Suitable for: Water Treatment Fertigation, Chemigation & Dosing. 2 people found this helpful. Max flow. The New Year could not get off to a better start with the news that all Grundfos Domestic Circulator pumps now have a five year warranty. PDF Grundfos CU 301 Manual (Quick Start Guide) PDF Grundfos CU 301 Manual Detailed. The CU301 Controller and Transducer allow the Grundfos SQE Submersible Pumps to operate as "constant pressure" pumps. The Grundfos SQ is a compact 3” multistage centrifugal pump, which can be installed in boreholes that are 3” or larger. Step 4 Turn off the water supply to the pump. 75hp, 1hp, and 1. Varianter. Answer: Check to see if the fuse has tripped. Where to buy Extranet. Pressure sensor Grundfos for CU 301, 0-6 bar (405168). Find The Right Part Right Now at Midwest. Rotor & spray irrigation. The 2 gallon pressure tank (sold separately), helps to prevent water hammer. Boulevard TLC no. Will give constant pressure when fitted with SQEN pump (No pressure fluctuations/no cycling) Simple to install /pump and motor protection. New Grundfos hydraulics reduce clogging problems and help build confidence into wastewater handling New hydraulics ensure operational reliability – a necessity for raw wastewater transport For A Craft Brewer Focused On Quality Water, Grundfos Solved For Accuracy And Reliability CU 301 is specially designed for the Grundfos SQE 3" submersible pump to provide a constant pressure water package solution. E. The system is 220v. I have a cu301 system at my cottage. Good quality water pump parts, made of engineering plastic material, strong and durable. Find the help and support you need with your pumps and services, no matter what you are looking for. It's also possible you need to check your Windows. Answer: Circuit breakers and fuses trip for numerous reasons: undervoltage, incorrectly designed circuit breaker or fuses, too low a setting for the motor-protective circuit breaker, asymmetric three-phase current, a short circuit on the motor, incorrect wiring or faulty electrical connections, a worn or blocked pump, a defective capacitor for. Variants. 89UPZC-1 GRUNDFOS INSTRUCTIONS Troubleshooting tips for the UPZC-1 Symptom: The zone is calling for heat but the circulator is not turning ON. Write a review. As valveman pointed out, you could disconnect the CU301 and replace it with a pressure switch if you want. 28 January 2014 09:51:31. Step 1: Go to Grundfos Product Center. 2022 ECM: 1347087 CU 301 GRUNDFOS INSTRUCTIONS JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals. Io. 12 a. . not worth the money. If you have a Grundfos Cu301 pump and it won’t turn on, the first thing to do is to check your power source. 00. Canada OY GRUNDFOS Pumput AB GRUNDFOS GMBH GRUNDFOS Hellas A. Go with the CU301. I also think the 3 wire Grundfos motors are good. Brand: Grundfos. The last I heard those CU301/SQE type systems were in "generation nine". • that the control indicator LED is flashing. Check the water supply suction pipe for damage or obstructions, if the pump does not start. My guess is that the impeller chambers may have filled up (partially) with a fine sand. Main use is to supply 10gpm to my heat pump for heat and a/c plus normal household water use and some garden irrigation. The pump will then act like a typical submersible pump, just with the added feature of dry run protection. GRUNDFOS CU301 96436753 V07 CONTROL UNIT for SQE pumps + MBS1900 PRESSURE SENSOR (#154612007285) See all feedback. If these measures do not have the desired effect, please call your specialist technician. I have been given 2 options for the well pump: Grundfos 1. W e provide Grundfos products, installation, service and repairs in South Florida and the Caribbean. However, I feel that it has saved energy and maintenance efforts on my part. L max. grundfos cu301 red light. Grundfos Americas Brookshire, TX 77423. A pressure transducer, or pressure sensor, is fitted in a heating and cooling or ventilation system. Ltd. If you have a Grundfos Cu301 pump and it won’t turn on, the first thing to do is to check your power source. Grundfos CU301 Controllers with Pressure Transducers (Sensor) are factory pre-set to allow a Max pressure setting of 70 PSI by. About this product. 4. New Grundfos hydraulics reduce clogging problems and help build confidence into wastewater handling New hydraulics ensure operational reliability – a necessity for raw wastewater transport SMART Digital Dosing Keeps Safe Foods Consistent You should return the CU301 for a refund if possible. No extra cables are required between the CU 301 and the pump. 0. They use the same wires the power goes down to the motor to send a radio signal back up to the controller. ; Page 12 Radio Radio. Read more. It provides constant-pressure monitoring with the help of a single signal of the sensor adjusting the level of pressure in the system and indicating an alert and controlling the work process. Canada. 