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Cover Removal and Replacement
If the LPSA Air Dryer is supplied with a cover, remove the screws fastening the cover to the
base. Lift the cover straight up off the base until sufficient space is available to reach under and
unplug the fan cord from the cooling fan. There is 24 inches of cord length available to lay the
cover down without disconnecting the cord, if desired.
When reinstalling the cover, reconnect the fan cord, if required, and set the cover back on the
base. Ensure the fan cord does not come in contact with the compressor’s aluminum air after-
cooling coil. Replace the screws.
Operation
To start the LPSA Air Dryer, connect the unit to a grounded power source rated for the voltage
and current requirements stated on the label of the unit.
Note:
220VAC and 240VAC units may
be provided with a standard NEMA rated cord. The plug on this cord must be cut off and the
unit hard-wired to main power. Color codes: Black=Line or L1, White=Neutral or L2,
Green=Ground or Earth.
Set the outlet dry air flow to 20 SCFH or less for LPSA20 and 60 SCFH or less for LPSA60. Do
not exceed rated capacity.
IMPORTANT:
The flow meter installed on the LPSA Air Dryer is set to read accurately when
the discharge is set to atmospheric pressure. If the actual discharge pressure is substantially
above atmospheric pressure, the reading can be adjusted to determine the precise flow rate
according to the following formula:
(
adjustedflow
) = (
measuredflow
)
x
√
dryairpressure
+14.7
14.7
IMPORTANT:
Ensure that vacuum is not applied to the LPSA Air Dryer if power is off. If
vacuum is being created by the venturi injector, the LPSA Air Dryer must be powered or damage
will occur to the ATF.
WINTERIZING:
Disconnect O3 delivery line from venturi injector.
