Commercial Building Automation and Energy Services
With the right HVACR contractor, comfort doesn’t have to mean COST. Here’s what you need to know about energy:
Building Automation goes beyond the programmable thermostat and allows the building owner/manager to get detailed information and increased control of their building’s HVAC, lighting, energy usage, security, etc. A building automation system can send email alerts if the heat goes down over a long winter holiday weekend, or provide video data if a motion sensor is tripped. If you can dream it, a building automation system can probably do it. For more information, see our Building Automation page.
Motors generally have two speeds, full speed and stop. VFDs and VSDs allow the motors to run at varying speeds to produce the precise level of comfort you need in a much more efficient way. To put a number on it, motors running at full speed use not two times, but nearly 8 times the energy of a motor running at half speed. Consider the impact of that on your electric bill… See our VSD page for more info.
One of the simplest ways to get free cooling is by including an economizer on your rooftop unit. Adding an economizer (the bird house looking thing jutting out left hand side of the unit in the photo to the right) to your rooftop unit can save you between 14-40% each year on your energy bill. An economizer is a damper, or adjustable opening, that is controlled by a sensor which measures one or more of three things: outside air temperature, outside air humidity, and/or CO2 levels of inside air (for air quality purposes). The sensor compares the temperature and humidity of the outside air to the return air from inside the building and then sends whichever air is “more efficient” to the unit. The drier and cooler the air is, the less energy is needed to condition it. When the outside air hits low enough temps, the AC compressor doesn’t need to run at all, hence, free cooling!. Click here for more free cooling options.
In typical chiller operation, warm water from the building goes through the chiller condenser. The condenser removes the heat from the water and circulates it back through the building. This process uses a significant amount of energy. With the addition of a cooling tower, the warm water coming back from the building gets sent to the cooling tower first. The cooling tower cools the water by using the process of evaporation and/or by the presence of colder outside air. If the water is cooled enough by evaporation and outside air, the chiller condenser doesn’t need to run, hence, free cooling! Click here for more free cooling options.
Energy WatchDog Program Building Automation systems work best when they are well-managed and monitored regularly. Who’s monitoring your system? Advance Air will develop a customized program to monitor your Energy Management System, keep your software up-to-date to ensure system security, and make sure you are getting the most out of your Building Automation investment. For more information, see our the Energy WatchDog Program page.