Wilo Wilo-SiFire FIRST User manual

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Wilo-SiFire FIRST
4243594 • Ed.01/2020-12
en Installation and operating instructions

en
Installation and operating instructions Wilo-SiFire FIRST 3
Table of contents
1 General information ................................................................................................................................................................. 5
1.1 About these instructions ..................................................................................................................................................................................5
1.2 Copyright ............................................................................................................................................................................................................5
1.3 Subject to change..............................................................................................................................................................................................5
1.4 Exclusion from warranty and liability..............................................................................................................................................................5
2 Safety......................................................................................................................................................................................... 5
2.1 Symbols and signal words in the operating instructions .............................................................................................................................5
2.2 Personnel qualifications....................................................................................................................................................................................7
2.3 Electrical work ....................................................................................................................................................................................................7
2.4 Transport.............................................................................................................................................................................................................7
2.5 Installing/dismantling........................................................................................................................................................................................8
2.6 Operating fluids..................................................................................................................................................................................................8
2.7 Operator responsibilities...................................................................................................................................................................................8
3 Application/use......................................................................................................................................................................... 8
3.1 Intended use.......................................................................................................................................................................................................9
3.2 Improper use.......................................................................................................................................................................................................9
4 Product description.................................................................................................................................................................. 9
4.1 Structure of pressure-boosting system .........................................................................................................................................................9
4.2 Mode of operation .......................................................................................................................................................................................... 11
4.3 Frequency converter operation .................................................................................................................................................................... 11
4.4 Technical data .................................................................................................................................................................................................11
4.5 Type key........................................................................................................................................................................................................... 11
4.6 Scope of delivery............................................................................................................................................................................................. 12
4.7 Accessories ...................................................................................................................................................................................................... 12
5 Transportation and storage................................................................................................................................................... 12
5.1 Delivery............................................................................................................................................................................................................. 12
5.2 Transport.......................................................................................................................................................................................................... 12
5.3 Storage ............................................................................................................................................................................................................. 14
6 Installation and electrical connection .................................................................................................................................. 14
6.1 Personnel qualifications................................................................................................................................................................................. 14
6.2 Operator responsibilities................................................................................................................................................................................ 14
6.3 Information on monitoring devices.............................................................................................................................................................. 14
6.4 Installation ....................................................................................................................................................................................................... 15
6.5 Electrical connection...................................................................................................................................................................................... 22
7 Commissioning........................................................................................................................................................................ 23
7.1 Initial operations and general checks........................................................................................................................................................... 24
7.2 Procedure for commissioning ....................................................................................................................................................................... 24
7.3 Commissioning checks................................................................................................................................................................................... 25
8 Maintenance............................................................................................................................................................................ 28
8.1 General maintenance requirements............................................................................................................................................................. 30
8.2 Automatic pump start test ............................................................................................................................................................................ 30
8.3 Diesel pump automatic start test................................................................................................................................................................. 31
8.4 Periodic checks................................................................................................................................................................................................ 31
8.5 Residual risks during the operation of the system..................................................................................................................................... 33
9 Electric pump switchgear ...................................................................................................................................................... 34
9.1 Functions.......................................................................................................................................................................................................... 34
9.2 Parameter programming................................................................................................................................................................................ 40
9.3 Overview of the most important parameters ............................................................................................................................................. 42
9.4 Overview of alarms ......................................................................................................................................................................................... 43
9.5 Overview of functions....................................................................................................................................................................................46
9.6 Command menu.............................................................................................................................................................................................. 48
10 Switchgear of diesel pump .................................................................................................................................................... 49

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4 WILO SE 2020-12
10.1 Functions.......................................................................................................................................................................................................... 49
10.2 Parameter programming................................................................................................................................................................................ 54
10.3 Overview of the most important parameters ............................................................................................................................................. 56
10.4 Overview of alarms ......................................................................................................................................................................................... 61
10.5 Overview of functions....................................................................................................................................................................................67
10.6 Command menu.............................................................................................................................................................................................. 69
11 Jockey pump switchgear ....................................................................................................................................................... 70
11.1 Functions.......................................................................................................................................................................................................... 70
11.2 protective devices........................................................................................................................................................................................... 71
11.3 HMI of jockey pump........................................................................................................................................................................................ 71
11.4 Commissioning................................................................................................................................................................................................ 72
11.5 Parameter and menu description.................................................................................................................................................................. 72
11.6 Alarms............................................................................................................................................................................................................... 74
11.7 Maintenance .................................................................................................................................................................................................... 74
12 Faults, causes and remedies .................................................................................................................................................. 74
13 Spare parts............................................................................................................................................................................... 80
13.1 Recommended spare parts inventory.......................................................................................................................................................... 80
14 Disposal.................................................................................................................................................................................... 80
14.1 Information on the collection of used electrical and electronic products.............................................................................................. 80
14.2 Diesel motor..................................................................................................................................................................................................... 81
14.3 Batteries/rechargeable batteries .................................................................................................................................................................. 81

