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DIRECT DRIVE BLOWER SEQUENCE OF OPERATION / TROUBLESHOOTING
Blower Operation:
1 -
2 -
to the Failure Handling/Troubleshooting section.
3 -
4 -
Blower Fault Sequence Direct Drive Motor - No S52:
1 - Line voltage is provided to B3 blower motor.
2 - After 10 seconds, the B3 blower motor internal relay does not close.
3 -
4 - If B3 blower motor internal relay closes continue to next step.
6 - During B3 blower motor operation, the internal motor relay opens.
7 -
1 -
2 -
3 -
4 -
Failure Handling/Troubleshooting:
1 - Follow TABLE 13 to troubleshoot possible failures that would cause Alarm 186 to set.
2 -
3 -
4 -
Observe if the blower operates or if Alarm 186 sets again.
6 - If blower does not operate and Alarm 186 is set again, blower assembly must be replaced.
7 - If blower assembly does operate, wait a minimum of 30 minutes to ensure Alarm 186 is not set again.
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