Left panel: position-velocity (p-v) plot taken along the kinematic major axis (PA = 352°) of NGC 1614. The blue star markers delineate the (projected) rotation curve fitted in Sect. 4.3 and the allowed virial range around it (delimited by the blue lines). The red squares delimit the region where emission is detected from the line wings. Contour levels are −3σ, 3σ, 5σ, 10σ, 20σ, to 200σ in steps of 20σ with 1σ = 0.8 mJy beam^-1. Middle panel: the p-v plot taken along the kinematic minor axis (PA = 82°). Contour levels are −3σ, 3σ, 5σ, 10σ, 20σ, to 140σ in steps of 20σ with 1σ = 0.8 mJy beam^-1. The allowed virial range is delimited by the blue curves. Right panel: same as middle panel but zooming in on the central ±3″ region around the center. The red squares delimit the region where emission is detected from the line wings. In all panels the velocity scales are relative to v_sys, and the spatial scales (X and Y) are relative to the dynamical center. We show the spatial resolutions projected along the major axis (left panel) and along the minor axis (middle and right panels) obtained with NA weighting.