NuAire LabGard NU-560E Series Operation & Maintenance Manual
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NuAire LabGard NU-560E Series Operation & Maintenance Manual

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LabGard® ES Energy Saver Class II,
Type B2 Laminar Flow
Biosafety Cabinet
Models
NU-560-400E/600E
Bench/Console
Operation & Maintenance Manual
(Series C)
Revision 3
October 2020
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
Page 1 of 101

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Summary of Contents for NuAire LabGard NU-560E Series

  • Page 1 Type B2 Laminar Flow Biosafety Cabinet Models NU-560-400E/600E Bench/Console Operation & Maintenance Manual (Series C) Revision 3 October 2020 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 Page 1 of 101...
  • Page 2 NSF/ANSI 49. Please read this manual carefully to familiarize you with proper installation, maintenance and operation of the cabinet. Other reference and guideline materials are available through the following web sites. www.hc-sc.gc.ca www.cdc.gov/od/ohs/ www.absa.org www.absa-canada.org www.ebsa.be www.inspection.gc.ca www.who.int www.biosafety.be www.hse.gov.uk www.nsf.org www.cetainternational.org www.osha.gov/dts/osta/ www.nuaire.com OM0296 Revision 3 October2020 Page 2 of 101...
  • Page 3 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.

  • Page 4: Table Of Contents

    LabGard® ES Energy Saver Class II, Type B2 Laminar Flow Biosafety Cabinet Models NU-560-400E/600E Operation & Maintenance Manual TABLE OF CONTENTS Section No. 1 ............. General Information Section No. 2 ............. Models & Features Section No. 3 ............. Warranty Section No. 4 ............. Shipments Section No.
  • Page 5 Biosafety Cabinet Models NU-560-400E/600E MANUFACTURED BY: NuAire, Inc. - Plymouth, Minnesota, U.S.A. General Information 1.1 Description The LABGARD® ES Model NU-560E Laminar Flow Biosafety Cabinet (LFBSC) is a bench/table top model, optionally available with a base support stand, for operation as a console model. The LABGARD® ES model NU-560E utilizes an Energy Saver DC ECM motor optimally determined forward curved fan for each model size/width to maximize both energy efficiency and filter loading capacity.
  • Page 6 Keep these operating instructions close to the cabinet 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. 1.3 Explanation of Symbols Safety alert symbol indicates a potentially hazardous WARNING situation which, if not avoided, could result in death of serious injury.
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  • Page 8 Models & Features The model NU-560E, LABGARD® ES Class II, Type B2 Laminar Flow Biosafety Cabinet is manufactured in two sizes: 4 ft. (1.2m) and 6 ft. (1.8m). OM0296 Revision 3 October2020 Page 8 of 101...
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  • Page 11 However, damage can occur in any shipment and the following outlines the steps you should take on receipt of a NuAire LABGARD® ES cabinet to be sure that if damage has occurred, the proper claims and actions are taken immediately.

  • Page 12: Location

    Installation Instructions 5.1 Location Within the laboratory, pharmacy, etc., the ideal location of the Biosafety cabinet is away from 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 inflow velocity of the cabinet through the access opening, the potential exists for contaminated air to exit or enter the work zone area of the cabinet.

  • Page 13: Set-Up Instructions

    5.2.4 Gas Service NuAire doesn't recommend the use of natural gas within the LFBSC, but if gas service is determined to be necessary for the application, appropriate safety measures must take place. All NuAire LFBSC's have precautionary warning labels that say the following:...
  • Page 14 As previously stated NuAire doesn't recommend the use of natural gas within the LFBSC and ASSUMES NO RESPONSIBILITY FOR ITS USE. USE AT YOUR OWN RISK. The Bunsen burner flame within the LFBSC not only contributes to heat build-up; is also disrupts the laminar air stream, which must be maintained for maximum efficiency.
  • Page 15 940-001), banded between the cabinet's exhaust duct and the plant exhaust duct is recommended, with no more than a two-inch gap between the ducts, for a 1/8 inch (3mm) thick silicone sleeve. If NuAire damper valves are present, see Drawing BCD-05572 for installation.
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  • Page 18: Exhaust/Supply Air Checks

    5.2.8 Final Assembly Remove the protective cardboard cover over the supply and exhaust connections on top of the cabinet. The exterior surface and viewing glass are easily cleaned with any mild household detergent cleaner using a soft cloth. Harsh chemicals, solvent-type cleaners and abrasive cleaners should not be used. Do not attempt to clean the HEPA filter media.

