R
For DHW control a separate time clock was needed.
davidoco
could you pm me where I could get these controllers as you have described
Hi rahman, this is what the delay switch is supposed to help with. I think the idea is that when a room calls for heat the UFH controller (Heatmiser UH1) opens the actuator, activates the boiler (and a motorised valve) but the boiler activation goes via buffer tank stat and finally the delay switch. My heating contractor explained the settings to me recently... The delay switch is to be set to 20 minutes and buffer tank stat to 65 degrees. The delay switch means that the boiler will come on 20 minutes after the UFH calls for heat. In the meantime the UFH system will draw the water (which will probably be at 65) and use it, cooling it down as heat goes into floor. Then after 20 minutes the boiler kicks in and starts to heat buffer tank back up to 65 while at same time the UFH system draws water.yes the buffer tank has a DHW coil in it which heats the water as it passes through the buffer. I will then connect the 2 UFH cicrcuits directly to the buffer. Basically I want a controller that will allow me to control the 2 UFH circuits and not allow the boiler to come on every time a room stat calls for heat.
davidoco
could you pm me where I could get these controllers as you have described
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