Parameters 4-63
FlexFit – Linkageless Control – Revision 1.0
PREFERRED
UTILITIES MFG CORPORATION
PP
AA
RR
AA
MM
EE
TT
EE
RR
SS
P1.3.1 Flex SequenceS oPtIon
Menu > Advanced Settings > Flex Sequences > Flex Enable Password Level: Engineer Restricted? Yes
This determines if the ex sequence option is used. This feature gives the engineer more options related to burner ignition.
Options: Disabled: The ex sequence option is not used. The FlexFit 110 options are instead used. Gas Leak Test options
are not available.
Enabled: The ex sequence option is used. Gas Leak Test options are available.
Note If the "Flex Sequences Option" is disabled, then all other Flex Sequence options are ignored.
P1.3.2 PtFI Ign xFMr Sec
Menu > Advanced Settings > Flex Sequences > Flex PTFI MTFI Password Level: Engineer Restricted? Yes
This determines the ignition transformer's mode of operation during Pilot Trial for Ignition (PTFI). Once the FlexFit begins the ignition
sequence and servos are at their ignition positions if direct spark ignition is disabled, the ignition transformer and pilot valve outputs
are energized. A pilot ame must be proven present before the PTFI times out (10 seconds) or a lockout will occur.
Options: 5 sec: The ignition transformer is energized for the rst 5 seconds of the PTFI and deenergized for the last 5 seconds
of the PTFI. This should be selected if the ignition spark causes the scanner to detect a false ame (without fuel).
10 sec: The ignition transformer is energized throughout the PTFI.
Note "PTFI Ign Xfmr Sec" does not apply if the selected fuel's "DSI Option" is enabled.
P1.3.3 Fuel1 MtFI
Menu > Advanced Settings > Flex Sequences > Flex PTFI MTFI Password Level: Engineer Restricted? Yes
This extends the operation of the pilot ame (seconds) during fuel 1 Main Trial for Ignition (MTFI). If the pilot ame is proven, the
Safety Shutoff Valves (SSOVs) are energized. The pilot valve is then closed, and the ignition transformer is deenergized after the
duration set by this parameter. At this point, the main ame must be proven continuously or a lockout will occur. The FlexFit proceeds
to release to modulate.
Options: 5 to 15 [Default 10]
Note "Fuel1 MTFI" does not apply if "P1.3.5 Fuel1 DSI Option" is enabled.
P1.3.4 Fuel2 MtFI
Menu > Advanced Settings > Flex Sequences > Flex PTFI MTFI Password Level: Engineer Restricted? Yes
This extends the operation of the pilot ame (seconds) during fuel 2 Main Trial for Ignition (MTFI). If the pilot ame is proven, the
Safety Shutoff Valves (SSOVs) are energized. The pilot valve is then closed, and the ignition transformer is deenergized after the
duration set by this parameter. At this point, the main ame must be proven continuously or a lockout will occur. The FlexFit proceeds
to release to modulate.
Options: 5 to 15 [Default 10]
Note "Fuel2 MTFI" does not apply if "P1.3.7 Fuel2 DSI Option" is enabled.
P1.3.5 Fuel1 dSI oPtIon
Menu > Advanced Settings > Flex Sequences > Flex Direct Spark DSI Password Level: Engineer Restricted? Yes
Determines if a pilot ame is used or if direct spark ignition is used to ignite the fuel 1 main ame
Options: Disabled: The boiler uses a pilot ame to ignite the fuel 1 main ame.
Enabled: The boiler uses the ignition transformer to directly ignite the fuel 1 main ame.
P1.3.6 Fuel1 dSI MtFI Sec
Menu > Advanced Settings > Flex Sequences > Flex Direct Spark DSI Password Level: Engineer Restricted? Yes
Determines the length of operation of the ignition transformer (seconds) during fuel 1 Main Trial for Ignition (MTFI)
Options: 4 to 15 [Default 5]
Note "Fuel1 DSI MTFI Sec" does not apply if "P1.3.5 Fuel1 DSI Option" is disabled.
P1.3.7 Fuel2 dSI oPtIon
Menu > Advanced Settings > Flex Sequences > Flex Direct Spark DSI Password Level: Engineer Restricted? Yes
Determines if a pilot ame is used or if direct spark ignition is used to ignite the fuel 2 main ame
Options: Disabled: The boiler uses a pilot ame to ignite the fuel 2 main ame.
Enabled: The boiler uses the ignition transformer to directly ignite the fuel 2 main ame.
P1.3.8 Fuel2 dSI MtFI Sec
Menu > Advanced Settings > Flex Sequences > Flex Direct Spark DSI Password Level: Engineer Restricted? Yes
Determines the length of operation of the ignition transformer (seconds) during fuel 1 Main Trial for Ignition (MTFI)
Options: 4 to 15 [Default 5]
Note "Fuel2 DSI MTFI Sec" does not apply if "P1.3.7 Fuel2 DSI Option" is disabled.
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