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TK 56701-1-IM-EN
Auxiliary Electrical Accessories
Thermo King does not recommend adding any auxiliary electrical accessories to the electrical system of a T-590, T-690,
T-890 or T-1090 series units equipped with SR-3 controllers and Tier 4 engines unless approved by Thermo King.
TracKing (OPTION)
Units equipped with the factory installed TracKing option requires additional procedures to activate the system. See
TracKing Cellular Installation Manual TK 56186 for activation procedures.