I have a YPAL090H, 90 Ton RTU. During warmer days, but not limited to them, I receive daily system safety lockout faults and shuts down the compressors stages.
Please, can someone explain what safety lockout faults that are tripping the unit off and why.
I know that there needs to be 3 trips for this to occur. Thank you in advance.
could you give more detail this unit has amicro panel or does it have to be acessed thru ahandheld programmer is it airside related?
thank you heaviwall:
It has a micro panel at the unit, i'm not sure what airside related is.
If it is airflow, i am receiving from both OA & RA dampers.
Is there something that I should look at at the micro panel?