Lang GCCO-C, Installation Operation & Maintenance

4 

OPERATION 

GENERAL 

Convection ovens constantly circulate air over 
and around the product.  This strips away the 
thin layer of moisture and cool air from the 
product allowing heat energy to penetrate more 
quickly. 

Cooking times can be shortened and cooking 
temperatures can be reduced. 

To convert standard deck oven recipes, reduce 
the temperature 50 degrees and the time by 25%.  
Make minor adjustments as necessary. 

The lower the oven temperature, the more evenly 
the oven will be bake. 

Check the product near the end of the initial 
cooking cycle by turning on the oven light and 

looking through the oven door windows.  Do not 
open the oven doors during the bake as this will 
change the baking characteristics of the oven and 
make it difficult to determine a final program. 

If the product is overdone on the outside and 
underdone on the inside, reduce the baking 
temperature. 

If the product is pulling away from the edge of 
the pan, shorten the cooking time. 

Load each shelf evenly.  Spaces should be 
maintained equally between the pan and the oven 
walls, front, and back. 

For best baking results during random loading, 
load the oven from the top to the bottom. 

CONTROL PANEL 

The control panel consist of the follow items: 

LIGHT SWITCH 

Turns the oven interior lights On and Off. 

POWER SWITCH 

Turns the oven On and Off. 

STATUS SCREEN

Displays the oven status (

EntEr, REAdy, DonE 

etc.) and is the count 

down timer. 

TIER LIGHTS 

Displays the "Tier" that the program is running, mainly used during 
programming. 

PRODUCT BUTTONS

Numbered 1 to 0, these buttons contain the programs that, when pressed, 
will start the product program. 

SHELF BUTTONS

Labeled A to E, these buttons indicate which shelf the product is placed on, 
"A" being the top shelf. 

"MAN PROG" 

Abbreviation for Manual Program, this button allows the operator to enter a 
one-time-only time and temperature.  The button does not require that a 
programming code be entered.  The Manual Program is lost once the oven 
is turned off. 

"TEMP" 

When pressed, this button will change the display to show the current 
operating temperature of the oven. 

"READ/CLEAR"

Pressing this button twice then pressing a Product Button instructs the oven 
to "read back", on the display, the times and temperatures for that product 
button.  It will also switch the oven from a running program to "EntEr" 
when pressed and held until "88888" appears in the display.