12
LF400 - NLFREN - v1.0 - 13072016
EN
MACH
5.3 Resettable circuit breaker
The 12 amp thermal response resettable circuit breaker protects the unit and devices connected to its duplex GFCI outlet.
The circuit breaker is designed to sense the total current draw through the circuit. The circuit breaker “trips” when more than 12
amps of electrical current are drawn through the device’s power cord. Should an over-current condition occur, the air scrubber
on-board circuit breaker prevents nuisance visits to a remote power junction box.
IMPORTANT!
Total amperage of the air scrubber plus all devices plugged into the receptacle must not exceed 12
amps. The circuit breaker will not allow for loads in excess of 12 amps, although there is a time
delay before the overloaded circuit is broken.
IMPORTANT!
When the air scrubber is plugged into a standard powered wall outlet the air scrubber duplex
outlet is electrically “HOT” and AC voltage is present.
5.4 GFCI protection and the on-board duplex VAC outlet
The standard AC voltage outlet GFCI (ground fault circuit interrupter) protection promotes operator safety in wet applications.
GFCI devices trip when a fault to electrical ground is sensed.
It is recommended to check the GFCI protection prior to operation. To check, push the “TEST” button located on the GFCI
duplex outlet. If operating properly the “RESET” button on the GFCI outlet will pop out. A tripped GFCI is indicated by a small
LED. The device can only be “RESET” when the air scrubber is connected to a wall outlet providing standard voltage. This
duplex AC outlet allows the inter-connection of other AC powered devices. The sum total amperage of all devices plugged into
the receptacle must not exceed 10 amps.
5.5 Servicing
Before each use inspect for damage, blocked inlet or outlet.
Inspect the GFCI to ensure it is not a “tripped” condition. Push “RESET” to reset the GFCI.
When the air scrubber is first turned on, check for excessive vibration. If the unit vibrates excessively or if impeller rubs on
housing, turn off the unit immediately. Have a service technician inspect the unit to locate the problem.
6 Maintenance
WARNING!
Use extreme caution when changing the HEPA filter as hazardous material could be trapped in
the media. Always make sure to dispose of filters in the appropriate way. If you are unsure of
how to safely dispose of any filter, consult an industrial hygienist to ensure that all hazardous
materials are contained and disposed of properly.
6.1 Air filters
The standard air scrubber HEPA system is equipped with two filters that progressively filter out smaller particles. An optional
activated carbon/potassium permanganate filter can be also added. These filters must be checked regularly. Operating the unit
with dirty filters will reduce the airflow, but will do no harm to the unit. The unit can be run indefinitely with dirty filters.
The two standard filters used are listed below (as installed in the unit from top to bottom):
•
25 to 30% efficient MERV-7 pleated fabric pre-filter,
•
99.97% DOP efficient HEPA filter.
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