Dear friend,
We have a device type IVT E11-6 and external boiler borö 300 liter
last year We have change in the device the kompresor and also the växel ventil
I have placed on it many external thermometers and a camera so I can monitor the device work .
I have noticed that especially during the day and the evening when using hot water (mainly showers), after a while the temperature drops below the heating starting point and therefore the compressor start working and heat the water until the end point.
Afterwards, the water temperature in the water tank drops again very fast (between 15 min to 1 hour) to the heating starting point. That happens also when you don’t use hot water.
What is strange is that during the night the water tank do keep the temperature of the water .
sometimes over the entire night and even until noon
at night its eveven skips few cycles of boiler heating after action of radiator heating as the temperature is high enough.
do u thinks any other reason except växel ventil and if its is the växel ventil why at night its is o.k ?
( mybe that at nigth the system produce hot water for the radiators and the water in the retern pipe is hot and during the day its not??)
pls
thanks
alon