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OM0303
Rev 5 July/2021

Page 52 of 108

7.3 Secondary HEPA Filter/Motor Replacement

The HEPA Filters under normal usage and barring an accident (a puncture), do not need replacement until the efflux
velocity cannot be maintained or the access inflow velocity cannot be maintained at 100 LFPM (.51 m/s) (min.). This may
permit the average downflow velocity to be as low as 55 LFPM (.27 m/s) as long as no point falls below 20% of the average
downflow velocity.

The HEPA Filters should not be replaced until the entire cabinet has been decontaminated or known to be biologically
"clean".

7.3.1

Procedure

Disconnect electrical power from the cabinet before attempting any

maintenance action.

Step 1:

Remove screws at each upper side of the control center and allow the control center to rotate down,

resting on the safety straps. Second, remove the front decorative panel which is held into position by

(3) knurled nuts on the top edge and snap fit bullet catches on the bottom.

Step 2:

Place sliding window into lowest position * and remove front filter panel, which is held into position by

Phillip pan head screws. Once the screws are removed, the panel is held into position by smooth weld

studs located on the top corner of the front filter panel. Use the window stop brackets as handles to

remove the panel.

NOTE: Screws are used in lieu of acorn nuts, and lock washers.

The screws have O-rings and should be replaced if damaged or badly deformed.

The interior of the cabinet is now fully exposed for replacement of the filters and/or motor/blower.

*The lowest window position will require the armrest to be removed. If the cabinet has the power window option,
access the Power Window Test menu to adjust the power window into its lowest position with the armrest
removed. Access Calibration/Service menu, then Service menu, then Power Window menu to Power Window
Test.

Step 3: Filter Removal

It is not always necessary to replace both the supply and exhaust filters at the same time. If during the
course of certifications, the downflow always falls off while the exhaust increases the supply filter is
"loading" faster than the exhaust filter and only the supply filter may need replacement. The opposite
might also happen depending upon many factors.

a. To remove the supply filter:

1. Remove the plenum screws in front of the supply HEPA filter.

2. Lift the permanent plenum and hold up with wire strap.

3. Carefully remove the supply filter. Direct exposure should be avoided.

Dispose of spent HEPA filters properly.

Avoid direct contact to "dirty side" of the filters.

Place in sealed bag and label all waste containers/cartons based on

type of hazard. Follow all Local, State and Federal guidelines for

disposal of HEPA filter solid waste.



CAUTION

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CAUTION

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Содержание LabGard NU-581-400E

Страница 1: ...ow Biosafety Cabinet Models NU 581 400E 500E 600E Bench Console Operation and Maintenance Manual July 2021 Revision 5 Series B 400E 600E models 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 ...

Страница 2: ...ulate contaminants as prescribed in NSF ANSI 49 EN 12469 and DIN 12980 2016 10 Please read this manual carefully to familiarize yourself 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 cabs acsb ca www ebsaweb eu www inspection gc ca www who in...

Страница 3: ...awings 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 numbe...

Страница 4: ...9 Cleanliness Classification Test for Pharmacy Application 7 10 Main Control Board Description and Replacement 7 11 Digital Airflow Sensor Description and Replacement Section No 8 Error Messages Troubleshooting and Option Diagnostics Section No 9 Remote Contacts Section No 10 Optional Equipment 10 1 Ultraviolet Light Section No 11 Electrical Environmental Requirements Section No 12 Disposal and Re...

Страница 5: ...nmental controls as required in the field of biological research or Hazardous Drug chemical containment The LFBSC when used with proper technique is an effective primary engineering control in obtaining the optimum product quality while reducing the potential for exposure of both product and personnel to airborne biological or particulate chemical agents in low to moderate risk hazard research and...

Страница 6: ...ly 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 cabinet so that safety instructions and important information are always accessible Should you encounter problems that are not detailed adequately in the operating instr...

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Страница 8: ...OM0303 Rev 5 July 2021 Page 8 of 108 2 0 Models and Features The model NU 581E LabGard ES HD Class II Type A2 Laminar Flow Biosafety Cabinet is manufactured in four sizes 4 ft 1 2m 5 ft 1 5m 6 ft 1 8m ...

