Emission line detections in the continuum-subtracted EMIR spectra of the PHz-IRAM sources where three CO transitions have been observed. The fit to each line is overlaid with a red curve for single Gaussian fits, or with a blue curve for double Gaussian fits. Source name, line transition and observed central frequency, intensity, and width are annotated in each panel. All the left panels refer to one source and all the right panels to the other.