2023 48/50JC Variable Capacity RTU Day 1

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Question 1 of 20

1. Question

48JCDW would indicate what type of RTU?

Elec/Elec Ultra High Efficiency unit with Variable Cooling Capacity
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Gas Ultra High Efficiency unit with variable cooling capacity and Humidimizer
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Gas Mid-Efficiency unit with 3 stage cooling and Humidimizer
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Gas Ultra High Efficiency unit with variable cooling capacity
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Question 2 of 20

2. Question

The standard unit control board on Variable Capacity Cooling units is a______?

RTU Open
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SmartVu
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ComfortLink
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SystemVu
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Question 3 of 20

3. Question

The 48/50JC unit with SystemVu can be controlled via ___________?

24vac Thermostat
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ZS Sensor
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Standalone
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BACnet
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BAS
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All of the above
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Question 4 of 20

4. Question

SystemVu contains over ________ configurable points.

270
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200
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100
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150
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Question 5 of 20

5. Question

A low ambient kit is required for low ambient cooling?

TRUE
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FALSE
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Question 6 of 20

6. Question

Spreader bars are optional when lifting a rooftop unit?

TRUE
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FALSE
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Question 7 of 20

7. Question

What is the recommended depth of a p-trap?

2"
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3"
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4"
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5"
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6"
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Question 8 of 20

8. Question

What is the maximum supply voltage phase imbalance allowed?

10%
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6%
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2%
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5%
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4%
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Question 9 of 20

9. Question

What is the voltage imbalance if L1-L2 is 227v, L2-L3 is 220v and L1-L3 is 219?

1.76%
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1.80%
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1.85%
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2%
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2.18%
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Question 10 of 20

10. Question

Refer to previous question, Is the voltage imbalance acceptable?

YES
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NO
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Question 11 of 20

11. Question

It is critical that voltage ALWAYS be checked for imbalance prior to selling a replacement RTU?

YES
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NO
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Question 12 of 20

12. Question

Voltage mins/max’s are just a rule of thumb and typically OK if it fluctuates above the max but stays below most of the time?

TRUE
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FALSE
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Question 13 of 20

13. Question

When using a T55, T56 or T59 controller, where do you wire it to on SystemVu?

TB3
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24vac Terminal Block
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TB5
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TB4
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RNET Port
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Question 14 of 20

14. Question

What manner do sensors get wired for sensor averaging?

Series
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Parallel
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Series-Parallel
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Daisy Chained
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Question 15 of 20

15. Question

If you are using a RAT or Space Temperature sensor, what must you change in SystemVu?

Sensor Type
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Unit Control Type
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Thermostat Type
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Sensor Control Type
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Question 16 of 20

16. Question

ZS Sensors must be wired to ________?

TB3
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TB5
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RNET
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24vac Terminals
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Y3
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Question 17 of 20

17. Question

When using a ZS Sensor or an Equipment Touch you must change the Unit Control Type to _________?

Space Sensor
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ZS Sensor
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RAT Sensor
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Space Temp
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24v Control
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Question 18 of 20

18. Question

How many configurable Discrete Input (DI) channels does SystemVu have?

2
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4
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5
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6
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7
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Question 19 of 20

19. Question

Prior to start up it is required that you must perform _____________? (Check all that apply)

The Quick Set Checklist
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Network Checklist
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System Autotest
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Auto Configuration
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Economizer Calibration
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Question 20 of 20

20. Question

When altering fan speeds, you are adjusting ____________?

Fan CFM's
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Fan RPM's
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Blower static pressure
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Design CFM
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