I recently replaced 4 Honeywell Zone valves with 4 Flow Control valves to allow me to use a Taco -SR506 Priority Zone controller. The Taco replaced 4 Furnas contactors that would send the signal to the zone valves and energize the zone circulator pumps. The Taco is working properly as my DHW indirect is prioritized and not allow the zone circulator pumps to run when the room thermostats are calling for heat. The system previously allowed the pumps to run even as the indirect was calling for hot water from the boiler. The boiler uses a internal circulator to feed water to the Indirect. The internal circulator also runs whenever a baseboard zones calls for heat. The system is piped with 4 Circulator pumps each being controlled by 4 thermostats.
What I'm feeling is the water is flowing through all the zones even as the respective circulator pump is not energized. The piping coming from the boiler is a 1" riser to the ceiling and nineties, supplying the individual zones There is a 1" riser returning in parallel to the boiler. How do I prevent the flow reaching the zones that is not calling?
What I'm feeling is the water is flowing through all the zones even as the respective circulator pump is not energized. The piping coming from the boiler is a 1" riser to the ceiling and nineties, supplying the individual zones There is a 1" riser returning in parallel to the boiler. How do I prevent the flow reaching the zones that is not calling?
