Ingersoll Rand ENL 10 Instruciones De Instalación Y De Servicio página 9

Switching sequence of the valve in the alarm mode.
Trouble indication via a potential-free contact
Alarm mode:
In the event that the condensate discharge is disturbed, the
valve opens after a time cycle (approx. every three seconds)
to eliminate the malfunction automatically. If the malfunction
is not eliminated after one minute, a trouble indication is
released:
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8. FuNCTION
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Possible trouble sources include:
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The ENL 10 releases a maintenance message for a service
that is to be carried out.
Depending on the operating mode, a visual maintenance
message (service) is activated which signalizes the
replacement of the service unit.
The maintenance message is indicated by the flashing
supply voltage-LED "Power".
The maintenance message is released after 2 x 8,760 h or
one million switching cycles.
The maintenance signal is released when one of these two
values is reached.
In the event of a power outage or when the energy supply is
deactivated, the status of the timer will be maintained.
The activities to be carried out regarding maintenance are
described in the chapter entitled "Check and maintenance".
Prior to the replacement of the service unit, a reset needs to
be carried out. The control unit is released by actuating the
arresting hook. When removed, the TEST button must be
pressed and held for at least five seconds.
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The alarm LED flashes
The alarm relay switches over (the signal can be picked
off potential-freely).
The valve opens every four minutes for 7. seconds.
When the malfunction has been eliminated, the ENL
10 will switch back automatically into the normal
mode.
Mistakes during installation
Dropping below the minimum pressure
Excessive accumulation of condensate (excess load)
Blocked / obstructed outlet line
Extreme amount of dirt particles
Frozen pipe work
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