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Use and Service of DC ECM Motors Miscellaneous Service Updates

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Presentation on theme: "Use and Service of DC ECM Motors Miscellaneous Service Updates"— Presentation transcript:

1 Use and Service of DC ECM Motors Miscellaneous Service Updates
LARGE GROUP MANUFACTURERS UPDATE SATURDAY – APRIL 14, 2012 8:00 A.M. – 10:00 A.M. Topics New BSC Model NU-481 Use and Service of DC ECM Motors New Slanted A2 – NU-475, 477, 480 Miscellaneous Service Updates

2 Receiving TB’s and have access to Website’s secure area?
NUAIRE WEBSITE Receiving TB’s and have access to Website’s secure area? Let us know and provide current contact info if you need access.

3 NUAIRE WEBSITE Website – Support Manuals Technical Articles
Technical Bulletins Service Companies Training (On-line Registration) Service Procedures Warranty Information Cannot log on – Call Service for help

4 NU-475, NU-477, NU-480/481 A2 SLANTED FRONT
TouchLink Control (NU-480/481) NU-475 (NU-425 Controls) NU-477 (NU-437 Controls) 60 fpm Down-flow 105 fpm Inflow DC-ECM Motor 3” Constricted Inflow Method Permanent Pressure Plenum

5 CELLGARD™ HD NU-481 ES The CellGard HD (Hazardous Drug) ES (Energy Saver) Class II, Type A2 Biological Safety Cabinet offers personnel, product and environmental protection for handling of hazardous particulate drugs and powders

6 CELLGARD™ HD NU-481 ES AIR FLOW
Clean Oval Canister HEPA Filtered Air Clean HEPA Filtered Air Room Air Contaminated Work Surface Air

7 CELLGARD™ HD NU-481 ES The Ease of Bag-In / Bag-Out
Remove Work Surface Remove paper catch grill over each oval HEPA prefilter Seal contaminated interior of each oval HEPA prefilter Remove four (4) fasteners per each oval HEPA prefilter Bag-Out used oval HEPA prefilter and replace

8 CELLGARD™ HD NU-481 ES PRIMARY HEPA FILTER INTEGRITY TESTING
PAO Wand Filter Gard

9 CELLGARD™ HD NU-481 ES PRIMARY HEPA FILTER INTEGRITY TESTING
Set the NU-481 into calibration mode Go to Sensor Setup / Calibrate Downflow Sensor / Blower Duty Cycle Set Blower Duty cycle to the RPM at the current calibrated airflow velocity Keep blower at this RPM (constant) throughout testing process Remove the work tray

10 CELLGARD™ HD NU-481 ES PRIMARY HEPA FILTER INTEGRITY TESTING
INTERNAL REFERENCE CALCULATIONS Model Size *Supply Area (ft2)(m2) Inflow Area (ft2)(m2) 8” Access Inflow Area (ft2)(m2) 10” Access 400 8.53 (.242) 2.38 (.221) 3.22 (.299) 500 10.74 (.304) 3.15 (.293) 4.05 (.376) 600 12.95 (.367) 3.92 (.364) 4.89 (.454) *Measured 4 Inches (102mm) above the bottom edge of the window Laskin Nozzle Concentration Formula # Nozzles x 135 CFM x 100 ug/L Challenge Downflow (CFM) + Exhaust (CFM) Concentration (ug/L) # Nozzles x 229 CMH x 100 ug/L Challenge Downflow (CMH) + Exhaust CMF) Concentration (ug/L) =

11 CELLGARD™ HD NU-481 ES PRIMARY HEPA FILTER INTEGRITY TESTING
Filter Gard is used to direct the PAO from the wand into one area of prefilter at a time Filter Gard can be used for initial certification and after 1st annual certification Replace HEPEX Gard (B ) Fiberglass rods can be re-used

12 CELLGARD™ HD NU-481 ES PRIMARY HEPA FILTER INTEGRITY TESTING
Move PAO Wand throughout filter, rotating the filter guard Leak is detected if a sustained leak rate greater than .005 is detected at the challenge port on top of the cabinet

13 ELECTRONICALLY COMMUTATED MOTOR
ECM 5.0 Genteq Motor 1450 RPM 10” Forward Curved Fan (was 9”) PWM (DC signal) varies the motor speed Motor Control, Monitors RPM and torque which delivers constant air volume as HEPA Filters load NU-437, NU-440, NU-475, NU-477, NU-480, NU-481 (A2 units) NU-427 (B1), NU-430, NU-435 (B2) - DC ECM Motor is standard Optional on NU-425 (A2)

14 DC ECM CONTROL SYSTEM A2 NU-425 – ES (Energy Saver) - Optional & Field Upgradeable NU-475, NU-629 – ES (Energy Saver) – Standard

15 425 TYPE DC SPEED CONTROLLER OPTIONAL ON NU-425
12 Volt DC Power supply Automatic Constant Airflow volume Thru motor rpm feedback Manual Airflow volume adjustment (POT) On-board jumper positions for correct cabinet size Speed Cont. locks in setting after 1 Minute idle or certifier sets via push button & LED turns off

