FEATURES

• Safety Features:

— Interlock check.

— Dynamic Ampli-Check™.

— Closed loop logic test.

— Dynamic input check.

— Dynamic safety relay test.

— Dynamic self-check logic.

— High Fire Purge Switch test (EC/RM7850A).

— Expanded safe-start check.

— Internal hardware status monitoring.

— Low Fire Start Switch test (EC/RM7850A).

— Tamper-resistant timing and logic.

• Ignition attempts: 1 or 5. Selectable by model number.

• Access for external electrical voltage checks.

• Application flexibility.

• Microcomputer technology allows dependable, long-term operation.

• First-out annunciation and system diagnostics provided by a 2-row by 20-column vacuum fluorescent display (VFD) located on the KDM (optional). Text readout available in English, Spanish, Portuguese, French, German, Japanese (Katakana), Chinese, and Italian languages.

• Five sequence information light emitting diodes (LEDs) with symbols for Power, Pilot, Flame, Main, and Alarm (see Fig. 1).

• Five-function Run/Test Switch.

• Interchangeable plug-in flame amplifiers.

• Non volatile memory; EC/RM7830A, EC/RM7850A retain history files and sequencing status after the loss of power.

• Remote reset (subject to application approval; optional).

• Remote mounting of KDM (subject to application approval).