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Страница 10: ...OM0303 Rev 5 July 2021 Page 10 of 108 ...

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Страница 12: ...d 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...

Страница 13: ...accessible for maintenance purposes Do not position the cabinet to prevent access to the power cord The power cord plug serves as the disconnect and should remain readily accessible If the outlet is inaccessible such as a conduit hardwired connection then an appropriate warning label should be applied near the cabinets on off switch to indicate the circuit breaker on the power distribution panel s...

Страница 14: ...lve stem with security tool provided to gain clearance for valve body rotation Add Loctite 242 furnished to the threads and rotate valve body until secure with the valve stem for handle on the left side Re install handle to valve stem 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 s...

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Страница 16: ...aries per cabinet size reference Electrical Environmental Requirements It is recommended that power to the cabinet whether hardwired or plug connected be on its own branch circuit protected with a circuit breaker at the distribution panel near the cabinet A surge protector is strongly recommended if you are experiencing power related faults NOTE THIS CABINET CONTAINS ELECTRONIC BALLASTS FOR THE LE...

Страница 17: ...nstallation assessment tests The testing methods and equipment required are specified on the factory inspection report included with this manual see insert in back cover NOTE IT IS RECOMMENDED THAT THESE TESTS BE PERFORMED BY A QUALIFIED TECHNICIAN WHO IS FAMILIAR WITH THE METHODS AND PROCEDURES FOR TESTING BIOSAFETY CABINETS SEE INSERT NOTE AFTER THE INITIAL CERTIFICATION NUAIRE RECOMMENDS THAT T...

Страница 18: ... Min Max Height Minimum for Transport Width Depth with Control Center And Armrest Removed 86 7 8 2207 92 7 8 2359 79 3 8 2016 54 7 8 1394 33 838 86 7 8 2207 92 7 8 2359 79 3 8 2016 66 7 8 1699 33 838 86 7 8 2207 92 7 8 2359 79 3 8 2016 78 7 8 2003 33 838 Work Access Opening Inches mm Standard Opening Height Standard Inflow Velocity 8 203 105 FPM 53 m s 8 203 105 FPM 53 m s 8 203 105 FPM 53 m s Wor...

Страница 19: ...ly compensates for filter loading voltage variances and other environmental effects A second digital dual thermistor airflow sensor in the exhaust airstream monitors for inflow velocity Both downflow and inflow are displayed on the TOUCHLINK LCD screen The control system also monitors the sliding window position with a micro switch for both window high low and window closed positions The control s...

Страница 20: ...e the blower icon is selected the password menu will appear After pressing the blower icon a password screen will appear The default password is 1234 Once the password is entered the Run Mode screen will appear The Run Mode screen will display airflow setpoints and warm up with a 2 minute countdown timer However the aseptic cleaning process may begin if the sliding window is raised an audible and ...

Страница 21: ...into a ring back cycle of once every 2 seconds Pressing the alarm silence icon will silence the audible alarm for 15 minutes then into a ring back cycle of once every 2 seconds Alarm Types The middle of the display just below the icons is the message area that will indicate alarms errors or other notable conditions Since the message area is limited to one line of text only the highest priority mes...

Страница 22: ...ssed will provide a list of menu items for various TouchLink functions 6 1 6 1 Setpoint Limits 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 ...

Страница 23: ...ons A description of each timer function is provided below Pressing the time area on the menu will bring up an keypad for time entry for each function 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 ...

Страница 24: ...essed to turn on the outlet If timer is zero the outlet will stay on until turned OFF 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 ...

Страница 25: ...l automatically turn on and off together on a programmed schedule Once into the auto timer menu select the desired day for the auto timer to function If multiple days are desired each day will be required to be set individually Once into the selected day press on window to enter the on off times Use the keypad to enter hours or minutes Press menu icon SAVE after each time entry Repeat auto timer f...

Страница 26: ...6 1 6 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 ...

Страница 27: ...OM0303 Rev 5 July 2021 Page 27 of 108 Inflow History press downflow history the system displays the week log data in graphical form of Inflow versus days ...

Страница 28: ...vides 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 ...

Страница 29: ...t 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 6 6 Change User Password This menu item provides the ability to change the user password from the default value of 1234 Set Password Enter Old Password ...