16 425 TYPE DC MOTOR SPEED CONTROLLER SYSTEM

17 425 TYPE DC MOTOR SPEED CONTROLLER SYSTEM

18 SPEED CONTROLLER JUMPERS
3’ 4’ 1 5’ 6’ 0 = Not Jumped 1 = Jumped

19 GENERAL AIRFLOW BOARD (GAF)
NU-437, NU-477 (A2) – ES (Energy) -Saver Standard GAF Also used in NU-813 , NU-126 , NU Change Station & All Isolators models

20 GAF CONTOR BOARD MULTIPLE BLOWER CONTROLS
AC Motor Output: Older Series NU-437 AC Impeller Output: Older Series NU-813; NU-126; NU-619 and Isolators DC ECM Motor Output: Std. on Current NU-437, NU-477 DC EC Impeller Output: Std. on All Isolators (S-10^) NR/NTE/PR; NU-813, NU-126, NU-619 New Software Release (Rev ), STB0201 Corrects increase motor speed (PWM signal) due to site specific events, (i.e. power fluctuations, frequent on/off cycles) STB0202: RF Upgrade Installation Instructions

21 GAF MAIN CONTOR BOARD LAYOUT
AC Blower POT. Board AC Input Connection EC #1 VDC T.P.’s EC Connector & POT #1 EC Connector and POT #2 EC #2 DC ECM Blower 4 Pin Motor Control Connector AC T.P.’s AC Blower Output

22 GAF AC/D MOTOR / IMPELLER AIRFLOW ADJUSTMENTS
AC motor – Airflow adjusted via the POT located under heat-sink DC ECM motors - Airflow adjusted via sequence of control panel keys actions. Cal mode = press & hold Alarm Silence key, hit FL light on, light off key; Increase Airflow = UV key and decrease = FL light key DC EC impellers utilize another set of potentiometers, on GAF board, Std. all Isolators (S-10^)

23 GAF Control board EC Impeller Connections

24 NU-437 (SERIES 60^) / 477 (A2) AIRFLOW CALIBRATION
The DC-ECM System works like this: AC voltage is applied directly to the DC motor’s control module The motor control module (Microprocessor) converts the AC to DC for Internal electronics and to power the motor In addition, there is a second electrical cable that goes from the Main Control Board’s speed controller DC output to the motor. This generates a pulse-width-modulation (PWM) 2.5 – 8 VDC control signal and returns an RPM feedback signal from the motor to the speed controller CKT.

25 GAF CONTROL BOARD JUMPERS DC ECM CONTROL SIGNALS
Nite Care Setback

26 GAF BOARD AC OR DC JUMPER WIRE
Cut Jumper Wire for AC Motor

27 NU-437 / 477 (A2) CALIBRATION AIRFLOW
Once the airflow calibration is complete – calibrate the FlowGard Airflow Monitor Press and hold ( ) and ( ) arrow keys simultaneously for 3 seconds until the center green LED blinks. Allow the Unit to run for a minimum of 2 minutes. Press RESET Key to enter the nominal airflow value; the Green LED will stop blinking and display normally. This sets the high/low alarm limits +/-0.13 w.g. from nominal. Reference the operation manual for the NU-437/477 for more in-depth information and calibration procedures. If you require help, or have questions, contact NuAire’s Technical Support Depart.

28 BSCC TOUCHLINK AIRFLOW CONTROL SYSTEM

29 BSCC CONTROL BOARD DC ECM Output: NU-440 (S-60^); NU-480, NU-481 (A2)
NU-430/435 (B2) (S – 60^); NU-427 (B1) (S-60^) Note: Control Board is Backwards Compatible to all TouchLinks cabinets

30 TOUCHLINK SOFTWARE UPDATES
New Revision Notifications are sent out to all service organizations New Revisions are available free of charge Use RF484 to order latest revision and cable connections Latest TouchLink Software 61N.138N. (June 2011) Selection for AC or DC Motor Screen Saver display update Air Flow Sensor – Comm/Sensor error messages Down Flow Sensor - Averaging time/Alarm time adjustable Filter Life available in the Calibration/Service Menu Electrical power harmonic distortion compensating software

