LibertyPumps Duplex Sewage Grinder Systems 
Models
Safety Guidelines
- This safety alert symbol is used in the manual and on the pump to alert of potential risk for serious injury or death.
- This safety alert symbol identifies risk of electric shock. It is accompanied with an instruction intended to minimize potentialrisk of electric shock.
- This safety alert symbol identifies risk of fire. It is accompanied with an instruction intended to minimize potential risk of fire.
- This safety alert symbol identifies risk of serious injury or death. It is accompanied with an instruction intended to minimize potential risk of injury or death. Warns of hazards which, if not avoided, will result in serious injury or death.
- Warns of hazards which, if not avoided, could result in serious injury or death. Warns of hazards which, if not avoided, could result in minor or moderate injury. Signals an important instruction related to the pump. Failure to follow these instructions could result in pump failure or property damage.WARNING: Read every supplied manual before using pump system. Follow all the safety instructions in manual(s) and on the pump. Failure to do so could result in serious injury or death.
Safety Precautions
RISK OF ELECTRIC SHOCK
- Accidental contact with electrically live parts, items, fluid, or water can cause serious injury or death.
- Always disconnect pump(s) from power source(s) before handling or making any adjustments to either the pump(s), the pump system, or the control panel.
- All installation and maintenance of pumps, controls, protection devices, and general wiring shall be done by qualified personnel.
- All electrical and safety practices shall be in accordance with the National Electrical Code®, the Occupational Safety and Health Administration, or applicable local codes and ordinances.
- Do not remove cord and strain relief, and do not connect conduit to pump.
- Pump shall be properly grounded using its supplied grounding conductor. Do not bypass grounding wires or remove ground prong from attachment plugs. Failure to properly ground the pump system can cause all metal portions of the pump and its surroundings to become energized.
- Do not handle or unplug the pump with wet hands, when standing on damp surface, or in water unless wearing Personal Protective Equipment.
- Always wear dielectric rubber boots and other applicable Personal Protective Equipment (PPE) when water is on the floor and an energized pump system must be serviced, as submerged electrical connections can energize the water. Do not enter the water if the water level is higher than the PPE protection or if the PPE is not watertight.
- Do not lift or carry a pump or a float assembly by its power cord. This will damage the power cord, and could expose the electrically live wires inside the power cord.
- The electrical power supply shall be located within the length limitations of the pump power cord, and for below grade installations it shall be at least 4 ft (1.22 m) above floor level.
- Do not use this product in applications where human contact with the pumped fluid is common (such as swimming pools, fountains, marine areas, etc.).
- Protect the power and control cords from the environment. Unprotected power and control (switch) cords can allow water to wick through ends into pump or switch housings, causing surroundings to become energized.
- Single-phase 208/230V pumps shall only be operated without the float switch by using the circuit breaker or panel disconnect.
- Some products may have internal capacitors that could cause shock. Avoid contact with plug ends after removing from energy source.
RISK OF FIRE
- Do not use an extension cord to power the product. Extension cords can overload both the product and extension cord supply wires. Overloaded wires will get very hot and can catch on fire.
- This product requires a separate, properly fused and grounded branch circuit, sized for the voltage and amperage requirements of the pump, as noted on the nameplate. Overloaded branch circuit wires will get very hot and can catch on fire. When used, electrical outlets shall be simplex of the appropriate rating.
- Do not use this product with or near flammable or explosive fluids such as gasoline, fuel oil, kerosene, etc. If rotating elements inside pump strike any foreign object, sparks may occur. Sparks could ignite flammable liquids.
- These pumps are not to be installed in locations classified as hazardous in accordance with the National Electric Code®, ANSI/NFPA 70.
- Sewage and effluent systems produce and may contain flammable and explosive gases. Prevent introduction of foreign objects into basin as sparks could ignite these gases. Exercise caution using tools and do not use electronic devices or have live, exposed electrical circuits in or around basins, open covers and vents
RISK OF SERIOUS INJURY OR DEATH
- Energizing the control panel or breaker for the first time is potentially dangerous. Licensed electrical personnel should be present when the panel or breaker is energized for the first time. If faults caused by damage or poor installation practices have not been detected, serious damage, injury or death can result when power is applied.
