P/N G610B
April, 2016 (Rev 0)
Page 5
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FEATURES AND OPERATION OF THE G600-B CPU (P/N G602)
There are several modes of operation. Reset/Power-
On Mode, Diagnostic Test Mode, Fire Detect Mode,
Shut-Off Sequence, and Alarm Sequence. Several
sequences of events occur during each mode as
listed below.
1.
Reset/Power-on
Power-on from inserting the battery or a reset
resulting from pressing the reset button cause the
same action. Immediately upon reset, the CPU board
performs 6 tests before entering Fire Detect Mode. If
any of these tests fail, the result is a slowly flashing
red indicator. If the main unit passes all 6 tests upon
reset, the result is a display of the green indictor for 2
seconds, whereupon it enters Fire Detect Mode and
the system is armed.
2.
Diagnostic Test
Pressing the test button will enter the CPU into a
diagnostic test mode. Press and release; do not hold
down. The same tests that are performed at reset are
performed during the diagnostic test mode. These
are, in the order they occur, check sensor 1, check
sensor 2, check battery, check solenoid, check for low
pressure(if so equipped), check for pull-pin presence
in the pull pin socket(see Figure 3). Upon failing any
FIGURE 3
CENTRAL PROCESSING
UNIT (CPU) CONTROL
BOARD
(P/N G602)
Continued on Next Page
BATTERY
HOLDER
Permit Number:
20-04649
