NuAire NU-620E Dual Sided Animal Transfer Station Instruction Manual

NuAire NU-620E Dual Sided Animal Transfer Station

Specifications

• Product Name: ALLERGARDTM ES ENERGY SAVER CONTAINMENT SMALL ANIMAL TRANSFER STATION
• Model: NU-620E/621E
• Power Requirement: 230 VAC
• Manufacturer: NuAire, Inc.
• Address: 2100 Fernbrook Lane Plymouth, MN 55447
• Contact: Toll-Free: 1-800-328-3352, In Minnesota: (763)-553-1270, Fax: (763)-553-0459

Product Usage Instructions

1. Installation Instructions:

Follow the provided installation instructions carefully to set up the containment station securely.

2. Operating the NU-620:

Ensure the AeromaxTM Control System is functioning correctly before use. Refer to the manual for detailed operating instructions.

3. Operating Guidelines:

Follow the operating guidelines outlined in the manual to ensure safe and efficient use of the transfer station.

4. General Maintenance:

Regularly perform maintenance tasks as described in the manual to keep the station in optimal condition.

5. Polycarbonate Material Compatibility:

Refer to the compatibility section to understand which materials are safe to use with the station.

6. Error Indicators, Troubleshooting & Option Parameters:

Learn about error indicators, troubleshooting steps, and option parameters to address any issues that may arise during operation.

7. Remote Contacts:

Understand how to utilize remote contacts for specific functions as described in the manual.

FAQs

• Q: What should I do if I encounter an error indicator?
  • A: Refer to section 10.0 of the manual for information on error indicators, troubleshooting steps, and option parameters to resolve the issue.
• Q: How often should general maintenance be performed?
  • A: Regular maintenance should be performed as outlined in section 8.0 of the manual to ensure optimal performance of the transfer station.

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ALLERGARDTM ES ENERGY SAVER CONTAINMENT SMALL ANIMAL TRANSFER STATION
NU-620E/621E
OPERATIONS & MAINTENANCE MANUAL
OM0308
Revision 3 January 2024
(230 VAC ONLY)
Manufactured By: NuAire, Inc.
2100 Fernbrook Lane Plymouth, MN 55447 Toll-Free: 1-800-328-3352 In Minnesota: (763)-553-1270 Fax: (763)-553-0459

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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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AllerGardTM ES Energy Saver Containment Small Animal Transfer Station Models NU-620-300E/400E/500E NU-621-300E/400E/500E Manufactured By:
NuAire, Inc. – Plymouth, Minnesota, USA

General Description

The NuAire AllerGardTM 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 work zone. 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 work zone.
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 AllerGardTM ES Energy Saver Containment 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.
o Which decontamination measures are to be applied for the station and accessories? o Which protective measures apply while specific agents are used? o Which 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

Symbol

Explanation

Safety alert symbol indicate a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

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 qualitied person to access

Biohazard

Ground, Earth Lead Free Flammable Hazard

Hazardous Gasses! Personal Protection Equipment Required.

Chemical Hazard

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Models & Features

The Model NU-620E AllerGardTM ES Energy Saver Containment Small Animal Transfer Station is manufactured in 3 sizes:

Dual Sided

620-300E

3 ft. (.91m)

620-400E

4 ft. (1.2m)

620-500E

5 ft. (1.5m)

Single Sided

621-300E

3 ft. (.91m)

621-400E

4 ft. (1.2m)

621-500E

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.

Shipments

NuAire takes every reasonable precaution to ensure that your ALLERGARDTM ES ENERGY SAVER CONTAINMENT SMALL ANIMAL TRANSFER STATION arrives without damage. Motor carriers are carefully selected and shipping cartons have been specially designed to protect 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.

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Installation Instructions

5.1 Location
The NU-620 Station can be located anywhere within the animal facility. However, for maximum product protection, the station should be used away from laboratory personnel traffic lanes, air vents (in or out), doors, and/or any other source of disruptive air currents.
If drafts or other disruptive air currents exceed the downflow velocity of the station through the access opening, the potential exists for contaminated room air to enter the work zone. Remember: Always use proper laboratory techniques.
5.2 Set-Up Instructions
Remove outer shipping protection (carton or crating). The station is fastened to the base skid and it is usually the best procedure to leave the skid in place until the station is located in its approximate position to facilitate ease in handling. It can be disconnected from the skid by removing the brackets, bolts, and screws holding the station to the skid, then remove the screws to disconnect the ends of the skid.
The station has two on-site items required for the adjustable base to function.
After the cable ties have been removed and the power cable is plugged in for the unit. The NU-620 can be raised onto its lift system and rolled away from the end of the skid. It will take 5-10 seconds of holding the UP bottom for the lift to begin to move for the first time.
5.3 Plumbing Services
Typically, the NU-620 is not provided with plumbing services. In special cases, ground key cocks, needle valve cocks, or customer specified watering system hardware can be added. If ground key cocks are added, the type of service would be specified by the removable button on the handle. The ground key cocks are not recommended for pressure over 30 psi (2.0 BAR). Reducing valves should be installed external to the station if necessary. Ground key cocks should never be used for oxygen service. A special needle for oxygen service is required and available upon request.
External connection is to 3/8 inch NPT coupling in the inner sidewalls. Plugged clearance holes in the outer sidewalls are provided for easy access to the inner couplings via a NPT nipple. Connection to plant utilities should be made with proper materials for the individual service and according to national and/or local codes. It is not recommended that flammable gases be used in the station. However, if flammable gas is used, emergency shut-off valves should be located in an accessible area external to the station. Observe all labels pertaining to the type of service and operating pressure.
THIS UNIT HAS NOT BEEN EVALUATED FOR USE WITH FLAMMABLE, TOXIC OR EXPLOSIVE SUBSTANCES. USE AT YOUR OWN RISK.

