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Summary of Contents for Wilo Atmos GIGA-NHT
- Page 1 Pioneering for You Wilo-Atmos GIGA-NHT en Installation and operating instructions · 8249758 • Ed.01/2023-10...
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Page 3: Table Of Contents
6 Installation and electrical connection ........ 16 Personnel qualifications............. 16 Operator responsibilities ........... 16 Preparing the installation .......... 17 Setting up the pump by itself (variant B, Wilo variant key) .................... 17 Installing the pump unit on a base ........ 18 Pipework ................ 19 Aligning the unit .............. 20 Electrical connection............ 24... -
Page 4: General Information
Consequences of danger and instructions for avoidance. • Safety 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. Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... - Page 5 Personal protective equipment: wear a safety helmet Personal protective equipment: wear foot protection Personal protective equipment: wear hand protection Personal protective equipment: wear mouth protec- tion Personal protective equipment: wear safety goggles Useful information Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10...
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Page 6: Personnel Qualifications
Only use legally specified and approved lifting gear. • Select lifting gear based on the available conditions (weather, attachment point, load, etc.). • Always attach the lifting gear to the designated attachment points (lifting eyes). Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... -
Page 7: Installing/Dismantling
The work area in which the product is used is not a recreational area. No persons are allowed in the work area during operation. • The operator must report any faults or irregularities to a line manager immediately. Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... - Page 8 Hazards due to noise Observe the sound pressure specifications on the motor rating plate. The sound pressure value of the pump is generally about the same value as that of the motor +2 dB(A). Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10...
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Page 9: Maintenance Tasks
The hydraulics have a standardised connection flange for in- stalling an IEC standard motor. See the technical data for the per- formance data (e.g. size, construction, hydraulic rated power, speed) needed to select a motor. Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... -
Page 10: Operator Responsibilities
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! Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... - Page 11 If necessary, use a lifting arm, to which the lifting gear can be vertically attached. • Ensure the load is lifted vertically! • Prevent the suspended load from swinging! Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10...
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Page 12: Storage
– Consult the manufacturer. Application/use The glanded pumps from the Wilo-Atmos GIGA-NHT series are intended for use in district Intended use heating systems or industrial applications with overheated water or heat carrier oil. The Wilo-Atmos GIGA-NHT pumps may be used for: •... -
Page 13: Product Description
Intended use also includes compliance with this manual. Any other use is regarded as non- compliant with the intended use. Product description The Wilo-Atmos GIGA-NHT pump is a single-stage back pull-out-centrifugal pump with Design spiral housing for horizontal installation. Dimensions in accordance with EN 733. -
Page 14: Type Key
Anticipated noise levels 5.7.1 Pump with three-phase motor, Motor power P [kW] Measuring surface sound-pressure level Lp, A [dB(A)] 50 Hz without speed control 2-pole (2900 rpm) 4-pole (1450 rpm) 0.37 – 0.55 0.75 Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... - Page 15 18.5 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 2: Anticipated noise levels for norm pump (60 Hz) Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10...
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Page 16: Permissible Forces And Torques On The Pump Flanges
Structural 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 responsible for the provision and suitability of the building/foundation! Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... -
Page 17: Preparing The Installation
Hydraulic power: 12.5 kW 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 18: 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 oscillations from being transmitted. -
Page 19: Pipework
• The expansion of the pipes in the event of a temperature rise is to be compensated by suitable means. • Avoid air pockets in piping by means of appropriate installations. Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... -
Page 20: Aligning The Unit
Precondition for reliable, smooth and efficient operation of a pump unit is proper alignment of the pump and the drive shaft. Misalignments can be the cause of: • excessive noise development during pump operation • vibrations • premature wear • excessive coupling wear Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... - Page 21 1800 rpm 3000 rpm 3600 rpm 0.20 0.20 0.15 0.15 0.20 0.20 0.15 0.15 0.20 0.20 0.15 0.15 0.20 0.20 0.15 0.15 0.25 0.20 0.15 0.15 0.25 0.25 0.20 0.15 0.30 0.25 0.20 0.20 Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10...
- Page 22 Using a calliper gauge, circumferentially check the distance between the two coupling halves. Fig. 15: Checking the axial alignment with a calliper gauge Fig. 16: Checking the axial alignment with a calliper gauge – circumferential check Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10...
- Page 23 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-NHT • Ed.01/2023-10...
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Page 24: Electrical Connection
Unused cable feedthroughs should be sealed with the sealing plates provided, and screwed tight. • Reinstall any uninstalled safety devices, such as terminal box covers! • Check the direction of rotation of the motor while commissioning! Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... -
Page 25: Commissioning
• The pump must not be operated outside of the specified operating range. • Do not operate the pump with the shut-off devices closed. • Make sure that the NPSHA value is always higher than the NPSHR value. Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... -
Page 26: Personnel Qualifications
Filling and venting NOTICE In the standard version of the Atmos GIGA-NHT pump, the air vent valve is not located on the pump housing, but rather on the sealing chamber. The suction line and pump are vented via a suitable venting device on the pressure flange of the pump. -
Page 27: Checking The Direction Of Rotation
Note: When pumping heat carrier oil, the pump only provides its full power when the fluid has reached the operating temperature. Before that, the viscosity of the liquid changes the duty point. Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... -
Page 28: Switching Frequency
If there is no danger of frost, make sure the fluid level is sufficient. • Operate the pump every month for 5 minutes. Doing this prevents deposits from occur- ring in the pump compartment. Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... -
Page 29: 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 30: 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 bearing bracket of the pump is equipped with a plain bearing and a grease-lubricated radial ball bearing, which have service life lubrication. - Page 31 Fig. 20: Dismantling the slide-in unit Loosen impeller nut 2.2 and remove it together with spring lock washer 2.3 and washer 2.4. Pull off impeller 2.1. 10. Remove shim 2.5. 11. Remove key 3.2. Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10...
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Page 32: Installation
• Coat location points with graphite or something similar before installation. • Check the O-rings for damage and replace if necessary. • Flat gaskets must be constantly replaced. Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... - Page 33 Attach pump support foot 8.1 with lock washer 8.3 and hexagon head screw 8.2 to the venting chamber 5.1. 9.6.2 Assembling the slide-in unit During the individual installation steps, always secure components against tipping! Ob- serve the markings made on parts that belong together during dismantling Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10...
- Page 34 Avoid damage to internal parts! Carefully insert the slide-in unit straight into the spiral housing 1.1. Slide washers 10.2 onto the studs 10.4, screw on hexagon nuts 10.3 and tighten them. Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10...
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Page 35: Faults, Causes And Remedies
Costs may be incurred if you request customer services! Please contact customer services for more information. 10.1 Faults Possible error types Error type Description Delivery rate too low Motor overloaded Pump end pressure too high Bearing temperature too high Pump housing leakage Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... -
Page 36: Causes And Remedies
Pump unit poorly aligned – Correct alignment Thrust too high – Clean the relief bores in the impeller – Check the condition of the neck rings Bearing lubrication not Check bearing, exchange sufficient bearing Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... -
Page 37: Spare Parts
Table 11: 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 38: Spare Parts List
Safety-relevant Pump housing Flat gasket Impeller Spring lock washer Washer Shim Shaft Ball bearing 4.2A Circlip 4.2B Circlip Bearing housing Circlip Shaft seal Bearing bracket Venting chamber Bolt Washer Supporting foot Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10... -
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. See www.wilo‑recycling.com for more information about recycling. Subject to change without prior notice! - 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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