The trap is not installed on the emergency pan. I'm sorry I did not make that statement clear.
Originally posted by billva
have the contractor install an E-Z trap. this has a removable float switch which will shut down the system in the event of a clog. they also have a clear trap and a brush so any debris that settles in the trap can be seen and removed.
another safety device is a float switch for the emergency drain pan, wired in series with the e-z-trap.
as for the trap in the emergency pan drain, i've never heard of that and am curious to see its purpose.
good luck, looks good.