ProFire PF3100 Product Manual page 94

13.7.2 PROVE AIRFLOW STATE
The controller transitions to the Prove Airflow sub-state to energize the fan (HFV) output and ensure that
adequate airflow is detected before proceeding with the pre-purge sequence. All safety outputs are held de-
energized for the duration of the Prove Airflow sub-state.
13.7.2.1 SAFETY OUTPUT BEHAVIOR – PROVE AIRFLOW STATE
Card
PF3101-00 BMS Controller card
PF3102-00 Ion Pilot card
PF3102-01 UV Pilot card
13.7.2.2 TRANSITIONS TO THE PROVE AIRFLOW STATE
From Scenario
Request Purge
Purge position proven
Position
13.7.2.3 TRANSITIONS FROM THE PROVE AIRFLOW STATE
To Scenario
Any
Controller stopped by user
Lockout
Purge position not proven
Airflow not proven
Waiting Any
Pre-Purge Airflow has been proven
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Output
Pilot
SSV1
SSV2
Valve
Coil
Ignition Enable
Condition
No alarm or wait conditions present
Condition
Alarm condition present
Any
Any
Any
Wait condition present
No alarm or wait conditions present
PF3100 Product Manual
DOC-001149 v8.0
Output State
De-energized
De-energized
De-energized
De-energized
De-energized
Open
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