4. Electrical Power Supply
PNEG-634 2000 Top Dry Fan/Heater 35
Rotary Switch and Horn Wiring
A drying chamber overflow rotary switch and a storage chamber high level rotary switch can be used
to let the operator know when the drying chamber or the storage chamber is full. Figure 4I details one
possible way of wiring both the drying chamber and the storage chamber rotary switches so that the horn
will sound when either the drying chamber or the storage chamber is full. To wire the rotary switches and
the horn do the following:
1. Run two (2) wires between an ON/OFF switch and the storage chamber rotary switch.
2. Run three (3) wires between the storage chamber rotary switch and the drying chamber
rotary switch.
3. Run two (2) wires between the drying chamber switch and the horn.
4. Connect the wires as shown in Figure 4I.
Figure 4I Wiring for the Rotary Switches and Horn
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