Refrigerant Recovery Unit
2020-9000 Rev 0
13
IMPORTANT:
After use, turn the knob to the OFF position (to close
inlet/outlet valves). Input and output fittings should be covered
with protective caps when the unit is not in operation. Moisture in
the air is harmful to the recovery process and will shorten the
lifespan of the unit.
2.2. High Pressure Shut-Off Feature
The ECO-2020 has an internal high-pressure shut-off switch. If the pressure
inside the system rises above the rated shut-off pressure (see specifications),
the compressor will automatically shut off and the red high pressure alarm light
will turn on. In the event the switch is activated, the output gauge should
indicate < 435 psi (30 bars) to reset the switch.
2.3. Low Pressure Shut Off Feature
The unit has an internal low-pressure shut-off switch. If the pressure inside the
system is lower than -14 in Hg (-35.5 cm Hg) for approximately 20 seconds, the
unit will automatically shut off and the green low-pressure alarm light turns on.
2.4. 80% Shut-Off Feature
This unit can be used with a recovery tank’s float level sensor. Connect the
recovery unit and the tank with the 80% shut-off cable. If the liquid refrigerant
reaches 80% capacity of the tank, the recovery unit will automatically shut off
and the red 80% shut-off alarm light turns on. Before restarting the
compressor, be sure to install a new (empty) tank.
IMPORTANT:
If the refrigerant tank has no float level sensor,
remove the 80% shut-off cable from the unit. Otherwise, the
recovery unit will not start.
2.5. Recovery Mode (Liquid or Vapor)
The ECO-2020 can be used for pumping virgin refrigerant on an intermittent
basis. Unlike recovered refrigerant, virgin refrigerant does not contain oil.
CAUTION:
Routinely pumping virgin refrigerant through the ECO-2020
can remove lubrication from the compressor, resulting in premature
failure.
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