Wilo Atmos GIGA-NF User manual

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Wilo-Atmos GIGA-NF
4243597 • Ed.02/2022-02
en Installation and operating instructions

en
Installation and operating instructions Wilo-Atmos GIGA-NF 3
Table of contents
1 General information ................................................................................................................................................................. 5
1.1 About these instructions ..................................................................................................................................................................................5
1.2 Copyright ............................................................................................................................................................................................................5
1.3 Subject to change..............................................................................................................................................................................................5
2 Safety......................................................................................................................................................................................... 5
2.1 Identification of safety instructions................................................................................................................................................................5
2.2 Personnel qualifications....................................................................................................................................................................................6
2.3 Electrical work ....................................................................................................................................................................................................7
2.4 Transport.............................................................................................................................................................................................................7
2.5 Installing/dismantling........................................................................................................................................................................................7
2.6 During operation ................................................................................................................................................................................................8
2.7 Maintenance tasks.............................................................................................................................................................................................9
2.8 Drive.....................................................................................................................................................................................................................9
2.9 Operator responsibilities...................................................................................................................................................................................9
3 Application/use......................................................................................................................................................................... 9
3.1 Intended use.......................................................................................................................................................................................................9
3.2 Improper use.......................................................................................................................................................................................................9
4 Product description.................................................................................................................................................................. 9
4.1 Design..................................................................................................................................................................................................................9
4.2 Operation with frequency converter............................................................................................................................................................ 10
4.3 Technical data .................................................................................................................................................................................................10
4.4 Type key........................................................................................................................................................................................................... 11
4.5 Scope of delivery............................................................................................................................................................................................. 11
4.6 Accessories ...................................................................................................................................................................................................... 11
4.7 Anticipated noise levels ................................................................................................................................................................................. 11
4.8 Permissible forces and torques on the pump flanges................................................................................................................................ 12
5 Transportation and storage................................................................................................................................................... 13
5.1 Delivery............................................................................................................................................................................................................. 13
5.2 Transport.......................................................................................................................................................................................................... 13
5.3 Storage ............................................................................................................................................................................................................. 15
6 Installation and electrical connection .................................................................................................................................. 16
6.1 Personnel qualifications................................................................................................................................................................................. 16
6.2 Operator responsibilities................................................................................................................................................................................ 16
6.3 Preparing the installation............................................................................................................................................................................... 16
6.4 Setting up the pump by itself (variantB, Wilo variant key) ...................................................................................................................... 17
6.5 Installing the pump unit on a base ............................................................................................................................................................... 17
6.6 Pipework........................................................................................................................................................................................................... 19
6.7 Aligning the unit.............................................................................................................................................................................................. 20
6.8 Electrical connection...................................................................................................................................................................................... 23
7 Commissioning........................................................................................................................................................................ 24
7.1 Personnel qualifications................................................................................................................................................................................. 25
7.2 Filling and venting........................................................................................................................................................................................... 25
7.3 Checking the direction of rotation...............................................................................................................................................................25
7.4 Switching on the pump..................................................................................................................................................................................25
7.5 Switching frequency....................................................................................................................................................................................... 26
8 Shutdown................................................................................................................................................................................. 26
8.1 Switching off the pump and temporary shutdown.................................................................................................................................... 27
8.2 Shutdown and storage ................................................................................................................................................................................... 27
9 Maintenance/repair ................................................................................................................................................................ 27
9.1 Personnel qualifications................................................................................................................................................................................. 28
9.2 Operation monitoring..................................................................................................................................................................................... 28
9.3 Maintenance tasks.......................................................................................................................................................................................... 28

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4 WILO SE 2022-02
9.4 Draining and cleaning..................................................................................................................................................................................... 29
9.5 Dismantling...................................................................................................................................................................................................... 29
9.6 Installation ....................................................................................................................................................................................................... 31
10 Faults, causes and remedies .................................................................................................................................................. 34
10.1 Faults ................................................................................................................................................................................................................ 34
10.2 Causes and remedies......................................................................................................................................................................................35
11 Spare parts............................................................................................................................................................................... 36
11.1 Spare parts list.................................................................................................................................................................................................37
12 Disposal.................................................................................................................................................................................... 38
12.1 Oils and lubricants........................................................................................................................................................................................... 38
12.2 Water-glycol mixture..................................................................................................................................................................................... 38
12.3 Protective clothing .........................................................................................................................................................................................38
12.4 Information on the collection of used electrical and electronic products.............................................................................................. 38

