Lang LVC-46 User manual

IL2629a
VENTLESS UNIVERSAL
HOOD SYSTEM
for ELECTRIC OVENS,
PROOFERS & HOLDERS
LVC-46
LVC-46X
Installation and
Operation
Instructions
2M-W2029 Rev. - 8/27/14
LVC-46

p/n 2M-W2029 OpM LVC- Ventless Universal Hood
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xi
These symbols are intended to alert the user to the presence of
important operating and maintenance instructions in the manual
accompanying the appliance.
FOR YOUR SAFTEY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN
THE VICINTIY OF THIS OR ANY OTHER APPLIANCE.
POST IN PROMINENT LOCATION
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT USER SMELLS GAS. THIS
INFORMATION SHALL BE OBTAINED BY CONSULTING YOUR LOCAL GAS SUPPLIER.
AS A MINIMUM, TURN OFF THE GAS AND CALL YOUR GAS COMPANY AND YOUR
AUTHORIZED SERVICE AGENT. EVACUATE ALL PERSONNEL FROM THE AREA.
WARNING
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE
CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH. READ THE INSTALLATION,
OPERATION & MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR
SERVICING THIS EQUIPMENT.
WARNING
RISK OF FIRE OR ELECTRIC SHOCK
DO NOT OPEN
WARNING, TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE
CONTROL PANEL. NO USER-SERVICABLE PARTS INSIDE.
REPAIRS SHOULD BE DONE BY AUTHORIZED SERVICE PERSONNEL ONLY.
NOTICE
Using any part other than genuine Lang factory supplied parts relieves the manufacturer of all
liability.
Lang reserves the right to change specications and product design without notice. Such
revisions do not entitle the buyer to corresponding changes, improvements, additions or
replacements for previously purchased equipment.
Due to periodic changes in designs, methods, procedures, policies and regulations,
the specications contained in this sheet are subject to change without notice. While
Lang exercises good faith efforts to provide information that is accurate, we are not
responsible for errors or omissions in information provided or conclusions reached as a
result of using the specications. By using the information provided, the user assumes all risks
in connection with such use.
MAINTENANCE AND REPAIRS
Contact your local dealer for service or required maintenance. Please record the model number, serial
number, voltage and purchase & Installation Information in the area below and have it ready when you
call to ensure a faster service.
SAFETY SYMBOL
Model No.:
Serial No.:
Voltage:
1-Phase or 3 Phase:
Purchased From:
Location:
Purchase Date:
Installed Date:

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ELECTRICAL SPECIFICATIONS 1
FEATURES & OPERATING CONTROLS 2-3
PRECAUTIONS & GENERAL INFORMATION 4
AGENCY LISTING INFORMATION 5
INSTALLATION 5
Unpacking & Inspection 5
Components 5
Under-Hood Appliance Limitations 6
Service Technician Installation Notes 7
Site Preparation 9
Mechanical Installation 9
 DischargeDirectionModication 10-11
Electrical Installation 12-14
ANSUL® INSTALLATION & SETUP 13-14
Filter Installation 15
OPERATION 16
Operation Lights 16
CLEANING INSTRUCTIONS 17-18
REQUIREDMAINTENANCE&MAINTENANCELOGS 20-23
TROUBLESHOOTING SUGGESTIONS 24
WIRING DIAGRAM 25
EXPLODED VIEW & PARTS LIST 26-29
Thank You for purchasing this Lang Manufacturing appliance.
Proper installation, professional operation and consistent maintenance of this appliance will ensure
that it gives you the very best performance and a long, economical service life.
This manual contains information and instructions for the ventless ventilation hood, its use and care.
For information regarding cooking appliance(s), please refer to the manufacturer’s operation manual.
TABLE OF CONTENTS
ELECTRICAL SPECIFICATIONS
INTRODUCTION
Model Volts Amps Power Supply
LVC46 208/240V 4.3 For supply connection use #12 AWG copper wire only.
LVC46X
PROBLEMS, QUESTIONS or CONCERNS
Before you proceed consult you authorized Lang service agent directory
or
Call the Lang Technical Service & Parts Department at [phone].

