lev-co Multi-flex User manual

OWNER’S MANUAL
MODEL
MULTI
-
FLEX
•
INTRODUCTION
• SPECIFICATIONS
• UNPACKING
• INSTALLATION
• ELECTRICAL
• OPERATION
• MAINTENANCE
• TROUBLESHOOTING
• REPLACEMENT PARTS
• MOTOR TROUBLE GUIDE
***IMPORTANT***
THIS MANUAL CONTAINS PRECAUTIONARY STATEMENTS RELATING TO WORKER SAFETY. READ AND SAVE
THIS MANUAL COMPLETELY AND COMPLY AS DIRECTED. ALL THE POTENTIAL HAZARDS OF DUST AND MIST
CONTROL SYSTEMS AND EQUIPMENT ARE IMPOSSIBLE TO LIST; THEREFORE OBTAIN THE SERVICES OF A
PROFESSIONAL INSTALLER. A FIRE PROTECTION EXPERT SHOULD BE OBTAINED IN THE EVENT THE
PRODUCT IS INTENDED FOR USES WHICH PRESENT A POTENTIAL RISK OF FIRE OR FIRE PROPAGATION. REFER
TO APPROPRIATE AUTHORITIES AND DISCUSS YOUR INTENDED USE WITH A LEV-CO REPRESENT
ANT.
WORKERS HANDLING EQUIPMENT OR SYSTEMS SHOULD BE INSTRUCTED TO CONDUCT THEMSELVES IN
A
SAFE MANNER.
Page: 1/15 .

ALWAYS USE
L
E
V
-
CO REP
L
ACEM
E
NT
PAR
T
S AND FI
L
T
E
R
S TO MAINTAIN
WARRANTY.
TO ORD
E
R SPARE
P
ARTS:
CO
NTA
C
T U
S
:
1050 BROCK ROAD, Unit 22
24
Pickering, ON, CANADA L1W 3X4
Phon
e 905.831.7001 or 888.862.5356
Fax: [phone] or 866.840.9923
E
m
ail:
sales@lev
co
.
c
o
m
Website: http://www.lev
-
co.com
Page: 2/15 .

REA
D
INSTRUCTION
S
CAREFULL
Y
B
EFOR
E
ATTEMPTIN
G
T
O
I
N
STALL
OPERAT
E
O
R
SERVICE
YOUR MODEL MINI-VAC UNIT. RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE.
Page: 3/15 .

