Middleby Marshall PS629E Series, Owner'S Operating And Installation Manual

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SECTION 3
OPERATION
24
D. Temperature Controller
The temperature controller is a solid-state, PID type to
maintain the temperature set point. The temperature
controller continuously monitors the oven temperature
and turns on the modulating solid-state relay
controller. The heat is on for the time required to
maintain a constant oven temperature.
The temperature controller contains a low-limit switch
which allows the oven to cool down to 200°F (93°C)
before shutting off the blower. An OVER TEMP LED
lights if the oven reaches 650°F (343°C).
Interior View of Control Console
E. Conveyor Switch and Speed Controller
On the control panel is an on-off switch for the
conveyor motor, and under the temperature controller
is the conveyor speed controller. The digital controller
can be adjusted from 1-10 min. bake time (conveyor
speed). Refer to Figure 21.
Conveyor speed is measured by the amount of time it
takes for an item to go through the bake chamber of
the oven.
Conveyor Speed Digital Control