Lincoln Electric PRISM DOWN DRAFT User manual

Operator’s Manual
PRISM
®
DOWN DRAFT
Register your machine:
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Authorized Service and Distributor Locator:
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IM10596 | Issue Date Apr-22
© Lincoln Global, Inc. All Rights Reserved.
For use with machines having Code Numbers:
13123, 13124, 13125,
13126, 13127, 13128
Save for future reference
Date Purchased
Code: (ex: 10859)
Serial: (ex: U1060512345)

THANK YOU FOR SELECTING
A QUALITY PRODUCT BY
LINCOLN ELECTRIC.
PLEASE EXAMINE CARTON AND EQUIPMENT FOR
DAMAGE IMMEDIATELY
When this equipment is shipped, title passes to the purchaser
upon receipt by the carrier. Consequently, claims for material
damaged in shipment must be made by the purchaser against the
transportation company at the time the shipment is received.
SAFETY DEPENDS ON YOU
Lincoln arc welding and cutting equipment is designed and built
with safety in mind. However, your overall safety can be increased
by proper installation ... and thoughtful operation on your part.
DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT
WITHOUT READING THIS MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED THROUGHOUT. And, most importantly,
think before you act and be careful.
This statement appears where the information must be followed
exactly to avoid serious personal injury or loss of life.
This statement appears where the information must be followed
to avoid minor personal injury or damage to this equipment.
KEEP YOUR HEAD OUT OF THE FUMES.
DON’T get too close to the arc.
Use corrective lenses if necessary
to stay a reasonable distance
away from the arc.
READ and obey the Safety Data
Sheet (SDS) and the warning label
that appears on all containers of
welding materials.
USE ENOUGH VENTILATION or
exhaust at the arc, or both, to
keep the fumes and gases from
your breathing zone and the general area.
IN A LARGE ROOM OR OUTDOORS, natural ventilation may be
adequate if you keep your head out of the fumes (See below).
USE NATURAL DRAFTS or fans to keep the fumes away
from your face.
If you develop unusual symptoms, see your supervisor.
Perhaps the welding atmosphere and ventilation system
should be checked.
WEAR CORRECT EYE, EAR &
BODY PROTECTION
PROTECT your eyes and face with welding helmet
properly fitted and with proper grade of filter plate
(See ANSI Z49.1).
PROTECT your body from welding spatter and arc
flash with protective clothing including woolen
clothing, flame-proof apron and gloves, leather
leggings, and high boots.
PROTECT others from splatter, flash, and glare
with protective screens or barriers.
IN SOME AREAS, protection from noise may be appropriate.
BE SURE protective equipment is in good condition.
Also, wear safety glasses in work area
AT ALL TIMES.
SPECIAL SITUATIONS
DO NOT WELD OR CUT containers or materials which previously
had been in contact with hazardous substances unless they are
properly cleaned. This is extremely dangerous.
DO NOT WELD OR CUT painted or plated parts unless special
precautions with ventilation have been taken. They can release
highly toxic fumes or gases.
Additional precautionary measures
PROTECT compressed gas cylinders from excessive heat,
mechanical shocks, and arcs; fasten cylinders so they cannot fall.
BE SURE cylinders are never grounded or part of an
electrical circuit.
REMOVE all potential fire hazards from welding area.
ALWAYS HAVE FIRE FIGHTING EQUIPMENT READY FOR
IMMEDIATE USE AND KNOW HOW TO USE IT.
WARNING
CAUTION
Safety 01 of 04 - 10/08/2021

SECTION A:
WARNINGS
CALIFORNIA PROPOSITION 65 WARNINGS
WARNING: Breathing diesel engine exhaust
exposes you to chemicals known to the State
of California to cause cancer and birth defects,
or other reproductive harm.
• Always start and operate the engine in a
well-ventilated area.
• If in an exposed area, vent the exhaust to the outside.
• Do not modify or tamper with the exhaust system.
• Do not idle the engine except as necessary.
For more information go to
www.P65 warnings.ca.gov/diesel
WARNING: This product, when usedfor welding or
cutting, produces fumes or gases which contain
chemicals known to the State ofCalifornia to cause
birth defects and, in some cases, cancer.(California
Health & Safety Code § 25249.5 et seq.)
WARNING: Cancer and Reproductive Harm
www.P65warnings.ca.gov
ARC WELDING CAN BE HAZARDOUS. PROTECT
YOURSELF AND OTHERS FROM POSSIBLE SERIOUS
INJURY OR DEATH. KEEP CHILDREN AWAY.
PACEMAKER WEARERS SHOULD CONSULT WITH
THEIR DOCTOR BEFORE OPERATING.
Read and understand the following safety highlights. For
additional safety information, it is strongly recommended
that you purchase a copy of “Safety in Welding & Cutting -
ANSI Standard Z49.1” from the American Welding Society,
P.O. Box 351040, Miami, Florida 33135 or CSA Standard
W117.2. A Free copy of “Arc Welding Safety” booklet E205
is available from the Lincoln Electric Company, 22801
St. Clair Avenue, Cleveland, Ohio 44117-1199.
BE SURE THAT ALL INSTALLATION, OPERATION,
MAINTENANCE AND REPAIR PROCEDURES ARE
PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
FOR ENGINE POWERED
EQUIPMENT.
1.a. Turn the engine off before troubleshooting
and maintenance work unless the
maintenance work requires it to be running.
1.b. Operate engines in open, well-ventilated areas or vent the engine
exhaust fumes outdoors.
arc or when the engine is running. Stop the
engine and allow it to cool before refueling to
prevent spilled fuel from vaporizing on contact
tank. If fuel is spilled, wipe it up and do not start engine until
fumes have been eliminated.
1.d. Keep all equipment safety guards, covers
and devices in position and in good repair.
Keep hands, hair, clothing and tools away
from V-belts, gears, fans and all other
moving parts when starting, operating or
repairing equipment.
1.e. In some cases it may be necessary to remove safety guards to
perform required maintenance. Remove guards only when
necessary and replace them when the maintenance requiring
their removal is complete. Always use the greatest care when
working near moving parts.
1.f. Do not put your hands near the engine fan. Do not attempt to
override the governor or idler by pushing on the throttle control
rods while the engine is running.
1.g. To prevent accidentally starting gasoline engines while turning
the engine or welding generator during maintenance work,
disconnect the spark plug wires, distributor cap or magneto wire
as appropriate.
1.h. To avoid scalding, do not remove the radiator
pressure cap when the engine is hot.
ELECTRIC AND
MAGNETIC FIELDS MAY
BE DANGEROUS
causes localized Electric and Magnetic Fields (EMF).
and welding machines
welders having a pacemaker should consult their physician
before welding.
which are now not known.
2.d. All welders should use the following procedures in order to
2.d.1. Route the electrode and work cables together - Secure
them with tape when possible.
2.d.2. Never coil the electrode lead around your body.
2.d.3. Do not place your body between the electrode and work
cables. If the electrode cable is on your right side, the
work cable should also be on your right side.
2.d.4. Connect the work cable to the workpiece as close as pos-
sible to the area being welded.
2.d.5. Do not work next to welding power source.
SAFETY
Safety 02 of 04 - 10/08/2021
1.c. Do not add the fuel near an open ame welding
with hot engine parts and igniting. Do not spill fuel when lling
2.a. Electric current owing through any conductor
Welding current creates EMF elds around welding cables
2.b. EMF elds may interfere with some pacemakers, and
2.c. Exposure to EMF elds in welding may have other health effects
minimize exposure to EMF elds from the welding circuit:
1.i. Using a generator indoors CAN KILL YOU IN
MINUTES.
1.j. Generator exhaust contains carbon monoxide. This is a poison
you cannot see or smell.
1.k. NEVER use inside a home or garage,
EVEN IF doors and windows are open.
1.l. Only use OUTSIDE and far away from
windows, doors and vents.
1.m. Avoid other generator hazards. READ
MANUAL BEFORE USE.