Страница 30: ...OM0303 Rev 5 July 2021 Page 30 of 108 Set New Password Retype new password ...

Страница 31: ... position The power window also incorporates a safety auto reverse feature to eliminate any pinch hazard Operating the power window is performed by pressing either the UP or DOWN window icon The travel is determined by the length of time the icon is pressed A short press and release will make the window move a short distance A long press and release will make the window move to the next standard o...

Страница 32: ... evaluated by appropriate safety personnel 6 2 2 Minimize Penetration of Air Curtain The minimum number of items necessary should be placed into the cabinet to prevent overloading but the work should also be planned to minimize the number of times an operator s hands and arms must enter and leave the air curtain at the open face The ideal situation is to have everything needed for the complete pro...

Страница 33: ...is precaution is merely an extension of good aseptic technique as practiced on open bench tops The good laboratory practices designed to minimize creation and or release of aerosols to the environment should not be discontinued Items of equipment in direct contact with the etiologic agent must remain in the cabinet until enclosed or until surface decontaminated Trays of discard pipettes must be co...

Страница 34: ...n some installations an additional advantage is obtained from purification filtration of the room air circulated through the equipment Because of this characteristic contributing to the quality of the laboratory environment some owners of LFBSC leave them in operation beyond the time of actual use 6 3 2 Wipe Down The interior surfaces of the workspace should next be disinfected see Cleaning Proced...

Страница 35: ... performed prior to removing the needle from the stopper of the vial e A non splash collection vessel should be available in the Biosafety cabinet to discard excess drug solutions 6 3 6 Terminal Purging Wipe Down Following completion of work allow the cabinet to run for 2 3 minute period without personnel activity to purge the cabinet A surface disinfection of the interior surfaces see Cleaning Pr...

Страница 36: ...nctionality 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 bl...

Страница 37: ...perforated metal diffuser screen from the underside of the supply HEPA filter and place on the cabinet work tray NOTE Depending on the model the diffuser screen is secured to the cabinet by 8 32 screws or 1 4 20 acorn nuts 3 places It is purposely a tight fit and is secured to the back wall with projecting threadless studs e Clean both sides of the perforated metal diffuser screen and remove it fr...

Страница 38: ...st be performed only by specially trained and authorized service personnel in accordance with applicable national safety regulations The formaldehyde is vaporized within the tightly sealed sample chamber The quantity of the applied formaldehyde depends on the volume of the sample chamber in the safety cabinet that is to be disinfected The formaldehyde evaporates immediately after reaching its boil...

Страница 39: ...s started by accessing the CABINET DECONTAMINATION on the calibration service menu AUTO DECON H2O2 CD The Auto Decon process requires the use of Front and Top Seal Plates Seal plates for BSC s are sometimes part of auto decon process kits from decon process system Nuaire also offers custom solutions for multiple cabinet sites Please contact Nuaire Technical Service for further assistance ...

Страница 40: ... via the upper and lower fasteners Refer to BCD 12281 At this point the sliding window assembly can be removed 4 Remove exhaust sensor shrouds 5 Remove the diffuser screen some methods of manual decon process have been shown to oxidize the diffuser and gasket around perimeter of workzone 6 Place decontamination equipment inside the work area Reference decontamination procedure per NSF ANSI 49 Anne...

Страница 41: ...be wiped clean with a suitable tissue and water after each use 3 Gowns A protective garment must be worn The garment should be made of lint free low permeability fabric and must have a closed front long sleeves and elastic or knit closed cuffs Tyvek isolation gowns are one example of an acceptable garment The garment must be worn outside the work area Disposable gowns are preferred over reusable F...

Страница 42: ...during the entire decon cycle To validate two decon processes and associated cabinet set up procedure Nuaire utilized a Bioquell Clarus II H O and a Steris X10 The following process was performed by the Bioquell Clarus II using the LabGard ES Model NU 543 600E 1 Remove armrest via fasteners 2 Remove exhaust shroud and sensor 3 Seal top and front openings using either heavy plastic and duct tape or...

Страница 43: ...OM0303 Rev 5 July 2021 Page 43 of 108 ...