00. That is a very common problem with the SQE/CU301 type system. Grundfos Pumps Corporation 17100 W. Ground water intake. Your question: Your name:Products manufactured by GRUNDFOS PUMP S CORPORATION (Grundfos) are warranted to the original user only to be free of defects in material and workmanship for a period of 24 months from date of installation, but not more than 30 months from date of manu-facture. item 3 GRUNDFOS CU301 96436753 V07 CONTROL UNIT for SQE pumps + MBS1900 PRESSURE SENSOR GRUNDFOS CU301 96436753 V07 CONTROL UNIT for SQE pumps + MBS1900 PRESSURE SENSOR. . of manufacture. Step 2: Download Grundfos GO. USA. 1 Grundfos instructions. Authentic OEM part 96438895 by Grundfoss. Jul 24, 2011, 08:19 AM. SQE, model B motor & B pump. Read our customers' stories about how they benefit from the Grundfos approach to intelligence, water and energy, or search Grundfos research & insights for more learning materials, articles, white papers, videos and much. 1 Menu OPERATION 5. E. Ingen resultater tilgængelige for det aktuelle valg. E. Motorola Moto: Hold down the Power key for 10-20 seconds. Controls & Digital Groundwater Management. 10-15 yrs ago when these came out, the CU301 had a high failure rate (< every 2 yrs ). English (USA) Products & services. 99. Recíbelo el martes, 3 de enero. But you would be able to completely remove the pressure transducer and CU301 box. iPhone 7: Press and hold the Sleep/Wake button and the volume down button. Control panel Grundfos CU 301 was designed specifically for working with SQE submersible pumps. or Best Offer. ) are connected. • Status of the indicator lights on the control panel. Grundfos CU 301 Constant Pressure Kit; For use with Grundfos SQE Series 3" Submersible Well Pumps; CU 301 Intelligent Control Unit; Provides full control the SQE submersible pump; Constant Pressure Control; Controlled by signal from pressure sensor (Stainless Steel Sensor Included) Pressure Setpoint Adjustment (40-100 PSI)The SQE pump is fitted with a single-phase Grundfos MSE 3 or MSE 3-NE motor. Ice cube tray trips the pump on. Grundfos Cu301 Won’T Turn On If you have a Grundfos Cu301 pump and it won’t turn on, the first thing to do is to check your power source. Make sure the voltage is at the correct level for your pump, as incorrect voltage can cause malfunctions. No extra cables are required between the CU 301 and the pump. 5700393737235. 96438897. CU 301 is specially designed for the Grundfos SQE 3" submersible pump to provide a constant pressure water package solution. The CU 301 is an intelligent control unit which capable of monitoring and displaying the system’s performance continuously whilst also providing a variety of protection features that guarantee a. CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. I have a cu301 system at my cottage. I would then try using a contactor and an electrical float switch and the contactor turns on and off the power to the Grunfos CU301. At the same time, it could also monitor and display the system’s performance continuously whilst. CU 301 MkII constant pressure. In other words, it has everything you need. You will be ok letting it cycle for a few days until you get a CSV1A to finish the job and stop the cycling. (If the bladder is leaking, water will probably come out of the air valve of the tank. 5hp, . 7. Select ‘Catalogue’. Being responsible is our foundation Thinking ahead makes it possible Innovation is the essence GRUNDFOS INSTRUCTIONS CU 301 CZ Montážní a provozní návod TM V / GCZ CZ. I finally swapped out my Grundfos CU301 well controller for a CSV1Z Cycle Stop Valve. Quick view Add to Cart. 5 HP 10GPM (10SQE 15-330) and the CU301 Controller - $3,800 installed Goulds VFD 2. 99. • Motor type 0. Dealing with a Weil McClain Boiler Ignition Fault? Let us help you resolve the issue quickly and safely. Where to buy. However you would control the pump with the breaker for testing. CU 301 is specially designed for the Grundfos SQE 3" submersible pump to provide a constant pressure water package solution. CU 301 communicates with the pump via power line communication. Also, I feel that our Grundfos 15SQE10-250 well pump now has an extended life expectancy with the CSV as opposed to with the Grundfos CU301 VFD. You can easily change the system pressure by pressing the pressure buttons on the controler. What I would do is wire everything according to the diagram, turn power on and test with your multimeter The two leads Coming from the panel which is your power coming in, test for 240v and also test one hot lead to ground to test for 120 and test the other hot lead to. 2022 ECM: 1347087 CU 301 GRUNDFOS INSTRUCTIONSIt is Grundfos CU301 control unit. Ltd Mail: P. Originally the well was rated at 40 gpm and pump would provide 18 -20 gpm continuous. The control unit has been developed for the SQE submersible pumps. CU301 Controller is sold separately. 