ELECTRIC SHOCK
CAN KILL.
3.a. The electrode and work (or ground) circuits are
electrically “hot” when the welder is on. Do
not touch these “hot” parts with your bare skin or wet clothing.
Wear dry, hole-free gloves to insulate hands.
3.b. Insulate yourself from work and ground using dry insulation.
Make certain the insulation is large enough to cover your full area
of physical contact with work and ground.
In addition to the normal safety precautions, if
welding must be performed under electrically
hazardous conditions (in damp locations or while
wearing wet clothing; on metal structures such as
floors, gratings or scaffolds; when in cramped
positions such as sitting, kneeling or lying, if there
is a high risk of unavoidable or accidental contact
with the workpiece or ground) use the following
equipment:
• Semiautomatic DC Constant Voltage (Wire) Welder.
• DC Manual (Stick) Welder.
• AC Welder with Reduced Voltage Control.
3.c. In semiautomatic or automatic wire welding, the electrode,
electrode reel, welding head, nozzle or semiautomatic welding
gun are also electrically “hot”.
3.d. Always be sure the work cable makes a good electrical
connection with the metal being welded. The connection should
be as close as possible to the area being welded.
3.e. Ground the work or metal to be welded to a good electrical (earth)
ground.
3.f. Maintain the electrode holder, work clamp, welding cable and
welding machine in good, safe operating condition. Replace
damaged insulation.
3.g. Never dip the electrode in water for cooling.
3.h. Never simultaneously touch electrically “hot” parts of electrode
holders connected to two welders because voltage
between the
two can be the total of the open circuit voltage of both
welders.
3.i. When working above floor level, use a safety belt to protect
yourself from a fall should you get a shock.
3.j. Also see Items 6.c. and 8.
ARC RAYS CAN BURN.
4.a. Use a shield with the proper filter and cover plates to protect your
eyes from sparks and the rays of the arc when welding or
observing open arc welding. Headshield and filter lens should
conform to ANSI Z87. I standards.
4.b. Use suitable clothing made from durable flame-resistant material
to protect your skin and that of your helpers from the arc rays.
4.c. Protect other nearby personnel with suitable, non-flammable
screening and/or warn them not to watch the arc nor expose
themselves to the arc rays or to hot spatter or metal.
FUMES AND GASES
CAN BE DANGEROUS.
5.a. Welding may produce fumes and gases
hazardous to health. Avoid breathing these
fumes and gases. When welding, keep your head out of the fume.
Use enough ventilation and/or exhaust at the arc to keep fumes
and gases away from the breathing zone. When welding
hardfacing (see instructions on container or SDS)
or on lead or cadmium plated steel and other
metals or coatings which produce highly toxic
fumes, keep exposure as low as possible and
within applicable OSHA PEL and ACGIH TLV limits
using local exhaust or mechanical ventilation
unless exposure assessments indicate otherwise.
In confined spaces or in some circumstances,
outdoors, a respirator may also be required.
Additional precautions are also required when
welding
on galvanized steel.
5. b. The operation of welding fume control equipment is affected by
various factors including proper use and positioning of the
equipment, maintenance of the equipment and the specific
welding procedure and application involved. Worker exposure
level should be checked upon installation and periodically
thereafter to be certain it is within applicable OSHA PEL and
ACGIH TLV limits.
5.c. Do not weld in locations near chlorinated hydrocarbon vapors
coming from degreasing, cleaning or spraying operations. The
heat and rays of the arc can react with solvent vapors to form
phosgene, a highly toxic gas, and other irritating products.
5.d. Shielding gases used for arc welding can displace air and
cause
injury or death. Always use enough ventilation, especially in
confined areas, to insure breathing air is safe.
5.e. Read and understand the manufacturer’s instructions for this
equipment and the consumables to be used, including the
Safety Data Sheet (SDS) and follow your employer’s safety
practices. SDS forms are available from your welding
distributor or from the manufacturer.
5.f. Also see item 1.b.
SAFETY
Safety 03 of 04 - 10/08/2021

