Heat pump with multi-stage compressor and spiral housings

A method for manufacturing a heat pump, comprising:

• an evaporator for evaporating operating liquid so as to obtain operating vapor;
• a compressor for compressing the operating vapor so as to obtain compressed operating vapor;
• and a condenser for condensing the compressed operating vapor, wherein the compressor comprises a first compressor stage and second compressor stage, wherein the first compressor stage comprises a first spiral housing, a first drive motor and a first drive shaft, wherein the second compressor stage comprises a second spiral housing, a second drive motor, and a second drive shaft comprising:
• arranging the drive shafts so that the first drive shaft is separate from the second drive shaft, and
• configuring the first drive shaft so as to be standing in an operation direction of the heat pump.

A method for operating a heat pump, comprising:

• an evaporator for evaporating operating liquid so as to obtain operating vapor;
• a compressor for compressing the operating vapor so as to obtain compressed operating vapor;
• and a condenser for condensing the compressed operating vapor,
• wherein the compressor comprises a first compressor stage and a second compressor stage, wherein the first compressor stage comprises a first spiral housing a first drive motorand a first drive shaft wherein the second compressor stage comprises a second spiral housing, a second drive motorand a second drive shaft, wherein the first drive shaft is separate from the second drive shaft, comprising:
• setting up the heat pump in an operation direction;
• and
• operating the heat pump in the operation direction so that the first drive shaft is configured to be standing in the operation direction of the heat pump