COMBINATION OVEN WITH PEAK POWER CONTROL

摘要

A commercial oven, such as a combination oven providing steam and convection heating, may provide for two different peak power modes and for steam cooking. A temperature sensor sampling temperature from a region of the oven may be used to detect a complete filling of the oven with steam. The temperature of the temperature sensor is compared against different temperature thresholds depending on the selected peak power so that temperature may be used to discriminate steam filling for different peak power levels.

主权项

1. A combination oven comprising:
an insulated housing including a door closing to define an interior cooking cavity and an opening to provide access to the cooking cavity; a cooking cavity heater communicating with the cooking cavity to heat the cooking cavity, the cooking cavity heater providing at least two power settings according to a power signal; a steam generator for producing steam within the cooking cavity according to a steam production signal; a first temperature sensor for sampling a temperature of the cooking cavity to provide a temperature signal; a second temperature sensor located near an outlet from the interior cooking cavity and producing a second temperature signal; and a controller communicating with the cooking cavity heater, steam generator and first and second temperature sensors, and executing a program stored in memory to: (i) generate a steam detection signal as a function of the second temperature signal and the power signal and indicating the presence of steam filling the cooking cavity; (ii) control at least one of the steam production signal and power signal according to a stored program according to the temperature signal and the steam detection signal.