Air Quality Engineering XJ-2 User manual

S U P P L Y I N G C L E A N A I R T O I N D U S T R Y
New!
New!New!
New! M O D E L X J - 2
Isolation Room Air Cleaner
Installation and Operation Manual
Affordable and portable, compact and quiet, the new XJ-2 assists you in complying
with the CDC guidelines for converting ordinary patient care rooms into negative-
pressure TB isolation rooms.
7140 Northland Drive North, Brooklyn Park, MN 55428-1520 USA
FAX: [phone] EMAIL: aq[email protected] WEB SITE: www.air-quality-eng.com
TOLL FREE: 1-800-328-0787
Air Quality Engineering Inc., has a policy of continuing product improvement and reserves the right to make changes
in design and specification without notice.

2
Before you get started please review the following:
Purchase Date: _____________________
Serial Number: _____________________
Motor Spec: ____________________
Type of filter and AQE P/N: _______________________________________________
Customer Technical Support:
To contact Air Quality Engineering use:
Mail: Air Quality Engineering
7140 Northland Drive N.
Brooklyn Park, MN 55428
USA
Phone: [phone]
763.531.9823
Fax: [phone]
e-mail: [email protected]
web: www.air-quality-eng.com
Copyright
Air Quality Engineering, Inc. copyrights this manual with all rights reserved. Under the copyright laws, this
manual may not be reproduced in any form, in whole or in part, without the prior written consent of Air
Quality Engineering, Inc.
2003
Disclaimer
All statements, technical information and recommendations in this manual or related documents are
believed reliable, but the accuracy and completeness thereof are not guaranteed or warranted, and they
are not intended to be, nor should they be understood to be representation or warranties concerning the
products described.
Specifications are subject to change without notice.

3
TABLE OF CONTENTS
PAGE
HOW AIRBORNE CONTAMINATION IS REMOVED 3
DIMENSIONS 4
SPECIFICATIONS 5
PLANNING THE INSTALLATION 6
ASSEMBLY 7
CHECKOUT AND OPERATION 8
MAINTENANCE 10
ELECTRICAL SCHEMATICS 11
PARTS IMAGES 12
PARTS LIST 13
TROUBLE SHOOTING 14
WARRANTY 15
HOW AIRBORNE CONTAMINATION IS REMOVED
Dirty air passes through the prefilter. The prefilter removes large particulate, such as lint. The primary
filter then captures the remaining smaller particulate. As the contaminant load on the filters increases, the
filters become more efficient in capturing the smaller particles. At the same time, however, the dirty filter
allows less particle collection and a decrease in the overall effectiveness of the air cleaner.

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DIMENSIONS
SPECIFICATIONS
- IMPORTANT -
THE SPECIFICATIONS GIVEN IN THIS PUBLICATION DO NOT INCLUDE NORMAL MANUFACTURING TOLERANCES.
THEREFORE, THIS UNIT MAY NOT MATCH THE LISTED SPECIFICATIONS EXACTLY. ALSO, THIS PRODUCT IS TESTED
AND CALIBRATED UNDER CLOSELY CONTROLLED CONDITIONS AND SOME MINOR DIFFERENCES IN PERFORMANCE
CAN BE EXPECTED IF THOSE CONDITIONS ARE CHANGED.
SPECIFICATIONS
Air Quality Engineering, Inc., has a policy of continuing product improvement and reserves the right to make changes in design and
specifications without notice.
Dimensions & Weight:
Air Flow Capability:
Pre-filter:
Microbial filter:
Filter Pressure Gauge:
Power Requirements:
Sound Levels:
Cabinet:
Base:
52” H x 26.5” W x 14” D x 140 lbs.
Adjustable from 115 CFM to 1000 CFM
80-85% ASHRAE efficient
HEPA (99.97% DOP efficient at 0.3 microns)
Mini-Helic
®
0” to 3” range
115Vac, 60 Hz, 4 Amps, 400 Watts
35 dBA @ 115 CFM and 66 dBA @ 775 CFM (tested 4’ from unit)
Heavy-gauge, welded steel cabinet with Ivory finish.
Standard base includes four swivel casters.

