Building Automation lab -- where we completed our senior project, using air handler unit with the supply fan, associated temperature sensors and devices, boiler and two associate pumps
Inside air handler unit with low limit temperature sensor, cooling coil, filters and air dampers
Wiring actuators – motors that drive the dampers
Working on hot water boiler, which features two pumps for the water system, and wiring boiler’s aqua stat
Wiring variable frequency drive, which controls fan’s running speed
Pump motor control panel, which has wire termination strips, two current transformers, two 24-volt relays, and a 120-volt to 24-volt transformer
All devices, sensors, pumps, and fans are wired back to the Siemens Modular Building Controller.
This panel shows finished physical wiring and mounting devices. Point modules allow us to locate each device within the computer.
Here we see Siemens’ open processor (brains of the entire controller) and power module.
Plugging into RJ-11 jack connected via serial port to a laptop to begin setting up Siemens’ modular building controller.
Also connects the Trunk Interface- 2, allowing a network of controllers to interface with front-end computer.
Drilling hole in duct work to insert device to measure static pressure and air flow.
Connecting pitot tube to prepare device to measure total pressure in duct and velocity pressure of air
Watching laptop graphics while monitoring start up of air handler unit and boiler to make sure all devices turn on/off, stroke open/closed, and sense correctly before letting the controller run automatically
"This was a great experience because it allowed us to work in a real-world situation before we begin our careers as building automation technicians/engineers.”