Sulzer Piranha S10 User manual

www.sulzer.com
Submersible Grinder Pump Type ABS Piranha S10 - PE125
6006085 (08.12.2020)
en
Installation, Operating and Maintenance Instructions

Sulzer reserves the right to alter specications due to technical developments !
2
Submersible Grinder Pump Type ABS Piranha
50 Hz: 60 Hz:
Ex (1 & Non-Ex Ex (1 Non-Ex Ex (2 & Non-Ex (3 Ex (2 & Non-Ex (3 Ex (2 & Non-Ex (3 Non-Ex (3
S10/4W-50 PE30/2C-50 S21/2 HH-50 S10/4-60 PE25/2W-C-60 PE80/2-E-60 S26/2W HH-60
S12/2-50 PE 55/2E-50 S10/4W-60 PE28/2-C-60 PE100/2-E-60
S12/2W-50 PE70/2E-50 S20/2-60 PE35/2-C-60 PE110/2-E-60
S13/4-50 PE90/2E-50 S20/2W-60 PE35/2W-C-60 PE125/2-E-60
S17/2-50 PE110/2E-50 S26/2W-60 PE45/2-C-60
S17/2W-50 S30/2-60 PE45/2W-C-60
S21/2-50 Approvals:
S26/2-50 (1 ATEX
Contents
1 Application areas �������������������������������������������������������������������������������������������������������������������������������������������������������3
1.1 Explosion-proof approval .............................................................................................................................................3
2 Performance Range ���������������������������������������������������������������������������������������������������������������������������������������������������3
3 Safety���������������������������������������������������������������������������������������������������������������������������������������������������������������������������4
3.1 Use of explosion-proof pumps in explosive zones.......................................................................................................4
3.2 Special conditions for safe use of S-type, explosion-proof motors. ............................................................................4
4 Technical data�������������������������������������������������������������������������������������������������������������������������������������������������������������5
4.1 Nameplate ....................................................................................................................................................................5
5 General design features �������������������������������������������������������������������������������������������������������������������������������������������6
5.1 Design features Piranha-S ...........................................................................................................................................6
5.2 Design features Piranha-S HH.....................................................................................................................................7
5.3 Design features Piranha-PE.........................................................................................................................................8
6 Types of operation and frequency of starting ��������������������������������������������������������������������������������������������������������9
7 Weights������������������������������������������������������������������������������������������������������������������������������������������������������������������������9
7.1 Piranha .........................................................................................................................................................................9
7.2 Chain (EN 818) .............................................................................................................................................................9
8 Lifting, transport and storage �������������������������������������������������������������������������������������������������������������������������������� 10
8.1 Lifting ..........................................................................................................................................................................10
8.2 Transport ....................................................................................................................................................................10
8.3 Storage .......................................................................................................................................................................10
8.3.1 Moisture protection of motor connection cable ..........................................................................................................10
9 Mounting and installation ��������������������������������������������������������������������������������������������������������������������������������������� 11
9.1 Installation example in concrete sump ....................................................................................................................... 11
9.2 Venting of the volute ................................................................................................................................................... 11
9.3 Discharge line............................................................................................................................................................. 11
10 Electrical connection����������������������������������������������������������������������������������������������������������������������������������������������� 12
10.1 Temperature monitoring ............................................................................................................................................. 13
10.2 Seal monitoring........................................................................................................................................................... 13
10.3 Wiring diagrams.......................................................................................................................................................... 13
10.4 Checking direction of rotation..................................................................................................................................... 14
10.5 Changing direction of rotation ...................................................................................................................................15
11 Commissioning �������������������������������������������������������������������������������������������������������������������������������������������������������� 15
12 Maintenance and service ���������������������������������������������������������������������������������������������������������������������������������������� 15
12.1 General maintenance hints ........................................................................................................................................ 16
12.2 Shredding system.......................................................................................................................................................16
12.3 Oil filling and changing ............................................................................................................................................... 16
12.3.1 Instructions on how to drain and fill the oil chamber.................................................................................................. 16
12.4 Oil-fill quantities.......................................................................................................................................................... 17
12.5 Bearings and mechanical seals ................................................................................................................................. 17
12.6 Maintenance of lifting stations in accordance with EN 12056. .................................................................................. 17
12.7 Cleaning...................................................................................................................................................................... 17
13 Troubleshooting guide �������������������������������������������������������������������������������������������������������������������������������������������� 18