General information en
Installation and operating instructions Wilo-SiFire FIRST 5
1 General information
1.1 About these instructions These instructions form part of the product. Adherence to these instructions is a re-
quirement for the intended use and correct operation of the product:
ƒCarefully read the instructions prior to any activities on and with the product.
ƒKeep the instructions in an accessible place at all times.
ƒObserve all product specifications and labels on the device.
The language of the original operating instructions is German. Versions of these in-
structions in any other language are translations of the original operating instructions.
1.2 Copyright Copyright remains with Wilo. Do not:
ƒReproduce any content.
ƒDistribute any content.
ƒUse any content for competition purposes without authorisation.
Wilo shall reserve the right to change the listed data without notice and shall not be li-
able for technical inaccuracies and/or omissions.
1.3 Subject to change Wilo shall reserve the rights to make technical changes to the product and individual
components. The illustrations used may differ from the original and are intended as a
sample representation of the device.
1.4 Exclusion from warranty and liab-
ility Wilo shall specifically not assume any warranty or liability in the following cases:
ƒInadequate configuration due to inadequate or incorrect instructions by the operator
or the client
ƒNon-compliance with these instructions
ƒImproper use
ƒIncorrect storage or transport
ƒIncorrect installation or dismantling
ƒInsufficient maintenance
ƒUnauthorised repairs
ƒInadequate construction site
ƒChemical, electrical or electrochemical influences
ƒWear
2 Safety This chapter contains basic information for the individual phases of the life cycle. Fail-
ure to observe this information carries the following risks:
ƒInjury to persons from electrical, mechanical and bacteriological factors as well as
electromagnetic fields
ƒEnvironmental damage from discharge of hazardous substances
ƒProperty damage
ƒFailure of important functions of the product
Failure to observe the information contained herein will result in the loss of claims for
damages.
The instructions and safety instructions in the other chapters must also be ob-
served!
2.1 Symbols and signal words in the
operating instructions These installation and operating instructions set out safety instructions for preventing
personal injury and damage to property. These safety instructions are shown differ-
ently:
ƒSafety instructions relating to personal injury start with a signal word, are preceded
by a corresponding symbol and are shaded in grey.
DANGER
Type and source of the danger!
Consequences of the danger and instructions for avoidance.
ƒSafety instructions relating to property damage start with a signal word and are dis-
played without a symbol.

en Safety
6 WILO SE 2020-12
CAUTION
Type and source of the danger!
Consequences or information.
Signal words
ƒDANGER!
Failure to observe the safety instructions will result in serious injuries or death!
ƒWARNING!
Failure to follow the instructions can lead to (serious) injuries!
ƒCAUTION!
Failure to follow the instructions can lead to property damage and a possible total
loss.
ƒNOTICE!
Useful information on handling the product
Markups
‡Prerequisite
1. Work step/list
⇒ Notice/instructions
▶ Result
Notices on the product
Comply with all notices and marks on the product and keep them in legible condition.
ƒDirection of rotation/flow symbol
ƒMark for connections
ƒRating plate
ƒWarning stickers
Symbols
These instructions use the following symbols:
Danger caused by electric voltages
Danger of explosion
Danger of falling
General warning symbol
Warning – highly flammable substances
Warning – risk of poisoning
Warning – risk of chemical burns
Warning – risk of cutting injuries
Warning – hot surface

