Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
If located in the OA stream, you would get a higher LMTD heat transfer efficiency and will need a smaller coil (due to higher deltaT).
For the return air stream option, if the return air is picking up moisture from the space and if the OA temperature is low, might get condensation in the mixing box,.
| | 2 | No.2 Revision |
If located in the OA stream, you would get a higher LMTD heat transfer efficiency and will need a smaller coil (due to higher deltaT).
For the return air stream option, if the return air is picking up moisture from the space and if the OA temperature is low, might get condensation in the mixing box,.
And if the AHU has a heat recovery coil. it defenately has to be in the OA stream to prevent freezing of the heat recovery coil
