NuAire Allergard A Series, Operation And Maintenance Manual, Page: 23 / 37

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191
ATTENTION ACCOMPANY'S
INFORMATION OR IMPORTANT
SYMBOL POTENTIAL ELECTRICAL
HAZARD ONLY QUALIFIED
PERSON TO ACCESS
188
7.0 General Maintenance
CAUTION: A qualified technician who is familiar with the proper maintenance procedures required for this
equipment, as well as repair must perform all maintenance actions on this equipment.
7.1 Decontamination
No maintenance should be performed on the interior of the Allergard cabinet (area behind access panels) unless
the cabinet has been microbiologically decontaminated, is known to be biologically clean, or know to be
chemically inert.
If microbiological decontamination is necessary, use the following procedure:
1. Place decontamination equipment inside the work area. Reference decontamination procedure (per
NSF Standard 49, Annex G or En 12469:2000, Annex J), using the following chart to calculate chemical
requirements.
Model NU-608-400E
Cabinet Dimensions
52.675 x 32.875 x 84.25 in.
To
52.675 x 32.875 x 82.25 in.
(1337 x 833 x 2140 mm)
To
(1337 x 833 x 2342 mm)
Blower cabinet dimensions
22 x 46.5 x 17 in.
(.56 x 1.2 x .43m)
Total cabinet volume
76.cu.ft.
(2.15cu.m)
2. Seal entire unit to floor using plastic and tape.
Allow access to cabinet power cord to operate fan during decontamination procedure.
CAUTION: BE SURE CABINET IS TOTALLY SEALED TO PREVENT ANY
LABORATORY EXPOSURE TO DECONTAMINATION GAS
.
3. Perform decontamination procedure per NSF Standard 49, Annex G or En 12469:2000, Annex J.
7.2 LED Lamp Replacement
The LED lamp is cool white placed external to the cabinet to aid maintenance. The life rating of the lamp is
50,000 hours. The lamp is removed by displacing to one side against the compressible lamp holder.
7.3 Filter Replacement
7.3.1 The HEPA filters under normal usage and barring an accident do not need replacement until the work
access inflow velocity cannot be maintained (see Section 7.5). Sorbent filters need to be replaced when
they no longer contain odors.
!