4
Pump Selection
and Inspection
1.To select the proper effluent
submersible pump size and
model for your system,
determine the gallons per
minute needed and pressure
required.
2. Inspect your new pump. After
purchase, check the pump and
other contents of the shipping
container for possible damage.
DO NOT lift the Hydromatic
Effluent Submersible Pump by
its attached electric motor
cables.
The entire pump was tested
thoroughly at the factory.
However, to make sure there is
no hidden damage caused
during shipment, we suggest
checking for free rotation of
the shaft prior to installation:
a) Insert a screwdriver in the
slot in the end of the shaft
and check to see if the pump
shaft turns freely; a slight
drag is permissible.
See
Figure A.
b) Again: Do NOT run unit out
of water.
3. Model Number Designation
Selection of proper size cable
is very important. Undersized
cable results in too low a
voltage supply to the motor
and ultimate motor failure.
Oversized cable will cost
much more than proper-sized
cable. See chart of proper-sized
cable (in chart, the smaller the
AWG number, the larger the
cable wire size).
For Canadian installations:
a) type RWU, TWU, SGOW
or SWOW power supply
cables recommended.
b) The motor case shall be bonded
to the main A-C ground.
NOTE: Ground wire size should
be equal to connector size.
3.
Length of Cable:
The maximum cable length
specified for each horsepower
size and minimum AWG cable
wire size referred to in chart
means the total distance from
the submerged pump motor to
the electrical motor control
box as shown in this diagram.
Hydromatic warranty is void
if undersized AWG cable is
used or if cable lengths longer
than specified for each cable
wire size are used.
Figure A
HE20-51
Flow rate:
8 =
8 gpm
12 = 12 gpm
20 = 20 gpm
25 = 25 gpm
30 = 30 gpm
35 = 35 gpm
Model Designation
2 Wire High Head Effluent
1.
Motor Voltage:
Hydromatic Effluent Submersible
Pumps operate on a 115 or 230
volt, single phase current. The
motor is NOT dual voltage.
4 Inch Motor Minimum Service
Requirements
2.
Cable Size:
Submersible pump cable is not
just ordinary wire; the copper
cable is well insulated to
withstand many years of
complete submersion in water.
Electrical
Preparation
Min.
HP
Volts
Wire
Service
1/2
115
2W
200 amp
1/2
230
2W
60 amp
3/4
230
2W
100 amp
1
230
2W
100 amp
1-1/2
230
2W
200 amp
Max.
Maximum Cable Length Using AWG Cable Size
HP Wire Volts Phase
Amps
#14
#12
#10
#8
#6
#4
1/2
2
115
1
12.0
100
160
250
390
620
960
1/2
2
230
1
6.0
400
650
1020
1610
2510
3880
3/4
2
230
1
8.0
300
480
760
1200
1870
2890
1
2
230
1
9.8
250
400
630
990
1540
2380
1-1/2
2
230
1
13.1
190
310
480
770
1200
1870
Maximum Cable Length in Feet
HP:
5 =
1/2 HP
7 =
3/4 HP
10 =
1 HP
15 = 1-1/2 HP
VOLTAGE: 1 =
115V
2 =
230V