Harvia Sentiotec Pro D2W Mode D'emploi page 33

Installation instructions, for professionals only
f. Switch on the sauna control unit.
► A recurring warning tone sounds, "4F1" appears in the display.
► The control unit switches off the heater.
g. Switch off the sauna control unit.
h. Reconnect the white wire for the heater sensor.
3. Check the phase circuit for sauna mode L1, L2, L3 is connected to U, V, W.
4. Only Pro D3/Pro D3i: Check the phase circuit for evaporator mode L1, L2,
L3 is connected to U, V1, W.
5. Only Pro D3/Pro D3i Ensure the phase circuit for L3 is connected to W1
when the device connected to the additional output is activated.
6. Check the maximum permissible heating output of 3.5 kW per phase on the
sauna control unit.
7. If there is an optional power booster:
a. Check the control leads ST1, ST2 and ST3.
b. Check the maximum permissible heating output of 3 kW per phase on
the power booster S2-18.
c. Check the maximum permissible heating output of 7 kW per phase on
the power booster S2-30.
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EN