Grundfos 5SQE03A-90-NE, 5SQE05B-250-NE, 5SQE03A-120-NE, 5SQE07B-290-NE, 5SQE10C-340-NE Installation And Operating Instructions Manual

Installation and

Operating Instructions

Please leave these instructions with the pump for future reference

• Efficient Permanent Magnet
Motor

• High Starting Torque

• Soft Start

(2 seconds to reach maximum
rpm, and maximum pressure)

• Built-in "Smart" Motor
Protection with automatic
restart

• Communication Through the
Redi-Flo3 Status Box

• Integrated Protection Against
Adverse Conditions

• Environmental Materials of
Construction

SQE-NE

Environmental Pumps

Grundfos Pumps Corporation • 3131 N. Business Park Ave., Fresno, CA 93727

Customer Service Centers: Allentown, PA • Fresno, CA

Phone: [phone] • Fax: [phone]

Canada: Oakville, Ontario • Mexico: Apodaca, N.L.

Visit our website at www.us.grundfos.com

Products manufactured by GRUNDFOS are warranted to the original user only to be free
of defects in material and workmanship for a period of 18 months from date of installation,
but not more than 24 months from date of manufacture. GRUNDFOS' liability under this
warranty shall be limited to repairing or replacing at GRUNDFOS' option, without charge,
F.O.B. GRUNDFOS factory or authorized service station, any product of GRUNDFOS
manufacture. GRUNDFOS will not be liable for any costs of removal, installation,
transportation, or any other charges which may arise in connection with a warranty claim.
Products which are sold but not manufactured by GRUNDFOS are subject to the warranty
provided by the manufacturer of said products and not by GRUNDFOS' warranty. GRUNDFOS
will not be liable for damage or wear to products caused by abnormal operating conditions,
accident, abuse, misuse, unauthorized alteration or repair, or if the product was not installed
in accordance with GRUNDFOS printed installation and operating instructions.

To obtain service under this warranty, the defective product must be returned to the
distributor or dealer of GRUNDFOS products from which it was purchased together with
proof of purchase and installation date, failure date, and supporting installation data. Unless
otherwise provided, the distributor or dealer will contact GRUNDFOS or an authorized
service station for instructions. Any defective product to be returned to GRUNDFOS or a
service station must be sent freight prepaid; documentation supporting the warranty claim
and/or a Return Material Authorization must be included if so instructed.

MANUFACTURER WILL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES, LOSSES, OR EXPENSES ARISING FROM INSTALLATION, USE, OR ANY
OTHER CAUSES. THERE ARE NO EXPRESS OR IMPLIED WARRANTIES, INCLUDING
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, WHICH EXTEND
BEYOND THOSE WARRANTIES DESCRIBED OR REFERRED TO ABOVE. EXCEPT
AS EXPRESSLY HEREIN PROVIDED THE GOODS ARE SOLD "AS IS", THE ENTIRE
RISK AS TO QUALITY AND FITNESS FOR A PARTICULAR PURPOSE, AND
PERFORMANCE OF THE GOODS IS WITH THE BUYER, AND SHOULD THE GOODS
PROVE DEFECTIVE FOLLOWING THEIR PURCHASE, THE BUYER AND NOT THE
MANUFACTURER, DISTRIBUTOR, OR RETAILER ASSUMES THE ENTIRE RISK OF
ALL NECESSARY SERVICING OR REPAIR.

Some jurisdictions do not allow the exclusion or limitation of implied warranties of
merchantability and fitness for a particular purpose, of incidental or consequential damages
and some jurisdictions do not allow limitations on how long implied warranties may last or
require you to pay certain expenses as set forth above. Therefore, the above limitations or
exclusions may not apply to you. This warranty gives you specific legal rights and you may
also have other rights which vary from jurisdiction to jurisdiction.

The telephone number of our service and repair facilities central directory, from which you
can obtain the locations of our service and repair facilities is, 1-800-333-1366.

LIMITED WARRANTY

Federal Communications Commission Notice:

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated
in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the
interference at his own expense.

