Ämne: iVT Greenline 11E6

[alon]

Hi

i have an old (1997) ivt greenline 11e6 with a sparate water tank vb300fr
 mybe someone can tell me if it o.k that evrey time at the end of drift proces its go to varmvatten for4-7 min
i put a camera to watch it and even at nigth  when nobudy use hot water its finishing the proces with vv for few min
thanks
ahlon

[Lexus]

yes, the old ivt always finished with hot water

[halper]

Yeah, the “old ones” seem to always conclude a “radiator” run with DHW if the temperature is below the “stop temp”. Makes sense since the compressor is running anyway.

Lexus, how do the new ones behave?

Because of heat losses, the hot water will cool off (and heat up the surroundings) even when no water is used. At “steady state” we seem to have one DHW run every 4–6 hours in summer when no radiator heat is required. Now, there are few to none separate DHW runs so they always happen at the tail end of the radiator run.

[Lexus]

Lexus, how do the new ones behave?

Heat pumps with Rego 600 terminate with a hot water charge if the actual value is below the setpoint.

Heat pumps with Rego 1000 regulate similar ..... I suppose. 

[alon]

thanks a lot
so u say that its o.k that evrey time that drift on its go to vv at the end of the proces
(the varmvatten 40/45/50 that i can adjust inside the pump its for the sensor to tel the pump when to start ? if its set to 45 its meen that under 45 the pump start for varmvatten ? )

I thought it was because of the vaxelventil and I already ordered a replacement cartridge vczz6000 because I also saw that I was taking out the vaxelventil motor  and there was a drop of water on the spring.
Maybe someone here can explain to me how I change the cartridge. I understand that I have to empty all the water and only then I can replace it .
  I have a few valves that I can close in order not to empty all the water in the radiators and under  floor heating
Is it the right thing to do or is there a way to change  without emptying?

i attaced some pic
 thanks again
ahlon

[alon]

yes, the old ivt always finished with hot water

thanks a lot
so u say that its o.k that evrey time that drift on its go to vv at the end of the proces
(the varmvatten 40/45/50 that i can adjust inside the pump its for the sensor to tel the pump when to start ? if its set to 45 its meen that under 45 the pump start for varmvatten ? )

I thought it was because of the vaxelventil and I already ordered a replacement cartridge vczz6000 because I also saw that I was taking out the vaxelventil motor  and there was a drop of water on the spring.
Maybe someone here can explain to me how I change the cartridge. I understand that I have to empty all the water and only then I can replace it .
  I have a few valves that I can close in order not to empty all the water in the radiators and under  floor heating
Is it the right thing to do or is there a way to change  without emptying?

i attaced some pic
 thanks again
ahlon