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
NUAIRE WEBSITE
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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 800-328-3352
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
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
CELLGARD™ HD NU-481 ES
AIR FLOW
Clean Oval Canister HEPA Filtered Air
Clean HEPA Filtered Air
Room Air
Contaminated Work Surface Air
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
CELLGARD™ HD NU-481 ES
PRIMARY HEPA FILTER
INTEGRITY TESTING
PAO Wand
Filter Gard
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
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)
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-481-8691) Fiberglass rods can
be re-used
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
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)
DC ECM CONTROL SYSTEM A2
 NU-425 – ES (Energy Saver) - Optional & Field Upgradeable
 NU-475, NU-629 – ES (Energy Saver) – Standard
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
425 TYPE DC MOTOR
SPEED CONTROLLER SYSTEM
425 TYPE DC MOTOR
SPEED CONTROLLER SYSTEM
SPEED CONTROLLER JUMPERS
0 = Not Jumped
1 = Jumped
J2
J3
3’
0
0
4’
1
0
5’
0
1
6’
1
1
GENERAL AIRFLOW BOARD (GAF)
 NU-437, NU-477 (A2) – ES (Energy) -Saver Standard
 GAF Also used in NU-813 , NU-126 , NU-619 - Change
Station & All Isolators models
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 1.5.0001), 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
GAF MAIN CONTOR BOARD LAYOUT
AC Blower POT.
AC Blower Output
Board AC
Input
Connection
EC #2
VDC T.P.’s
EC #1
VDC T.P.’s
EC Connector &
POT #1
EC Connector and
DC ECM Blower 4 Pin
POT #2
Motor Control
Connector
AC T.P.’s
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^)
GAF Control board EC Impeller Connections
NU-437 (SERIES 60^) / 477 (A2)
AIRFLOW CALIBRATION
The DC-ECM System works like this:
1. AC voltage is applied directly to the DC motor’s control module
2. The motor control module (Microprocessor) converts the AC to DC
for Internal electronics and to power the motor
3. 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.
GAF CONTROL BOARD JUMPERS
DC ECM CONTROL SIGNALS
Nite
Care Setback
GAF BOARD AC OR DC
JUMPER WIRE
Cut Jumper Wire
for AC Motor
NU-437 / 477 (A2)
CALIBRATION AIRFLOW
Once the airflow calibration is complete – calibrate the FlowGard
Airflow Monitor
1. Press and hold ( ) and ( ) arrow keys simultaneously for 3 seconds
until the center green LED blinks.
2. Allow the Unit to run for a minimum of 2 minutes.
3. 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.
BSCC TOUCHLINK AIRFLOW
CONTROL SYSTEM
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
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
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
- Press MENU from the main display
- 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.
- Power down cabinet
- Reconnect 4 pin exhaust probe connector back on main control board
CLASS II TYPE A2
CANOPY EXHAUST TRANSITIONS
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)
VARIABLE FLOW CANOPY (VFC)
 Low profile (5” housing, 8½” overall)
 Built-in low airflow alarm
 Variable air gap range (25 to 250cfm)
VFC FUNCTION / OPTIONS
VFC SETUP INSTRUCTIONS
Note: VFC Setup adjustment should be made with cabinet set at
nominal airflows
1. 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)
2. Verify containment with the capture of smoke
3. Verify low exhaust alarm with loss of smoke capture with in
15 seconds
VFC INTERFACE / SERVICE
 Alarm contacts
 Audible alarm silence contacts
 Front panel access for filter testing
 Decon options
NU-911/921 VFC TRANSITIONS
NU-602
NU-602 NEW LIFT SYSTEM
NU-602 NEW LIFT SYSTEM
NU-602
 RF Kit to convert older
series actuators
 Re-Zeros every time unit is
fully retracted
NU-612 / 617 / 619
SMALL ANIMAL
CAGE CHANGING STATIONS
NU-612 / 617 / 619 Preventative
Maintenance Check List
NU-612 / 617 / 619
PREVENTATIVE MAINTENANCE
CASTER INSPECTION
REF. STB0185 / STB0214
NU-612/617
CASTER FAILURES
REF. STB0185
NU-612 / 617 / 619
P.M.C.I.
REF. STB0185 / STB0214
PHARMAGARD
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
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
RF509 (LH); RF510 (RH)
 Current inter-chamber door
is counter balanced
NU-797 SHARPS PLUG RETROFIT
& SHARPS UPGRADE
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
NU-427 SERIES 60^
NEW B1 FEATURES
 DC ECM Motor
 Permanent Pressure Plenum
 Exhaust monitored via Pressure grid
PRESSURE SWITCH RETROFIT
VACS REPLACEMENT INSTALL.
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)
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
 STB0216
797 Sharps Retrofit
 STB0219
619 Caster Upgrade