L-RF-IO-008 Rev.2/00
PRINTED IN USA

SAFETY WARNING

Pre-Installation Checklist

1. Well Preparation

If the pump is to be installed in a new well then the well should be fully
developed and bailed or blown free of cuttings and sand. The construction of the
GRUNDFOS Redi-Flo3 submersibles makes it resistant to abrasion; however, no
pump made of any material can forever withstand the destructive wear that
occurs when constantly pumping sandy water.

2. Make Sure You Have the Right Pump

Determine the maximum depth of the well, and the
drawdown level at the pump's maximum capacity. Pump
selection and setting depth should be made based on this
data.

3. Pumped Fluid Requirements

Submersible well pumps are designed for pumping turbid
free, cool water; free of air or gases. Possible decreased
pump performance and life expectancy can occur when
operating in conditions outside of this chemistry. Water
temperature ideally should not exceed 104°F. Extended
pump life and optimal performance can best be obtained
through proper well development and in the case of
higher fluid temperatures use a cooling shroud.

A check should be made to ensure that the installation
depth of the pump will always be at least three feet below
the maximum drawdown level of the well (Fig.1). The
bottom of the motor should never be installed lower than
the bottom of the screen.

4. Motor Cooling Requirements

To ensure proper motor cooling refer to the table below for minimum flow
requirements:

Electrical Work

WARNING:To reduce the risk of electric shock during operation of this pump
requires the provision of acceptable grounding. If the means of connection to
the supply connected box is other than grounded metal conduit, ground the
pump back to the service by connecting a copper conductor (at least the size
of the circuit supplying the pump) to the grounding screw provided within the
wiring compartment.

5. Applications

Typical applications:
Environmental applications such as:

- Remediation pumping.

- Leachate recovery.

- Pollution recovery.

- Dewatering

6. Motor Preparation

GRUNDFOS MSE3-NE submersible motors have water-lubricated slide
bearings. No additional lubrication is required.

The submersible motors are factory-filled with a special GRUNDFOS
motor liquid (type SML 2), which will protect the motor fluid down to

-4°F(20°C) and to prevent the growth of bacteria. The level of motor fluid is
important for the operating life of the bearings and consequently the life of
the motor.

Refilling of motor liquid

It is recommended to check and if needed, refill the motor with
GRUNDFOS motor fluid SML 2.

If the pump is to be installed horizontally, e.g. in a
tank, and there is a risk that the pump might be
covered by mud, it must be installed in a flow
sleeve.

Liquid temperatures/cooling

Figure 2 shows an operating Redi-Flo3 pump
installed in a well.
Figure 2 illustrates the following:

- Well diameter.

- Pump diameter.

- Temperature of pumped liquid.

- Flow past the motor to the pump

strainer.
Note: The well diameter must be at least 3”. If there
is a risk that the motor will be covered with
sediment or the pumped fluid is at an elevated
temperature then it is recommended the pump be
placed in a Flow Sleeve. The motor should always
be installed above the well screen.

Maximum

liquid temperature

0.0 f/s

(free convection)

Min. 0.5 f/s

Flow velocity

past the motor

86° F(30°C)

104°F (40°C)

I.D.

Fig. 1

Page 2Page 1

5. Applications

Typical applications:
Environmental applications such as:

- Remediation pumping.

- Leachate recovery.

- Pollution recovery.

- Dewatering

6. Motor Preparation

GRUNDFOS MSE3-NE submersible motors have water-lubricated slide
bearings. No additional lubrication is required.

The submersible motors are factory-filled with a special GRUNDFOS
motor liquid (type SML 2), which will protect the motor fluid down to

-4°F(20°C) and to prevent the growth of bacteria. The level of motor fluid is
important for the operating life of the bearings and consequently the life of
the motor.

Refilling of motor liquid

It is recommended to check and if needed, refill the motor with
GRUNDFOS motor fluid SML 2.

If the pump is to be installed horizontally, e.g. in a
tank, and there is a risk that the pump might be
covered by mud, it must be installed in a flow
sleeve.

Liquid temperatures/cooling

Figure 2 shows an operating Redi-Flo3 pump
installed in a well.
Figure 2 illustrates the following:

- Well diameter.