SAFETY RULES
Fol
l
o
w
al
l
electrica
l
an
d
safe
t
y
code
s
a
s
we
l
l
a
s
th
e
Nat
i
ona
l
Elec
t
ri
c
Cod
e
(
NEC)
,
Nat
i
ona
l
Fi
r
e
P
r
otect
i
on
Association (NFPA), and the Occupational Safety and Health Act (OSHA). All electrical connections and
wiring
should be performed by qualified personnel only.
National Fire Protection Association (NFPA) standards require specific duct design and dust collector configuratio
n
when collecting potentially reactive metal dusts, such as aluminum and magnesium, and other materials. NFPA als
o
covers other dusts such as grain, plastics, etc. A guideline for determining the precautions to be taken can be
found
thru NFPA. Consult current NFPA standards, available from NFPA, 1 Batterymarch Park, Quincy, MA, 02269, 1 800
344 3555, for applicable safeguards which may required for the Installation, Operation, and Service of this product.
Fire suppression equipment provided by others.
Additional references are the Uniform Building Code and Uniform Mechanical Code.
GENERA
L
OPERA
T
IONA
L
WARNING
1.
D
o
no
t
m
i
x
ma
t
erial
s
be
i
n
g
coll
e
ct
e
d
b
y
a
dus
t
collecto
r
unles
s
i
t
i
s
determine
d
tha
t
m
i
xin
g
o
f
material
s
does
no
t
caus
e
hazardou
s
con
d
ition
s
t
o
occu
r
o
r
crea
t
e
s
a
conditio
n
o
f
operatio
n
fo
r
w
h
ic
h
th
e
equipmen
t
wa
s
no
t
intended.
2.
Unde
r
n
o
condit
i
o
n
s
h
oul
d
bu
r
nin
g
c
i
garet
t
e
s
o
r
a
n
y
burn
i
n
g
objec
t
b
e
allow
e
d
in
t
o
th
e
hoo
d
o
r
du
c
tin
g
o
f
a
n
y
dus
t
c
ont
r
o
l
syst
e
m
.
3.
Wh
e
n
dus
t
collec
t
or
s
ar
e
use
d
t
o
c
o
l
l
ec
t
e
m
iss
i
on
s
f
r
o
m
stee
l
o
r
combin
e
d
m
eta
l
s
and
i
ng
,
t
h
e
dus
t
collec
t
or
sh
o
u
l
d
b
e
locate
d
a
n
a
d
e
qu
at
e
d
i
s
tanc
e
a
w
a
y
t
o
m
i
n
i
m
iz
e
t
h
e
chanc
e
o
f
ignitio
n
o
f
duc
t
s
y
ste
m
resi
du
e
f
ro
m
ho
t
m
etal
chips and sparks. Should further protection from fire be required, adequate duct systems from capture hoods and
dust
collector should be provided so that a fire protection specialist can install extinguishing equipment. You may also wa
nt
to contact your insurance underwriter.
4.
Al
ways disconnect unit from
power
s
ource before inspecting or servicing.
LEV
-
CO
S
ETS THE
S
T
ANDARD
The
Lev
co
MULTI
FLEX
collects
dust,
wel
d
ing
s
m
oke,
m
ist
and
other
at
m
ospheric pollutants in industrial
plants, shops, schools and factories. The MULTI FLEX is available in multiple configurations each specific for the
type of pollutant requiring capture. The general theory of operation ( for the standard configuration unit ) is that air
bearing pollutants passes through the inlet section into the dust pan located in the plenum section where large
particles and sparks fall out of the air stream. The particulate laden air then makes a 180
o
turn to pass through the 2"
30% aluminum mesh pre filter. A second dust tray is located in this section as well. Once passing through the
aluminum pre filter, the air is drawn through the main 95% bag filter where the +1 and sub micron particles are
captured. This main filter has 88 ft2 collection area for maximum intervals between service. An optional shaker
handle is available for dry dust applications.
Optional filter arrangements for special conditions are as follows:
1.
2.
Mist/vapor control package which consists of a 2” i
m
ping
e
ment pre
filter or a 4" Chevro
n

pre
filter.
Odor control package which uses a 12" deep 95% bag (36 ft
2
) followed by two refillable Adsorption
charcoal
m
o
dules (total of 50# charcoal
n
o
t included) and a 1" poly after
filter.
3.
High
e
ff
iciency
colle
c
tion
package
consisting
of
a
2"
alu
m
inum
pre
f
ilter,
a
12"
95%
bag
f
ilter
and
a
99%
DOP or 99.
97% HEPA f
i
lter.
The particulate laden air is drawn through the filter section. The high static pressure blower and m
otor
discharges the clean air into a built in silencer for maximum noise reduction.
Page: 4/15 .

The
MULTI
FLEX
is
a
co
m
p
lete
portable
or
stationary
collector.
The
unit
co
m
es
equipped
with
four
5"
industrial duty casters (2 swivel, 2 fixed). It comes standard with a single 8" diameter, 10' long (or optional dual 8"
diameter 10' long) Internally supported arms for at the source capture of pollutants. Optional 7’ and 13’ long
arms are available.
Figure 1.
SPECIFICATIONS(*):
MULTI
-
FLEX
STD DIM:
WEIGHT:
CONSTRUCTION:
27
" W
x 76" H x 50.5
" D [1.02m W x 1.67m H x 0.66m
D]
197 lb. (STD)
16 gauge welded zinc coated steel cabinet, finished with a two part chemical and oil resistant
paint.
Includes
side
access
doors,
dust
pan
door,
5"
casters,
self
supporting
6.75"
d
i
a
by
10'
long
extractor
arm,
and
ULTRA SEAL

