INSTALLATION AND OPERATION MANUAL, SELF-GENERATING STEAM FULL JACKETED
TILTING FLOOR MOUNTED KETTLES, MODELS ELT-20F, ELT-30F, ELT-40F, ELT-60F
FUNCTIONING MODE
All electrically powered self-generating, steam jacketed kettles, consist of a jacket containing a
permanent solution of distilled water sufficient to completely immerse and protect replaceable
electric heating elements.
To minimize tampering, the Safety Valve is plumbed toward the rear of the kettle jacket.
Should any component malfunction and cause the pressure in the jacket to reach the rated
pressure of the kettle, this protective device will open automatically and release excessive
pressurized steam.
When the Power Switch is turned ON and the Temperature Control (Thermostat) Knob dialed,
the TEMPERATURE pilot light will light and contactors will close to allow power to the elements.
Steam generation will commence and continue until the preselected temperature is reached, at
which point the contactors open, cutting off power to heating the elements. The
TEMPERATURE pilot light will then extinguish. When the temperature of the water in the
jacket drops slightly, the cycle will repeat itself thus making it possible to maintain any selected
precise cooking mode temperature.
The temperature required for the cooking process to function adequately must be greater than
the boiling point of the liquid food product. Further, the higher the temperature, the greater the
steam pressure attained in the jacket and consequently the quicker the cooking process. For
example, steam pressurized at 30 p.s.i. attains a temperature of 274º Fahrenheit.
Since air is an unsuitable media through which heat may be transferred, it has been removed
from the kettle jacket during testing at the factory. The Pressure Gauge should indicate
vacuum in the jacket in green zone on the gauge (approximately 20 - 25 inches Hg) when the
kettle is cold or has been inoperative for some time. The kettle jacket is intended to function at
all times as a completely sealed self-contained chamber and it is especially advisable not to trip
the safety relief valve during inoperative periods since this will break the vacuum seal and allow
air to enter the kettle jacket.
The Temperature Controls (thermostats) used in these kettles have been calibrated to prevent
the heating elements from generating steam pressure that would exceed the rated working
pressure of the kettle. In the unlikely event that the Temperature Control fails and the heating
elements remain energized, the Safety Valve will blow and release the excessive pressure and
steam from the jacket, consequently lowering the water level in the jacket. The Safety Probe
sensing depletion of the water level in the kettle jacket will not only activate the LOW WATER
level indicator pilot light, but also signal the Liquid Level Control to switch off power and de-
energize the circuit to the heating elements (preventing element burn outs) until the water level
is adequately replenished.
Part No. 10170R3
8
2018-07-19