NuAire AllerGard NU-620-300 Manual

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AllerGard™ ES Energy Saver Containment
Small Animal Transfer Station
Models
NU-620-300/400/500
NU-620-301/401/501
Operation & Maintenance Manual
June, 2019
Revision 5
Series 5
Manufactured By:
NuAire, Inc.
2100 Fernbrook Lane
Plymouth, MN 55447
Toll-Free: 1-800-328-3352
In Minnesota: (763)-553-1270
Fax: [phone]

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About this Operation and Maintenance Manual
The information contained in this manual is intended to reflect our current production model along
with the more frequently purchased options. Any unique additions, modifications, or shop drawings are
appended in the back flap of this manual, along with any modifications and/or additions to procedures as
outlined in this manual. A copy of the original factory test report is also appended to this manual. In case this
manual and/or test report is lost or misplaced, NuAire retains a copy in our files. A replacement copy can be
obtained by calling or writing NuAire, Inc. stating the model number and serial number and a brief description
of the information desired.

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AllerGard™ ES Energy Saver Containment
Small Animal Transfer Station
Models
NU-620-300/400/500
NU-620-301/401/501
Operation & Maintenance Manual
Table of Contents
Section No. 1 ..............................................................................General Description
Section No. 2 ..............................................................................Models & Features
Section No. 3 ..............................................................................Warranty
Section No. 4 ..............................................................................Shipments
Section No. 5 ..............................................................................Installation Instructions
Section No. 6 ..............................................................................Operating the NU-620
Section No. 7 ..............................................................................Operating Guidelines
Section No. 8 ..............................................................................General Maintenance
8.1…………………………………………. ..........................................Preventative Maintenance
8.2 .......................................................................................LED Lamp Replacement
8.3 .......................................................................................HEPA Filter Replacement
8.4 .......................................................................................Motor Blower Replacement
8.5 .......................................................................................Airflow Control System Setup
8.6 .......................................................................................Airflow Calibration
8.7.......................................................................................Filter Integrity Check
8.8.......................................................................................PresurFlow™ Alarm Set Points
8.9.......................................................................................Decontamination
Section No. 9 ..............................................................................Polycarbonate Material Compatibility
Section No. 10 ............................................................................Error Indicators, Troubleshooting & Option
Parameters
Section No. 11 ............................................................................Remote Contacts
Section No. 12 ............................................................................Electrical/Environmental Requirements
Section No. 13 ............................................................................Disposal and Recycle
Section No. 14………………………….................................................PM Checklist
Manual Drawings
BCD-16818 .................................................................................620-30X Specification Drawing
BCD-16819 .................................................................................620-40X Specification Drawing
BCD-16820 .................................................................................620-50X Specification Drawing
BCD-16521 .................................................................................Front Panel
Electrical Schematic
BCD-16821 .................................................................................620-30X/40X/50X Electrical Schematic

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AllerGard™ ES Energy Saver Containment
Small Animal Transfer Station
Models
NU-620-300/400/500
NU-620-301/401/501
MANUFACTURED BY:
NuAire, Inc. - Plymouth, Minnesota, USA
1.0 General Description
The NuAire AllerGard™ ES Energy Saver Containment Small Animal Transfer Station Model NU-620 is a station whose
unique configuration offers the benefits of vertical HEPA filtered airflow for product protection on the worksurface. In
addition, the NU-620 provides improved allergen personnel protection by incorporating a HEPA filtered down draft vacuum
on the worksurface to assure minimal exposure to animal hair/dander as well as cage bedding material. However, the
NuAire Model NU-620 should not be used as a substitute for a Class II, Type A2 Biosafety Cabinet (BSC). The NU-620 is
not a containment device for airborne particulate in low to moderate risk-hazard research as prescribed by the CDC/NIH
Biosafety in Microbiological and Biomedical Laboratories.
The NU-620 design and basic airflow pattern is illustrated on the specification drawing. The NU-620 design incorporates
two impeller/blowers, both a supply and exhaust, each with its own associated HEPA filter providing excellent system
function and maximum filter loading capacity. The designed airflow pattern, being a single pass system, also eliminates any
heat buildup within the workzone. The airflow pattern starts with the supply prefilter located on top of the station. The
airflow continues through the supply impeller/blower and forced into the supply HEPA filter providing 99.99% particle
removal at 0.3 micron. The airflow continues to move in a uniform vertical downflow pattern providing particulate-free air
in the workzone.
NuAire offers two window configurations being either dual access or single access. The dual access design along with the
work surface configuration allows the greatest access while maintaining work zone sterility and improved allergen
protection. The single access design meets BSC containment performance levels for personnel and protection.
The downdraft HEPA filter provides 99.99% particle removal at 0.3 micron and is located under the worktray in its own
impeller/blower/filter cabinet. As the air is pulled from the worktray, through the prefilter and into the blower, the air then
passes through the downdraft HEPA filter and is exhausted back to the room providing improved allergen personnel and
environmental protection.