2 Warning and alarm messages from the 4. CU 200. Get it Oct 5 - 18. My question now is what size breaker to use. CU301 does the rest. Use the Grundfos FAQ to get answers to your questions about pumps and pumping systems. GRUNDFOS INSTRUCTIONS. Grundfos GO Remote. Product A-Z. This is a variable speed pump and the sensor that is faulty is in the motor. Save Seller. Go with the CU301. I would disconnect the CU301 controller, making the pump and SQ instead of an SQE. GRUNDFOS Pumps CorporationAdd to Cart. EN/. 7Amps. 50Hz. We apologize for any inconvenience. Quick view Choose Options. New hydraulics ensure operational reliability – a necessity for raw wastewater transport. The Grundfos SQE is converted to an SQ, when the CU301 controller is removed. Find the help and support you need with your pumps and services, no matter what you are looking for. CU 301 is specially designed for the Grundfos SQE 3" submersible pump to provide a constant pressure water package solution. • Voltage 100v - 240v. 35 $ 1,445. ; Page 3 Radio. 00), he now won't return my calls or even tell me the model of the pump he installed so I can get someone else to finish it. Both motor types can communicate with the Grundfos CU 300 and CU 301 control units, which can be operated with the Grundfos R100 remote control. Water goes in and out of it all of the time against the air-filled bladder. GRUNDFOS Pumps Pty. I have the same system. If you are a registered Extranet user, please log-in to the Extranet to place an order here . The company installing the new pump planned on completing the installation with the Grundfos CU-301 controller and 2 gallon pressure tank. The internal bladder air pressure should be set at the cut-in pressure of the pump switch. Any advice would be appreciated. CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. 1 m. What is the CU300 and CU301? The CU300 and CU301 are both control boxes to monitor and adjust the features on the SQE. You commented that the variable speed pump could be hooked straight to the power supply. It will consume space for the storage vessel and get overly complicated while not really addressing the problem. Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. com tel. 3-Inch SQE Submersible Well Pumps CU301 ONLY: Transducer 0-120 psi 1/2" npt 10' cord SOLD SEPARATELY: Constant pressure with SmartFloTM Intelligent Control BoxCU 301 is specially designed for the Grundfos SQE 3" submersible puGrundfos GO Remote offers intuitive, handheld assistance and access to Grundfos’s online tools for dimensioning, alerts, reporting and more. Choose your pump to see all the information. I have found that if I turn the power off, after a few hours, the pressure is back. You can disconnect the CU301 and just wire the two hot wires directly to a 240V breaker to test the pump. All information is copyright Grundfos. Grundfos olarak bu beyannameye konu olan R100 ürünlerinin, AB Üyesi Ülkelerin kanunlarını birbirine yaklaştırma üzerine Konsey Direktifleriyle uyumlu olduğunun yalnızca bizim sorumluluğumuz altında olduğunu beyan ederiz: – EMC Diretifi (2004/108/EC). • Nameplate data of the CUE. The Grundfos SQE pump model numbers are very descriptive!! The flow and pressure for each pump is indicated by the model number. Provoz čerpadla je nastaven na minimální otáčky min -1 bez ohledu na požadovanou hodnotu. (Grundfos) are warranted to the original user only to be free of defects in material and workmanship for a period of 24 months from date of installation, but not more than 30 months from date of manufacture. Ratings and Reviews. Get water pump parts water pump maintenance accessories with free return and fast delivery. 09. The SQE SmartFlo range works with SQE pumps available in 4 sizes: . When a valve is closed, and the water reverses direction back toward the pump, the pressure tank absorbs the shock of the water column in the piping. Grundvandsindtag. Grundfos will not be liable for any costs of removal, installation, transportation, or any other22 Fault Possible cause Remedy 1 No light in the front cover a The ribbon cable con nection is loose or de fective Is the control indicator LED flashing If not the CU 301 is defective Check that the ribbon cable connection is secure 2 The pump does not start The green indicator light in the On Off but ton is on No alarm is indicated a The CU. The CU 301 is a control and communication unit developed for SQE well pumps