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OWNERS MANUAL
INSTALLATION AND OPERATING INSTRUCTIONS
SELF-PRIMING CENTRIFUGAL PUMPS
RULES FOR SAFE INSTALLATION AND OPERATION
1. BE SURE electric power to your pump or control
box is disconnected before installing or while ser-
vicing your pump and water system.
2. BE SURE to test water from well for safe use
before installing your pump. Check local Health
Department for procedure.
3. BE SURE to keep well covered until installation
is completed to prevent leaves and foreign matter
from falling into the well. This will prevent conta-
mination of the water and/or possible serious
damage to the mechanical operation of your
pump.
4. BE SURE installation is in accordance with all
applicable local electric, plumbing, sanitary,
pump and well codes and ordinances.
5. BE SURE your electric supply circuit agrees with
the voltage stamped on the motor nameplate.
NOTE: If your motor is dual voltage, BE SURE to
wire motor to same voltage as electric supply cir-
cuit. If in doubt, contact your local Power
Company.
Printed In U.S.A.
REPAIR PARTS LIST
50 HERTZ
"DD" SERIES
MODELS
1 HP
5DDHE-104PMK
1 HP
5DDHE3-104PMK
1-1/2 HP
5DDHF-53PMK
1-1/2 HP
5DDHE3-53PMK
6. BE SURE to use correct fusing and wiring sizes
7. BE SURE your electrical circuit, pump motor,
8. BE SURE to protect pump, tank, piping, and
exceed 75 pounds pressure per square inch (PSI)
(5.2 BAR), a suitable safety device must be
installed. This can either be a high pressure electri-
cal cut-off switch or a relief valve. Failure to follow
these instructions can cause tank blow-up and
result in serious injury.
The relief valve should be capable of passing full
pump capacity at 5.5 BAR.
for proper motor operation. See fusing and wiring
data in this manual.
control box, and water system is completely
grounded in accordance with the applicable local
electrical codes and ordinances.
water system against below freezing tempera-
tures. Freezing can cause the pressure controls
to become inoperative and result in tank blow-up.
If your water system has the ability to
U94 (Rev. 10/30/97)
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Summary of Contents for Pentair DD Series
- Page 1 OWNERS MANUAL INSTALLATION AND OPERATING INSTRUCTIONS REPAIR PARTS LIST 50 HERTZ SELF-PRIMING CENTRIFUGAL PUMPS “DD” SERIES MODELS 1 HP 5DDHE-104PMK 1 HP 5DDHE3-104PMK 1-1/2 HP 5DDHF-53PMK 1-1/2 HP 5DDHE3-53PMK RULES FOR SAFE INSTALLATION AND OPERATION 1. BE SURE electric power to your pump or control 6.
- Page 2 Typical Pump Installations Piping Both suction and discharge piping should be indepen- Priming plug dently supported at a point near the pump to avoid Check valve strains being placed on the pump. Start all piping at the Priming tee pump to avoid strains left by a gap at last connection. Suction pipe It is advisable to increase the size of both suction and...
- Page 3 3. Suction piping must be air tight. Three Phase: Three phase motors require magnetic starters, and can run in either direction, depending on 4. If there is a valve in discharge or suction line, be how they are connected to the power supply. sure valve or valves are open.
- Page 4 Storage of Pump Drain liquid from pump to prevent freezing. It is recom- When restoring the use of the pump replace all plugs mended that a good rust inhibitor be put in the liquid end and make sure all connections are tightly sealed. to prevent excessive corrosion.
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