A.O. Smith Boiler 3400 User Manual

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of 83
 
75
CODE DESCRIPTION
571 Heat exchanger high limit response was invalid
572 Heat exchanger high limit was exceeded
573 Heat exchanger high limit wasn't allowed due to
stack limit setting
574 Heat exchanger high limit wasn't allowed due to
stack connector setting
575 Heat exchanger high limit delay was not
congured for recycle response
Pump Errors
576 CH pump output was invalid
577 DHW pump output was invalid
578 Boiler pump output was invalid
579 Auxiliary pump output was invalid
580 System pump output was invalid
581 Mix pump output was invalid
582-589 RESERVED
DHW Plate Heat Exchanger Errors
590 DHW plate preheat setpoint was invalid
591 DHW plate preheat ON hysteresis was invalid
592 DHW plate preheat OFF hysteresis was invalid
593 Tap detect degrees was out of range
594 Tap detect ON hysteresis was invalid
595 Inlet - DHW tap stop degrees was out of range
596 Outlet - Inlet tap stop degrees was out of range
597 DHW tap detect on threshold was invalid
598 DHW plate preheat detect on threshold was invalid
599 DHW plate preheat detect off threshold was invalid
CODE DESCRIPTION
527 Mix circulator sensor was invalid
528 Mix ow control was invalid
529 Mix temperature was invalid
530 Mix sensor was invalid
531 Mix PID setpoint was invalid
532 STAT may not be a Mix demand source when
Remote Stat is enabled
533-539 RESERVED
540 Delta T inlet/outlet enable was invalid
541 Delta T exchanger/outlet enable was invalid
542 Delta T inlet/exchanger enable was invalid
543 Delta T inlet/outlet degrees was out of range
544 Delta T exchanger/outlet degrees was out of range
545 Delta T inlet/exchanger degrees was out of range
546 Delta T response was invalid
547 Delta T inversion limit response was invalid
548 Delta T rate limit enable was invalid
549 Delta T exchanger/outlet wasn't allowed due to
stack limit setting
550 Delta T inlet/outlet limit was exceeded
551 Delta T exchanger/outlet limit was exceeded
552 Delta T inlet/exchanger limit was exceeded
553 Inlet/outlet inversion occurred
554 Exchanger/outlet inversion occurred
555 Inlet/exchanger inversion occurred
556 Delta T exchanger/outlet wasn't allowed due to
stack connector setting
557 Delta T inlet/exchanger wasn't allowed due to
stack limit setting
558 Delta T inlet/exchanger wasn't allowed due to
stack connector setting
559 Delta T delay was not congured for recycle
response
T Rise Errors
560 Outlet T-rise enable was invalid
561 Heat exchanger T-rise enable was invalid
562 T-rise degrees was out of range
563 T-rise response was invalid
564 Outlet T-rise limit was exceeded
565 Heat exchanger T-rise limit was exceeded
566 Heat exchanger T-rise wasn't allowed due to stack
limit setting
567 Heat exchanger T-rise wasn't allowed due to stack
connector setting
568 Outlet T-rise wasn't allowed due to outlet
connector setting
569 T-rise delay was not congured for recycle
response
Heat Exchanger High Limit Errors
570 Heat exchanger high limit setpoint was out of
range

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