General information en
Installation and operating instructions Wilo-Atmos GIGA-NF 5
1 General information
1.1 About these instructions These installation and operating instructions are an integral part of the device. Read
these instructions before commencing work and keep them in an accessible place at all
times. Strict adherence to these instructions is a requirement for the intended use and
correct operation of the device. All specifications and markings on the device must be
observed. These installation and operating instructions correspond to the relevant ver-
sion of the device and the underlying safety standards applying at the time of going to
print.
If the fire-extinguishing system falls within the scope of a specific fire protection
standard/directive, the instructions for installation, operation and maintenance of this
standard/directive must be followed.
The language of the original operating instructions is German. All other languages for
these instructions are translations of the original operating instructions.
1.2 Copyright These installation and operating instructions have been copyrighted by the manufac-
turer. The contents, of whatever type, may not be reproduced or distributed, or used for
purposes of competition and shared with others.
1.3 Subject to change The manufacturer reserves the right to make technical modifications to the device or
individual components. The illustrations used may differ from the original and are in-
tended as an example representation of the device.
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 Identification of safety instruc-
tions 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 danger and instructions for avoidance.
ƒSafety instructions relating to property damage start with a signal word and are
displayed without a symbol.
CAUTION
Type and source of the danger!
Consequences or information.

en Safety
6 WILO SE 2022-02
Signal words
ƒDANGER!
Failure to follow the instructions will result in serious injuries or death!
ƒWARNING!
Failure to follow the instructions can lead to (serious) injury!
ƒCAUTION!
Failure to follow the instructions can lead to potentially irreparable property dam-
age.
ƒNOTICE!
Useful information on handling the product
Symbols
These instructions use the following symbols:
Warning – electrical voltage
General warning symbol
Warning – suspended loads
Warning – risk of chemical burns
Warning – risk of environmental damage
Warning – hot surfaces
Warning – high pressure
Warning – risk of cutting injuries
Personal protective equipment: wear a safety helmet
Personal protective equipment: wear safety footwear
Personal protective equipment: wear protective gloves
Personal protective equipment: wear face mask
Personal protective equipment: wear safety goggles
Useful information
2.2 Personnel qualifications Personnel must:
ƒBe instructed about locally applicable regulations governing accident prevention.
ƒHave read and understood the installation and operating instructions.

Safety en
Installation and operating instructions Wilo-Atmos GIGA-NF 7
Personnel must have the following qualifications:
ƒElectrical work: A qualified electrician must carry out the electrical work.
ƒInstallation/dismantling must be carried out by a qualified technician who is trained
in the use of the necessary tools and fixation materials.
Definition of “qualified electrician”
A qualified electrician is a person with appropriate technical education, knowledge and
experience who can identify and prevent electrical hazards.
2.3 Electrical work ƒElectrical work must be carried out by a qualified electrician.
ƒWhen connecting to the mains, comply with the locally applicable laws and regula-
tions of the local energy supply company.
ƒBefore commencing work, disconnect the device from the mains and secure it
against being switched on again without authorisation.
ƒTrain personnel on how to make the electrical connection as well as on the meth-
ods for switching off the device.
ƒObserve the technical information in these installation and operating instructions
as well as on the rating plate.
ƒEarth the device.
ƒObserve the manufacturer’s specifications when connecting to electrical switching
systems.
ƒComply with the specifications on electro-magnetic compatibility when using
electronic start-up controllers (e.g. soft starter or frequency converter). If required,
take into account special measures (shielded cables, filters, etc.).
ƒReplace defective connection cables. Contact customer service.
2.4 Transport ƒWear protective equipment:
–Safety gloves for protection against cuts
–Safety shoes
–Sealed safety goggles
–Safety helmet (when using lifting equipment)
ƒOnly use legally specified and approved lifting gear.
ƒSelect lifting gear based on the available conditions (weather, attachment point,
load, etc.).
ƒAlways attach the lifting gear to the designated attachment points (lifting eyes).
ƒPosition the lifting equipment in a way that ensures stability during use.
ƒWhen using lifting equipment, a second person must be present to coordinate the
procedure if required (e.g. if the operator’s field of vision is blocked).
ƒPersons must not stand underneath suspended loads. Do not move suspended
loads over workplaces where people are present.
Please note the following information during transport and prior to installation:
ƒDo not reach into suction ports, discharge ports or other openings.
ƒAvoid the penetration of foreign objects. To this end, leave the protective covers or
packaging on until they have to be removed for installation.
ƒPackaging and covers may be removed from suction or outlet openings for inspec-
tion purposes. They must be put back on afterwards to protect the pump and en-
sure safety.
2.5 Installing/dismantling ƒWear the following protective equipment:
–Safety shoes
–Safety gloves for protection against cuts
–Safety helmet (when using lifting equipment)
ƒComply with laws and regulations on work safety and accident prevention in force
at the site of installation.
ƒThe procedure described in the installation and operating instructions for shutting
down the product/unit must be strictly observed.
ƒDisconnect the device from the mains and secure it against being switched on
again without authorisation.
ƒAll rotating parts must be at a standstill.
ƒClose the gate valve in the inlet and in the pressure pipe.
ƒProvide adequate aeration in enclosed spaces.
ƒClean the device thoroughly. Disinfect devices that use fluids hazardous to health!
ƒMake sure that there is no risk of explosion when carrying out any type of welding
work or work with electrical devices.

