IVT 490 framledningstemperatur låg
I have a IVT 490 for a 200sqm house. yesterday evening I noticed no heating coming out from the elements. Checked display panel, No error message, The pressure is OK, warm water is also OK.
"VärmeKuvar" value set at 4.3, the GT value reading like this
GT1 21 (34 )
GT2 3.8
GT3:1 54
GT3:2 54
So the GT1 "framledningstemperatur" value is too low. This morning, I tried to manually adjust the "Shunter" to middle of the range, the heating come out from elements immediately. the GT1 value become over 45 Then it drops gradually. I leave like this until back home in the evening. no heating from the elements again, GT1 become 24(17), Strange that the target value is so low! GT3 also drops to be around 20, although the actual warm water is normal, no problem for shower. I guess this is normal for "manually adjust the shunter"? but why?
Now I put the "Shunter" back to automatic status, and the target values are gradually increasing, and the boiler keep running. I guess, in the end, it will be back to similar value as yesterday. I would like to ask what could be the reason for so low "framledningstemperatur) ? how it may be fixed?
The only problem I can see from the system is that it leaks some drops of water. But this happened before with much more water drops without any problem.
"VärmeKuvar" value set at 4.3, the GT value reading like this
GT1 21 (34 )
GT2 3.8
GT3:1 54
GT3:2 54
So the GT1 "framledningstemperatur" value is too low. This morning, I tried to manually adjust the "Shunter" to middle of the range, the heating come out from elements immediately. the GT1 value become over 45 Then it drops gradually. I leave like this until back home in the evening. no heating from the elements again, GT1 become 24(17), Strange that the target value is so low! GT3 also drops to be around 20, although the actual warm water is normal, no problem for shower. I guess this is normal for "manually adjust the shunter"? but why?
Now I put the "Shunter" back to automatic status, and the target values are gradually increasing, and the boiler keep running. I guess, in the end, it will be back to similar value as yesterday. I would like to ask what could be the reason for so low "framledningstemperatur) ? how it may be fixed?
The only problem I can see from the system is that it leaks some drops of water. But this happened before with much more water drops without any problem.