- Do not modify the pump/pump system in any way. Modifications may affect seals, change the electrical loading of the pump, or damage the pump and its components.
- All pump/pump system installations shall be in compliance with all applicable Federal, State, and Local codes and ordinances.
- Do not allow children to play with the pump system.
- Do not allow any person who is unqualified to have contact with this pump system. Any person who is unaware of the dangers of this pump system, or has not read this manual, can easily be injured by the pump system.
- In 208/230V installations, one side of the line going to the pump is always “hot”, whether the float switch is on or off. To avoid hazards, install a double pole disconnect near the pump installation.
- Vent basin in accordance with local code. Proper venting of sewer and effluent gases alleviates poisonous gas buildup and reduces the risk of explosion and fire from these flammable gases.
- Wear adequate Personal Protective Equipment when working on pumps or piping that have been exposed to wastewater. Sump and sewage pumps often handle materials that can transmit illness or disease upon contact with skin and other tissues.
- Do not enter a pump basin after it has been used. Sewage and effluent can emit several gases that are poisonous.
- Do not remove any tags or labels from the pump or its cord.
- Keep clear of suction and discharge openings. To prevent injury, never insert fingers into pump while it is connected to a power source.
- Do not use this product with flammable, explosive, or corrosive fluids. Do not use in a flammable and/or explosive atmosphere as serious injury or death could result.
- This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov.
- A grinder pump contains metal parts that rotate at high speeds. Be careful around pump base while power is connected. Make sure that the pump is either in the tank or clear from people and wires when in operation.
CAUTION:
- This pump has been evaluated for use with water only.
- Wear Personal Protective Equipment as exposed bottom has sharp edges.
NOTICE:
- Do not use pumps with fluid over 140°F (60°C). Operating the pump in fluid above this temperature can overheat the pump, resulting in pump failure.
- Do not use pump system with mud, sand, cement, hydrocarbons, grease, or chemicals. Pump and system components can be damaged from these items causing product malfunction or failure. Additionally, flooding can occur if these items jam the impeller or piping.
- Do not introduce any consumer item that is not toilet paper into a non-grinder (dewatering, effluent, sewage) pump/pump system. This includes, but is not limited to the following: feminine products, wipes, towels, towelettes, dental floss, swabs, pads, etc. Items such as these put the pump under undo strain and can result in pump/pump system failure. Additionally, it creates conditions for discharge line blockage.
- Do not run dry.
- The Uniform Plumbing Code® states that sewage systems shall have an audio and visual alarm that signals a malfunction of the system, to reduce the potential for property damage.
- Do not exert heavy pressure or run heavy equipment on the backfill material as this could cause the tank to collapse.
- Do not overtighten bolts.
- Do not position the pump float directly under the inlet from drain tile or in the direct path of any incoming water.
- 1100-Series systems are not suitable for outdoor applications.
- 680-Series systems are not suitable for outdoor applications.
- Unless specifically noted, covers are not traffic rated.
Introduction
Before installation, read the following instructions carefully. Each pump is individually factory tested to ensure proper performance. Closely following these instructions will eliminate potential operating problems, assuring years of trouble-free service. ProVore® grinder systems (including ProVore 1100-Series) easily handle solids and sewage waste found in typical residential applications. Their unique cutter system grinds difficult wastes and then pumps it through a 1-1/2” or 2” discharge line. The ProVore 680-Series system is supplied with a 2” discharge outlet. Do not increase this pipe size above 2” as adequate flow rates may not be achieved for proper operation. Discharge sizes may be reduced to 1-1/2” or 1-1/4”. Consult Liberty Pumps for proper pipe and system sizing.
Pro-Series systems come with an integral control system with alarm and QuickTree® float system. Pump and alarm floats are pre-set on the QuickTree system at proper operating levels. The QuickTree system is located under a separate access cover for ease of maintenance and service. Floats for both pump activation and alarm are mounted on a stainless steel tree (rod), separate from the pump. There is no need to disconnect plumbing or remove the pump to inspect service or replace floats.
