Just like the heating and cooling units have morphed over the years to be more efficient and effective, so have the ways to manage and service these units.
There are fewer steps in the current home services. I remember with my furnace that I had for twenty-five years, the steps in the HVAC service plan were quite a number as the HVAC unit back then was quite complicated. For instance, the heat pumps had complicated ductwork with intricate duct sealing that was done during the cooling install. This ductwork would need to be checked during servicing. Just like the new HVAC systems, the old ones also needed to be checked for any blockages that limited airflow. The other thing that has really changed is temperature control. These regulators were dial meaning that you had to key in the exact temperature you wish to have. Now, these climate controls have advanced to where one can set their preferred temperature at a certain time. These are known as programmable thermostats. There are some that are even voice-activated and you do not need to touch it just sound out the temperature you want to be set and it will instruct the residential HVAC to adjust the temperatures. With these devices, all the technicians need to check when doing the servicing is to check whether the software is updated and the knobs to confirm that all is working well. The HVAC maintenance also includes checking on the HEPA filter which has not really changed since the heating and cooling equipment was invented. Yes, the steps have reduced for some systems while they have increased for others, either way, the servicing process of new HVAC has changed tremendously. The commercial HVAC provider also confirms that the servicing of commercial units has changed.