VL SERIES STEAMERS - GENERAL
Pa
e 10 of 88
4. Prevent
A. Set the timer to the desired cookin
time.
The timer must be set past five minutes to
chan
e the state of the timer control
micro switch contacts.
B. Pull the steam control arm handle forward
and lock it by pullin
the handle down.
This opens the steam inlet
ate valve,
allowin
steam to enter the compartment.
C. Press the compartment power switch to
supply power to the compartment controls.
The prevent compartment controls feature
load compensated cook times by utilizin
a thermal switch. With this feature, when
the compartment temperature reaches
180°F (the temperature at which
preheatin
or defrostin
is complete) the
red li
ht will come on and the timer will
start. For a small food load, the delay time
before the timer starts mi
ht be a minute
or less. For a lar
e food load, the delay
time could be four and five minutes.
Durin
preheat, the steam exhaust
solenoid valve (N.O.) is open to allow the
full free ventin
of cooler air and
condensate from the compartment. When
the temperature reaches 180°F, the
exhaust solenoid valve is ener
ized and
closes. The compartment should then
pressurize to 6 psi.
D. Approximately one minute before timer
reaches zero the steam control solenoid is
ener
ized to unlatch the steam control
arm. An internal sprin
will automatically
pull the arm to the rear. This closes the
steam inlet
ate valve and opens the
steam exhaust
ate valve, allowin
steam
and pressure to exit the compartment.
When the timer reaches "0" the red li
ht
shuts off and a buzzer sounds indicatin
the end of the cook cycle. Turn the
compartment power switch OFF to silence
the buzzer and remove power from the
compartment controls.
E. Turn the screw handle on the
compartment door counterclockwise
until
the
asket no lon
er seals a
ainst the
compartment surface. After the remainin
steam escapes, move the latch paddle to
the left and open the door.