3
Symbols and notices used in this booklet:
Presence of dangerous voltage.
Non-compliance may result in personal injury.
Danger of an explosion occurring.
ATTENTION! Non-observance may result in damage to the unit or negatively aect its performance.
NOTE: Important information for particular attention.
1 Application areas
Piranha submersible grinder pumps have been designed for the pumping of sewage containing faecal matter
from buildings and sites where the location is below the sewer level.
󰀨
cross-sectional area, in private, municipal, and industrial applications.
The regulations of DIN EN 12056-4 as well as other local codes should be observed.
ATTENTION The maximum allowable temperature of the medium pumped is 40 °C.
ATTENTION Leakage of lubricants could result in pollution of the medium being pumped.
1�1 Explosion-proof approval

Div. 1 Groups C and D (60 Hz, US), and ATEX 2014/34/EU [Ex II 2G Ex h db IIB T4 Gb] (50 Hz).
Operation of units as explosion-proof execution:
In hazardous areas care must be taken that during switching on and operation of the pumps the pump section

snore operation or dry running are not allowed!
NOTE! Ex protection methods type “c” (constructional safety) and type “k” (liquid immersion) in
accordance with EN ISO 80079-36, EN ISO 80079-37 are used.
2 Performance range
50 Hz 60 Hz
20
0123456789
4
4
0
8
12
16
20
24
28
32
36
40
44
48
52
56
60
64
68
72
68 10 12 14 16 18 20 22 24 26 28 30 32
Pir-S
Pir-PE
50 Hz
20
0123456789
4
4
0
8
12
16
20
24
28
32
36
40
44
48
52
56
60
64
68
72
76
80
84
88
68 10 12 14 16 18 20 22 24 26 28 30 32
Pir-PE
Pir-S
60 Hz

4
3 Safety
Safety Instructions for
Sulzer Products Type ABS” booklet. If anything is not clear or you have any questions as to safety make
certain to contact the manufacturer Sulzer.
This unit can be used by children aged 8 years and above, and persons with reduced
physical, sensory, or mental capabilities, or lack of experience and knowledge, when they
have been given supervision or instruction concerning the safe use of the device and
understand the hazards involved. Children must not play with the appliance. Cleaning and
user maintenance should not be performed by children without supervision.
3�1 Use of explosion-proof pumps in explosive zones�
1. Explosion-proof submersible pumps may only be operated with the thermal sensing system connected.
2. 
Protection Type EX (i), in accordance with IEC 60079-11.
3. Dismantling and repair of submersible explosion-proof motors may only be carried out by approved
personnel in specially approved work shops.
3�2 Special conditions for safe use of S-type, explosion-proof motors�
1. The integral supply cable shall be suitably protected from mechanical damage and terminated within an
appropriate termination facility.
2. Pump motors rated for use with 50/60 Hz sinusoidal supplies shall have the thermal protection devices
connected in such a way that the machine is isolated from the supply in the event of the stator reaching
130 °C.
3. 󰀨



5
4 Technical data
Detailed technical information is available in the technical data sheet Submersible Grinder Pump Type ABS
Piranha which can be downloaded from www.sulzer.com > Products > Pumps > Submersible Pumps.

