Pentair MYERS 10MD05121 Manual Del Propietário página 3

Installation • Operation
Permanently ground pump before connecting power
cable to power supply. Connect ground wire to approved
ground first, then connect to equipment being installed.
Do not ground to a gas supply line.
Float switches or any other approved motor control must
match motor input in full load amperes.
For more information, contact your local code officials.
Installation Wiring Instructions
Pump has two power supply wires (Red/Black) and one
ground wire (Green).
Fasten power supply wire leads securely to control
panel; leave 4-5" of slack in leads at this point. Securely
fasten leads to plastic pipe within 6" of the pump
discharge section.
NOTICE: To avoid dropping pump or damaging wires or
splices, NEVER allow pump wires to support weight of
the pump.
Installation
Risk of electric shock . Can shock, burn
or kill. Do not remove or alter cord. Do not connect
conduit to pump.
1. Only qualified personnel should install the pump
and associated 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.
Submersible
Figure 1: Insert a 3" PVC pipe in the bottom of the
motor to raise the pump in the tank.
Pump
3" pipe
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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 listed and suitable for end
use application.
5. Do not pump flammable liquids, strong caustics, or
strong acids with this pump. Do not use with salt
water or brine.
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 discharge 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 necessary, adjust float switches to
achieve this.
3. The motor bearings are lubricated internally. No
maintenance is required or possible on the pump.
250(76)
10 GPM
200(61)
150(46)
100(30)
50(15)
0(0)
0 10
(0) (38)
Figure 2: Performance in Feet of Head at Gallons per
Minute (M@LPM).
20 GPM
30 GPM
30
20
(114)
(76)
Flow in USGPM (LPM)
3
40
(151)
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