Installation / Operation
INSTALLATION
Do not use power cord to lift motor. Always
use handle.
1. Pump should be located and should rest on level solid
foundation. Do not suspend pump by means of dis-
charge pipe or power cord. Keep pump inlet screen
clear.
2. Thread outlet pipe into pump body carefully to avoid
stripping or crossing threads.
a. To install with garden hose, install adapter provid-
ed with pump.
NOTICE: To keep friction as low as possible, hose
must be 5/8" or larger. Keep hose as short as pos-
sible.
b. To install with rigid pipe, use plastic pipe. Wrap
thread with Teflon tape or use Plasto Joint Stik*.
Screw pipe into pump hand tight +1 - 1-1/2 turns.
3. If, in your application, backflow is a problem when the
pump stops, prevent it by installing a 1" NPT check
valve in the pump discharge.
4. Power Supply: Pump is designed for 115V., 60 HZ.
operation and requires an individual branch circuit of
15 amperes or more capacity. It is supplied with a
3-wire cord set with grounding-type plug for use in
a 3-wire, grounded outlet. 3 wire extension cord, of
at least 14 AWG (2mm
) size is suggested, with larger
2
sizes for runs over 25 ft (7M). For safety, pump should
always be electrically grounded to a suitable electrical
ground such as a grounded water pipe or a properly
grounded metallic raceway, or ground wire system. Do
not cut off the round grounding prong.
The pump motor is equipped with auto-
matic resetting thermal protector and
may restart unexpectedly. Protector tripping is indi-
cation of motor overloading as a result of operating
pump at low heads (low discharge re striction),
excessively high or low voltage, inadequate wiring,
incorrect motor connections, or a defective motor or
pump.
* Lake Chemical Co., Chicago, Illinois
For parts or assistance, call Master Plumber Pump Customer Service at
OPERATION
Risk of burns or death from electric shock.
Do not handle pump or pump motor with
wet hands or when standing on wet or damp surface, or
in water. Disconnect power from pump before handling,
servicing, or attempting to repair pump.
The pump is fully automatic in operation. The "smart" con-
troller starts the pump every 2-1/2 minutes and causes it
to run for 5 seconds. If it senses that there is no water to
the pump, it stops. If it senses water, it continues to run
until the water is pumped down to 1/4" deep, and then it
stops. It then goes into a 7-minute quick-detection cycle,
starting 4 times the first minute, twice the second min-
ute, and once a minute for the next 5 minutes. If by the
last check it has not detected water, it resumes its cycle
(running 5 seconds every 2-1/2
minutes) until it senses water again.
NOTICE: When you plug the pump into the wall outlet,
it will start and run for 5 seconds. It will then cycle as
described above.
If the unit is put in the water and started, interrupt-
ing the water flow into the pump during the 5-second
water-sensing run will cause it to wait 2-1/2 minutes
before restarting (instead of 15 seconds).
1. The motor is equipped with an automatically resetting
thermal overload protector. If the motor gets too hot,
the overload protector will stop the motor before it is
damaged. When the motor has cooled sufficiently, the
overload protector will reset itself and the motor will
restart.
NOTICE: If the overload protector stops the pump
repeatedly, disconnect the power from the pump and
check it to find the problem. Low voltage, long exten-
sion cords, clogged impeller, too much back pressure
in the discharge hose (as when pumping through 50' (15
M) of coiled hose), or extended running of pump with
no load, can all cause overheating.
2. The water being pumped cools the motor, allowing the
pump to run continuously at any depth of water above
1/4". However, if the motor overload stops the pump,
allow it to cool for one hour before restarting. Motor will
not restart before the overload has cooled.
1-800-628-9439
3