I have a Valiant EcoTec Plus 824 R1 combi boiler, attached to a Uponor underfloor heating system.
There are 4 circuits, each 75m, 2 per thermostat.
The thermostats seem to control the actuators fine, and i can close off onc circuit by turning down one stat.
The boiler generates hot water down the CH flow pipe and i can feel the heat being distrubuted through the manifold to the active circuits under the floor.
However, the rooms never seem to heat up and the CH return pipe remains cold.
The boiler shows the pump running symbol, but enters into ani cycling mode regularly.
The flow guages on the manifold never move.
A plumber had a 10 min look and has told me that its installed wrong and the the pump in the combi boiler has no chance of pushing the water around the system. They told me that I would need to add a seperate pump and valve onto the manifold and that I'm looking at a bill of over £2k to get it done.
Is this true, or should the boiler be able to power the underfloor heating? Why would the return remain cold and the flor guages stay at 0?
Thanks
Jon
There are 4 circuits, each 75m, 2 per thermostat.
The thermostats seem to control the actuators fine, and i can close off onc circuit by turning down one stat.
The boiler generates hot water down the CH flow pipe and i can feel the heat being distrubuted through the manifold to the active circuits under the floor.
However, the rooms never seem to heat up and the CH return pipe remains cold.
The boiler shows the pump running symbol, but enters into ani cycling mode regularly.
The flow guages on the manifold never move.
A plumber had a 10 min look and has told me that its installed wrong and the the pump in the combi boiler has no chance of pushing the water around the system. They told me that I would need to add a seperate pump and valve onto the manifold and that I'm looking at a bill of over £2k to get it done.
Is this true, or should the boiler be able to power the underfloor heating? Why would the return remain cold and the flor guages stay at 0?
Thanks
Jon