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1.1 Safety Instructions
These safety instructions describe the safety features of the AllerGard™ ES Energy Saver Small Animal Transfer
Station Model NU-620. The station has been manufactured using the latest technological developments and has
been thoroughly tested before delivery. However, the station may present potential hazards if it is not installed
and used as instructed for its intended purpose or outside of operating parameters. Therefore, the following
procedures must always be observed:
•The station must be operated only by trained and authorized personnel.
•For any operation of this unit, the operator must prepare clear and concise written instructions for
operating and cleaning, utilizing applicable safety data sheets, plant hygiene guidelines, and technical
regulations, in particular.
oWhich decontamination measures are to be applied for the station and accessories?
oWhich protective measures apply while specific agents are used?
oWhich measures are to be taken in the case of an accident?
•Repairs to the device must be carried out only by trained and authorized expert personnel.
•Keep these operating instructions close to the station so that safety instructions and important information
are always accessible.
•Should you encounter problems that are not detailed adequately in the operating instructions, please
contact your NuAire Representative of NuAire technical Services.
1.2 Explanation of Symbols
Safety alert symbol indicates a potentially hazardous
situation which, if not avoided, could result in death of
serious injury.
Safety alert symbol indicates a potentially hazardous
situation which, if not avoided, may result in minor or
moderate injury.
WARNING
!
CAUTION
!
CAUTION used without the safety alert symbol indicates a potentially
hazardous situation which, if not avoided, may result in property damage.
Potential electrical hazard, only qualified person to access.
Note: Used for important information.
Biohazard
Ground, Earth
CAUTION

Chemical Hazard
Flammable Hazard
Hazardous Gases! Personal
Protection Equipment Required.
Lead Free

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2.0 Models & Features
The Model NU-620 AllerGard™ ES Energy Saver Containment Small Animal Transfer Station
is manufactured in 3 sizes:
Dual Sided
Single Sided
620-300
3 ft. (.91m)
620-301
3 ft. (.91m)
620-400
4 ft. (1.2m)
620-401
4 ft. (1.2m)
620-500
5 ft. (1.5m)
620-501
5 ft. (1.5m)

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3.0 Warranty
Details regarding product warranties can be found in the published warranty data separate from this manual and included
Within the data packet sent with the unit.
4.0 Shipments
NuAire takes every reasonable precaution to assure that your ALLERGARD™ ES ENERGY SAVER CONTAINMENT SMALL
ANIMAL TRANSFER STATION arrives without damage. Motor carriers are carefully selected and shipping cartons have been
specially designed to insure your purchase. However, damage can occur in any shipment and the following outlines the
steps you should take on receipt to be sure that if damage has occurred, the proper claims and actions are taken
immediately.
4.1 Damaged Shipments
4.1.1 Terms are factory, unless stated otherwise. Therefore, it is important to check each shipment before acceptance.
4.1.2 If there is visible damage, the material can be accepted after the driver makes a notation on the consignee's copy
of the freight bill. Then an inspection must be made to verify the claim against the carrier. This inspection is the
basis of your filing the claim against the carrier.
4.1.3 If concealed damage is found, it is absolutely necessary to NOTIFY THE FREIGHT AGENT AT ONCE, and request an
inspection. Without this inspection, the transportation company may not accept a claim for loss or damage. If the
carrier will not perform the inspection, an affidavit must be prepared stating that he was contacted on a certain
date and that he failed to comply with the request. This along with other papers in the customer's possession will
support the claim.