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5.4 Electrical Services
The NU-620 is provided with an electrical power cord. The station requires 230 VAC, 50/60 Hz single phase power and is recommended to be on its own branch circuit, protected with a 15 Amp circuit breaker at the distribution panel.
NOTE: THIS UNIT CONTAINS ELECTRONIC BALLASTS FOR FLUORESCENT/LED LIGHTING. ELECTRONIC BALLASTS OPERATE WITH HIGH INRUSH CURRENT. IT IS NOT RECOMMENDED TO USE THIS PRODUCT WITH GROUND FAULT INTERRUPTERS (GFCI’S) BECAUSE THE BALLASTS MAY CAUSE THE GFCI TO TRIP.
5.5 Certification
After installation and prior to use, NuAire recommends that the station be recertified to factory standards. At a minimum, the following tests should be performed (see Section 8.5).
1. HEPA Filter Integrity/Housing & Frame Leak Test 2. Downflow Air Velocity Measurement 3. Exhaust Motor/Blower Setup
It is recommended that these tests be performed by a qualified technician who is familiar with the methods and procedures for certifying Biosafety Cabinets.
After the initial certification, NuAire recommends that the station be recertified at a minimum on an annual basis and after every filter change or maintenance action or any time the operator feels it is necessary. Note that NuAire Animal Transfer Stations provide premium performance and superior reliability. However, protection of personnel and products is of utmost importance and it is highly recommended that certifications are completed as stated to ensure consistent conformance to factory standards

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AllerGardTM ES Energy Saver Containment Small Animal Transfer Station
Models NU-620-300E/400E/500E NU-621-300E/400E/500E

Model Number

NU-620-300E NU-621-300E Nominal 3 foot (0.9m)

Performance Specifications NU-620 Product / Personnel NU-621 Product / Personnel

ISO 4 / Improved Allergen ISO 4 / NSF/ANSI 49

Diffuser for Air Supply (Metal)
Supply Filter-99.99% Eff. on 0.3 microns Exhaust Filter-99.99% Eff. on 0.3 microns

Non-flammable Neoprene, Spring-loaded

Fumigation : per NIH/NSF Procedures
Standard Services: Duplex Outlet

Yes One Sidewall

Optional Services: Gas Cocks 3/8″ NPT
Optional Services: Folding Shelf (Either Side)
Cabinet Size Inches (mm): Height (Fully Assembled, minimum) Height (Fully Assembled, maximum) Height (Minimum for Transport without
Castors)
Width (with handles) Depth
Work Access Opening Inches (mm): Standard Opening Height
Work Zone Inches (mm): Height Width Depth

Up to 3 ea. Sidewall
14 (355) X 30 (762)
80 ½ (2045) 92 ½ (2350) 75 (1905)
48 (1220) 30 5/8 (777)
14 (356)
25 ½ (648) 36 5/8 (929) 28 ¼ (718)

Viewing Window Inches (mm): Heat Rejected, BTU, Per Hour

Polycarbonate 785

Electrical: Volts, AC 50/60 Hz +Amps: Blower/Lights Amps: Duplex Rated Amps: 20 ft. (6.09m) Power Cord
Crated Shipping Weight:*** Net Weight

CE 230 3.0 3 8 Cord Reel-15A
480 lbs. /218 kg. 430 lbs. /195 kg.

Model Number NU-620-400E NU-621-400E Nominal 4 foot (1.2m)
ISO 4 / Improved Allergen ISO 4 / NSF/ANSI 49 Non-flammable
Neoprene, Spring-loaded
Yes
One Sidewall
Up to 3 ea. Sidewall
14 (355) X 30 (762)
80 ½ (2045) 92 ½ (2350) 75 (1905)
54 (1372) 30 5/8 (777)
14 (356)
25 ½ (648) 42 5/8 (1081) 28 ¼ (718) Polycarbonate 785 CE 230 3.5 3 8 Cord Reel-15A 510 lbs. /231 kg. 460 lbs. /209 kg.

NU-620-500E NU-621-500E Nominal 5 foot (1.5m)
ISO 4 / Improved Allergen ISO 4 / NSF/ANSI 49 Non-flammable
Neoprene, Spring-loaded
Yes
One Sidewall
Up to 3 ea. Sidewall
14 (355) X 30 (762)
80 ½ (2045) 92 ½ (2350) 75 (1905)
66 (1677) 30 5/8 (777)
14 (356)
25 ½ (648) 54 5/8 (1387) 28 ¼ (718) Polycarbonate 785 CE 230 4.0 3 8 Cord Reel-15A 580 lbs. /263 kg. 530 lbs. /240 kg.

***Crated shipping weight does not include weight for accessories or options + Based on cabinet with new filters running at 230VAC.

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Operating the NU-620

6.1 AeromaxTM Control System
6.1.1 Overview The AeromaxTM control system is designed to service the control requirements of the NU-620. The AeromaxTM control system consists of an electronic module that will perform the following functions: · Easy user interface via LED’s and function keys · Control blower via solid state switch. · Control lights via solid state switch. · Control outlets via solid state switch. · Disable audible alarm switch with ring back function. · Control blower DC ECM motor with solid-state DC Motor Controller that provides automatic compensation for line voltage variances. · Monitor and display airflow system performance via PresurFlowTM monitor.
The NU-620 offers the latest digital microprocessor design technology for improved cabinet performance and safety. The AeromaxTM control system integrates a digital pressure sensor (PresurFlowTM) to monitor the cabinet’s airflow performance. The AeromaxTM control system also integrates a DC motor controller that provides automatic compensation for line voltage variances. There is additional on/off control of blower, fluorescent/LED light, ultraviolet light (optional) and outlets. All the above functions are shown in a system block diagram (see figure 1).

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6.1.2 Front Panel The control system front panel contains the following functions described in detail (see Drawing BCD-16521).
6.1.2.1 Blower Keys The blower key controls the ON/OFF power to the blower. LED above key indicates: full green for blower on, blinking green for blower pending and full red for blower alarm.
6.1.2.2 Hidden Key The hidden key is located just above the blower LED indicator centered in the airflow symbol. The hidden key is used for various functions including the blower password 3 key sequence if the option is activated.
6.1.2.3 LED Light Key The LED light key controls the on/off power to the LED light. LED above the key indicates full blue for fluorescent light on.
6.1.2.4 Ultraviolet (UV) Light Key (Typically Not Used on this model)
6.1.2.5 Outlet Keys The outlet key controls the ON/OFF power to the outlet. LED above indicates full blue for outlets on.
6.1.2.6 Red Alarm LED The red alarm LED will indicate any alarm condition and remain indicating until the alarm condition is cleared.
6.1.2.7 Audible Alarm Silence The audible alarm silence key allows user interaction to silence an audible alarm for a period of 15 minutes. After 15 minutes if the alarm condition still exists, the audible alarm will again sound. The audible alarm silence key also is used to exit all AeromaxTM user interaction menus.
6.1.2.8 Arrow Adjustment Keys The arrow adjustment keys allow user interaction for various functions.

