WP440L-Series Reverse Osmosis System
Installation Instructions and User Manual
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Product Water Storage Tank Level Float Installation
Note: Please read all steps of installation instructions before beginning.
Note: If using a repressurization pump, a third float should be used to turn the pump off when the tank is
empty.
1. Remove the bulkhead nut from the bulkhead fitting and place the bulkhead through the opening in the tank from
the outside, making sure the bulkhead gasket is on the outside of the tank. Loosely connect the bulkhead nut and
do not tighten it.
2. Position the float tree assembly on the inside of the tank and pull the float wires through the bulkhead fitting.
Connect the float assembly tee to the bulkhead fitting by turning the bulkhead fitting from the outside of the tank.
Tighten the bulkhead nut.
CAUTION: Do not tighten by turning the float assembly inside the tank, float damage can occur.
Tighten only by turning the bulkhead fitting from the outside of the tank.
3. Position the electrical conduit elbow on the outside of the tank and pull the float wires into the conduit elbow.
Thread onto the bulkhead fitting.
4. Install SO cord (supplied by customer) through the strain relief fitting. Make sure enough wire is run into the
conduit fitting.
5. Connect the wires from the SO cord to the float switch wires with customer supplied wire nuts; refer illustration 3
and replace cover.
Note: It is recommended to test the wiring by placing an OHM meter on the connections testing for
possible short or ground. All electrical connections shall be in accordance with the NESC guidelines and
as dictated by local authorities holding proper jurisdiction for local/state and or by U.B.C., and U.M.C.
guidelines for all mechanical means.
6. Run the SO cord to the RO control panel (detailed instructions in the
on page 11).
Illustration 3 - Float Tree Assembly
