Quote Originally Posted by wannafreeze View Post
Hi Ice,
on page 42, for unit 'cooler b' there is no fan delay. The unit fan contactor works off of the 'unit a' fan delay. It seems like a flaw in the series wiring of the 3 wire controls. Am I seeing it right?
I hadn't thought of that issue before.

Having the terminators in series at least has a failsafe backup in the clock...preventing you from getting stuck in defrost if one of them fails to terminate.

If you had the fan delays in series (with a single evap fan contactor), you could be stuck with no evap fans on the whole system.