No. Pipe size, material and route must match the exact product's requirements. Similar-looking connections do not establish compatibility.
What the observation means
A replacement unit can have different permitted arrangements even when it occupies the same space. Existing pipework may also contain restrictions or alterations.
A useful next step
Use an appropriate assessment before replacing or modifying equipment. Do not reduce a pipe with an adapter merely to make it fit. Describe the visible arrangement without opening wastewater connections, and keep new installation work separate from a breakdown enquiry.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.