SECTION 3

OPERATION

II. NORMAL OPERATION - STEP-BY-STEP

A.DAILYSTARTUPPROCEDURE

1.Check that the circuit breaker/fused disconnect is in the on position. Check that the window is closed.

7.Wait for the oven to heat to the setpoint temperature. Higher setpoint temperatures will require a longer wait. The oven can reach a temperature of 500°F (232°C) in approximately 5 minutes.

8. (Optional) Press the Tem- perature () key to show

2.Turn the "BLOWER" () switch to the “ON” ("I") position.

3.Turn the "CONVEYOR"

() switch to the “ON” ("I") position.

4.If necessary, adjust the conveyor speed setting

by pressing the or pushbuttons on the con- veyor speed controller to change the displayed bake time.

5.Adjust the temperature controller to a desired set temperature, if neces- sary.

Press the Set Point and Unlock keys at the same time. Wait for the "SET PT" light to turn on.

Press the Up Arrow and Down Arrow Keys as necessary to adjust the set- point.

or

wait

+ for

or

the Actual Temperature

wait

in the display, and wait

for

for the "ACTUAL TEMP"

 

light to turn on. This al-

 

lows you to monitor the

 

oven temperature as it

 

rises to the setpoint.

 

9.Allow the oven to preheat for 10 minutes after it has reached the set point temperature.

B.DAILYSHUTDOWNPROCEDURE

1.Turn the "HEAT" () and

"BLOWER" ( ) swit-

 

ches to the "OFF" ("O")

+

position. Note that the

blowers will remain in op- eration until the oven has cooled to below 200°F (93°C).

2. Make certain that there are no products left on the conveyor inside the oven. Turn the "CON-

VEYOR" () switch to the "OFF" ("O") position.

3.Open the window to allow the oven to cool faster.

4.After the oven has cooled and the blowers have turned off, switch the circuit breaker/fused disconnect to the off posi- tion.

IMPORTANT

On gas ovens, if the "HEAT ON" light will not illuminate, OR if the oven does not heat, the gas burner may not have lit. Turn the "HEAT" ( ), "BLOWER" (), and "CONVEYOR"

6. Turn the "HEAT" () switch to the "ON" ("I") position, and wait for the "HEAT ON" light to turn on.

wait for

() switches to the "OFF" ("O") position. Wait for AT LEAST FIVE MINUTES before restarting the oven. Then, repeat the Daily Startup procedure.

CAUTION

In case of power failure, turn all switches to the “OFF” ("O") position, open the oven window, and remove the product. After the power has been restored, perform the normal startup procedure. IF THE OVEN WAS SWITCHED OFF FOR LESS THAN 5 MINUTES, WAIT FOR AT LEAST FIVE MINUTES BEFORE RESTARTING THE OVEN.

The burner will not operate and gas will not flow through the burner without electric power. No attempt should be made to operate the oven during a power failure.

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Middleby Marshall PS536-Series installation manual II. Normal Operation STEP-BY-STEP