Wilo CronoNorm-NL Series Installation And Operating Instructions Manual
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Wilo CronoNorm-NL Series Installation And Operating Instructions Manual

Wilo CronoNorm-NL Series Installation And Operating Instructions Manual

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Pioneering for You
Wilo-CronoNorm-NL, NLG
en Installation and operating instructions
2 136 329-Ed.03 / 2013-07-Wilo

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Summary of Contents for Wilo CronoNorm-NL Series

  • Page 1 Pioneering for You Wilo-CronoNorm-NL, NLG en Installation and operating instructions 2 136 329-Ed.03 / 2013-07-Wilo...

  • Page 3: Table Of Contents

    Permissible forces and torques on the pump flanges ..................13 Installation and electrical connection ....................15 Preparation ................................15 Setting up the pump alone (variant B, according to Wilo variant key) ............15 Installation on a base of the pump unit ......................16 Pipework ................................18 Aligning the unit ..............................
  • Page 4 Faults, causes and remedies ......................38 10.1 Faults ..................................38 10.2 Causes and remedies ............................39 Spare parts ............................41 11.1 Spare parts lists, Wilo-CronoNorm-NL ......................42 11.2 Spare parts lists, Wilo-CronoNorm-NLG ......................46 Disposal ..............................50 Installation and operating instructions Wilo-CronoNorm-NL, NLG...

  • Page 5: General

    There is a risk of damaging the product/unit. “Caution” concerns possible damage to the product that could occur if this note is dis- regarded. NOTE: Useful information on handling the product. It draws attention to possible problems. Installation and operating instructions Wilo-CronoNorm-NL, NLG...

  • Page 6: Personnel Qualifications

    This book does not discuss all details or frequent deviations. Additional information is available from the manufacturer. • If there are any doubts about the function or setting of parts of the equipment, contact the manufacturer immediately. WILO SE 07/2013...

  • Page 7: Safety Instructions For Installation And Maintenance Work

    Immediately on conclusion of the work, all safety and protective devices must be put back in position and/or recommissioned. Pumps which pump hazardous fluids must be decontaminated. Installation and operating instructions Wilo-CronoNorm-NL, NLG...

  • Page 8: Unauthorised Modification And Manufacture Of Spare Parts

    CAUTION! Risk of damage due to incorrect packaging! If the pump is transported again at a later time, it must be packaged so that it cannot be damaged during transport. • Use the original packaging for this, or choose equivalent packaging. WILO SE 07/2013...

  • Page 9: Transport For Installation/Dismantling Purposes

    Only remove the sealing devices attached to the flanges of the pump during installation in order to prevent any pump contam- ination. Fig. 1: Transporting the pump Fig. 2: Transportation of the complete unit Installation and operating instructions Wilo-CronoNorm-NL, NLG...

  • Page 10: Removing/Replacing Corrosion Protection (Only Nl Pumps)

    If the pump is stored for longer than 6 months, the corrosion protec- tion film for protecting the inner parts of the pump must be applied again regularly.Contact the manufacturer with regard to choosing suitable products. WILO SE 07/2013...

  • Page 11: Intended Use

    • Intended use of the pump/installation also includes following these instructions. • Any use above and beyond these is regarded as improper use. Product information Type key The type key of a pump of type Wilo-CronoNorm-NL consists of the following elements: Example: NL 40/200B-11/2 Series designation: Standard pump...

  • Page 12: Technical Data

    • The fluid must be free of sediments. • Wilo's approval must be obtained for use of other media. • Mixtures with a proportion of glycol of > 10% influence the Δp-v pump curve and the flow calculation.

  • Page 13: Scope Of Delivery

    The mechanical seal is maintenance-free. In conjunction with a Wilo control device (e.g. VR-HVAC, CC-HVAC), the power of the pumps can be continuously controlled. This allows optimisation of the pump output for the demands of the installation and economically efficient pump operation.

  • Page 14: Anticipated Noise Levels For Standard Pumps

    1450 min ≤ 0.55 0.75 18.5 Tab. 2: Anticipated noise levels for standard pumps 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 WILO SE 07/2013...

