Norm01
Mechanical
- Apr 18, 2008
- 27
Hello, I'm relatively new to the HVAC and HVAC controls industry and one of the projects I have been involved with is upgrading the ventilation system controls for an existing diesel generator room that is not working properly. The existing room is equipped with an O/A damper, return damper and relief damper all operated with pneumatic actuators and pneumatic controls (see attached sketch). The building is equipped with a BMS. The client wants to upgrade the ventilation control system to electric controls, but is wondering if the existing pneumatic actuators can be reused. Most of the actuators have been replaced in the last 4 years, but a few are probably more than 10 years old. My questions are as follows,
Is it worth using the existing pneumatic actuators or should they just be replaced with new electric actuators?
If the pneumatic actuators are used how are they connected to the electric control system?
What will the control system consist of? New electric temperature sensor(s), actuators and a new DDC control panel?
Any information that can be provided to these questions or to the control system in general would be of great help. Thanks.
Is it worth using the existing pneumatic actuators or should they just be replaced with new electric actuators?
If the pneumatic actuators are used how are they connected to the electric control system?
What will the control system consist of? New electric temperature sensor(s), actuators and a new DDC control panel?
Any information that can be provided to these questions or to the control system in general would be of great help. Thanks.