Air-cooled exchanger (fin-fan)

ISO 10628-2 (groups 3-5, heat exchangers, furnaces, cooling towers) / PIP PIC001 / TEMA / API 661

Drawn as

A long horizontal bundle (a rectangle with a zig-zag or straight tube passes) with header boxes at the ends and a fan (a circle with blades) beside or under it, often with an M motor.

Meaning

Fin-fan cooler: compressor discharge coolers, lube-oil and condensate coolers onshore. Becomes air-cooled-exchanger.

Variants

Forced draught: fan below; induced draught: fan above
Louvres and VFD drives are drawn as extra marks
Some legends draw a rectangle with an X and a fan circle