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Posted by HeatPro on September 22, 2007 at 09:44:35:
In Reply to: RA832A Honeywell Switching Relay posted by Rich on September 22, 2007 at 02:51:14:
: I have hotwater baseboard heat and it has 2 zones. I want to add a 3rd zone and need to know how to wire the RA832A Honeywell switching realy. Any help will be appreciated.
Begin with finding out what other controls by brand and number you have on the brand and model of boiler, such as ignition, circulator relays, high limit, etc, so you can know what wires connect to them. Go to the boiler manufacturer site and look up the fuel, make and model of the boiler to get their wiring diagram for the one you have. Then go to the Honeywell sites to get the wiring diagrams for each of the different controls in the system you have.
There is no single wiring diagram for every make, model, fuel, boiler and control, it is very variable among the 4 top control companies. Each installation is a custom design for your house with its zones.