QuickTree floats are preset at the factory for optimum operating levels and should not be adjusted.Pro-Series systems also feature a clear disposable construction cover designed to protect the system during rough-in and masonry work. The protective cover should remain in place until finish plumbing; however, it can be removed and reinstalled if required. The cover is snapped into the threaded ports of the discharge and vent. To remove the clear cover, simply pull upward, disengaging it from the discharge and vent holes. 1100-Series systems (non-grinder types) feature a heavy-duty basin with 4” inlet hub pre-assembled to basin. Floats are tethered to a removable standpipe/access cover assembly. The cover is equipped with a 2” or 3” discharge and 2” or 3” vent flange. Was the current system sized by a professional? Minimum fluid flows are required in sewage applications. Consult Liberty Pumps for proper pump sizing prior to installation.
Basin Dimensions
Cover Descriptions
In-Ground Basin Installation
- 1100-Series systems are not suitable for outdoor applications.
- 680-Series systems are not suitable for outdoor applications.
- Unless specifically noted, covers are not traffic rated
Excavation
Excavate the hole as small as possible, with a minimum recommended 8” diametrical clearance around the tank. Never place the basin directly in contact with rocks or other sharp objects. Place only fine, 1/8” to 3/4” pea gravel or 1/8” to 1/2” washed, crushed stone as bedding between the basin and the hole walls. Do not use sand or native soil as backfill. Properly compact underneath the basin to provide a solid, level base that can support the weight of the filled basin. It is recommended that the top lip of the basin be level with the finished floor
Initial Backfill
Use only fine, 1/8” to 3/4” pea gravel or 1/8” to 1/2” washed, crushed stone around the bottom of the basin to hold it in place. Do not use sand or native soil as backfill. Make the inlet connection as required for particular basin.
Inlet Connection
Pro-Series basins have a 4” inlet molded to the side of the tank. This inlet is sized to accept a 4” no-hub type coupling. 1100-Series basins use a hub with a 4” seal for inlet connection. Connect the gravity drainage line from the fixtures to this hub.
Final Backfill
Large rocks, clods, and foreign objects must be kept out of the backfill material. Only fine, 1/4” to 3/4” pea gravel, or 1/8” to 1/2” washed, crushed stone is recommended. Do not use sand or native soil as backfill. Mound the backfill slightly and allow for natural settling. Provide access to the basin cover for maintenance and service.Note: Do not exert heavy pressure or run heavy equipment on the backfill material as this could cause the tank to collapse
Installation
RISK OF ELECTRIC SHOCK
- All installation and maintenance of pumps, controls, protection devices, and general wiring shall be done by qualified personnel.
- All electrical and safety practices shall be in accordance with the National Electrical Code®, the Occupational Safety and Health Administration, or applicable local codes and ordinances.
NOTICE:
- 1100-Series systems are not suitable for outdoor applications.
- 680-Series systems are not suitable for outdoor applications
- The ProVore680 and 1102/PRG systems are supplied with dual 2” discharge outlets. Do not increase the pipe size above 2” as adequate flow rates may not be achieved for proper operation. Discharge sizes may be reduced to 1-1/2” or 1-1/4”. Contact Liberty Pumps with questions regarding proper pipe sizes and flow rates.
Electrical Connections
With main power disconnected, complete pump and control wiring connections per manufacturer’s wiring diagrams included with the control panel as applicable. Check all wires for unintentional grounds after the connections are made
Discharge
- ProVore 680 and 1100-Series grinder systems: discharge size can be reduced to 1-1/4”.
- Pro680 and 1100-Series non-grinder systems: discharge size must not be smaller than 2”.
Using an adapter, connect the discharge pipe to the threaded 2” or 3” port provided on the cover. Install the remaining discharge line. A union should be installed just above the cover to facilitate pump removal. A check valve is required after the union to prevent the backflow of liquid after each pumping cycle. A gate or ball valve should follow the check valve to allow periodic cleaning of the check valve or removal of the pump. The remainder of the discharge line should be as short as possible with a minimum number of turns, to minimize friction head loss. Contact Liberty Pumps or other qualified person if there are questions regarding proper pipe size and flow rates. Figure 5 shows a typical installation. Variations may apply to actual installation
Vent
A 2” or 3” vent connection is provided on top of the 1100-Series unit. The P680-Series vent is on top of the tank. The vent must be piped to the existing building vent, or extended outside on its own standpipe. The vent size must be in accordance with applicable codes, but not less than the discharge size.
