8
IOM - THRC
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IOM
THRC HF & LF
Cleaning the Unit
1.
Periodic Cleaning of the unit may be done with a mild disinfecting soap and water solution. A 1% or 1/100 dilution of bleach
is an optional disinfectant
3
.
2.
Exterior cabinet cleaning must be performed with the unit running. Wipe the exterior of the unit with a damp sponge or
cloth, paying particular attention to the prefilter intake grille.
3
Rutala WA, APlC guideline for selection and use of disinfectants, Am J lnfect Control 1996 Aug ; 24(4): 313-42.
Prefilter Replacement
1.
The pre
-
filter should be replaced every 60 to 90 days. Regularly replacing the pre
-
filter will maximize the life of the HEPA
filter.
The
THRC
comes standard with an anti-microbial pleated pre
-
filter.
2.
Clean the unit as described in the prev
i
ous section.
THE FOLLOWING STEPS MUST BE PERFORMED WITH THE UNIT (FAN) RUNNING:
3.
Spray a mist of phenolic disinfectant such as “Amply “ or “Lysol” into the air intake grille.
4.
Remove the four (4) screws from the face of the intake grille and pull the grille out.
5.
lnsert gloved hand into a red plastic, medical waste disposal bag. Grasp the top portion of the prefilter with bagged hand
and gently pull outward. The airflow of the unit will offer a resistance to pulling the prefilter out.
6. Turn the bag inside out over the prefilter then seal the bag for containment.
7.
lnstall a new prefilter and secure the grille by following step these instructions in reverse order of removal.
CAUTION: APPROPRIATE DECONTAMINATION PROCEDURES (SEE PAGE 11) MUST BE FOLLOWED PRIOR
TO
REMOVAL OF THE ACCESS PANELS TO REPLACE THE HEPA FILTER OR OTHER PARTS. CONTACT YOUR
SAFETY OFFICE TO ASSURE IT CONFORMS TO YOUR FACILITY’S PROTOCOL.
Removal of Front and Rear Panels
1.
Remove the front access panel by taking off the screw covers and removing the four (4) screws. The front panel may now
be lifted off.
2.
Remove the 18 screws securing the rear access panel. The rear panel may now be lifted off.
Primary Filter Replacement
The CDC recommends that in any application, HEPA filters should be maintained meticulously and should be carefully installed
by adequately trained personnel wearing an appropriate respirator. A regular maintenance program should include procedures
for installation, removal and disposal of filter elements and a program to monitor the HEPA filter for possible leakage and for
filter loading.
The expected HEPA filter life should range from eighteen (18) months to two (2) years depending on the environment and
prefilter maintenance schedule.The filter indicator light will give a warning of filter loading by flickering on high speed. When
the light stays on at high speed, the prefilter should first be changed. If the light stays on after prefilter replacement, the HEPA
filter is recommended to be changed.
1.
Remove the front access panel by following the instructions under removal of front and rear panels.
2.
For
THRC
UV units, follow the steps in the below section to remove the UV Light Assembly.
3.
Remove the six (6) bolts and clamps holding the HEPA filter in place.
4.
In many cases, filters must be decontaminated before removal. See decontamination process for more information. Tilt
the top of the filter outward and slip a plastic biohazard bag over the top of the filter, and then wrap the bag over the bottom
of the filter.
5.
Seal the bag for containment.
Note:
It may be necessary to use two (2) biohazard bags to fully contain the filter.
6.
Remove the new HEPA filter from its container and install it in the reverse order of removal. Care must be taken when
handling the filter. Do not bump or squeeze the filter as this may damage the filter and render it non-effective.
Removal of the UV Light Assembly for the
THRC
UV
WARNING - Skin or eye damage may result from directly viewing the light produced by the lamp in this apparatus.
Always disconnect power before re
placing the UV
lamp or servicing. Replace lamp with lamp TUV 15W SLV,
manufactured by
Philips for
THRC
Low Flow
Replace lamp with TUV 30W SLV, manufactured by Phillips
for THRC
High Flow.
