Question 1 of 6
Intermediate

What is the benefit of aligning primary side flow with secondary side flow?

Question 2 of 6
Intermediate

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

Question 3 of 6
Intermediate

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

Question 4 of 6
Intermediate

How does the MPC controller protect chillers from freezing?

Question 5 of 6
Intermediate

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

Question 6 of 6
Intermediate

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

Question 6 of 6
Intermediate

Happy with your answers?

Submit your current answers and get the final test result.

Test results

Congratulations. You have passed the test and completed the 69 - The Grundfos Distributed Pumping Course
Sorry. You did not pass the 69 - The Grundfos Distributed Pumping Course test this time
Achieved badges:
How would you rate this course?
1: What is the benefit of aligning primary side flow with secondary side flow?
To ensure distributed pumps never miss water on the suction side
You can find the answer here >
1: What is the benefit of aligning primary side flow with secondary side flow?
To avoid increasing pressure in the bypass pipe
You can find the answer here >
1: What is the benefit of aligning primary side flow with secondary side flow?
To avoid or minimise the ‘low’ Delta T syndrome
2: How much flow is required to achieve almost 80 % of the capacity?
50%
2: How much flow is required to achieve almost 80 % of the capacity?
30%
You can find the answer here >
2: How much flow is required to achieve almost 80 % of the capacity?
80%
You can find the answer here >
3: With a single dedicated pump for each terminal unit, which control mode is used?
Proportional pressure
You can find the answer here >
3: With a single dedicated pump for each terminal unit, which control mode is used?
Proportional pressure or constant temperature – doesn’t matter
You can find the answer here >
3: With a single dedicated pump for each terminal unit, which control mode is used?
Constant temperature
4: How does the MPC controller protect chillers from freezing?
By fulfilling the chiller setpoint signal
You can find the answer here >
4: How does the MPC controller protect chillers from freezing?
By ensuring minimum flow over the active chille
4: How does the MPC controller protect chillers from freezing?
By chiller temperature signal
You can find the answer here >
5: Why is coil flow always correct in a distributed pumping system?
By using large variable speed-controlled primary pumps
You can find the answer here >
5: Why is coil flow always correct in a distributed pumping system?
Because Magna 3 pump speed is modulated based on terminal unit load
5: Why is coil flow always correct in a distributed pumping system?
Because the system runs with maximum flow at maximum load
You can find the answer here >
6: 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.
6: 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.
You can find the answer here >
6: 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.
You can find the answer here >