- Pump diameter.

- Temperature of pumped liquid.

- Flow past the motor to the pump

strainer.
Note: The well diameter must be at least 3”. If there
is a risk that the motor will be covered with
sediment or the pumped fluid is at an elevated
temperature then it is recommended the pump be
placed in a Flow Sleeve. The motor should always
be installed above the well screen.

Pre-Installation Checklist

Well Dia.

Pump dia.

Fig. 2

Installation Procedures

Page 3

7. Installation Postions

Positional requirements

The pump is suitable for
vertical as well as horizontal
installation, however, the
pump shaft must never fall
below the horizontal plane,
see fig. 4.

To refill the motor, proceed as follows:

1. Remove the cable guard and separate
the pump end from the motor.

2. Place the motor in vertical position
with an inclination of approx. 10°.

3. Remove the filling plug using a
screwdriver or a similar tool.

4. Inject motor liquid into the motor with
a filling syringe or similar tool,see fig. 3.

5. To allow possible air to escape, move
the motor from side to side. And turn the
shaft.

6. Replace the filling plug and make sure it is tight.

7. Assemble pump end and motor.

8. Install the cable guard.

The pump is now ready for installation.

8. Electrical connection

General

The electrical connection should be carried out by an authorized
electrician in accordance with local regulations.

Before starting work on the pump, make sure the
electricity supply has been switched off and that it cannot be
accidentally switched on. The pump must be grounded. The
pump must be connected to an external mains switch.

The supply voltage, rated maximum current and power factor (PF) appear
on the motor nameplate. The required voltage for GRUNDFOS
submersible MSE3-NE motors, measured at the motor terminals, is +6%/–
10% of the nominal voltage during continuous operation (including
variation in the supply voltage and losses in cables).

If the pump is connected to an installation where a Ground Fault circuit
breaker (GFI) is used as additional protection, this circuit breaker must trip
out when ground fault currents with DC content (pulsating DC) occur.

Supply voltage:1 x 100-115V or 1 x 200-240 V +6%/–10%, 50/60 Hz.
The current consumption can only accurately be measured by means of a

true RMS instrument. If other instruments are used, the value measured
will differ from the actual value.
The Redi-Flo3 pumps can be connected to a Redi-Flo3 status box.

Note: The pump must never be connected to a capacitor or to
another type of control box other than a Redi-Flo3 status box.
The pump must never be connected to an external frequency
converter.

Motor protection

The motor has built-in automatic thermal overload protection and requires
no additional motor protection.

Connection of motor

The motor can be connected directly to the main circuit breaker.

Fig. 3

Fig. 4

Filling plug

Pre-Installation Checklist

Installation Procedures

Page 4

8. Electrical connection

General

The electrical connection should be carried out by an authorized
electrician in accordance with local regulations.

Before starting work on the pump, make sure the
electricity supply has been switched off and that it cannot be
accidentally switched on. The pump must be grounded. The
pump must be connected to an external mains switch.

The supply voltage, rated maximum current and power factor (PF) appear
on the motor nameplate. The required voltage for GRUNDFOS
submersible MSE3-NE motors, measured at the motor terminals, is +6%/–
10% of the nominal voltage during continuous operation (including
variation in the supply voltage and losses in cables).

If the pump is connected to an installation where a Ground Fault circuit
breaker (GFI) is used as additional protection, this circuit breaker must trip
out when ground fault currents with DC content (pulsating DC) occur.

Supply voltage:1 x 100-115V or 1 x 200-240 V +6%/–10%, 50/60 Hz.
The current consumption can only accurately be measured by means of a

true RMS instrument. If other instruments are used, the value measured
will differ from the actual value.
The Redi-Flo3 pumps can be connected to a Redi-Flo3 status box.

Note: The pump must never be connected to a capacitor or to
another type of control box other than a Redi-Flo3 status box.
The pump must never be connected to an external frequency
converter.

Motor protection

The motor has built-in automatic thermal overload protection and requires
no additional motor protection.

Connection of motor

The motor can be connected directly to the main circuit breaker.