5
PLANNING THE INSTALLATION
- WARNING -
The XJ-2 ambient media air cleaner is not
explosion-proof. It must not be installed where
there is danger of vapor, gas or dust explosion.
INTRODUCTION
Clean air is the subject of numerous laws and
regulations. Typical requirements in the United
States are those put out by the Occupational
Safety and Health Administration (OSHA). Private
groups, such as the American Society of Heating,
Refrigeration and Air Conditioning Engineers
(ASHRAE), have also published numerous
recommendations.
The health care industry is regulated by the Center
for Disease Control (CDC). The CDC has many
regulations regarding air cleaning, some of which
are covered next.
Normally, clean air is defined in regulations and
recommendations as air having a limited amount
of contaminant, commonly expressed as parts per
million milligrams per cubic meter. Approved
counteractions are intended to lower or eliminate
the amount of contaminants in the air. One of the
more common methods of achieving this goal is
through the use of media air cleaners.
CDC Guidelines
The air change rate shall be not less than 12 ACH.
The purpose is to reduce the concentration of
contaminants in the air by removing contaminated
air and replacing it with contamination-free air.
The amount of contamination-free air is an air-
change rate expressed in ACH (air changes per
hour.)
Air shall generally flow from the supply to the
Health Care Worker to the patient (or other
infectious source) to the exhaust.
The objectives are to avoid short-circuiting of fresh
air from supply to exhaust, to avoid stagnation of
air and consequent build-up of contaminant
concentration, and to avoid the Health Care
Worker being positioned between the infectious
source and the exhaust.
Room pressurization shall be negative for
Infectious Isolation Rooms. Provision shall be
made for daily monitoring of the pressurization.
(Optional) An audible alarm to indicate loss of
room pressure control shall be provided.
Air Quality Engineering offers as an accessory the
Room Pressure Monitor.
Air flows from areas of higher pressure to areas of
lower pressure. Thus negative pressurization of
isolation rooms is desired so that air flows into the
room from adjacent rooms and not from the
potentially contaminated isolation room into
adjacent rooms.
CDC Guidelines specify negative, monitored
pressure, but do not specify well what the
pressure should be. A minimum of 0.25 Pa (0.001
IN WG) is stated as the requirement for control of
airflow direction. However such low pressures are
very difficult to monitor conveniently.
Exhaust air shall be recirculated or discharged via
HEPA filters. Or exhaust air shall be exhausted
directly to outside via negatively pressurized
ducting, away from air-intake vents, persons and
animals or recirculated or discharged via HEPA
filters.
Provision shall be made for monitoring (pressure
differential), testing (integrity) and safe change of
HEPA filters. Provision shall be made to
automatically or manually adjust airflow to
compensate for HEPA filter loading.
The purpose of HEPA filtration is to remove
contaminants from the air. HEPA filters remove at
least 99.97% of all particles greater than 0.3
microns in diameter. CDC Guidelines state that
Mycobacterium tuberculosis droplet nuclei
probably range from 1 micron to 5 microns in
diameter, therefore HEPA filters can be expected
to remove infectious droplet nuclei from
contaminated air.