4�1 Nameplate
We recommend that you record the data from the nameplate on the pump in the corresponding form below, and
maintain it as a source of reference for the ordering of spare parts, repeat orders and general queries.
Always state the pump type, item no. and serial no. in all communications.

serviced or repaired in a workshop that is not Ex-approved then it must no longer be used in hazardous
locations. In that case the Ex nameplate must be removed and replaced by the standard nameplate, or where

removed.
Standard nameplate
xx/xxx
xxxxxxx
1/min
Max.Liq.Temp: 40°C
Qmax m3/h Hmax m
Hmin m
Max m
Imp mm
P2: kW Insul. Cl.
P1: kW
UNV INA
1003-03-5
xx/xxx
1/min
Max.Liq.Temp: 40°C
Weight kg
IEC60034.30 IE3
Qmax m3/h Hmax m
Hmin m
Max m
Imp mm
P2: kW
P1: kW
UNV INA
1003-03-2
Piranha-S Piranha-PE
ATEX nameplate
Baseefa 03ATEX07..X Ex II 2G Ex h db IIB T4 Gb
0598
1001-04
Ex II 2G Ex h db IIB T4 Gb PTB 10 ATEX 1062 X
0598
1232-02
Piranha-PE
Piranha-S
Legend
Typ Pump type  Power factor pf
Nr Item number n Speed r/min
Sn Serial number Weight kg
xx/xxxx Production date (week/year) Max.Liq.Temp Maximum liguid temperature 40ºC
URated voltage V Qmax  m3/h
IRated current A DN Discharge diameter mm
Ph Number of phases Hmax Maximum head m
Hz  Hz Hmin Minimum head mm
P1 Rated input power kW Max. Maximim submergence debth m
P2 Rated output power kW Ø Imp. Impeller diameter mm
xxxxxxx Order number Insul. Cl. Insulation Class

6
5 General design features

The shredding system is located before the impeller and consists of a shredding rotor in combination with a

5�1 Design features Piranha-S
1
5
6
7
9
3
8
10
11
12
13
14
15
16
17
19
18
4
2
1233-00
Shredding system
1 Cast iron lifting handle and
steel shackle
2 Upper bearing - single row
3 Motor with thermal sensors
4 Motor housing
5 Motor chamber pressure
test point
6 Stainless steel shaft
7 Lower bearing - double row
8 Oil-lubricated lip seal
9 Bearing housing
10 Volute
11 Bottom plate adjustment
screw
12 Moisture sensor (DI)
13 Oil chamber
14 Oil chamber drain plug/
pressure test point
15 Mechanical seal
16 Impeller
17 Shredding rotor
18 
plate)
19 Bottom plate
17
18
1234-00

7
5�2 Design features Piranha-S HH
8
9
1
2
3
4
5
7
6
1574-00
1 Oil chamber 4 Impellers 7 Cutting ring
2 Oil chamber drain plug /
pressure test point
5 Bottom plate 8 Volute
6 Shredding rotor 9 󰀨
3 Mechanical seal

8
5�3 Design features Piranha-PE
󰀩
18
7
8
9
10
12
13
14
15
14
16
11
1
3
4
5
6
19
20
2
17
21
1235-00
1 Pressure release screw
2 Motor housing
3 10-pole terminal block
4 Moisture sensor (DI)
5 Oil chamber
6 Oil chamber drain plug/
pressure test point
7 Stainless steel lifting hoop
8 Upper bearing - single row
9 Motor with thermal sensors
10 Stainless steel shaft
11 Motor chamber
12 Lower bearing - double row
13 Bearing housing
14 Mechanical seals
15 Seal holding plate
16 Motor chamber drain plug/
pressure test point
17 Volute
18 Impeller
19 Shredding rotor
20 
plate)
21 Bottom plate