  • Page 19: Certification Testing Methods And Equipment

    5.4 Certification Testing Methods and Equipment After installation and prior to use, NuAire recommends that the cabinet be certified or commissioned to factory standards. As a part of certification, the certifier should go through the following initial checklist to assure all aspects of the LFBSC installation are complete and ready for certification.
  • Page 20 LabGard® ES Energy Saver Class II, Type B2 Laminar Flow Biosafety Cabinet Models NU-560-400E/600E Catalog Number Catalog Number NU-560-400E NU-560-600E Nominal 4 foot (1.2m) Nominal 6 foot (1.8m) Performance Specifications 1. Personal Protection NSF/ANSI 49 NSF/ANSI 49 2. Product Protection NSF Std.

  • Page 21: Biosafety Cabinet Control

    Operating the NU-560E 6.1 Biosafety Cabinet Control 6.1.1 Overview The Biosafety Cabinet Control (BSCC) system is designed to service the control requirements of the NU-560E Biosafety Cabinet. The control system is a self-contained microprocessor driven module that will perform the following functions: Easy use interface via TOUCHLINK color LCD.
  • Page 22 6.1.2 Standby Mode When the BSC is not in use, the TOUCHLINK LCD screen will display Standby, the icons along the top and the time and date at the bottom as shown below. Any of the function icons, except the blower, that initiates Run Mode, may be turned on and off in standby mode.
  • Page 23 TOUCHLINK LCD screen will also display a description of the alarm in place of the NuAire Logo along with alarm silence icon. Depending upon the alarm type, the LFBSC profile will also indicate in red the alarm present.
  • Page 24 6.1.5.1 Setpoint / Limits: This menu screen will indicate the Biosafety Cabinet airflow control setpoints, Access is restricted to service personnel requiring a service password to change values. 6.1.5.2 Timer Settings: When pressed timer setting text will provide a list of time functions available for use below is a description of each timer function.
  • Page 25 Timer Functions Purge Timer: This timer controls how long the blower will run to purge the cabinet after the blower icon  has been pressed to turn OFF the blower. Outlet Timer: This timer controls how long the outlet remains on after the outlet icon has been: pressed to turn on the outlet.
  • Page 26 UV Light Timer: This timer controls how long the UV light will remain on after the UV light icon has been  pressed to turn on the UV light. If timer is zero, UV light will stay on until manually turned OFF or window is opened breaking the safety interlock Auto Run Timers: This timer provides the ability to program on a daily basis the start and stop time of the ...
  • Page 27 6.1.5.3 Historical Performance: When press a historical performance text, the system displays downflow and inflow history Downflow History: press downflow history, the system displays the week log data in graphical  form of downflow versus days. OM0296 Revision 3 October2020 Page 27 of 101...
  • Page 28 Inflow History: press downflow history, the system displays the week log data in graphical form of Inflow  versus days Exhaust History: press Exhaust history, the system displays the week log data in graphical form of exhaust  versus days OM0296 Revision 3 October2020 Page 28 of 101...
  • Page 29 6.1.5.4 Calibration/Service A password protected area used by certification or service personnel to set up and calibrate the cabinet for certification or commissioning. 6.1.5.5 Display Setting This menu item provides the ability to alter LCD screen display background contract and audible touch screen, the strings on this screen will be translated to the language configured on the unit OM0296 Revision 3 October2020...
  • Page 30 This menu item provides the ability to alter display features and set date/time. Display Background colors of White, Green, Blue and Gray can be selected. Touch display tone audible feedback can turn on/off. Display brightness can be adjusted. Languages may be selected of English, Spanish, French and German OM0296 Revision 3 October2020 Page 30 of 101...
  • Page 31  Time/Date: This menu item provides the ability to set the time and date displayed on the LCD screen. Time displayed is real time and will not automatically adjust for day light saving time. 6.1.5.6 Change User Password: This menu item provides the ability to change the user password from the default value of 1234. ...
  • Page 32 Set New Password  Retype New Password  OM0296 Revision 3 October2020 Page 32 of 101...
  • Page 33 UV light turned on if installed.  NOTE: If night setback exhaust airflow is reduced by the Building Automation System (BAS) and not by the NuAire Model NU-951-012 valve, it would still be recommended to use the contacts on the main control board to initiate the night setback option to display night setback active, inhibit exhaust alarms, light and internal blower.

