6 questions Intermediate

ECADEMY test

69 - The Grundfos Distributed Pumping Course

This course test contains 6 questions and can be retaken at any time.

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Question 1 of 6 Intermediate

Pump energy savings in a distributed pumping system are around:

Question 2 of 6 Intermediate

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

Question 4 of 6 Intermediate

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

Question 6 of 6 Intermediate

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Correct
Q: Pump energy savings in a distributed pumping system are around:
A: 54%
Correct
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
Correct
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
Correct
Q: With a single dedicated pump for each terminal unit, which control mode is used?
A: Constant temperature
Correct
Q: How does distributed pumping ensure minimum flow over each chiller?
A: By having a differential pressure sensor installed across each chiller
Correct
Q: What is the benefit of aligning primary side flow with secondary side flow?
A: To avoid or minimise the ‘low’ Delta T syndrome