A method for carrying out a heat transfer between alternately working adsorbers (Ad1, Ad2) in an adsorption-type refrigeration system having an external cooling circuit (Kw) and an external heating circuit (Hw), a closed heat transfer circuit connected in between a first adsorber and a second adsorber, having a heat transfer medium (Wm) circulating therein, wherein in said heat transfer circuit, a heat transfer with the external cooling circuit (Kw) is carried out via a first heat contact, and a heat transfer with the external heating circuit (Hw) is carried out via a second heat contact, wherein the heat transfer circuit carries out the following partial steps in a cyclic process: - first partial step: heating the heat transfer medium (Wm) in the second heat contact, and introducing the heat transfer medium into the first adsorber, simultaneously discharging the heat transfer medium (Wm) from the second adsorber and cooling the heat transfer medium in the first heat contact, - second partial step: transferring the heat transfer medium (Wm) between the first adsorber and the second adsorber, simultaneously transferring the heat transfer medium (Wm) from the first heat contact into the second heat contact, - third partial step: heating the heat transfer medium (Wm) in the second heat contact und introducing the heat transfer medium (Wm) into the second adsorber, simultaneously discharging the heat transfer medium (Wm) from the first adsorber and cooling the heat transfer medium in the first heat contact, - fourth partial step: transferring the heat transfer medium (Wm) between the second adsorber and the first adsorber, simultaneously transferring the heat transfer medium (Wm) from the first heat contact into the second heat contact, characterized in that during the first and third partial steps, respectively, when the heat transfer medium is introduced respectively into the second adsorber and the first adsorber, condensation of the heat transfer medium (Wm) takes place, and during the second and fourth partial steps, respectively, when the heat transfer medium is transferred between the first adsorber and the second adsorber, partial evaporation of the heat transfer medium takes place in each case in one of the two adsorbers, and condensation takes place in the respective other adsorber. - first partial step: heating the heat transfer medium (Wm) in the second heat contact, and introducing the heat transfer medium into the first adsorber, simultaneously discharging the heat transfer medium (Wm) from the second adsorber and cooling the heat transfer medium in the first heat contact, - second partial step: transferring the heat transfer medium (Wm) between the first adsorber and the second adsorber, simultaneously transferring the heat transfer medium (Wm) from the first heat contact into the second heat contact, - third partial step: heating the heat transfer medium (Wm) in the second heat contact und introducing the heat transfer medium (Wm) into the second adsorber, simultaneously discharging the heat transfer medium (Wm) from the first adsorber and cooling the heat transfer medium in the first heat contact, - fourth partial step: transferring the heat transfer medium (Wm) between the second adsorber and the first adsorber, simultaneously transferring the heat transfer medium (Wm) from the first heat contact into the second heat contact,