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8 WILO SE 2022-02
2.6 During operation ƒWear protective equipment:
–Safety shoes
–Safety helmet (when using lifting equipment)
ƒThe work area in which the device is used is not a recreational area. No persons are
allowed in the work area during operation.
ƒThe operator must report any faults or irregularities to a line manager immediately.
ƒIf hazardous defects occur, the operator must immediately deactivate the device.
Hazardous defects include:
–Malfunction of safety and monitoring devices
–Damage to housing parts
–Damage to electrical equipment
ƒOpen all gate valves in the piping on both the suction and pressure sides.
ƒCollect any leakage of fluids and operating fluids immediately and dispose of it ac-
cording to the locally applicable guidelines.
ƒTools and other objects should only be kept in their designated places.
Thermal hazards
Most of the pump and drive surfaces can become hot during operation.
The surfaces in question also remain hot after switching off the unit. These surfaces
may only be touched with extreme caution. Wear protective gloves if it is essential to
touch hot surfaces.
Make sure that the drained water is not too hot for more intensive contact with skin.
Install appropriate equipment to safeguard against contact with components that may
become hot.
Hazard due to articles of clothing or other objects being caught
To avoid the dangers presented by the rotating parts of the device:
ƒDo not wear loose or frayed clothing or jewellery.
ƒDo not dismantle devices for protecting against accidental contact with moving
parts (e.g. coupling guard).
ƒOnly put the device into operation once this protection is in place.
ƒThe devices for protecting against accidental contact with moving parts may only
be removed when the system is at a standstill.
Hazards due to noise
Observe the sound pressure specifications on the motor rating plate. The sound pres-
sure value of the pump is generally about the same value as that of the motor +2dB(A).
Observe the applicable health and safety regulations. If the device is operated under
normal operating conditions, the operator must measure the sound pressure.
Sound pressure levels of 80dB(A) and above must be noted in the work regulations!
The operator must also introduce the following preventative measures:
ƒInform the operating personnel
ƒProvide hearing protection
For a sound pressure level of 85dB(A) and above, the operator must:
ƒMake it a mandatory requirement to wear hearing protection
ƒDemarcate the noisy areas.
ƒTake measures to reduce noise (e.g. insulation, noise barriers)
Leakages
Observe local standards and regulations. Avoid pump leakages to protect persons and
the environment against hazardous (explosive, toxic or hot) substances.
Ensure that a dry run of the pump is not possible. A dry run can damage the shaft seal
and thereby cause leakages.

Application/use en
Installation and operating instructions Wilo-Atmos GIGA-NF 9
2.7 Maintenance tasks ƒWear the following protective equipment:
–Sealed safety goggles
–Safety shoes
–Safety gloves for protection against cuts
ƒOnly carry out the maintenance tasks described in these installation and operating
instructions.
ƒOnly original parts from the manufacturer may be used for maintenance and re-
pairs. Use of parts other than original parts releases the manufacturer from any li-
ability.
ƒCollect any leakage of fluid and operating fluid immediately and dispose of it ac-
cording to the locally applicable guidelines.
ƒStore tools at the designated locations.
ƒAfter completing work, reattach all safety and monitoring devices and check that
they function properly.
2.8 Drive The hydraulics have a standardised connection flange for installing an IEC standard mo-
tor or a diesel motor. See the technical data for the performance data (e.g. size, con-
struction, hydraulic rated power, speed) needed to select a drive.
2.9 Operator responsibilities The operator must:
ƒProvide the installation and operating instructions in a language which the person-
nel can understand.
ƒMake sure that personnel are suitably trained for the specified work.
ƒEnsure that safety and information signs mounted on the device are always legible.
ƒTrain personnel with regard to the operating principles of the system.
ƒEliminate any risk from electrical current.
ƒEquip hazardous components (extremely cold, extremely hot, rotating, etc.) with
an on-site guard.
ƒDemarcate and cordon off the hazardous area.
ƒDefine personnel responsibilities to ensure safe working practice.
Children and persons younger than 16years or with reduced physical, sensory or mental
capacities or limited experience are prohibited from handling the device! Persons under
the age of 18 must be supervised by a technician.
3 Application/use
3.1 Intended use The glanded pumps in the Wilo-Atmos GIGA-NF series are intended for use as fire
pumps in sprinkler systems.
The pumps are only approved for the fluids specified in the “Technical data” section.
3.2 Improper use WARNING!Misuse of the pump can lead to dangerous situations and damage.
ƒNever use with fluids that have not been approved by the manufacturer.
ƒNon-permitted substances in the fluid can destroy the pump. Abrasive solids (e.g.
sand) increase pump wear.
ƒHighly flammable materials/fluids should always be kept at a safe distance from
the device.
ƒNever allow unauthorised persons to carry out work.
ƒNever operate the pump beyond the specified limits of use.
ƒNever carry out unauthorised conversions.
ƒUse authorised accessories and genuine spare parts only.
Typical installation locations are fire protection rooms within the building or in a special
building or container near the main building. No provision has been made for installa-
tion of the pump in rooms other than those used for fire protection.
Outdoor installation is not permitted.
Intended use also includes compliance with this manual. Any other use is regarded as
non-compliant with intended use.
4 Product description
4.1 Design The Wilo-Atmos GIGA-NF pump is a single-stage back pull-out-centrifugal pump with
spiral housing for horizontal installation. Power and dimensions in accordance with
EN733.