  • Page 15: Permissible Forces And Torques On The Pump Flanges

    5220 1260 1460 1780 2620 3580 3220 4000 6260 1720 1980 2420 3560 4180 3760 4660 7300 2200 2540 3100 4560 Tab. 3: Permissible forces and torques on the pump flanges - Wilo-CronoNorm-NL series Installation and operating instructions Wilo-CronoNorm-NL, NLG...
  • Page 16 7120 5780 8900 12779 3120 4750 6370 8537 8450 6670 10230 14851 3660 5420 7320 9816 9120 7220 10920 15955 4150 5960 7720 10599 Tab. 4: Permissible forces and torques on the pump flanges - Wilo-CronoNorm-NLG series WILO SE 07/2013...

  • Page 17: Installation And Electrical Connection

    Setting up the pump alone (variant B, according to Wilo variant key) 7.2.1 General When installing a pump by itself (variant B, according to the Wilo var- iant key), the required components (coupling, coupling protection and baseplate of the manufacturer) should be used.

  • Page 18: Installation On A Base Of The Pump Unit

    • A professional from the concrete area must be hired for all base work. 7.3.1 Base Wilo recommends installing the pump unit on a stable, flat concrete base, which can support the unit long-term (see Fig. 5). This would prevent vibrations from being transmitted.
  • Page 19 2 ½ times the diameter of the screws, so that these can be moved to reach their final positions. Wilo recommends initially pouring the base up to about 25 mm below the planned height. The surface of the concrete base should be well contoured before curing.

  • Page 20: Pipework

    • The covers must be removed from the suction port and discharge port. • If required, a dirt filter is to be inserted in front of the pump in the pipe on the suction side. • Then connect the pipes to the pump connecting piece. WILO SE 07/2013...

  • Page 21: Aligning The Unit

    Check the axial alignment: Using a calliper gauge, circumferentially check the distance between the two coupling halves (see Fig. 13 and Fig. 14). Fig. 13: Checking the axial alignment with a calliper gauge Installation and operating instructions Wilo-CronoNorm-NL, NLG...
  • Page 22 Pay attention to the axial alignment of the coupling. • Tighten the hexagon head bolts again. • Finally, check the function of the coupling and shaft. The coupling and shaft must be easy to turn by hand. • After correct alignment, mount the coupling protection. WILO SE 07/2013...

  • Page 23: Electrical Connection

    Furthermore, cables must be bent off to form outlet loops near screwed connections to avoid the accu- mulation of drip water. Installation and operating instructions Wilo-CronoNorm-NL, NLG...

  • Page 24: Protective Devices

    • Make sure the venting screw is in a suitable position. • Always exercise caution when opening the venting screw. WILO SE 07/2013...

  • Page 25: Checking The Direction Of Rotation

    • All blind flanges are removed and the check valve on the suction side of the pump is completely opened. • The check valve in the pressure pipe of the pump is completely closed or only slightly opened. Installation and operating instructions Wilo-CronoNorm-NL, NLG...

  • Page 26: Leak Check

    • If the leakage rate is too low, increase it by loosening the nuts. • Watch the leakage during the first couple operating hours at the max- imum fluid temperature. At the least amount of delivery pressure, there must be sufficient leakage. WILO SE 07/2013...

  • Page 27: Switch-On Frequency

    • The interior of the pump is to be sprayed with a preservative through the suction and pressure ports. Wilo recommends sealing the suction and pressure ports using caps afterwards. • Bare components are to be greased or oiled. For this, use silicone-free grease or oil.Observe the manufacturer instructions for preservatives.

  • Page 28: Maintenance/Repair

    Safety Only have maintenance and repair work carried out by qualified personnel! It is recommended to have the pump serviced and checked by Wilo Customer Service. DANGER! Risk of fatal injury! Deadly electric shock may occur when working on electrical equip- ment.

  • 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.

