Warning Notices On The Device - Fronius PVI1903OHM Operating Instructions Manual

For a heating element with 9 kW output, the surplus power of 0 - 3 kW is controlled in a
continuously variable manner in phase 1. If even more power is available, the Ohmpilot
also activates phase 2 and phase 1 can again control the surplus in a continuously varia-
ble manner between 3 – 6 kW. If the available power is higher than 6 kW, the Ohmpilot
also activates phase 3 and phase 1 can again control the surplus in a continuously varia-
ble manner between 6 and 9 kW.
Power range
0 - 3 kW
3 - 6 kW
6 - 9 kW
Other resistive loads such as infrared heaters, towel dryers, etc. can also be controlled.
Danger from connecting an incorrect load (e.g. fan heater).
The result is destruction of the load.
▶
Danger from connecting an electronic thermostat.
The result is destruction of the Ohmpilot or load.
▶
IMPORTANT! If the water is hard, the heating element may become calcified, especially
if the minimum temperature is set above 60 °C. We recommend an annual inspection. To
do this, remove the heating element from the storage system and remove the limescale.
Do not scratch the surface of the heating element (formation of corrosion).
Warning notices Warning notices and safety symbols are affixed to the left side of the Ohmpilot. These
on the device warning notices and safety symbols must not be removed or painted over. They warn
against incorrect operation, as this may result in serious injury and damage.
72
Phase 1
0 - 3 kW conti-
nuously variable
0 - 3 kW conti-
nuously variable
0 - 3 kW conti-
nuously variable
CAUTION!
Connect only purely resistive loads.
CAUTION!
Use mechanical temperature sensors.
Phase 2 Phase 3
- -
3 kW fixed -
3 kW fixed 3 kW fixed