of the 9400 in. Makes sure you get one that is totally independent, whatever you choose.

robbie77 · 1 Sep 2010

In the absence of a controller and in the interim period I have just wired the boiler and the pump to the switched spur to turn the heating on and off.

This should be OK for a fully pumped worcester bosch greenstar oil burning condensing boiler ? I'm not going to do any damage?
I'm assuming that all the controller does is do this automaticaly?

Thanks

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replacement for honeywell controller st9400c

robbie77

robbie77

DP

bengasman

robbie77

DIYnot Local

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