  • Page 30: Dismantling

    • Remove the fastening screws of the motor from the baseplate. NOTE: For installation work, please also observe the sectional drawings in section 11.1 “Spare parts lists, Wilo-CronoNorm-NL” on page 42 as well as in section 11.2 “Spare parts lists, Wilo-CronoNorm-NLG” on page 46.
  • Page 31 • Remove the rotating part of the mechanical seal (9.1). • Loosen the internal hexagon head bolts (15) and remove the housing cover (10). See Fig. 20: • Remove the stationary part of the mechanical seal (9.1). Fig. 20: Housing cover, mechanical seal Installation and operating instructions Wilo-CronoNorm-NL, NLG...
  • Page 32 • Loosen the hexagon screw (8.2), remove the safety disk (8.3) and remove the pump base (8.1). See Fig. 23: • Completely remove the shaft (3.1). • Remove the roller bearings (4.1A and 4.1B) with the support disks (4.4), if applicable. 4.1A 4.1B Fig. 23: Shaft WILO SE 07/2013...
  • Page 33 English 9.5.3 Dismantling the Wilo-CronoNorm- NOTE: For installation work, please also observe the sectional drawings in section 11.2 “Spare parts lists, Wilo-CronoNorm-NLG” on page 46. Slide-in unit Slide-in unit: Fig. 24: Slide-in unit See Fig. 24: • Mark positions of the parts which belong together with a coloured pen or scriber.
  • Page 34 • Loosen the hexagon head bolts (5.5) and remove the stuffing box gland (5.4). • Remove packing rings (5.11) and blocking ring (5.3). • Remove the shaft sleeve (5.12), and take the interior O-ring (5.13) out of the shaft sleeve. WILO SE 07/2013...

  • Page 35: Installation

    • Pull the bearings (6.1 and 6.2) off of the shaft. Stationary wear rings: The Wilo-CronoNorm-NLG is standard-equipped with exchangeable stationary wear rings. During operation, the gap backlash increases due to wear. The period of use of the rings depends on the operating conditions.
  • Page 36 • The safety instructions and regulations according to chapter 2 “Safety” on page 3 and section 9.1 “Safety” on page 26 are to be taken into consideration for all maintenance and repair work. 9.6.1 Installation of Wilo-CronoNorm-NL Shaft/bearing bracket For shaft, see Fig. 23: •...
  • Page 37 • Fasten the bearing cover (11) with hexagon head bolts (15). • Insert the key (3.3). • Fasten the pump base (8.1) with washer (8.3), spring disk (8.4) and the hexagon head bolt (8.2). Installation and operating instructions Wilo-CronoNorm-NL, NLG...
  • Page 38 If the packing is delivered in the form of a cord, this must be cut off. • For this purpose, wind the packing helically around the shaft sleeve or around a clamping chuck of the same diameter. Fig. 32: Example for a straight cut WILO SE 07/2013...

  • Page 39: Screw Tightening Torques

    • Carefully insert the slide-in unit into the spiral housing (1.1) and tighten with the hexagon head bolts (12). • Mount the protective screen (7.1) with hexagon head bolts (7.2). Screw tightening torques Screw tightening torques: Fig. 34: Screw tightening torques Installation and operating instructions Wilo-CronoNorm-NL, NLG...

  • Page 40: Faults, Causes And Remedies

    Delivery rate too low Motor overloaded Pump end pressure too high Bearing temperature too high Leakage on the pump housing Shaft seal leakage Pump doesn't run smoothly or is loud Pump temperature too high Tab. 12: Error types WILO SE 07/2013...

  • Page 41: Causes And Remedies

    • Replace the mechanical seal • Tighten the stuffing box or repack Shaft sleeve (if present) worn • Replace the shaft sleeve • Repack the stuffing box Imbalance of the impeller • Rebalance the impeller Installation and operating instructions Wilo-CronoNorm-NL, NLG...
  • Page 42 Remedy Bearing damage • Exchange bearing Foreign matter in the pump • Clean pump Pump pumps against closed check • Open the check valve in the pres- valve sure pipe Tab. 13: Causes of error and remedies WILO SE 07/2013...

  • Page 43: Spare Parts

    English Spare parts Spare parts may be ordered via a local specialist retailer and/or Wilo after-sales service. In order to avoid queries and incorrect orders, all data on the rating plate should be submitted for each order. CAUTION! Risk of damage to property! Trouble-free pump operation can only be guaranteed when origi- nal spare parts are used.