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6.1.3

AeromaxTM Control System Power After the NU-620 is plugged into the appropriate facility line power the control system will power up. The control panel will also indicate the power up status by blinking the red alarm LED. Pressing any key will acknowledge the power up status and turn off the blinking red alarm LED.

If a power interruption occurs, all control system functions, calibrations and parameters will be maintained and continue upon restoration of power. Durring initial power up, the red alarm LED will blink to indicate power up status.

6.1.4

Standby Mode When the ATS is not in use any of the function keys except the blower that initiates run mode may be turned on and off in standby mode.

6.1.5

Run Mode Any time the blower run key is pressed, the Run Mode screen will be initiated. While in Run Mode one LED segment will be illuminated to indicate cabinet airflow status. Wait for at least one minute after starting the blower for the airflow to stabilize before starting any work.

Once stabilized, the single illuminated LED will indicate the following: – Green: Unit airflow is within safe working parameters. – Yellow: Unit airflow is within safe working parameters, but near unsafe limits. Consider recalibration/recertification. – Red: Unit airflows are not safe and unit should not be used. Check airflow values and recalibrate/recertify cabinet. See section 7.1.

Note: When first setting the motor control function parameter (section 8.5.2) the PresurFlowTM system will enter an approximate 3 minute warm up period. If the blower is turned on during this period the PresurFlowTM LED indicators will blink and indicate the following sequence:
· 1st minute ­ Left and right Red LED’s will blink · 2nd minute ­ Left and right Green LED’s will blink · 3rd minute ­ Center 3 Green LED’s will blink

Once the warm-up period is complete, only one LED will indicate cabinet airflow status.

6.1.6

Standby/Run Mode Alarms If present, standby/run mode alarms will be both visual and audible, the red alarm LED oval will turn on. Audible alarms will produce an alarm tone for 30 seconds, then ring back for 2 seconds of every 5 seconds. Pressing the alarm silence key will silence the audible alarm for 15 minutes initially then will start the ring back function again.

The list below represents alarm types and their respective priority from the highest to lowest priority. 1) New Firmware Loaded 2) Internal Board Failure 3) Power on Reset 4) Airflow Pressure Alarm 5) Blower RPM Failure

Note: The above messages are described in greater detail in section 10.0.

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6.1.7 Operator Accessible Functions

6.1.7.1 Access and Navigation To access the operator accessible functions,
· Press and hold the key, then enter the 3 key sequence for the desired function, then release the
key and follow each instruction set.

Note: Pressing the key at any time will abort and exit the process without saving any changes made. Pressing the hidden key will accept all changes and exit.

6.1.7.2 Auto Timer Duration Auto timer duration timers are countdown timers for the functions displayed once time is entered into a function. The timer will begin to countdown upon the start of that function (i.e. press UV light key to start timing the UV light). The LED indicator above the function key will start to blink indicating the timer function. If the LED indicator was full on, no timer function is present. As the timer expires the function will turn off. · Select auto timer duration function o Outlets
Press and hold key, then press hidden ­ outlet ­ outlet keys sequentially.

LED indicator above outlet will blink fast. Adjust desired time as described below.

o Lights Press and hold

key, then press hidden ­ light ­ light keys sequentially.

LED indicator above light will blink fast. Adjust desired time as described below.

o Adjust countdown time
Press or keys to adjust time. Time will change in 15 minute increments as shown on the PresurFlowTM LED segments below.

Time in Increments

LED Display

15 minutes for Red LED

30 Minutes for Yellow LED

1 hour for green LED

Represents 8 hours (maximum time)

· Press hidden key to accept time and exit. · Press Key at any time to abort and exit.

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6.1.7.3 Blower Password The blower on/off password allows the cabinet user to place a 3 key sequence requirement to turn the blower on or off. The 3 key sequence for the blower password will be a combination of the hidden and blower keys. · Select blower password Press and hold key, then press hidden ­ blower ­ hidden keys sequentially. Red LED indicator above blower will blink fast. · Select password Press or key to scroll through the code choices below,
No Password
B-B-H password
B-H-B password (default)
B-H-H password only
H-B-B password
H-B-H password
H-H-B password · Press hidden key to accept time and exit. · Press key at any time to abort and exit. Note: If the required blower password option is selected in the blower airflow option menu (see section 8.2.2). Then the “No password” choice above is not available and the default remains B-H-B.

