background image

English

44

WILO SE 10/2013

10 Faults, causes and remedies

The operations indicated in the table below must 
be carried out ONLY by expert personnel. Never 
carry out any work without having first carefully 
read and understood this manual. Never attempt 
to carry out repairs of materials and equipment 
without a fully and correctly understanding of this 
one. 

If people do not have sufficient knowledge about 
the product and the operating logic required by 
specific standards relatives to fire extinguishing 
systems, or if people do not have the technical 
skills needed, contact Wilo to make regular main-
tenance checks.

Faults

Causes

Remedy

The control panel is off. 

No power supply

Make sure that the supply line is con-
nected and voltage is present.

Out-of-order fuses 

Check and/or replace fuses. Check and/
or replace the control panel.

Auxiliary circuit failing 

Check voltage of primary and secondary 
circuits in the transformer. Check and/or 
replace fuses of the transformer. 

Motor does not start 

No power supply

Check connections and electric control 
panel. 

Short-circuit in winding

Check windings of motor 

Control panel faulty/Wrong connections  Check connections
Overload

Check sizing of the supply line. Make 
sure that the pump is not blocked.

Pump works, but does not supply water, 
or has a low flow/height.

Wrong direction of rotation 

Invert two of the motor supply phases. 

Excessive suction depth. Pump in cavita-
tion 

Review calculations to suit pump NPSHr.

Wrong diameter of the suction pipe and 
valves Pump in cavitation 

Review calculations to suit pump NPSHr.

Air inlet in the suction line 

Make sure that there are no leaks in the 
suction line. Check the distance 
between the suction points if several 
pumps have been installed. Fit anti-vor-
tex plates.

Valves partially/totally closed 

Open the suction and discharge valves. 

Worn pump 

Check and repair. 

Pump rotor obstructed 

Check and repair. 

Strainer/filters obstructed 

Check and repair. 

Coupling between pump and worn 
motor 

Check and repair. 

Motor fails to reach nominal speed or has 
vibrations

Check speed,
see above

Pump bearings are worn or not oiled

Lubricate with lubricators.

Motor fails to reach nominal speed 

Too low voltage at motor terminals 

Check power supply voltage, connec-
tions and the cross-section of the cables 
in the power line. 

False contacts in the power contactor or 
problem with the start-up device 

Check and repair. 

Phase failure 

Check line, connection and fuses. 

False contacts in power supply cables
 

Check terminal fixing. 

Winding to the earth or short-circuit 

Dismantle the motor, repair or change it.

Non-operational pumps once started 

Incorrect sizing of power line 

Check and replace.

Insufficient voltage 

Check power supply. 

Pump sizing 

Remove the rotating parts then check. 

Presence of voltage on motor carter

Contact between line cables and earth

Correct connections. 

Humid or old Insulation 

Wipe motor or re-wind it. 

Short-circuit between terminals and 
external housing

Check insulation between terminals and 
carter. 

Summary of Contents for SiFire

Page 1: ...re EN Pioneering for You 4 188 030 Ed 01 2013 11 Wilo de Einbau und Betriebsanleitung en Installation and operating instructions fr Notice de montage et de mise en service nl Inbouw en bedieningsvoors...

Page 2: ...Fig 1 Fig 2a A 2 2 E B C D...

Page 3: ...Fig 2b Fig 3 21 25 26 13 11 12 19 15 22 27 20 24 23 2 1 14 4 16 7 5 6 10 18 17 9 9 10 8 3...

Page 4: ...Fig 4 Fig 5...

Page 5: ...Fig 6a 3 5 D D 4 D 2 3 C min max 1 8 m s Fig 6b min 3 5 D D 4 D max 2 m 2 3 C max 1 8 m s...

Page 6: ...Fig 7 Fig 8 max 3 2 m min A B C D 2 4 5 6 3 8 7 1...

Page 7: ...Fig 9a Fig 9b A B C D 800 800 800...

Page 8: ...Fig 1a Fig 9a variant Fig 9b variant A B C D 800 800 800...

Page 9: ...Fig 10 Fig 11 1 2 1 2 1...

Page 10: ......

Page 11: ...de Einbau und Betriebsanleitung 5 en Installation and operating instructions 29 fr Notice de montage et de mise en service 51 nl Inbouw en bedieningsvoorschriften 75...

Page 12: ...sel pump 16 Connection for priming circuit of main pump 17 Main pump 18 Jockey pump 19 Tank for fuel leakages 20 Fuel tank vent valve 21 Fuel level gauge 22 Drain for cleaning of deposit in fuel tank...

Page 13: ...ructions Wilo SiFire System 27 Fig 9a Variant Exhaust air for combustion and cooling diesel engine Fig 9b A Muffler B Exhaust thermal protection C Condensation drain D Expansion joint Fig 10 Automatic...

