The HDT family of ECUs includes 9K, 18K, 36K, 48K, 60K, 96K and 120K capacity units. From the smaller lightweight units to the larger skid-mounted units, HDT’s family of ECUs have undergone and passed Mil Standard and ASHRAE Capacity Test Standards. For applications requiring Mil-Spec and COTS designs for cooling and heating tents, shelters, vans, ISO container/gen-set/ECU packages, HDT’s ECUs are a perfect choice.