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900-002 Rev I (Front)
Installation Instructions
Overview
The installation of the
HC6000 Hi-Lo Pump Switch
is simple and straightforward, but there are
TWO VERY
IMPORTANT
things to remember for the HC6000 to give you years of trouble free, worry free, service.
1. The “
piggyback plug
” attached to the mechanical float switch
cannot be used with the HC6000
. It
must be disconnected and remain disconnected. Just let it lay on the floor after the HC6000 is installed.
2. If your sump pump has internal float switch wiring, i.e., doesn’t have a “piggyback plug,” then you
MUST
secure the float up as if the pit were full so that its internal switch is always closed and the pump enabled.
Step-by-Step Installation
How the Sensor Works:
The sensor detects the presence of water by using a continuity circuit, which, when the tip of the sensor is in
water, allows a small voltage to flow from the sensor, through the water, to ground. When no water is present, the
circuit is broken and no voltage flows. Normally, the pump provides the ground needed for the continuity circuit,
but occasionally it won’t.
When this happens, it is necessary to provide a ground for the sensor to work. This can be done with a length of
wire (14 AWG) having a couple of inches of insulation stripped off at both ends. Secure one end of the wire
around a water pipe or electrical conduit. Place the other end into the pit far enough down so that the end of the
wire is below the sensor.
Note that placing the sensor in a cup of water will not trigger the pump
to come on because there is no ground reference to complete the continuity circuit.
Step 3
Secure the sensors to the discharge pipe or a piece of ½”
PVC pipe. Place one sensor at the level where you want the
pump to turn on and the other where you want the pump to
turn off.
Important Note: This installation arrangement
will not work in pits that receive water from a water
softener or have high mineral content because this
makes the water too conductive for the sensors. Visit
our website
www.washerwatcher.com
for recommended
installation for these applications.
Step 2
Unplug the “piggyback plug” from the 120VAC
outlet and set aside. The HC6000 replaces
the float switch, so the “piggyback plug” won’t
be needed any more.
Step 4
Plug the control module into the 120VAC
outlet. The LED will illuminate RED and
the buzzer will beep 3 times indicating
the HC6000 is ready to go. RED
indicates the output is off. A steady
GREEN means both sensors are
detecting water and the output is turned
on. A flashing GREEN indicates the
output is on and only one sensor is
detecting water
. Note that the HC6000
is not rated for outdoor use.
“Piggyback plug”
from float switch
.
Plug from sump
pump plugs into back
of “piggyback plug.”
Step 5
Plug the sump motor into the control
module. Note that the HC6000’s output is
rated for a maximum of 120 VAC, ¾
HP/13.8 Amps (standard for most sump
pumps).
Step 1
Unplug sump pump
from back of “piggyback
plug.”
Step 6
Important!
Test your installation before leaving it
for unattended operation
. Make sure the pump turns
on when the water level reaches the top sensor, and that
the pump turns off when the water drops below the lower
sensor. Note that because of the way the sensor works,
placing it in a cup of water will not trigger the pump to
come on, See
How the Sensor Works
below.
®
