Optional Settings
IMPORTANT! The settings described here can be implemented for all of the application
examples detailed above. If they are not described for the relevant example, they are not
vital.
Manual
You can also set the power of HEATER 1 manually.
Settings
1. To do this, select the "manual" field.
HEATER 1
2. Select whether it is a 1-phase or 3-phase load.
3. Enter the power of the load in Watts.
Activating
When the legionella prevention system is activated, the hot water is heated to 60 °C at a
Legionella
set interval.
Prevention
1. Highlight the field "Temperature sensor present"
2. Highlight the field "Legionella prevention (h)"
3. Enter the cycle for the legionella prevention.
NOTE! In the case of applications with a 1-phase and a 3-phase heating
element, it is not possible for the Ohmpilot to measure heating element 1
automatically due to the cabling. In this case, the configuration must be carried
out manually.
NOTE! If the boiler is operated at a temperature <60 °C for a relatively long
period of time and no hygienic storage tank is being used, measures must be
taken to kill the legionella bacteria. For private use, it is recommended to im-
plement legionella prevention at least once a week (168 hours). In the case of
a large hot water storage tank and/or a comparatively low consumption of hot
water, legionella prevention should be carried out regularly. A PT1000 tempera-
ture sensor is required for this function and can be sourced from Fronius under
item number 43,0001,1188.
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