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Operating Guidelines

It is acceptable and sometimes recommended to operate the station continuously. The station will then remain in its initially clean condition. If for any reason the unit is turned off for some time, daily or weekly, turn the station on and run for 10 minutes before using.
Allow only essential items in the work station. New items introduced into the work area should be placed within one of the worksurface quadrants to minimize cross contamination. All work should be performed with the operator’s hand downstream of the critical process points. Unnecessary movement with the work station should be kept to a minimum.
7.1 Operating Sequence:
Start-Up Turn on the station’s blower and lights. Blower speed must only be readjusted by qualified maintenance technicians. Good procedure includes the decontamination or wipe down of station surfaces with chemical disinfectant before work commences.
Note: See cleaning procedures section 7.3
Allow blower to operate for a minimum of 10 minutes before aseptic manipulations are begun in the station. An additional advantage is obtained from purification (filtration) of the room air circulated through the equipment. Because of the characteristics contributed to the quality of the laboratory environment, some owners leave them in operation beyond the time of actual use.
Minimize Room Activity Activity in the room itself should be held to a minimum. Unnecessary activity may create disruptive air currents as well as interfere with the work of the operator. A person walking past the front of the station can cause draft velocities up to 175fpm (.88 m/s) which are sufficient to disrupt the air balance of the Laminar Flow Unit.
Utilize Unidirectional Airflow The operator must keep two important facts in mind:
1. The air is supplied to the work area through the HEPA filter is contaminant free. 2. Airborne contamination generated in the work area is controlled by the unidirectional vertical flow air stream.
A solid object placed in a laminar air stream will disrupt the parallel flow and consequently, the capability of controlling lateral movement of airborne particulates. A cone of turbulence extends behind the object and laminarity of the air stream is not regained until a point is reached downstream, approximately equal to three to six times the diameter of the object. Within the parameters of this cone, particles may be carried laterally by multidirectional eddy currents. The downdraft vacuum source on the worksurface greatly reduces the above effect. However, working with proper technique is always the best method.
Terminal Purging & Wipe down Following completion of the work, allow the station for a 2-3 minute period without personnel activity to purge the unit. The decontamination of the interior surfaces should be repeated after removal of all work materials.
Prefilters Located under the work surface is a prefilter area. This area forms the air path to the exhaust motor/blower. If the air flow is blocked by excessive animal dander or bedding materials, the performance of the station could be seriously affected. Therefore, THE PREFILTERS SHOULD BE CHECKED AND CLEANED NO LESS THAN ON A WEEKLY BASIS. The prefilters may be vacuumed to remove the materials. The prefilters may also be replaced as necessary (see replacement parts list).
Shut Down Turn off blowers and lights. Do not use station as a depository for excess laboratory equipment during periods of non-operation.

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7.2 Ergonomics
Ergonomics, the study or accommodation of work practices is extremely important for proper usage and user health and safety. An evaluation of normal work practices should be performed with each user when working. Evaluation criteria should be at a minimum:
a. Proper user posture (sitting or standing) b. Effective work zone layout for work practice c. Vision or sightlines
For each of the above evaluation criterion, several aids may be supplied to accommodate the user.
· Ergonomic chair ­ for sitting application, a six-way articulating seat and back control for personalized adjustment to assure proper user posture. Be sure feet are resting on the floor, chair foot support or foot rest. Also be sure back is fully supported with proper chair adjustments.
· Anti-fatigue mat ­ for standing application, using a closed cell skinned anti-fatigue mat will aid user comfort. · Forearm/armrest support – The cabinet is provided with a forearm support on the work access opening. Periodic
mini-breaks during work practice should be taken resting forearm to avoid stress and fatigue. · Effective work zone layout – Always prepare your work procedure to minimize reach to avoid neck and shoulder
stress and fatigue. Rotating tables are optional to maximum work zone and minimize reach. · Vision and sightline – Always prepare your work procedure to eliminate glare and bright reflections on the window.
Keep your window clean and sightlines clear to your effect work zone.
7.3 Cleaning Procedures
7.3.1 General Cleaning laboratory equipment is important in terms of both functionality and general good housekeeping. The information provided below is intended to aid the development of facility Standard Operating Procedures (SOP’s) for cleaning the equipment. It is strongly recommended that all cleaning materials used be tested and verified in terms of both effectiveness and material compatibility before they are written into the cleaning SOP documentation.
a. The airflow blower should be operating during the cleaning process to maintain sterility and/or containment during the cleaning process.
b. Raise window to gain additional access if desired.
c. Apply appropriate cleaning material or surface disinfectant to surfaces. Most surface disinfectants require a specific contact time depending the materials used within the work zone. CONSULT APPROPRIATE DISINFECTANT DOCUMENTATION FOR PROPER APPLICATION AND SAFETY PRECAUTIONS.
c-1. Polycarbonate (Covestro® Makrolon®AR) has noted material compatibility concerns (see polycarbonate compatibility section). They recommend the use of Hydrogen Peroxide based materials such as the following:
– Steriplex SD – Safetec surface wipes – Peridox RTU
It is recommended to AVOID the use of cleaning materials that contain Chlorine, Quaternary Ammoniums and Phenol’s.
If the polycarbonate is lightly scratched, it may be able to be polished out with Mirror Glaze Plastic Polish or similar.
Further information may be available from www.covestro.com
c-2. Stainless steel (type 304) has noted material compatibility concerns with Acids, Chlorides and Halogens. IF THESE MATERIALS ARE USED AND ALLOWED TO BE LEFT ON THE STAINLESS STEEL SURFACE, OXIDATION AND DEGRADATION WILL OCCUR. Only by re-wiping surfaces with either sterile water or 70% IPA will remove harmful materials from the stainless steel surface.
Further information is available at the following: http://www.parrinst.com/wp- content/uploads/downloads/2011/07/Parr_Stainless-Steels-Corrosion-Info.pdf

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NOTE: NuAire does not offer any product warranty with respect to cleaning material compatibility. USE AT YOUR OWN RISK! The information provided above is from raw material suppliers and known general source documents for use to develop application cleaning SOP’s.
NOTE: When cleaning the work area for the first several times, the new metal surfaces may produce some dark discoloration on the white cleaning wipes. Repeated cleaning will continuously reduce the amount of the discoloration material on the cleaning wipes over time.

General Maintenance

All maintenance actions on this equipment must be performed by a qualified technician who is familiar with the proper maintenance procedures required for this equipment. This includes both certification as well as repair.
Normally, no preventative maintenance is required on the interior of the station. The motor is lubricated for life and is thermally protected with automatic reset. The entire lamp assembly is located under the removable supply diffuser. Motor controls and station switches are located in the clean area of the hood.
However, it is recommended to perform routine preventative maintenance. Additionally, it is recommended that the station be certified, per section 8.7 after the station has been installed and annually thereafter, or whenever the operator has reason to believe it necessary.
8.1 Preventative Maintenance
In addition to the annual certification process it is recommended that the following preventative maintenance be performed on a regular basis to ensure the station remains in safe working order.

8.1.1

Prefilters The prefilters should be inspected daily and cleaned on a regular basis as needed or in accordance with established facility guidelines and SOP’s. This will ensure that proper airflows will be maintained.

8.1.2 Hydraulic Lift The hydraulic lift should be inspected annually by running it fully up and down and observing for proper operation.

8.1.3

Caster Channel The channels that secure the casters to the stainless steel hydraulic legs should be checked annually for tightness to the hydraulic leg. If they are bent or loose replacement may be necessary.

