Liberty Pumps HT450 Serie Manuel D'installation page 2

1.
General Information – All Models
Before Installation, read the following instructions carefully. Each Liberty pump is individually factory tested to assure
proper performance.
providing years of trouble-free service.

Risk of electric shock. Always disconnect the pump from the power source before handling or making adjustments.

The electrical connections and wiring for a pump installation should only be made by qualified personnel.

This pump is supplied with a grounding conductor and grounding-type attachment plug. To reduce the risk of electric
shock, be certain that it is connected only to a properly grounded, grounding-type receptacle.

DO NOT bypass grounding wires or remove ground prong from attachment plugs.

DO NOT use an extension cord.

This pump requires a separate, properly fused and grounded branch circuit. Make sure the power source is properly
sized for the voltage and amperage requirements of the pump, as noted on the nameplate.

The electrical outlet shall be within the length limitations of the pump power cord, and at least 4 feet above floor level
to minimize possible hazards from flood conditions.

The installation must be in accordance with the National Electric Code, Uniform Plumbing Code, International
Plumbing Code, as well as all applicable local codes and ordinances.

Sump and sewage pumps often handle materials which could cause illness or disease. Wear adequate protective
clothing when working on a used pump or piping.

Never enter a pump basin after it has been used. Sewage and effluent can emit several gases which are poisonous.

Keep clear of suction and discharge openings. To prevent injury, never insert fingers into pump while it is plugged in.

DO NOT use this product for flammable or corrosive liquid.

DO NOT use this product in applications where human contact with the pumped fluid is common (such as swimming
pools, fountains, etc.)

NEVER dispose of materials such as paint thinner or other chemicals down drains, as they can chemically attack and
damage pump components, potentially causing product malfunction or failure.
 DO NOT use pumps in water over 180F (82C).
 DO review applicable codes concerning maximum allowable temperature of water discharged into drain systems.
 DO NOT use pumps in mud, sand, cement, oil or chemicals.
 DO NOT modify the pump in any way.
 DO NOT lift or carry pump by power cord.
DO NOT remove any tags from pump or cords.

 If pump is installed during construction before power is available, it must be protected from the environment to prevent
water from entering through the cord plug end, etc.
2.
Sump Pit – All Models
A sump pit not less than 14" in diameter is recommended. A larger diameter pit is preferred, as it allows for
1.
longer pump cycling and reduced switch cycling. The depth of the pit should be at least 20".
2. If the pit is not already enclosed on the bottom, provide a hard and level bottom of bricks or concrete. DO NOT
place the pump directly on earth, gravel or debris, since this can cause excessive wear of the impeller and
possible jamming. For proper function, ensure that the pump is level after installation. A sump pit cover is also
suggested for safety, and to prevent foreign objects from entering the pit.
By closely following these instructions, potential operating problems should be eliminated,
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