  • Page 34: Operating Guidelines

    6.2 Operating Guidelines The intent herein is to present general operational guidelines that will aid in the use of the Laminar Flow Biosafety Cabinet (LFBSC) to control airborne contaminants of low to moderate risk as stated in Technical Report No. FPS 56500000001 prepared by Dow Chemical U.S.A.
  • Page 35 6.2.4 Utilize Unidirectional Airflow The operator must keep two important facts in mind: (1) The air as supplied to the work area through filters from the top, is contaminant free and (2) Airborne contamination generated in the work area is controlled by the unidirectional flow of parallel air streams in a top-to-bottom direction.

  • Page 36: Operating Sequence

    6.3 Operating Sequence 6.3.1 Start Up Turn on cabinet blower and lights, check air intake and exhaust portals of the cabinet to make sure they are unobstructed. The electronic airflow control system will automatically control airflows to specified setpoints.  NOTE: Some cabinets are equipped with ultraviolet (UV) lights.

  • Page 37: Ergonomics

    nutrients, which may support fungus growth, and resulting spore liberation that contaminates the protected work environment. 6.3.7 Paper Catch/Prefilter A permanent paper catch is installed behind the rear divider panel of the work zone. This area forms the return air path to the motor/blower;...

  • Page 38: Hazardous Drug Decontamination Procedure

    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.

  • Page 39: Decontamination

    General Maintenance All maintenance actions on this equipment must be performed by a qualified CAUTION technician who is familiar with the proper maintenance procedures required for this equipment. This includes both certification as well as repair. 7.1 Decontamination No maintenance should be performed on the interior of the LABGARD® ES cabinet (area behind access panels) unless the cabinet has been microbiologically decontaminated, is known to biologically clean, or known to be chemically inert.
  • Page 40 (See section 6.6 for guidelines) Please consult with NuAire, Inc. about any unique contamination problems. Normally, no preventive maintenance is required on the interior of the cabinet (i.e., the area behind the access panel containing the HEPA filters and motor (blower assembly).

  • Page 41: Hepa Filter/Motor Replacement

    "clean". Constant pressure spring-type clamps are used to hold the exhaust filter tightly in place to counteract seal relaxation, while the supply filter employs NuAire's HEPEX pressure plenum. USE ONLY REPLACEMENT FILTERS OF THE SAME RATED FLOW AND SIZE AS ORIGINALLY INSTALLED, TO INSURE PROPER AIRFLOW BALANCE CAN BE ACHIEVED.
  • Page 42 Step 4: To remove the supply filter: Remove plenum screws in front of supply HEPA filter. b. Lift the permanent plenum and hold up with wire strap. Carefully remove the supply filter. DIRECT EXPOSURE SHOULD BE AVOIDED, EVEN THOUGH THE FILTER CAUTION IS IN AN UNCONTAMINATED PLENUM.
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  • Page 44: Airflow Control System Setup & Calibration

