Related Manuals for Grundfos CRN 95-6-3
Summary of Contents for Grundfos CRN 95-6-3
- Page 1 GRUNDFOS INSTRUCTIONS CR, CRN 95-255 North America Installation and operating instructions...
- Page 3 CR, CRN 95-255 English (US) Installation and operating instructions ......4 Français (CA) Notice d'installation et de fonctionnement.
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Page 4: Table Of Contents
Installation guidelines ... . . 14 Grundfos will not be liable for any costs of Foundation ....16 removal, installation, transportation, or any other Vibration dampening . -
Page 5: General Information
Grundfos or authorized service center under the provisions of these limited warranty If these instructions are not observed, terms will continue to be covered by Grundfos it may result in malfunction or damage warranty only through the remainder of the to the equipment. -
Page 6: Product Introduction
CR, CRN pumps are suitable for pumping thin, clean, non-flammable, non-combustible or non- These installation and operating instructions explosive liquids, not containing solid particles or describe Grundfos CR, CRN 95-255 pumps fitted fibers. with 60 Hz NEMA motors. When pumping liquids with a density and/or viscosity higher than that of water, use motors 3.1 Applications... -
Page 7: Identification
E-pump without operating panel Impeller diameter Horizontal version External reference Different pressure rating (Other Equipment Manufacturer number) E-pump with a different maximum speed Production code Pump with low NPSH Country of origin Pump including Grundfos CUE and Approval marks certificate... - Page 8 Code Description Code Description Magnetic drive Flanges EN 1.4408 With sensor PEEK neck ring Cleaned and dried Silicon carbide/silicon carbide bearing in pump and silicon carbide/silicon carbide Undersize motor seal faces in thrust handling device High-pressure pump with high-speed Silicon carbide/silicon carbide bearing MGE motor PTFE neck rings Belt-driven pump...
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Page 9: Receiving The Product
Do not use the motor eyebolts to lift the entire pump if the pump is fitted 335 (250) with a motor of another make than Phase and voltage (V) Grundfos ML, MLE and MG, MGE. 1 x 200-240 V ‐ Follow the lifting instructions. ‐... - Page 10 • Lifting the motor with or without the motor 4.4.2 Lifting the motor off the pump stool: See the section on lifting the motor off the pump. • Horizontal lift: See the section on lifting the product in horizontal position. •...
- Page 11 Horizontal lift of pumps with 10-30 HP (7.5 - 22 kW) Grundfos ML, MLE and MG, MGE motors* stop stop * See also the section on lifting of pumps fitted with MLE and MGE motors.
- Page 12 MLE and MGE motors. 4.4.6 Lifting the product in vertical position Raising or laying down pumps with 10-30 HP (7.5 - 22 kW) Grundfos ML, MLE and MG, MGE motors* Vertical lift of pumps with 7.5 HP (5.5 kW)
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Page 13: Mechanical Installation
Before the pump is used for Vertical lift of pumps with 10-30 HP (7.5 - 22 supplying drinking water, flush the kW) Grundfos ML, MLE and MG, MGE motors pump thoroughly with clean water. ‐ Do not use the pump for drinking... -
Page 14: Drive-End Motor Bearing
Related information (VFD) 3.4 Type key To avoid bearing current when operating the 5.2 CRN 95, 125, 155 high-pressure pump with VFD, Grundfos recommends using an range isolated bearing system for the following motor sizes: • 2-pole motors: ≥ 60 HP (45 kW) - Page 15 Illustration Information Arrows on the pump base plate show the direction of flow of liquid through the pump. These dimensions are stated in the appendix: • port-to-port lengths • dimensions of the base plate • pipe connections • diameter and position of anchor bolts. The pump can be installed vertically and horizontally.
