© 2023 Carrier 20
LED INDICATOR LIGHTS
The BurnerLogix YB control module has seven (7) LED indicator lights. These annunciate the
operating status of the control and 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 14).
Table 14: LED INDICATORS
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.
Blinks 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 stays lit. This LED provides 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.
Blinks 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 stays lit. 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.
Lights when the control releases to automatic modulating control (circuit 10-11 made).
Blinks during Pilot Trial for Ignition (PTFI). Stays lit during Main Trial for Ignition (MTFI).
Lights whenever flame is detected by the flame scanner.
Alarm LED blinks during lockout. The remaining LED's indicate the lockout condition. See “Safety Lockout Codes.”
Note:
For YP148/YP184 programmers,
during VP Evacuation sequencing, the Blower LED shall remain constant,
and the rest of the LED’s move in upward direction.
For YP148/YP184 programmers, during
VP Pressurization sequencing, the Blower LED shall remain constant,
and the rest of the LED's move in downward direction.
To Next Page
Loading...
Need help?
General
