Why must low-pressure non-return valves be installed for each cooling loop with AHU’s?
What is the benefit of aligning primary side flow with secondary side flow?
Why is coil flow always correct in a distributed pumping system?
How does distributed pumping ensure minimum flow over each chiller?
Why is there in most cases no bypass flow with a distributed pumping system?
With a Distributed Pumping system, does commissioning and balancing
Test results
Congratulations. You have passed the test and completed the 69 - The Grundfos Distributed Pumping Course
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Q: Why must low-pressure non-return valves be installed for each cooling loop with AHU’s?
A: You don’t need non-return valves – intelligent pumps make all valves redundanteed
Q: Why must low-pressure non-return valves be installed for each cooling loop with AHU’s?
A: To avoid backflow in case the AHU unit is out of operation
Q: Why must low-pressure non-return valves be installed for each cooling loop with AHU’s?
A: You only need non-return valves for proportional pressure installations
Q: What is the benefit of aligning primary side flow with secondary side flow?
A: To ensure distributed pumps never miss water on the suction side
Q: What is the benefit of aligning primary side flow with secondary side flow?
A: To avoid increasing pressure in the bypass pipe
Q: What is the benefit of aligning primary side flow with secondary side flow?
A: To avoid or minimise the ‘low’ Delta T syndrome
Q: Why is coil flow always correct in a distributed pumping system?
A: By using large variable speed-controlled primary pumps
Q: Why is coil flow always correct in a distributed pumping system?
A: Because Magna 3 pump speed is modulated based on terminal unit load
Q: Why is coil flow always correct in a distributed pumping system?
A: Because the system runs with maximum flow at maximum load
Q: How does distributed pumping ensure minimum flow over each chiller?
A: By having a differential pressure sensor installed across each chiller
Q: How does distributed pumping ensure minimum flow over each chiller?
A: By running with maximum flow at maximum load
Q: How does distributed pumping ensure minimum flow over each chiller?
A: By ensuring the primary pump is larger than in a conventional system
Q: Why is there in most cases no bypass flow with a distributed pumping system?
A: Because primary pumps try to match primary flow and secondary flow
Q: Why is there in most cases no bypass flow with a distributed pumping system?
A: The bypass valve is always closed
Q: Why is there in most cases no bypass flow with a distributed pumping system?
A: The system is never over-pumped
Q: With a Distributed Pumping system, does commissioning and balancing
A: Take longer
Q: With a Distributed Pumping system, does commissioning and balancing
A: Become obsolete
Q: With a Distributed Pumping system, does commissioning and balancing
A: Is done quickly and easily