WELDING AND CUTTING
SPARKS CAN CAUSE
FIRE OR EXPLOSION.
6.a. Remove fire hazards from the welding area. If
this is not possible, cover them to prevent the welding sparks
from starting a fire. Remember that welding sparks and hot
materials from welding can easily go through small cracks and
openings to adjacent areas. Avoid welding near hydraulic lines.
Have a fire extinguisher readily available.
6.b. Where compressed gases are to be used at the job site, special
precautions should be used to prevent hazardous situations.
Refer to “Safety in Welding and Cutting” (ANSI Standard Z49.1)
and the operating information for the equipment being used.
6.c. When not welding, make certain no part of the electrode circuit is
touching the work or ground. Accidental contact can cause
overheating and create a fire hazard.
6.d. Do not heat, cut or weld tanks, drums or containers until the
proper steps have been taken to insure that such procedures
will not cause flammable or toxic vapors from substances inside.
They can cause an explosion even though they have been
“cleaned”. For information, purchase “Recommended Safe
Practices for the Preparation for Welding and Cutting of
Containers and Piping That Have Held Hazardous Substances”,
AWS F4.1 from the American Welding Society
(see address above).
6.e. Vent hollow castings or containers before heating, cutting or
welding. They may explode.
6.f. Sparks and spatter are thrown from the welding arc. Wear oil free
protective garments such as leather gloves, heavy shirt, cuffless
trousers, high shoes and a cap over your hair. Wear ear plugs
when welding out of position or in confined places. Always wear
safety glasses with side shields when in a welding area.
6.g. Connect the work cable to the work as close to the welding area
as practical. Work cables connected to the building framework or
other locations away from the welding area increase the
possibility of the welding current passing through lifting chains,
crane cables or other alternate circuits. This can create fire
hazards or overheat lifting chains or cables until they fail.
6.h. Also see item 1.c.
6.I. Read and follow NFPA 51B “Standard for Fire Prevention During
Welding, Cutting and Other Hot Work”, available from NFPA, 1
Batterymarch Park, PO box 9101, Quincy, MA 022690-9101.
6.j. Do not use a welding power source for pipe thawing.
CYLINDER MAY EXPLODE IF
DAMAGED.
7.a. Use only compressed gas cylinders containing
the correct shielding gas for the process used
and properly operating regulators designed for
the gas and pressure used. All hoses, fittings,
etc. should be suitable for the application and
maintained in good condition.
7.b. Always keep cylinders in an upright position securely chained to
an undercarriage or fixed support.
7.c. Cylinders should be located:
• Away from areas where they may be struck or subjected
to physical damage.
• A safe distance from arc welding or cutting operations
and any other source of heat, sparks, or flame.
7.d. Never allow the electrode, electrode holder or any other
electrically “hot” parts to touch a cylinder.
7.e. Keep your head and face away from the cylinder valve outlet
when opening the cylinder valve.
7.f. Valve protection caps should always be in place and hand tight
except when the cylinder is in use or connected for use.
7.g. Read and follow the instructions on compressed gas cylinders,
associated equipment, and CGA publication P-l, “Precautions for
Safe Handling of Compressed Gases in Cylinders,” available from
the Compressed Gas Association, 14501 George Carter Way
Chantilly, VA 20151.
FOR ELECTRICALLY
POWERED EQUIPMENT.
8.a. Turn off input power using the disconnect
switch at the fuse box before working on
the equipment.
8.b. Install equipment in accordance with the U.S. National Electrical
Code, all local codes and the manufacturer’s recommendations.
8.c. Ground the equipment in accordance with the U.S. National
Electrical Code and the manufacturer’s recommendations.
Refer to
http://www.lincolnelectric.com/safety
for additional safety information.
SAFETY
Safety 04 of 04 - 10/08/2021

WARNINGS
READ AND SAVE THESE INSTRUCTIONS
Important safety instructions –
Save these instructions
When using an electrical appliance, basic precautions
should always be followed, including the following:
• The use of this machine in conjunction with the pick-up
of ingredients in weld fume has not been investigated
by CSA Group.
• This fume extraction unit shall NOT be used to pick up
anything that is hot or burning.
• Use only as described in this manual. Use only
manufacturer’s recommended attachments.
• Do not use with damaged cord or plug. If appliance is
not working as it should, has been dropped, damaged,
left outdoors, or dropped into water, return it to a
service center.
• Do not pull or carry by cord, use cord as a handle, close
a door on cord, or pull cord around sharp edges or
corners. Do not run appliance over cord. Keep cord
away from heated surfaces.
• Do not unplug by pulling on cord. To unplug, grasp the
plug, not the cord.
• Do not handle plug or appliance with wet hands.
• Do not put any object into openings. Do not use with
any opening blocked; keep free of dust, lint, hair, and
anything that may reduce air ow.
• Keep hair, loose clothing, ngers, and all parts of body
away from openings and moving parts.
• Turn off all controls before unplugging.
• Do not use to pick up ammable or combustible liquids,
such as gasoline, or use in areas where they may be
present.
• Connect to a properly grounded outlet only. See
Grounding Instructions.
GROUNDING INSTRUCTIONS
A qualified electrician should be consulted if there is any doubt as
to whether an outlet box is properly grounded.
Grounding Instructions for cord and plug connection:
This appliance must be grounded. If it should malfunction or
breakdown, grounding provides a path of least resistance for
electric current to reduce the risk of electric shock. This appliance
is equipped with a cord having an equipment-grounding conductor
and grounding plug. The plug must be inserted into an appropriate
outlet that is properly installed and grounded in accordance with
all local codes and ordinances.
Improper connection of the equipment-
grounding conductor can result in a risk of
electric shock.
The conductor with insulation having an outer surface
that is green with or without yellow stripes is the
equipment-grounding conductor. If repair or replacement
of the cord or plug is necessary, do not connect the
equipment-grounding conductor to a live terminal. Check
with a qualied electrician or serviceman if the grounding
instructions are not completely understood, or if in doubt
as to whether the appliance is properly grounded. Do not
modify the plug provided with the appliance – if it will not
t the outlet, have a proper outlet installed by a qualied
electrician.
Grounding Instructions for permanent connection:
This appliance must be connected to a grounded, metal,
permanent wiring system.
The installer is responsible for following Federal, State
and Local safety codes and regulations.
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts such as
internal wiring.
• Turn the input power off at the fuse box
before working on this equipment.
• Have a qualied person install and service this
equipment.
MOVING PARTS can injure.
• Do not operate with covers open or lter
removed.
• Keep away from moving parts.
Only qualied personnel should install, use or service this
equipment.
To Reduce The Risk Of Electric Shock –
Do not use on wet surfaces.
Do not expose to rain. Store indoors.
To Reduce The Risk Of Injury From Moving
Parts – Unplug Before Servicing
TO REDUCE THE RISK OF
ELECTRIC SHOCK – UNPLUG BEFORE
CLEANING OR SERVICING.
WARNING
WARNING
WARNING
CAUTION
WARNING
DANGER
SAFETY