Access Cover and Float Switch Control
Pro680-SeriesLiberty Pumps Pro680-Series systems feature QuickTree technology. The QuickTree float system uses a stainless steel mounting rod (tree) and specially designed cord clamping brackets to affix the pump floats in the system. All floats are preset at the factory at optimum operating levels and should not be adjusted. Field adjusting floats may cause improper activation or turn-off of the pump and optional alarm. QuickTree removal and float inspection: The QuickTree system is located under the separate access cover to help ease inspection, service, and replacement of a float. To inspect the floats, simply unbolt the access cover and lift out the QuickTree assembly from its holder. There is no need to disconnect plumbing or remove the pump. Pro680-Series systems feature a manual pump (with no switch attached directly to the pump). Operation of the pump is accomplished by the QuickTree system. Re-inserting the QuickTree: After service or inspection of the floats, re-insert the QuickTree into its holder. It is important that cords from the pump motors and float switch, and optional alarm float are properly sealed in the specially designed rubber sealing channels under the access cover. Proper sealing is required to keep sewer gas from leaking from the system. Place the cords securely in the rubber channels as shown in Figure 6 [left], being careful to remove excessive cord “slack” from inside the system.
IMPORTANT: Three cord channels are provided. For systems without the alarm option, only two channels are used and the third must be “plugged” with an attached rubber plug seal. See Figure 6 [right]. If the alarm cord is present, all three channels will be used. All rubber cover gaskets are permanently attached and do not require replacement.
QuickTree Settings
Table 1. Tether Length (Switch Position to Clamp)
| Rod Position | Alarm Float | Pump Control Float |
| 1 | 3-1/2” | |
| 2 | ||
| 3 | 3” | |
| 4 |
When servicing the QuickTree, place the switch cord into the trough or channel and then slip the stainless steel rod through the clamp. Tighten the screw with a Phillips screwdriver, being careful not to overtighten. Flats have been stamped on the rod to designate float position, and the screw should be tightened onto the flat. Tether length is the amount of cord between the clamp and float.1100-SeriesThe 1100-Series cover provides access to the float and alarm cord entry/exit seals. Floats are pre-set and system may contain three or four floats based on selected options.
Control Panel
P680-Series systems are connected to a controller that monitors the operation of the pumps. The controller will automatically alternate between the two pumps each cycle to maintain equal wear. It will also monitor for high water conditions and alarms if necessary. The controller has visual indicators that show the operation of the sump as well as operator controls to test functionality. The controller will also identify a non-functioning component. For complete operation, refer to the user manual for the controller.
1100-Series System ControllerThe 1100-Series system requires its own separate controller. Refer to the Installation and Operation manual that came with the unit for proper operation.
Supplemental Installation Instructions
PRO680XL-Series 10′ Stack Test BasinsXL-Series sewage ejector basins are designed to withstand the 10′ stack test required by some municipalities. Proper installation of the specified cover flange is essential to ensure that the test is met. Strict adherence to these instructions is required. Under no circumstances should the cover be installed in a manner inconsistent with these instructions.
Types of SystemsXL-Series basins are available as fully assembled systems complete with pump and discharge piping, as basin and cover assembly kits with no pump or plumbing, and as basins only. Follow the instructions below, as applicable, to correspond to the specific type of system.
Basin InstallationFor all systems, refer to the primary instructions supplied with this ejector system or basin for excavating the pit, plumbing connections, and backfilling.If the top of the basin is below grade, Basin Extension X8-D is available from Liberty Pumps to increase the height by 8”. The maximum burial depth is 16” with respect to the top of the basin. Consult Liberty Pumps for more information.
Installing the Pump in the XL-Series Basin or XL Basin and Cover Assembly Kit
- Liberty Pumps XL-Series basins, purchased separately, will require the appropriate 16-bolt Pro-Series cover assembly to make an effectively sealed ejector system. Contact Liberty Pumps customer service for the proper cover for the application.