9
6 Types of operation and frequency of starting
Pumps of the Piranha-PE series have been designed for continuous operation S1 when either submerged or
dry-installed.
Piranha-S has been designed for intermittent use only (S3, 25%) when dry-installed, and continuous use (S1)
when submerged (minimum water level = 279mm).
7 Weights
NOTE: Weight on nameplate is for pump and cable only.
7�1 Piranha
Pedestal
bracket
and
fasteners
Skirtbase
(transportable)
Cable Pump
(without
cable)
kg (lbs) kg (lbs) kg (lbs) kg (lbs)
Piranha 400 V 1) 208 V 2) 230 V 2) 460 V 2) 600 V 2)
50 Hz
S10 - S17 4 (9) 4 (9) 0.2 (0.4) - - - - 30 (66)
S21 4 (9) 4 (9) 0.2 (0.4) - - - - 32 (71)
S21HH 4 (9) 4 (9) 0.2 (0.4) - 0.2 (0.4) - - 37 (82)
S26 4 (9) 4 (9) 0.2 (0.4) - - - - 35 (77)
PE 30/2D 4 (9) 4 (9) 0.3 (0.7) - - - - 82 (181)
PE 55/2D, 7 (15) 4 (9) 0.4 (0.9) - - - - 122 (269)
PE 70/2D 7 (15) 4 (9) 0.4 (0.9) - - - - 126 (278)
PE 90/2D, PE 110/2D 7 (15) 4 (9) 0.4 (0.9) - - - - 148 (326)
60 Hz
S10 & S20 4 (9) 4 (9) - 0.13 (0.29) 0.13 (0.29) 0.13 (0.29) - 30 (66)
S26 4 (9) 4 (9) - 0.13 (0.29) 0.13 (0.29) - -- 35 (77)
S26HH 4 (9) 4 (9) - - 0.13 (0.29) - - 37 (82)
S30 4 (9) 4 (9) - 0.13 (0.29) 0.13 (0.29) 0.13 (0.29) - 51 (112)
PE 25/2W 4 (9) 4 (9) - 0.18 (0.4) 0.18 (0.4) - - 77 (170)
PE 28/2D 4 (9) 4 (9) - 0.14 (0.3) 0.14 (0.3) 0.14 (0.3) 0.14 (0.3) 77 (170)
PE 35/2W 4 (9) 4 (9) - 0.23 (0.5) 0.23 (0.5) - - 77 (170)
PE 35/2D 4 (9) 4 (9) - 0.18 (0.4) 0.14 (0.3) 0.14 (0.3) 0.14 (0.3) 77 (170)
PE 45/2W 4 (9) 4 (9) - 0.23 (0.5) 0.23 (0.5) - - 80 (176)
PE 45/2D 4 (9) 4 (9) - 0.23 (0.5) 0.18 (0.4) 0.18 (0.4) 0.14 (0.3) 80 (176)
PE 80/2D 7 (15) 4 (9) - 0.23 (0.5) 0.23 (0.5) 0.18 (0.4) 0.14 (0.3) 124 (273)
PE 100/2D, 7 (15) 4 (9) - 0.23 (0.5) 0.23 (0.5) 0.23 (0.5) 0.18 (0.4) 153 (337)
PE 110/2D 7 (15) 4 (9) - 0.23 (0.5) 0.23 (0.5) 0.23 (0.5) 0.23 (0.5) 153 (337)
PE 125/2D 7 (15) 4 (9) - 0.23 (0.5) 0.23 (0.5) 0.23 (0.5) 0.23 (0.5) 153 (337)
1) Weight per metre. 2) Weight per foot.
7�2 Chain (EN 818)*
Length (m) Weight (kg)
WLL 320 WLL 400 WLL 630
1.6 0.74 - -
3 1.28 1.62 2.72
4 1.67 2.06 3.40
6 2.45 2.94 4.76
7 2.84 3.38 4.92

Weights of accessories, other than or in addition to those listed, must also be included when
specifying the working load of any lifting equipment. Please consult with your local Sulzer
representative prior to installation.

10
8 Lifting, transport and storage
8�1 Lifting
ATTENTION! Observe the total weight of the Sulzer units and their attached components!
(see nameplate for weight of base unit).
The duplicate nameplate provided must always be located and visible close to where the pump is installed (e.g.
at the terminal boxes / control panel where the pump cables are connected).
NOTE! Lifting equipment must be used if the total unit weight and attached accessories exceeds local
manual lifting safety regulations.
The total weight of the unit and accessories must be observed when specifying the safe working load of any
lifting equipment! The lifting equipment, e.g. crane and chains, must have adequate lifting capacity. The hoist
must be adequately dimensioned for the total weight of the Sulzer units (including lifting chains or steel ropes,
and all accessories which may be attached). The end user assumes sole responsibility that lifting equipment is

regulations. Worn or damaged lifting equipment must not be used and must be properly disposed of. Lifting
equipment must also comply with the local safety rules and regulations.
NOTE! The guidelines for the safe use of chains, ropes and shackles supplied by Sulzer are outlined in
the Lifting Equipment manual provided with the items and must be fully adhered to.
8�2 Transport
During transport, care should be taken that the pump is not dropped or thrown.

