Honeywell ACM 150 Manual To Installation, Operation, And Maintenance page 113

ACM 150
Figure 68. Acquire background
Hardware servicing
The Hardware Service mode requires login access. In this mode you can select
any of the following:
Watchdog timer test
If the computer is operating properly the Watchdog Timer (WDT) will always be
reset before it reaches the end of its interval and its relay, #82, will not activate. If
the computer fails then the WDT will timeout and activate its relay. The test
function forces a WDT timeout.
Perform an entire line leak test
Any authorized user can perform this test, provided your ACM 150 is configured for
automatic line leak tests. Typically, this test is initiated because one or more line
failed its automatic test. If services were performed to resolve the failure, this test
verifies successful corrective actions. In this mode you can observe the pressure
test of each line as it occurs.
113