KT-Elektronik SOL3-3, Installation And Owner'S Manual, Page: 49 / 88

KT-Elektronik SOL3-3
6 Domestic water circuit functions
6.1 Domestic water heating in storage tank
The domestic water circuit allows setting the desired temperature the water should be
heated up to by means of auxiliary heating.
Setting FS Parameter level / Value range
Set-point domestic water
Daytime Operation
45 °C PA4 / 5 to 90 °C
Set-point domestic water
Night-time operation
10 °C PA4 / 5 to 90 °C
Differential gap 5 K PA4 / 0 to 30 K
6.2 Thermal Disinfection of the
storage tank
A usage schedule is used in systems with domestic water heating to perform a thermal
disinfection in order to reduce the Legionella risk. The storage tank with storage sensor
SF1 is heated up to defined the Disinfection temperature. The process begins at the
programmed time Start time and ends not later than the programmed Stop time.
In systems with solar domestic water heating, thermal disinfection is performed outside
scheduled time ranges depending on the solar gain. The controller monitors the storage
temperatures and disinfection intervals in order to reduce the consumption of additional
energy (auxiliary heating).
Too high temperatures due to thermal disinfection may cause limescale that can
negatively affect the performance of the heat exchanger.
Function FS Description
Thermal disinfection
Day of week
Start time
Stop time
Disinfection temperature
0
1
00:00
00:00
70 °C CO4 -> F14- 1 - Thermal disinfection
Actuation day(-s) / 1...7 or 1-7 (1..Monday,...)
Beginning of thermal disinfection
End of thermal disinfection
Min. storage temperature for thermal disinfection /
50 to 90 °C
EB_37383_SOL3-3_EN002
49