TCA Controls provides integrated controls solutions for commercial and industrial HVAC systems. Our experienced team designs, writes programs and installs complete HVAC controls systems to meet a building owner's building automation needs. TCA Controls is part of the Trumbull Campbell family of HVAC-related businesses that together provide a turnkey solution for HVAC systems. Trumbull Campbell selects and sells applied HVAC equipment. TCA VRF sells Variable Refrigerant Flow (VRF) system solutions. TCA Solutions starts up and commissions the commercial and VRF equipment we sell. HVAC Parts-Direct is an online ecommerce store selling and shipping nationwide OEM replacement parts for AAON and other major brands.