Browse Items (1 total) Tags: refrigerant monitor Browse All Browse by Tag Search Items Sort by: Title Creator Date Added Trane Letter - February 2012 This is a letter for parts and services to install or replace a Trane refrigerant monitor. It was sent to Noah Tipton. Cost $6,255.00 Tags: $6, 255.00, board of directors, Decatur IL, Decatur Public Library, February 2012, Hunzeker Service Agency, refrigerant monitor, Trane Letter Featured Item Photograph of house on W. North St. Photograph taken on April 26, 1946 of a house on W. North St.