Grundfos SL1 Series User manual

SL1 and SLV pumps
1.5 - 15 hp, 60 Hz
GRUNDFOS INSTRUCTIONS
Installation and operating instructions
75
+
FM

2

3
SL1 and SLV pumps
1.5 - 15 hp, 60 Hz
Installation and operating instructions 4
Instrucciones de instalación y funcionamiento 30
Notice d'installation et de fonctionnement 58

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LIMITED WARRANTY
Products manufactured by GRUNDFOS PUMPS CORPORATION (Grundfos) are warranted
to the original user only to be free of defects in material and workmanship for a period of
24 months from date of installation, but not more than 30 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.
GRUNDFOS 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.
Some jurisdictions do not allow the exclusion or limitation of incidental or consequential
damages and some jurisdictions do not allow limit actions on how long implied warranties
may last. 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.

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Original installation and operating instructions.
CONTENTS
1. Symbols used in this document
2. General description
This booklet includes instructions for installation, operation and
maintenance of Grundfos SL1 and SLV submersible sewage and
wastewater pumps with motors of 1.5 to 15 hp (1.1 to 11 kW).
Grundfos SL1 and SLV sewage pumps are designed for pumping
domestic and industrial sewage and wastewater.
Two types of pumps are available:
• SL1 sewage pumps with single-channel impeller
• SLV sewage pumps with Vortex impeller.
The pumps can be installed on an auto-coupling system or stand
freely on the bottom of a tank.
Grundfos SL1 and SLV pumps are designed with single-channel
and free-flow impeller, respectively, to ensure reliable and
optimum operation.
The booklet also includes specific instructions for the explosion-
proof pumps.
1. Symbols used in this document 5
2. General description 5
2.1 Product drawing 6
2.2 Control and monitoring 6
2.3 Applications 6
2.4 Pump selection 6
2.5 Operating conditions 7
3. Delivery and handling 8
3.1 Transportation 8
3.2 Storage 8
4. Identification 8
4.1 Nameplate 8
4.2 Type key 9
5. Approvals 10
5.1 Approval standards 10
5.2 Explanation to FM approval 10
6. Safety 10
6.1 Potentially explosive environments 11
7. Installation 11
7.1 Submerged installation on auto-coupling 12
7.2 Free-standing submerged installation on ring stand 13
8. Electrical connection 14
8.1 Wiring diagrams 15
8.2 Pump controllers 18
8.3 Thermal switch, Pt1000 and thermistor 19
8.4 WIO sensor (water-in-oil sensor) 19
8.5 Moisture switch 19
8.6 IO 111 20
8.7 Frequency converter operation (VFD) 20
9. Start-up 21
9.1 General start-up procedure 21
9.2 Operating modes 22
9.3 Direction of rotation 22
10. Maintenance and service 22
10.1 Inspection 23
10.2 Dismantling the pump 23
10.3 Assembling the pump 24
10.4 Oil quantities 25
10.5 Service kits 26
10.6 Contaminated pumps 26
11. Fault finding 27
12. Technical data 28
13. Disposal 29
Warning
Prior to installation, read these installation and
operating instructions. Installation and operation
must comply with local regulations and accepted
codes of good practice.
Warning
The use of this product requires experience with
and knowledge of the product.
Persons with reduced physical, sensory or
mental capabilities must not use this product,
unless they are under supervision or have been
instructed in the use of the product by a person
responsible for their safety.
Children must not use or play with this product.
Warning
If these safety instructions are not observed, it
may result in personal injury!
Warning
If these instructions are not observed, it may lead
to electric shock with consequent risk of serious
personal injury or death.
Warning
These instructions must be observed for
explosion-proof pumps. It is advisable also to
follow these instructions for standard pumps.
Caution
If these safety instructions are not observed, it
may result in malfunction or damage to the
equipment.
Note
Notes or instructions that make the job easier
and ensure safe operation.
FM

