I'm planning phase 2 of heating control to introduce per room zoning upstairs, currently its based on average temp of all upstairs rooms.
I'd like the 24V suppliy to only be activated when there is demand, so connecting that to the switched boiler supply seems right.
However I don't control my boiler directly with an Idratek relay - the Idratek zone valves call for heat, which triggers the physical motorized zone valves and the switched boiler supply is provided via switch on the zone valve output (orange wires IIRC). All 3 zone valve switch outputs are I think commoned.
I currently do have a Idratek relay configured in the logic as the boiler, but it isn't actually connected to anything - I think I needed to do this to keep Cortex happy that there was a boiler for the HVAC object to control
So should the boiler relay fit between the commoned outputs of the zone valve switches and the boiler, or be a switch of a fresh supply (on the same heating circuit of course)??
Do I need a boiler relay at all and just use the existing set-up where the zone valves provide control of the boiler. Does that limit the control options for minimum loading of the boiler or more advanced hot water control (currently just a timer)??
If I don't need a boiler relay, can I create an logical boiler rather than assigning a dummy relay?
Thanks
JonS
I'd like the 24V suppliy to only be activated when there is demand, so connecting that to the switched boiler supply seems right.
However I don't control my boiler directly with an Idratek relay - the Idratek zone valves call for heat, which triggers the physical motorized zone valves and the switched boiler supply is provided via switch on the zone valve output (orange wires IIRC). All 3 zone valve switch outputs are I think commoned.
I currently do have a Idratek relay configured in the logic as the boiler, but it isn't actually connected to anything - I think I needed to do this to keep Cortex happy that there was a boiler for the HVAC object to control
So should the boiler relay fit between the commoned outputs of the zone valve switches and the boiler, or be a switch of a fresh supply (on the same heating circuit of course)??
Do I need a boiler relay at all and just use the existing set-up where the zone valves provide control of the boiler. Does that limit the control options for minimum loading of the boiler or more advanced hot water control (currently just a timer)??
If I don't need a boiler relay, can I create an logical boiler rather than assigning a dummy relay?
Thanks
JonS
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