8.1.4

Casters The casters should be inspected annually for tightness. If they are found to be loose, they should be removed, inspected and re-installed with BLUE Loctite. If they are bent or loose replacement may be necessary, please contact NuAire’s Technical Support 1-800-328-3352.

8.1.5

PushPull Bars The pushpull bars should be inspected annually and tightened as necessary. There are two nuts that secure them to the cabinet. They are under a cover on the black end pieces. They can be tightened with a 7/16″ socket or nut driver.

8.1.6 Power Cord The power cord itself should be inspected for wear on an annual basis.

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8.2 LED Lamp Replacement

8.2.1

To Replace a Lamp: 1) Switch the station light off. 2) Raise hinged window to access supply diffuser. 3) Remove supply diffuser via fasteners. 4) The LED lamps are removed by rotating the lamp until the pins are free to be gently pulled from the tombstones 5) Reverse the above procedures to replace the lamp and reassemble the station.

8.3 HEPA Filter Replacement
It is recommended that the station have the integrity of the HEPA filters verified by a qualified technician after the unit has been initially installed. Thereafter, certification per Section 8.5 should be performed on an annual basis or whenever the operator has reason to believe it is necessary. The HEPA filters under normal usage and barring an accident do not need replacement until the efflux velocity cannot be maintained.

8.3.1 Supply HEPA Filter 1) Disconnect electrical power from station. 2) Remove side filter access cover from station’s top housing via fasteners. 3) Raise hinged window to access supply diffuser. 4) Remove supply diffuser via fasteners. 5) Loosen filter frame hold down spring clamps under filter. 6) Once filter is loose, pull out HEPA filter from side access using handles provided. 7) When replacing the filter, use only filters of the same rated flow, pressure drop and size. 8) To install new filter, grease the top gasket of the filter with silicon grease and carefully install onto filter frame. 9) Tighten filter frame hold down spring clamps evenly, so filter gasket will have equal pressure from all areas. 10) Replace diffuser and side access cover once filter is installed.

8.3.2 Exhaust HEPA Filter 1) Raise station to its highest available work height. 2) Disconnect electrical power from station. 3) Remove protective screen under exhaust HEPA filter via fasteners. 4) Loosen filter frame hold down spring clamps under filter. 5) Remove the 2(two) center bolts, springs and washers. 6) Remove the 2(two) right bolts, springs and washers and lower right side of filter rack to rest on cross bar. 7) Slide filter out right side of unit. 8) When replacing the filter, use only filters of the same rated flow, pressure drop, and size. 9) To install new filter, grease the top gasket of the filter with silicone grease and carefully install onto filter frame. 10) Tighten filter frame hold down spring clamps evenly, so filter gasket will have equal pressure from all areas. 11) Replace protective screen, side access cover, and filter access cover once filter is installed.

USE ONLY NUAIRE SPECIFIED FILTERS FOR REPLACEMENT

Description:

Supply HEPA Filter

Exhaust HEPA Filter

Efficiency:

99.99% @ 0.3 Micron

99.99% @ 0.3 Micron

Airflow Rating: Frame Type:

100 fpm @ .35 .05″ w.g. per sq. ft. Metal

100 fpm @ .35 .05″ w.g. per sq. ft. Metal

NU-620/621-300E NuAire Part Number: Filter Size:

A-980980-04 20″ (508mm) x 38″ (965mm) x 3″ (76mm)

A-980980-01 18″ (457mm) x 34″ (864mm) x 3″ (76mm)

NU-620/621-400E NuAire Part Number: Filter Size:

A-980980-05

A-980980-02

20″ (508mm) x 44″ (1118mm) x 3″ (76mm) 18″ (457mm) x 40″ (1016mm) x 3″ (76mm)

NU-620/621-500E NuAire Part Number: Filter Size:

A-980980-06

A-980980-03

20″ (508mm) x 56″ (1422mm) x 3″ (76mm) 18″ (457mm) x 52″ (1321mm) x 3″ (76mm)

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8.4 Motor/Blower Replacement
The motor/blower assemblies should never need any preventative maintenance, but in case of a malfunction, the following steps should be taken.

1. Disconnect electrical power from station. 2) To remove the lower (exhaust) motor/blower, lift and remove the work tray and the prefilter screen assembly.
   Then, remove the nuts that secure the blower plate to the station, lift out the plate and motor/blower, and disconnect the wire harness and ground cable. To remove the upper (supply) motor/blower, remove the prefilter assembly. Then lift the plate with the motor/blower and disconnect the wire harness and ground cable. 3) Re-assemble by reversing the above steps.
   8.5 Airflow Control System Setup and Calibration
   8.5.1 General The operation of the NU-620 cabinet requires that the setup and calibration procedures be performed in order to certify or commission the cabinet for usage. The setup and calibration procedures performed ONLY BY THE CABINET CERTIFIER ensure that cabinet’s setpoints are verified and that the airflow monitor sensor is calibrated to the correct values.
   8.5.2 Configuration Parameters Configuration parameters identify cabinet motor type and size for proper performance characteristics.
   · Select motor control function/type
   o Press and hold key, then press light ­ light ­ light keys sequentially. LED indicators above both blower (red) and light keys will blink fast.
   Review motor control function/type and change it desired as described below. o Press or keys to scroll through the LED segment choices associated with motor control
   function/type.
   Auto DC ECM motor
   Fixed duty DC ECM motor
   Fixed duty EC Impeller motor o Press hidden key to accept motor control function/type and exit
   o Press key at any time to abort and exit.
   8.6 Airflow Calibration
   Failure to calibrate airflow to the specified requirements may result in unsafe conditions of performance (i.e. product and/or personnel protection, noise and vibration)
   The NU-620 airflow calibration consists of airflow adjustments within the station.
   NOTE: THIS WORK SHOULD BE DONE ONLY BY A QUALIFIED TECHNICIAN WHO CAN MEASURE VOLTAGE AND AIRFLOW FROM THE FILTERS WITH A SUITABLE VELOMETER.
   Airflow is adjusted by changing blower voltage regulator settings.

