BKI FH-28 - Manual (Page 9)

Ventless Hood System Operation
7
Operation
Principle of Operation
A blower inside the ventless hood draws cooking vapors through a grease baffle. Inside the baffle, the air
reverses direction two times capturing particles of moisture, grease, and dirt. Material collecting on the
baffle drains into the condensation trough located below the baffle. After air passes through the baffle, it
then enters a specially designed, high efficiency particle/odor filter where any particles that may have
passed through the baffle are trapped. A charcoal filter contained in this particle/odor filter helps to
remove cooking odors from the air. The filtered air then passes through the blower and is returned to the
room.
Preparation
The following conditions must be met for the Filter Hood to function:
• The particle/odor filter must be installed.
• The grease baffle must be installed.
• The filter door must be shut.
• The fire extinguisher system must be active.
• Power must be supplied to the hood.
• The fire damper must be open with link installed (see page 12).
Start-Up
To start the Filter Hood, press and hold the “START” button for three seconds. This is to insure that the
unit has achieved sufficient vacuum for the sensor to determine that the hood is in operation.