Greenheck Waterwash (458292) - Manual (Page 28)

28 April 2005
®
Fire Mode
Sequence of Operation
START
END
Override
Return to Normal
Open All Waterwash Hand
Valves
Reset Hoods Automatic Fire
Suppression System
N.C. Contacts Close
Reset Hoods Automatic Fire
Suppression System
N.C. Contacts Close
Manually Shut-off Water
with Hand Valves
Water Flow Stops
Push Start Fan Button
Exhaust Fan, Supply Fan and Optional
Continuous Cold Water Mist will start
for the normal Cooking Operation.
Start Fan Light ON
Push Stop Fans/Start Wash Button
Exhaust Fan, Supply Fan and Optional
Continuous Cold Water Mist will stop
and allow the wash cycle to initiate.
Start Fan Light OFF
Does the
system have
the 24 Hour Timer
Option?
Are Manual
Shut-off
valves going
to be used?
Is this a single
hood or the last
hood to wash in a
sequence wash
system?
Do you
Want to
Bypass the
24 Hour Timer?
Hoods Automatic Fire Suppression System Activates
N.C. Contacts Open -One to activate waterwash system
fire mode, the other to disconnect the supply fan
Waterwash System Enters Fire Mode
Waterwash and Continuous Cold Water Mist Spray Water in
Hood Plenum. The Fan Circuit is activated. All Lights ON
Exhaust Plenum Drip Dry (1 min.)
Allows excess water
to drain from hood.
Stop Fan/Start Wash Light OFF
Fans Stop
Exhaust, Supply Fans and Optional
Continuous Cold Water Mist shut
down. Start Fan Light OFF.
Exhaust, Supply Fans and Optional
Continuous Cold Water Mist Activate
(1 min.) to exhaust heat and steam
built up in hood. Start Fan Light ON
Water Solenoid Valve Closes
Water solenoid valve remains open
for 30 sec. after the detergent
pump stops to allow detergent to
be purged from the line.
Detergent Pump Stops
Pump run time is factory set
at 4 Minutes. Consult page 26
to change pump run time.
Detergent Pump Activates
Detergent will be injected into the
water line
Cold Water Purge (15 sec.)
Water Solenoid Valve Opens o Allow
Cold Water to be Purged from the
Hot Water line.
Stop Fan/Start Wash Light ON.
24 Hour Timer
The Wash Cycle Will Begin at the
Preset Time.
Sequence Wash Delay To Allow
Water Heater to Regenerate.
Factory set at 15 Min.
Consult page 26 to Change Delay.
To Bypass the 24 Hour Timer
Press the Stop Fan/Start Wash
Button a Second Time.
YES
YES
YES
YES
NO
NO
NO
NO
Fig. 24
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