Daily Operation - GAYLORD CG3 Series Technical Manual

DAILY OPERATION

All functions of the ventilator, such as starting the exhaust fan,
starting the wash cycle, etc., are controlled by the Command
Center located on the control cabinet. Refer to Pages 14
through 17 for detailed instructions on the operation of the
Command Center.
COMMAND CENTER
MODEL C-6000 SERIES
VENTILATOR CONTROL CABINET
MODEL GPC-6000 SERIES
Starting the Exhaust Fan
To start the exhaust fan push the "Start Fan" button on the
Command Center. If the Command Center is programmed to
start the fan automatically, then the start button does not need
to be pushed. It is important to start the exhaust fan before
turning on the cooking equipment.
When the exhaust fan is activated the following occurs:
1. The damper begins opening to the exhaust position.
(N/A on CG3-FDD and CG3-ND)
2. A green light on the Command Center illuminates.
3. The supply fan comes on.
4. The digital display reads "Starting Fan & Damper Open-
ing" for approximately 5 seconds. Then the digital display
reads "Starting Fan, xx Seconds to Fan On". xx is the
coundown in seconds until the exhaust fan comes on.
5. After the damper fully opens (elapsed time approximately
45 seconds) the exhaust fan comes on.
6. The digital display then reads "Fan On 12:00" (current
time) and "Start Wash> F2".
Stopping the Exhaust Fan and
Starting the Wash Cycle
CAUTION: The cooking equipment must be shut off prior to
shutting off the exhaust fan. Failure to do this will cause
excessive heat buildup and could cause the surface fire
protection system to discharge.
To start the wash cycle push the "Start Wash" button on the
Command Center. If the Command Center is programmed to
start the wash automatically, then the start button does not
need to be pushed. When the wash cycle is activated the
following occurs:
1. The exhaust and supply fans shut off.
DAILY OPERATION
FIG. 6
2. The damper begins closing forward to the wash position.
(See Figure 3, page 7). This action takes approximately 45
seconds. (N/A on CG3-FDD and CG3-ND)
3. The digital display reads "Starting Wash, Damper Clos-
ing" for approximately 5 seconds, then the digital display
reads "Starting Wash, Wash On in xx seconds". xx is the
countdown in seconds to until the wash starts.
4. After the damper closes to the wash position, the hot,
detergent injected, water sprays come on to wash away
the grease collected during the days operation. The wash
cycle stays on for the length of time programmed in the
Command Center. The length of the wash cycle may be
set between 3 minutes and 9 minutes. Typical settings are
3 minutes for light-duty equipment, 5 minutes for medium-
duty equipment and 9 minutes for heavy-duty equipment.
Refer to page 15 for details on setting the wash time.
5. During the wash cycle, the digital display reads "Wash
On, Wash #1 xxx seconds". xxx is the coundown in
seconds until the wash system shuts off.
6. Upon completion of the wash cycle, the damper stays in the
closed wash position until the exhaust fan is re-started. This
is to prevent conditioned air from going up the exhaust stack
during off hours.(N/A on CG3-FDD and CG3-ND)
7. The digital display now reads "Fan Off 12:00" (current
time) and Start Fan>F1.
After the wash cycle is completed, wipe the exposed front
surface of the damper at the air inlet slot, as well as other
exposed exterior surfaces. (Refer to Figure 7, Page 11).
In very heavy cooking operations it may be necessary to wash
the ventilator(s) more than once a day. This can be done
manually by pushing the "Start Wash" button
NOTE: For proper operation of the wash system there must
be adequate water pressure and temperature. There is a
pressure/temperature gauge inside the control cabinet.
Water Pressure 40 psi min. - 80 psi max.
Water temperature 140°F min. - 180°F max.
NOTE: Some control cabinets are equipped with a low
detergent switch. If so equipped, the green light will flash if the
detergent tank is empty or if the detergent pump is malfunc-
tioning and detergent is not pumping. The digital display reads
"Low Detergent" and the text alternates from "Fill Tank" and
"Check Pump". If the detergent tank is filled with water the
detergent switch will activate as if there is no detergent.
NOTE: The ventilator wash system is designed to remove daily
accumulations of
chamber. If the ventilator is not washed a minimum of once
during a cooking day, a grease buildup could accumulate
which the wash system cannot remove. If this occurs, it is
recommended that the ventilator be put through several wash
cycles by pushing the "Start Wash" button on the Command
Center. If this does not remove the grease, it will be necessary
to remove the grease manually by using a scraping tool, such
as a putty knife, or retain the services of a commercial hood
cleaning service to steam clean or pressure wash the system.
WARNING: Some commercial hood cleaning services blow
a fire retardant chemical into hood and duct systems. Fire
retardant chemicals should never be applied to any portion of
The Gaylord Ventilator. If retardant is applied to the ventilator,
it must be removed.
10
grease within the extraction