Страница 44: ...dges of the front window sealed with a low residue tape 6 Tubing connected to the inlet and outlet of X10 7 Insertion of Hydrogen Peroxide H2O2 sterilant cup and desiccant cartridge to X10 8 Current BSC process selected Decontamination Process 9 The X10 will perform one 1 Preheat Dehumidification Decontamination and Aeration after start of the program 10 Preheat The cabinet is heated to 31 C 11 De...

Страница 45: ...OM0303 Rev 5 July 2021 Page 45 of 108 Auto Decon Set Up Select AUTO DECON SET UP to enter the specific Decon cycle parameters Select DECON FULL CYCLE TIME ...

Страница 46: ...er run time at each interval as required by the automated decon process used Decon blower duty cycle allows the cabinet blower to run at a lower speed when used during the decontamination process The default setting has been determined as a minimum value but adjustments can be made if necessary ...

Страница 47: ... Decon Run To initiate the auto decon run cycle select and enter AUTO DECON RUN To prevent unauthorized entry into the auto decon cycle the password must be entered The password would be the same as the blower password or defaulted with 1 2 3 4 ...

Страница 48: ... auto decon H2O2 CD cycle Once the cycle has started it is desirable to let the cycle run until finished The display will indicate what portion of the cycle it s in and the time remaining It is possible to abort the cycle by pressing cancel A password screen will appear as verification that the cycle abortion is valid Enter same blower password or defaulted as 1 2 3 4 ...

Страница 49: ...dent a puncture do not need replacement until the efflux velocity cannot be maintained or the access inflow velocity cannot be maintained at 100 LFPM 51 m s min This may permit the average downflow velocity to be as low as 55 LFPM 27 m s as long as no point falls below 20 of the average downflow velocity If the above airflow requirements cannot be maintained use the following procedure to replace ...

Страница 50: ... Rotate both of the prefilter release clamps 90 cleaner and place wipe in prefilter Install prefilter seal over the used prefilter 6b Pull up and out prefilter of its position and lay on its Side to be placed into bag 7 Place plastic bag over prefilter gather at one end and tie up with wire tie ...

Страница 51: ...amaged i e torn replace it Nuaire part number A 3071 25 Proceed to install HEPA prefilter making sure filter is seated level onto the gasket NOTE Only use same type of HEPA prefilter to assure proper function of the cabinet 10 Turn to engage stainless hold down clamps 2 and replace protective screen 11 Repeat the process for each HEPA prefilter as needed until complete See section 7 6 1 for HEPA p...

Страница 52: ... handles to remove the panel NOTE Screws are used in lieu of acorn nuts and lock washers The screws have O rings and should be replaced if damaged or badly deformed The interior of the cabinet is now fully exposed for replacement of the filters and or motor blower The lowest window position will require the armrest to be removed If the cabinet has the power window option access the Power Window Te...

Страница 53: ...connect electrical connections to the motor remove the HEPEX pressure plenum and unbolt the motor blower assembly from the roof of the cabinet 4 places Always inspect the rubber isolation motor mounts and replace those that are cracked or visibly show stress b Replace the motor exactly as originally installed in the blower housing paying particular attention to the correct electrical connections s...

Страница 54: ... of fall if a window counterbalance experiences a fault is also required to assure proper window function see Sliding Window Retention Verification in the Inspection Report 7 5 Airflow Control System Setup and Calibration 7 5 1 General The operation of the NU 581E cabinet requires that the setup and calibration procedures be performed in order to certify or commission the cabinet for usage The set...

Страница 55: ...e The cabinet type can be verified in the control system and is factory set and shouldn t require alteration The cabinet type default information controls unit of measure setpoints and limits based on the type and size of cabinet To verify press Service then Factory Setup to verify the current type of cabinet is correct If selection or change is required Press the current model to begin the proces...

Страница 56: ...ss SET MOTOR TYPE to verify correct setting Upon a MASTER RESET the motor type is defaulted to DC ECM Single The NU 581E Series 1 115Vac requires the motor type selected to be DC ECM Single Always verify motor type when verifying cabinet type ...

Страница 57: ...etpoint establishes the airflow values that are to be maintained The high low limits establish the alarm boundaries from the nominal setpoint The default values have been established based upon the performance specifications and cabinet component tolerances Entry into the setpoints limits functions requires a service password for entry The default password is 9876 Default values for NU 581E Downfl...

