2024 48/50JC Variable Capacity RTU Test
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Question 1 of 40
1. Question
48JCDW would indicate what type of RTU?
CorrectIncorrect -
Question 2 of 40
2. Question
The standard unit control board on Variable Capacity Cooling units is a______? CorrectIncorrect -
Question 3 of 40
3. Question
The 48/50JC unit with SystemVu can be controlled via ___________? CorrectIncorrect -
Question 4 of 40
4. Question
SystemVu contains over ________ configurable points. CorrectIncorrect -
Question 5 of 40
5. Question
A low ambient kit is required for low ambient cooling? CorrectIncorrect -
Question 6 of 40
6. Question
Spreader bars are optional when lifting a rooftop unit? CorrectIncorrect -
Question 7 of 40
7. Question
What is the recommended depth of a p-trap? CorrectIncorrect -
Question 8 of 40
8. Question
What is the maximum supply voltage phase imbalance allowed? CorrectIncorrect -
Question 9 of 40
9. Question
What is the voltage imbalance if L1-L2 is 227v, L2-L3 is 220v and L1-L3 is 219? 
CorrectIncorrect -
Question 10 of 40
10. Question
Refer to previous question, Is the voltage imbalance acceptable? CorrectIncorrect -
Question 11 of 40
11. Question
It is critical that voltage ALWAYS be checked for imbalance prior to selling a replacement RTU? CorrectIncorrect -
Question 12 of 40
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? CorrectIncorrect -
Question 13 of 40
13. Question
When using a T55, T56 or T59 controller, where do you wire it to on SystemVu? CorrectIncorrect -
Question 14 of 40
14. Question
What manner do sensors get wired for sensor averaging? CorrectIncorrect -
Question 15 of 40
15. Question
If you are using a RAT or Space Temperature sensor, what must you change in SystemVu? CorrectIncorrect -
Question 16 of 40
16. Question
ZS Sensors must be wired to ________? CorrectIncorrect -
Question 17 of 40
17. Question
When using a ZS Sensor or an Equipment Touch you must change the Unit Control Type to _________? CorrectIncorrect -
Question 18 of 40
18. Question
How many configurable Discrete Input (DI) channels does SystemVu have? CorrectIncorrect -
Question 19 of 40
19. Question
Prior to start up it is required that you must perform _____________? (Check all that apply) CorrectIncorrect -
Question 20 of 40
20. Question
When altering fan speeds, you are adjusting ____________? CorrectIncorrect -
Question 21 of 40
21. Question
How many configurable indoor fan speed are there on a 48/50JC? CorrectIncorrect -
Question 22 of 40
22. Question
Which fan speed do you adjust when setting for economizer operation? CorrectIncorrect -
Question 23 of 40
23. Question
What is the default COMP START SPEED (RPM)? CorrectIncorrect -
Question 24 of 40
24. Question
What is the purpose of the Capacitor Board? CorrectIncorrect -
Question 25 of 40
25. Question
If you have a Humidimizer unit, how many transformers will be in the unit? CorrectIncorrect -
Question 26 of 40
26. Question
Which control board monitors the HPS (High Pressure Switch)? CorrectIncorrect -
Question 27 of 40
27. Question
How many places are there to view fault codes or LED fault codes on a 50JC Elec/Elec unit? CorrectIncorrect -
Question 28 of 40
28. Question
Which LED indicators are on the MBB? select all that apply CorrectIncorrect -
Question 29 of 40
29. Question
If you experience a communication failure, what would you want to verify before replacing the MBB? CorrectIncorrect -
Question 30 of 40
30. Question
The OAT, RAT, SAT and SPT Thermistors are of what type? CorrectIncorrect -
Question 31 of 40
31. Question
When troubleshooting a transducer it is important to always verify you have ________ on A & B before checking the signal. CorrectIncorrect -
Question 32 of 40
32. Question
Which 2 legs of the transducer would you check for the signal? CorrectIncorrect -
Question 33 of 40
33. Question
It is ALWAYS a good idea to use dielectric grease on suction transducers? CorrectIncorrect -
Question 34 of 40
34. Question
Which transformer powers the MBB and the Converter/Analog board? CorrectIncorrect -
Question 35 of 40
35. Question
The RPM displayed on the Converter/Analog board indicate_________? CorrectIncorrect -
Question 36 of 40
36. Question
Faults from the Drive board and the Converter/Analog board can be seen in SystemVu? CorrectIncorrect -
Question 37 of 40
37. Question
The Drive board should always have a green LED illuminated if power is on? CorrectIncorrect -
Question 38 of 40
38. Question
What is the current version of software available for SystemVu on JC units? CorrectIncorrect -
Question 39 of 40
39. Question
What is the maximum USB drive size you can use for updates? CorrectIncorrect -
Question 40 of 40
40. Question
What is the default password for SystemVu when changing setting or applying updates? CorrectIncorrect
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