    7.5 Airflow Control System Setup and Calibration Failure to calibrate airflow to the specified requirements may CAUTION result in unsafe conditions of performance (i.e. product and/or personnel protection, noise and vibration) 7.5.1 General The operation of the NU-560E cabinet requires that the setup and calibration procedures be performed in order to certify or commission the cabinet for usage.
  • Page 45 The OEM displayed menu item references the LOGO style displayed NuAire being the default. To verify, press CABINET TYPE. The current type of cabinet will be designated. Again to verify, press the correct Type and the Model/Size of the current selected cabinet model will be designated.
  • Page 46 If the LFBSC has a special downflow area (workzone), exhaust duct diameter size or special work access opening window height, these must be entered into the control system to assure the correct display values. Press MENU to access these additional parameters. Select and SAVE appropriate size of each OM0296 Revision 3 October2020 Page 46 of 101...
  • Page 47 Press SET MOTOR TYPE to verify correct setting. Upon a MASTER RESET, the motor type is defaulted to DC ECM Single. The NU-560E Series 1 (230Vac) requires the motor type selected to be DC ECM Single. Always verify motor type when verifying cabinet type. 7.5.2.2 Setpoints/Limits The airflow setpoints and alarm limits may also be verified or altered.
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  • Page 49 Default values for NU-560-400E Default values for NU-560-600E Downflow setpoint - .30 Downflow setpoint - .30 • • • Downflow high limit - .33 • Downflow high limit - .33 Downflow low limit - .27 Downflow low limit - .27 •...
  • Page 50 The blower speed control system adjusts the cabinet's supply volume of airflow while customer supplied exhaust system controls the exhaust volume of airflow. Since it has been NuAire's experience that the filters may not "load" evenly, both adjustments are necessary for proper cabinet performance.
  • Page 51 Step 3: Now, access the calibrate exhaust sensor menu and measure inflow velocity using the recommended procedure found in Table 7.0. If necessary, adjust the exhaust system to achieve the correct inflow velocity. Use Table 7.1 to relate downflow and exhaust/inflow volumes and corresponding average airflow velocities. It is always desirable to achieve airflow values that are set as close as possible to nominal.
  • Page 52 the range, a greater chance for alarm conditions would exist due to its closer proximity to the alarm limits. Press -/+ to change exhaust volume to the value just calculated using the inflow volume.  NOTE: Assume downflow velocity is at the nominal value of 60 fpm for exhaust volume calculation purposes as it will be adjusted during the downflow calibration process.
  • Page 53 60 fpm + 5 fpm. Adjust if necessary. Step 3: Set damper position to 60° on the display. NuAire recommends using the damper position at 60° to minimize static loss and maximum controllability of the system. However, THE...
  • Page 54 DAMPER CAN RANGE FROM 35° TO 75° FOR ITS NOMINAL SETPOINT. ANY POSITION OUTSIDE THIS RANGE WILL SEVERELY LIMIT THE CONTROL SYSTEMS ABILITY TO ACCURATELY CONTROL THE EXHAUST VOLUME. If possible, adjust exhaust volume with damper at 60° for maximum control.
  • Page 55 NOTE: Assume downflow velocity is at the nominal value of 60 fpm for exhaust volume calculation purposes as it will be adjusted during the downflow calibration process. Press SAVE to enter the exhaust volume value. Exit out of calibration menu by pressing the home icon and leave motor/blower off.
  • Page 56 Step 3: Place a velometer in the cabinet workzone on the horizontal plane 4 inches (102mm) above the bottom edge of the window. Spot check several points on the recommended downflow velocity Step 4: Press + or – button of supply duty cycle to adjust blower speed. The objective of this spot check is to obtain the desired downflow average velocity as close as possible to the stated goal of 60 LFPM (.30 m/s).
  • Page 57 NOTE: If night setback exhaust airflow is reduced by the Building Automation System (BAS) and not by the NuAire model NU-951-012 valve, this calibration procedure is not necessary. However, it would still be recommended to use the contacts on the main control board to initiate the night setback option to display night setback active, inhibit exhaust alarms, light, and internal blower.
  • Page 58 back ON/OFF. Press home icon the save screen pop up, press save to enter selection. Step 2: Select CALIBRATE NIGHT SETBACK Step 3: At this point, the night setback is active and the butterfly valve will begin to close. Now measure the inflow volume using a Direct Reading Instrument of inflow velocity measurement method.

