6 questions Intermediate

ECADEMY test

The Grundfos Distributed Pumping Course

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

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Question 2 of 6 Intermediate

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

Question 3 of 6 Intermediate

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

Question 4 of 6 Intermediate

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

Question 5 of 6 Intermediate

5 Pump energy savings in a distributed pumping system are around:

Question 6 of 6 Intermediate

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Correct
01.
Q: How does distributed pumping ensure minimum flow over each chiller?
A: By having a differential pressure sensor installed across each chiller
Correct
02.
Q: How much flow is required to achieve almost 80 % of the capacity?
A: 50%
Correct
03.
Q: With a single dedicated pump for each terminal unit, which control mode is used?
A: Constant temperature
Correct
04.
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
05.
Q: Pump energy savings in a distributed pumping system are around:
A: 54%
Correct
06.
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