used in constant-pressure applications. The only good thing about the SQE is that it will run off a standard pressure switch in place of the CU301. Grundfos 91121987 - BMQE CU301 Constant Pressure Box- The BMQE system is a complete constant pressure boosting system. Has anyone seen something like that before? In the past, simply turning off the pump and waiting 30 seconds to turn it back, would allow for the system to go back to normal. Make sure the voltage is at the correct level for your pump, as incorrect voltage can cause malfunctions. Gain practical insight into how to interpret troubleshooting issues, learn about specific warnings and alarms and get the knowledge required to help diagnose issues. B. V. MPN. Find out how to get reduced energy consumption, increased comfort and unsurpassed operational reliability for your application. GRUNDFOS CU301 CONSTANT PRESSURE CONTROL BOX w/ TRANSDUCER KIT SQE CU 301 Ver. CU 351 and IO. Sections 5-11 give important information about operating the product, as well as information on service, troubleshooting and disposal of the product. CU 301. Quick view Add to Cart. You should google "Grundfos cu301 Operation Manual" to find answers to your questions. Last one. Three hours later the voltage alarm came. com tel. Run a supply of cold water through the pump, if the unit does not start due to overheating. The intelligent control box offers a wide flexibility for various system set-up or configurations. Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. Brand. The old CU301 was set to 80 psi. The CU301 User Interface is the easy to use command and control computer for operating the pump in constant pressure. 40. Horsepower: 1/3 hp. Suppose I turn my SQE into an SQ (it's already that - he was out here today and replaced everything [cu301, sensor, pressure tank] but the pump - still cycles 60-80psi every 10 seconds, diagnosis: must be the 'chip' on the pump). If you do not immediately receive an email, please check your spam, bulk or junk mail folders. CU 301. C $235. Grundfos Shaft Seal Kit for CR I N 10 15 20 HQQE 96511844 (1) Total Ratings 1. Kullanılan standartlar: EN 61000-6-2: 2005 ve EN 61000-6-3: 2007. The house was built new in '07 and we needed a high. Product Questions . Review. That means they have been "recalled" at least 9 times since 1999 when they first came on the market. So as long as the pump itself will run, you can replace the. A blue or grey circle with a white graphical symbol indicates that an action must be taken. The intelligent control box offers a wide flexibility for various system set-up or configurations. € 1 814,69. Compared to conventional circulators, they cut energy consumption by up to 80 %, while delivering noise-free performance. Make sure the voltage is at the correct level for your pump, as incorrect voltage can cause malfunctions. New Grundfos hydraulics reduce clogging problems and help build confidence into wastewater handling New hydraulics ensure operational reliability – a necessity for raw wastewater transport Smart Industrial Aircraft Wash System Recovers 90% Water The Grundfos CU301 is likely not receiving power and needs to be checked for power supply and electrical connections. 5gl diaphragm tank. Quantity. Keep the screw open until the sound stops. 1 star 2 stars 3 stars 4 stars 5 stars. You would only need to replace the pressure transducer with a standard 50/70 pressure switch, and wire the pump directly to the pressure switch without needing the CU301. $919. Drip, Micro Spray & Soaker Hose Irrigation. Issues started one night where the CU301 indicated overload, I believe this happens in pumps built in electronics/VFD when the pump pulls more then 4. Řídící jednotka CU 301 je určena pro řízení ponorných čerpadel SQE v aplikacích udržování konstantního tlaku. He bought his own Caribbean island when he was 24, was knighted in 1999 and is now said to be worth $4. You can easily change the system pressure by pressing the pressure buttons on the controler. 96438650 0103 CU301 5 sec. Off-grid. CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. . I have been given 2 options for the well pump: Grundfos 1. Read our customers' stories about how they benefit from the Grundfos approach to intelligence, water and energy, or search Grundfos research & insights for more learning materials, articles, white papers, videos and much. Pump Machinery and Parts. Once the water dribbles out, all the air in your. The old CU301 was set to 80 psi. Keep holding the Side button until you see an Apple logo on the screen. Domestic ground water intake. WX 101 Amtrol 2 galones Well-X-Trol sistema de pozo de agua en línea DEPÓSITO DE PRESIÓN. No extra cables are required between the CU 301 and the. Grundfos will not