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Summary of Contents for Wilo Atmos GIGA-NX
- Page 1 Pioneering for You Wilo-Atmos GIGA-NX Installation and operating instructions · 6097590 • Ed.01/2025-04...
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Page 3: Table Of Contents
6 Installation and electrical connection ........ 15 Personnel qualifications............. 15 Operator responsibilities ........... 15 Preparing the installation .......... 15 Setting up the pump by itself (variant B, Wilo variant key) .................... 15 Installing the pump unit on a base ........ 16 Pipework ................ 17 Peripheral piping .............. 18 Aligning the unit .............. 19... -
Page 4: General Information
Failure to follow the instructions can lead to potentially irreparable property damage. • NOTICE! Useful information on handling the product Symbols These instructions use the following symbols: Danger – high voltage General warning symbol Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 5: Personnel Qualifications
Comply with the specifications on electro-magnetic compatibility when using electronic start-up controllers (e.g. soft starter or frequency converter). If required, take into ac- count special measures (shielded cables, filters, etc.). • Replace defective connection cables. Contact customer service. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 6: Transport
Do not wear loose or frayed clothing or jewellery. • Do not dismantle devices for protecting against accidental contact with moving parts (e.g. coupling guard). • Only put the device into operation once this protection is in place. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 7: Maintenance Tasks
Persons under the age of 18 must be supervised by a technician. Application/use The glanded pumps in the Wilo-Atmos GIGA-NX series are intended for use as circulators in Intended use building services. -
Page 8: Improper Use
Product description Design The Wilo-Atmos GIGA-NX pump is a single-stage back pull-out-centrifugal pump with spiral housing for horizontal installation. Power and dimensions in accordance with ISO 2858. Suitable Wilo control devices (e.g. Comfort control system, CC-HVAC) can control the power of the pumps continuously. -
Page 9: Technical Data
Sea water, brackish water, slightly corrosive liquid • Diesel oil, kerosene, lubricating oil IP rating IP55 Insulation class [Cl.] Motor protection See manufacturer’s documentation Special version or with auxiliary equipment (at additional charge) Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 10: Type Key
Anticipated noise levels 4.7.1 Pump with three-phase motor, Motor power P [kW] Measuring surface sound-pressure level Lp, A [dB(A)] 50 Hz without speed control 2-pin (2900 rpm) 4-pin (1450 rpm) 0.37 – 0.55 0.75 Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... - Page 11 Table 1: Anticipated noise levels for standard pump (50 Hz) 4.7.2 Pump with three-phase motor, Motor power P [kW] Measuring surface sound-pressure level Lp, A [dB(A)] 60 Hz without speed control 2-pin (2900 rpm) 4-pin (1450 rpm) 0.37 – 0.55 0.75 18.5 Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04...
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Page 12: Permissible Forces And Torques On The Pump Flanges
(inlet and outlet). The algebraic signs of Σ F and Σ M are not considered in the compensation equation. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 13: Transportation And Storage
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. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 14: Storage
Protect the bearings and couplings from sand, gravel and other foreign objects. • Lubricate the unit to prevent rust and bearing seizing. • Manually rotate the drive shaft several times once a week. Storage for more than three months Additional precautionary measures: Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 15: Installation And Electrical Connection
Plank the base and baseplate. The required limit value for this duty point lies at 12.5 kW x 1.15 = 14.3 kW. A motor with a power of 15 kW would be the correct choice. Wilo recommends using a B3 motor (IM1001) with base installation, which is compatible with IEC34-1. •... -
Page 16: Installing The Pump 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 recommends using premium, non-shrink concrete of an adequate thickness for manufacturing. This would pre- vent vibrations from being transmitted. -
Page 17: Pipework
• 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. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 18: Peripheral Piping
The cooling positions are determined by a specific process. The exact flow rate of the cool- ing water is outlined in the contract. The detailed flush schedule must be arranged with Wilo. The interface description of the cooling water piping is part of the manufacturer’s documentation. -
Page 19: Aligning The Unit
Misalignments can be the cause of: • excessive noise development during pump operation • vibrations • premature wear • excessive coupling wear 6.8.1 Coupling alignment max. max. ∆Ka min. min. Fig. 11: Coupling alignment without spacer Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... - Page 20 0.30 0.25 0.20 0.20 0.30 0.30 0.20 0.20 Permissible shaft displacement ΔS and ΔKr in mm (during operation, rounded) perm. perm. Table 6: Maximum permissible shaft displacement ΔS and ΔKr perm. perm. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04...
- Page 21 A [Nm] justing screw B [Nm] 80, 88, 95, 103 110, 118 125, 135 17.5 140, 152 160, 172 Fig. 17: Adjusting screw A for axial safeguard 180, 194 200, 218 67.5 Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04...
