Mitsubishi Electric Corp. is feeling the heat after admitting that it has faked testing data when supplying train companies with air conditioning equipment apparently for more than 30 years.

Mitsubishi Electric Trane HVAC US LLC (METUS) is a leading supplier of all-electric, all-climate Ductless and Ducted Mini-split and Variable Refrigerant Flow (VRF) heat pump and air-conditioning ...