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INTRODUCTION
This service and parts manual contains general information, installation operation, principles of
operation, trouble-shooting, and maintenance information for Market Forge ST-20 Pressureless Steam
Cookers. Also included is a part list in which each replaceable part is identified and shown in an
accompanying exploded view.
Description:
The ST-24 is a pressureless steam cooker consisting of two independently controlled compartments
enclosed in a single cabinet. Each compartment is equipped with a separate three-piece door with inner
gasket plate isolated from the exterior surface. Door latches operate by action for positive sealing of
inner door. Steam and steam-condensing circuits are electrically controlled. Operating controls are
displayed on a single front-mounted panel and include separate timers with indicator lights for selection
of constant steam or 60-minute-long duration cooking.
A separate steam source is required for operation of the Pressureless Cooker and is normally purchased
with it; please refer to the respective manual for guidance.
Basic Functioning:
The Model ST-24 may be operated with only one compartment in use; or both may be used
simultaneously. Each compartment is equipped with identical controls, allowing selection of constant
steam or 60-minute timer operation. The cooker becomes operational when it is set to constant steam,
or the timer is set at the desired cooking time and the compartment door is closed. The indicator light
comes on and the steam solenoid valve opens, allowing steam to flow into the compartment.
When steam flowing inside the compartment has raised the interior temperature to 195°F, the contacts
of a thermostatic switch automatically close, completing the circuit to the timer motor and starting the
selected cooking time period. At the end of the set interval, timer contacts switch to shut off the cooking
operation and sound a signal buzzer. The buzzer is silenced by returning the timer dial to the OFF
position. In the constant steam mode, operation will be continuous.
Steam emitted from the compartment along with liquid cooking drainage is directed through a drain
screen inside the compartment into the cooker drain line. A cold water solenoid valve connected into
the cooker drain line is automatically actuated by a thermostatic switch in the cooking compartment
drain to condense the steam to water prior to discharge into the drain.
Shipping Damage Claim Procedure:
The equipment is crafted and inspected carefully by skilled personnel before leaving the factory. The
transportation company assumes full responsibility for safe delivery upon acceptance of this equipment.
If shipment arrives damaged:
Visible loss or damage:
Note the damage or loss on freight bill or express delivery and signed by the person making the delivery.
File claim for damages immediately:
Regardless of the extent of damages.
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