3
SAFETY
As a rule of thumb, for many mild steel electrode, if the air is visibly
clear and you are comfortable, then the ventilation is generally
adequate for your work. The most accurate way to determine if the
worker exposure does not exceed the applicable exposure limit for
compounds in the fumes and gases is to have an industrial hygienist
take and analyze a sample of the air you are breathing. This is
particularly important if you are welding with stainless, hardfacing or
Special Ventilation products. All Lincoln MSDS have a maximum fume
guideline number. If exposure to total fume is kept below that
number, exposure to all fume from the electrode (not coatings or
plating on the work) will be below the TLV.
There are steps that you can take to identify hazardous substances in
your welding environment. Read the product label and material safety
data sheet for the electrode posted in the work place or in the
electrode or flux container to see what fumes can be reasonably
expected from use of the product and to determine if special
ventilation is needed. Secondly, know what the base metal is and
determine if there is any paint, plating, or coating that could expose
you to toxic fumes and/or gases. Remove it from the metal being
welded, if possible. If you start to feel uncomfortable, dizzy or
nauseous, there is a possibility that you are being overexposed to
fumes and gases, or suffering from oxygen deficiency. Stop welding
and get some fresh air immediately. Notify your supervisor and co-
workers so the situation can be corrected and other workers can
avoid the hazard. Be sure you are following these safe practices, the
consumable labeling and MSDS to improve the ventilation in your
area. Do not continue welding until the situation has been corrected.
NOTE: The MSDS for all Lincoln consumables is available on Lincoln’s
website: www.lincolnelectric.com
Before we turn to the methods available to control welding fume
exposure, you should understand a few basic terms:
Natural Ventilation is the movement of air through the
workplace caused by natural forces. Outside, this is usually the
wind. Inside, this may be the flow of air through open windows
and doors.
Mechanical Ventilation is the movement of air through the
workplace caused by an electrical device such as a portable fan
or permanently mounted fan in the ceiling or wall.
Source Extraction (Local Exhaust) is a mechanical device used
to capture welding fume at or near the arc and filter conta-
minants out of the air.
The ventilation or exhaust needed for your application depends upon
many factors such as:
• Workspace volume
• Workspace configuration
• Number of welders
• Welding process and current
• Consumables used (mild steel, hardfacing, stainless, etc.)
• Allowable levels (TLV, PEL, etc.)
• Material welded (including paint or plating)
• Natural airflow
Your work area has adequate ventilation when there is enough
ventilation and/or exhaust to control worker exposure to hazardous
materials in the welding fumes and gases so the applicable limits for
those materials is not exceeded. See chart of TLV and PEL for Typical
Electrode Ingredients, the OSHA PEL (Permissible Exposure Limit), and
the recommended guideline, the ACGIH TLV (Threshold Limit Value),
for many compounds found in welding fume.
Ventilation
There are many methods which can be selected by the user to
provide adequate ventilation for the specific application. The following
section provides general information which may be helpful in
evaluating what type of ventilation equipment may be suitable for
your application. When ventilation equipment is installed, you should
confirm worker exposure is controlled within applicable OSHA PEL
and/or ACGIH TLV. According to OSHA regulations, when welding and
cutting (mild steels), natural ventilation is usually considered
sufficient to meet requirements, provided that:
1. The room or welding area contains at least 10,000 cubic feet
(about 22' x 22' x 22') for each welder.
2. The ceiling height is not less than 16 feet.
3. Cross ventilation is not blocked by partitions, equipment, or
other structural barriers.
4. Welding is not done in a confined space.
Spaces that do not meet these requirements should be equipped with
mechanical ventilating equipment that exhausts at least 2000 CFM of
air for each welder, except where local exhaust hoods or booths, or
air-line respirators are used.
Important Safety Note:
When welding with electrodes which require special
ventilation such as stainless or hardfacing (see
instructions on container or MSDS) or on lead or
cadmium plated steel and other metals or coatings which
produce hazardous fumes, keep exposure as low as
possible and below exposure limit values (PEL and TLV)
for materials in the fume using local exhaust or
mechanical ventilation. In conned spaces or in some
circumstances, for example outdoors, a respirator may
be required if exposure cannot be controlled to the PEL
or TLV. (See MSDS and chart of TLV and PEL for Typical
Electrode Ingredients.) Additional precautions are also
required when welding on galvanized steel.

4
SAFETY
BIBLIOGRAPHY AND SUGGESTED READING
ANSI Z87.1, Practice for Occupational and Educational Eye and Face
Protection, American National Standards Institute, 11 West 42nd
Street, New York, NY 10036.
Arc Welding and Your Health: A Handbook of Health Information for
Welding. Published by The American Industrial Hygiene Association,
2700 Prosperity Avenue, Suite 250, Fairfax, VA 22031-4319.
NFPA Standard 51B, Cutting and Welding Processes, National Fire
Protection Association, 1 Batterymarch Park, P.O. Box 9146, Quincy,
MA 02269-9959.
OSHA General Industry Standard 29 CFR 1910 Subpart Q. OSHA
Hazard Communication Standard 29 CFR 1910.1200. Available from
the Occupational Safety and Health Administration at
http://www.osha.org or contact your local OSHA office.
The following publications are published by The American Welding
Society, P.O. Box 351040, Miami, Florida 33135. AWS publications
may be purchased from the American Welding society at
http://www.aws.org or by contacting the AWS at 800-443-9353.
ANSI, Standard Z49.1, Safety in Welding, Cutting and Allied
Processes. Z49.1 is now available for download at no charge at
http://www.lincolnelectric.com/community/safety/ or at the AWS
website http://www.aws.org.
AWS F1.1, Method for Sampling Airborne Particulates Generated by
Welding and Allied Processes.
AWS F1.2, Laboratory Method for Measuring Fume Generation Rates
and Total Fume Emission of Welding and Allied Processes.
AWS F1.3, Evaluating Contaminants in the Welding Environment: A
Strategic Sampling Guide.
AWS F1.5, Methods for Sampling and Analyzing Gases from Welding
and Allied Processes.
AWS F3.2, Ventilation Guide for Welding Fume Control
AWS F4.1, Recommended Safe Practices for the Preparation for
Welding and Cutting of Containers and Piping That Have Held
Hazardous Substances.
AWS SHF, Safety and Health Facts Sheets. Available free of charge
from the AWS website at http://www.aws.org.
Supplemental Information:
(*) Not listed. Nuisance value maximum is 10 milligrams per
cubic meter. PEL value for iron oxide is 10 milligrams per
cubic meter. TLV value for iron oxide is 5 milligrams per
cubic meter.
(**) As respirable dust.
(*****) Subject to the reporting requirements of Sections 311,
312, and 313 of the Emergency Planning and Community
Right-to-Know Act of 1986 and of 40CFR 370 and 372.
(b) The PEL for chromium (VI) is .005 milligrams per cubic
meter as an 8 hour time weighted average. The TLV for
water-soluble chromium (VI) is 0.05 milligrams per cubic
meter. The TLV for insoluble chromium (VI) is 0.01 mil-
ligrams per cubic meter.
(c) Values are for manganese fume. STEL (Short Term
Exposure Limit) is 3.0 milligrams per cubic meter. OSHA
PEL is a ceiling value.
(****) The TLV for soluble barium compounds is 0.5 mg/m3.
TLV and PEL values are as of October 2013. Always check
Safety Data Sheet (SDS) with product or on the Lincoln Electric
website at http://www.lincolnelectric.com
LISTED BELOW ARE SOME TYPICAL INGREDIENTS IN WELDING ELECTRODES AND
THEIR TLV (ACGIH) GUIDELINES AND PEL (OSHA) EXPOSURE LIMITS
INGREDIENTS CAS No. TLV mg/m3PEL mg/m3
Aluminum and/or aluminum alloys (as AI)***** 7429-90-5 1.0 15
Aluminum oxide and/or Bauxite***** 1344-28-1 1.0 5**
Barium compounds (as Ba)***** 513-77-9 0.5 0.5
Chromium and chromium alloys or compounds (as Cr)***** 7440-47-3 0.5(b) 0.5(b)
Hexavalent Chromium (Cr VI) 18540-29-9 0.05(b) .005(b)
Copper Fume 7440-50-8 0.2 0.1
Cobalt Compounds 7440-48-4 0.02 0.1
Fluorides (as F) 7789-75-5 2.5 2.5
Iron 7439-89-6 10* 10*
Limestone and/or calcium carbonate 1317-65-3 10* 15
Lithium compounds (as Li) 554-13-2 15 10*
Magnesite 1309-48-4 10 15
Magnesium and/or magnesium alloys and compounds (as Mg) 7439-95-4 10* 10*
Manganese and/or manganese alloys and compounds (as Mn)***** 7439-96-5 0.02 5.0(c)
Mineral silicates 1332-58-7 5** 5**
Molybdenum alloys (as Mo) 7439-98-7 10 10
Nickel***** 7440-02-0 0.1 1
Silicates and other binders 1344-09-8 10* 10*
Silicon and/or silicon alloys and compounds (as Si) 7440-21-3 10* 10*
Strontium compounds (as Sr) 1633-05-2 10* 10*
Zirconium alloys and compounds (as Zr) 12004-83-0 5 5