Safety en
Installation and operating instructions Wilo-SiFire FIRST 7
Warning – suspended loads
Warning – risk of environmental damage
Access prohibited
Do not touch
Smoking prohibited
Open flame prohibited
Useful information
2.2 Personnel qualifications ƒPersonnel have been instructed on locally applicable regulations governing accident
prevention.
ƒPersonnel have read and understood the installation and operating instructions.
ƒElectrical work: qualified electrician
Person with appropriate technical training, knowledge and experience who can
identify and prevent electrical hazards.
ƒInstallation/dismantling work: qualified fire protection specialist according to the
state of the art (EN12845)
Correct installation and connection of the system to the supply line
ƒOperation/control: Operating personnel, trained in the functioning of the complete
system
ƒSetting/operating the switchgear: specialised linguistic knowledge in the areas of
fire protection and motor technology.
–English
–French
–German
–Italian
–Spanish
ƒMaintenance work: trained fire protection specialist according to the state of the art
(EN12845)
Use and disposal of operating fluids, trained in the functioning of the complete sys-
tem
ƒLifting work: trained specialist for the operation of lifting devices
Lifting equipment, lifting gear, attachment points
2.3 Electrical work ƒHave electrical work carried out by a qualified electrician.
ƒEstablish power connections according to local fire protection regulations.
ƒEarth the system.
ƒBefore beginning work on the system, disconnect the system from the mains and
secure it against being activated again without authorisation.
WARNING!Systems with diesel motors have batteries. Also disconnect batteries!
ƒTrain personnel on how to make electrical connections.
ƒTrain personnel on the options for switching off the system.
2.4 Transport ƒWear the following protective equipment:
–Safety shoes
–Protective gloves
–Hard hat
ƒLocally applicable laws and regulations on work safety and accident prevention must
be complied with.

en Safety
8 WILO SE 2020-12
ƒDemarcate and cordon off the working area.
ƒKeep unauthorised persons away from the working area.
ƒOnly use legally specified and approved lifting gear.
ƒSelect the lifting gear based on the prevailing conditions (weather, attachment
point, load, etc.).
ƒAlways attach the lifting gear to the attachment points.
ƒStanding under suspended loads is not permitted. Do not move loads over work-
places where people are present.
2.5 Installing/dismantling NOTICE!Carry out installation and electrical connection according to EN12845!
ƒWear the following protective equipment:
–Safety shoes
–Safety gloves for protection against cuts
–Hard hat
ƒLocally applicable laws and regulations on work safety and accident prevention must
be complied with.
ƒDemarcate the working area.
ƒKeep the working area free of ice.
ƒKeep the working area free of any objects lying around.
ƒKeep unauthorised persons away from the working area.
ƒWork must always be carried out by two persons.
ƒDisconnect the system from the mains.
WARNING!System with diesel motor: Disconnect batteries!
ƒSwitch off the main switch and secure it against being activated by unauthorised
persons.
ƒCover open wells and water tanks or attach a safety harness.
ƒOnly use properly functioning hoisting gear.
ƒKeep away from the hoisting gear’s swivel range when hoisting the product.
2.6 Operating fluids Systems with diesel motors use the following operating fluids:
ƒDiesel fuel
ƒMotor oil
ƒBattery acid
These operating fluids are harmful to the environment and must not be released into
the soil or waters. Wipe up drips immediately!
Diesel fuel
ƒR40 Suspected carcinogenic effect
ƒR65 Hazardous to health: may cause lung damage if swallowed.
ƒR66 Repeated exposure may cause skin roughness or cracking.
ƒR51/53 Toxic to aquatic organisms, may cause long-term adverse effects in the
aquatic environment.
Battery acid
ƒR35 Causes severe burns.
2.7 Operator responsibilities ƒProvide installation and operating instructions in a language which the personnel can
understand.
ƒMake sure that the personnel have received the required training for the specified
work.
ƒProvide protective equipment. Ensure that the protective equipment is worn by per-
sonnel.
ƒEnsure that safety and information signs mounted on the system are always legible.
ƒTrain the personnel on how the system operates.
ƒEliminate any risk from electrical current.
ƒEquip hazardous components inside the entire system with an on-site guard.
ƒDemarcate and cordon off the working area.
ƒDefine personnel responsibilities to ensure safe working practice.
Observe the following points when handling the device:
ƒUse is not permitted for persons under the age of 16.
ƒPersons under the age of 18 must be supervised by a technician!
ƒUse is not permitted for persons with limited physical, sensory or mental capacities!

