Table of Contents
Advertisement
4.1 GENERAL
The HE gas fired convection oven employs a carefully
designed ventilation combustion system which achieves
optimal control of combustion products. A convector fan
distributes heat uniformly throughout the oven interior The
gas burners are ignited by a pilotless, direct spark ignition
system. Cooking temperature is maintained by a thermostat
mounted on the control panel. Manual 60-minute and 5 hour
timers assist the operator but do not control oven operation
4.2 COMBUSTION/VENT CIRCUITS
With electrical power applied, gas supply
SECTION 4 PRINCIPLES OF OPERATION
valve open, and the power switch on, electrical control
circuits are activated to energize the burner electrodes
Gas passes through the regulator and valve to the burner
orifices. Primary air enters the burner tubes through
shutter openings and mixes with the gas, which is ignited
by the ignition electrodes. The flame heats a baffle plate
mounted under the cooking chamber. Heat passes to the
oven interior by radiant and convection transfer from the
baffle plate. Combus tion products are directed via internal
flues around the sides of the cooking chamber, where
additional heating is achieved, and into the flue deflector
at the top.
Figure 4-1 Cutaway Oven
4-1
Hide quick links:
Advertisement
Table of Contents
