It had been a rough week at school.
My sinuses had started acting up, and the constant sneezing from the allergies was not helping.
The students and staff alike noticed that the air quality had decreased significantly. The high temperatures of spring during the day were causing our comfort. The headteacher gave us a free class after receiving confirmation from the a/c repairman that he was coming. The school maintenance department headed by Mr. Krazinsky had contacted the air conditioning company for three days consecutively. The air conditioning business had an influx of calls. It was a/c repair season, and finding an available air conditioning professional was nearly impossible. We finally booked an appointment, and the servicemen would visit the school to check the central air conditioner. Though other students left, I chose to stay as I was finishing some homework, and my parents would not be home till late, so I opted to stay in school. First, they asked about the a/c setup as they wanted to know when the air conditioning install had been done. After collecting this information, they proceeded with the a/c care, which involved checking equipment such as climate control. The digital thermostat was dusty and needed to be vacuumed to keep the dust away from sensitive components. Part of the a/c service was to replace the air conditioning filter to ensure that the air conditioner functioned optimally. I stood close to the servicemen for nearly three hours, observing them work. I learned a lot about the HVAC units, how they work, and how to maintain them.