The control unit CU is for use only with Grundfos SQE pumps incorporating electronic power factor correction (PFC). Description The system maintains a constant pressure within the maximum pump performance in spite of a varying water consumption. The CU is designed for wall mounting only. Fig. 1 Example of a system with constant-. You can select manual or automatic restarting in the Grundfos GO display "Automatic restarting". Manual restarting is carried out by means of the On/ Off button on CU Digital input DIG IN, termin and 13 In fig. 4, the digital input is used to start and stop the pump. You can select the function of the digital input by. describe Grundfos CU Sections give the information necessary to be able to install and start up the products in a safe way. Sections give important information about operating the product, as well as information on service, troubleshooting and disposal of the product. CONTENTS Page or any other charges whic 1. LIMITED WARRANTY.
Have a 5 year old Grundfos cu system with 2 gal pressure tank. Last winter the controler changed from 70psi to 40psi and we could not change the pressure. Well repair came and said system was fine, but system had been locked with a remote control. He put controler back to 70psi and made sure pressure in tank was 70% of system pressure. CU SQFlex control unit The CU is a combined status and control unit for the SQFlex pump system. Moreover, the CU enables connection of a level switch placed in a water reservoir or tank. IO 50 SQFlex switch box The IO 50 is an on/off switch box designed for opening and closing the system power supply. IO SQFlex switch box. Buy the Grundfos Pumps Backordered at Power Equipment Direct. Also, read the latest reviews for the Grundfos CU MkII Constant Pressure Kit For SQE-Series Deep Well Submersible Pumps.
At the Grundfos Product Center, you can quickly and easily find pump installation guides, pump manuals, and all the technical data you need to keep your system working its best. Step 1: Go to Grundfos Product Center. Once you enter Grundfos Product Center, you will see a menu with four coloured categories at the top. Select ‘Catalogue’. Follow the step by step explanation in this video to use all of the indicator lights of the CU control for troubleshooting of the Grundfos SQE constant. CU is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. CU communicates with the pump via power line communication. No extra cables are required between the CU and the pump.
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