Here's the summary:
- A push button is used to start a supply fan (controller 1).
- A return fan (controller 2) is interlocked to start automatically with the supply fan.
- In the event of a smoke condition the fans shutdown automatically.
- The supply and return fans cannot be restarted until the smoke detector system is reset (a latching relay is going to be used).
- In the case of excessive smoke, an exhaust fan (controller 3) can be started but only if the smoke detector system has not been reset.
A need to create a ladder and wire diagram.
I'm having problems from the third step down.
- A push button is used to start a supply fan (controller 1).
- A return fan (controller 2) is interlocked to start automatically with the supply fan.
- In the event of a smoke condition the fans shutdown automatically.
- The supply and return fans cannot be restarted until the smoke detector system is reset (a latching relay is going to be used).
- In the case of excessive smoke, an exhaust fan (controller 3) can be started but only if the smoke detector system has not been reset.
A need to create a ladder and wire diagram.
I'm having problems from the third step down.