  • Page 44: Spare Parts Lists, Wilo-Crononorm-Nl

    English 11.1 Spare parts lists, Wilo-CronoNorm- 11.1.1 Wilo-CronoNorm-NL version with For a list of spare parts, see Tab. 14. mechanical seal 4.1A 4.1B 7.1 7.2 Fig. 35: Wilo-CronoNorm-NL version with mechanical seal WILO SE 07/2013...
  • Page 45 Hexagon head bolt Pump base Hexagon head bolt Safety disk Mechanical seal Spacing ring Housing cover Hexagon head bolt Internal hexagon screw Hexagon head bolt Tab. 14: Spare parts list, Wilo-Crononorm-NL, version with mechanical seal Installation and operating instructions Wilo-CronoNorm-NL, NLG...
  • Page 46 English 11.1.2 Wilo-CronoNorm-NL version with For a list of spare parts, see Tab. 15. stuffing box packing 7.1 7.2 1.2 9.5 4.1A 4.1B 3.2 9.8 1.3 Fig. 36: Wilo-CronoNorm-NL version with stuffing box packing WILO SE 07/2013...
  • Page 47 Hexagon nut Seal Washer Housing cover Shaft sleeve Stuffing box gland Stuffing box sleeve Hexagon head bolt Internal hexagon screw Hexagon head bolt Tab. 15: Spare parts list, Wilo-Crononorm-NL, version with stuffing box packing Installation and operating instructions Wilo-CronoNorm-NL, NLG...

  • Page 48: Spare Parts Lists, Wilo-Crononorm-Nlg

    English 11.2 Spare parts lists, Wilo-CronoNorm- 11.2.1 Wilo-CronoNorm-NLG version with For a list of spare parts, see Tab. 16. mechanical seal 5.11 5.12 Fig. 37: Wilo-CronoNorm-NLG version with mechanical seal WILO SE 07/2013...
  • Page 49 Hexagon head bolt 12/16 Housing Hexagon head bolt Bearing bracket Hexagon head bolt Bearing, on pump side Hexagon head bolt Bearing, on the motor side Tab. 16: Spare parts list, Wilo-Crononorm-NLG, version with mechanical seal Installation and operating instructions Wilo-CronoNorm-NL, NLG...
  • Page 50 English 11.2.2 Wilo-CronoNorm-NLG version with stuffing box packing For a list of spare parts, see Tab. 17. 5.11 5.12 5.13 Fig. 38: Wilo-CronoNorm-NLG version with stuffing box packing WILO SE 07/2013...
  • Page 51 Hexagon head bolt 12/16 Housing Hexagon head bolt Bearing bracket Hexagon head bolt Bearing, on pump side Hexagon head bolt Bearing, on the motor side Tab. 17: Spare parts list, Wilo-Crononorm-NLG, version with mechanical seal Installation and operating instructions Wilo-CronoNorm-NL, NLG...

  • Page 52: Disposal

    2. For more information on proper disposal, please contact your local council or waste disposal office or the supplier from whom you obtained the product. Technical information subject to change without prior notice! WILO SE 07/2013...
  • Page 53 EN 60034-1 ainsi qu’aux normes (européennes) harmonisées suivantes: Bevollmächtigter für die Zusammenstellung der technischen Unterlagen ist: WILO SE Division Pumps & Systems Authorized representative for the completion of the technical documentation: PBU Pumps - Quality Personne autorisée à...
  • Page 54 EN 60034-1 ainsi qu’aux normes (européennes) harmonisées suivantes: Bevollmächtigter für die Zusammenstellung der technischen Unterlagen ist: WILO SE Division Pumps & Systems Authorized representative for the completion of the technical documentation: PBU Pumps - Quality Personne autorisée à...
  • Page 55 EG-verklaring van overeenstemming Dichiarazione di conformità CE Declaración de conformidad CE Hiermede verklaren wij dat dit aggregaat in de geleverde uitvoering voldoet aan de Con la presente si dichiara che i presenti prodotti sono conformi alle seguenti disposizioni Por la presente declaramos la conformidad del producto en su estado de suministro con las volgende bepalingen: e direttive rilevanti: disposiciones pertinentes siguientes:...
  • Page 57  $OFDO– GH +HQDUHV :,/2 9LHWQDP &R /WG DE14 2WJ  *DQJVHR %XVDQ 4050-040 Porto (Madrid) T +55 11 2923 (WILO) +R &KL 0LQK &LW\ 9LHWQDP T +82 51 950 8000 T +351 22 2080350 T +34 91 8797100 9456...
  • Page 58 WILO SE Nortkirchenstraße 100 D-44263 Dortmund Germany T +49(0)231 4102-0 F +49(0)231 4102-7363 wilo@wilo.com Pioneering for You www.wilo.com...

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