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EXPLANATION OF LOGSTAT
LOGSTAT is an indication of what logic module the control is currently operating in during its cycle and is used
for diagnostic purposes only. If a lockout occurs the current value of LOGSTAT is stored as part of the lockout
information. The message displayed corresponds to the current logic module.
Table 24: LOGSTAT
1/2 second period after operating control closes when blower motor is energized
Open Damper Purge or waiting for air flow and/or high fire switch to close
Pilot Trial for Ignition for YP3XX programmers
If PTFI is greater than 5 seconds and early spark termination is not needed
If PTFI is greater than 5 seconds and early spark termination is needed
Main Trial for Ignition with terminal 5 de-energized
On YP138 programmer, hold for 20 seconds with terminals 6 and 7 energized
On YP138 programmer, when terminal 21 first energized, wait for M-D to close
Post Purge period if flame fail lockout
Idle state if unit is in lockout
On YP148/YP184 programmer, VP Pre-Check State, wait for M-8 damper switch
and 3-P running interlock to close. Once running interlock is proven, hold the
state for 5 seconds before moving to next state
On YP148/YP184 programmer, VP Evacuation Start State, with terminal 7
energized
On YP148/YP184 programmer, VP Evacuation Test State, with terminal 7 de-
energized and check for terminal 23 VPS input for active low
On YP148/YP184 programmer, VP Pressurization Start State, with terminal 6
energized
On YP148/YP184 programmer, VP Pressurization Test State, with terminal 6
de-energized and check for terminal 23 VPS input for active high
Logstat represents the current software module the BurnerLogix is currently executing.
The BurnerLogix outputs the current displayed message as well as the historical lockout
messages as numbers. The table below correlates the message number with the actual
displayed text message.
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