  • Page 59: Hepa Filter Leak Test

    7.6 HEPA Filter Leak Test In order to check filter and filter seal integrity, the HEPA filter media and seals must be directly accessible, by the measuring instrument. The challenge material (i.e. PAO) should be supplied over the supply inlet for the supply filter and in the rear center of the workzone over the intake slots for the exhaust filter.

  • Page 60: Airflow Smoke Pattern Test

    7.7 Airflow Smoke Pattern Test The airflow smoke pattern test is performed using a smoke source (i.e. smoke tubes) in and around the cabinet workzone and access opening to determine a visual representation of the cabinet’s containment performance. To perform the test, the smoke source should be passed through the following areas: 1.

  • Page 61: Cleanliness Classification Test For Pharmacy Application

    7.9 Cleanliness Classification Test for Pharmacy Application If this cabinet is going to be used within pharmacy, per USP797 , the cabinet must be tested to assure compliance to ISO 14644-1:2015, Cleanrooms and Associated Controlled Environments, Part 1: Classification of Air Cleanliness .
  • Page 62 (Certification values listed in Table 7.1)  NOTE: Since NuAire cabinets use a full supply diffuser, resulting in uniform airflow velocities, NuAire has found that the average supply velocity and the average downflow velocity are typically found to be the same value or can be related with a small correction factor.
  • Page 63 I.E. NU-560-600E I.E. NU-560-400E Average downflow velocity = 60 fpm Average downflow velocity = 60 fpm Average supply volume velocity = 60 fpm Average supply volume velocity = 60 fpm Supply volume 60 x 11.85 = 711 CFM Supply volume = 60 x 7.81 = 469 CFM Test Data –...
  • Page 64 1122 (1906 CMH) CFM 1200 (2039 CMH) CFM  NOTE: 1: NuAire recommends the cabinet be set up and certified at the stated nominal average inflow. EXAMPLE: NU-560-400E Inflow Volume Measurement / Calibration 1) Inflow volume measured with DIM at cabinet face with blower on and downflow velocity approximately at 60 fpm (.30 m/s), inflow volume = 271cfm (460 CMH).

  • Page 65: Main Control Board Description & Replacement

    7.10 Main Control Board Description & Replacement To access the main control board for fuse or board replacement, remove screws at each upper side of the control center and allow the control center to rotate down, resting on the safety straps. Now the main control board is exposed for service.
  • Page 66 7.10.4 Cabinet Reset The main control board has two software operating resets available for qualified service personnel. The two types are the following: Factory Reset - Resets setpoints and selected option settings. Factory reset should be used in the event the system memory develops an error in operation.
  • Page 67 Select desired function from menu. • • Perform either reset function as selected below. OM0296 Revision 3 October2020 Page 67 of 101...
  • Page 68 Once the MASTER RESET icon is pressed, the display screen will remain the same for approximately a few seconds. Once the reset process is complete the display screen will revert back to the NuAire logo main menu. At this point the cabinet MUST be turned off to complete the process.

