| Name | Description |
| COUNTERFLOW |
 | Counter Flow | Counterflow heat exchanger arrangement |
|
| CROSSFLOW |
 | Cross Flow | Crossflow heat exchanger arrangement |
|
| PARALLELFLOW |
 | Parallel Flow | Parallel flow heat exchanger arrangement |
|
| MULTIPASS |
 | Multipass | Multipass flow heat exchanger arrangement |
|
| OTHER |
 | (other) | Value is not listed. |
|
| NOTKNOWN |
 | (unknown) | Value is unknown. |
|
| UNSET |
 | (unset) | Value has not been specified. |
|