Страница 58: ...while the choke adjusts or balances the exhaust airflow as well as makes up for filter resistance tolerances Since it has been Nuaire s experience that the filters may not load evenly both adjustments are necessary for proper cabinet performance The cabinet is considered to be certifiable if the following airflow measurements are present a Downflow average 60 LFPM 5 LFPM 30 m s 025 m s b Inflow av...

Страница 59: ...one minute or until downflow readings are steady 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 test grid found in table 7 0 Step 4 Press to adjust supply duty cycle The objective of this spot check is to obtain the desired downflow average velocity as close a...

Страница 60: ... RELATED TO THE AIRFLOW MONITOR SENSOR CALIBRATIONS Step 1 Access sensor setup menu Step 2 Now measure the inflow velocity using the recommended procedure found in Table 7 0 If necessary adjust the exhaust filter choke located under the front decorative panel to achieve the correct average inflow velocity within the stated range of 105 5 LFPM 53 025 m s IF THE AVERAGE INFLOW VELOCITY IS ON THE OUT...

Страница 61: ...desired a spot check in the downflow velocity may be performed if felt necessary Once entire cabinet has been balanced tighten liquid tight fasteners around choke adjustment shaft 7 5 3 3 Alarm Verification If desired the alarm setpoint can be verified by entering into the alarm verification menu The airflow alarm is always active in this menu so if the blower is turned on in this menu an airflow ...

Страница 62: ...13 1090 46 850 1190 50 787 1290 54 724 1390 58 661 1490 62 598 1590 66 535 1690 3 937 100 7 874 200 11 811 300 15 748 400 19 685 500 b2 Procedure to be used after the initial installation certification and all subsequent certifications except for a certification directly following a HEPA filter change Supply filter efflux is measured on a grid in a horizontal plane 100mm above the bottom edge of t...

Страница 63: ...grid Use the correction factor table to calculate the inflow velocity c Test Data Inches mm 1 DIM Measurement Inflow Volume ft 3 min m3 s Access Opening ft 2 m2 Inflow Velocity ft min m s 2 Constricted 3 inch 76mm high access opening measurement Inches mm 400 4 102 8 264 210 12 528 318 16 792 426 21 056 535 25 320 643 29 584 751 33 848 860 38 112 968 42 375 1076 500 4 102 8 198 208 12 396 315 16 5...

Страница 64: ...nge material must be introduced PAO or a similar challenge that can be detected using a particle counter upstream of the primary filters The scanning wand is used to dispense the particle challenge directly at a small section of each filter in order to help isolate the position of any leaks The following is needed to help check the filter integrity Particle counter Particle generator Sliding windo...

Страница 65: ...lter integrity check It is desirable to enter the Calibration Service menu and turn on the blower 7 6 3 Exhaust Filter The exhaust filter is typically more difficult to check since protective grills charcoal filters or exhaust transitions could cover the filter Access panels are usually provided and should be removed If an air gap exhaust transition is provided the air gap must be sealed with duct...

Страница 66: ...nter line of the work surface at a height of 4 inches 102mm above the top of the access opening 2 A smoke source shall be passed from one end of the cabinet to the other 1 inch 25mm just inside the view screen at a height 6 inches 152mm above the top of the access opening 3 Pass a smoke source along the edges of the entire perimeter of the work opening approximately 1 5 inches 38mm outside the cab...

Страница 67: ...ontrol test points using a voltmeter Step 2 Using the primary or secondary inflow test method lower the speed control voltage to reduce the inflow by 20 from the certified testing value Step 3 Verify that the alarm activates when the inflow is dropped to this point Step 4 Adjust alarm setpoint as necessary as instructed by the alarm manufacturer procedures Step 5 Return the speed control to its ce...

Страница 68: ...c compounding manipulations At Rest Particle Count Test Take 5 test points in 1 minute intervals on a grid in a horizontal plane as measured approximately 6 inches 152mm above the worksurface The grid location is designed as the workzone center point and each corner measured 6 inches 152mm from the inside perimeter Record the 5 particle count values for each of the test points over the 1 minute sa...

