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Idiomas disponibles
Idiomas disponibles
1 Guidelines
The Franklin Electric submersible motors are a machine component in accor-
dance with the "machines" EC guideline. You must not commission the motor
until you have:
•
manufactured a complete machine,
•
met the safety requirements stipulated in the applicable EC guidelines and
confirmed this by a certificate of conformity.
GB
GB
2 Safety
The 4" submersible motor must only be operated in observance of the following
safety regulations:
• Operate the motor only under water (fig. 1/ fig. 2)
• Take into account the implementation limits of motor and units
• Installation position: Vertical and horizontal (Fig:21)
• Check the electrical system and fusing before switching-on (fig. 3)
• Protect electrical and mechanical danger spots against access
• Vent rising pipe before commissioning in order to avoid water hammers
when starting-up
• Provide a check valve in the pump or rising pipe (max. 7 m away from pump)
(fig. 4)
• Water temperature with original motor filling not below -3° C, with water
filling not below 0° C (fig. 5)
• Maximum water temperature +30° C (fig. 5). Higher temperatures only with
derated motors
• With generator operation always unload the generator first, i.e.
•
Start: First the generator, then the motor
•
Switch-off: First the motor, then the generator
• After powering the system check:
•
operating current of the motor at each phase
•
mains voltage with the motor running
•
level of the medium to be pumped
• Switch off the motor immediately if:
•
Nameplate current is exceeded
•
voltage tolerances of more than, 50Hz +6%/-10% ; 60, 100 and 120Hz +/-
10%, compared to the rated voltage on the motor are measured (fig. 6)
•
dry run is imminent
3 Intended use
Franklin Electric Submersible Motors are specifically designed for submerged
operation as drivers of variable torque loads such as pumps i.e.
• Drinking water supply
• Wells in domestic houses, waterworks and agriculture
• Dewatering, pressure boosting, irregation systems
• Supply of process water
• Ground water heating systems
• Maximum 20 starts per hour, allow 3 min. between successive starts.
• The maximum submergence depth is 150 meters. Up to 1000 meters after
consulting Franklin Electric. Motors in 316 SS are available for operation in
aggressive environments. The responsibility for correct material choosing lies
with the customer.
Improper use of Franklin Electric Submersible Motors, like pumping of air or
explosive media is strictly prohibited.
Attention
For required motor cooling, please consult motor nameplate
etch. If cooling flow is not sufficient, fit an inducer sleeve.
4 Transport and storage
Attention
The motor may be commissioned by trained and instructed
personnel only. Electrical connections have only to be carried
out by qualified personnel.
• Store motor in original packaging until assembly
• Under no circumstances may the motor be stored at temperatures above
50°C since this can lead to filling liquid leakage and premature motor failure
(fig. 7)
• Storage temperature with original motor filling up to -15° C, with water filling
frost-free (fig. 7)
5 Connecting the motor cable
1. Remove plastic plug on the motor.
2. Clear plug and socket of dirt and moisture.
3. Apply a bit of silicone grease or vaseline to the rubber part of the plug – pay
attention that no grease reaches the electrical contacts.
Motors with round plug:
4. Insert plug into the socket until the socket thread becomes visible again
(fig.8/9).
5. Now turn jam nut counter-clockwise until you find the start of the thread.
Then turn clockwise and tighten it by 19mm open end spanner, until jam nut
is on stop. (fig. 8)
6. For all motor cables which fastened with two Phillips screws, tighten screws
with 4.5 - 5.0Nm.
Attention
The maximum tightening torque of the plug is 17 - 20 Nm. If the
jam nut is tightened too much, the plug will become leaky.
6 Extending the motor cable
The cable provided can be extended by the customer, by one of the following
means:
• Apply non-permanent plug connection with Franklin Electric Termination Kit
309 090 901 (or -902 with strain relief)
• Use joints with shrink hose, sealing compound or finished cable fittings.
Protect joints against penetrating moisture (strictly follow manufacturer's
instructions).
• Extension cable (Fig.: 22) must be approved for its use in the medium and
the prevailing temperatures.
Note
The plumbers themselves are responsible for the correct
selection and dimensioning of the drop cable!
7 Assembly of motor and unit
These instructions refer to the motor only. Please strictly observe the assembly
instructions of the pump manufacturer!
1. Place motor and pump horizontally and level (fig. 10).
2. Turn motor shaft by hand before assembly. It must turn freely after overco-
ming the adhesive friction.
3. Apply acid-free, waterproof grease to the coupling internal toothing.
4. Remove hexagon nuts from the studs of the motor.
5. Align the pump so that its cable guard is in line with the lead exit of the
motor and guide pump and motor together.
6. Place spring rings on the studs and tighten the nuts crosswise (max. 20Nm).
Strictly observe the tightening torques of the unit manufacturer.
7. Protect coupling spot against contact.
Attention
Check radial and axial clearance of the motor shaft. There
must be no rigid connection since otherwise motor and
pump will be damaged during commissioning.
8 Electrical connection
Please observe the specifications on both the nameplate and the enclosed data
sheet. The following connection examples refer only to the motor itself. They
are no recommendation regarding the control elements connected upstream.
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