- Size the length of the discharge piping to reach from the discharge of the pump to be within the discharge pipe socket with integral lip seal on the underside of the Pro-Series cover. Liberty Pumps sewage pumps utilize a 17-1/2” long TOE nipple for 680XL-Series Basins. Install the pipe into the threaded discharge of the pump.
- Lower the pump into the basin, fitting the pump legs into the torque stops.
- Insert power cord for the pump—and the piggyback switch cord, if so equipped—through the underside of the inspection cover hole and position cover over pipe nipple while aligning the bolt holes. Sealant (such as silicone) can be applied on both sides of the rubber gasket surface to ensure proper sealing. Use sixteen 1/4-20 UNC bolts and washers to secure cover to the basin. Tighten bolts to 40 inch-pounds. Do not overtighten bolts. The soft, integral gasket will conform to the top of the tank. The bolts may be re-torqued up to 60 inch-pounds to seal any leaks that may occur during a 10′ stack test.
- Liberty Pumps recommends the use of manual type pumps and the appropriate Liberty Pumps QuickTree Switch Kit for mounting of pump control and alarm floats. Contact customer service for ordering information. Install the QuickTree Kit per instructions included. Liberty Pumps automatic type pumps with piggyback float switches may also be used. Lay the power cable and switch cable in the grooves in the inspection cover recess as shown in the primary instructions included with this system. Attach the inspection cover to the main cover using supplied bolts and washers. Sealant (such as silicone) can be applied on both sides of the rubber gasket surface to ensure proper sealing. Tighten the bolts furthest away from the power cord grooves first, torquing to 40 inch-pounds. Do not overtighten bolts. The soft, integral gasket will conform to the top of the cover and power cords. The bolts may be re-torqued up to 60inch-pounds to seal any leaks that may occur during a 10′ stack test.
Operation
Refer to the Startup and Operation sections provided in the supplied pump, control panel, alarm manuals as applicable.
Maintenance and Troubleshooting
Always disconnect pump(s) from power source(s) before handling or making any adjustments to either the pump(s), the pump system, or the control panel.
Refer to the Maintenance and Troubleshooting sections provided in the supplied pump, control panel, alarm manuals as applicable.For further questions, contact customer service at 800-543-2550 or [email protected]
Warranty
Liberty Pumps Wholesale Products Limited WarrantyLiberty Pumps, Inc. warrants that Liberty Pumps wholesale products are free from all factory defects in material and workmanship for a period of three (3) years from the date of purchase (excluding batteries). The date of purchase shall be determined by a dated sales receipt noting the model and serial number of the pump. The dated sales receipt must accompany the returned pump if the date of return is more than three years from the date of manufacture noted on the pump nameplate.The manufacturer’s sole obligation under this Warranty shall be limited to the repair or replacement of any parts found by the manufacturer to be defective, provided the part or assembly is returned freight prepaid to the manufacturer or its authorized service center, and provided that none of the following warranty-voiding characteristics are evident:
The manufacturer shall not be liable under this Warranty if the product has not been properly installed, operated, or maintained per manufacturer instructions; if it has been disassembled, modified, abused, or tampered with; if the electrical cord has been cut, damaged, or spliced; if the pump discharge has been reduced in size; if the pump has been used in water temperatures above the advertised rating; if the pump has been used in water containing sand, lime, cement, gravel, or other abrasives; if the product has been used to pump chemicals, grease, or hydrocarbons; if a non-submersible motor has been subjected to moisture; or if the label bearing the model and serial number has been removed.Liberty Pumps, Inc. shall not be liable for any loss, damage, or expenses resulting from installation or use of its products, or for indirect, incidental, and consequential damages, including costs of removal, reinstallation or transportation.There is no other express warranty. All implied warranties, including those of merchantability and fitness for a particular purpose, are limited to three years from the date of purchase. This Warranty contains the exclusive remedy of the purchaser, and, where permitted, liability for consequential or incidental damages under any and all warranties are excluded.
7000 Apple Tree AvenueBergen, NY 14416ph: 800-543-2550fax: 585-494-1839www.LibertyPumps.com
References
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