What is the benefit of aligning primary side flow with secondary side flow?
How does distributed pumping ensure minimum flow over each chiller?
What is the key design element in Grundfos Distributed Pumping?
Why is there in most cases no bypass flow with a distributed pumping system?
Why must low-pressure non-return valves be installed for each cooling loop with AHU’s?
Test results
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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: 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: How much flow is required to achieve almost 80 % of the capacity?
A: 50%
Q: How much flow is required to achieve almost 80 % of the capacity?
A: 30%
Q: How much flow is required to achieve almost 80 % of the capacity?
A: 80%
Q: What is the key design element in Grundfos Distributed Pumping?
A: A new kind of intelligent valve
Q: What is the key design element in Grundfos Distributed Pumping?
A: The use of intelligent pumps instead of valves
Q: What is the key design element in Grundfos Distributed Pumping?
A: Making bypass lines obsolete
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: 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