MasterCool 99903 Manual De Instrucciones página 4

AUTO-OFF
• Next AUTO-OFF will display.
Press the SELECT button to disable Auto-Off [auto-off will clear from the display.]
If the auto-off feature is displayed the manifold will shut down after 15 minutes. Press
the ON/OFF button to turn the unit back on and allow 15-20 seconds to initialize.
NOTE: It is recommended to keep the auto-off feature enabled to save the life of
the battery.
SETTING VACUUM
• Connect the vacuum sensor cable to the
manifold and turn the unit on.
• Press the VACUUM button. This will
phase out the temperature display and
only show the vacuum units.
• Press the SELECT button until the
desired vacuum unit is displayed.
• Press ENTER to confirm.
• The vacuum display will automatically go off after 15 minutes.
Press the ON/OFF button and VACUUM button to turn the unit on. Allow 30-45
seconds for the sensor to warm up and the correct vacuum reading to appear.
(If pressure, temperature or deep vacuum is being used for an extended period
of time turn the unit off and turn back on again when reading is required.)
NOTE: (SEE FIG. A) To disconnect the vacuum sensor cable be sure to press the
release latch under the connector cable. Pulling on the cable without disengaging
the latch will cause damage and is not replaceable under warranty.
4-WAY DIGITAL VALVE BODY CONFIGURATION
= CLOSED
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= OPEN
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IMPORTANT NOTES FOR SERVICING AC/R SYSTEM
A system that has been opened or one that is found to be excessively low on refrigerant
pressure as a result of a leak, must be fully evacuated by means of recovery/recycling and
deep vacuum. A system that has been evacuated must be repaired, leak tested and
evacuated again before charging.
DIAGNOSING THE SYSTEM PRESSURE AND TEMPERATURE
1. Make sure all valves on the manifold are closed.
2. Connect the blue and red hose from the low and high side of the manifold to the system.
4
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DIAGNOSTIC CONFIGURATION
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VACUUM CONFIGURATION ���������
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CHARGING CONFIGURATION ��������
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Fig. A
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