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Page 16: Foundation
5.5 Foundation WARNING Falling objects Death or serious personal injury ‐ Keep the product in a stable and fixed position before installing it. ‐ Make sure that the foundation is suitable for the weight of the product. We recommend that you install the pump on a concrete foundation which is heavy enough to provide permanent and rigid support for the entire pump. -
Page 17: Vibration Dampening
Anchor bolts Pos. Description The foundation must be provided with anchor Expansion joints bolts for fixing the base plate. Vibration dampers Anchor bolt in foundation When the anchor bolts are in position, place the pump on the foundation. Then align the base plate using shims, if necessary, so that it is completely horizontal. -
Page 18: Tightening Torques
5.8 Tightening torques Metric bolts: Base plate anchor bolts WARNING CR, CRN Bolt size Torque Flange gasket blowout Death or serious personal injury [∅ mm] [Nm] [lbf-ft] ‐ Tighten flange bolts according to 95 with the specified torque values. optional ⌀... -
Page 19: Flange Forces And Torques
5.9 Flange forces and torques If not all loads reach the maximum permissible value stated in the tables below, one of these values may exceed the normal limit. Contact Grundfos for further information. Y-direction: Inlet or outlet Z-direction: Direction of chamber stack X-direction: 90°... -
Page 20: Electrical Connection
• SFA (service factor amps) that it cannot be accidentally Grundfos MG motors marked switched on. with both of the below for 60 ‐ Connect the pump to an external main switch close to the pump and •... -
Page 21: Starting Up The Product
7. Starting up the product 7.1 Startup procedure 1. Close the isolating valve on the outlet side of WARNING the pump and open the isolating valve on the inlet side. Corrosive liquids Death or serious personal injury ‐ Wear personal protective equipment. -
Page 22: Shaft Seal Run-In
Wear personal protective equipment. The sound pressure levels listed in the appendix 7.2 Shaft seal run-in relate to airborne noise emitted by pumps with motors fitted by Grundfos. WARNING WARNING Corrosive liquids Death or serious personal injury Too high pressure and leakage ‐... -
Page 23: Servicing The Product
Pumped liquid which is drained off the entire pump if the pump is fitted or leaks from the pump must be with a motor of another make than collected for safe disposal. Grundfos ML, MLE and MG, MGE. ‐ Follow the lifting instructions. CAUTION ‐... -
Page 24: Contaminated Pumps
Grundfos ML, MLE and MG, MGE. health or toxic. If you request Grundfos to service the product, contact Grundfos with details about ‐... -
Page 25: Taking The Product Out Of Operation
Do not use the motor eyebolts to lift WARNING the entire pump if the pump is fitted Toxic liquids with a motor of another make than Death or serious personal injury Grundfos ML, MLE and MG, MGE. ‐ Wear personal protective ‐ Follow the lifting instructions. equipment. -
Page 26: Storing The Product
CAUTION Hot or cold surface Minor or moderate personal injury ‐ Make sure that no one can accidentally come into contact with hot or cold surfaces. Related information 4.4 Lifting the product 10. Storing the product 10.1 Frost protection CAUTION Hot or cold liquid Minor or moderate personal injury ‐... -
Page 27: Fault Finding The Product
11. Fault finding the product WARNING Falling objects DANGER Death or serious personal injury Electric shock ‐ Keep the product in a stable and Death or serious personal injury fixed position when working on it. ‐ Before starting any work on the product, make sure that the power CAUTION supply has been switched off and... -
Page 28: The Motor-Protective Circuit Breaker Trips Occasionally
11.3 The motor-protective circuit breaker trips occasionally Cause Remedy The motor-protective circuit breaker setting is too Set the motor-protective circuit breaker correctly. low. Low voltage at peak times. Ensure a stable power supply. 11.4 The motor-protective circuit breaker has not tripped, but the pump does not run Cause Remedy Supply failure. -
Page 29: Noise
11.9 Noise Cause Remedy Cavitation. Check the inlet conditions. The pump does not rotate freely due to frictional Adjust the pump shaft as described in the service resistance as a result of incorrect pump shaft documentation. See the section on service position. -
Page 30: Technical Data
12. Technical data 12.1.4 Minimum inlet pressure We recommend that you calculate the inlet 12.1 Operating conditions pressure "H" in these situations: • The liquid temperature is high. 12.1.1 Ambient temperature and altitude • The flow rate is significantly higher than the See the instructions for the motor which are rated flow rate. -
Page 31: Electrical Data
1.6 m head. 2. If this is not possible, contact the nearest Pressure in bar: 1.6 x 0.0981 = 0.157 bar. Grundfos company or service workshop. Pressure in kPa: 1.6 x 9.81 = 15.7 kPa. 12.1.5 Maximum permissible inlet pressure... - Page 32 Appendix A A.1. NPSH NPSH...
- Page 33 CR, CRN 95-1-1 → 95-2-2 145 (10) CR, CRN 95-2-1 → 95-4-1 218 (15) CR, CRN 95-4 → 95-5-1 290 (20) CRN 95-6-3 → 95-8 290 (20) CR, CRN 125 CR, CRN 125-1-1 → 125-1 145 (10) CR, CRN 125-2-2 → 125-3-2 218 (15) CR, CRN 125-3-1 →...
- Page 34 A.3. Dimensions FR-CA: Dimensions ES-MX: Dimensiones TM002256 TM070440 TM002252...
- Page 35 ES-MX: Los niveles de presión sonora 2-pole 60 Hz NEMA LpA (ISO 3743-2 / ISO LpA (ISO 3744) LpA (ISO 3744) 1680 60 Hz) Motor WEG TEFC Grundfos ML TEFC WEG ODP Phases [dB(A)] [dB(A)] [dB(A)] 1 1/2 7 1/2 64.5...
- Page 36 A.5. Vapor pressure H FR-CA: Pression de vapeur H ES-MX: Presión de vapor H t m (°C) H v (m) ° [ Ft]...
- Page 37 2941 Brighton Road Oakville, Ontario L6H 6C9 Tel.: +1-905 829 9533 Fax: +1-905 829 9512 Mexico Bombas GRUNDFOS de México S.A. de C.V. Boulevard TLC No. 15 Parque industrial Stiva Aeropuerto Apodaca, N.L. 66600 Tel.: +52-81-8144 4000 Fax: +52-81-8144 4010...
- Page 38 99347135 08.2022 ECM: 1345704 www.grundfos.com...
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