Yes, the upper one is parallel flow.
The round tubes at each end feed each finned tube crossing the condenser... in parallel.
The black one is "long coil" style and you can trace only one or maybe two very long flow paths through the unit.
The round tubes at each end feed each finned tube crossing the condenser... in parallel.
The black one is "long coil" style and you can trace only one or maybe two very long flow paths through the unit.
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