Question 1 of 6
Intermediate

What is the key design element in Grundfos Distributed Pumping?

Question 2 of 6
Intermediate

Why is coil flow always correct in a distributed pumping system?

Question 3 of 6
Intermediate

How do variable-speed pumps affect the manual balancing process in HVAC systems?

Question 4 of 6
Intermediate

With a single dedicated pump for each terminal unit, which control mode is used?

Question 5 of 6
Intermediate

How much flow is required to achieve almost 80 % of the capacity?

Question 6 of 6
Intermediate

Why is there in most cases no bypass flow with a distributed pumping system?

Question 6 of 6
Intermediate

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1: What is the key design element in Grundfos Distributed Pumping?
A new kind of intelligent valve
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1: What is the key design element in Grundfos Distributed Pumping?
The use of intelligent pumps instead of valves
1: What is the key design element in Grundfos Distributed Pumping?
Making bypass lines obsolete
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2: Why is coil flow always correct in a distributed pumping system?
By using large variable speed-controlled primary pumps
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2: Why is coil flow always correct in a distributed pumping system?
Because Magna 3 pump speed is modulated based on terminal unit load
2: Why is coil flow always correct in a distributed pumping system?
Because the system runs with maximum flow at maximum load
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3: How do variable-speed pumps affect the manual balancing process in HVAC systems?
Variable-speed pumps make the manual balancing process obsolete by automatically balancing the system according to actual demands.
3: How do variable-speed pumps affect the manual balancing process in HVAC systems?
Variable-speed pumps require manual balancing to be performed more frequently to maintain system efficiency.
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3: How do variable-speed pumps affect the manual balancing process in HVAC systems?
Variable-speed pumps complicate the manual balancing process, making it more tedious and time-consuming.
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4: With a single dedicated pump for each terminal unit, which control mode is used?
Proportional pressure
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4: With a single dedicated pump for each terminal unit, which control mode is used?
Proportional pressure or constant temperature – doesn’t matter
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4: With a single dedicated pump for each terminal unit, which control mode is used?
Constant temperature
5: How much flow is required to achieve almost 80 % of the capacity?
50%
5: How much flow is required to achieve almost 80 % of the capacity?
30%
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5: How much flow is required to achieve almost 80 % of the capacity?
80%
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6: Why is there in most cases no bypass flow with a distributed pumping system?
Because primary pumps try to match primary flow and secondary flow
6: Why is there in most cases no bypass flow with a distributed pumping system?
The bypass valve is always closed
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6: Why is there in most cases no bypass flow with a distributed pumping system?
The system is never over-pumped
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