How does the MPC controller protect chillers from freezing?
How does distributed pumping ensure minimum flow over each chiller?
With a Distributed Pumping system, does commissioning and balancing
With a single dedicated pump for each terminal unit, which control mode is used?
What is the benefit of aligning primary side flow with secondary side flow?
Test results
Congratulations. You have passed the test and completed the 69 - The Grundfos Distributed Pumping Course
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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: How does the MPC controller protect chillers from freezing?
A: By fulfilling the chiller setpoint signal
Q: How does the MPC controller protect chillers from freezing?
A: By ensuring minimum flow over the active chille
Q: How does the MPC controller protect chillers from freezing?
A: By chiller temperature signal
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: With a Distributed Pumping system, does commissioning and balancing
A: Take longer
Q: With a Distributed Pumping system, does commissioning and balancing
A: Become obsolete
Q: With a Distributed Pumping system, does commissioning and balancing
A: Is done quickly and easily
Q: With a single dedicated pump for each terminal unit, which control mode is used?
A: Proportional pressure
Q: With a single dedicated pump for each terminal unit, which control mode is used?
A: Proportional pressure or constant temperature – doesn’t matter
Q: With a single dedicated pump for each terminal unit, which control mode is used?
A: Constant temperature
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