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April 2005
HOW TO USE THIS MANUAL
Read and save these instructions. This manual is designed to assist qualified field service, operating and
maintenance personnel with the installation, operation, and maintenance of Greenheck canopy type kitchen
hoods and accessories.
Procedures described in this manual should be followed in the order they appear, with attention to all safety and
caution statements.
RECEIVING, HANDLING & STORAGE:
Upon receiving the equipment, check for both obvious and hidden damage. If damage is found, record all
necessary information on the bill of lading and file a claim with the final carrier. Check also to be sure that all
parts of the shipment, including accessories, are accounted for.
If a kitchen hood must be stored prior to installation, (or for any long period) it must be protected from dirt and
moisture. Indoor storage is recommended. For outdoor storage, cover the hood with a tarp to keep it clean, dry,
and protected from UV (Ultra Violet) radiation damage.
NOTE:
The kitchen hood is shipped with a plastic film attached to the surface. The film is to protect the panels
from minor scratches during handling and shipment. This film must be removed prior to assembling the system.
When the system is operating, the film will melt and bake on to the surface. Once the film is removed caution
should be used in handling the parts.
Improper storage which results in damage to the unit will void the warranty.
NOTE: The functions listed above require the control center to be wired to the exhaust fan and plumbed.
WATERWASH SYSTEM FUNCTIONS:
Greenheck waterwash hoods are designed for three primary functions:
1) Capture and contain the effluent produced by the cooking process.
2) Remove grease and other contaminants from the airstream with a series of extraction baffles.
3) Wash the baffles and other surfaces within the exhaust plenum to remove contaminants.
Normal Exhaust Operation and Contaminant Collection:
The system's exhaust fan is manually controlled by a push-button switch (Start Fan) located on the face of the
waterwash control station. The exhaust system operates until the Stop Fan/Start Wash push-button switch is
pressed.
Optional Continuous Cold Water Mist:
The optional continuous cold water mist is controlled by the same push-button switch (Start Fan). With this
option, all hoods with this option are sprayed continuously when the fan is on. This feature acts as a spark
arrestor for solid fuel applications, as per NFPA 96, Standard for Ventilation Control and Fire Protection of
Commercial Cooking Operations. This does not have to be all hoods - can be just the solid fuel hoods.
Cleaning Cycle:
A factory programmed controller triggers the waterwash function when the exhaust fans are shut down at the
end of each day’s cooking operations. A pressurized spray of hot water and detergent cleans the hood in a
timed cycle. When the cleaning cycle is complete, the controller runs the exhaust fans briefly to remove steam
from the exhaust system. The controller then automatically resets itself. If the kitchen is closed for a day, the
wash cycle will skip as long as the start fan button has not been pushed.
For multiple hoods totalling over 20 ft. 0 in. in length, systems are designed to wash each hood or group of
hoods sequentially. (Hoods totalling up to 20 ft.0 in. in length can be washed as a single unit.)
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