Integrated intensity map of the p-H₂O 2₀₂-1₁₁ line in the blue- ([−60,−50 ] km s^-1, blue contours from 30% of the peak emission in steps of 10%) and redshifted ([−35,−15 ] km s^-1, red contours from 30% of the peak emission in steps of 10%) velocity ranges toward the IRDC region. The gray contours represent the integrated intensity of C¹⁸O(9–8) ([−48,−42 ] km s^-1, from 50% of the peak emission in steps of 10%). The white triangles mark SMM1 and SMM2, the green cross the position observed in the single-pointing HIFI observations (labeled as outflow in Fig. 8.) The dotted lines outline the cuts used to derive the P-V diagrams discussed in Sect. 3.2.1).