PACS map of the H₂O (2₁₂ − 1₀₁) emission at 1670 GHz of the IRAS 4 region compared with the Spitzer-IRAC emission at 4.5 μm and the CO (14−13) emission in the left panel and with the JCMT CO (3−2) and APEX CO (6−5) emission (Yıldız et al. 2012) in the right panel. The CO (3−2) and CO (6−5) maps are integrated in the velocity ranges between −20 km s^-1 and 3 km s^-1 for the blue-shifted emission and 12 km s^-1 and 50 km s^-1 for the red-shifted emission. The contour levels start at the 5σ level and increase in steps of 10σ for the PACS H₂O and CO (14−13) maps, from the 5σ level emission in steps of 5σ for the CO (3−2) and from the 5σ level emission in steps of 3σ for the CO (6−5). Offsets are with respect to the central source IRAS 4A, at coordinates α_J2000 = 03^h29^m10.^s50, δ_J2000 = + 31°13′309. The positions of the IRAS 4A and IRAS 4B binary sources are marked with yellow symbols (Looney et al. 2000). The regions mapped with HIFI in the water lines around the selected shock positions (R1 and R2) are indicated.