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Table of Contents
- 1 Table of Contents
- 2 Important Safety Precautions
- 3 Avoiding Damage to the Pump
- 4 Product Information
- 5 Restrictions on Use
- 6 Setup
- 7 Installation
- 8 Electrical Wiring
- 9 Operation
- 10 Maintenance and Inspection
- 11 Part Names and Specifications
- 12 Troubleshooting
- 13 After-Sales Service
- 14 Limited Warrant
- Download this manual
Read This Instruction Manual Before Use!
Introduction
Thank you for purchasing ShinMaywa's lightweight submersible pump, NORUS . This Instruction Manual
describes how to use and maintain NORUS pumps. To ensure correct operation, read this Instruction
Manual carefully before using the pump and keep this Instruction Manual close at hand for future reference.
When transferring the pump to others, ensure that this Instruction Manual is also included. In the event of
any breakdown or malfunction of the pump, please contact the distributor from which you purchased the
pump.
Unpacking
When receiving the pump, please check that there has been no damage during transportation and that the
quantity and type of accessories, and the description on the nameplate, are all correct. In the case of
damage or missing parts, please contact the distributor from which you purchased the pump.
Contents:
Pump
Instruction Manual
Spare Nameplate
Pipe (for Float Switch)
Table of Contents
LIGHTWEIGHT SUBMERSIBLE PUMP
CR/CRS/CRC/CRXP
INSTRUCTION MANUAL
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1 unit
1 copy
1
1(D:/W type only)
Annex: Request for Warranty Repair
1
ZF1987-3
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Table of Contents
Related Manuals for ShinMaywa NORUS CR series
Summary of Contents for ShinMaywa NORUS CR series
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Page 1: Table Of Contents
Read This Instruction Manual Before Use! Introduction Thank you for purchasing ShinMaywa's lightweight submersible pump, NORUS . This Instruction Manual describes how to use and maintain NORUS pumps. To ensure correct operation, read this Instruction Manual carefully before using the pump and keep this Instruction Manual close at hand for future reference. -
Page 2: Important Safety Precautions
Important Safety Precautions Safety symbols in this Instruction Manual are defined as follows. Panel or Symbol Definition Symbol Definition DANGER warning that incorrect A mandatory or required action operation will result in death or DANGER serious injury warning that incorrect Mandatory required WARNING... - Page 3 Do not ground the pump to a gas pipe, water pipe, lightning rod, or telephone line. Never ground the pump to a gas pipe, water pipe, lightning rod or telephone line because it is extremely dangerous. Install a ground fault interrupter (GFI) To reduce the risk of electric shock, install a ground fault interrupter (GFI) on the power supply to which the pump is connected in compliance with the National Electrical Code (NEC) and local codes.
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Page 4: Avoiding Damage To The Pump
c. AVOID INJURY HANDS, ARMS OR OTHER EXTREMITIES; DANGER Turn off the pump before inspection or repair. DO NOT PLACE HANDS OTHER BODY PARTS CLOSE TO PUMP WHILE IT IS TURNED ON, AS THIS MAY RESULT IN ELECTRICAL SHOCK, DROWNING OR HANDS/BODY PARTS BEING FORCED INTO PUMP;... -
Page 5: Product Information
1 Product Information a) Features of the Pump ShinMaywa’s lightweight submersible pumps, NORUS use stainless steel and high-performance resin for those parts that come in contact with liquid so that they are corrosion resistant. MODEL 2 . 4 BORE(mm) OUTPUT 50: 50mm : 0.1kW... -
Page 6: Restrictions On Use
c) Methods of Operation Model Operation control Summary With no special control system, the pump starts when the power supply is turned on Non-automatic operation and stops when the power supply is turned CRXP off. CR-D Automatic operation The pump operates automatically, with CRS-D (with an automatic drain) water levels for starting/stopping the pump... - Page 7 b) Applicable Operating Environment DANGER This pump is not explosion-proof. To avoid fire or explosion, do not use the pump in a flammable or explosive atmosphere. c) Operation Time The pump may be operated continuously for 24 hours per day as long as the pump is completely submerged and the water level is above the minimum water level for continuous operation (dim.
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Page 8: Setup
Guide Rail System Type MODEL CRXP 0.15 0.25 0.4 0.75 OUTPUT (kW) 0.1/0.15/0.25/0.4/0.75 0.75 0.75 1/5,1/3,1/2,1 1/8,1/5,1/3,1/2,1 Connection P50RL P50RL P50RH P50RL Model A Metric (mm) 6.30 inch 6.30 8.70 B Metric (mm) inch 13.58 13.58 14.17 14.96 17.4 3 Setup a) Grounding WARNING Before using the pump, ensure that it has been grounded and wired by a qualified electrician in... - Page 9 d) Checking the Direction of Impeller Rotation (when using three-phase AC power) Check the direction of reaction immediately after starting the pump to see if the impeller rotates in the normal direction. Especially when using 2’’ NPT flange type pump, check the direction of impeller rotation before installing the pump because it is difficult to check it once it has already been installed.
