CIM/CIU communication interfaces enable control of pumps and pump systems
Saving you time and money while delivering peace of mind, Grundfos CIM/CIU communication interfaces are the ideal solution for control of pumps and pump systems. The Communication Interface Module (CIM) and the Communication Interface Unit (CIU) enable data communication via open and interoperable networks.
This Grundfos fieldbus concept is easy to install and commission, and the CIM/CIU communication interfaces support a wide range of Grundfos products. All modules are based on standard functional profiles for easy integration into the network and easy understanding of data points, improving your ability to control pumps and pump systems.
Whatever your system challenges, there are several ways intelligent controls can help. In our controls application guide, you can learn everything there is to know about how to install and commission our solutions to fully optimise your HVAC system. Find out how to:
- Reduce energy consumption
- Increase system performance
- Reduce manual monitoring
Are flanges included within the scope of delivery when ordering circulator pumps or do these need to be ordered separately?
Flanges and seals need to be ordered separately. The type and size of the flanges and seals must be specified when ordering.
Can the pump be operated using a frequency converter?
Grundfos offers numerous speed-controlled pumps that are referred to as ‘E-pumps’ and which come equipped with Grundfos MGE motors with an integrated frequency converter. The manufacturing costs and material inputs are lower compared to pump solutions with external frequency converters. In addition, technical issues that may arise in connection with external frequency converters are avoided.
Finally, MGE motors have numerous additional features and advantages. In the event ...
Can the SP pumps also be operated in a horizontal position?
SP submersible pumps with a Grundfos or other submersible motor can be operated in any position from horizontal to vertical. The motor is arranged below the pump. A cooling jacket is generally required for these installation positions.
Do I have to follow the instructions for Grundfos pumps?
Yes, absolutely. The installation and operating instructions contain basic instructions which must be followed in connection with the installation, operation, and maintenance of the system. Hence, they must be read by the installer and the relevant personnel/owner prior to installation and commissioning. In addition, they must be available to personnel on site at all times.
Does a distributed pumping solution require hydraulic balancing?
No. Because we use small circulators as coil pumps to supply chilled water to each terminal unit (ie. Air handling unit), your entire building will be perfectly balanced at any load.
This also simplifies the design phase, as it is no longer necessary to determine the critical pressure point / index loop when doing the HVAC design. With distributed pumping, your whole system becomes decoupled and each pump is sized to deliver just the right flow.