As an absolute minimum, change filters _____ .
A) once per year when the system's output is reduced
B) monthly
C) at the beginning of the heating and cooling seasons
D) weekly

Question

Quizplus · Accepted Answer

Changing filters at the beginning of the heating and cooling seasons is a widely recommended practice to ensure the HVAC system operates efficiently. This timing aligns with significant shifts in system use, making it a practical minimum standard for filter maintenance.

As an Absolute Minimum, Change Filters _____