The unit should never be raised or lowered by the power cable.
Take note of the weight of the entire unit. The hoist and chain must be adequately dimensioned for
that weight and must comply with the current valid safety regulations.
All relevant safety regulations as well as general good technical practice must be complied with.
8�3 Storage
1. During long periods of storage the pump should be protected from moisture and extremes of cold or heat.
2. To prevent the mechanical seals from sticking it is recommended that occasionally the impeller is rotated by
hand.
3. If the pump is being taken out of service the oil should be changed before storage.
4. After storage the pump should be inspected for damage, the oil level should be checked, and the impeller
checked to ensure it rotates freely.
8�3�1 Moisture protection of motor connection cable
The motor connection cables are protected against the ingress of moisture along the cable by having the ends
sealed at the factory with protective covers.
ATTENTION! The ends of the cables should never be immersed in water as the protective covers
only provide protection against water spray or similar (IP44) and are not a water tight
seal. The covers should only be removed immediately prior to connecting the pumps
electrically.
During storage or installation, prior to the laying and connection of the power cable, particular attention should

ATTENTION! If there is a possibility of water ingress then the cable should be secured so that the
end is above the maximum possible ood level. Take care not to damage the cable or
its insulation when doing this.

11
9 Mounting and installation
The regulations covering the use of pumps in sewage applications together with all regulations
involving the use of explosion-proof motors should be observed.The cable ducting to the control panel
󰀨
circuits have been pulled through. In particular the safety regulations covering work in enclosed areas
in sewage plants should be observed together with general good technical practice.


which will prevent it from overturning or burrowing down. The pump can also be bolted down to the base or
suspended slightly by the lifting handle. Hoses, pipes and valves must be sized to suit the pump performance.
9�1 Installation example in concrete sump
1Sump cover
1005-00
2Venting line
3Sump cover
4 Protective duct to the
control panel for cable
5Chain
6
7
8Submersible pump
9 Concrete sump
10 Pedestal
11 Guide tube*
12 Discharge line
13 Non-return valve
14 Gate valve
15 Power cable to motor
* The tting of a guide tube is compulsory when the pump is installed on a pedestal.
ATTENTION For those applications subject to Regulation DIN 1986, a backwash loop should be
provided in the discharge line.
9�2 Venting of the volute
After lowering the pump into a sump full of water, an air lock may occur in the volute and cause pumping
problems. To clear the air lock, shake the pump, or raise the pump in the medium and then lower it again. If
necessary, repeat this venting procedure.
9�3 Discharge line
The discharge line must be installed in compliance with the relevant regulations.
DIN 1986/100 and EN 12056 applies in particular to the following:
- 

- The discharge line should not be connected to a down pipe.
- 
ATTENTION! The discharge line should be installed so that it is not aected by frost.
The vent line is connected by means of a push-on sleeve to the vertical outlet at the top of the collection tank.
It should be of constant cross-section (min. DN 70) and should have a continuous rise to above roof level.

