Little Giant 20GH-RFK Instruction Manual

Little Giant Pump Company
P.O. Box 12010
Oklahoma City, OK 73157-2010
405.947.2511 • 405.947.8720
IMPORTANT: Read all instructions in this manual completely, as well as, the included
manual for the pump, before operating. Check local codes and requirements before
installing. Manuals should be retained for future reference.
Please Note: Due to continuous product improvement programs, changes to the product
may occur. As a result of such programs, Little Giant Pump Company reserves the right to
change products without prior written notification.
INTRODUCTION:
Thank you for your purchase of a Little Giant Pump Company Retrofit Kit. We hope that
this kit will provide you with all of the essentials to make this installation as trouble free as
possible. Before beginning please verify the following:
1. Check the kit to ensure all components are included (See Fig.1) or are not
damaged. Occasionally, damage can occur during shipping. If anything is
noted missing or any components are damaged, please notify the
representative where the unit was purchased for assistance in repair or
replacement.
2. Make sure the pump electrical supply circuit is equipped with fuses or circuit
breakers of proper capacity. A separate branch circuit is recommended, sized
according to the "National Electric Code" for the current shown on the pump
nameplate and literature.
ELECTRICAL NOTE: The 20GH-CIA-RFS pump requires the use of a circuit breaker rated
for 25 amps; therefore, please be sure to use correct breakers for operation of pump.
REPLACEMENT INSTALLATION:
WARNING – ELECTRICAL PRECAUTION – Electrical wiring and enclosures
must be in accordance with the "National Electric Code" and any other
applicable state and electrical requirements. Before servicing a pump always
shut off the main power breaker – making sure you are wearing insulated
protective sole shoes and not standing in water. Under flooded conditions,
contact your local electrical company or a qualified licensed electrician for
disconnecting electrical service prior to pump removal. Refer to the original
installation/service manual for any precautions that need to be obeyed. (For
example, the pump could have more than one power source or connection.)
1. After the power is shut off, open electrical enclosure or electrical disconnect to
separate pump power lead, and signal leads. Coil the wires and lay them to the
side and keep them dry.
2. Check electrical panel. LGPC's 20GH-CIA-RFS requires the use of circuit
breakers rated at 25 amps. Replace if necessary.
3. Locate riser and remove basin lid from current unit. (Set aside)
4. If basin is flooded, drain basin down to intake level, by either pumping out with
external pump or vacuum. All septic should be disposed of in accordance with
local, state and national codes.
5. Disconnect Electrical Quick Disconnect plug hanging inside the basin, if
applicable.
6. Remove bolts securing current unit if applicable.
7. Close valve on current unit.
8. Secure rope or lifting cable to j-hooks on current unit.
9. Lift unit out and set aside.
10. Remove packaging from LGPC kit. (Retain assembly pack and instructions.)
11. Thoroughly read instructions for pump operation, so you will become familiar
with the operation of this pump.
12. Measure distance on discharge neck on old unit and record. The distance
measured should be the distance from the bottom of the fitting to the bottom of
the plate. (See Fig. 1).
13. Assemble LGPC discharge neck fitting to discharge pipe, which is protruding
through plate. (Note apply Teflon tape to form an adequate seal.) Fitting
should be oriented away from the center of the plate once tightened
completely. (See Fig. 1).
14. Measure distance from bottom of discharge to bottom of plate on LGPC unit
and record.
15. Compare distances and adjust center locknut (self-locking pin will need to be
removed to make this adjustment) on suspension pipe until measurements in
steps 12 and 14 are equal (See Fig. 2).
16. Replace self-locking pin. (Top and Bottom Locknuts will need to be aligned for
pin to be reinstalled.)
INSTRUCTION MANUAL
20GH-RFK
Note bottom nut can be removed or screwed all the way down on the
suspension pipe to move out of the way. This nut is mainly used for assembly
of unit outside of basin. Removing or screwing the bottom nut all the way
down will allow adjustments to be made on the unit height from the topside of
plate.
NOTE: Self-locking pin is used to stop vibration of locknut, which could possibly cause the
locknut to loosen and pump to lower. Therefore, it is highly recommended to use a
self-locking pin.
17. Remove nameplate from cord (set aside see Step 35 for Instructions).
18. Run electrical cords through plate. Note: Do not remove ty-raps securing
pump power and pump control float cords to suspension pipe. These cords
are tied to pipe so that they will not hinder the operation of the high water alarm
float. 1.) Pump power cord will go through ¾" strain relief, 2.) Pump control
float cord will go through one of the ½" strain reliefs and 3.) The high water
alarm float cord will pass through the other ½" strain relief.
19. Pull all excess cordage through plate.
20. Check pump control float settings for proper on/off levels (See pump
instruction sheet (Fig. 6) for further instruction on this, if applicable). The tether
length should be 9 inches from the loop clamp binding the cord to the top of
the float.
21. Check high water alarm for height setting. This should be 12 inches from the
bottom of the plate to the top of the float. Also check tether from the high water
alarm weight to the top of the float, this should be set at 7 inches from bottom
of plate to top of weight. (See Fig. 1 for clarification.) NOTE: Float switches
must be positioned so that they will be free of any object in the tank or the
tank walls. If adjustments are made to either one, be sure to check that
float will activate and not hit plate before switching on.
22. If using junction box supplied with unit, which is mounted on the plate, run
each cord into respective strain reliefs in box and wire according to local, state
and NEC codes. Unit can be wired into most existing situations, provided the
correct wiring is provided. (See Fig. 3 for wiring diagram of unit and/or pump
instruction sheet for wiring of pump and pump control float.) Make sure there
is a sufficient amount of existing power/control/alarm cord to splice into the
Little Giant power/control/alarm cords. Use included wire nuts for connections,
which are designed to make the connections more watertight.
NOTE: Do not cut pump power cord to a measurement of less than 3' or warranty on
pump will be voided. Excess cordage is given to allow connection of different junction box
location or different junction box. It may be best to loop excess power cords on top of unit
after wiring is complete for possible future use.
23. Check to be sure all fittings are tight and secure any excess cordage, if
applicable, on top of unit.
24. Apply gasket tape to bottom side of plate at the perimeter.
25. Use an awl or similar tool to poke holes through gasket tape where the bolt
holes on perimeter are located. This will allow the bolts to be placed through
the cover and into basin.
26. Apply some type of lubricant to o-rings on discharge neck to assist component
sliding into place.
27. Use rope that is provided to lift LGPC kit into basin and lower into place.
28. Align tabs on plate to slots on basin.
29. Align discharge fitting to ball valve on basin and lower in completely. Unit
should rest on plate with discharge fitting nesting into the existing ball valve
fitting.
30. Open valve so that handle/latch encompasses LGPC discharge fitting. If
problems exist with opening latch, adjustments to height setting will need to be
made by adjusting locknut on top of unit, (refer to steps 12 – 16 for this operation.)
31. Install 6 bolts (included) through plate and into basin and tighten.
32. Restore electricity to panel and pump.
33. Fill basin with water to check operation of pump. If a problem arises with pump,
see pump troubleshooting guide located in the pump instruction manual.
34. Replace basin lid and lock unit, if applicable.
35. Affix pump nameplate included to the existing control box or panel so that the
pump can be identified.