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CDC Guidelines recommend that openings
including windows and electrical and plumbing
entries shall be sealed as much as possible.
Water supplied to isolation rooms shall be fitted
with back flow prevention.
ROOM PREPERATION:
There are many rules to follow for the installation
of the XJ-2 into a hospital setting. Information on
these rules can be found at www.cdc.gov, local
building regulations, hospital rules.
What needs to happen for the installation of the
XJ-2:
For the XJ-2: find a good location for the unit so air
circulates in the following fashion. From the air
cleaner to hospital personnel to infected patients
to the air cleaner. The XJ-2 operates off 115Vac
60 Hz.
ASSEMBLY
- CAUTION -
Do NOT connect the power source until after the
air cleaner is completely assembled.
If the air cleaner must be turned on for an
electrical check, be extremely careful in avoiding
electrical shock. Also, take care to avoid the air
cleaner’s moving parts.
WHEN ASSEMBLING THIS PRODUCT
Read these instructions carefully. Failure to follow
them could damage the product or cause a
hazardous condition.
Check the electrical ratings given on the air
cleaner schematic to the power source to insure
compatibility.
UNPACKING
The carton should be positioned on the floor with
the “up” arrows properly orientated. Remove all
shipping cardboard and banding. Be sure to
inspect the packaging material before discarding
it. After unpacking is complete, check out the
product operation as provided in these
instructions.
WIRING
The XJ-2 has no special wiring requirements. It
comes equipped with a 10-foot power cord and
plug. The power source must be compatible with
the voltage and frequency of the XJ-2. Route the
power cord so that it is out of the way of the
building’s occupants. Do not use an extension
cord.
CONNECTING DUCTING
Connect any applicable ductwork to the unit and
check and double check that there are no leaks
throughout the system.
CHECKOUT AND OPERATION
CHECKOUT
Before operating the XJ-2, check out the
installation using the following procedures:
1. Make sure the air cleaner is oriented for good
air circulation where it will not interfere with
personnel traffic. Make sure the unit will be
able to create an airflow as described by the
CDC guidelines.
2. Make sure the prefilter and the primary filter
are properly oriented and the airflow arrows
are pointing away from the blower.
3. Make sure quarter turn fasteners on filter
access cover are secure.
4. Make sure the minihelic®installed on unit is at
zero inches of water. If not, reference
calibration of the minihelic. The needle should
move when the unit is turned on.

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OPERATION
Turn on the air cleaner control switch. Make
sure the blower is providing a strong air
discharge.
2. The filter gauge should be level and should
read zero when the XJ-2 is turned off.
CALIBRATION OF THE MINIHELIC
Step 1
Remove the plastic cover by turning it counter-
clockwise. One may have to press on the cover
as one is turning it.
Step 2
With the supplied hex wrench, one can adjust the
needle by turning the hex screw at the bottom of
the gauge.
MAINTENANCE
- CAUTION -
Always disconnect the power to the XJ-2 before
working on or near the air cleaner.
Dirty air passes through the prefilter. The prefilter
removes large particulate. The primary filter then
captures the remaining particulate.
As the contaminant load on the filters increases,
the filters become more efficient in capturing the
smaller particles. At the same time, however, the
dirty filter allows less air to pass through resulting
in less particle collection and a decrease in the
overall effectiveness of the air cleaner.
The XJ-2 air cleaner is equipped with a pressure
gauge which indicates the restriction to airflow
caused by the filters loading with particulate.
When the air filter gauge reaches the red arrow or
a noticeable reduction in airflow occurs, it is time
to clean or replace the prefilter and possibly the
primary filter. The CDC guidelines specify that the
HEPA filter shall be replaced every six months.
NOTE: An increase of one inch on the gauge
would be approximately a 25% decrease in
airflow. If the reduction in airflow is not a
problem, the air cleaner can be operated
beyond this point. The red arrow can be
moved to the point at which the decrease in
airflow becomes a problem.
FILTER MAINTENANCE/REPLACEMENT
The CDC has set up guidelines for the proper
replacement of a filter exposed to harmful
contaminants. Follow those guidelines as you
replace the filters.
Step 1
Turn off the air cleaner. Open up the filter access
door and slide out the prefilter.
Step 2
Replace the prefilter and turn on the air cleaner.
The reading on the air filter gauge should be lower
than previous. If no performance improvement is
evident after cleaning or replacing the prefilter, the
primary filter will have to be replaced. In most
cases, the prefilter can be replaced several times
before the primary filter will need to be replaced.
Step 3
Release the tension screws holding in the HEPA
filter. The filter then can be removed by sliding it
out along the tracks. A new primary filter can be
replaced with the process reversed.
Dispose of the filter following local, state and
Federal regulations.