Application/use en
Installation and operating instructions Wilo-SiFire FIRST 9
3 Application/use
3.1 Intended use Unit for professional application in sprinkler systems:
ƒIncreasing and maintaining the water pressure
3.2 Improper use
DANGER
Explosion due to pumping of explosive fluids!
Pumping of highly flammable and explosive fluids (gasoline, kerosene, etc.) in pure
form is strictly prohibited. There is a risk of fatal injury due to explosion! The systems
are not designed for these fluids.
The systems must not be used for pumping:
ƒDrinking water
ƒFluids containing high quantities of abrasive contents (e.g. sand, gravel).
Intended use requires compliance with this manual. Any other use is regarded as non-
compliant with intended use.
4 Product description
4.1 Structure of pressure-boosting
system
A B
1
2
3
4
5
6
7
8
1
23
4
5
6
7
Fig.1: System structure
A: Pressure-boosting system with electric motor and jockey pump
1 Hydraulics (pump) 2 Pipework, on the pressure side
3 Main pump switchgear 4 Electric motor
5 Base frame 6 Hydraulics/motor coupling
7 Jockey pump 8 Jockey pump switchgear
B: Pressure-boosting system with diesel motor
1 Hydraulics (pump) 2 Pipework, on the pressure side
3 Main pump switchgear 4 Diesel motor
5 Base frame 6 Hydraulics/motor coupling
7 Batteries

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10 WILO SE 2020-12
C D
1
2
3
4
5
6
7
8
1
2
3
45
6
7
8
9
10
Fig.2: Structure of pressure outlet and fuel tank
C: Pipework, on the pressure side with jockey pump
1 Reducer 2 Non-return valve
3 Gate valve 4 Pipework
5 Start-up pressure switch 6 Pressure switch test valve
7Manometer 8Hydraulic connection for jockey
pump
D: Diesel tank
1 Collector tank 2 Level indicator
3 Floater cover 4 Floater
5Ventilation connection, min. dia-
meter: 1" 6Connection for manual fuel pump
7 Filling port 8 Housing
9 Drain 10 Base frame
System mounted on a steel base frame, consisting of the following elements:
ƒMain pump with electric or diesel motor
The hydraulics and the motor are connected to a coupling. This enables the hydraul-
ics, impeller and motor to be removed separately.
ƒVertical, multistage jockey pump
Enables small corrections in the event of leakages and keeps the pressure level in the
system constant.
ƒSwitchgear
One switchgear per pump.
ƒPipes in steel
ƒValves on discharge connection
The valves can be locked in the open position.
ƒNon-return valve
ƒButterfly valves, pressure gauges, pressure switches
ƒDual pressure switch
–Main pump start
–Pressure switch functional check
ƒPressure switch for automatic start and stop of the jockey pump
ƒBase frame for switchgears and pipework
ƒSeparate diesel tank, complete with accessories
ƒTwo batteries for starting the diesel motor (if available)

Product description en
Installation and operating instructions Wilo-SiFire FIRST 11
4.2 Mode of operation The operating logic of the system is based on an automatic start and a manual stop of
the main pump. This ensures that the maximum amount of water is pumped in the
event of fire. The main and jockey pumps are controlled by separate pressure switches.
After switching on the system and activating the automatic mode, the jockey pump is
started first. The jockey pump fills the system with water and keeps the system pres-
sure constant. To do this, the jockey pump switches on and off automatically.
NOTICE!Systems without jockey pumps must be filled with water manually!
When the water circuits in the sprinkler system are opened, the pressure in the system
rapidly decreases. The main pump is activated and the water is pumped into the sprink-
ler system. Once the water circuits in the sprinkler system are closed again, the system
restores the holding pressure.
NOTICE!The purpose of a sprinkler system is firefighting. Therefore, the main pump
is not automatically switched off! To switch off the main pump, press the “Stop”
button on the switchgear.
4.3 Frequency converter operation Do not connect and operate the system on a frequency converter. The pump and
switchgear are not designed to operate on a frequency converter.
4.4 Technical data
Ambient conditions
Operating pressure: ƒWithout jockey pump: max. 16bar
ƒWith jockey pump: max. 12bar
Jockey pump drop in pressure: 0.7bar at 100l/min
Ambient temperature, minimum: ƒWith electric motor: 4°C
ƒWith diesel motor: 10°C
Ambient temperature, maximum: ƒWithout jockey pump: 40°C
ƒWith jockey pump: 35°C
Relative humidity: max. 50% at 40°C
Installation altitude above sea-level: ƒWith electric motor: max. 1000m
ƒWith diesel motor: max. 300m
Atmospheric pressure: min. 760mmHg (*)
Water temperature: max. 25°C
Electrical data
Mains connection:
ƒElectric motor: 3~400V, 50Hz
ƒDiesel motor: 1~230V, 50Hz
ƒJockey pump: 1~230V, 50Hz
Voltage tolerance: ±10%
Energy efficiency class, electric motor
main pump:
IE3
Protection class, electric motor main
pump:
IP55
Protection class, electric motor jockey
pump:
IP55
Protection class, switchgear main pump: IP54
Protection class, switchgear jockey pump: IP65
ƒFor additional technical information, see the rating plate on the motor and the
switchgear!
ƒ* Deviations to standard test conditions: Note details on class deviations for electric
and diesel motors regarding temperature, elevation, atmospheric pressure and fuel
viscosity. See specific tables and diagrams in catalogues and maintenance manuals.
4.5 Type key
SiFire FIRST-40/200-180-7,5/0,55EJ
SiFire FIRST Unit for fire-extinguishing/sprinkler systems according to EN12845
40/200 Pump type
180 Impeller diameter of main pump