31 NEW TOUCHLINK CALIBRATION CARD
TouchLink - Calibration and Reset Procedures The TouchLink System is a Liquid Crystal Display (LCD) that is menu driven and thus you need to enter specific menus to accomplish the maintenance tasks required. Refer to the appropriate O & M Manual for additional in depth information on a specific model. This is to be used as a reference guide, there may be some variances due to software revision levels. From the main display hit the Menu ICON to advance to other displays. Hit the Menu ICON to return to previous displays Cabinet Type/Motor Type - Press MENU from the main display - Select CALIBRATION/SERVICE, enter password 9876, and press ENTER - Select CABINET TYPE - Select the type of cabinet; i.e. A2, B1, B2. Types NOT ending with a letters (D,E,G) are for 115 VAC systems. - Select the model of cabinet - Hit SAVE - Press MENU - Press SET MOTOR TYPE (If available) - Select AC or DC MOTOR Press SAVE Find Sensors - Used for both calibration and sensor replacement - Go into CALIBRATION /SERVICE, enter password 9876, press ENTER - Select SENSOR SETUP - Select FIND DOWNFLOW SENSOR - Power down cabinet - Remove the 4 pin exhaust probe connector from the main control board - Power up and tap displays “Power Loss Alert” - Select FIND NEW DOWNFLOW SENSOR - Press LEARN - Acknowledge that down flow sensor is found. If not, repeat previous steps. - Reconnect 4 pin exhaust probe connector back on main control board

32 CLASS II TYPE A2 CANOPY EXHAUST TRANSITIONS

33 CANOPY EXHAUST TRANSITIONS
Traditional Fixed Flow NU-906 / 907 / 908 (NU-475 / 477 / 480 / 481) NU-916 / 917 / 918 (NU-425 / 437 / 440) NU-926 / 927 / 928 (NU-407 / 602) New Variable Flow NU-911 (NU-475 / 477 / 480 / 481) NU-921 (NU-425 / 437 / 440)

34 VARIABLE FLOW CANOPY (VFC)
Low profile (5” housing, 8½” overall) Built-in low airflow alarm Variable air gap range (25 to 250cfm)

35 VFC FUNCTION / OPTIONS

36 VFC SETUP INSTRUCTIONS
Note: VFC Setup adjustment should be made with cabinet set at nominal airflows Adjust slide plates and/or exhaust volume desired so average velocity measured in the center of the (3) test points of either side is between 150fpm (.76mps) and 550fpm (2.8mps) Verify containment with the capture of smoke Verify low exhaust alarm with loss of smoke capture with in 15 seconds

37 VFC INTERFACE / SERVICE
Alarm contacts Audible alarm silence contacts Front panel access for filter testing Decon options

38 NU-911/921 VFC TRANSITIONS

39 NU-602

40 NU-602 NEW LIFT SYSTEM

41 NU-602 NEW LIFT SYSTEM

42 NU-602 RF Kit to convert older series actuators
Re-Zeros every time unit is fully retracted

43 NU-612 / 617 / 619 SMALL ANIMAL CAGE CHANGING STATIONS

44 NU-612 / 617 / 619 Preventative Maintenance Check List

45 NU-612 / 617 / 619 PREVENTATIVE MAINTENANCE CASTER INSPECTION REF
NU-612 / 617 / 619 PREVENTATIVE MAINTENANCE CASTER INSPECTION REF. STB0185 / STB0214

46 NU-612/617 CASTER FAILURES REF. STB0185

47 NU-612 / 617 / 619 P.M.C.I. REF. STB0185 / STB0214

48 PHARMAGARD

49 OUTER DOOR HINGE BOLTS PR-797 – Inspect outer door hinge bolts for wear during normal certification – replace as needed – STB0191 NuAire provides replacement bolts at No Charge – RF525 – keep some in your stock

50 INTER-CHAMBER DOOR Inter-chamber door not staying up – RF 508/509/510 Available at N/C, replace during normal certification for improved latching PR797 Series 3 – 5 RF508 NR797 Series 3 – 7 RF509 (LH); RF510 (RH) NTE797 Series 3 – 5 Current inter-chamber door is counter balanced

51 NU-797 SHARPS PLUG RETROFIT & SHARPS UPGRADE

52 NU-430 SERIES 60^ NEW B2 FEATURES
Airflow Measurement Procedure Modified Down-flow Performed First Inflow taken with DIM and Supply Blower ON DC ECM Motor Permanent Pressure Plenum Exhaust monitored via Pressure Grid

53 NU-427 SERIES 60^ NEW B1 FEATURES
DC ECM Motor Permanent Pressure Plenum Exhaust monitored via Pressure grid

54 PRESSURE SWITCH RETROFIT VACS REPLACEMENT INSTALL.

55 TECHNICAL BULLETINS / RF KITS
PTB0170 TouchLink Software Loading Procedure STB0136 Verify B1/B2 Exhaust Probe Cal. (S 20 – 49) STB0185 NU-612/617 Preventive Maintenance STB0187 Convert NU-425 Series 20^ to DC ECM Motor STB0191 PR797 Isolator, Outer Door Hinge Bolt (PM) STB0192 TouchLink, Master Reset Procedure STB0197 GAF Control Board Usage/Calibration STB0201/202 GAF Module Software Update (RF541)

56 TECHNICAL BULLETINS / RF KITS
STB0204 DC ECM Speed Control Replacement (425 type) STB0208 TouchLink Software Version 60N.136N STB0211 TouchLink Software Version 61N.138N STB0214 Preventative Maintenance Check List STB0215 Pressure SW-VACS Replacement Installation STB Sharps Retrofit STB Caster Upgrade

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