6 | EN
Copyright © Liberty Pumps, Inc. 2020 All rights reserved.
5755000K
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.
Explosion hazard during installation. PVC cleaners, primers,
and cements can release explosive vapors. These
heavier-than-air vapors can accumulate in the tank. The heat
of soldering or sweating copper or other metal pipe can
ignite these vapors causing a violent explosion. If the unit is
to be connected to copper discharge or vent piping, all
solvent-welded PVC joints must be allowed to cure a
minimum
of 24 hours. The access cover must be removed to
allow the tank to be thoroughly ventilated prior to sweating
copper pipe near the unit.
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.
Macerating unit must be located on same floor as connecting
fixtures.
Layout:
The bathroom layout should be designed prior to
installation. Make certain the power source (GFCI receptacle) is
within range of the macerator’s 8 ft power cord. The GFCI
receptacle shall be 40 inches away (in a straight line) from a
shower or bathtub. For basement installation, the receptacle shall
be 48 inches from the floor.
Power Cord:
The power cord can be configured to exit the unit on
either the left or right side. If the power cord will exit the left side
of the macerator, the vent flange must be removed so the cord
can be routed between the positioning clips. Reinstall vent flange
after routing the cord. Do not use an extension cord. If the
electrical power receptacle (outlet) is in close proximity to the
macerator, any extra power cord can be coiled and tucked away in
the access cover located under the right decorative cover.
Easy Access:
The unit should be accessible and removable in the
event of required maintenance. During installation, a full port ball
valve should be installed near the discharge flange to allow easy
service of the unit. If possible, the right side of the macerator
should remain unobstructed. The access cover allows access to
the internal mechanisms. In the event of a jam, the decorative
cover as well as the access cover will need to be removed from the
macerator and working room to do so would be beneficial.
Water Supply:
The water supply line for the toilet tank is located
on the left side. When roughing in, allow for the macerator.
Discharge:
Never discharge directly into an open drain, fixture,
manhole or rainwater drainpipe. It is illegal, as it constitutes a
health hazard. Only direct connections into sanitary waste systems
shall be acceptable.
Auxiliary Ports:
Auxiliary inlet ports are located on either side
toward the back of the macerator tank. These ports can accept
waste from sink or tub/shower. A sink should be plumbed into
one of the auxiliary inlets and not the discharge line of the
macerator even if elevations would allow such an installation. The
discharge line is pressurized and the plumbing system needs to
accommodate this.
Freezing:
Ensure all pipework susceptible to freezing is adequately
insulated or heated. In unheated buildings, the toilet, piping, and
macerating unit must be properly winterized. Use plumbing
antifreeze or drain completely. The battery should also be
disconnected.
Discharge Extension:
An optional discharge extension [P/N
K001184 sold separately] allows the macerator to be positioned
behind a wall. For example, the macerator could be positioned on
the floor of a linen closet or utility room. Do not fully frame unit
into a wall as access to macerator must be maintained.
Toilet Placement:
The toilet hold down fasteners should be
located 16 inches from the wall and spaced 7 inches apart. This
assumes a typical baseboard of 3/4” x 5-1/2” with 3/4” quarter
round. Actual baseboard dimensions must be taken into account
during the installation and thus rough-in dimensions may change.
Tub/Shower:
Water height will be 4½ inches in the macerator
tank before the unit starts pumping. A shower stall floor must be
well above this level. Liberty Pumps recommends at least 6–8
inches to ensure proper shower drainage and prevent any
backflow.
Figure 1. Typical Applications
Pipework:
All pipework should be copper, PVC, or CPVC. Do not
use flexible piping. Support hangers should not be less than 4 ft
apart to prevent pipe rattling.
Pipe Supports:
All sanitary pipework must be supported in
accordance with the pipe manufacturer’s recommendations.
Avoid dipping or trapping, which may cause the buildup of
residual solids and subsequent blockage.
Bends:
Wherever possible, long sweeping bends should be used.
Do not use short elbows. If sweeping 90° elbows are not available,
use two 45° elbows to make a 90° turn.
Shut-off Head:
The macerator has a shut-off head of 36 ft. All
frictional losses from horizontal runs and elbows need to be
accounted for. The minimum flow rate for 1” PVC Schedule 40
pipe is 5 gal/min compared to 3 gal/min for 3/4” PVC pipe.
RISK OF FIRE
RISK OF SERIOUS INJURY OR DEATH
Tub/shower should be installed on
a riser to accommodate the p-trap.
All fixtures must be properly vented per applicable local plumbing code.
