NOVELTY - The system (100) has an evaporator (105) including a refrigerant tank (120), and a coolant tank (110) in thermal communication with the refrigerant tank, where the coolant tank includes an inlet (125) and an outlet (130). A thermal control device (115) is fluidly coupled to the inlet and the outlet of the coolant tank. The refrigerant tank comprises one of a refrigerant inlet tank (140) and a refrigerant outlet tank (145). The evaporator comprises an airflow conduit including an evaporator tube, where the tube is fluidly coupled to the refrigerant tank.    USE - Integrated thermal transfer system for transferring heat between a coolant such as water and glycol, and a refrigerant in an heating, ventilation, and air conditioning (HVAC) system in thermally controlling devices such as battery, heat exchanger and phase change material (all claimed), in electric vehicles or hybrid vehicles to change temperature of the coolant.    ADVANTAGE - The system avoids need for added airside or refrigerant pressure drop in the evaporator of the system for cooling of the thermally controlling device, provides minimal increase in a packaging space required by the evaporator and the overall refrigerant system, where an additional space necessary for the integrated coolant tank can be positioned exterior to the airflow within the evaporator and the HVAC unit, and provides minimal effect on pull down cooling by use of the pump, reduces operational complexity and minimizes manufacturing costs. The system provides a conduit containing the coolant to be simply placed in thermal communication with the thermal control device, where the conduit can wrap around or wind in a serpentine pattern along the thermal control device so as to increase a contact area between the conduit and the thermal control device, and hence increasing thermal transfer with the device.    DETAILED DESCRIPTION - The coolant tank i.e. reservoir. The thermal control device is a battery. An INDEPENDENT CLAIM is also included for a method for using an integrated thermal transfer system.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an integrated thermal transfer system.    Integrated thermal transfer system (100)    Evaporator (105)    Coolant tank (110)    Thermal control device (115)    Refrigerant tank (120)    Inlet (125)    Outlet (130)    Refrigerant inlet tank (140)    Refrigerant outlet tank (145)