ServiceOCS specializes in repair, calibration, maintenance and upgrading environmental chambers. This includes repairs on cascade refrigeration systems, programmable controllers, humidity and altitude systems. OCS can also setup your new equipment and train you on programming, use and maintenance.Ca...

About Our BusinessO'Brien Chamber Services was formed by Pat O'Brien. Pat has worked in the HVACR field since 1986. He was factory trained by Thermotron and was a field service engineer there for over 14 years. During his time at Thermotron he covered Maryland, Washington D.C., Virginia, Delaware an...

ServiceOCS specializes in repair, calibration, maintenance and upgrading environmental chambers. This includes repairs on cascade refrigeration systems, programmable controllers, humidity and altitude systems. OCS can also setup your new equipment and train you on programming, use and maintenance.Ca...