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12 WILO SE 2020-12
SiFire FIRST-40/200-180-7,5/0,55EJ
7,5/0,55 Rated power in kW: Electric or diesel motor/jockey pump
E
Motor version:
ƒE: pump with electric motor
ƒD: pump with diesel motor
JWith jockey pump
4.6 Scope of delivery ƒSystem ready for connection and pre-assembled on the base frame at the factory,
including functional and impermeability tests
ƒInstallation and operating instructions
ƒAccessories as ordered
4.7 Accessories ƒHorizontal break tank (500l) with float valve and alarm pressure switch for low water
level
ƒFlow meter
ƒSuction cone kit with eccentric suction cone and lever or handwheel butterfly valve
ƒVacuum gauge with valve
ƒValve with electric contact
ƒRubber compensator for connection of pipework
ƒSwitchgear for remote control of A and B alarm transmission
ƒAccessories for diesel motors:
–Density meter for battery
–Spare part kit
–Silencer (30dBA)
–Hydraulic heat exchanger (standard from 26.5kW motor power)
More details about installation, calibration and adjustment of the delivered accessories
can be found in the manufacturers’ instructions. Order accessories separately!
5 Transportation and storage
5.1 Delivery After receiving the shipment, this must be checked immediately for defects (damage,
completeness). Defects must be noted on the freight documentation! Furthermore, de-
fects must be notified to the transport company or the manufacturer immediately on
the day of receipt of shipment. Subsequently notified defects can no longer be asser-
ted.
5.2 Transport
WARNING
Hand and foot injuries due to lack of protective equipment!
Danger of (serious) injuries during work. Wear the following protective equipment:
• Safety gloves for protection against cuts
• Safety shoes
• Safety helmet must be worn if lifting equipment are used!
WARNING
Standing under suspended loads!
Never allow anyone to stand under suspended loads! Danger of (serious) injuries
caused by falling parts. Loads may not be carried over work places where people are
present!

Transportation and storage en
Installation and operating instructions Wilo-SiFire FIRST 13
WARNING
Diesel motor: Chemical burns due to battery acid!
The batteries are filled with an acidic solution. Contact with the acidic solution leads
to chemical burns! Always close batteries properly. When working on the battery,
wear acid-resistant protective gloves!
WARNING
Diesel motor: Environmental damage due to leaking operating fluids!
Systems with diesel motors use the following operating fluids: Motor oil, diesel fuel
and battery acid. These operating fluids are harmful to the environment and must
not be released into the soil or waters. Attach a suitable protective device (collecting
tank, oil mat...) during transport.
Risk numbers:
• Diesel fuel: R40, R65, R66, R51/53
• Battery acid: R35
CAUTION
Material damage due to incorrect attachment!
Do not attach lifting gear on the pressure-side pipework. The pipework is not de-
signed for these loads.
Ensure during attachment that the lifting gear does not impact the pipework. The
high bending stress may damage the pipework and lead to leakage!
A B
Fig.3: Transport
A Transport with forklift
B Transport with spreader beam and lifting gear
ƒThe unit is delivered on a pallet. The unit is packed in plastic wrap to protect it from
humidity and dirt. Remove the outer packaging only once the system is on site.
ƒIf the outer packaging is damaged or no longer present, apply suitable protection
from humidity and dirt.
ƒDemarcate and cordon off the working area.
ƒKeep unauthorised persons away from the working area.
ƒUse approved lifting gear: Sling chains or transport straps