filter sealing system to prevent by pass.
NOISE LEVEL:
ELECTRICAL:
Standard Motor:
STD
78 dBA @ 5
'
, 68 dBA @ 5'
with optional silencer
1.5 HP, 115/208
230/1/60 @ 17.0/8.5 A
Opt: 1.5 HP, 208 230/460/3/60 @ 4.9 4.6/2.3 A
Opt: 3 HP, HP 208 230/460/575/3/60 @ 8.0/4.0 A
STD 2 HP 208 230/460/575/3/60 @ 5.7 5.4/2.7 A * 1.5 HP 115V AC wired with cord and
Dual
Arm Option:
switch; others ter
m
inated
at J
box on unit exterior
BLOWER: Direct drive radial blower
FILTRATION:
STANDA
R
D
12” 95% main filter
12" 99% main filter
OPTIONAL (vario
u
s a
v
aila
b
le)
1st Stage:
2nd Stage:
12” 95% Main filter
2 – 12” AD/Carbon filter modules
Page: 5/15 .
1 st arm
STANDARD
2 nd arm
OPTIONAL

3rd Stag
e
:
Optional 12”
HEPA filer
Optional 12” Hepa Filter
Figure 2.
(*) Lev co has a policy of continuous research and improvement, and reserves the right to change design and specifications without notice.
INSPECT
I
ON AND UNPACKING
Inspec
t
you
r
LEV
C
O
uni
t
fo
r
sh
i
p
p
i
n
g
d
a
m
a
g
e
i
mm
e
dia
t
el
y
upo
n
r
e
ceipt
,
s
a
v
e
al
l
p
a
ck
a
g
in
g
ma
t
erial
s
until
unit has been received, inspected and accepted.. Damaged carton(s), broken crate(s), etc. are indications that the uni
t
may have been damaged in shipment. It is also possible shipping damage may be concealed and not noticed until
the
unit is installed and in operation. If any damage is found, notify your delivery carrier at once and enter a claim. Clai
ms
must be filed within 24 hrs of receipt of shipment. FREIGHT DAMAGE CLAIMS ARE THE RESPONSIBILIT
Y
OF THE PURCHASER NOT LEV-CO. After initial inspection for shipping damage, check the cabinet f
ilter and
motor/blower compartments for any packing materials and remove.
PRE
P
ARATION AND INSTAL
L
A
TION
A
f
ter
initial
inspe
c
tion
f
or
shipping
da
m
age,
open
the
cabinet
and
m
ot
o
r
access
door.
Re
m
ove
a
ll
packing
materials and filters to avoid damage and to facilitate the installation. The installation should conform to all loca
l
ordinances associated with building a
nd electrical codes required for the unit. Authorities having jurisdiction should
be consulted before installation is made. If there are no local codes, the installation should conform to the
National
Electrical Code. The MULTI FLEX can be used as either a roll around portable unit, wall mounted or suspended.
If
using an extension cord with the portable unit refer to the Appendix Motor Troubleshooting Guide
Table
A for the correct wire gauge. The following section discusses both physical installation and electrical tie in. Fi
re
suppression equipment provided by others. If an optional light kit was ordered, this manual will be accom
panied
by a Light Kit Manual with an instruction sheet for light kit service and operation.
Page: 6/15 .