en Product description
10 WILO SE 2022-02
Suitable Wilo control devices (e.g. Smart Control SC Fire) can control the power of the
pumps continuously. This allows optimisation of the pump output for the demands of
the installation and particularly economically reliable pump operation.
4.1.1 Hydraulics The pump consists of a radially divided spiral housing with exchangeable neck rings and
cast-on pump support feet. The impeller is a closed radial impeller. The pump shaft is
supported by grease-lubricated radial ball bearings.
4.1.2 Drive One of the following is used as the drive:
ƒIEC standard motors in the three-phase current version
ƒDiesel motors with direct injection or motor charging; air or water cooled
4.1.3 Cardan shaft (pumps with diesel
motor) Pumps with diesel motors have a cardan shaft with double joint for power transmission
from the motor to hydraulics. The cardan shaft is fitted so that the centre lines of the
drive and output shafts are parallel with a slight offset.

Fig.1: Cardan shaft; parallel offset centre lines
The common operating angle β°1 and β°2 is slightly larger than 2° due to the design.
This angle guarantees trouble-free, low-vibration operation of the cardan connection
and may not be undercut.
As standard, the cardan shaft is protected from contact by a protective box because the
rotating parts pose considerable hazards. WARNING!Only operate the pump with cor-
rectly fitted protective equipment!
4.1.4 Seal The fluid pump is sealed via a mechanical seal in accordance with EN12756.
4.2 Operation with frequency con-
verter Refer to the documentation from the motor manufacturer for the relevant require-
ments and observe its contents.
4.3 Technical data General
Date of manufacture [MFY] See rating plate
Mains connection [U/f] See motor rating plate
Power consumption [P1] See motor rating plate
Rated power [P2] See motor rating plate
Rated speed [n] See rating plate
Max. delivery head [H] See rating plate
Max. volume flow [Q] See rating plate
Maximum permissible fluid temper-
ature [t]
+25°C
Permissible ambient temperature [t]
With electric motor:
With diesel motor:
+4 ... +40°C
+10 ... +40°C
Permissible operating pressure [Pmax] 16bar
Flanges PN16 in accordance withEN1092-2
Permissible fluids – Firefighting water
– Non-aggressive, clean water without solid,
abrasive or long-fibre components*
Protection class IP55
Insulation class [Cl.] F
Motor protection – (not permitted for fire pump)
*Observe the safety data sheet of the pumped fluid!
Statement of date of manufacture
The date of manufacture is stated in accordance with ISO8601: JJJJWww
ƒJJJJ = year
ƒW = abbreviation for week
ƒww = calendar week

Product description en
Installation and operating instructions Wilo-Atmos GIGA-NF 11
4.4 Type key Example: Wilo-GIGA-NF 80/200-224-45/2-L1-N37
Atmos Product family
GIGA Series
N Construction
F Fire pump
80/200 Nominal size of the pump in accordance with EN733
224 Nominal diameter of the impeller in mm
45 Rated power P2 in kW
2 Number of poles
L1 Optional: Bronze impeller
N37 Optional: VdS pump approval
4.5 Scope of delivery The pump can be delivered:
ƒAs an integrated part of a fire extinguishing system in installed condition
ƒAs a complete unit, consisting of:
–Atmos GIGA-NF pump
–Baseplate
–Coupling and coupling guard
–With or without electric motor or diesel motor
–Installation and operating instructions
ƒAs a bare shaft pump, consisting of:
–Atmos GIGA-NF pump
–Bearing bracket without baseplate
–Installation and operating instructions
4.6 Accessories Accessories have to be ordered separately. For a detailed list, consult the catalogue and
spare parts documentation.
4.7 Anticipated noise levels
4.7.1 Pump with three-phase motor,
50Hz without speed control Motor power PN [kW] Measuring surface sound-pressure level
Lp, A [dB(A)] 1)
2-pole (2900rpm)
4 66
5.5 64
7.5 72
9 72
11 72
15 72
18.5 72
22 77
30 80
37 80
45 77
55 76
75 79
90 79
110 79
132 79
160 81
200 81
250 86

