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3.1 Operating Controls and Indicators
The controls and indicators required to operate the
Pressureless Steam Cooker are listed in Table 3-1,
together with a short functional description of each.
Figure 3-1 shows the physical location of each control and
indicator.
3.2 Operating Procedures
The ST-12 Pressureless Steam Cooker defrosts frozen
foods and cooks fresh and defrosted foods. The cooking
compartment permits selection of continuous (constant
steam) cooking or timed (0–60 minutes) cooking.
Instructions for operation are included in this section.
Consult Test Kitchen Bulletin for detailed cooking
information.
3.2.1 Steam Source Operation
The Pressureless Cooker is supplied mounted on a
cabinet containing either a steam boiler or controls for
direct-connected steam. Manual controls are accessed by
opening the cabinet door. The start-up procedure for the
steam source is completed once before each daily
operating period of the cooker. (For steam boilers, see
instruction plate.)
3.2.2 Preheating
Before each initial operation of the cooker, and at any
other time when the cooking compartment is cold, a 1-
minute preheating period is required. To preheat the
cooker, put steam source into operation and proceed as
follows:
1. Close cooking compartment door.
2. Set 60-Minute Timer Dial (1) to "4-minute" setting.
Total elapsed preheating time equals the timer
setting plus a short delay period needed to active a
thermostatic switch included in the controls.
3. Turn off buzzer, which sounds to indicate cooking is
complete, by setting the Timer Dial (1) to OFF position.
3.2.3 Cooking
Before loading the cooker, be sure compartment is hot.
See Subsection 3.2.2 for preheating instructions.
1. Slide pans of food into cooking compartment pan
supports.
2. Close cooking compartment door.
SECTION 3 OPERATION
NOTE:
3. Set timer cooking time:
a. constant steam—for continuous cooking
b. 60-minute timer—for timed cooking.
4. Set appropriate timer to the required cooking time (see
pages 3.3 to 3.6).
5. Turn off buzzer, which sounds to indicate cooking is
complete, by setting timer dial (1) to the OFF position.
6. Open door sightly at first letting most of the steam out of
the compartment and then fully open the door.
7. Unload by sliding pans of food from pan supports,
taking care to avoid hitting compartment opening.
3.2.4 Shut-Down Procedure
No shut-down procedure is required for the cooker except
to check the timer dial (1) are in the OFF position and that
the compartment door is open. When all cooking has been
completed for the day, the steam source must be shut off.
(For steam boilers, see instruction plate.)
When the unit is not in use, leave the cooking
compartment door slightly ajar to prolong the life of
3.3 Cleaning
After each period of daily operation (more frequently as
required to maintain cleanliness), the cooker should be
thoroughly cleaned by completing the following steps:
1. Remove left, right & center pan supports, and drain
screen by lifting up and off mounting studs. Wash with a
mild detergent. Rinse and set aside for reassembly.
2. Wash cooking compartment interior using a mild
detergent and water. Rinse and dry thoroughly.
3. Replace pan supports, and drain screen in compartment
and leave door slightly ajar.
3.4 Drainage
3.4.1 Cooking Compartment Drainage
The bottom of the cooking compartment is angled slightly
toward the rear of the unit. This assures that any
condensate build-up or spills will be directed toward the
drain hole, which is located at the rear bottom center of the
cooking compartment. Any liquid exiting the cooking
compartment runs down the cooking compartment drain
tube and into the drain line.
3-1
CAUTION
the door gasket.
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