Heat-exchanger coil assembly and complex thereof

摘要

A plurality of heat-exchanger coils (9) each having a different winding diameter are provided between a header (2) of the inlet side and a header (3) of the outlet side so that the two headers are in communication with each other. The heat-exchanger coil assembly is constructed so that coils of smaller winding diameter are surrounded by coils of larger winding diameter. $$