34
SECTION IX
PROCEDURE FOR FUNCTIONAL CHECK
OF REPLACEMENT COMPONENTS
Theory Of Operation:
Start the drying cycle. When the gas
burner ignites within the chosen trial for
ignition time (6-seconds), the flame sensor
detects gas burner flame and signals the
DSI module to keep the gas valve
open...as long as there is a call for heat.
The DSI module will “LOCKOUT” if the
gas burner flame is not sensed at the end
of the trial for ignition period. The trial
for ignition period will be repeated for a
total of three (3) retries/trials (the initial
try and two [2] more retries/trials). If
the flame is not sensed at the end of the
third retry/trial (inter-purge period of 30-
seconds) the DSI module will
“LOCKOUT” light emitting diode
(L.E.D. flashes).
A steady L.E.D. indicator indicates
normal operation
.
No L.E.D. indicator indicates a power or
an internal failure has occurred.
1. Johnson Controls Direct Spark Ignition (DSI) Module (G760)
Содержание MLG32PD3
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