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LED INDICATOR LIGHTS
The BurnerLogix ZB control module has seven (7) LED indicator lights to annunciate the operating
status of the control, as well as provide the reason for the last lockout condition. The “Open
Damper” and “Close Damper” LED's provide easy set-up of the modulating motor end switches.
Each LED has a graphic symbol to describe its function (see Table 4 ).
Table 4:
FAN
Lights when the blower motor is energized (terminal M) and flashes when the RUN/CHECK
switch is in the “CHECK” position during Purge, PTFI, MTFI and AUTO.
OPEN
DAMPER
Will blink when the modulator motor is being driven to the high fire position. (circuit 10-X
made). Once the high purge switch closes (M-8), this LED will light constant. This LED pro-
vides the status of the high fire purge interlock circuit (M-8). This LED lights anytime the M-
8 circuit closes during Prepurge, PTFI, MTFI, Post Purge.
CLOSE
DAMPER
Will blink when the modulator motor is being driven to the low fire position (circuit 10-12
made). Once the low fire switch closes (M-D), this LED will light constant. This LED provides
the status of the low fire start interlock circuit (M-D). This LED lights anytime the M-D circuit
closes during Pre-purge, PTFI, MTFI, post purge.
AUTO
Will light when the control releases to automatic modulating control (circuit 10-11 made).
IGNITION
Will blink during Pilot Trial For Ignition (PTFI). Will light constant during Main Trial For Igni-
tion (MTFI).
FLAME
Will light whenever flame is detected by the flame scanner.
ALARM
In the event of a lockout condition, the Alarm LED will blink, the remaining LED's will light up
to indicate the lockout condition. See “Safety Lockout Codes.”
Summary of Contents for BurnerLogiX BLL510
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