- Page 22 Risk of damage due to vibrations! Incorrect alignment can lead to vibrations. Vibrations can damage or destroy individual components. • Carefully align the pump unit until all measurement results are within the permissible range. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04...
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Page 23: Electrical Connection
6.9.1 Fuse on mains side Circuit breaker • Design the power and switching characteristics of the circuit breakers according to the rated current of the connected product. • Observe local regulations. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 24: Commissioning
• Open the condensate drainage holes in the motor housing at regular intervals and drain the condensate. • Then reseal the condensate drainage holes with plastic plugs. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 25: Personnel Qualifications
Danger of damage to the pump parts that rely on the fluid supply for lub- rication. • Before checking the direction of rotation and commissioning, the pump must be filled with fluid and vented. • Do not operate the pump with the shut-off devices closed. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 26: Switching On The Pump
• Do not connect pressure gauges to a pressurised pump. • Install pressure gauges on the suction and discharge side. NOTICE It is recommended to attach a flow meter to determine the exact pump delivery rate. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 27: Switching Frequency
Then leave the cooling and flushing system in operation even though the pump remains in standby mode after you switch it off. • Switch off the motor. • If there is no danger of frost, make sure the fluid level is sufficient. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 28: Shutdown And Storage
Maintenance/repair It is recommended to have the pump serviced and checked by the Wilo customer service. Maintenance and repair work require the pump to be partially or completely dismantled. The pump housing can be installed in the piping. -
Page 29: Operation Monitoring
Wilo recommends checking the flexible coupling elements regularly and replacing them at the first sign of wear. • Wilo recommends briefly putting the standby pumps into operation at least once a week to ensure they are always ready for operation. Maintenance tasks The impeller shaft is supported by cylindrical roller bearings and inclined ball bearings. -
Page 30: Draining And Cleaning
Risk of injury and damage to property! • Dispose off the pump contents and rinsing fluid by taking the legal regulations into account. • Always wear protective clothing, protective gloves and protective goggles when working. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 31: Dismantling
Put the slide-in unit down at a safe workplace. To continue dismantling the slide-in unit, fix it vertically in position with the drive shaft facing downward. The kit must be removed vertically to avoid damage to the impellers, neck rings and other parts. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... - Page 32 4.3 3.3 8.1 8.3 8.2 Fig. 23: Bearing bracket 4.1A 4.1B Fig. 24: Shaft Remove the key (3.3). Pull off the thrower (4.5) and V-gaskets (4.3). Remove the bearing cover (4.2) and retaining ring (4.4). Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04...
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Page 33: Installation
Observe the drawings in the section “Spare parts”. 9.6.1 Installing the shaft/bearing 4.1A 4.1B bracket Fig. 25: Shaft 4.5 4.3 4.2 4.4 4.4 4.2 4.3 3.3 8.1 8.3 8.2 Fig. 26: Bearing bracket Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... - Page 34 Screw the housing cover (10) onto the bearing bracket with the interior hexagonal head screws (15). Push the rotating part of the mechanical seal (9.1) onto the shaft (optional: sleeve). Push the spacer (9.2) onto the shaft. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04...
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Page 35: Faults, Causes And Remedies
• Before all electrical work, disconnect the product from the mains and secure it against being switched on again without authorisation. • Electrical work must be carried out by a qualified electrician! • Observe local regulations! Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... -
Page 36: Faults
– Change the pipe layout or install an air vent valve Speed too low – with frequency converter operation – Increase frequency in the permissible – without frequency converter operation range – Check voltage Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... - Page 37 – Dismantle the seal and repair or replace it. water Improve the quality of the seal water Imbalance of the impeller – Rebalance the impeller Bearing damage – Exchange bearing Foreign object in the pump – Clean pump Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04...
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Page 38: Spare Parts
Table 12: Causes of error and remedies Spare parts Spare parts may be ordered via a local installer and/or Wilo customer service. List of original spare parts: Refer to the Wilo spare parts documentation and the following information in these installation and operating instructions. -
Page 39: Disposal
Observe the locally applicable regulations! Please consult your local municipality, the nearest waste disposal site, or the dealer who sold the product to you for information on proper disposal. Further recycling information at http://www.wilo-recycling.com. Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04... - Page 40 Subject to change without prior notice! Installation and operating instructions • Wilo-Atmos GIGA-NX • Ed.01/2025-04...
- Page 44 Local contact at www.wilo.com/contact WILO SE Wilopark 1 44263 Dortmund Germany T +49 (0)231 4102-0 T +49 (0)231 4102-7363 wilo@wilo.com Pioneering for You www.wilo.com...
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