Chapter 2 - Principle of Operation, Page 2-10_________________________________________________
Wash Cycle – Cont.
The Wash Cycle’s hot detergent water washes the day’s grease, dust and lint accumulation from the
Extraction Chamber baffles, the Particulate Separator, the gray dust from the UV Lamps, and the smoke
particles from the ESP Cells, flushing them down to the main gutter which slopes to a pre-flushed
drain which leads to the building drain system.
At the end of the Wash Cycle sequence, the water automatically shuts off, and the interior of the
Ventilator is clean and ready for the next day’s operations. If the Ventilator is a standard CG3-
UVi-SPC with electric damper the damper remains in the wash position until the exhaust fan is
restarted. This is to prevent conditioned air from going up the exhaust system during off hours.
The factory recommended length of the Wash Cycle, Delay and Rinses for the Upper ESP Cell Washes,
as shown in Table T-2-8-1,
are the standard recommended times to be programmed into the Command
Center.
If the Cells are not adequately cleaned the Wash Cycle time may have to be increased and/or
the delay time increased to allow more soaking time. The wash and rinse cycles may be programmed for
between 1-99 minutes. The delay time between the washes and rinses may be programmed for a length
of time necessary to allow the building’s hot water system to recover. The delay time may be
programmed for between 1-99 minutes however the minimum factory recommended delay is 20
minutes as shown in Table T-2-8-1.
Refer to your Command Center Technical Manual for instructions on
programming wash, rinse and delay times.
The factory recommended length of wash time for the Extraction Chamber/Particulate Separator/UV
Lamp/Lower ESP Cell Wash is dependent upon the type of cooking equipment being used as shown in
Table T-2-10-1.
However, adequate cleaning is dependent upon water pressure, water temperature,
daily grease accumulation, the length of the wash cycle, frequency of wash cycle and the type of
detergent being used. It may be necessary to increase the wash time for the Extraction
Chamber/Particulate Separator/UV Lamps above the factory recommended times to achieve proper
cleaning. Refer to your Command Center Technical Manual for instructions on programming wash
times. The water consumption for all the Wash and Rinse Cycles is shown on Table T-2-12-1.
Minimum Factory Recommended Wash Cycle Times for the
Extraction Chamber/UV Lamp Wash/Lower ESP Cells
Type of Cooking Equipment
Length of
Wash Cycle
(in min.)
Light Duty –
Ovens, steamers and kettles
3
Light/ Medium Duty –
braising pans, tilting skillets,
fryers, open burner ranges, hot top ranges, and
conveyor ovens.
4
Medium Duty –
griddles and grooved griddles.
5
Heavy Duty –
gas and electric char broilers, upright
broilers, woks and conveyor broilers.
7
Extra Heavy Duty –
solid fuel broilers
9
Table T-2-10-1
