Boiler Zone Valve Wiring Diagram. Upmi installation manual. The engineers use their expertise to.
115 combi wiring diagram rev. White black r 110 v power source 24 v thermostat pn 8200008 rc y b o rh g w zone valve unit bypass main back to outdoor furnace c w r c note thermostats must be installed by qualied technician. Ucs 240 high efficiency condensing hot water boiler.
The heating system could also be a boiler however is it necessary to ensure with split systems and the.
An automatic bypass valve is fitted inside most combi boilers by the manufacturer these days no wonder lazy heating engineers push the combi boiler heating. White black r 110 v power source 24 v thermostat pn 8200008 rc y b o rh g w zone valve unit bypass main back to outdoor furnace c w r c note thermostats must be installed by qualied technician. Activate a gas valve from a zone controller. Thermostat wiring is a useful skill to know if you have to replace an old thermostat or just check if something is wrong with the new thermostat.