Control Of Cooling Fan - Rational SelfCookingCenter SCC Training Manual

Control of cooling fan

The DC (supply air) cooling fan runs when a cooking mode is selected and the unit is heating or the unit is too
warm.
Additional 230V cooling fans distribute the cooling air in the electrical cabinet of 201 / 202 and cool the SSRs.
In case the cooling fan is not working efficiently, the message „Change air filter" will be shown.
Check air filter.
If this is neglected, „Service 29" will be shown later on the display and the unit will not heat
anymore. Check power supply for cooling fan, cooling fan and temperature sensor position.
Function test cooling fan: The cooling fan is always running when a cooking mode is selected.
The supply air cooling fan for units 61 - 102 behind the control panel is
controlled by a converter 230V AC - 24V DC.
The cooling air is discharged through the bottom of the unit around
the hand shower.
To remove the cooling fan lift it above the small retaining hub on the
fan housing.
The supply air cooling fan 201-202 on the rear left back panel is con-
trolled by a transformer pri. 230V AC, sek. 12V DC.
The air filter can only be changed after dislodging the protection cover
and sliding it to the right side.
The cooling air is discharged through the top left side of the rear panel.
Both supply air cooling fans are equipped with a temperature sensor
(NTC). This sensor measures the temperature at the position of the
clima valve Y5. The speed of the cooling fan increases with increasing
temperature.
This sensor is part of the cooling fan and can not be changed sepa-
rately.
The air filter under the control panel can be replaced by simply unlock-
ing it from the base frame.
It can be washed in warm soap water. Do not clean in dish washer as
this is too hot.!
- 57 - V08 en, SCC