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Can I use an in situ 3-port valve as a 2-port valve where port B (hot water) is blanked off? I assume that if I simply combine the grey and white wires from the actuator to receive 230V from the CH thermostat, when the CH thermostat calls for heating, the 3-port valve opens to allow water to circulate to port A (only) and the orange wire becomes live to actuate the boiler. So the 3-port valve/actuator is acting in the manner of a 2 port valve/actuator. (I know that the more obvious thing to do is to replace the 3-port valve but it's in a very awkward location.)
Note that in the system, there is one other CH zones which is controlled by one 2-port valve/actuator. Thus, would there be any electrical conflict or running difficulties in directly electrically combining the orange wires from both valves at the boiler/pump given that there are internal switches/diodes in the 3-port actuator?
Thanks.
Note that in the system, there is one other CH zones which is controlled by one 2-port valve/actuator. Thus, would there be any electrical conflict or running difficulties in directly electrically combining the orange wires from both valves at the boiler/pump given that there are internal switches/diodes in the 3-port actuator?
Thanks.