At some level, sysadmins are at the boundary between hardware and software, between the real physical world and the abstract manipulation of symbols and data.

At some level, sysadmins are at the boundary between hardware and software, between the real physical world and the abstract manipulation of symbols and data. With that in mind, you can ignore HVAC to the extent that "facilities" understands your needs and keeps them in mind during routine operations over a year, a day, or a month, from their project managers down to whoever is on site that day perhaps testing generators, switching away from the chilled water loop now that it is winter, and so on. As a programmer who relies on these services, if the server room "feels hot" but I haven't gotten anything out of monitoring, I will stick my head in. Your monitoring and your A/C can fail at the same time and I have had that happen more than once.