5
TABLE OF CONTENTS
Page
INSTALLATION .........................................................................................................................................SECTION A
TECHNICAL SPECIFICATIONS ................................................................................................................................A-1
GENERAL DESCRIPTION.........................................................................................................................................A-2
INTENDED USE......................................................................................................................................................A-2
COMPONENTS.......................................................................................................................................................A-2
INSTALLATION.......................................................................................................................................................A-3
SELECT SUITABLE LOCATION ................................................................................................................................A-3
ENVIRONMENTAL AREA.........................................................................................................................................A-3
STACKING ............................................................................................................................................................A-3
TOOLS REQUIRED:.................................................................................................................................................A-3
UNPACKING AND REMOVING FROM PALLET...........................................................................................................A-3
POSITIONING.........................................................................................................................................................A-3
BACKDRAFT PANEL AND SIDE PANELS..................................................................................................................A-4
COMPRESSED AIR CONNECTION ...........................................................................................................................A-5
WORK GRID...........................................................................................................................................................A-5
ELECTRICAL CONNECTION.....................................................................................................................................A-6
CONNECTION TO THE INPUT POWER .....................................................................................................................A-7
DIRECTION OF ROTATION ......................................................................................................................................A-7
HEPA KIT ............................................................................................................................................................A-9
SILENCER/OUTLET DUCT.....................................................................................................................................A-10
WORKING LIGHT..................................................................................................................................................A-11
MOVEMENT SENSOR...........................................................................................................................................A-11
WELDING CABLE SENSOR....................................................................................................................................A-12
BENCH VICE MOUNTING BRACKET.......................................................................................................................A-12
WHEEL KIT ..........................................................................................................................................................A-12
PLASMA CUTTING WORK GRID ............................................................................................................................A-13
OPERATION ..............................................................................................................................................SECTION B
ACCESSORIES ..........................................................................................................................................SECTION C
MAINTENANCE.........................................................................................................................................SECTION D
SERVICE, MAINTENANCE AND REPAIRS.................................................................................................................D-1
PERIODIC MAINTENANCE ......................................................................................................................................D-1
DISPOSAL ............................................................................................................................................................D-2
FILTER REPLACEMENT..........................................................................................................................................D-3
HEPA FILTER (OPTIONAL) ......................................................................................................................................D-3
Troubleshooting.........................................................................................................................................Section E
Parts .................................................................................................parts.lincolnelectric.com
Content/details may be changed or updated without notice. For most current Instruction Manuals or Parts Page, go to
parts.lincolnelectric.com.

A-1
INSTALLATION
PRISM ® DOWN DRAFT& PRISM ®DOWN DRAFT WITH MECHANIZED CLEANING
TECHNICAL SPECIFICATIONS -
®®
PHYSICAL DIMENSIONS
LENGTH DEPTH HEIGHT HEIGHT ADJUSTMENT
54.7.
1389 MM
39.2 IN
996 MM
61.6 IN
1565 MM
1.5 IN. (38 MM) ADDITIONAL
HEIGHT FOR LEVELING
FOR WHEEL KIT, HEIGHT IS
62.9 IN. (1598 MM)
WEIGHT
PRISM
®DOWN DRAFT 683 LBS. (310 KG)
718 LBS. (326 KG)
CONNECTION VOLTAGE +/- 10%
K2751-10 & K2751-11 208-230V/460V/3PH/60HZ
K2751-13 & K2751-15 380V/3PH/50HZ
K2751-14 & K2751-16 575V/3PH/60HZ
RATED CURRENT DRAW
208V/60HZ 11.7A
230V/60HZ 10.5A
380V/50HZ 4.1A
460V/60HZ 5.4A
575V/60HZ 3.8A
SOUND LEVEL
WITHOUT OPTIONS 78 DB(A)
WITH SILENCER 74 DB(A)
WITH SILENCER AND HEPA KIT 71 DB(A)
AMBIENT CONDITIONS
MIN. OPERATING TEMP 41ºF (5ºC)
NOM. OPERATING TEMP 68ºF (20ºC)
MAX. OPERATING TEMP 104ºF (40ºC)
MAX. RELATIVE HUMIDITY 80%
PRISM
®
DOWN DRAFT WITH MECHANIZED CLEANING
COMPRESSED AIR CONNECTION
1/4 inch male pneumatic
quick disconnect (ISO 6150
B profile - 1/4")
COMPRESSED AIR PRESSURE 70 - 120 PSI (5 - 8 BAR)
REQUIRED COMPRESSED AIR QUALITY DRY AND OIL-FREE
DEFAULT SETTING
K2751-10 & K2751-11 460V
K2751-13 & K2751-15 380V
K2751-14 & K2751-16 575V
POWER CONSUMPTION
3 KW (4HP)
PROTECTION CLASS
NEMA 1 (CONTROL BOX ONLY)
MAIN FILTER SURFACE AREA
2 X 284 FT
2(2 X 26 M 2)
MERV 16 FILTER CLASS
TO DIN EN 60335-2-69
M
MAINS CORD
6 FT. (1.8 M) - PLUG NOT
SUPPLIED
MAXIMUM LOAD
440 LBS. (200 KG) (IN CASE OF WHEEL KIT:
330 LBS. (150KG))
PRISM® DOWN DRAFT WITH
MECHANIZED CLEANING
COMPRESSED AIR CONSUMPTION 5 CFM
CLEARANCES
Minimum side clearance for Left
and right side panel door swing
(if utilized)
3 feet
(900mm)
Minimum left side discharge
air clearance
1 foot
(300mm)

