Use Of The Low Pressure (Vacuum) Switch - Promax RG6-E-230V User's Operating Manual

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Advanced Test Products
OPERATING YOUR RG6-E
Procedure for Purging Remaining Refrigerant From the RG6-E
1. Close the ports of the system being serviced that are connected to the Inlet
port of the RG6-E.
2. Close the Inlet port on the RG6-E.
3. Turn off RG6-E.
4. Turn the Recover/Purge valve to the purge position.
5. Turn the Inlet port to the purge position
6. Restart the RG6-E.
7. Run until desired vacuum is achieved.
8. Close the ports on the recovery tank and the RG6-E.
9. Turn the RG6-E off.
10. Return the Recover/Purge valve to the Recover position.
11. Disconnect and store all hoses.
12. Replace the in-line filter on your RG6-E after every time contaminant is
encountered.
TECH TIP
If you have trouble starting or re-starting the
unit due to high
the
valve. Then slowly turn the inlet
valve toward the purge position until the inlet
pressure rises. Close the inlet valve again
and re-start the unit.
The use of the Low Pressure Switch
The RG6-E is equipped with a low pressure switch which
is selectable ON/OFF (VAC SENSOR SELECT). When
the low pressure switch is switched ON the unit will
automatically switch off at 0,45 bar absolute. When the
Low pressure Switch is switched OFF the unit will
continue to pump down the system even when the
vacuum stage has been reached.
first close
6
RG6-E
ON
VAC
VAC
SENSOR
NSOR
SELECT
LECT
OFF

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