be liable for any costs of removal, installation, transportation, or any other 22 Fault Possible cause Remedy 1 No light in the front cover a The ribbon cable con nection is loose or de fective Is the control indicator LED flashing If not the CU 301 is defective Check that the ribbon cable connection is secure 2 The pump does not start The green indicator light in the On Off but ton is on No alarm is indicated a The CU. I would disconnect the CU301 controller, making the pump and SQ instead of an SQE. The only good thing about the SQE is that it will run off a standard pressure switch in place of the CU301. Each plug terminal has a screw, so loosen the screw so you can insert the wire neatly into the hole. No results are available for the current selection. Yes we have replaced thousands of CU301 controllers with a Cycle Stop Valve and a simple pressure switch. If the unit is 15 years old it didn’t really owe you any favours IMO. CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. Kontrollbox CU301, tryckbehållare GT-H (8 liter), trycksensor 0. The reason they were put on the market to start with, was to compete with the constant pressure control of a CSV, introduced in 1993, without shooting the pump. GRUNDFOS do Brasil Ltda. Have the electrical supply line inspected by. How to wire a Groundfos CU301 well pump controller and well pump. GRUNDFOS Pumps CorporationThe MI 301, Grundfos GO Remote (IR Trans, Universal-Blue Tooth) , 98046408, is designed to provide you with convenient access to pump performance data, control settings and product information, all at the push of a button! This innovative control uses radio and infra-red technology to communicate with any Grundfos E-pump, allowing users to. The lower the pressure the higher the flow from a given pump. It will consume space for the storage vessel and get overly complicated while not really addressing the problem. No. Grundfos cu301 constant pressure control box w transducer kit sqe cu 301 ver 7 UNIT IS DESIGNED TO RUN ANY GRUNDFOS SQE SERIES PUMP ATThis item: Pressure Sensor Danfoss 0-6 Bar ( 179. This means that theModel #: 96436754-CU301 (230v) For SmartFlo electronic constant pressure submersible pump. Their compact diameter enables these submersible borehole water pumps to be used in 3inch boreholes, or 4inch that. To contact a Grundfos distributor to purchase product or learn more about pricing and availability, please fill out the required fields below. I looked at the grundfos website, and their literature is pretty poor, but this looked pretty odd to me. If so what would the pressure be without the controller, wouldn't it. Grundfos will not be liable for any costs of removal, installation, transportation, or any other charges which may arise in connection with a warranty claim. 5 104. Obr. Location. HelpCU 301, pressure sensor kit. 16A VAC Tank SQE CU301 CU 301 CU 301 99 CU 301 GRUNDFOS INSTRUCTIONS 96438650 0306 Repl. Jun 10, 2008. We provide free shipping & factory warranty on everything we sell. Write a review. Terry, I recently saw the article you wrote on this controller. Otherwise you will see a drop in pressure before the pump gets. For use only with certain. CU 301. Three hours later the voltage alarm came on again and it stopped working. I think the latest version number 7 of the CU301 will cycle like this 1000 times before it shows a fault that says, “lost connection”. Grundfos will not be liableAbout us Careers Sustainability News and media Doing business with us Our Company Grundfos Store Grundfos United States. The CU300 and CU301 are both control boxes to monitor and adjust the features on the SQE. = L pump + (n – 1) x 3 L max. • Size: 7. My problem: We can't set the psi on the new CU301 above 70 psi. #1. CU 301 communicates with the pump via power line communication. Municipal wells. I can lock and unlock the unit by pressing the up and down arrows at the same. Quite simply, I have 5000 gallons of water sitting in storage tanks, supplied by a nicely functioning well pump. In water distribution, keeping the water pressure constant is important for the comfort level of the end user. Grundfos Americas Brookshire, TX 77423. Grundfos will not be liable for any costs of removal, installation, transportation, or any other charges which may arise in connection with a warranty claim. The CU301 Controller and Transducer allow the Grundfos SQE Submersible Pumps to operate as "constant pressure" pumps. CU 301 are designed for communication, monitoring and control of SQE submersible pumps in constant pressure applications. New Grundfos hydraulics reduce clogging problems and help build confidence into wastewater handling New hydraulics ensure operational reliability – a necessity for raw wastewater transport Smart