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The station is considered to be certifiable if the following measurements are present: a. Downflow Average: 60 LFPM + 5 LFPM (.3 m/s + .025 m/s)

b. Exhaust Airflow

Single Side 550 + 50 CFM (935 + 85 CMH) 625 + 50 CFM (1060 + 85 CMH) 800 + 50 CFM (1360 + 85 CMH)
Dual Side 425 + 50 CFM (720 + 85 CMH) 500 + 50 CFM (850 + 85 CMH) 600 + 50 CFM (1020 + 85 CMH)

Model 621-300E 621-400E 621-500E
Model 620-300E 620-400E 620-500E

NOTE: BEFORE STARTING AIRFLOW CALIBRATION PROCEDURE, LET THE STATION RUN FOR AT LEAST 10 MINUTES.

8.6.1 Downflow Calibration Step 1: Place an anemometer in the station work zone in a parallel plane 2 inches (51mm) from the supply diffuser surface. Spot check several points on the recommended downflow velocity test grid found in Table 10. Step 2: If necessary, adjust supply airflow via the standalone potentiometer in the control center, to the above stated airflow requirements.
Table 10 Recommended Measurement Method for Downflow Calibration

8 (203)
20 (508)

6 (152)

11 (279)

NU-620/621-300

16 (406)

21 (533)

26 (660)

31 (787)

8 (203)
20 (508)

6 (152)

11 (279)

NU-620/621-400

16 (406)

21 (533)

26 (660)

31 (787)

36 (914)

8 (203)
20 (508)

6 (152)

Number of Readings:

12 (305)

18 (457)

NU-620/621-500

24

30

36

(610

(762)

(914)

Average Velocity:

42 (1067)

44 (1219)

LFPM (m/s)

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8.6.2

Exhaust Airflow Procedure: After downflow calibration is complete, remove the work surface but leave the black prefilters in place. Then place a direct inflow-measuring device (with the hood removed) over the opening to the exhaust impeller. Seal the opening around the base of the DIM with duct tape.
If necessary, enter active blower speed adjustment.
· Press and hold key, then press hidden ­ blower – keys sequentially. LED indicator above blower (green) key will blink fast.
Press or keys to adjust blower speed. · LED segments will indicate blower speed percentage and active blower speed adjustment.

o Right end red LED indicates active blower speed adjustment . The red LED will blink as soon as any adjustments are made and will continue to blink as the motor rpm settles. Once the red LED stops blinking, the motor will run steady state at the new percentage. Note: The red LED must be non-blinking to save or exit
o Green LED’s indicate percentage on of scale (0-100%) o Yellow LED’s indicate minimum (left/maximum (right) blower speed has been achieved
Note: At any time during the process · Press hidden key to accept and enter the blower speed calibration point (if the blower speed calibration point was not successfully entered, a half second audible alarm will occur. The calibration process must then be repeated for successful entry of blower speed calibration point.)
· Press key to abort and exit

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Alternate Method: After downflow calibration is complete, remove the work surface, stainless steel drip cover, and the mesh screen with the elastic band in the exhaust plenum (leave the black prefilters in place). Then place an 18″ x 18″ x 12″ cardboard box (with bottom removed) around opening. Add a hole at the center of the front of the box (6 inches from the bottom, 9 inches from the side). Create a fixture to hold a thermo anemometer probe, and take 11 readings across the opening starting 4 inches from inside of box, reading 1-inch apart, until probe end is 14 inches from inside edge of the box. Average the 11 readings, (compensate for the local air density), multiply the average by the area, (2.25 ft2) and then multiply by the conversion factor .68.
8.7 Filter Integrity Check
In order to check the filter, the HEPA filter media must be directly accessible. Remove the supply diffuser and exhaust protective screen to access the filters. P.A.O. upstream concentration ports are available on both the top and bottom filter housings if needed.
NOTE: Scanning the HEPA filter seal cannot be done by only removing the diffuser screen. HEPA filtered air must be directed into the dead-air space to flush the area with particle free air while scanning for leaks. The frame itself is under negative pressure and scavenger slots, if present, help flush out the area when the diffuser is installed.
For more information reference STB0374 HEPA Filter Frame Area Testing.

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8.8 PresurFlowTM Alarm Set Points
The PresurFlowTM alarm setpoints are preset based on the calibration setpoint. Once the calibration setpoint is entered, based on a nominal airflow velocity, the associated pressure sensor value is entered as the nominal pressure value. The high and low alarm setpoints are preset with an associated pressure offset value within the acceptable cabinet airflow range. Normally, no further adjustment is needed.
However, if specific use alarm setpoints are desired, the alarm setpoints may be adjusted by performing the following: Low Alarm Setpoint · Press and hold the Hidden and key for 3 seconds.
(The left red LED will blink and the green LED’s indicate blower speed) · Press or keys to adjust blower speed to the desired airflow velocity low alarm setpoint value.
· Left end red LED indicates active low limit blower speed adjust The red LED will blink as soon as any adjustments are made and will continue to blink as the motor rpm settles. Once the red LED stops blinking, the motor will run steady state at the new percentage. If the low alarm setpoint value is not within an acceptable range, the left end red LED will blink at a very fast rate.
Note: The red LED must be non-blinking to save or exit.
Note: At any time during the process · Press hidden key to accept low alarm setpoint value · Press key to abort and exit
· Upon exiting, the blower will go back to actual airflows.
High Alarm Setpoint · Press and hold the Hidden and key for 3 seconds.
(The right red LED will blink and the green LED’s indicate blower speed) · Press or keys to adjust blower speed to the desired airflow velocity high alarm setpoint value.
· Red end Red LED indicates active high limit blower speed adjust. The red LED will blink as soon as any adjustments are made and will continue to blink as the motor rpm settles. Once the red LED stops blinking, the motor will run steady state at the new percentage. If the high alarm setpoint value is not within an acceptable range, the right end red LED will blink at a very fast rate.
Note: The red LED must be non-blinking to save or exit.
Note: At any time during the process · Press hidden key to accept low alarm setpoint value · Press key to abort and exit
· Upon exiting, the blower will go back to actual airflows.
Note: Specific use alarm setpoints will be lost upon entry of new nominal calibration value. It is necessary to re-enter specific use high/low alarm setpoints every time a new nominal calibration is entered.