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14 WILO SE 2020-12
ƒAttach lifting gear to base frame:
–Transport with forklift: Rectangular recesses in the base frame.
–Transport with lifting gear:
- Fixation eyes on base frame: Sling chain with sling hook with safety latch
- Eye bolt screwed into base frame: Sling chains or transport straps with shackle
ƒPermissible angle specification for the lifting gear:
–Fixation with sling hook: ±24°
–Fixation with shackle: ±8°
–If the angle specifications cannot be complied with, use spreader beam!
ƒSystem with diesel motor: Keep the unit horizontal during transport to prevent the
operating fluids in the motor (motor oil, diesel fuel and battery acid) from leaking.
5.3 Storage
WARNING
Diesel motor: Environmental damage due to leaking operating fluids!
Systems with diesel motors use the following operating fluids: Motor oil, diesel fuel
and battery acid. These operating fluids are harmful to the environment and must
not be released into the soil or waters. Ensure that no operating fluid leaks during
storage. Wipe up drips immediately, e.g. place an oil mat underneath.
Risk numbers:
• Diesel fuel: R40, R65, R66, R51/53
• Battery acid: R35
ƒPlace the system on a firm and even surface.
ƒAmbient conditions: 10°C...40°C, max. humidity: 50%.
ƒDry hydraulics and pipework before packing.
ƒProtect the system from humidity and dirt.
ƒProtect the system from direct exposure to sunlight.
6 Installation and electrical con-
nection
6.1 Personnel qualifications ƒElectrical work: qualified electrician
Person with appropriate technical training, knowledge and experience who can
identify and prevent electrical hazards.
ƒInstallation/dismantling work: qualified fire protection specialist according to the
state of the art (EN12845)
Correct installation and connection of the system to the supply line
ƒLifting work: trained specialist for the operation of lifting devices
Lifting equipment, lifting gear, attachment points
6.2 Operator responsibilities ƒObserve locally applicable accident prevention and safety regulations.
ƒThe installation company is responsible for ensuring that the entire completed fire
protection system complies with the appropriate standards. The installation com-
pany provides the operator with the “Installation in accordance with EN12845” cer-
tification as well as the required documents.
ƒObserve local regulations for operating fire protection systems.
ƒCheck that the available consulting documents (installation plans, installation loca-
tion, inflow conditions) are complete and accurate.
ƒProvide protective equipment. Ensure that the protective equipment is worn by per-
sonnel.
ƒDemarcate the working area.
ƒKeep unauthorised persons away from the working area.
ƒThe foundation must be of sufficient stability in order to allow the system to be
fixed in a secure and functional manner. The operator is responsible for the provision
and suitability of the foundation!
ƒObserve all regulations for working with heavy loads and under suspended loads.
6.3 Information on monitoring
devices
ƒFor the main pump, only a fuse protection against short-circuiting is provided. The
fuse protection in accordance with EN12845 is installed in the switchgear.
ƒDo not provide thermal overload protection for the main pump!

Installation and electrical connection en
Installation and operating instructions Wilo-SiFire FIRST 15
ƒFor the jockey pump, thermal overload protection is provided. The overload protec-
tion is installed in the switchgear for the jockey pump. Set overload protection to the
rated current of the jockey pump shown on the rating plate.
ƒDo not provide protection against low water!
ƒSystems with diesel motors: The switchgear controls the operating parameters of
the diesel motor. Alarm signals are signalled on the switchgear. Additional informa-
tion can be found in the chapter “Switchgear for diesel motors”.
6.4 Installation
DANGER
Danger of falling into wells and basins!
Open wells and water tanks for the water supply are located near the system. Danger
of falling. Cover open basins or attach a safety harness during installation.
DANGER
Diesel motor: Risk of personal injury due to inadvertent start!
The system with diesel motor has two starter batteries. This makes it possible for
the system to be activated inadvertently. Danger of serious injuries! Check that the
batteries are disconnected before installation. If the batteries are not disconnected,
have the batteries disconnected by a qualified electrician.
DANGER
Risk of fatal injury due to dangerous lone working practices!
Work in chambers and narrow rooms as well as work involving risk of falling are dan-
gerous work. Such work may not be carried out autonomously! A second person
must be present for safety reasons.
WARNING
Hand and foot injuries due to lack of protective equipment!
Danger of (serious) injuries during work. Wear the following protective equipment:
• Safety gloves for protection against cuts
• Safety shoes
• Safety helmet must be worn if lifting equipment are used!
NOTICE
Use only properly functioning lifting equipment!
Use only properly functioning lifting equipment to lift and lower the pump. Ensure
that the pump does not become jammed during lifting and lowering. Do not exceed
the maximum bearing capacity of the lifting equipment! Check that lifting equip-
ment is functioning properly before use!
NOTICE
Installations for sprinkler systems
The systems are used for fire protection. Installation and electrical connection must
be carried out in accordance with EN12845 and the local regulations!
6.4.1 Operating modes Operate the systems in accordance with EN12845:
ƒInlet mode
ƒSuction mode
If possible, operate the system in inlet mode. If inlet mode is not possible, operate the
system in suction mode.