Industrial Aircraft Wash System Recovers 90% WaterDry-running protection for water pumps is one of the most important monitoring functions, as bearings and shaft seal may be damaged if the booster pumps run dry. . TURN IT OFF manually so you don't burn up the pump motor. Download the AliExpress app. It seems to me a "20 gallon" pressure tank might be a total size. 50Hz. System in located in small crawlspace under the cottage. Only for Hydrojet: Check that the pressure switch is working. Variants. Select pos. $1275. $1275. In order to control pressure, it must be measured. If you took that CU301 out of the circuit forever, to fill a tank, you would use a float switch, and probably also that pump protection device. Per the CU301 Manual: "Raintight or wet location hubs that comply with the requirements in the standard for Fittings for Conduit and Outlet Boxes, UL514B, are to be used. Newbie; Posts: 15; Grundfos CU301 retired « on: August 26, 2015, 10:01:17 PM » I installed a new CSV1A and pressure switch today and retired the still (surprisingly) working CU301 V2 from 2003. New Grundfos hydraulics reduce clogging problems and help build confidence into wastewater handling New hydraulics ensure operational reliability – a necessity for raw wastewater transport Smart Industrial Aircraft Wash System Recovers 90% Water Dry-running protection for water pumps is one of the most important monitoring functions, as bearings and shaft seal may be damaged if the booster pumps run dry. 03CZ Being responsible is our foundation Thinking ahead makes itpossible. De Ruiter Electric Motor Company offers Grundfos products, service and repair in Miami, Fort Lauderdale, Palm Beach and the Caribbean. 3 de 5 estrellas. CU 301 are designed for communication, monitoring and control of SQE submersible pumps in constant pressure applications. When I turn the water system on, I will have water for 1 - 3 hours then there is not pressure. I would use a 10S15-21 Grundfos. CU 301 er designet til kommunikation, overvågning og kontrol af SQE dykkede pumper i applikationer med konstant tryk. The real problem is needing a variable flow rate from a given pump. Export as. The pressure drops until it reaches 20 PSI to 32 PSI (1. It is further evidence that Grundfos are committed to delivering exceptional quality and can guarantee that their pumps provide lasting solutions. If any of them are loose or disconnected, your circulator pump won't work. 00. Grundfos Cu301 Won’T Turn On . Measure how long it takes to fill a 5 gallon bucket while that hydrant is running. We are experiencing intermittent issues on the site and are working to resolve this. Turn Key Pressure boosting system for boosting of water in apartments, hotels etc. Control Grundfos E-products remotely, ensure easy and reliable installing, commissioning and maintenance, and save time on reporting with the intuitive Grundfos GO Remote app. CU 301 are designed for communication, monitoring and control of SQE submersible pumps in constant pressure applications. 00 shipping. Check. You can also search Grundfos research and insights for more learning materials, articles, white papers, videos and. 1 Service. Contacts;. GRUNDFOS do Brasil Ltda. Alarm indication of pump operation by diodes on the front. I’ve put a couple CSVs in and a lot of various VFDs including plenty of CU301/SQE combos. FR: Déclaration de conformité UE Nous, Grundfos, déclarons sous notre seule responsabilité, que le produit CU 301. CU 301 are designed for communication, monitoring and control of SQE submersible pumps in constant pressure applications. The Grundfos CU301 is likely not receiving power and needs to be checked for power supply and electrical connections. Grundfos. With new 30-50 pressure switch. I need to select or configure a product. No results are available for the current selection. Enter the product for which you want to troubleshoot in the search bar at the top. 1. We have gathered frequently asked questions and their answers in one place. New Grundfos hydraulics reduce clogging problems and help build confidence into wastewater handling. I just can't get it out of there to irrigate our property. If so, the pump is supposed to start. Possibility of adjusting the pressure. Learn more. I have had the Grundfos CU301 and 10SQE05-160 (10gpm 1/2hp 160' of head) in a 24" 40' bored well with 12gpm flow for 5 years with no issues until a month ago. It was installed when we built our house. CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. Grundfos 985204 Sealing Set (2) Total Ratings 2. Intelligent Control Box. 15 Parque Industrial Stiva AeropuertoGRUNDFOS CU301 Control Unit Version 2 100-240 VAC 50/60HZ 12A 96436754. 4. CU 301 communicates with the pump via power line communication.