Drytac HOT PRESS HGP220 Manuel de l'opérateur - Page 9
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VACUUM PRESSURE GAUGE: Indicates actual vacuum pressure. A normal reading is 25" or
higher (with the variable pressure adjustment set to maximum).
AUTO / MANUAL SWITCH: Acts as a simple On/Off switch for the pump if you do not need to
use the Timer.
TIMER CONTROL: Controls the vacuum pump and pressure release valve. At the end of the
preset cycle, the pump will turn off and the vacuum will be automatically released.
POWER SWITCH: Switches on the heating system and the timer.
TEMPERATURE CONTROLLER:
Indicates the actual glass temperature and maintains the
temperature at your chosen preset level.
INITIAL TEST
Test the GFCI (Ground Fault Circuit Interrupter) circuit breaker. It is the circuit breaker located
nearest to the center of the rear panel of the press. It should be tested after installation (and
periodically thereafter) to ensure that it is functioning correctly. To test it, press the test button
(labeled "T") adjacent to the breaker handle. The breaker should immediately trip. If it does not, the
GFCI is defective and must be replaced. Note that the equipment must be connected to a power
source in order to perform this test.
Verify that both of the circuit breakers on the rear panel of the press are in the ON position (levers
pointing to the right). Check that the Auto/Manual switch located on the front panel is in the AUTO
position, and that the power switch is in the OFF position. Connect the power cord to the electrical
outlet. Remove any materials from inside the press, then close and latch the lid. Turn the Pressure
Adjustment Knob fully clockwise (maximum vacuum).
Turn on the power switch on the front of the press. The displays on the Timer and Temperature
controllers should light up. The Timer will normally indicate 2:00 and the temperature controller will
indicate room temperature. Within a minute or so, it will start to increase. After about 15 minutes,
the temperature should reach the setting that was preset at the factory, normally 194° F (90° C).
Now press the Start button on the timer (the one in the upper right corner). The vacuum pump
should start, and the timer should begin to count down. Within a few seconds, the pointer on the
vacuum gauge should start to move. Within 30 seconds, the reading should be steady at 25" or
higher.
When the timer reaches zero, the pump should automatically cut off, and the vacuum should
automatically be released. Check the vacuum gauge, which should now be back at a zero reading.
Illustration 7B: Press Start Button to begin initial test.
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