A-2
INSTALLATION
PRISM®DOWN DRAFT & PRISM®DOWN DRAFT WITH MECHANIZED CLEANING
GENERAL DESCRIPTION
The downdraft table is a workbench with an integrated extraction
fan and filtration system that is used for welding, grinding and
plasma cutting applications. Depending on the specific
application, the use of certain accessories is required and/or
recommended. See Accessories section of this manual.
The downdraft table features a work grid, a three-stage
prefiltration system for optimum spark arresting and two oval
main filter cartridges. Both pre and main filters have dust drawers
underneath.
INTENDED USE
The product has been designed as a workbench with integrated
extraction and filtration facility for welding, plasma cutting and
grinding purposes, provided the appropriate options have been
installed (See Accessories Section of this manual). Using the
product for other purposes is considered contrary to its intended
use.
The manufacturer accepts no liability for any damage or injury
resulting from such use. The product has been built in accordance
with state-of-the-art standards and recognized safety regulations.
Only use this product when in technically perfect condition in
accordance with its intended use and the instructions explained in
the user manual.
COMPONENTS
The downdraft table consists of the following main components
See Figures A.1:
A. Backdraft Panel with louvers
B. Side panels (left + right)
C. Work grid (two-piece)
D. Control panel
E. Left door (controls/fan)
F. Right door (filter compartment)
G. Compressed air tank (PRISM®DOWN DRAFT WITH MECHANIZED CLEANING)
H. Two Prefilters (1st stage; located under work grid)
I. Dust drawers (2nd stage prefiltration)
J. Dust drawer (main filter cartridges)
K. Filter cleaning mechanism
(PRISM®DOWN DRAFT WITH MECHANIZED CLEANING)
L. Filter cartridges (2)
M. Two Prefilters (3rd stage)
N. Fan and motor
O. Outlet grid
P. High voltage electrical box
Q. Low voltage electrical box
R. Diffusion plates (2)
A
B
H
R
C
Q
E
D
P
I
M
NJL
F
O
FIGURE A.1

A-3
INSTALLATION
INSTALLATION
SELECT SUITABLE LOCATION
The PRISM®DOWN DRAFT table must be installed on a
dry, level and secure surface.
ENVIRONMENTAL AREA
The PRISM®DOWN DRAFT table is for indoor use only.
STACKING
The PRISM®DOWN DRAFT table CANNOT be stacked.
TOOLS REQUIRED:
10mm Wrench
10mm Socket Wrench
13mm Wrench
Phillips Screwdriver
UNPACKING
Check that the product is complete. The package should contain:
• Downdraft table
• Prefilter (2)
• Diffusion plate (2)
• Standard work grid (2)
• Backdraft panel
• Side panels (left & right)
• Hardware bag which includes:
- Square key 8 mm (to lock/unlock front doors)
- Square key 6 mm (to lock/unlock dust drawers and
electrical boxes)
- Screws M6 x 20 mm philips head (10)
- Hex coupling nut M8 x 25mm (4)
- Three-part block hinge M8 (4) (each hinge includes 3
M8 nuts and 3 M8 lock washers)
- Locking clamp for work grid (2)
If parts are missing or damaged, contact Lincoln Electric.
NOTE: Remove all foam sheet packing material from around the
prefilters and diffusion plates.
REMOVING UNIT FROM PALLET
Remove the (4) wood screws that are holding the front blocking
board to the pallet. Carefully use a fork-lift truck to lift the unit off
of the pallet. The forks of the truck should not penetrate past the
back side of the unit, or they will catch on the rear blocking board.
POSITIONING
The downdraft table can be positioned using:
• A fork-lift truck (preferred way); or
• A pallet jack (downdraft table has to be tilted); or
• Cargo lashings lifted by a fork-lift truck. See Figure A.2.
Do not position the product where it is exposed to
vibrations or heat radiation from heat sources. Observe the
earlier described ambient conditions.
FALLING EQUIPMENT can cause
injury.
• Lift only with equipment of adequate lifting
capacity.
• Be sure machine is stable when lifting.
• Do not lift this machine using lift bail if it is equipped
with a heavy accessory such as trailer or gas cylinder.
• Do not lift machine if lift bail is damaged.
• Do not operate machine while suspended from lift bail.
FIGURE A.2
• Position the downdraft table against the wall.
• If necessary, use the adjusting feet to level the downdraft table and
to adjust it to the desired height 37-38.5 in (940mm - 978mm). See
Figure A.3.
FIGURE A.3
CAUTION
WARNING
1.5"
(38mm)
PRISM®DOWN DRAFT & PRISM®DOWN DRAFT WITH MECHANIZED CLEANING

A-4
INSTALLATION
BACKDRAFT PANEL AND SIDE PANELS
NOTE: When the downdraft table will be used for grinding only, it
is not necessary to mount the diffusion plates. For welding
and plasma cutting, however, the diffusion plates are
required.
NOTE: The Backdraft Panel is required for welding applications.
1. In order to gain access inside the Backdraft Panel, remove the
Backdraft louver panel by removing the (6) M6 x 20 mm
Philips head screws.
2. Assemble and Install the four Block Hinges onto the sides of
the Backdraft Table. See Fig. A.4. Use the M8 nuts and M8
washers included with the hinge. Remove and discard the
standard M8 Hex Nut that is located on the door side of the
hinge. See Fig. A.8.
3. Reassemble the louver panel to the Backdraft Panel by using
only (4) of the M6 x 20mm screws. Leave the bottom two
screws out until the Backdraft Panel is lifted onto the Dust
Collection Tray.
4. Using two people, lift the Backdraft Panel, with louvers and
hinges, onto the back of the Dust Collection Tray. Use (8) of
the M6 x 20 mm Philips head screws to fasten them together.
See Fig. A.5 & A.6. Be sure the diffusion plates are in place
over the spark arrestors, if the table is being used for welding
or plasma cutting applications.
5. Fasten the two Side Door Panels onto the four Block Hinges
using the four 25mm long Hex Connection Nuts. See Fig. A.7
FIGURE A.4
FIGURE A.5
FIGURE A.6
FIGURE A.7
FIGURE A.8
M6 x 20 screws
Discard
25mm long Hex Connection nut
Block Hinge
M6 x 20mm screws
M8 nuts
M8 washers
M8 washers
PRISM®DOWN DRAFT & PRISM®DOWN DRAFT WITH MECHANIZED CLEANING

