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Updx series, Control timings – Bradford White UPDX2-75T6FRN User Manual

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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

8

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