New programmer

[jontrak]

Hi all,

I have a Concord WRS boiler (very old, prob over 30 yrs) and a Switchmaster 805 timer/programmer. Can anyone tell me if my boiler is compatible with some of the more modern programmers like, Honeywell, Salus, Horstmann and so on. If it is, is it a simple job to do?

Thanks in advance.

Rob

 

[MANDATE]

The link below shows the connections for various honeywell programmers when replacing a switchmaster 805.

http://www.honeywelluk.com/lib/pdf/Wiring-Guide-Issue-14.pdf