- Page 10 2 NPT Flange Type MODEL OUTPUT(kW) 0.15/0.25 0.4/0.75 0.1/0.15 0.25 0.4/0.75 0.4/0.75 1/5,1/3 1/2,1 1/2,1 1/2,1 1/8,1/5 Flange Model Metric (mm) inch 5.91 6.10 4.13 4.92 5.31 5.51 Metric (mm) inch 7.28 7.48 5.51 5.43 6.69 Guide Rail System Type MODEL 0.15/ 0.25/ 0.4/ 0.75 0.1/0.15/0.25/ 0.4/ 0.75...
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Page 11: Installation
4 Installation Examples of installation Fig.1 An example of the guide rail system type Fig. 2 An example of the 2” NPT flange type Guide Rail System Type 1. Attach the Guide Holder and the Connection, taking the positions of the pump and its piping into consideration. -
Page 12: Electrical Wiring
2 NPT Flange Type Install the pump and connect it to the piping as shown in Fig. 2. NOTICE To avoid the risk of impeller lock and abrasive, do not install the pump on the sandy soil directly. Especially, installing the pump inside the pond is prohibited. The pump must be installed in the tank which takes water through the intake channel from the pond. -
Page 13: Operation
Improper wiring can lead to current leakage, electrical shock, or fire. When using a three-prong grounded plug, connect it as shown in the drawing. When a single-phase power source is used, connect the leads to the control panel terminals as shown in the drawing, making sure they do not become entangled. -
Page 14: Maintenance And Inspection
Test operation 1) Turn the power on and start the pump. (Note that the automatic operation type and automatic alternate operation type do not start until the water level rises higher than the operating water level.) 2) Check if there is any abnormality with regard to the pumping capacity, current, voltage, noise, or vibration, etc. - Page 15 When checking and replacing the lubricating oil, turn the pump on its side and remove the lubricating oil plug. Before removing the lubricating oil plug, check to see if the plug has been tightened securely so that if water is contained in the oil you can later identify the cause - whether the water seeped in from the loosened lubricating oil plug or from other sealed area(s).Be sure to replace the old gasket with a new one.
- Page 16 WARNING Before inspection or repair, turn off the power supply even if the pump is not in operation. The pump is equipped with a built-in motor protector which automatically stops/starts the pump and this may result in injury during inspection or repair.
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Page 17: Part Names And Specifications
8 Part Names and Specifications Part Names Cable Float Switch Handle Oil Plug Nameplate Stand Cap Companion Flange Top View Side View Standard Accessories Standard Accessories Quantity Standard Accessories Quantity Flange Connection Cable Float Switch Single Phase (D-W type only) STW 3Core 16AWG 20ft Extra Nameplate Three Phase... - Page 18 Specifications...
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Page 19: Troubleshooting
9 Troubleshooting Symptom Cause Solution 1. The pump does Disturbed electric transmission such Contact the utility company or an electrical contractor. start, as a power outage or low voltage starts soon Poor connection of the power supply Inspect/correct the circuit. stops again. - Page 20 Symptom Cause Solution The direction of rotation of the pump Interchange two phases of the 4. The pumping capacity is reduced is incorrect (when three-phase power wiring of the power supply. or no water is is used). Check the air vent valve or water discharged.
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Page 21: After-Sales Service
ShinMaywa shall, at its election, replace or repair any when notice of defect in the Product is given within the warranty period and when ShinMaywa determines the Product to be defective in materials or workmanship. - Page 22 Component Parts Manufactured by Third Parties: Any component parts of Products sold by ShinMaywa but manufactured by a third party will be subject to the warranty (if any) issued by such third party. ShinMaywa's only obligation shall be to assign to you, to the extent possible, any warranty ShinMaywa receives from the manufacturer.
- Page 23 Date of purchase: Month and year of starting operation: Month and year in which defect is discovered: Description of use Description of defect ShinMaywa Industries, Ltd http://www.shinmaywa.co.jp E-mail sales.info@sb.shinmaywa.co.jp Overseas Sales Department ( Yokohama, Japan ): Phone +81-45-584-1321 Fax +81-45-584-1320...
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Do you have a question about the NORUS CR series and is the answer not in the manual?
Questions and answers
Pump runs when out of the water, but when replaced in the pond, it trips my Gfi
The ShinMaywa NORUS CR series pump may trip the ground fault interrupter (GFI) when placed back in the pond due to several possible reasons:
1. Electrical Leakage – Water exposure may cause insulation degradation or leakage current, triggering the GFI.
2. Damaged Power Cord – If the power cord or strain relief is damaged, it can result in a ground fault.
3. Improper Grounding – The pump must be properly grounded according to safety instructions. Grounding to a gas pipe, water pipe, or other improper sources is dangerous.
4. Moisture Ingress – If water has entered the pump housing or electrical components, it can cause a short circuit or leakage current.
5. Defective Pump – If the pump has an internal fault, such as a short or component failure, it may cause the GFI to trip.
Inspect the pump, power cord, and connections for damage or moisture. If the issue persists, contact the distributor for further assistance.
This answer is automatically generated