Thermo King SB-210+ Trailer Refrigeration Unit

The Thermo King SB-210+ is the plus-generation revision of one of the highest-volume trailer units Thermo King built. The SB+ line — SB-110+, SB-210+, SB-310+ and the rail-spec SB-310R+ — was Thermo King’s answer to fleets asking for units that were simpler to operate, harder to set up wrong, and cheaper to run. Listed at $6,000. The headline changes over the plain SB-210 are the electronic throttling valve and the option of SmartPower standby operation. Both attack the same thing: fuel burned for no reason. Thermo King SB-210+ Specifications Type: single-temperature nose-mount trailer refrigeration unit Engine: TK486V four cylinder direct injection diesel Refrigerant: R-404A Capacity control: electronic throttling valve (ETV) Controller: SR-2 microprocessor with OptiSet profiles Standby option: SmartPower 460 V electric standby operation Fuel tank: 50 gallon aluminium tank commonly fitted Electrical: 12 VDC Condition: new and inspected used units available Price: $6,000 What the Electronic Throttling Valve Does Without an ETV, a reefer unit modulates capacity crudely — it runs, it cycles, it runs again. The ETV meters refrigerant flow continuously, so the unit can hold a tight band around setpoint at part load instead of overshooting and recovering. In practice that means less temperature swing across the load, fewer compressor starts, and measurably less fuel over a season. SmartPower Electric Standby SmartPower adds an electric motor alongside the diesel. Plugged into a 460 V, three-phase supply at a dock or a yard, the unit runs on grid power with the engine off. Thermo King put the operating cost saving at up to 75 percent for the hours a trailer spends stationary, and the second-order benefits matter too: no exhaust in a loading bay, no noise complaints at a night-time distribution centre, and engine hours that stop accumulating while the trailer earns nothing. Applications Long-haul frozen and chilled freight, grocery and foodservice distribution, and any operation whose trailers spend real hours at a dock with power available. If your trailers never plug in, the plain SB-210 saves you the premium. Freight and Support Ships by flatbed with forklift loading at both ends; freight is quoted to your ZIP code. Parts and service are available nationwide through the Thermo King dealer network, and we stock replacement TK486V engines . Contact us for engine hours and photographs of the exact unit.