I had a Munchkin Contender gas boiler installed.
I keep getting a "flu" error code.

The technician tried changing some settings.

Can someone give me an opinion on this:

There is a drain pipe coming out of the condensate cup on the bottom. The tech who installed it drilled a hole in my concrete floor and inserted the drain pipe directly unto this. It is draining into what ever is underneath the concrete floor. This does not seem right. Is this noramally how it is done? To me I suspect it is clogging up with mud etc., and causing the "flu" error code.

Shouldn't the drain pipe lead into an actual drainage system like a sink, sump pump, etc?

Any help would be appreciated.