12
10 Electrical connection
Before commissioning an expert should check that one of the necessary electrical protective devices
is available. Earthing, neutral, earth leakage circuit breakers, etc. must comply with the regulations

order.
ATTENTION! The power supply system on site must comply with local regulations with regard
to cross-sectional area and maximum voltage drop. The voltage stated on the
nameplate of the pump must correspond to that of the mains

accordance with applicable local National codes.
The power supply cable must be protected by an adequately dimensioned slow-blow fuse corresponding to the
rated power of the pump.
The incoming power supply as well as the connection of the pump itself to the terminals on the control
panel must comply with the circuit diagram of the control panel as well as the motor connection

In pump stations/tanks potential bonding must be carried out in accordance with EN 60079-14:2014 [Ex] or IEC
60364-5-54 [non-Ex] (Regulations for the installation of pipe lines, protective measures in power plants).
All relevant safety regulations as well as general good technical practice must be complied with.
ATTENTION! For use in the open air, the following regulations apply:

󰀨
In all installations, the power supply to the pump must be via a residual current device (e.g. RCD, ELCB, RCBO

current device the pump must be plugged into the power supply through a portable version of the device.

by the installer. Such motor control and protective devices must comply with the requirements of IEC standard
60947-4-1. They must be rated for the motor that they control, and wired and set/adjusted according to the
instructions provided by the manufacturer. In addtion, the overload protective device that is responsive to the
motor current shall be set / adjusted to 125% of the marked rated current.
Risk of electrical shock. Do not remove cord and strain relief and do not connect conduit to pump.
NOTE Please consult your electrician.

• Motor starting and/or running capacitor that complies with the requirements of IEC 60252-1 and rated as

• Motor contactor that complies with the requirements of IEC Standard 60947-4-1 and rated for the motor that it
controls.
PE1 Capacitor Ratings
Motor Start (µF) Run (µF) Voltage (V)
PE25/2W 180 70 450
PE35/2W 180 70 450
PE45/2W 180 70 450
NOTE The supply cord must be replaced by the manufacturer, its service agent or a similar
qualied person.

13
10�1 Temperature monitoring
Thermal sensors in the stator windings protect the motor from overheating.

Ex Piranha-S, and as an option in non-Ex Piranha-S.
ATTENTION: Explosion-proof pumps may only be used in explosive zones with the thermal
sensors connected.
10�2 Seal monitoring
Piranha-PE and Piranha-S pumps are supplied with a moisture sensor (DI), to detect and alert to the ingress of
water into the motor and oil chambers.
DI is optional with Piranha-S, and in the Ex-version monitors only the motor chamber.
ATTENTION: If the DI seal monitoring is activated the unit must be immediately taken out of
service. Please contact your Sulzer Service Centre.
NOTE! Running the Piranha-PE pump with the thermal and/or moisture sensors
disconnected will invalidate related warranty claims.
10�3 Wiring diagrams
Single phase:
1
1
2 3 4 5 6
60 Hz: PE R S C 1 2 3
DIF1 FOR
50 Hz:
S C PE
1
1
2 3 4 5
F1 FOR50 Hz: S C PE
R C S PE
1
blk gry br
50 Hz:
2. 3.1.
NOTE:
R = Run
S = Start
C = Neutral (Common)

DI = Seal monitor
PE = Earth
blk = Black
gry = Grey
br = Brown
1236-00
Three phase:
U1 V1 W1 V2 W2 U2 F1 FO DI PE
1 2 3 4 5 6 7 8 9
U V W F1 FO DI PE
1 2 3 4 5 6
60 Hz: PE T1 T2 T3 1 2 3
50 Hz:
U V W F1 FO PE
1 2 3 4 5
50 Hz:
U V W PE
50 Hz:
blk gry br
6.
5.
7.
4.
1237-00

