Preoperational Grinder Pump
Checks:
Step 1:
Ensure power source is off or
disconnected.
Step 2:
Remove pump from basin.
Step 3:
With power off, turn radial cutter
with a screwdriver to be sure
it rotates freely.
Step 4:
Stand clear from pump and
with power on, check for proper
rotation of pump by turning
the H-O-A switch to Hand
momentarily and then Off.
The impeller should turn
counterclockwise when viewed
from the suction end.
6
shuts off when the water level is
2 inches above the pump volute
discharge.
Float adjustment for duplex
systems: Adjust floats so that a
pump will start when the water
level is just above the pump motor
housing, and pump on override
water level is 5 inches above
the pump motor housing. Adjust
pump shut-off so that water level
is within 2 inches above pump
volute discharge. Pumps should
alternate starting, between each
other, upon successive pump-
down cycles. To check override
level, set both H-O-A switches
to Off position and allow water
to surpass the override level,
then set both H-O-A switches to
Auto position and both pumps
should start. Turn off one pump
and be sure second pump starts
when override level is reached on
second trial. If pumps fail to cycle
in this manner, retrace control
float wiring panel.
Step 7:
Ensure H-O-A switch is set to
Auto before placing system into
service.
Step 1:
Run clear water into the basin
until motor housing is covered.
Step 2:
Open the shut-off valve to the
discharge line.
Step 3:
Turn H-O-A switch to the Off
position and turn on main breaker.
Step 4:
Start the pump by turning the
H-O-A switch to the Hand
position.
Step 5:
Check the pump amperage with
clamp on ammeter on black
pump lead. Readings higher
than nameplate indicate clogged
pump, miswiring, or improper
voltage. If basin is not being
pumped down and amperage
readings are considerably lower
than nameplate, then the pump is
air locked.
NOTE: Nameplate amperage is
rated at the largest impeller
diameter trim. Pumps with
cut diameter impellers will
draw slightly fewer amps
than nameplate. If pump is
air locked, refer to the
troubleshooting section in this
manual.
Step 6:
Float adjustment for simplex
systems: Adjust floats so that the
water level is above the pump
motor housing, and the pump
Pump
Operations
BLACK
WHITE
GREEN
Common
Main
Ground
Power
Power
Line
Line
230 VOLT - 1 PHASE PUMP
POWER
CORD
HPGR200
HPG200
ELECTRICAL CONNECTIONS
1 Phase
3 Phase
Green Ground
Ground
Red
Start Power Line
Power Line
White Main Power Line
Power Line
Black Common Power Line Power Line
Orange Seal Failure
Seal Failure
Blue
Heat Sensor
Heat Sensor
White Heat Sensor
Heat Sensor
w/black
stripe