en Product description
12 WILO SE 2022-02
Motor power PN [kW] Measuring surface sound-pressure level
Lp, A [dB(A)] 1)
2-pole (2900rpm)
1) Spatial mean value of sound-pressure levels within a cube-shaped measuring area at
a distance of 1m from the surface of the motor
Table1: Anticipated noise levels for norm pump (50Hz)
4.7.2 Pump with diesel motor Motor Motor power PN [kW] Measuring surface sound-
pressure level Lp, A
[dB(A)] 1) (at 2900rpm)
15LD350 4.2 90
15LD500 6.8 92
25LD425/2 10.5 92
12LD477/2 12.9 93
9LD625/2 17.7 97
1) Spatial mean value of sound-pressure levels within a cube-shaped measuring area at
a distance of 1m from the surface of the motor, at 2900
Table2: Anticipated noise levels for norm pumps with diesel motor (air-cooled)
Motor Motor power PN [kW] Measuring surface sound-
pressure level Lp, A
[dB(A)] 1) (at 2900rpm)
KDI 1903M 26.5 105
VM D703S 31.5 108
KDI 2504 M 37 107
VM D703TE0 47.7 107
VM D754TPE2 66 111
VM D756TPE2 100 112
N45MNTF40 109 115
N45MNTF41 145 122
N67MNTF42 197 124
1) Spatial mean value of sound-pressure levels within a cube-shaped measuring area at
a distance of 1m from the surface of the motor
Table3: Anticipated noise levels for norm pumps with diesel motor (water-cooled)
4.8 Permissible forces and torques on
the pump flanges
Z
Y
X
Y
X
Z
Fig.2: Permissible forces and torques on the
pump flanges–pump made of grey cast iron
DN Forces F [N] Torques M [Nm]
FXFYFZΣ Forces F MXMYMZΣ Torques M
Pressure port
32 315 298 368 578 385 263 298 560
40 385 350 438 683 455 315 368 665
50 525 473 578 910 490 350 403 718
65 648 595 735 1155 525 385 420 770
80 788 718 875 1383 560 403 455 823
100 1050 945 1173 1838 613 438 508 910
125 1243 1120 1383 2170 735 525 665 1068
150 1575 1418 1750 2748 875 613 718 1278
Suction port
50 578 525 473 910 490 350 403 718
65 735 648 595 1155 525 385 420 770

Transportation and storage en
Installation and operating instructions Wilo-Atmos GIGA-NF 13
DN Forces F [N] Torques M [Nm]
FXFYFZΣ Forces F MXMYMZΣ Torques M
80 875 788 718 1383 560 403 455 823
100 1173 1050 945 1838 613 738 508 910
125 1383 1243 1120 2170 735 525 665 1068
150 1750 1575 1418 2748 875 613 718 1278
200 2345 2100 1890 3658 1138 805 928 1680
Values in acc. with ISO/DIN5199–class II (2002)–AppendixB, Family no. 1A.
Table4: Permissible forces and torques on the pump flanges
If not all working loads reach the maximum permitted values, one of these loads may
exceed the normal limit value. This is under the condition that the following additional
conditions are fulfilled:
ƒAll force and torque components are limited to 1.4times the maximum permitted
value.
ƒThe forces and torques acting on each flange meet the requirements of the com-
pensation equation.
Fig.3: Compensation equation
Σ Feffective and Σ Meffective are the arithmetic sums of the effective values of both pump
flanges (inlet and outlet). Σ Fmax. permitted and Σ Mmax. permitted are the arithmetic sums of the
maximum permitted values of both pump flanges (inlet and outlet). The algebraic signs
of Σ F and Σ M are not considered in the compensation equation.
5 Transportation and storage
5.1 Delivery The pump can be delivered as part of the fire extinguishing system in an installed state
or as an individual unit. If the pump is part of a fire extinguishing system, follow the
transport and temporary storage instructions for the fire extinguishing system.
When delivered as a single unit, the pump is secured to a pallet ex works and protected
against dirt and moisture.
The following applies in both cases:
Check the shipment immediately on receipt for defects (damage, completeness). De-
fects must be noted on the freight documentation. Any defects 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 asserted.
5.2 Transport
DANGER
Risk of fatal injury due to suspended loads!
Never allow anyone to stand under suspended loads! Danger of (serious) injuries
caused by falling parts. Loads may not be carried over workplaces where people are
present!
The safety zone must be marked so that there is no danger when the load (or part of
it) slips away or if the lifting device snaps or is ripped off.
Loads must never be suspended for longer than necessary.
Accelerations and braking during the lifting operation must be performed in a way
that rules out any danger to people.