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16 WILO SE 2020-12
6.4.1.1 Inlet mode
4xØ
1xØ
>2xØ
Ø = min. 65 mm
Qmax.: 1.8 m/s
MIN
MAX
V = min. 2/3max. 2 m
Fig.4: Example of installation: Inlet mode
ƒAt least 2/3 of the useable volume of the water tank is located above the centre line
of the pump.
ƒThe centre line of the pump must not be located more than 2m above the lowest
water level in the water tank.
ƒSuction line diameter: min. 65mm.
ƒFlow rate in the suction line: max. 1.8m/s at maximum volume flow.
ƒInstall a suction strainer in the suction line:
–Diameter: at least 1.5 times the nominal diameter of the suction line
–Grain/particle size: max. 5mm
–Install a shut-off valve between the filter and the water tank.

Installation and electrical connection en
Installation and operating instructions Wilo-SiFire FIRST 17
6.4.1.2 Suction mode
max. 3.2 m
2/31/3
>1 m
R = >2.5xØ
Ø = min. 80 mm
4xØ
>2xØ
MIN
MAX
Qmax. 1.5 m/s
Fig.5: Example of installation: Suction mode
ƒThe centre line of the pump must not be located more than 3.2m above the lowest
water level in the water tank.
ƒSuction line diameter: min. 80mm.
ƒFlow rate in the suction line: max. 1.5m/s at maximum volume flow.
ƒProvide a separate suction line for each pump. The suction lines must not be con-
nected to each other!
ƒInstall a foot valve at the lowest point in the suction line.
ƒInstall a suction strainer upstream of the foot valve:
–Diameter: at least 1.5 times the nominal diameter of the suction line
–Grain/particle size: max. 5mm
–The suction strainer must be able to be cleaned without draining the water tank.
ƒInstall one automatic priming device per pump:
–The priming device consists of: break tank, pipe with non-return valve descend-
ing to the discharge side of the pump.
–Break tank, pump and suction line must always be filled with water. NOTICE!Also
ensure that the water level is maintained in the event of a leakage in the foot
valve!
When the water level in the break tank goes down to 2/3 of the normal water
level, start the pump. NOTICE!If the pump does not start up, trigger an alarm at
a constantly monitored location!

en Installation and electrical connection
18 WILO SE 2020-12
6.4.2 Requirement at the installation
location
WARNING
Diesel motor: Environmental damage due to leaking operating fluids!
In systems with diesel motors, drops of operating fluids (motor oil, diesel fuel and
battery acid) can leak out. These operating fluids are harmful to the environment
and must not be released into the soil or waters. The installation location must be
fluid-resistant!
Set up installation location according to the specifications in EN12845! Only install
fire-extinguishing equipment at the installation location!
ƒSelect the site of the installation location, preferably in this order:
–A free-standing building.
–A building adjacent to a building with a sprinkler system. With direct access from
the outside!
–A room located in a building with a sprinkler system. With direct access from the
outside!
ƒEnsure fire resistance!
–At least: 60min
–Recommended: 120min
ƒDirectly and easily accessible from the outside at any time. Mark entrance with signs
and provide lighting.
ƒEnsure that only authorised personnel has access.
ƒProtection from rain, snow and frost.
ƒAmbient temperature and max. humidity:
–System with electric motor: 4°C...40°C
–System with diesel motor: 10°C...40°C
–Max. humidity: 50%
ƒEven installation surface. Sufficiently stable foundation.
NOTICE!The operator is responsible for the provision and suitability of the
foundation!
ƒTo ensure that the motor is sufficiently cooled, provide external openings for air cir-
culation. Note the following positioning of the ventilation openings:
–Supply air opening: bottom/near floor
–Exhaust air opening: top/near ceiling
ƒSystem with diesel motor: discharge exhaust fumes to the outside!
If the supply air and exhaust air openings are on the same side, provide an exhaust
pipe above the motor.
If the supply air and exhaust air openings are installed opposite each other (cross
ventilation), the exhaust pipe can be omitted. Ensure the following minimum air flow
Q in m³/h:
–Air-cooled motor: Q = 100 x motor power in kW
–Water-cooled motor: Q = 50 x motor power in kW
ƒProvide sprinkler protection in accordance with EN12845.
Sprinkler protection can be connected directly to the pipework on the pressure side
of the system.
ƒMaintain a clearance of 800mm around the system for maintenance work.