  • Page 69: Digital Airflow Sensor Description & Replacement

    7.11 Digital Airflow Sensor Description & Replacement 7.11.1 Downflow Velocity Sensor The airflow sensor function utilizes two thermistors that provide a constant current source. One thermistor is a reference that uses a very low current source. The other thermistor is the airflow measurer that uses a very high current source.
  • Page 70 Step 1: NOTE ALL ERROR MESSAGES. Error message will appear in place if the NuAire logo with “Active Alarms” and the alarm type below. Step 2: VERIFY ERROR MESSAGES. Error messages can be verified by cleaning the error function by either turning the blower or the cabinet on and off.
  • Page 71 8.1 Error Message Troubleshooting Guide Error Message Indicator Correction Sliding window is above its standard working height or Verify standard working height and window micro switch Window Alarm (Window High) micro switch is not operating properly. operation. Airflow Alarm Downflow airflow fell below its lower limit alarm setpoint. Re-certify cabinet to proper airflow setpoints.
  • Page 72 8.2 Calibration/Service Menu 8.2.1 General As with the airflow calibration process, the service menu should only be accessed by a Service Technician that is familiar with the product. Press MENU to access Calibration/Service parameter. Entry into the Calibration/Service functions requires a service password for entry. After pressing the Calibration/Service menu item, a password screen will appear.
  • Page 73 8.2.2.1 Blower/Damper Setup Blower Options The blower options menu allows A QUALIFIED TECHNICIAN to run the cabinet in manual mode. This means with no controls or alarms activated. Manual Blower control: When the manual blower control is on, the downflow and inflow displays will indicate OM0296 Revision 3 October2020...
  • Page 74 Manual Blower Control This parameter allows ONLY THE CABINET TECHNICIAN to run the cabinet in manual mode. This means with no controls or alarms activated. When the manual control is on, the downflow and inflow displays will indicate nominal setpoints. Airflow adjustments can be made in the manual mode by going into airflow calibration and adjusting the blower duty cycle.
  • Page 75 Exhaust Damper Position This parameter allows for the selection to disable the exhaust control/alarm and select a desired damper position when the blower is turned off. Normally when the blower is turned off the exhaust control and alarm function remains active in the B1/B2 configuration. However, if the cabinet is tied into the exhaust blower circuit it is desirable to turn off the exhaust control and alarm function when the blower switch is turned off.
  • Page 76 Note: The redundant pressure switch must also be bypassed for the internal blower to run without exhaust. Remote Override Damper Open This parameter allows or the NU-951 damper to open during a remote override contact closure. Normally the NU-951 damper function will close during a remote override contact closure. However, this option allows the opposite damper function OM0296 Revision 3 October2020...
  • Page 77 8.2.2.2 Service The service setup menu allows a QUALIFIED TECHNICIAN to configure, calibrate and obtain functional service data. Each parameter submenu will be described as well as the display will indicate present and/or default conditions as shown. Run Times This parameter allows the service technician to view, alter, or reset both UV light and motor blower run timer. ...
  • Page 78  Motor Blower Run Time: Indicates how many hours the blower has been ON. Time may be reset or transferred for service purposes. OM0296 Revision 3 October2020 Page 78 of 101...
  • Page 79 Certification Date This parameter allows the service technician to view and update the current certification date. The certification date also has a feature to indicate an advance notice that re-certification is due. Press DUE to enter into the certification required time period screen. Select desired interval of certification required, i.e. No Reminder, 6, 12, 18, or 24 months.
  • Page 80 Filter Status Data This parameter allows the service technician to set the filter status data used to predict filter life availability. Filter status is based on maximum RPM minus the starting RPM (entered by technician) then scaled to current RPM to determine filter percentage availability.
  • Page 81 8.2.2.3 Option Setup The option set up menu allows A QUALIFIED TECHNICIAN to configure several different optional parameters per the menu below. Each parameter sub-menu will be described as well as the display will the default conditions as shown • Alarm Setup •...
  • Page 82 • Alarm Silence Time: This parameter allows for the selection of time to determine how long the audible alarm shall be silenced. The time is displayed in minutes with a programmable range of 1 to 60. • Downflow Alarm Time: This parameter allows for the selection of time to determine how many continuous seconds of an alarm condition occurs before activating an audible and visual alarm.
  • Page 83 All interlocks are enable/disabled by a user through the display • UV Window interlock: This parameter allows for the selection of the window closed switch to be interlocked with the UV light option. When the window interlock is on, the window must be closed for the UV light to operate.
  • Page 84 • Fan Relay interlock: This parameter allows for the selection of the fan relay interlock operation. When the fans relay interlock is on, and the blower switch is pending or blue, the fan relay will be off or not energized. If the fan relay interlock is off and the blower switch is pending or blue, the fan relay will be on or energized.
  • Page 85 • Blower Outlet Interlock: The blower/outlet interlock turns on/off the outlets whenever the blower is turned on/off. The outlet power can no longer be controlled manually  Auxiliary Features This menu item provides the access to aux relay function and accessory outlet functions OM0296 Revision 3 October2020 Page 85 of 101...
  • Page 86 • Aux Relay function: This parameter allows for the selection of the AUX relay function. When the AUX relay is on, the AUX relay function will be identical to the fan relay. When the AUX relay function is off, the AUX relay function provides delay ON/OFF option. •...
  • Page 87 8.2.2.4 Diagnostics The diagnostics menu allows A QUALIFIED TECHNICIAN to exercise the control systems Blower /Sensor Diagnostics, window Diagnostics and General I/O Diagnostics Each of these has its own menu screen to excise the control system. Select menu screen as desired. Blower/Sensor Diagnostics Test outputs allow a service technician to exercise these output functions.
  • Page 88 Window Diagnostic Read inputs all a service technician to exercise or check these input functions. The inputs may be checked by altering the state of the input function (i.e. sliding window position) and monitoring the change on the display. General I/O Diagnostics OM0296 Revision 3 October2020 Page 88 of 101...

