Previously we mentioned the importance of good airflow management. We achieve that by making absolutely sure the curb adapter design mates with the performance and structural specs of the RTU on one end and the supply and return holes that feed the building on the other end. But that’s only part of the process — we also have to make sure the curb adapter integrates with the equipment to accommodate other aspects of its design.
Engineers must make all kinds of considerations when designing the top of a curb for a specific RTU model. For instance, they may decide to add acoustical insulation to reduce noise or vibration. They may add moisture-resistant panels to protect metal surfaces from the natural condensation that occurs with equipment temperature changes. Or they may need to make room for an extra pipe, nipple or other object hanging down from the unit. A well-designed curb accommodates all of these little enhancements so that the equipment will integrate perfectly for years of trouble-free operation.
Unfortunately, a relatively inexperienced curb adapter company may not duplicate this original attention to detail in their adapter tops — they’re focused on making sure the supply and return ports line up and deliver the correct airflow. Yes, that’s important, but what about the soundproofing, the condensation protection, or those extra variables that the curb engineer had factored into the original design?
This is where 30 years of experience pays off. Our engineer, Van Smith, actually designed many of the systems currently in service. His first-hand experience with these devices helps him know where that insulating panel originally went (or needs to go), or where a pipe or nipple will need some extra room, ensuring that all the equipment integrates flawlessly. Experience isn’t just priceless — it can actually save a lot of money!