14
Single phase Three phase
1� 2� 3� 4� 5� 6� 7�
Piranha
50 Hz
S10/4
S12/2
S17/2
S10/4-Ex
S12/2-Ex
S17/2-Ex
S10/4
S10/4-Ex
S12/2
S12/2-Ex
S17/2
S17/2-Ex
S13/4
S12/2
S17/2
S21/2
S21/2 HH
S26/2
S13/4-Ex
S12/2-Ex
S17/2-Ex
S21/2-Ex
S26/2-Ex
S13/4
S13/4-Ex
S12/2
S12/2-Ex
S17/2
S17/2-Ex
S21/2
S21/2-Ex
S26/2
S26/2 (DO5)*
S26/2-Ex
PE30/2C-Ex
PE55/2E-Ex
PE70/2E-Ex
PE90/2E-Ex
PE110/2E-Ex
Piranha
60 Hz - -
S10/4
S10/4-Ex
S20/2
S20/2-Ex
S26/2
S26/2-Ex
S26/2-HH
PE25/2C-Ex
PE35/2C-Ex
PE45/2C-Ex
- -
S10/4
S10/4-Ex
S20/2
S20/2-Ex
S30/2
S30/2-Ex
PE28/2C-Ex
PE35/2C-Ex
PE45/2C-EX
PE80/2E-EX
PE100/2E-EX
PE110/2E-EX
PE125/2E-EX
-
* 400/695V
ATTENTION: It is important to use the correct capacitors with single phase pumps, use of incorrect capacitors will lead to motor burn-out.
10�4 Checking direction of rotation


When checking the direction of rotation, the unit should be secured in such a manner that no danger

the hydraulic system!
When checking the direction of rotation, or when starting the unit, pay attention to the START
REACTION. This can be very powerful and cause the pump to jerk in the opposite direction to the
direction of rotation.
ATTENTION:
When viewed from above, the
direction of rotation is correct
if the impeller rotates in a
clockwise manner.
NOTE:
The start reaction is
anti-clockwise.
NOTE: If a number of units are connected to a single control panel then each unit must be
individually checked.
ATTENTION! The mains supply to the control panel should have a clockwise rotation. If the leads
are connected in accordance with the circuit diagram and lead designations, the
direction of rotation will be correct.

15
10�5 Changing direction of rotation

If the direction of rotation is incorrect then this is altered by changing over two phases of the power supply cable
in the control panel. The direction of rotation should then be rechecked
NOTE: The direction of rotation measuring device monitors the direction of rotation of the
mains supply or that of an emergency generator.
11 Commissioning
In explosive zones, care must be taken that during switching on and operation, the pump section is

given in the data sheet is observed. Other types of operation e.g. snore operation or dry running are
not allowed.
Before commissioning the unit should be checked and a functional test carried out. Particular attention should
be paid to the following:
- Have the electrical connections been carried out in accordance with regulations?
- Have the thermal sensors been connected?
- 
- Is the motor overload switch correctly set?
- 
- Was the sump cleaned out?
- 
- Is the direction of rotation correct - even if run via an emergency generator?
- Are the level controls functioning correctly?
- 
- 
- Has the volute been vented (see Sec. 9.2) ?
12 Maintenance and service
To avoid danger if the power cable is damaged, it must be replaced by the manufacturer or its service

Before commencing any maintenance work the unit should be completely disconnected from the

on.

When carrying out any repair or maintenance work, the safety regulations covering work in enclosed
areas of sewage installations as well as good general technical pratices should be followed.
NOTE The maintenance instructions given here are not designed for “do-it-yourself”
repairs as special technical knowledge is required.

16
12�1 General maintenance hints

Lubricated-for-life ball bearings, together with monitoring devices, ensure optimum pump reliability provided that
the pump has been connected and operated in accordance with the operating instructions. However, should a
malfunction occur, do not improvise, but ask your Sulzer Customer Service Department for assistance.
󰀨
the thermal sensors of the thermo-control system, or by the seal monitoring system (DI).
Regular inspection and care is recommended to ensure a long service life. Service intervals vary for Piranha

