programmer

[newguy]

hello. is it possible to use a dual programmer ie hw,ch with a combi or must programmer be single use ch only? bought wrong programmer as was day dreaming !!!cheers

 

[simond]

depends which make of programmer, can't tell from here........

 

[boozercruiser]

hello. is it possible to use a dual programmer ie hw,ch with a combi or must programmer be single use ch only? bought wrong programmer as was day dreaming !!!cheers

With my recently installed Worcester 18/25 Combi I was supplied with a Honeywell ST900A 2 Channel Programmer for Hot Water and Central Heating. (Google it ).

This is used in conjunction with a Honeywell T 6360.

I hope that this helps you.

 

[simond]

Do you mean a Honeywell ST9000C?

This would not be compatible with most combi boilers. The Heatslave is a different animal.

 

[boozercruiser]

Simond. No, I have it here, and it is a.............................................

Honeywell ST9400 A 1 Day. 2 Channel Programmer.

 

[Agile]

Newguy.

You only need one channel to control CH.

You can still just use one channel for Ch on your two channel programmer.

Tony

 

[simond]

It depends whether the combi heating contacts are mains switching or low voltage.

If you connect a Drayton to the latter you could destroy the combi PCB.


PS: The ST9000 is the 1 day version of the ST9400C, which is 7 days. Otherwise its the same, we only specify the 7 day version so I was not familiar with the number. Sorry about the confusion. My comments above regarding the boiler application also refer to the ST9000 series.