2. Oven Operation

Control Panel Overview WOW Ovens.

The WOW series ovens feature a digital LCD touchscreen control panel, providing a modern, intuitive interface compared to the controls on Non-WOW models, though the core functionality remains similar. On Model PS 740, each oven deck has its control panel located at the front, offering easy access to all controls. The control panels on other WOW models follow a nearly identical layout, allowing for consistent operation across models. Below are screenshots of the touchscreen display, with numbered labels corresponding to detailed descriptions of each control function.

NOTE: Refer to the Time and Temperature Settings for additional guidance if you use a different oven make or model.

Main display features

Turning On and Off

Home Screen Back Button

Touch the “Back” button on the LCD touchscreen display to access the Control Panel Main Screen.

On/Off control

When touched, this control turns on/off the blowers, heat, and electrical components of the oven.

NOTE: The conveyor motors are integrated into the WOW oven’s computer controls and will not activate until the oven reaches the minimum baking temperature. Products should not be placed on the oven chain until the conveyor has started moving.

Conveyor Speed Controller/Indicator

This display shows the conveyor speed set point in minutes. Changes should only be made to this setting if the actual belt speed is out of alignment with the display’s indicated time or if directed by PJI. Touch the Conveyor speed controller display to open the Belt Speed screen (shown below at left). Touch the conveyor speed display (3A) to open the Conveyor speed control adjustment screen. Use the digital keypad to key in the desired time. Touch the “ENT” button to confirm the setting and return to the Belt Speed screen. Touch the “Change” button (3B) to finalise the time setting.

NOTE: For the approved settings of other oven makes and models, see below.

Temperature Display and Adjustment

This display shows the oven’s temperature set point (4). Touching the display opens the Temperature Setting screen.

Temperature Settings and Adjustment

This display indicates the oven chamber’s actual internal temperature (5).  The set point display (6) indicates the oven’s temperature set point. If the product quality becomes unacceptable, change the set point as needed. To change the setting, touch the set point display (6) to open the temperature adjustment screen.

Use the digital keypad to key in the desired temperature. Touch the “ENT” button to confirm the setting and implement the change. Make changes of 5°C at a time. After each change, the oven needs 20 minutes to reach the new set point temperature fully.

Time Control

The conveyor speed directly affects the pizza’s bake time. To ensure accurate results, refer to the information below for standard bake time guidelines and procedures.

Operation

  • Conveyor: The metal belt moves the pizzas through the baking chamber. Don’t place the product on the belt if the oven has not reached the adjusted temperature.
  • Time adjustments: The standard bake time for a pizza in the Middleby PS740 WOW oven is 5:30 minutes. The conveyor motor has a +/- 10-second tolerance, which means the bake time will be between 5:25 and 5:35 minutes. The bake time needs to be as close to 5:30 minutes as possible. The only way to know the actual time is to time the belt. Some adjustments might be required, and the belt can be adjusted in 10-second increments. If the actual time is 5:25, do not adjust the time. If the actual time is 5:24, adjust to increase the time to get closer to 5:30 minutes.

Testing the bake time on the conveyor

  1. Place a screen on the conveyor belt.
  2. Start your stopwatch once the trailing edge of the screen enters the oven.
  3. Stop your stopwatch once the trailing edge of the screen exits the oven.

Gas Supply

Have you ever experienced some products baking well and others baking poorly? You thought it was the oven temperature, so you turned it up or down and still had poor results? The “great bake, not-so-great bake” described is called the “wave effect.” This is the result of not having enough gas supplied to the oven.

Gas supply problems cause the combustion cycle to work ineffectively. During combustion, gas is burned, creating the temperature needed to bake our product. Improper gas supply lengthens the “down” part of the combustion cycle, decreasing the temperature. The reduced temperature negatively affects the bake of the following pizzas in the oven. The result? The wave effect or the “great bake, not-so-great” bake. A good gas supply eliminates the “wave effect.”

Note: For information regarding adequate gas pressure/testing, refer to your service manual or contact your contractor/installer.

Cleaning essentials

Frequency

Oven exterior, crumb
trays and oven windows

Daily

Oven hoods
Monthly

Oven deep clean
Restaurants over 500 weekly transactions
Monthly

Restaurants under 500 weekly transactions
Every two months

Chemicals

Heavy Duty Degreasing Solution

Supersoak Concentrate

Stainless Steel Cleaner

Sanitiser Mix

Note: Always follow the manufacturers’
chemical use instructions.

PPE

Gloves

Safety Goggles

Apron

Note: Always wear the correct
PPE when oven cleaning.