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Safety • Specifications • Installation 2
Important Safety Instructions
SAVE THESE INSTRUCTIONS - This manual contains
important instructions that should be followed during
installation, operation, and maintenance of the product.
This is the safety alert symbol. When you see this
symbol on your pump or in this manual, look for one of
the following signal words and be alert to the potential
for personal injury!
indicates a hazard which, if not avoided, will
result in death or serious injury.
indicates a hazard which, if not avoided,
could result in death or serious injury.
indicates a hazard which, if not avoided,
could result in minor or moderate injury.
NOTICE addresses practices not related to
personalinjury.
Carefully read and follow all safety instructions in this
manual and on pump.
Keep safety labels in good condition. Replace missing or
damaged safety labels.
California Proposition 65 Warning
This product and related accessories contain
chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm.
1. Read this manual carefully. Failure to follow these
instructions could cause serious bodily injury and/or
property damage.
2. Check your local codes before installing. You must
comply with their rules.
3. Vent sewage or septic tank according to local codes.
4. Do not install pump in any location classified as
hazardous by National Electrical Code, ANSI/NFPA
70-1990.
Risk of electric shock. Can shock, burn
or kill. During operation, the pump is in water. To
avoid fatal shocks, proceed as follows if pump needs
servicing:
5A. Disconnect power to outlet box before
unpluggingpump.
5B. Take extreme care when changing fuses. Do not
stand in water or put your finger in fuse socket.
5C. Do not modify cord and plug. When using cord and
plug, plug into a grounded outlet only. When wiring
to a system control, connect pump ground lead to
system ground.
6. Do not run pump dry. Dry running can overheat
pump, (causing burns to anyone handling it) and will
void warranty.
7. Pump normally runs hot. To avoid burns when
servicing pump, allow it to cool for 20 minutes after
shut-down before handling it.
8. In normal service, motor should not need oiling.
Motor has been filled at the factory with a special oil.
Installation
(See Figure 1 for Typical Installation instructions.)
NOTICE Pump must be level when operating. If motor is tilted,
internal start/run switch may overheat and damage motor.
Risk of electric shock. Can shock, burn
or kill. Do not lift pump by power cord. See Cord Lift
Warning. Do not hang pump from discharge pipe or
power cord.
1. Install the pump on a solid, level foundation, or
in a sump pit constructed of tile, concrete, steel
or plastic. The recommended minimum diameter
of the sump pit is 18” (46cm) diameter and the
minimum recommended depth is 30” (76cm). Check
local codes for approved materials.
NOTICE Pump should not be installed on clay, earth
or sand surfaces. Clean the area around the pump of
small stones and gravel which could clog the pump.
Keep the pump inlet screen clear.
2. Thread a 2” discharge pipe into the pump 2” NPT
discharge port. Be careful to avoid stripping or
crossing threads.
Pi ping – Effluent Applications
(3/4” or Less Solids)
Piping must be 1-1/2” minimum to carry volume of
pump discharge. Check local codes to determine if a
check valve is required in your system. In cold climates,
check valves are not used to prevent effluent from
freezing in piping.
Performance
Specifications
Model HP Voltage Required (Amps)
Individual Branch Circuit
Delay Fuse Amps
Dual Element Time
3963 1/2 115 20 20
GPH (Liters) At Discharge Ft. of Head
5 (1.5m) 10 (3m) 15 (4.6m) 20 (6.1m) 25 (7.6m)
3963 7320(27,709) 5400(20,441) 2700(10,221) - -
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