  • Page 89: Airflow Sensor Performance Verification

    When the downflow sensor is uncovered, the motor/blower voltage should decrease and airflow readings should be within the calibration range. If the motor/blower voltage does not change, an airflow sensor problem could exist. Please consult with NuAire Technical Service. OM0296 Revision 3 October2020...
  • Page 90 Remote Contacts The NU-560E has several contact closures for remote sensing of various functions. 9.1 Fan Relay The fan relay contacts are dual normally open contact closure outputs which are activated whenever the blower is turned on. Contact ratings are 250 VAC maximum at 2 Amps. 9.2 Alarm Relay The alarm relay contacts are dual normally open contact closure outputs which are activated whenever an airflow alarm condition occurs.

  • Page 91: Ultraviolet Light

    10.0 Optional Equipment 10.1 Ultraviolet Light Ultraviolet light will injure your eyes. Avoid direct viewing at all times. CAUTION Personnel should not be present when ultraviolet lamp is on 10.1.1 Overview The germicidal ultraviolet is primarily intended for the destruction of bacteria and other microorganisms in the air or on directly exposed surfaces.
  • Page 92 Energies Required to Destroy Some Microorganisms By Ultraviolet Radiations(e) Microwatt Microwatt Mold Spores seconds Protozoa seconds per cm/2 per cm/2 Penicillum roqueforti 26,400 Paramecium 200,000(a) Penicillium expansum 22,000 Penicillium digitiatum 88,000 Nematode Eggs 40,000(b) Aspergillus glaucus 88,000 Aspergillus flavus 99,000 Algae 22,000(c) Aspergillus niger...
  • Page 93 11.0 Electrical/Environmental Requirements 11.1 Electrical (Supply voltage fluctuations no to exceed +/- 10%) *NU-560-400E 230VAC, 50/60Hz, 1 Phase, 7 Amps *NU-560-600E 230VAC, 50/60Hz, 1 Phase, 7 Amps *CE Certified 11.2 Operational Performance (for indoor use only) Environment Temperature Range: 60°F-85°F (15°C - 30°C) Environment Humidity: Maximum relative humidity 80% for temperatures up to 31°C decreasing linearly to 50% relative humidity at 40°C...
  • Page 94 12.0 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. ...
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This manual is also suitable for:

Labgard nu-560-400eLabgard nu-560-600e

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