en Transportation and storage
14 WILO SE 2022-02
WARNING
Hand and foot injuries due to lack of protective equipment!
Danger of (serious) injuries during work. Wear the following protective equipment:
• Safety shoes
• Safety gloves for protection against cuts
• Sealed safety goggles
• Safety helmet must be worn if lifting equipment is used!
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
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!
CAUTION
Property damage due to incorrect transport
To ensure proper alignment, all equipment is pre-assembled. If dropped or if im-
properly handled, there is a risk of misalignment or deficient performance due to de-
formations. The pipes and valves will not withstand loads and should not be used to
secure loads in transit.
• Only use permitted lifting gear for transport. Ensure the stability of the load since,
with this particular pump design, the centre of gravity is shifted to the top (top-
heavy).
•Never attach lifting gear to shafts in order to lift the unit.
• Do not use the transport lugs on the pump or motor to lift the entire unit. They
are only meant for transporting the individual components during installation or
dismantling.
Only remove the outer packaging at the place of utilisation to ensure that the pump is
not damaged during transport.

Transportation and storage en
Installation and operating instructions Wilo-Atmos GIGA-NF 15
CAUTION
Risk of damage due to incorrect packaging.
If the pump is transported again at a later date, it must be packaged so that it cannot
be damaged during transport. Use the original packaging for this, or choose equival-
ent packaging.
5.2.1 Attaching the pump
Fig.4: Attaching the pump
ƒComply with applicable national safety regulations.
ƒUse legally specified and approved lifting gear.
ƒSelect the lifting gear based on the prevailing conditions (weather, attachment
point, load, etc.).
ƒOnly attach the lifting gear to the attachment point. Fix in place with a shackle.
ƒNever feed the lifting gear over or through transport lugs without protection.
ƒNever feed the lifting gear over sharp edges without protection.
ƒUse lifting equipment with sufficient bearing capacity.
ƒThe stability of the lifting equipment must be ensured during operation.
ƒWhen using lifting equipment, ensure a second person is present to coordinate the
procedure if required (e.g. if the operator’s field of vision is blocked).
ƒWhen lifting, make sure that the load limit of the lifting gear is reduced when
pulling at an angle. The safety and efficiency of the lifting gear is best guaranteed
when all load-bearing elements are loaded vertically. If necessary, use a lifting arm,
to which the lifting gear can be vertically attached.
ƒEnsure the load is lifted vertically!
ƒPrevent the suspended load from swinging!
5.2.2 Attaching the unit
Fig.5: Attaching the unit
ƒComply with applicable national safety regulations.
ƒUse legally specified and approved lifting gear.
ƒSelect the lifting gear based on the prevailing conditions (weather, attachment
point, load, etc.).
ƒOnly attach the lifting gear to the attachment point. Fix in place with a shackle.
ƒNever feed the lifting gear over or through transport lugs without protection.
ƒNever feed the lifting gear over sharp edges without protection.
ƒUse lifting equipment with sufficient bearing capacity.
ƒThe stability of the lifting equipment must be ensured during operation.
ƒWhen using lifting equipment, ensure a second person is present to coordinate the
procedure if required (e.g. if the operator’s field of vision is blocked).
ƒWhen lifting, make sure that the load limit of the lifting gear is reduced when
pulling at an angle. The safety and efficiency of the lifting gear is best guaranteed
when all load-bearing elements are loaded vertically. If necessary, use a lifting arm,
to which the lifting gear can be vertically attached.
ƒEnsure the load is lifted vertically!
ƒPrevent the suspended load from swinging!
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

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16 WILO SE 2022-02
NOTICE
Improper storage can lead to damage to the equipment.
Damage caused by improper storage is not covered by the guarantee or warranty.
ƒRequirements at the storage location:
–dry
–clean
–well-ventilated
–free from vibrations
–free from humidity
–free from rapid or extreme changes in temperature
ƒStore the product somewhere safe against mechanical damage.
ƒProtect the bearings and couplings from sand, gravel and other foreign objects.
ƒLubricate the unit to prevent rust and bearing seizing.
ƒManually rotate the drive shaft several times once a week.
Storage for more than three months
Additional precautionary measures:
ƒAll rotating parts must be coated with a suitable protective medium to protect
them from rust.
ƒIf the pump is to be stored for more than a year, consult the manufacturer.
6 Installation and electrical con-
nection
This section applies to fire pumps as a single unit or as a bare shaft pump.
6.1 Personnel qualifications ƒElectrical work: A qualified electrician must carry out the electrical work.
6.2 Operator responsibilities ƒObserve locally applicable accident prevention and safety regulations of profes-
sional and trade associations.
ƒObserve all regulations for working with heavy loads and under suspended loads.
ƒProvide protective equipment and ensure that the protective equipment is worn by
personnel.
ƒAvoid pressure surges!
Pressure surges can occur in long pressure pipes. These pressure surges can lead to
the destruction of the pump!
ƒStructural components and foundations must be of sufficient stability in order to
allow the device to be fixed in a secure and functional manner. The operator is re-
sponsible for the provision and suitability of the building/foundation!
ƒCheck that the available consulting documents (installation plans, design of the
operating space, inflow conditions) are complete and correct.
6.3 Preparing the installation
WARNING
Danger of personal injury and damage to property due to improper in-
stallation!
Observe the following fire protection standards/directives for the arrangement, in-
stallation and operation of sprinkler pumps in fire-extinguishing systems:
• VdSCEA4001
• CEA4001
• EN12845

