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Section 2: System Installation
SWPS Control System
Since both the input hose and the probe cable must be connected to the PCM, place the optional case bottom
with PCM, or just the PCM, as close to the recovery point as possible. Ideally, the PCM should be placed
within 20’ (6 m) of the intake assembly (the length of the input hose/probe cable), and within 20’ (6 m) of the
product recovery tank (the length of the output hose unless additional lengths are ordered). Confirm that the
product recovery tank is grounded and is connected to the grounding clip on the output hose.
The two input connections to the PCM (hose and cable) can be made through the right portal of the optional
weatherproof case. Remove the black portal cover by twisting it counterclockwise. The cover is tied to the dust
plug at the pump input. Remove the dust plug by opening the two handles on the input coupler. Store the portal
cover and dust plug within the back of the case (if no case, then place the plug within the spare parts bag).
Run the input hose and control wire through the right portal. Connect the input hose to the input coupler. This
is easily done by closing first one, then the other handle on the coupler. Next, locate the 3-pin product probe
cable receptacle. Carefully connect the probe cable to the receptacle on the EP box. The connector and
receptacle are slotted. Line up the slots, push on the connector and tighten it clockwise.
Now remove the left portal cover by twisting it counterclockwise. The cover is tied to the dust cap at the pump
output. Remove the dust cap by opening the two handles on the cap. Store the portal cover and dust cap
within the back of the case (if no case, then place the cap within the spare parts bag).
Connect the output hose to the output adapter, running it through the left portal. As with the input hose, this is
easily done by closing first one, then the other handle on the output coupler. Run the free end of the output
hose to the recovery container and connect its coupler securely to the tank. Confirm that the spring clip at the
end of the hose is grounded.
Now connect the Tankfull probe. The T
ankfull probe comes with a brass 3/4” NPT fitting that is attached to a 2”
NPT aluminum reducer fitting for use with a standard 55 gallon (208 liter) drum or larger tank. Remove the 2”
NPT reducer fitting for use in a 3/4” NPT bung hole. Adapters are available for other fittings. The Tankfull float
will rise when the product level is approximately 4” (102 mm) from the top of the recovery tank. The standard
T
ankfull assembly comes with a 25’ (7.5m) cable, but alternate lengths can be provided by Geotech.
Once the Tankfull probe is fitted onto the recovery tank, run its cable next to the input hose into the right portal
on the PCM. Locate the 8-pin Tankfull control cable receptacle. Carefully connect the control cable to the
receptacle on the EP box. The connector and receptacle are slotted. Line up the slots, push on the connector
and tighten it clockwise. The Tankfull and buoy cable connectors are not interchangeable.
When the Tankfull float rises to the top of its travel, the pump will automatically turn off and the red indicator on
top of the control switch box will be illuminated. The red alarm indicator will also be illuminated if the Tankfull
connector becomes disconnected or if the cable is accidentally cut.
The Tankfull cable must be connected for the system to operate. This also acts as a safety
function in case the cable is severed. Using HAND mode will bypass the failsafe and allow the
motor to run regardless of a broken tankfull probe.