A-5
INSTALLATION
COMPRESSED AIR CONNECTION
(PRISM®DOWN DRAFT WITH MECHANIZED
CLEANING
The downdraft table cleaning mechanism functions on
compressed air with a recommended supply pressure of 70-120
psi (5-8 bar). If required, mount a pressure reducing valve to
prevent overpressure.
The internal pressure regulator is factory set to ensure a working
pressure between the values of 65-70 psi (4.5-5 bar).
If the pressure is too high, the safety valve of the system will be
opened, thus decreasing the pressure until the system pressure
has reached an appropriate level.
1. Connect the downdraft table to compressed air. See Figure
A.9, item C. Connection is a 1/4 inch male industrial quick-
connect pneumatic nipple.
FIGURE A.9 – CONNECTIONS
WORK GRID
To mount the standard work grid, proceed as follows. See Figure
A.10
1. Be sure that the prefilters and diffusion plates are in place,
and all foam sheet packing material has been removed.
2. Place the work grids into position.
3. Place the locking clamp over both work grids.
4. Tighten the locking clamp using (2) M6 x 20 Philips head
screws.
NOTE: It is necessary to install the bracket to ground the work
grids.
FIGURE A.10
A B C
PRISM®DOWN DRAFT & PRISM®DOWN DRAFT WITH MECHANIZED CLEANING

A-6
INSTALLATION
ELECTRICAL CONNECTION
TO REDUCE THE RISK OF FIRE,
ELECTRIC SHOCK, OR INJURY
TO PERSONS, OBSERVE
THE FOLLOWING:
Installation work and electrical wiring must be done by
qualied person(s) in accordance with all applicable codes
and standards, including re-rated construction.
If necessary: change motor from 460V to 208/230V
The table is shipped as either:
1. 460V 3~ 60Hz; with 115V (5-15) convenience outlet on front
door
2. 380V 3~ 50Hz; with 230V (CEE 7/4 Schuko) convenience outlet
on front door
3. 575V 3~ 60Hz; with 115V (5-15) convenience outlet on front
door
Make sure the downdraft table is disconnected
from input power.
Depending on the local input power voltage, the 460V table can be
changed to 208V 3~ 60Hz or 230V 3~ 60Hz
This is a three step process and concerns the motor, the
transformer, and the overload relay.
STEP 1 – Change the motor from high voltage (460V) to low
voltage (208-230V)
1. Using the large 8mm square key to unlock and open the left
door / fan compartment - Fig. A.1 item E.
2. Using a Philips screw driver (or 9/32 nut driver), remove 4
screws from the motor connection box cover (Fig. A.1 item N),
and set it aside.
3. Using a 5/16 nut driver, disconnect the black, red and white
motor power leads from contacts U1, V1 and W1.
4. Using the 5/16 nut driver, reconfigure the motor jumpers from
the high voltage configuration (YY) to the low voltage config-
uration (Y). See Fig. A.11
MOTOR LEAD JUMPERS ARE PROVIDED WITH THE MOTOR IN THE
CONNECTION BLOCK.
FIG. A.11
5. Reconnect the black, red and white motor power leads to
contacts U1, V1 and W1 respectively.
6. Torque all motor terminal nuts to 51-53 lb-in (5.8-6.0 Nm)
7. Reassemble the motor connection box cover with the 4
screws.
STEP 2 – Reconfigure the transformer TRI from 460V to 208V or
230V
8. Use the small 6mm square key to unlock and open the high
voltage electrical compartment - Fig. A.1 item P. It is the
lower of the two inner doors.
9. Using a small flat head screwdriver, disconnect the grey lead
014 from the 460V tap (white) of the primary side of the
toroidal transformer, and reattach it to either the 208V tap
(brown) or the 230V tap (orange) of the transformer. See Fig.
A.12.
FIG. A.12
10. Torque the transformer terminal screws to 4-6 lb-in (0.5-0.7
Nm).
WARNING
WARNING
U2 V2 W2
U3 V3 W3
U1 V1 W1
BLK RED WHT
U2 V2 W2
U3 V3 W3
U1 V1 W1
BLK RED WHT
208V or 230V
LOW VOLTAGE
460V
HIGH VOLTAGE
Also 380V
Fig. A.11
014 LEAD connected
to fuse F1
460V loca on
MOVE
OR
230V loca on
208V loca on
Neutral Tap
014
014
014
015
PRISM®DOWN DRAFT & PRISM®DOWN DRAFT WITH MECHANIZED CLEANING

A-7
INSTALLATION
STEP 3 – Set the overload relay OL1
11. Using a small flat head screwdriver, set the current setting to
the appropriate value as listed in the table.
FIG. A.13
12. Close and lock all doors using the small and large square
keys.
OL1 OVERLOAD RELAY CURRENT SETTING
575V 3.8A
460V 5.4A
380V 4.1A
230V 10.5A
208V 11.7A
F1
016
F2
017
PRISM®DOWN DRAFT
TORQUE SCREWS
5.3 - 7 lb-in (0.6 - 0.8 Nm)
TORQUE
SCREWS
22 - 26 lb-in
(2.5 - 3 Nm)
0V
1
F3
24V
23
0V
5
L1
7
L2
8
L3
9
U
10
V
11
W
12
4
F4
120V
6
2
3
4
5
6
11
10
9
8
7
YELLOW
VIOLET
RED
BLUE
GRAY
VIOLET
WHITE
GREEN
ORANGE
BLACK
BROWN
575V
460V
380V
230V
208V
0V
230V
30VA
0V
0V
120V
30VA
24V
35VA
TORQUE TERMINAL SCREWS
4 - 6 lb-in (0.5 - 0.7 Nm)
TR1
TRANSFORMER
1
575V -3.8A
460V - 5.4A
380V - 4.1A
230V-10.5A
208V-11.7A
OL1
OVERLOAD
RELAY
CURRENT
SETTING
TORQUE
MAIN CIRCUIT
22 lb-in (2.5 Nm)
CONTROLS
5 lb-in (0.6 Nm)
FUSE ID
1A 600VAC TIME DELAY
CLASS CC
F1, F2
1.25A 250VAC TIME DELAY
1.25 in. X 0.25 in. OD
F3
F4
TYPE AND RATING
0.5A 250VAC TIME DELAY
1.25 in. X 0.25 in. OD
K1
CONTACTOR
TORQUE
13.3-17.7 lb-in (1.5-2.0 Nm)
SECONDARY TAPS PRIMARY TAPS
FIGURE A.14
PRISM®DOWN DRAFT & PRISM®DOWN DRAFT WITH MECHANIZED CLEANING

