©BRIGHTSTARS EXAM SOLUTIONS
10/21/2024 9:24 PM
HVAC Planned maintenance (B) unit 90.
Exam Questions And Answers 100% Pass
One performing an operation check come on be sure to consult the. - answer✔Manufacturer
specifications
Of the 4 phases listed below, which one is only performed on an "as needed" basis -
answer✔Trouble shooting
The phases of a planned maintenance service call are - answer✔Routine maintenance, pre start
inspection, operational checks., and troubleshooting.
Define predictive maintenance - answer✔Monitoring key performance indicators in performing
maintenance when these indicators show a need for maintenance.
How does scheduling maintenance save time and money? - answer✔It prevents small problems
from becoming big ones.
Why is planned maintenance often performed during the off season? - answer✔For more
efficient use of service labor hours.
Before starting the unit. - answer✔Check The power supply with the unit off.
A common cause of low system superheat is. - answer✔Poor airflow across the evaporator.
A common cause of low system sub cooling is. - answer✔System under charged with refrigerant.
The most common time to perform a seasonal check on cooling equipment is in the. -
answer✔Spring
A technician notes that an operating air conditioning system has ice formed on the suction line at
the condensing unit. The technician can reasonably assume that. - answer✔The evaporator coil is
also frozen over.
What side of an air conditioning coil generally collects dirt? - answer✔The side where air enters
the coil.
10/21/2024 9:24 PM
HVAC Planned maintenance (B) unit 90.
Exam Questions And Answers 100% Pass
One performing an operation check come on be sure to consult the. - answer✔Manufacturer
specifications
Of the 4 phases listed below, which one is only performed on an "as needed" basis -
answer✔Trouble shooting
The phases of a planned maintenance service call are - answer✔Routine maintenance, pre start
inspection, operational checks., and troubleshooting.
Define predictive maintenance - answer✔Monitoring key performance indicators in performing
maintenance when these indicators show a need for maintenance.
How does scheduling maintenance save time and money? - answer✔It prevents small problems
from becoming big ones.
Why is planned maintenance often performed during the off season? - answer✔For more
efficient use of service labor hours.
Before starting the unit. - answer✔Check The power supply with the unit off.
A common cause of low system superheat is. - answer✔Poor airflow across the evaporator.
A common cause of low system sub cooling is. - answer✔System under charged with refrigerant.
The most common time to perform a seasonal check on cooling equipment is in the. -
answer✔Spring
A technician notes that an operating air conditioning system has ice formed on the suction line at
the condensing unit. The technician can reasonably assume that. - answer✔The evaporator coil is
also frozen over.
What side of an air conditioning coil generally collects dirt? - answer✔The side where air enters
the coil.
