Question 1 of 6
Intermediate

Why is correct sizing of the submersible pump important?

Question 2 of 6
Intermediate

Why must the pump unit be installed below the dynamic water table?

Question 3 of 6
Intermediate

What is a key installer benefit of the voltage protection in SQ/SQE?

Question 4 of 6
Intermediate

How long did it take to replace the pump with a Grundfos SQ?

Question 5 of 6
Intermediate

Why is it important to protect the pump from over- and under voltage?

Question 6 of 6
Intermediate

What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?

Question 6 of 6
Intermediate

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1: Why is correct sizing of the submersible pump important?
Because an undersized pump will not be able to deliver the required flow and pressure and an oversized pump reduces energy efficiency, which increases operational costs.
1: Why is correct sizing of the submersible pump important?
Because too small a pump will pump the well dry.
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1: Why is correct sizing of the submersible pump important?
Because too big a pump will ruin the taps due to too high pressure.
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2: Why must the pump unit be installed below the dynamic water table?
So you are sure to minimise your power bill.
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2: Why must the pump unit be installed below the dynamic water table?
To avoid the risk of dry-running during operation.
2: Why must the pump unit be installed below the dynamic water table?
To maintain a stable pressure in the system.
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3: What is a key installer benefit of the voltage protection in SQ/SQE?
Steady water supply
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3: What is a key installer benefit of the voltage protection in SQ/SQE?
Faster installation
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3: What is a key installer benefit of the voltage protection in SQ/SQE?
Fewer service visits
4: How long did it take to replace the pump with a Grundfos SQ?
30 minutes
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4: How long did it take to replace the pump with a Grundfos SQ?
60 minutes
4: How long did it take to replace the pump with a Grundfos SQ?
90 minutes
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5: Why is it important to protect the pump from over- and under voltage?
Because large variations in power supply will damage the motor over time.
5: Why is it important to protect the pump from over- and under voltage?
To avoid burning the house fuses.
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5: Why is it important to protect the pump from over- and under voltage?
To minimise the power consumption.
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6: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 100 V and 250 V
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6: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 150 V and 315 V
6: What must the supply voltage lie between in order for the SQ/SQE pump to deliver a flow of water?
Between 230 V and 400 V
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