Despatch RBC1-50 with Protocol Plus - Manual (Page 31)

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The heater should be back on and the chamber should be functioning
correctly.
If the high-limit trips repeatedly, verify the cause of overtemperature and correct
problem. See the manufactures manual on the redundant high-limit instrument attached
to this manual.
Disconnect Switch
The disconnect switch is located on the upper front of the control panel, above the
controller. The OFF position is when the handle turned to the left, and ON is when it
turned to the right. To access the equipment behind the control panel, the disconnect
switch must be in the OFF position. This prevents access to the equipment panel while
power is on the oven.
Stacking Option
When ordered, this option lets the user to stack two ovens; one on top of the other using
specially designed stacking hardware. Using this option still requires that each oven
have its own power supplied to it