Страница 69: ...4 INCH 5 X 20MM 5 X 20MM NU 581 400E 15 AMPS 3 AMPS 2 1 AMP NU 581 500E 15 AMPS 3 AMPS 2 1 AMP NU 581 600E 15 AMPS 3 AMPS 2 1 AMP 7 10 3 Main Control Board Replacement Note All setup and calibration data will be lost the memory reinitialized to the default values and all control functions reset to an initial cabinet power condition If possible before the main control board replacement it would be ...

Страница 70: ...an error in operation Cabinet type motor type and calibration data will not be affected with this reset Master Reset Resets all calibration cabinet type motor type sensor data and options settings back to default settings Master reset should only need to be used for a main control board replacement After pressing the Calibration Service menu item a password screen will appear The default password ...

Страница 71: ...0303 Rev 5 July 2021 Page 71 of 108 Select desired function from menu Perform either reset function as selected below Once factory reset is complete return to Calibration Service menu to enter any options ...

Страница 72: ...ain menu At this point the cabinet MUST be turned off to complete the process Either unplug the cabinet or use the power switch within the control center to turn off the cabinet Turn the cabinet back on the display screen will remain blank for up to a minute then will indicate Power Loss Alert press the screen to clear the message and return to the Calibration Service menu to enter cabinet type an...

Страница 73: ...any maintenance action The airflow sensors are removed by turning the locking ring counterclockwise and gently pulling the sensor away from the connector To reattach the airflow sensor turn sensor in keyed connector until key matches push in and turn the locking ring clockwise until ring locks Once the new sensor s have been replaced proceed to airflow calibration 8 0 Error Messages Troubleshootin...

Страница 74: ... main control bd Display indicates Remote Override Active Indicates that the remote override is activated preventing the usage of the cabinet Power Loss Alert Indicates a power interruption has occurred Press display to clear message Cabinet outlets won t turn on Check outlet fuse located on main control board Check voltage coming out of main control board Cabinet ultraviolet light won t turn on C...

Страница 75: ...djust display brightness screen Run Time Failure Indicates a temporary microprocessor issue Clean alarm a see it reoccurs check line voltage to control board replace control board Recertification Due Past Due Reset certification date in calibration service menu Blank Display Audible Visual Alarms Active Microprocessor Failure Cycle cabinet power OFF ON Replace control board ...

Страница 76: ...ng the Calibration Service menu item a password screen will appear The default password is 9876 Once the service password is entered the Calibration Service menu will appear To exit either press the menu or home icon One additional feature for service technicians is to bypass the whole 2 minute warmup time By pressing the word warmup the system will move directly to run It is recommended that at l...

Страница 77: ...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 The blower duty cycle will remain constant in manual mode The display will also indicate the manual control is activated When the m...

Страница 78: ...ff the blower may be turned on and off without restriction Night Setback setup The night setback setup menu item provides an access to night setback option and night setback Calibration Night setback option The night setback option is enables night setback by turning to ON When night setback option turned ON the night setback icon displays on home screen ...

Страница 79: ...etback calibration The night setback calibration is calibrated as a percentage of the nominal setpoint and should be adjusted during the certification process to the desired level The default for night set back downflow velocity is 0 fpm 0 15 mps ...

Страница 80: ...ce 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 ...

Страница 81: ...OM0303 Rev 5 July 2021 Page 81 of 108 UV Light Run Time UV light run time value Reset if replacing the UV lamp Blower Motor Run Time Blower Motor Run time or enter old value if replacing control board ...

Страница 82: ...ication time period Filter Maintenance 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 Starting RPM data may be entered at any time for service purposes ...

Страница 83: ...y Setup 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 ...

Страница 84: ...e designated alarm silence time i e default time is 15 minutes When the alarm silence function is off airflow alarms cannot be silenced The alarm silence key will only appear for window high alarms typically used for cleaning activities o 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 wit...

Страница 85: ...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 The time is displayed in seconds with a programmable range from 2 to 12 seconds Interlock Features ...

Страница 86: ...erlock is on the window must be closed for the UV light to operate When the window interlock is off the UV light can be turned on regardless of the window position NOTE In addition to the TOUCHLINK system UV window interlock there is a double redundant UV window interlock relay To override the UV window interlock for service purposes only both interlocks must be changed through the TOUCHLINK syste...

