Plant diagram
Figure: 2-pipe system VAV applications, cooling only
Key:
DXR2… | Automation station |
| R1 | Room operator unit |
YS | Supply air VAV |
| D1 | Presence |
YC | Chilled water cooling coils |
| D2 | Window contact |
Sequences
|
| |||
Y | Output signal |
| TR | Room temperature |
SpH | Effective heating setpoint |
| SpC | Effective cooling setpoint |
|
|
| YC | Cooling valve |
Figure: Modulating cooling sequence