- Electrical switches are wired in parallel.
- Air supply plumbed to solenoid's normally-open port (the end port).
-
Test fan drive by installing a jumper wire across a sensor.
- Manual
override switch (if equipped).
|
- Electrical switches are wired in series.
- Air
supply plumbed to solenoid's normally-closed port (the side
port).
-
Test fan drive by disconnecting a wire from a sensor.
- Manual
override switch (if equipped).
|
|
Learning Objectives:
•
For each type of control system determine: 1) if switches are wired in
parallel or series, 2) if sensors are used, 3) the proper port to plumb
the solenoid valve, and 4) the proper method to test the fan drive. |