Installation and electrical connection en
Installation and operating instructions Wilo-Atmos GIGA-NF 17
WARNING
Risk of personal injury and property damage due to improper handling!
• Never set up the pump unit on unfortified surfaces or surfaces that cannot bear
loads.
• Flush the pipeline system if required. Dirt can cause the pump to fail.
• Install only after completion of all welding and soldering work and after the
pipeline system has been flushed, if required.
• For pumps with an electric motor as drive, observe the axial minimum spacing
between the wall and the motor fan cover:
200mm + diameter of the fan cover
ƒInstall the pump (standard version) protected from the weather in a frost/dust-
free, well-ventilated and non-explosive environment.
ƒMount the pump in a readily accessible place. This makes it easier to complete in-
spections, maintenance (e.g. mechanical seal change) or replacement in the future.
ƒA travelling crane or a device for attaching hoisting gear should be installed above
the set-up site of large pumps.
6.4 Setting up the pump by itself
(variantB, Wilo variant key) When installing a pump by itself, the required coupling guard and baseplate of the
pump manufacturer should be used. In any case, all components must meet the CEreg-
ulations. The coupling guard must be compatible with EN953.
6.4.1 Selecting the motor Motor and coupling must be CE compliant.
The motor must comply with the applicable fire protection standards and regulations.
6.4.2 Selecting the coupling ƒTo establish the connection between the pump with bearing bracket and motor,
use a flexible coupling.
ƒSelect the coupling size according to the recommendations of the coupling manu-
facturer.
ƒFollow the instructions of the coupling manufacturer.
ƒAfter installation on the base and connecting the pipes, check the coupling align-
ment and correct it if necessary. The procedure is described in the chapter “Coup-
ling alignment”.
ƒAfter reaching the operating temperature, the coupling alignment must be
checked again.
ƒAvoid accidental contact during operation. The coupling must be protected in ac-
cordance with EN953.
6.5 Installing the pump unit on a base
CAUTION
Danger of property and material damage!
A missing foundation or incorrect installation of the unit on the base can lead to a
malfunction of the pump. Incorrect installation is not covered by the warranty.
• Only have the pump unit installed by qualified personnel.
• A professional from the concrete sector must be hired for all base work.
6.5.1 Base
Fig.6: Installing the unit on a base
The base must be able to support the unit installed on the baseplate indefinitely. The
base must be level to ensure there is no tension on the baseplate or unit. Wilo recom-
mends using premium, non-shrink concrete of an adequate thickness for manufactur-
ing. This would prevent vibrations from being transmitted.
The base must be able to accommodate the forces, vibrations and impact that occur.
Guidance values for dimensioning the base:
ƒApprox. 1.5to 2x heavier than the unit.
ƒThe width and length should each be about 200mm greater than the baseplate.
The baseplate must not be strained or pulled down on the surface of the base. It must
be supported so that the original alignment is not changed.

