Labconco Purifier Logic+ 30241 - Relay Contact #2……the “airflow error” contact

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Relay Contact #2……the “airflow error” contact
This set of contacts (dry contacts pins 1 & 2 of J3 on the electrical enclosure, and the
ORANGE wires on Labconco harness P/N 3432300) will indicate when the Logic+ has
detected an airflow error, as described by the conditions below:
Type of Logic+
unit
Alarm
Condition
LCD display
message
Airflow Error
dry contacts
Comments
All Labconco
Logic+ Cabinets
Sash out of
position
SASH TOO HIGH
No Response
Motor RPM has
shifted abruptly
AIRFLOW ALERT
Contacts shorted
HEPA Filter
approaching end
of life—20%
CHECK FILTER
(Filter life indicator
at 20% or less)
No response
HEPA Filter
approaching end
of life-10%
CHECK FILTER
(Filter life indicator
at 10% or less)
Contacts shorted
HEPA Filter end
of life- 0%
CHECK FILTER
(Filter life indicator
at 0%)
Contacts shorted
Unit beeps
approximately
every 15 seconds
**Note all
specialty Logic+
BSC’s below will
have all the
alarm conditions
listed above, plus
specific alarms
listed below”
A2 BSC with
canopy sensor**
( see above)
Canopy Airflow
incorrect
CANOPY ERROR
Contacts shorted
A2 BSC with
airflow sensor**(
see above)
Downflow Airflow
incorrect
Alarm - Airflow
Contacts shorted
B2 BSC**( see
above)
Exhaust airflow
not correct
Alarm - Inflow
Contacts shorted