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FN1AAF: Operation and Maintenance Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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General Operating Instructions
IMPORTANT:
Always lock the casters during operation.
IMPORTANT:
Make sure there are no paper or lightweight loose
objects near the floor by the unit that could be sucked into the bottom air
intake or front opening of the bottom front door. We recommend that you
regularly clean or sweep the floor around the unit to extend the life of the
pre-filter.
• Locate the control panel on the front upper left (
).
• Rock the green ON/OFF switch up to the ON position. It should
illuminate. There will be a slight delay before air begins to move as
the blower motor has a built-in 3-second operational delay.
• For the 006 and 015 models, select the fan speed desired.
• Observe the unit running for a short time to make sure there are no
unusual noises, that air is freely flowing through the transition plate
(and diffuser or ducting if applicable), and the unit is not shifting
position. Make sure the casters are locked!
A200222
Fig. 6 – Control Panels
Routine Maintenance
Daily
Inspect the unit:
• power cord is not broken, frayed or worn, and the plug is fully
engaged at the wall outlet
• casters are locked
• red filter/obstruction indicator is not illuminated
• unit operates without excessive vibration or unusual noises
• flexible exhaust ducting (if used) is not kinked or damaged, and
securely attached at both ends
Cleaning
Routinely clean any dust and contaminants from the exterior of the unit
and power cord with a mild cleaner. Do not use excessive liquid.
Decontaminate as necessary with a facility- and EPA-approved
disinfectant.
Filter Replacement
NOTE:
Before replacing filters, check to make sure there is nothing
impeding the airflow into the unit. Check under the unit for paper,
rubbish, etc., that may be trapped on the intake side.
IMPORTANT:
Please ensure motor is set to max speed when relying on
the filter indicator light to indicate time for filter change.
NOTE:
If your facility has a procedure in place for replacing filters,
follow your procedure. If guidance is needed, use these instructions.
Pre-Filter
The pre-filter should generally be replaced every 60 to 90 days.
When the red indicator light on the front panel is illuminated, the most
likely reason is that the pre-filter is clogged and needs to be replaced.
Proceed as follows (
):
1. Rock the green the power switch down to the OFF position.
2. Unplug the unit from the wall outlet.
3. Listen to make sure the blower wheel has stopped spinning, and
remove the bottom front door.
4. Put on Personal Protective Equipment.
5. Slide the pre-filter out of the cabinet and immediately put it inside
an approved containment bag. Dispose per facility guidelines for
hazardous materials.
6. Replace the pre-filter with the same type and size (minimum
MERV 7). The air-flow arrows on the filter
must
point up.
7. Replace the bottom front door.
8. Plug in the unit and rock the power switch up to the ON position.
The red indicator light should extinguish within a few seconds. If it does
not, then the HEPA filter needs to be replaced.
HEPA Filter
The HEPA filter, when used in a negative air machine, is rated for
approximately 40,000 hours of operation, or 4 years, under normal
conditions and with recommended replacement of the pre-filter (air
scrubber use will reduce filter life). If the red indicator light is
illuminated, and did not extinguish after replacing the pre-filter, then the
next step is to replace the main HEPA filter. For residential use, call your
dealer to do this procedure. For healthcare facilities, follow these steps
(
):
1. Move the power switch to the OFF position.
2. Unplug the unit from the wall outlet.
3. Listen to make sure the blower wheel has stopped spinning. Lay the
unit on its back. Remove both the upper and lower doors.
4. Put on Personal Protective Equipment.
5. Remove the pre-filter from the unit.
6. Use a 1/2-inch open-end or adjustable wrench to remove the two
front bottom nuts from the all-thread rods on both sides.
7. Loosen, but do not remove, the back bottom nuts.
8. Slide the bottom HEPA filter supports down, and pull the two front
all-thread rods upwards to get them out of the way of the filter
removal.
9. Remove the HEPA filter and immediately put it inside an approved
containment bag. Dispose per facility guidelines for hazardous
materials.
CAUTION
!
PERSONAL PROTECTION
Consider the filters contaminated. Wear appropriate Personal Protective
Equipment (gown, gloves, respirator, etc) when changing filters, and
seal them in plastic bags for disposal. Refer to ASHRAE “Guidance for
Building Operations During the COVID-19 Pandemic” —
https://www.ashrae.org/news/ashraejournal/guidance-for-building-oper
ations-during-the-covid-19-pandemic
005
006 / 015
WARNING
!
MOVING PARTS & SHARP EDGES HAZARD
Failure to follow this warning could result in personal injury.
Do not place objects on top of the discharge plenum.
Keep hands and face away.
Avoid rotating blower wheel which can cause serious injury.
Wear gloves when handling.