A-8
INSTALLATION
CONNECTION TO THE INPUT POWER
To connect the downdraft table to the input power, proceed as
follows.
1. Mount a fuse in the local fuse box to which the downdraft table
will be connected. Check the electrical diagram for the right
type of fuse. Refer to the following:
All PRISM®DOWN DRAFT will use wiring diagram S31227-142
All PRISM®DOWN DRAFT WITH MECHANIZED CLEANING will
use wiring diagram S31227-274
Be sure to mount the right fuse
type.
Plugs/connections to be installed in
accordance with the National Electrical Code
(NEC) and local requirements.
The downdraft table can be connected to input power by:
• 3 phase plug (grounded) for the main power, and a grounded
5-15 or CEE 7/4 Schuko for the front convenience outlet.
• Directly to the power supply
1. Connect the main cord (A) to the input power. See Figure
A.12.
2. Connect the front convenience receptacle (B) to the input
power.
FIGURE A.12 – ELECTRIC CONNECTION
WARNING – TO REDUCE THE RISK OF FIRE,
ELECTRIC SHOCK, OR INJURY TO
PERSONS, OBSERVE THE FOLLOWING:
a) Use this unit only in the manner intended by the
manufacturer. If you have questions, contact the
manufacturer.
b) Before servicing or cleaning unit, switch power off at
service panel and lock the service disconnecting means
to prevent power from being switched on accidentally.
When the service disconnecting means cannot be
locked, securely fasten a prominent warning device,
such as a tag, to the service panel.
Do not open the door within 20 seconds after
switching off the fan. Keep your hands away
from the fan wheel.
DIRECTION OF ROTATION
Check the direction of rotation of the fan.
1. Turn on the main switch.
2. Push the ON button to switch on the fan.
3. Push the OFF button to switch off the fan.
4. Wait 10 seconds.
5. Open the left door.
6. Check the direction of label during the slow-down period of
the fan. The motor contains a label indicating the correct
direction rotation.
If the fan is not running in the correct direction, then:
1. Turn off the main switch.
2. Swap 2 phases of the 3~ input power in the motor connection
box (N) see Fig A.1
3. Replace the cover of the motor connection block.
4. Close and lock all doors.
WARNING
A
WARNING
WARNING
B
PRISM®DOWN DRAFT & PRISM®DOWN DRAFT WITH MECHANIZED CLEANING

A-9
INSTALLATION
HEPA KIT
Handle HEPA box and lter cartridge with care during
unpacking and mounting to avoid damage.
The HEPA kit consists of:
• HEPA box with filter
• 2 Adjustable feet
• 4 Spare bolts M6
• Draft strip
To mount the HEPA kit, proceed as follows.
1. Unscrew and remove the outlet panel from the downdraft
table. Keep the 4 screws See Figure A.16, top image.
2. Unlock the HEPA filter cartridge by pressing a screwdriver or
other tool at the position of the strips (B) on the top and
bottom of unit. See Figure A.15.
3. Take out the filter cartridge.
4. Mount the adjustable feet underneath the HEPA kit.
NOTE: Remove the outlet panel from the HEPA kit, as well as the
outlet grid inside the downdraft table, to facilitate
mounting. Don’t forget to replace them when mounting is
complete.
5. Place bolts halfway through the 2 upper holes (C) at the outlet
of the downdraft table. See Figure A.15.
6. Hang the HEPA box on the bolts.
7. Place bolts through the 2 lower holes (D) in the HEPA box.
See Figure A.15
8. Fasten the HEPA box by tightening the 4 bolts (C+D). See
Figure A.15.
9. Replace the filter cartridge.
10. Lock the filter cartridge by pulling the two straps tightly. This
is indicated by a “click” sound.
NOTE: If a Silencer/Outlet duct has to be installed as well, the
outlet panel of the HEPA kit does not need to be mounted.
11. Adjust the feet when the downdraft table is placed in place in
its final position.
NOTE: The outlet panel of the downdraft table is not used.
FIGURE A.15 – HEPA KIT
ATTENTION
B (2x)
A
C (x2)
D (x2)
PRISM®DOWN DRAFT & PRISM®DOWN DRAFT WITH MECHANIZED CLEANING

A-10
INSTALLATION
SILENCER/OUTLET DUCT
The Silencer/Outlet duct consists of:
• Shaft
• Draft strip
The Silencer/outlet duct can be connected to the HEPA kit or
directly to the downdraft table.
To mount the silencer/outlet duct, proceed as follows. See Figure
A.16.
1. If necessary: unscrew the outlet panel of the downdraft table or
the outlet panel of the HEPA kit. Keep the 4 bolts.
2. Apply the draft strip to the downdraft table (A) or HEPA kit (B).
See Figure A.16.
3. Place bolts halfway through the 2 lower holes at the outlet of
the downdraft table or HEPA box (C). See Figure A.16.
4. Place the silencer/outlet duct over the bolts (D). See Figure
A.16.
5. Put the silencer/outlet duct in an upright position and place 2
bolts in the 2 upper holes.
6. Fasten the silencer/outlet duct by tightening the 4 bolts (E).
See Figure A.16.
NOTE: The outlet panel of the downdraft table is not used.
FIGURE A.16 – SILENCER / OUTLET DUCT
B
A
C (x2)
D
E (x4)
PRISM®DOWN DRAFT & PRISM®DOWN DRAFT WITH MECHANIZED CLEANING

A-11
INSTALLATION
WORKING LIGHT
The working light consists of:
• Lighting fixture with 7.5 ft (2.3 m) of cable and plug
• 6 Bolts M6
• 3 Tie-wraps
To mount the working light, proceed as follows.
1. Mount the lighting fixture using the 6 bolts (A). See Figure
A.17.
2. Route the cable down the back side of the downdraft table.
3. Attach the cable to the back panel using the 3 cable tie mounts
and cable ties (B). See Figure A.17
4. Connect the cable. See Figure A.18, item B.
FIGURE A.17 – WORKING LIGHT
FIGURE A.18 – CONNECTIONS
A (x6)
B (x3)
A B C
PRISM®DOWN DRAFT & PRISM®DOWN DRAFT WITH MECHANIZED CLEANING