Service Manual

Control Timings
Ignition State Timing
Pre-purge 15 Seconds
Trial for Ignition 90 Seconds
Flame Stabilization Period 3 Seconds
Inter-purge 15 Seconds
Flame Failure Response Time 1.5 Seconds (2 second maximum; 1 second minimum.)
Post-purge 15 Seconds
PS Fault Delay (failed open/close) Retry after 2 Minutes
Soft Lockout Retry after 5 Minutes
ECO Limit Lockout Indefinite (cycle power to restart)
Simulated Resistive Load Lockout Indefinite (cycle power to restart)
Hardware Error Lockout Indefinite (self clears if fault clears for at least 15 seconds)
Verify Resistive Delay Retry after 2 Minutes (repeats 5 times)
Control Timings
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UPDX Series
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