Middleby Marshall PS555G GAS installation manual II. Normal Operation STEP-BY-STEP

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SECTION3-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.

ENGLISH

2. Turn the "BLOWER" ( )

 

 

switch to the “ON” ("I")

 

position.

8.(Optional) Press the Tem- perature () key to show the Actual Temperature in the display, and wait for the "ACTUAL TEMP" light to turn on. This al- lows you to monitor the oven temperature as it rises to the setpoint.

wait

for

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

or

 

change the displayed

 

bake time.

 

5.Adjust the temperature

controller to a desired set

 

wait

temperature,

if neces-

+

sary.

 

for

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- or point.

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

wait

for

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" () 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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Contents PS500 Series Gas and Electric Ovens Rev. B V2 11/01English Table of Contents II. Oven Components see Figure DescriptionOven Uses Installation Electrical specifications for PS555G and PS570G gas ovensBase PAD KIT see Figure QuantityRequirements Installation KIT see FigureIII. Ventilation System RecommendationsRestraint Cable Installation IV. Assembly2c. Legs/Casters Installation Quad Ovens Conveyor InstallationInstall the conveyor drive motor cover 10 Checking the conveyor tensionAdditional Information Gas Ovens Final AssemblyVI. Electrical Supply Additional Information Electric OvensVII. GAS Supply Rate regulator Must be installed in the line BeforeAbove steps or when necessary during service main System by closing its individual manual shutoff valve dur15 Flexible Gas Hose Installation Gas ConversionOperation Location and Description of ControlsII. Normal Operation STEP-BY-STEP III. Quick Reference Digital Temperature Controller IV. Quick Reference Troubleshooting Maintenance Maintenance DailyII. Maintenance Monthly When removing the conveyor, refer to -9 in , InstallationRemove the idler shaft assembly from the conveyor III. Maintenance Every 3 MonthsSplit Belt Disassembly and Cleaning Loosen the locking collar set screw, as shown in FigureLubricating the Blower Fan Bearings IV. Maintenance Every 6 MonthsBlower Belts Electric Ovens KEY Spare Parts KIT Available separately. See FigureGas Ovens Item Qty DescriptionWiring Diagrams ThermocouplesElectricalwiringdiagrams Located inside the machinery compartment Important diagram for the oven is alsoAn electrical wiring 380V or 480V, 50/60Hz, 3 Ph