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8.9 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 49-2022 Annex I-2 or EN 12469:2000 Annex J), using the following chart to calculate chemical requirements.

Model Cabinet dimensions
Cabinet volume

NU-620/621-300E 75.375 x 42 x 30.625 in.
(1.91 x 1.1 x .8 m) 60 cu.ft.
(1.68 cu.m)

NU-620/621-400E 75.375 x 48 x 30.625 in.
(1.91 x 1.2 x .8 m) 68 cu.ft.
(1.83 cu.m)

NU-620/621-500E 75.375 x 60 x 30.625 in.
(1.91 x 1.5 x .8 m) 86 cu.ft.
(2.29 cu.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 I-2 or EN 12469:2000 Annex J.

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9.0 Polycarbonate Material Compatibility

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Error Indicators, Troubleshooting & Option Parameters

10.1 Error indicators occur for a variety of reasons.

Whenever an error indicator is presented, minihelic gauge not reading, or light doesn’t come on, please perform the following:

Step 1: NOTE ALL ERROR INDICATORS. When the station is running, note all functions that are in error.

Step 2: VERIFY ERROR INDICATOR. Error indicators can be verified by turning the errored function on/off.

Step 3: MONITOR RE-OCCURRENCE OF ERROR INDICATORS. If re-occurrence of the error indicator is immediate or daily, use guide below to correct the situation.

Error Indicator Troubleshooting Guide

Error Indicator Station lights won’t turn on.
Station blowers won’t turn on.
Station outlets won’t turn on. Blower/Lights/Outlet fuses continue to blow.
Hydraulic Lift PresurFlowTM left red LED indicator on and red LED alarm PresurFlowTM right red LED indicator on and red LED alarm All PresurFlowTM LED’s blink
Blower red LED blinks and red LED alarm

Indicator
Make sure blower key is turned on.
Lift system does not function properly PresurFlowTM reading low flow (pressure) PresurFlowTM reading high flow (pressure) Message acknowledges new firmware was loaded into microprocessor Indicates that the motor rpm signal has been interrupted

Correction Check fuse on front of control board. Check bulbs. Check voltage to light ballast’s. Check ballast. Check light switch. Check fuse on control board. Check voltage to blower. At motor voltage regulator. Check wiring to blower. Check blower capacitor. Check blower motor. Check fuse on control board. Check voltage to outlets. Check for short on main control board. Isolate output of circuit by disconnecting control center connectors, light circuit, AC or DC motor voltage, etc. to isolate the short. Call NuAire Service to resolve. (1-800-328-3352) Check airflow values. Check blower function. Recalibrate PresurFlowTM system. Check airflow values. Recalibrate PresurFlowTM system. N/A
Check connectors and wires from main control board to the exhaust motor Replace motor if required

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10.2 Option Parameters
The option parameter menu allows A QUALIFIED TECHNICIAN to configure several different optional parameters per the menu as described below.
10.2.1 Sync Function with Active Blower To access the option parameter menu, perform the following:
· Press and hold key, then press hidden – Blower – Fluorescent keys sequentially. Red LED indicator above the blower key will blink fast
The PresurFlowTM blinking green LED segments will indicate seven optional parameters as shown and described below. The UV Light key (move lefts) and outlet key (move right) allows selection of the option parameter desired.
Once the desired option parameter is indicated, press or key to turn on or off. A slow blinking green LED indicator means off and a fast blinking green LED indicator means on. Multiple option changes can be selected.
· Pressing the hidden key will accept all changes and exit
· Pressing the key will abort the process and exit
Sync Fan Relay with Active Blower Normally the fan relay will activate when the blower switch is pressed. Blower can either be actively running or pending. If the fan relay sync is active the blower must be actively running for the relay to change state.
Sync Accessary Outlet with Active Blower ­ Normally the accessary outlet is on all the time. If the accessary outlet sync is active, the blower must be actively running for the accessary outlet to turn on.
Sync Outlet Power with Active Blower ­ Normally the outlet power is turned on via the outlet key. If the outlet power sync is active, the outlet power will turn on and off with the blower or may be turned on and off independently if the blower is active.
Sync Fluorescent Light with Active Blower ­ Normally the fluorescent light is turned on via the fluorescent light key. If the fluorescent light sync is active, the fluorescent light will turn on and off with the blower or may be turned on and off independently if the blower is active.
Sync 15 Volt DC output with active blower normally the 15 Volt DC output located on the control board is on when power is applied to the system. If the 15 Volt DC output sync is active, the blower must be actively running for the 15 Volt DC output to turn on.
10.2.2 Blower/Airflow Options To access the option parameter menu, perform the following:

· Press and hold key, then press hidden – and keys sequentially. Red LED indicator above the blower key will blink fast
The PresurFlowTM blinking green LED segments will indicate seven optional parameters as shown and described below. The UV Light key (moves left) and outlet key (moves right) allows selection of the option parameter desired.
Once the desired option parameter is indicated, press or key to turn on or off. A slow blinking green LED indicator means off and a fast blinking green LED indicator means on. Multiple option changes can be selected.
· Pressing the hidden key will accept all changes and exit
· Pressing the key will abort the process and exit