Страница 87: ... to run when the window is closed o 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 In either case the fan relay will ...

Страница 88: ...lower When the blower FL light interlock is on the LED light operation will be interlocked to the blower When the blower FL light interlock is off the LED light can be turned on at any time o 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 ...

Страница 89: ...ndow closure Once the sliding window is closed the LED light will be disabled and the airflow will be reduced to a percentage of the normal setpoint NOTE Blower window interlock must be turned off to allow the night setback function to operate Auxiliary Features This parameter allows the access to turn on or off the auxiliary relay function accessory outlet and power window ...

Страница 90: ...e identical to the fan relay When the AUX relay function is off the AUX relay function provides delay On Off option o Accessory Outlet This parameter allows for the selection of the power connection that supplies power to the exhaust decon chamber to be interlocked to the blower This parameter would only be used in special cases and does not affect operation during an auto decon cycle ...

Страница 91: ...isplay menu to indicate the power window up and down icons The power window option functions using a 24 Vdc motor and internal feedback encoder to determine window position The power window also incorporates a safety auto reverse feature to eliminate any pinch hazard Select power window option on a window icon up and down will show on main screen when the power window off the window icon disappear...

Страница 92: ...ostics The General input and output diagnostics menu allows A QUALIFIED TECHNICIAN to exercise the control system s inputs and outputs Blower Sensor Diagnostic Blower sensor diagnostics reports the current blower and sensor function information ...

Страница 93: ... points or move into desired access opening height default window height is 10 inches 254mm Then the Auto Cal can be used to lock in the window position based on the activation points of the window high and low microswitches The Auto Cal will run a sequence first lowering the window to the window low position the raise the window to window high position and back down to the work access opening hei...

Страница 94: ...3mm past switch deactivation Bottom Middle Window Low Alarm Continues to travel up for 1 7 8 48mm past switch deactivation Used only with power window option Bottom Window Closed Stops when deactivates General I O Diagnostics Test outputs allow a service technician to exercise these output functions Pressing TOGGLE will turn on and off the functions Press button to select the test output to select...

Страница 95: ...nd then remove This action will cause the cabinet to go into a downflow alarm condition The exhaust airflow reading should increase during this test However the downflow reading should go down to zero on the display 0 There should also be a noticeable increase in motor blower noise It would also be recommended to monitor motor blower voltage during the test The motor blower voltage should be monit...

Страница 96: ... and normally closed contact closure outputs which are activated whenever the bower is turned on However the AUX relay does have some conditional logic programmed The relay will activate whenever the blower is turned on and stay on unless after 5 minutes there is a low exhaust alarm then the relay will deactivate If exhaust is sufficient the relay will stay active If the blower is then turned off ...

Страница 97: ...located on the front panel The sliding window is interlocked to the ultraviolet light so when the sliding window is raised the ultraviolet light will turn off If operational time duration is known the timer can be used in conjunction with the ultraviolet light to time out the ultraviolet light operation This can be accomplished by first turning on the ultraviolet light Then set the timer to the de...

Страница 98: ...Strep hermolyticus alpha type 5 500 Staphylococcus aureus 6 600 Staphylococcus albus 5 720 Micrococcus sphaeroides 15 400 Sarcina lutea 26 400 Pseudomonas fluorescens 7 040 Escherichia coli 7 040 Proteus vulgaris 7 480 Serratia marcescens 6 160 Bacillus subtilis 11 000 Bacillus subtilis spores 22 000 Spirillum rubrum 6 160 References a Luckiesh Matthew 1946 Application of Germicidal Ethyemal and I...

Страница 99: ... 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 11 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...

Страница 100: ...ll Stainless Steel Worksurface Stainless Steel Window Faring Stainless Steel Window Glides HDPE Window Safety Glass Window Frame Stainless Steel Front Service Panel Painted Steel Front Decorative Panel Painted Steel Control Center Painted Steel Supply Diffuser Aluminum Exhaust Filter Aluminum HEPA Filter Frames Painted Steel Hepex Bag PVC Blower Wheel Housing Steel Motor Various Steel Printed Wiri...

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