Fan Motor (Power Transformer Side); Convection Cooking System - Electrolux ICON E30SO75ESS Technical & Service Manual

FAN MOTOR (POWER TRANSFORMER SIDE)

The fan motor drives a blade which draws external cool
air. This cool air is directed through the air vents
surrounding the power transformer and cools the power
transformer. This air is channelled through the oven
cavity to remove steam and vapors given off from the
heating foods. It is then exhausted through the
exhausting air vents at the oven cavity.

CONVECTION COOKING SYSTEM

This oven is designed with a hot air heating system
where food is not directly heated by the heating element,
but is heated by forced circulation of the hot air produced
by the heating elements. The air heated by the heating
elements is circulated through the convection passage
provided on the outer casing of the oven cavity by means
of the convection fan which is driven by the convection
motor. It then enters the inside of the oven through the
vent holes provided on the top and left sides of the oven.
Next, the hot air heats the food on the turntable and
leaves the oven cavity through the vent in the center of
the oven cavity back side wall. Without leaving the oven,
this hot air is reheated by the heating elements, passes
through the convection passage and enters the inside of
the oven cavity again, in a continuing cycle. In this way,
the hot air circulates inside the oven cavity to raise its
temperature and, at the same time, comes into contact
with the food being cooked. When the temperature
inside the oven cavity reaches the selected temperature,
the heating elements are de-energized. When the
temperature inside the oven cavity drops below the
selected temperature, the heating elements are
energized again. In this way, the inside of the oven
cavity is maintained at approximately the selected
temperature. When the convection time reaches 0, the
heating elements are de-energized and the convection
fan stops operating and the oven shuts off.
Flow of hot air:
The rotation direction of the convection motor is
controlled by relay RY6. When the convection fan rotates
clockwise, the hot air from the oven cavity left side wall
blows stronger than one from the oven cavity top wall.
(This mode is called "Convection mode".) When the
convection fan rotates counterclockwise, the hot air from
the oven cavity top wall blows stronger than one from
the oven cavity left side wall. (This mode is called "JET
mode".)
Top Heating
Element Unit
Side Heating
Element Unit
Convection
Fan
FRONT VIEW
Oven cavity left side
Hot air
Top heating element unit
Hot air
Side Heating
Element Unit
Turntable
Convection Mode
2-9
Operation
JET
Mode
Convection Mode
Figure 2-7.
Oven cavity
Hot air
top wall
Convection Fan
Top heating element unit
Side Heating
Element Unit
JET Mode
Figure 2-8.
Hot air