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2.1 Product drawing
Fig. 1 SL1 pump
For further information on dimensions, weights and components,
see pages 86 and 94.
2.2 Control and monitoring
The pumps can be controlled via the Grundfos Dedicated
Controls, DC or DCD.
Pumps with sensor are supplied together with an IO 111 which
can receive signals from the following transmitters:
• water-in-oil-sensor (WIO sensor) in the pump
• moisture sensor in the motor
• temperature sensor in the stator windings
• winding resistance sensor in the motor.
For further information, see installation and operating instructions
for the specific sensor.
2.3 Applications
SL1 and SLV pumps are designed for pumping these liquids:
• large quantities of drainage and surface water
• domestic wastewater with discharge from toilets
• wastewater with a high content of fibres (vortex impeller)
• municipal and commercial sewage and wastewater.
SL1 and SLV pumps are ideal in the following locations:
• public buildings
• recidential housing
• industries
• garages
• multi-storey car parks
• vehicle washing tunnels
• restaurants.
The compact design makes the pumps suitable for both
temporary and permanent installation.
2.4 Pump selection
The table below shows which pump version to select for a
number of liquids:
Impeller type: 1 = single-channel impeller, V = free-flow impeller.
TM04 2648 2808
Pos. Description
1 Lifting bracket
2 Nameplate
3 Oil screws
4 Discharge flange
5 Cable plug
6 Clamp
7 Pump housing
1
5
2
6
4
3
7
Pumped liquid
Pump passage
[Inch (mm)]
2
(50) 2.5 (65) 3 (80) 4 (100)
Drainage water 1 V 1 / V 1 / V
Domestic wastewater without
discharge from toilets 1 V 1 / V 1 / V
Domestic wastewater with
discharge from toilets 1 / V 1 / V
Wastewater with a high content of
fibres VVV
Industrial wastewater 1 / V 1 / V
Wastewater with gaseous sludge 1 / V 1 / V
Municipal wastewater 1 / V 1 / V

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2.5 Operating conditions
The Grundfos SL1 and SLV pumps are suitable for the following
operating situations:
•S1 operation (continuous operation), the pump must always
be covered by the pumped liquid to the top of the motor.
See fig. 2.
•S3 operation (intermittent operation), the pump must always
be covered by the pumped liquid up to the top of the cable
entry. See fig. 2.
For further information about S1 and S3 operation, see section
9.2 Operating modes.
Fig. 2 Stop levels
pH value
SL1 and SLV pumps in permanent installations can be used for
pumping liquids with a pH value between 4 and 10.
Liquid temperature
32 °F to +104 °F (0 °C to + 40 °C).
For short periods (maximum 3 minutes) a temperature of up to
+140 °F (+60 °C) is permissible (non-FM versions only).
Ambient temperature
For non-explosion proof pumps, the ambient temperature may
exceed +104 °F (+40 °C) for a short period (max. 3 minutes).
Density and viscosity of pumped liquid
When pumping liquids with a density and/or a kinematic viscosity
higher than that of water, use motors with correspondingly higher
outputs.
Pumping liquids with high content of solids, fibres etc.
In very tough applications, and in applications with high content of
solids, fibres, etc. it is advisable to rotate the impeller backwards
a few seconds, before or after each pump cycle.
Flow velocity
It is advisable to keep a minimum flow velocity to avoid
sedimentations in the piping system. Recommended flow
velocities:
- in vertical pipes: 2.3 ft/s (0.7 m/s)
- in horizontal pipes: 3.3 ft/s (1.0 m/s)
Installation depth
Maximum 65 ft (20 m) below liquid level.
Maximum solids size
From 2" to 4" (50 to 100 mm), depending on pump size.
Operating mode
Maximum 30 starts per hour.
TM04 2649 2808
Warning
Explosion-proof pumps must never pump liquids
of a temperature higher than +104 °F (+40 °C).
Warning
For explosion-proof pumps, the ambient
temperature on the installation site must be in
the range from -4 °F to +104 °F (-20 °C to +40 °C).
For explosion-proof pumps with WIO sensor, the
ambient temperature at the installation site must
be in the range from 32 °F to +104 °F
(0 °C to +40 °C).
S1 operation
S3 operation
FM
FM
Note
This procedure applies only to vortex impellers.
Caution
Do not rotate the impeller in single-channel
impeller pumps backwards.

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3. Delivery and handling
The pump may be transported and stored in a vertical or
horizontal position. Make sure that it cannot roll or fall over.
3.1 Transportation
All lifting equipment must be rated for the purpose and checked
for damage before any attempts to lift the pump. The lifting
equipment rating must under no circumstances be exceeded.
The pump weight is stated on the pump nameplate.
3.2 Storage
During long periods of storage, the pump must be protected
against moisture and heat.
Storage temperature: -22 °F to +140 °F (-30 °C to +60 °C)
If the pump has been in use, the oil should be changed before
storage.
After a long period of storage, the pump should be inspected
before it is put into operation. Make sure that the impeller can
rotate freely. Pay special attention to the condition of the shaft
seal, O-rings, oil and the cable entry.
4. Identification
4.1 Nameplate
The nameplate states the operating data and approvals applying
to the pump. The nameplate is fitted to the side of the stator
housing close to the cable entry.
Fix the extra nameplate supplied with the pump to the cable end
in the control box.
Fig. 3 Nameplate
Warning
Always lift the pump by its lifting bracket or by
means of a fork-lift truck if the pump is fixed on a
pallet. Never lift the pump by means of the motor
cable or the hose/pipe.
Warning
If the pumps are stored for more than one year or
it takes a long time before it is put into operation
after the installation, the impeller must be turned
at least once a month.
TM04 4187 0909
Pos. Description
1 FM marking
2 Thermal protected
3 Type designation
4 Serial number
5 Production code (year/week)
6 Maximum ambient temperature
7 Maximum head
8 Maximum flow rate
9 Rated input/output power
10 Rated voltage, D
11 Rated voltage, Y
12 Frequency
13 Country of production
14 CSA mark
15 FM mark
16 Enclosure class to IEC
17 Maximum installation depth
18 Power factor
19 Number of phases
20 Rated speed
21 Service factor
22 Full load current, D
23 Full load current, Y
24 Insulation class
25 Weight without cable
5
4
1
3
6
7
9
10
8
13
11
16
18
15
19
20
23
17
22
24
21
25
12
14
2