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18 WILO SE 2022-02
Prepare drilled holes for the anchor bolts. Position pipe sleeves vertically in the base at
the corresponding points. Diameter of the pipe sleeves: Around 2½x the diameter of
the screws. This allows the screws to be moved in order to achieve their final positions.
Wilo recommends initially pouring the base up to about 25mm below the planned
height. The surface of the concrete base must be well contoured before curing. Remove
the pipe sleeves after the concrete cures.
When the baseplate is poured out, insert steel rods vertically into the base at regular in-
tervals. The required number of steel rods is dependent on the size of the baseplate.
The rods must project into the baseplate by up to 2/3.
6.5.2 Preparing the baseplate for an-
choring
Fig.7: Shims on the base surface
Fig.8: Levelling screws on the base surface
ƒThoroughly clean the base surface.
ƒPlace shims (approx. 20–25mm thick) on every screw hole on the base surface.
Alternatively, levelling screws can also be used.
ƒFor a length spacing of the fixation bores ≥800mm, shims should be additionally
placed in the middle of the baseplate.
ƒApply the baseplate and level in both directions with additional shims.
ƒAlign the unit when installing on the base using a spirit level (at the shaft/pressure
port).
The baseplate must be horizontal; tolerance: 0.5mm per metre.
ƒFit anchor bolts in the provided drilled holes.
NOTICE
The anchor bolts must fit in the fastening bores of the baseplate.
They must meet the relevant standards and be sufficiently long, so that a firm fit in
the base is guaranteed.
Fig.9: Levelling and aligning the baseplate
Fig.10: Anchor bolt
ƒPour in anchor bolts with concrete. After the concrete has set, tighten the anchor
bolts evenly and firmly.
ƒAlign the unit so that the pipes can be connected to the pump stress-free.
6.5.3 Pouring out the baseplate The baseplate can be poured out after fixing. The process of pouring out reduces vibra-
tions to a minimum.
ƒWet the base surface before pouring out the concrete.
ƒUse a suitable, non-shrink mortar for pouring out.
ƒPour the mortar through the openings in the baseplate. Be sure to avoid hollow
spaces.
ƒPlank the base and baseplate.
ƒAfter curing, check the anchor bolts for a tight fit.
ƒCoat the unprotected surfaces of the base to protect from moisture.

Installation and electrical connection en
Installation and operating instructions Wilo-Atmos GIGA-NF 19
6.6 Pipework The pipe connections of the pump are fitted with dust caps so that no foreign objects
can penetrate during transport and installation.
ƒThese caps must be removed before connecting pipes.
r
5 x DN
d s
r ≈ 2,5 · (d - 2s)
Fig.11: Connecting the pump without tension,
settling section upstream and downstream of
the pump
CAUTION
Improper pipework/installation can lead to property damage! Welding
beads, cinder and other contaminants can damage the pump!
• The pipes must be sufficiently dimensioned, taking the pump inlet pressure into
account.
• Connect the pump and pipes using suitable gaskets. Take the pressure, temper-
ature and fluid into account. Check the gaskets for proper fitting.
• The pipes must not transfer any forces to the pump. Brace the pipes directly be-
fore the pump and connect them without tension.
• Observe the permissible forces and torques on the pump connecting pieces!
• The expansion of the pipes in the event of a temperature rise is to be com-
pensated by suitable means.
• Avoid air pockets in piping by means of appropriate installations.
NOTICE
Simplify subsequent work on the unit!
• To ensure the entire unit does not have to be emptied, install a non-return valve
and shut-off devices before and after the pump.
NOTICE
Avoid flow cavitation!
• A settling section must be provided upstream and downstream of the pump in
the form of a straight pipe. The length of the settling section must be at least
5times the nominal diameter of the pump flange.
ƒThe pipes and pump must be free of mechanical stress when installed.
ƒThe pipes must be fixed in such a way that the pump does not have to support the
weight of the pipes.
ƒClean, flush and purge the unit before connecting the pipes.
ƒRemove the covers from the suction and discharge ports.
ƒIf required, install a dirt filter upstream of the pump in the pipe on the suction side.
ƒThen connect the pipes to the pump connecting pieces.

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20 WILO SE 2022-02
6.7 Aligning the unit
CAUTION
Incorrect alignment can result in property damage!
The transport and installation of the pump can affect the alignment. The motor must
be aligned to the pump (not vice versa).
• Check the alignment before the first start.
CAUTION
Changes to the alignment during operation can result in property dam-
age.
The pump and motor are usually aligned at ambient temperature. Thermal expansion
at operating temperature can change the alignment, particularly in the case of very
hot fluids.
Adjustment may be required if the pump is required to pump very hot fluids:
• Allow the pump to run at the actual operating temperature.
• Switch off the pump then immediately check the alignment.
Precondition for reliable, smooth and efficient operation of a pump unit is proper align-
ment of the pump and the drive shaft.
Misalignments can be the cause of:
ƒexcessive noise development during pump operation
ƒvibrations
ƒpremature wear
ƒexcessive coupling wear
6.7.1 Coupling alignment
Checking the radial alignment
Fig.12: Checking the radial alignment with a
comparator
Fig.13: Checking the radial alignment with a
ruler
ƒFirmly clamp a dial gauge to one of the couplings or to the shaft. The piston of the
dial gauge must lie against the crown of the other half-coupling.
ƒSet the dial gauge to zero.
ƒTurn the coupling and write down the measuring result after every quarter turn.
ƒAlternatively, the radial coupling alignment can also be checked with a ruler.
NOTICE
The radial deviation of the two coupling halves must not exceed the maximum val-
ues found in table “Permissible tolerances of couplings for pumps with electric mo-
tor or diesel motor”. This requirement applies to every operating status – including
operating temperature and inlet pressure.