Fireye BurnerPRO, Troubleshooting Manual

Page: 37 / 47

Proprietary and Confidential
Valve proving
Method
Valve proving can be programmed to occur either at the beginning of the sequence (before the
prepurge) or at the end of the sequence (after postpurge). In either case, the valve proving test
consists of the same steps. In the following diagrams, blue represents gas is present, red indicates
the valve is closed or the switch is in the normally closed state and green indicates the valve is open
or the switch is in the normally open state.
37
NORMALLY CLOSED
PRESSURE < SETPOINT
CLOSED CLOSED