[TRNSYS-users] range check error

[raffaelecazzato at libero.it]

Good morning,

when I select in the wall type, internal calculation for the convective 
coefficient, 

the simulation will start only if I select one of two options front or back,

if I select both, the simulation does not start and exit the following error 
message:
range check error.

I would know someone help.

Reagards,

Raffaele