ELECTRICAL SCHEMATICS
Single Phase Schematic

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PARTS IMAGES
PARTS LIST
NO
.
DESCRIPTION
PART NO.
1 Speed controller 07129
2 MiniHelic
®
5” 10219
3 Impeller 07128
4 Prefilter 3m Filtrete 41144
5 HEPA Filter 41142
6 Wall mounting kit (not shown) 07130
7 Monitor Pressure Differential (not shown) 07132
8 Security Cover (not shown) 07131

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TROUBLE SHOOTING
WARNING!
The following instructions are intended for qualified service personnel only. Dangerous line
voltage circuits are exposed during this procedure. Disconnect the power before servicing the
unit.
Make sure to follow all CDC guidelines for cleaning the unit whenever you open any access
panel on the XJ-2
Check the Fan Motor and Power Source
If the fan does not run when the switch is on check the voltage supplied to the motor.
If the correct line voltage is not measured, check back through the wiring to the power source.
If the motor does not turn with the correct voltage applied, check to see that the shaft is free to turn.
Replace the motor, if necessary.
If the fan is noisy when the unit is in operation check the fan.
WARNING: Disconnect power before continuing! Manually turn the fan to make sure there is no
rubbing or grinding

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CERTIFICATE OF WARRANTY
THREE-YEAR LIMITED WARRANTY
Air Quality Engineering, Inc. (AQE), warrants to the original purchaser, subject to the conditions below, that if the
“Product” covered by this warranty should fail to perform by reason of improper workmanship or material, AQE will
during the period of three (3) years from the date of original purchase either (i) replace the product or (ii) provide all
necessary parts to repair the product without charge. The decision to replace the product or the necessary parts
shall rest solely with AQE. This three-year limited warranty does not apply to main filter elements. AQE will replace
without charge the main filter elements during the period of thirty (30) days from the date of original purchase if the
main filter elements fail to perform by reason of improper workmanship or material. This warranty is valid only under
the following conditions:
CONDITIONS
1. REGISTRATION: The purchaser’s completion and mailing of the Registration Card to Air Quality Engineering,
Inc., 7140 Northland Drive North, Minneapolis, Minnesota 55428-1520 within 30 days of original purchase.
2. AUTHORIZATION: The purchaser will contact AQE at [phone] for authorization, returned goods number
(RGA) and the shipping address. AQE will direct the purchaser to either return the necessary parts or the
product at AQE’s option.
3. PROPER DELIVERY: The shipping, freight prepaid or delivery of the parts or the product to AQE in either its
original carton or in a carton assuring similar protection of the product with the returned goods number (RGA)
clearly displayed on the outside of the carton.
4. UNAUTHORIZED REPAIR: A showing by the original purchaser that the product has not been altered, repaired
or serviced by anyone other than an authorized service technician using genuine AQE parts.
5. UNAUTHORIZED PARTS: A showing by the original purchaser that the product has had only genuine AQE
parts and filters used in its operation and maintenance.
6. SERIAL NUMBER INTACT: A showing by the original purchaser that the serial number has not been altered or
removed.
7. MISUSE: A showing by the original purchaser that the product has not been involved in an accident, freight
damaged, misused, abused or operated contrary to the instructions contained in the Owner’s Manual.
Air Quality Engineering, Inc.’s, sole responsibility shall be to repair or replace the product within the terms stated
above. AQE SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH
OF WARRANTY, EXPRESS OR IMPLIED, APPLICABLE TO THIS PRODUCT. Some states do not allow the
exclusion or limitation of consequential damages so this limitation may not apply to you.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, AND THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY EXCLUDED BEYOND
THE THREE-YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied
warranty lasts so the above limitation may not apply to you.
This warranty gives you specific legal rights and you may also have other rights that vary from state to state.
AIR QUALITY ENGINEERING, INC. TOLL FREE: 1-800-328-0787
7140 NORTHLAND DRIVE NORTH TELEPHONE: [phone]
MINNEAPOLIS, MINNESOTA 55428-1520 FAX: [phone]
MANUFACTURER & WORLDWIDE DISTRIBUTOR OF SMOKEMASTER® AIR CLEANING SYSTEMS
Printed in the USA