Ambirad TORNADO Installation And Operating Manual - Page 11

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To replace the electronic sequence controller,
transformer, thermostat and pressure switch.
Access to these components is via the hinged lid.
Remove the lid securing screws.
Components can be seen behind the hinged lid.
Replace as required ensuring connections are
made in the same order as on removal.
To replace (or reset) the thermal cut out
switch.
Place the product on the rear ring in the vertical
position to gain access to the fan cover.
Remove the fan access cover.
The thermal cut out is located on the inside back
wall and can be changed by removing the two self
tapping screws.
To reset a failed thermal cut out, press the small
button located in the centre of the product.
Vacuum Pressure Switch connections
2
2
3
Negative pressure
1
Positive pressure
3
P
1