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I have a client with radiant floor heat, boiler, etc. They complain that the boiler and pump seem to go on and off constantly. Very annoying. Is there something in the controls that can remedy this problem.
thanks
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I have a client with radiant floor heat, boiler, etc. They complain that the boiler and pump seem to go on and off constantly. Very annoying. Is there something in the controls that can remedy this problem.
thanks
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Replies
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Charlie,
You would have to provide some idea of what controls are there.
How is the system controlled? Where are the thermostats located? Is there an outdoor air temp boiler temp control?
One of the best ways to set up a hydronic heating system is with a primary loop and circ pump, running continuously and secondary loops contolled thermostatically with either small circ pumps or solenoid valves for each zone or loop.
*Charlie,Check the anticipator setting on the wall thermostat. It usually is a small lever over a cicular piece of circuit board with arrows indicating "longer" and "shorter" which refers to the length of run time when heat is called for and the point of thermostat diconnect.If the anticipator is set to short then the system is too sensitive and constantly turns on and off--- "short cycling", which is driving your customer crazy.Give it a shot..................Iron Helix
*IronThis wasn't my post but I've had the same problem for 6 years. I installed my own system with drawings provided by a heating engineer. It short cycled since the day I turned it on. I've talked to at least 5 professionals about it and had 2 look at my system. They both said it was perfect. They don't have to live with the constant off and on. Your solution worked. I'm buying drinks for everyone. Thanks Iron thanks, thanks, thanks.Terry
*Folks,I have a related question. I'm installing radiant in my addition. My question is how much space should I leave between the tubes and the insulation? Should I pack the insulation up tight or leave a 2 inch gap? Thanks in advance!Roger
*Roger: Wirsbro or whoever made the tubing will have installation instructions for many different applications. Briefly, if you have clip-on aluminium heat fins, I'd fit it tight to the tubing and fins. If you are planning to run hotter water through tubing only, I'd leave a gap so the air can convect heat to a wider area of subfloor. -David
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I have a client with radiant floor heat, boiler, etc. They complain that the boiler and pump seem to go on and off constantly. Very annoying. Is there something in the controls that can remedy this problem.
thanks