Heat producing unit for a motor vehicle

A vehicle comprising

• at least one heat-producing unit configured to thermally treat a heat-transfer fluid, including at least one heat-transfer fluid circuit which is designed to have a heat-transfer fluid passing there through, and a refrigerant fluid circuit which is designed so that the refrigerant can circulate therein and including at least one compressor unit for compression of the refrigerant fluid, an expansion unit for expansion of the refrigerant fluid, at least one heat exchanger which is configured to exchange calories between the refrigerant fluid and the heat-transfer fluid, and ducts connecting components which constitute the refrigerant fluid circuit, wherein the heat-producing unit further includes at least one fluid interface which is designed to connect the at least one heat-transfer fluid circuit to an installation outside the heat-producing unit, the heat-producing unit further including a thermal and acoustic insulation device which extends at least partly around said components of the refrigerant fluid circuit, with the thermal and acoustic insulation device maintaining the position of said components of the refrigerant fluid circuit within the heat-producing unit,
• an external installation through which heat-transfer fluid passes, and
• a chassis,
• the external installation being connected to the at least one heat-transfer fluid circuit by means of the at least one fluid interface, the heat-producing unit being secured to the chassis by means of the at least one securing device.

A method for assembly of a heat-producing unit configured to thermally treat a heat-transfer fluid, including at least one heat-transfer fluid circuit which is designed to have a heat-transfer fluid passing there through, and a refrigerant fluid circuit which is designed so that the refrigerant can circulate therein and including at least one compressor unit for compression of the refrigerant fluid, an expansion unit for expansion of the refrigerant fluid, at least one heat exchanger which is configured to exchange calories between the refrigerant fluid and the heat-transfer fluid, and ducts connecting components which constitute the refrigerant fluid circuit, wherein the heat-producing unit further includes at least one fluid interface which is designed to connect the at least one heat-transfer fluid circuit to an installation outside the heat-producing unit, the heat-producing unit further including a thermal and acoustic insulation device which extends at least partly around said components of the refrigerant fluid circuit, with the thermal and acoustic insulation device maintaining the position of said components of the refrigerant fluid circuit within the heat-producing unit, comprising at least assembling the refrigerant fluid circuit, assembling the at least one heat-transfer fluid circuit, and installing the thermal and acoustic insulation device at least around components of the refrigerant fluid circuit.