CAUTION
EL
E
CTR
I
CAL
CAUTION
The
MULTI
FLEX
is
equipped
with
a
side
mounted
junction
box.
All
115V
AC
units
have
an
ON/OFF
switch and
cord with plug. Three phase units have wiring terminated inside junction box; motor star
ters and disconnects are not
supplied with the unit (unless purchased as an option), and must meet local and National Electrical Code.
Motors
are typically multiple voltage type (e.g. 115/230 or 208/230/480). Make sure connections in motor junction
box
correspond to the line voltage you plan to use. Three phase motor starters (manual or magnetic type) must
have
properly sized thermal overloads for the voltage and current required at the motors.
Motor checkout should be performed with the unit running, all filters in place and cabinet doors closed
.
Measured motor current readings should be equal to or below motor na
meplate rating. These specifications can be
found on the motor name plate or in the specifications section of this manual.
The single phase 115V AC motors supplied in the MULTI FLEX have thermal overload protection.
Motor rotation may be changed, if required, by reversing two internal motor leads located under the
wiring
cover. The motor cover plate shows an internal schematic of the motor and should be consulted for this operation.
Figure 3.
Page: 7/15 .
CABINET DOORS MUST BE CLOSED WHEN RUNNING BLOWER. MOTOR WILL BE
OVERLOADED IF RUNNING WITH DOORS OPEN.
WHEN USING THE MULTI-FLEX IN THE PORTABLE CONFIGURATION DO NOT OVER EXTEND
THE POWER CORD REACH. DISCONNECTING THE POWER SOURCE WHILE UNIT IS IN
OPERATION CAN CAUSE SPARKING.

THREE
PHASE
MOTORS
Three
pha
se
m
otors
do
not
have
overload
protection
i
n
cluded
in
the
standard
con
f
iguration
and
m
ust
be
supplied by the end user. They are also available from the factory as a pre installed option. If these
protective
circuits are not ordered from the factory, use equipment as specified by the National Electric Code or
other
applicable authority.
On
the
three
phase
m
o
dels,
the
motor
can
o
p
erate
in
eit
h
er
direction.
However,
airflow, the blower motor should be turning in a Centrifugal direction when viewed
from the top of the unit. To verify the correct rotation, open the blower access
panel and bump start motor (turn on briefly then turn off). Look at the top of motor,
using an inspection mirror if necessary, and make sure the motor is turning
clockwise as illustrated in Figure 4, or corresponds to the arrow on the blower
housing.
If the direction of rotation is not as specified, reverse any two wires of the
incoming power and motor will reverse direction (3 PHASE ONLY). Figure 5
for
proper
suction
and
Figure 4.
s
hows
details
on
changing
the
wiring
configurations.
The
m
ain
power
leads, L1, L2, and L3 are not differentiated by color. If mo
tor rotation
must be changed, then reversing any two of the leads will produce thi
s
result (e.g. reverse L1 and L2 or L2 and L3). Figure 5 shows
the
electrical hook ups on the three phase motor.
Figure 5.
CAUTION
OTH
E
R O
P
TIONS
E
L
ECTRI
C
AL
The
standard
Light
Kit
will
require
an
additional
4.0
A
at
1
15V
AC
m
i
ni
m
u
m,
be
sure
to
add
this
i
n
to
the
power requirements when allocating circuits for the MULTI FLEX unit. The standard light will come on
only
when the unit is operating as the unit ON/OFF switch also controls the light circuit. Optional remote
switching
of motor and light is available.
MAINTENANCE
1. Wash or change the main & Final filters when the suction drops below an acceptable level.
2. Replace HEPA filters when Pressure drop exceeds 4” of SP
3. Change the carbon when lab testing indicates or when Off Gasing commences (strong smell even when the unit
is off)… We recommend keep spare carbon in stock! And change the carbon in a VERY well ventilated area…
Carbon is dusty and spent carbon can release high levels of adsorbed contaminants.
Page: 8/15 .
ALWAYS DISCONNECT THE UNIT FROM THE POWER SOURCE BEFORE WORKING ON
OR
NEAR THE MOTOR OR WIRING ASSEMBLIES. LOCK OUT DISCONNECTS TO PREVEN
T
UNEXPECTED APPLICATION OF POWER.
IN LARGE PLANTS WHEN ROLLING UNIT FROM ONE BUILDING
TO ANOTHER YOU MAY BE
ON A DIFFERENT SUBSTATION TRANSFORMER. THE BLOWER MOTOR MAY
RUN
BACKWARDS. CHECK ROTATION IN EACH LOCATION WHERE THE UNIT WILL BE US
ED TO
ENSURE THAT BLOWER MOTOR ROTATES IN PROPER DIRECTION.

