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6. To stop manual mode steaming, press the TIMED (top) end of the TIMED/MANUAL rocker
switch. The generator stops steaming, and steam flow to the cooking compartment gradually
stops.
7. Carefully open the cooking compartment door, and remove the pans from the slide racks.
•
If the steamer will be used again in a few minutes shut the door to maintain the cooking
compartment temperature.
•
If another use is not planned for more than half an hour, leave the cooking compartment
door slightly open to reduce internal pressure while the steam is condensing and
cooling.
•
If the steamer is not being used again during this shift, perform the Power OFF and Shut
Down and Cleaning Procedures.
SECTION 5: SHUTDOWN AND CLEANING PROCEDURES
A. STEAM GENERATOR BLOWDOWN
(1) Power Off (Automatic Blowdown)
Blowdown occurs automatically when the steamer is turned off at its ON/OFF switch. During
blowdown, the steam generator drain solenoid is rinsed with fresh water, and the boiler is
drained. Blowdown at frequent intervals helps decrease mineral buildup in the steam generators,
and reduces the frequency of descaling and other maintenance.
(2) Blowdown Frequency
The supply water quality determines how often blowdown must be performed. The higher the
feed water, total dissolved solids, and particulate, the more frequently blowdown must be
performed. A determination should be made at the time of installation whether additional
blowdown frequency will be required as part of the daily maintenance based on the water quality
analysis done as part of the installation. This information should be noted in the daily
maintenance program developed for the equipment. If the local water supply meets the minimum
supply water quality standards, observe the following guidelines to establish proper blowdown
scheduling.
•
For units without a water treatment system, blowdown must be performed after every 4
hours of operation and at the end of each shift.
•
For units with a water treatment system, blowdown must be performed at the end of each
shift.
WARNING
SEVERE BURNS may result from exposure to steam.
Do not open the steamer door before steam flow stops. Stand back
when opening the compartment door. Open the door slightly to allow
steam to vent before looking or reaching into cooking compartment.
Do not reach into cooking compartment until the steam has cleared.
Do not reach into steamer or handle hot items without wearing
heatproof gloves. Wet or damp gloves conduct heat, and may cause
burns when touching hot items.