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If the room air filtration units are being used to create and maintain a negative/positive pressure condition, the
pressure differential between the negative/positive room and the environment outside the room should be
monitored with a calibrated instrument as per OSHA/CDC requirements. The Abatement Technologies Portable
Pressure Monitors are recommended to ensure that requirements are being met.
Important Note:
Do not operate the unit unless the pre-filter(s) and HEPA filter are installed and the filter access
door and panel are in place and closed.
CONTROL PANEL
1. Speed Control Switch. Serves as the power switch
and provides a variable adjustment to the speed of the
motorized impeller.
2. Power Indicator. Green light that indicates speed
control switch is “ON” and unit is connected to power
source.
3. Hour Meter. Provides a count of the total operating
hours.
4. Filter Change Indicator – Pre-filter. Amber light that
indicates excessive restriction on air intake or loading
of the filter(s) and that filter change procedures should
be followed.
Note
: Check the filter loading indicators when the unit
is operating on “HIGH” speed.
5. Filter Change Indicator – HEPA. Amber light that
indicates excessive restriction on air exhaust or
loading of the HEPA filter and that filter change
procedures should be followed.
6. Circuit Breaker. 12 amp circuit breaker that provides
protection for the unit’s electrical components.
7. GFCI Receptacle. Electrical safety device that will trip
and stop the flow of electricity if leakage of current is
detected from the unit or an electrical device plugged into the GFCI receptacle. The PRED1200 plugged into
a 120 V/15 A electrical power supply can supply a total of 7 amps of electrical power for additional equipment
that is connected to the GFCI receptacle. Do not exceed this 7 amp limit.
Note
: If the equipment connected to the GFCI receptacle draws more than a total of 7 amps, the circuit breaker
on the control panel and/or the building breaker will trip. This condition can be remedied only by reducing the
total amperage draw.
Note:
Unit is equipped with a hardwired 25 ft 14/3 AWG SJTW power cord for connection to an electrical outlet.
DAISY CHAINING
“Daisy Chaining” refers to the operation of multiple units on one circuit, with only one of the units plugged into a
120 V/15 A electrical power supply receptacle. Each subsequent unit is plugged into one of the GFCI receptacles
on the prior unit, up to the maximum number allowed based on the amperage draw per unit. The National
Electrical Code limits the total amperage draw of devices operating on one circuit to 80% of full load, which
means that the total amperage draw on a 120 V/15 A circuit, including the unit plugged into the building electrical
power supply receptacle, must not exceed 12 amps.
A total of
three
PRED1200 units, including the unit plugged into the building electrical power supply receptacle,
can be “Daisy Chained” on a 15 amp circuit.
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