The
95% and 99% filters
s
e
l
f
clea
n
s by
gravity
d
rai
n
ing
to the sump pan. It will be necessary to occasionally
clean the filters if both grit and a mist are being collected.
Dry particulate can be removed from any of the pre filter
assemblies by shaking or vacuum.
Tacky or embedded matter should be washed off in the
appropriate solvent.
Figure 6.
The
Adsorption
Module
(AD)
option
is
co
m
prised
of
(2)
refillable,
finely
perforated
containers
to
hold
the
adsorption material in the air stream. As with the HEPA, it is located above the 95% filter.
The final filter configuration option available is the External Module. This external module can house either
a HEPA filter or an adsorption bank or a “DOUBLE BY PASS” carbon fitler module. Filter access is from the top
cover of the module. The HEPA is secured with a clamping system
F
IL
T
ER SERVICE
Filt
e
r
ser
v
i
c
e
is
required
when
a
reduction
of
ai
rf
low
(sucti
o
n)
is
notice
d
,
or
on
m
odels
so
equi
p
ped,
when
the optional pressure gauge indicates a restriction.
The optional pressure gauge is calibrated as follows:
With clean filters, turn unit on and mark the pressure
reading on the gauge, (see diagram included with gauge for
hook up). Make a second mark at 2.0" higher than initial reading (i.e. if initial readi
ng is 1.0" the second mark
should be at .0").
Whether using a gauge or when airflow reduction is noticed, the following procedure should be followed.
1. Clean/replace pre filter, turn unit back on, check performance. Normally, performance retu
rns at or close to
original setting for the first several cleanings of the pre filter.
2. If no performance improvement is evident after cleaning the pre filter, replace or clean main filter.
3. If no perfor
m
ance
i
m
prove
m
ent is evide
n
t after step 1
& 2, clean
o
r replace after filt
e
r (on
m
o
dels so eq
ui
pped.)
Page: 9/15 .
Be sure when installing filters to observe the airflow direction as noted by an arrow on the side of the filter.
The unit will not be damaged if incorrectly installed however performance will be degraded.

NOTE
FILTER
CLEAN
I
NG
1. Turn unit off and let
motor/blower co
m
e to a co
m
plete stop.
2. Remove filter access panel.
3. Remove pre filter.
4. Un clip main filter in place
5. Slide out main filter.
6. Empty inlet and main dust trays to prevent dust from recollecting on filter.
7. To re install, reverse the above steps.
8. Turn unit on and check suction and/or pressure gauge. If suction/pressure is still inadequate, replacem
ent of the
main filter is required. If an optional third stage filter is used, ( i.e. HEPA or AD) and the above steps do not
return
the unit to specified performance, then replacement of the third stage filter will be necessary.
9. Oil smoke or vapor may cause decreased filter life.
FILTER
REPLACEMENT
1. Turn unit off and unp
l
ug from
electrical circuit.
2. Remove filter access panel.
3. Clean or replace pre filter per above instructions.
4. Release filter retaining clamps located on filter holding frame (see Figure 6).
5. Slide filters out of the holding frame.
6. To replace, reverse the procedure above.
HEPA
FILTER
:
(on
m
odels
so
equipped)
cannot
be
cleaned.
S
ee
your
distributor
for
replace
m
ent.
OTHER S
E
RVICE
Most other co
m
ponents of your MULTI
FLEX air cleaner requi
re little or no
routine servicing. Ite
m
s
such as motors, blower wheels, friction joints of arms, pickup hose and gaskets should be checked twice a year
under normal usage; more frequently under severe 24 hour per day usage. Clean, repair or replace parts as
necessary.
Page: 10/15 .
Unit can continue to run safely beyond the 2.0" pressure differential recommended however
performance
will be reduced. Do not exceed 6.0" pressure differential across the filters.