Bell & Gossett IM179 R02 Single Phase, Single Seal Grinder Pump - Manual (Page 5)

5
OPERATION
Once the piping connections are made and checked you
can run the pumps.
Hard Wired Float Switch Operation – Turn circuit break-
er or fused disconnect to On. Test the pump by filling the
wetwell until the pump goes On. If the pumps run but
fail to pump, they are probably air locked, drill the relief
holes per the instructions in the Piping Section.
Check the operating range to insure a minimum two
minute run time and that the pump goes Off when the
float is at rest.
Control Panel Operation – Fill the wetwell with clear
water.
use the pump H-O-A (Hand-Off-Automatic) switches in
Hand to test the pumps. If they operate well in Hand
proceed to test Automatic operation. If the pumps run
but fail to pump, they are probably air locked, drill the
relief holes per the instructions in the Piping Section.
Place Control Panel switch(es) in Automatic position
and thoroughly test the operation of the ON, OFF, and
Alarm floats by filling the wetwell with clear water.
Important: Failure to provide a Neutral from the power
supply to a 1Ø, 230 volt Control Panel will not allow the
panel control circuit to operate. The Neutral is necessary
to complete the 115 volt control circuit.
Check voltage and amperage and record the data on the
front of this manual for future reference. Compare the
amperage readings to the pump nameplate maximum
amperage. If higher than nameplate amperage investigate
cause. Operating the pump off the curve, i.e. with too
little head or with high or low voltage will increase am-
perage. The motor will operate properly with voltage not
more than 10% above or below pump nameplate ratings.
Performance within this range will not necessarily be the
same as the published performance at the exact rated
nameplate frequency and voltage. Correct the problem
before proceeding.
Reset the Alarm circuit, place pump switch(es) in the
Automatic position and Control Switch in ON position.
The system is now ready for automatic operation.
Explain the operation of the pumps, controls and alarms
to the end user. Leave the paperwork with the owner or
at the control panel if in a dry, secure location.
SINGLE PHASE PUMPS
PLUG-CONNECTED UNITS MUST
BE CONNECTED TO A PROPERLY
GROUNDED, GROUNDING TYPE
RECEPTACLE.
ON NON-PLUG UNITS, DO NOT RE-
MOVE CORD AND STRAIN RELIEF.
DO NOT CONNECT CONDUIT TO
PUMP.
Pumps with bare lead power cords can be hard-wired to a
float switch, wired to a 1Ø contactor, a Simplex control-
ler or a Duplex controller. Always verify that the float
switch is rated for the maximum run amperage, maxi-
mum starting amperage, and the HP rating on the pump.
Single-phase wastewater pumps contain on-winding over-
loads, unless noted on the pump nameplate. See Figure 1.
SINGLE PHASE CONTROL PANELS:
Control panels are available as Simplex (controls 1
pump) or Duplex (controls 2 pumps). Our standard
control panels are available with many standard features
and can be built with our most popular options. We also
custom build panels which offer many more design op-
tions than the standard panels. Custom control panels are
available in many different configurations. Custom panel
quote requests may be forwarded to Customer Service
through any authorized distributor.
Our standard simplex/duplex panels feature a solid-state
printed circuit board design with standard high level
alarm circuits. Other standard features are: an auxiliary
dry alarm contact for signaling a remote alarm and float
switch position indicator lights. Most standard panels are
in stock for immediate delivery.
INSTALLATION
STANDARD PUMP INSTALLATION
Connect the pump(s) to the guide rail pump adapters
or to the discharge piping. Guide rail bases should be
anchored to the wetwell floor.
Complete all wiring per the control panel wiring dia-
grams and NEC, Canadian, state, provincial and/or local
codes.
DO NOT PLACE HANDS IN PUMP
SUCTION WHILE CHECKING
MOTOR ROTATION. TO DO SO
WILL CAUSE SEVERE PERSONAL
INJURY.
Lower the pump(s) into the wetwell.
Check to insure that the floats will
operate freely and will not contact the
piping.
Connect the piping per local codes and the drawings in
Typical Drawings Section.
DanGEr
Hazardous Machinery
!
WARNING
Hazardous voltage
can shock, burn or
cause death.