2023 Variable Frequency Drive Day 1 Quiz

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Question 1 of 10

1. Question
What 2 fan speeds and Hertz will a SAV unit operate at?
- 50% / 30hz and 100% / 60hz
- 66% / 40hz and 100% / 60hz
- 70% / 40hz and 100% / 60hz
- 100% / 100hz
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Question 2 of 10

2. Question
All SAV units have 2 compressors? True or False
- True
- False
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Question 3 of 10

3. Question
All units that have a VFD will always come with a keypad to control the VFD?
- All new RTU's come with a keypad for the VFD
- ONLY LC series units will come with a keypad for the VFD
- Only the new EcoBlue units come with a keypad for the VFD
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Question 4 of 10

4. Question
Motors controlled by a VFD are DC voltage motors?
- True
- False
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Question 5 of 10

5. Question
How does the VFD get it’s signal to tell the blower motor what speed to operate at?
- The IGC board
- The signal from the thermostat
- Fan speed relay board
- It is based on the cooling/heating demand
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Question 6 of 10

6. Question
On the Fan Speed Relay Board, what are the “J1” inputs?
- 24vdc inputs from the thermostat
- 24vac inputs from the thermostat
- 24vdc outputs to the thermostat
- 24vac outputs to the thermostat
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Question 7 of 10

7. Question
“JW1” and “JW2” jumpers on the fan speed relay board must always stay intact and never be cut? True or False
- True
- False
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Question 8 of 10

8. Question
A “Fan only” call from the thermostat will operate the blower at what speed?
- 30%
- 45%
- 50%
- 66%
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Question 9 of 10

9. Question
The AEGIS grounding ring is always external of the motor? True or False
- True
- False
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Question 10 of 10

10. Question
When ordering a replacement motor on a SAV unit__________.
- As long as the HP, Voltage and RPMS match, it's OK
- Should always be ordered as OEM as they are special motors
- Will be OK as long as the specs are close to the original motor
- Any ECM Motor will work
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2023 Variable Frequency Drive Day 1 Quiz

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