Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I can have a stab at this but I am not sure if this will solve your problem. In the past when we were using reheat coils in a VAV system we would set them to "reverse", I think (the options are normal or reverse), which was the opposite of what the I/O guide said we should do to reheat. Then a version change happened, it could easily have been from 7.2 onwards and "reverse" no longer worked (ie the damper no longer opened and the reheat coil no longer reheated), so we changed them to "normal" and viola they worked again. Now I might have mixed up which way we changed them (reverse to normal, or normal to reverse) but I would recommend trying in v8.2 to change the reverse/normal option to the opposite of what it was when it was working in v7.2.
As I say this might not solve your problem and might not be related to your problem, if the EnergyPlus is saying there is no load then there is no reason for the reheats to turn on. But it is an easy change to make and it did cause us some problems for a while with the reheat coils so might be worth a try.
| | 2 | No.2 Revision |
I can have a stab at this but I am not sure if this will solve your problem. In the past when we were using reheat coils in a VAV system we would set them to "reverse", I think (the options are normal or reverse), which was the opposite of what the I/O guide said we should do to reheat. Then a version change happened, it could easily have been from 7.2 onwards and "reverse" no longer worked (ie the damper no longer opened and the reheat coil no longer reheated), so we changed them to "normal" and viola voilà they worked again. Now I might have mixed up which way we changed them (reverse to normal, or normal to reverse) but I would recommend trying in v8.2 to change the reverse/normal option to the opposite of what it was when it was working in v7.2.
As I say this might not solve your problem and might not be related to your problem, if the EnergyPlus is saying there is no load then there is no reason for the reheats to turn on. But it is an easy change to make and it did cause us some problems for a while with the reheat coils so might be worth a try.
