American Dryer Corp. Phase 5 Microprocessor AD-170 - Manual (Page 12)

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B. Control Box
Lifting the control door and opening the computer panel
will reveal the control box. Inside the control box are
ALL the electronic control components. Located on
the back of the control box are the 30-position block,
fuse block, and transformer.
C. DSI Module (Gas Models Only)
The (DSI) Direct Spark Ignition system consists of a
microprocessor-based control module, along with an
ignitor/flame-probe assembly. This control utilizes a
high voltage synchronous spark ignitor and a rectified
flame sensor/probe signal to locally control ALL basic
functions in the gas burner.
SECTION IV
Description of Parts
A. Computer Panel Assembly
The computer panel assembly on the AD-170 consists
of a phase 5 computer board a keypad label. The
keypad inputs your selections into the computer and the
computer board directs all the functions of the dryer.