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O
PERATION
Venting Instructions
Check vacuum/pressure gauge when kettle is cold. Gauge should be in the green vacuum zone (25 - 30 In. Hg or
635 - 762 mm Hg of vacuum). If not, air is present which must be vented (removed) for proper heating. Use the
following procedures to vent air:
1. With the kettle empty, place power switch in ON position.
2. Set temperature control thermostat to '10'. Heat kettle until heat indicator light goes off.
3. Using a 7/16" wrench, open bleed vent (rear of kettle) one full turn for 10 seconds and close.
4. Cool kettle. Check for proper vacuum in the green vacuum zone (25 - 30 In. Hg or 635 - 762 mm Hg of vacuum ). If
reading is not low enough, repeat steps 1 to 3.
Adding Water (Low Water Light Comes On)
It may be necessary to replenish water in the jacket when the low water indicator comes on. Do so as follows:
1. Unit should be completely cold and off.
2. Lift handle of pressure relief valve to release vacuum in kettle. (Relief valve is at left rear of kettle).
3. Remove air vent nut at the rear of the unit.
4. Using pure distilled water only, pour 140 fluid oz. (4L) into the opening or pour 376 fl. oz (11L) if completely empty. (A
funnel will be helpful). Water will enter the kettle slowly, as air must escape through the same hole.
5. When sufficient water has been added, replace and tighten the nut. Be sure to seal threads with a pipe joint
compound suitable for steam at 50 psi.
6. Vacuum must be re-established. (See Venting Instructions in this Section).
Safety Valve Maintenance and Testing
Under normal operating conditions a "try lever test" should be performed every two months. Under severe service
conditions, or if corrosion and/or deposits are noticed within the valve body, testing must be performed more often.
A "try lever test" should also be performed at the end of any non-service period.
Hot, high pressure fluid may be discharged from body drain and vent during "try lever" test. Care must be taken
to avoid any bodily contact.
High sound levels may be experienced during "try lever" test. Wear proper safety equipment and exercise extreme
care! Test at, or near, half of the operating pressure by holding the test lever fully open for at least two seconds to
flush the valve seat free of sediment and debris. Then release lever and permit the valve to snap shut.
If lift lever does not activate, or there is no evidence of discharge, turn off equipment immediately and contact a
licensed contractor or qualified service personnel.
8
PAGE
OF 24
Self-Generating Steam Jacketed Tilting Kettle
CAUTION
CAUTION
CAUTION
INSTALLATION & OPERATION MANUAL 10067 REV 8 (12/21)
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