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4.2 Type key
The pump can be identified by means of the type designation stated on the pump nameplate. See section 4.1 Nameplate.
Code Example SL 1. 30 .A30. 55. A. Ex. 4. 6. 0H A. Q.
SL Pump type: Grundfos wastewater pump/sewage pump
1
V
Impeller type:
Single-channel impeller
Free-flow impeller (SuperVortex)
20
25
30
40
Pump passage. Code number from type key / 10 [inch]:
2" (50 mm)
2.5" (65 mm)
3" (80 mm)
4" (100 mm)
A25
A30
A40
A60
Pump discharge (discharge port in inches):
Ansi 2.5" (DN65)
Ansi 3" (DN80)
Ansi 4" (DN100)
Ansi 6" (DN150)
55 Motor power. Code number from type key / 10 [hp] 5.5 hp = 4.0 kW
[-]
A
Accessories:
Standard
Sensor
[-]
Ex
Pump version:
Non-explosion-proof
Explosion-proof
2
4
Number of poles:
2-pole
4-pole
6Frequency: 60 Hz
0J
1J
1H
0L
1L
Voltage and starting method:
3 x 208-230V ΔDOL, (60 Hz)
3 x 208-230V Δ/ 460V Y, (60 Hz)
3 x 460V ΔY/D, (60 Hz)
3 x 575V ΔDOL, (60 Hz)
3 x 575V ΔY/D, (60 Hz)
A
B
C
Product generation:
1st generation
2nd generation
3rd generation
[-]
Q
Material variant:
Cast iron impeller, volute and stator housing
Stainless steel impeller

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5. Approvals
The SL1 and SLV pumps have been approved by CSA and FM, and the explosion-proof versions hold an FM type examination certificate
no.: 3035318.
5.1 Approval standards
These pumps have been approved by CSA and FM according to UL778, C22.2 no. 108 and FM 3600, FM 3615 and FM 3615.80.
5.2 Explanation to FM approval
The SL1 and SLV pumps have the following explosion protection classification: Class I, Division 1, Groups C and D, T4, T3, IP68.
6. Safety
For safety reasons, all work in tanks must be supervised by a
person outside the pump tank.
Tanks for submersible sewage and wastewater pumps may
contain sewage or wastewater with toxic and/or disease-causing
substances. Therefore, all persons involved must wear
appropriate personal protective equipment and clothing, and all
work on and near the pump must be carried out under strict
observance of the hygiene regulations in force.
The following warnings and notes also appear in a label
(delivered with the pump). Place the label near the control
box.
Standards Code Description
FM 3600
FM 3615
FM 3615.80
Class I = Explosive atmosphere is caused by gas or vapours.
Division 1 = Area classification
Groups C and D = Classification of gases
T4/T3 = Maximum surface temperature is 275 °F (135 °C) and 392 °F (200 °C)
IP68 = Enclosure class according to IEC 60529.
Warning
Pump installation in tanks must be carried out by
specially trained persons.
Work in or near tanks must be carried out
according to local regulations.
Warning
Persons must not enter the installation area
when the atmosphere is explosive.
Warning
It must be possible to lock the mains switch in
position 0. Type and requirements as specified in
National Electrical Code and all local codes.
Note
It is advisable to make all maintance and service
jobs when the pump is placed outside the tank.
Warning
Make sure that the lifting bracket is tightened
before attempting to lift the pump. Tighten if
necessary. Carelessness during lifting or
transportation may cause injury to personnel or
damage to the pump.
Warning
Risk of electric shock. Do not remove cable and
strain relief. Do not connect conduit to pump.
Warning
Risk of electric shock
This pump has not been approved for use in
swimming pools or marine areas.
FM
Warning
To reduce risk of electric shock, see installation
and operating instructions for guidance in proper
installation.
Warning
To reduce risk of electric shock, install only on a
circuit protected by a ground-fault circuit
interrupter (GFCI).
Note
Acceptable for indoor and outdoor use.
Note
Submersible pump.
Caution
Provide suitable motor protection based on the
electrical ratings.
Caution
Enclosure type 3.
Caution
This pump has been tested with water only.
Caution
Use wih approved motor protective circuit
breaker matching motor input in full-load
amperes with overload element(s) selected or
adjusted in accordance with control instructions.