"Utilizing": using, employing, applying.
Wait, the user wants words in the text to be replaced with three synonyms, but names like "Carrier Tru Tech" should be kept as they are. So any standalone words that can be replaced. carrier tru tech download
First, I need to parse each sentence and identify words to replace. For example, "optimizing" can become Boost. I should make sure proper nouns like "Carrier" and "Tru Tech" remain unchanged. "Utilizing": using, employing, applying
"Monitor": track, observe, observe (duplicate). Maybe track, watch, survey. observe (duplicate). Maybe track
"Efficiency": effectiveness, productivity, economical.
Looking at "allow users to control and monitor their HVAC systems remotely" – maybe "remotely" is a candidate. Synonyms: at a distance, from afar, over a distance. at a distance.