Dometic Group’s SP-900 low-power bunk cooler is driven by a rugged, quiet 12V Danfoss compressor and produces 3,100 Btu/hour to cool the bunk area when sleeping. The split system consists of a condensing unit that mounts on the rear of the cab and an evaporator unit that mounts above the bunk or seat; the two units are connected by precharged refrigerant linesets. All components are hermetically sealed, and no refrigerant charging is needed at installation. The inside unit has four separate discharge air vents that can be adjusted as needed to optimize airflow in any direction. A digital thermostat and keypad provide intuitive control over all system functions. The Dometic system runs on power taken directly from the battery bank; no inverter is needed. A low-voltage sensor and automatic shut-off circuit ensure the system will not deplete the truck’s batteries.
The company’s CDF-11 super-slim refrigerator/freezer unit measures 9¼ inches wide and 14 inches high, weighs 19 pounds and provides 0.4 cubic feet of storage space. The adjustable digital thermostat can be set to provide either cooling or freezing with a temperature range of 0-50 degrees Fahrenheit. The compressor-driven CDF-11 runs on 12-volt power and draws about 3.75 amps.