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Installation/Operation
Submersible
Figure 1: Insert a 3" PVC pipe in the bottom of the motor
to raise the pump in the tank.
PUMP INSTALLATION
Risk of electrical shock. Do not remove or alter
cord. Do not connect conduit to pump.
1. Only qualified personnel should install the pump and asso-
ciated control equipment.
2. Vent sewage tank according to local code.
3. Do not install pump in any location classified as hazardous
by National Electrical Code, ANSI/NFPA 70-1984.
Table 1: Recommended Fusing Data
60 Hz/1 Phase 2-Wire Cable
Pump Model
10DOM05121
10DOM05221
20DOM05121+1
20DOM05221+1
30DOM05121
30DOM05221
20DOM07221
30DOM07221
30DOM10221
Pump
3" pipe
4134 0202
Motor HP
Volts
0.5
115
0.5
230
0.5
115
0.5
230
0.5
115
0.5
230
0.75
230
0.75
230
1
230
4. These pumps are intended for permanent connection only.
Provide strain relief at control panel for power supply cord
connection to box. All control components must be UL list-
ed and suitable for end use application.
5. Do not pump flammable liquids, strong caustics, or strong
acids with this pump.
6. To prevent dropping pump, lower it by the drop pipe, not
by the cables. The electrical cables will not hold the pump
weight.
7. Discharge outlet is 1-1/4" NPT threaded.
NOTICE: If installing external check valve, hold discharge
with pipe wrench to prevent loosening discharge in shell.
8. If pump is to be operated with an open discharge, a dis-
charge valve must be installed. Before startup, open this
valve about 1/3 open. Start pump. Slowly open valve until
the desired flow rate is reached. Final setting must be
within pump' s recommended operating range.
OPERATION
1. The pump must be submerged at all times during normal
operation. Do not run pump dry.
2. Make sure that the float switches are set so that the pump
stops before the pump runs dry or breaks suction. If neces-
sary, adjust float switches to achieve this.
3. The motor bearings are lubricated internally. No mainte-
nance is required or possible on the pump.
Max. Load
Locked
Amp
Rotor Amps
11
25
5.5
14.8
10.6
25
5.3
14.8
9.5
23
4.6
12
6.5
27.7
5.6
14.8
7
20.4
Fast Acting
Slow Acting
Fuse
Fuse
20
15
10
10
20
15
10
10
20
15
10
10
15
10
15
10
15
10
3
Circuit
Breaker
20
10
20
10
15
10
10
10
15
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