NV C-1A Boilers Practice Questions - Nevada C-1A Boilers Contractor Examination Exam

What is the main balancing advantage of a two-pipe reverse-return hydronic layout?

The first radiator on the supply is also the last on the return, so circuit lengths are nearly equal. Only one pipe is run, so every radiator is starved equally. The return is omitted and water is dumped to drain. Steam and water share the same pipe at all loads.

Correct Answer:

The first radiator on the supply is also the last on the return, so circuit lengths are nearly equal.

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