Installation and electrical connection en
Installation and operating instructions Wilo-SiFire FIRST 19
6.4.3 Setting up the system
A B
Fig.6: Installation types
A Fixation with anchor bolt
B Base frame sealed in concrete foundation.
‡Installation location prepared for the installation of the system.
‡Fixation material available: Anchor bolts in a suitable size for fixing the base frame
to the foundation.
1. Place the system at the installation location.
2. Drill holes through the base frame directly into the foundation. Borehole depth as
specified by the anchor bolt manufacturer.
3. Place the anchor bolts. Observe the manufacturer specifications.
4. When the anchor bolts have hardened in place, fix the base frame to the founda-
tion. Apply thread-locking fluid, e.g. Loctite, to screwed connections.
▶ System installed. Connect the pipes.
Alternatively, the system can also be sealed to the foundation. In this case, the base
frame is cast into the concrete foundation. The concrete foundation must weigh at
least 2.5times as much as the system.
6.4.4 Connecting the pipes
NOTICE
Connection to the public water supply network
When making the connection, observe the applicable regulations, guidelines and re-
quirements of the water suppliers.
In addition, take into account the special features of the location. E.G. If the suction
pressure is too high or too variable, install a pressure reducer.
To ensure that the system functions correctly, note the following points when con-
necting the pipework:
ƒAll pipes must be self-supporting. The system must not bear the weight of the pipe.
ƒConnect all pipes to the system without mechanical tension. Use compensators to
connect the pipes!
ƒLay the pipes so that air cushions do not form in the piping.
ƒPipes must be tight.
ƒPrevent foreign, pathogenic substances from entering the piping (infiltration).

en Installation and electrical connection
20 WILO SE 2020-12
1
2
3
4
5
6
7
Fig.7: Overview of connections
1 Main pump: Inlet connection 2 Hydraulic pressure relief valve
3 Main pump: Discharge connection 4 Break tank connection
5Jockey pump connection 6Discharge connection for sprinkler
system
7Sprinkler system connection for in-
stallation location
Connect the following circuits in accordance with EN12845:
ƒConnect the sprinkler system to the discharge connection.
ƒConnect the suction line to the inlet connection of the main pump.
–Keep pipe as short as possible.
–Connect the piping to the pump with a straight or conical pipe.
The pipe must be at least twice as long as the nominal diameter. The reducer
must run straight at the top. The angle must be no more than 20°.
–Install gate valve.
–Lay the piping horizontal or with a slight continuous gradient toward the pump.
–If the centre line of the pump is located above the lowest water level in the water
tank, install a foot valve.
–Dimensioning of NPSH value including all valves and fittings at max. fluid temper-
ature: The NPSH value at the pump connection must exceed the required NPSH
value by 1m (at max. volume flow).
ƒConnect a separate suction line to the inlet connection of the jockey pump.
ƒRecirculation circuit. Separate water circuit for manual operation and test runs.
ƒGuide hydraulic pressure relief valve back into the water tank or break tank.
ƒOptional circuits:
–Connect sprinkler system to protect the system.
–Connect volume flow measuring circuit to control the pump. NOTICE!Omitted
for systems with jockey pumps!
Run the return of the measuring circuit into the water tank or to the drain.
Connections
Pump type
Main pump: Inlet connection Pressure relief valve connection Main pump: Dis- charge connection Break tank connec- tion Jockey pump con- nection Discharge connec- tion for sprinkler system Sprinkler system connection for in- stallation location Jockey pump: Inlet connection
SiFire FIRST 32/... DN50 DNxxx DN32 DN50 DN25 DN50 DN25 Rp 1
SiFire FIRST 40/... DN65 DNxxx DN40 DN50 DN25 DN50 DN25 Rp 1
SiFire FIRST 50/... DN65 DNxxx DN50 DN50 DN25 DN65 DN25 Rp 1
SiFire FIRST 65/... DN80 DNxxx DN65 DN50 DN25 DN80 DN25 Rp 1
SiFire FIRST 80/... DN100 DNxxx DN80 DN50 DN25 DN125 DN25 Rp 1
SiFire FIRST 100/... DN125 DNxxx DN100 DN50 DN25 DN150 DN25 Rp 1