Page 14: ...7 Installation and electrical connection 34 7 1 Installation 34 7 2 Safety recommendations 34 7 3 Control and environment 35 7 4 Electrical connection 35 7 4 1 General 35 7 4 2 Hydraulic connection 36...

Page 15: ...t be adhered to but also the special safety instructions with danger symbols included under the following main points 2 1 Danger symbols used in this operating instruction Symbols General danger symbo...

Page 16: ...l installation and maintenance work iscarried out by authorised and qualified personnel who are sufficiently informed from their own detailed study of the operating instructions Work on the product un...

Page 17: ...eproof and ventilated enough with necessary spaces around pumps for movements and regular main tenance Theroommust beinaccordancewiththe EN 12845 standards Airflow for ventilation and for cooling of e...

Page 18: ...requirements trans port handling difficulties particular perform ances etc using the main components described below main normalised back pull out pumps coupled to an electrical motor or diesel engin...

Page 19: ...tion class IP 54 6 3 Function of the product The operational logic for the fire extinguishing unit is based on the cascade calibration of the pressure switches for pump starting The jockey pump of pre...

Page 20: ...void access to the system for unauthorised persons The booster is a fire equipment using AUTO MATIC START and MANUAL STOP ONLY For this reason there must have a clearly visible sign in the system room...

Page 21: ...ous tic and vibration levels In order not to transmit tension to the frame get the defects of alignment between theanchorsandthesupport surfacewith metal shims as shown in the figure 4 CAUTION Risk of...

Page 22: ...following points are checked pipes are positioned in such a way as to avoid air accumulation suction pipes between the intake point and the pumping has to be as shortest as possible Its diameter must...

Page 23: ...be performed by qualified people 8 1 General preparations and check Before switching on for the first time check that the wiring has been done correctly particularly the earth connection To make sure...

Page 24: ...and electrical connections indicated in this manual are cor rectly done Make sure the valves at the suction and discharge side of the pump are open Make sure the pump is primed and filled with water C...

Page 25: ...gas in the pump room Leakage on mechanical seal Vibrations noise and excessive temperatures could be due to misalignment of motor pump coupling 8 4 3 Commissioning jockey pump Manual Start Follow com...

Page 26: ...o start the electric pump through the float signal Then follow pump box instructions to check the correct functioning of automatism Pump with diesel engine Before testing make sure that the return cir...

Page 27: ...iesel engine it is advisable to disconnect the positive terminal of battery to prevent undesired start ups DANGER Risk of fatal injury Before changing the engine oil make sure the temperature is below...

Page 28: ...ssure on diesel pump and the cooling circuit water flow CAUTION Risk of malfunction of the pump Always top up fuel and other fluids after per forming the tests 9 3 Test of automatic start of diesel pu...

Page 29: ...hen origi nal spare parts are replaced by other parts with different characteristics 9 5 Residual risks during facility management WARNING Risk of cut Sharp edges orany not protected threaded parts en...

Page 30: ...h Pump in cavita tion Review calculations to suit pump NPSHr Wrong diameter of the suction pipe and valves Pump in cavitation Review calculations to suit pump NPSHr Air inlet in the suction line Make...

Page 31: ...ck and tighten Sliding between fan and motor and between coupling and coupling cover cap etc Guarantee the correct distance and re assemble Foreign parts in motor or pump Dismantle and remove Not alig...

Page 32: ...re Unusual heating too high water oil temperature Pump overload frictions Dismantle and check Coupling out of axis Align correctly Ambient temperature higher than 40 C Ventilate the space Insufficient...

Page 33: ...perations andhandling thefollowingmaterialsmustbesent to centres specialised in the collection and removal of waste Electromechanical and electronic components Electric cables Batteries Strainers Oil...

Page 34: ......

Page 35: ......

Page 36: ...omagnetycznej 2004 108 WE 2004 108 EG pou it harmoniza n normy zejm na stosowanymi normami zharmonizowanymi a w szczeg lno ci viz p edchoz strana patrz poprzednia strona EL TR RO 3 5 7 5 99 CE Uygunlu...

Page 37: ...20 27442100 Indonesia WILO Pumps Indonesia Jakarta Selatan 12140 T 62 21 7247676 Ireland WILO Ireland T 353 61 227566 Italy Borromeo Milano T 39 25538351 Kazakhstan WILO Central Asia 050002 Almaty T 7...

Page 38: ...Pioneering for You WILO SE Nortkirchenstra e 100 D 44263 Dortmund Germany T 49 0 231 4102 0 F 49 0 231 4102 7363 wilo wilo com www wilo com...

Reviews: