MAXIDRY MAXI200, Руководство по установке, Страница: 72 / 78

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SECTION X
PROCEDURE FOR FUNCTIONAL CHECK
OF REPLACEMENT COMPONENTS
1. For Models with Direct Spark Ignition (DSI) Module (Type I)
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.] diagnostic indicator flashes).
A steady L.E.D. indicator indicates normal operation.
No L.E.D. indicator indicates a power or an internal failure has occurred.
2. For Models with DSI Module (Type II)
Theory of Operation:
Start the drying cycle. When the gas burner ignites within the chosen
trial for ignition time (8-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” (a red L.E.D. diagnostic
indicator will flash).
An unlit red L.E.D. diagnostic indicator indicates normal operation.
A lit green L.E.D. diagnostic indicator indicates dryer controller is calling for heat and that ALL interlocks have
been satisfied.