Float Switch Assemblies
`
`Installation, Operation and Maintenance Instructions
`Model MF_
`
`Installation Instructions
`
`
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`The float switch assembly is typically mounted in the screened pump vault or effluent screen inside of a septic or dosing tank.
`The assembly is detachable without removal of the screened pump vault or effluent screen. A typical float switch assembly is
`shown below.
`
`
`Each float cable is provided with a color marker. This marker indicates the
`function of the float. Make sure that your float cable color markers corre-
`spond with the wiring diagram provided. lf the wiring diagram does not
`match your float cable marker colors, contact Orenco Systems® Inc. or
`your local dealer for assistance.
`
`Float function
`color marker
`
`Float stem
`
`Adjustable float
`collar
`
`Stainless steel
`set screw
`
`Float
`
`
`
`
`To check for proper float switch operation, move each switch up and down
`and check for interference. Remove the assembly from its holding bracket
`by snapping it out of the holding bracket.
`
`© 2003 Drenco Systems” lnc.
`
`Franklin Electric Co., Inc. “""-2-°'©‘”““
`Page 1 of 4
`Exhibit 1013
`
`MIN-MF-MF—1
`
`Franklin Electric Co., Inc.
`Exhibit 1013
`
`

`
`Installation Instructions (continued)
`
` If any float interferes with another, the float may be adjusted by loosening
`
`
`the stainless steel set screw provided in the float collar. Using a phillips
`screwdriver, slowly back the screw out of the collar to a point at which the
`collar may be adjusted. Be careful not to back the screw completely out of
`the collar. Carefully rotate the collar on the stem until the float switches can
`move freely past one another. Tighten the stainless steel set screw and
`recheck.
`
`Warning: Be careful not to alter the the tether lengths of any of the floats.
`Alteration of the tether length may affect proper operation of the float
`switch assembly.
`
`
`Check the float settings with the project plans and specifications. lfthe set-
`tings need to be adjusted, loosen the set screw as described in step 3.
`
`Adjust the float switches to the desired level and tighten the set screw.
`Make sure float level settings do not violate any state or local regulations.
`
`Note: The float stem provided is the maximum length possible without
`interfering with the pump minimum liquid level or screened pump vault
`intake ports. Never lengthen the float stem without prior approval from
`Orenco. Lengthening of the float stem will void the warranty.
`
`
`Replace the float switch assembly in the holding bracket. Make sure the
`assembly snaps fully into the bracket.
`
`
`To allow for easy removal of a float switch assembly, a 1" diameter handle
`may be added to the top of the float switch assembly. Measure the distance
`from the top of the float switch assembly up to about one foot from grade
`level. Cut a 1" diameter PVC pipe to the measured length and glue it into the
`handle.
`
`
`
`NIN-MF-MF-1
`Rev. 2.0, ©11/04
`Page 2 of 4
`
`© 2003 Orenco Systems*‘ Inc.
`
`

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`Installation Instructions (continued)
`
` When used with an Orenco electrical splice box:
`
`Push the level control wires through the watertight cord grips into the
`electrical splice box. Leave an adequate length of electrical cable coiled
`inside the riser to allow for easy removal of the pump and float switch
`assembly. Do not remove the colored markers or the paper tags from the
`float cables, and do not try to thread the markers and tag through the
`cord grip. Tighten the cord grips by hand, not by tool, then test the tight-
`ness of the cord grips by tugging on each cable. A cable is secure when
`the cord grip istight enough to prevent slippage. Adequate lengths of
`cable should be left within the splice box to allow easy removal for future
`disconnecting and resplicing.
`
`Note: See the splice box instructions (EIN—SB—SB- 1) and
`corresponding splice box diagram for connection instructions.
`
`© 2003 Drenco Systems” lnc.
`
`MIN-MF-MF—1
`Rev. 2.0, © 11/04
`Page 3 of 4
`
`

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`Maintenance Instructions
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`
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`During the annual inspection, follow the testing procedures provided to ensure that the system is operating properly. If a float is
`found to be faulty, either during the annual inspection or during troubleshooting after an alarm condition, see the section below
`titled Removing and Replacing lnoperative Floats.
`
`Removing and Replacing lnoperative Floats
`
`Important: Before doing any work either on the wiring to the level control floats and pump in the vault or in the pump control
`panel, switch the circuit breakers in the panel to their ”0FF”positions; then switch off the power to the system at the service
`entrance panel.
`
`1.
`
`Remove the float assembly from the vault.
`
`2. Using a Phillips screwdriver, remove the stainless steel screws from the splice box lid, being careful not to drop the screws
`into the tank. If the splice box was submerged, or if there is a crack in the conduit, there may be water in the splice box. If
`this is the case, remove water from the splice box with a syringe, sponge, or other appropriate method. Loosen the cord grip
`at the splice box and verify the appropriate splice for the float. Unscrew the wire nuts and remove the float.
`
`3.
`
`4.
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`Remove the inoperative float and replace it with a new one. Push the float cable through the watertight cord grip into the
`electrical splice box. Leave an adequate length of electrical cord coiled inside the riser to allow for easy removal of the float
`assembly. Do not remove the colored markers or the paper tags from the float cords, and do not try to thread the markers and
`tag through the cord grip. Tighten the cord grip by hand, not by tool, then test the tightness of the cord grip by tugging on the
`cord. A cord is secure when the cord grip is tight enough to prevent slippage. An adequate length of cord should be left
`within the splice box to allow for easy removal for future disconnecting and resplicing.
`
`Refer to document EIN-SB—SB-1 for instructionsto splice the float wire to the wire from the control panel. Attach the float
`wires using the waterproof wire nuts. It is necessary to replace this wire nut with a new watertight wire nut. Always use
`watertight wire nuts or heat shrink splice kits for all connections!
`
`5. Replace the float and collar and return the assembly to the pump vault.
`
`6. Reconnect power and test the unit.
`
`NIN-MF-MF-1
`Rev. 2.0, © 11/04
`Page 4 of 4
`
`© 2003 Orenco Systemsf‘ lnc.