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Require Password ­ Normally it is not required to use a password (i.e. 3 key press sequence of the blower and hidden key). If the option is turned on, it would be required to use the correct password to turn on the blower. The default password once turned on is blowerhidden-blower keys in sequence. The password can be changed in the blower password option menu.
Allow UV light anytime ­ Normally the UV light is interlocked with the window being in the closed position. For service purposes only, if the function is active, the UV light may be turned on at any window height.
Note: In addition to the Allow UV light anytime system function, there is a double redundant UV light window interlock relay. To override the UV light window interlock relay, the relay itself must also be shorted. (See electrical schematic for reference).
Manual Blower Restart ­ Normally when the blower is actively running and a power interruption occurs. The blower will automatically come back on when power is restored. If this function is turned off, the blower will not automatically come back after a power interruption, but would require the user to press the blower key to restart the blower.
Nite Care ­ Normally the Nite Care function is turned off. If selected and turned on, once the blower is actively running. Upon closure, the blower will continue to run at a calibrated lower speed level to keep the work zone interior sterile. The PresurFlowTM will indicate(s) blinking green LEDs along with green LED above blower key. The fluorescent light will turn off (blue LED above light key will blink if window closure turned it off) and become inoperable; however the UV light can be used.
Disable PresurFlowTM If this function is active, the digital pressure sensor and alarm function are turned off.
Temporary Nite Care When this option parameter is turned on and the other requirements below are met, the blower key (when held for 5 seconds) will toggle blower between normal and Nite Care blower speed. The Nite Care blower will time out, based on the Auto Timer duration for Nite Care without a blower key press and the blower speed will revert back to normal. Closing the window will automatically terminate.
In addition to turning this option on the following requirements must also be met · The Nite Care must be selected · Password must be selected · Window is at normal height and blower is running · Nite Care blower auto timer must be set for a minimum of 15 minutes.
Disable audible alarms / audible key feedback Normally audible alarms from the PresurFlowTM monitor and audible key feedback are present to provide an audible sound to the user. If this function is active, all audible sound will be silenced when the control system is in normal run mode. Audible sound will still occur in any service/calibration menu function.

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Remote Contacts

The NU-620 has several contact closures for remote sensing of various functions.
11.1 Fan Relay
The fan relay contacts are normally open and closed contact closure outputs that are activated whenever the blower key is pressed and the blower key LED indicator is on or blinking. Contact ratings are 250 VAC maximum at 2 Amps.
11.2 Alarm Relay
The alarm relay contacts are normally open and closed contact closure outputs which are activated whenever an airflow alarm condition occurs. Contact ratings are 250 VAC maximum at 2 Amps.

11.3 15VDC Output
The 15VDC (100mA) output is generated if the blower is actively running.

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Electrical,Environmental Requirements

12.1 Electrical: (Supply voltage fluctuations not to exceed +/-10%)

Electrical NU-620/621-300E NU-620/621-400E NU-620/621-500E

Voltage 230 230 230

Frequency 50/60 Hz 50/60 Hz 50/60 Hz

Phase 1 1 1

Current (Amps)
8 8 8

12.2 Operational Performance – Indoor Use Only

Environment Temperature Range:

60F – 90F (15.6C – 32.2C)

Environment Humidity:

Maximum relative humidity 80% for temperatures up to 31C

decreasing linearly to 50% relative humidity at 40C

Environment Altitude:

6562 Feet (2000 Meters) Maximum

12.3 Light Exposure
Standard LED Lighting @ 150 ft. candles (1614 LUX) maximum intensity.

12.4 Installation Category: II
Installation category (overvoltage category) defines the level of transient overvoltage which the instrument is designed to withstand safely. It depends on the nature of the electricity supply and its overvoltage protection means. For example, in CAT II, which is the category used for instruments in installations supplied from a supply comparable to public means, such as hospital and research laboratories and most industrial laboratories, the expected transient overvoltage is 2500 V for a 230 V supply and 1500 V for a 120 V supply.

12.5 Pollution Degree:

2.0

Pollution degree describes the amount of conductive pollution present in the operating environment. Pollution degree 2

assumes that normally only non-conductive pollution such as dust occurs with the exception of occasional conductivity

caused by condensation.

12.6 Chemical Exposure
Chemical exposure should be limited to antibacterial materials used for cleaning and disinfecting. CHLORINATED AND HALOGEN MATERIALS ARE NOT RECOMMENDED FOR USE ON STAINLESS STEEL SURFACES. Chamber decontamination can be accomplished by paraformaldehyde, vapor phased Hydrogen Peroxide or Ethylene Oxide without degradation of cabinet materials.

12.7 EMC Performance (classified for light industrial)
Emission: EN61326 Immunity: EN61326

! WARNING

Class A equipment is intended for use in an industrial environment. In the documentation for the user, a statement shall be included drawing attention to the fact that there may be potential difficulties in ensuring electromagnetic compatibility in other environments, due to conducted as well as radiated disturbances.

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Disposal and Recycle

Cabinets that are no longer in use and are ready for disposal contain reusable materials. ALL components with the exception of the HEPA filters may be disposed and/or recycled after they are known to be properly disinfected.
NOTE: Follow all local, state and federal guidelines for disposal of HEPA filter solid waste. BIOHAZARD
Prior to any disassembly for disposal, the cabinet must be decontaminated.

Recycle

Lead Free

Component Main Cabinet Plenum Worksurface View Screen Window Frame Supply Diffuser Exhaust Diffuser HEPA Filter Frames Motor Printed Wiring Assembly Wire Ballasts Connectors Hardware

Material Painted Steel Stainless Steel Stainless Steel Polycarbonate HDPE Aluminum Aluminum Painted Steel Various Steel / Copper Lead Free Electronic PVC Coated Copper Various Steel, Electronic Nylon Stainless Steel and Steel

Note: Material type can be verified with use of a magnet with stainless and aluminum being non-magnetic.

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Preventive Maintenance Checklist

Prefilters ­ Check Daily Check supply prefilter Check exhaust mesh prefilter Check exhaust prefilter Clean (black washable foam) or replace (white disposable) if necessary Worksurface ­ YearlyAs Needed Clean the work surface top Clean under the work surface Check for rubber feet on worksurface and prop rods Replace if missing Check tightness of acorn nuts on prop rod supports * Tighten and replace if necessary Windows ­ YearlyAs Needed Check acorn nuts holding window hinge Check window clips and make sure they hold the window up

• Tighten and replace if necessary Clean the View Screen Window, both sides Diffuser Screen ­ YearlyAs Needed Check thumbscrews Tighten and replace if necessary Other ­ YearlyAs Needed Check lift system rod/base assembly attachment Appendix A of STB0214 (Preventive Maintenance Check List) Check castors Tighten if necessary Check cord reel and cord for signs of wear * Replace if necessary Check thumbscrews holding feed hopper (Optional) Check tightness of pushpull bars Run the autolift up and down to ensure proper function Check that the LED light bulbs are working correctly Check all the switches and indicators for correct operation

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References

• Home | Covestro AG
• Home | Covestro AG

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