Sulzer Service Centre. A maintenance contract with our Service Department will guarantee the best technical
service.
When carrying out repairs, only original spare parts supplied by the manufacturer should be used.
Sulzer warranty conditions are only valid provided that any repair work has been carried out in an Sulzer appro-
ved workshop and where original Sulzer spare parts have been used.
NOTE ATEX- and FM-rated Piranha pumps are approved for use in hazardous locations. If an Ex-rated
pump is serviced or repaired in a workshop that is not Ex-approved then it must no longer be
used in hazardous locations. In that case the Ex nameplate must be removed and replaced by
the standard nameplate, or where instead a standard and a secondary Ex nameplate is tted to
the pump the secondary nameplate must be removed.
12�2 Shredding system
The shredding system of the Piranha is a wearing part, and as such may need to be replaced. A reduction
in cutting performance can reduce the output. We recommend that the shredding system is inspected
regularly. This is particularly so if sewage containing sand is being pumped. Regular inspection and care is
recommended to ensure a long service life.
The Sulzer Service Organisation would be pleased to advise you on any applications you may have and to
assist you in solving your pumping problems.
12.3 Oilllingandchanging
The motor chamber (Piranha-PE), and the oil chamber between the motor and the hydraulic section (Piranha

An oil change is only necessary:
• 
• if the DI moisture sensor detects an ingress of water into the oil chamber or motor chamber.
• after repair work that requires draining of the oil.
• if the pump is being taken out of service the oil should be changed before storage.
12.3.1 Instructionsonhowtodrainandlltheoilchamber
1. Loosen the plug screw enough to release any pressure that may have built-up, and re-tighten (for location
see pages 6, 7 and 8).
Before doing so, place a cloth over the plug screw to contain any possible spray of oil as the pump-
de-pressurises.
2. Place the pump in a horizontal position on a waste oil sump with the drain hole underneath.
3. Remove the plug screw and seal ring from the drain hole.
4. After the oil is fully drained rotate the pump so that the drain hole is positioned to the top.
5. 
6. 

17
12.4 Oil-llquantities
Specication


12�5 Bearings and mechanical seals

Shaft sealing is by means of double mechanical seals (Piranha-PE), and mechanical seal / lip seal (Piranha-S).
ATTENTION! Once removed, bearings and seals must not be re-used, and must be replaced with
genuine Sulzer spare parts in an approved workshop.
12�6 Maintenance of lifting stations in accordance with EN 12056�
It is recommended that the lifting station be inspected monthly and its function checked.

intervals:
• in commercial premises - every three months.
• in apartment blocks - every six months.
• in a single family home - once a year.

12�7 Cleaning
If the pump is used for transportable applications, then in order to avoid deposits of dirt and encrustation it

that the functioning of the automatic level control system be checked regularly. By switching the selection switch

be cleaned. After cleaning, the pump should be rinsed out with clear water and a number of automatic pumping
cycles carried out.
Piranha Motor Oil Chamber (litres)
S S10/4 - S26/2 0.53
PE PE30/2-C 0.43
PE55/2-E - PE125/2-E 0.68

18
13 Troubleshooting guide
Fault Cause Fix
Pump does not
run
Moisture sensor shutdown. Check for loose or damaged oil plug, or locate and
replace faulty mechanical seal / damaged o-rings.
Change oil.1)
Air lock in volute Shake or raise and lower the pump repeatedly
until resulting air bubbles no longer appear at
surface level.
Level control override. 

Impeller jammed. Inspect and remove jammed object. Check gap
between impeller and bottom plate and adjust if
necessary.
Gate valve closed, non-return valve
blocked.
Open gate valve, clean blockage from non-return
valve.
󰀨
intermittently
Temperature sensor shutdown. Motor will restart automatically when pump cools
down.
Check thermal relay settings in control panel.
Check for impeller blockage.
If none of above, a service inspection is required.1)
 Wrong direction of rotation. Change rotation by interchanging two phases of
the power supply cable.
Gap too wide between impeller and
bottom plate
Reduce gap.
Gate valve partially open. Open valve fully.
Excessive noise or
vibration
Defective bearing. Replace bearing.1)
Clogged impeller. Remove and clean hydraulics.
Wrong direction of rotation. Change rotation by interchanging two phases of
the power supply cable.
Before commencing any inspection or repair work the pump should be completely disconnected from the

1) Pump must be taken to approved workshop.

19
SERVICE LOG
Date Hours of
Operation
Comments Sign

Sulzer Pump Solutions Ireland Ltd. Clonard Road, Wexford, Ireland
Tel. [phone]. www.sulzer.com