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FEATURES & OPERATING CONTROLS
7
8
17 8 7 17 1
51415
1415
13
Nameplate
16
6 4 2
2
18
19
20
11123
17
IL2631c
13
Nameplate
WVC-46X
WVC-46
16
21
Ventilator Section Operating Features & Controls

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FEATURES & OPERATING CONTROLS continued
FEATURES & OPERATION CONTROLS
ITEM
NO DESCRIPTION COMMENT
1 VENTILATOR EXHAUST DUCT, FRONT Exit point for ventilator airow - on front of unit. DO NOT BLOCK
2 VENTILATOR FAN Provides air movement for ventilation
3HI-EFFICIENCY/CHARCOAL FILTER
PACK
Removes grease and smoke particles. Also assists in cooking odor
removal.
4FIRE SUPPRESSION TANK Container for ANSUL® Low-pH Liquid re suppression uid.
5ACTUATOR ASSY Triggers deployment of suppression uid through manual pull station or
electric detection.
6 ANSUL® CARTRIDGE Propels suppression liquid through suppression manifold and nozzles.
7 DISCHARGE NOZZLES Fire suppression media discharges here, (3 places)
8 ELECTRICAL DETECTORS
Designed to activate at certain temperature. Activates (i.e. re on the
cooktop) activates re suppression system. Should be checked every
6 months during ANSUL® Service Inspection
9APPLIANCE LIGHT (Not Shown) ON when hood power switch is ON. Illuminates cooking area.
10 GREASE DRIP TRAY (Not Shown) Collects grease/moisture dripping from bafe lter (16)
11 BAFFLE FILTER Extracts and drains most greases and moisture from the air ow.
12 PRE-FILTER Replaceable PRE-FILTER, stops large particles of grease from
reaching the FILTER PACK for reduced maintenance costs.
13 EQUIPMENT INTERFACE CONTACTOR Energizes cooking appliances only while ventilator section is sensed as
operational.
14 BUILDING FIRE ALARM RELAY Reports re alarm condition to building re management system.
15 DETECTION END OF LINE RELAY Prevents appliance operation if a fault is found in detection circuit.
16 SUPPLY CONNECTION TERMINAL
BLOCK Provides connection point for electrical circuitry
17 FILTER INTERLOCK SWITCHES Proper installation of bafe lter and lter pack closes these switches in
ventilator sensor circuit
18 HEPA FILTER SWITCH Montitors the HEPA lter and indicates when it needs replacing, if
ignored it will lead to unit shut down.
19 PRE-FILTER SWITCH Monititors the Pre-Filter and indicates when it needs replacing, if
ignored it will lead to unit shut down.
20 UNIT SHUT-DOWN SWITCH Shuts down the unit and appliances when the lack of air ow reaches a
certain level, triggers a service unit indicator.
21 FIRE PROTECTION CONNECTION
TERMIMAL BLOCK Provides connection point for electrical circuitry

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PRECAUTIONS AND GENERAL INFORMATION
This ventilator hood is part of an engineered system and is intended for
use in commercial establishments only.
This ventilator is intended for commercial establishments for use
in the preparation food for human consumption. No other use is
recommended or authorized by the manufacturer or its agents.
Operators of this appliance must be familiar with the appliance use,
limitations and associated restrictions. Operating instructions must be
read and understood by all persons using or installing this appliance.
This ventilator hood system is designed to reduce odor emissions,
but will not completely eliminate all cooking odors. Air exchange
rates at the installation site must comply with the requirements of the
local jurisdictional authority. To ensure that odors do not accumulate,
recommendedminimumairexchangeis200cfmperlinearfootofhood
into and out of the site.
This unit is intended for use with light- and medium duty electric
cooking appliances only. Cooking appliances placed under this
ventilator must comply with the restrictions set forth in the Installation
section of this manual.
Do not connect or energize this appliance until all installation
instructions are read and understood. Property damage or bodily
injury may result if these instructions are not followed. Disconnect this
appliance from electrical power before performing any maintenance or
servicing.
Cleanliness of this appliance is essential to good sanitation. Read and
follow all included cleaning instructions and schedules to ensure the
safety of the food product.
This appliance is not jet steam approved. Do not direct water jet or
steam jet at this appliance, or at any control panel or wiring.
Do not splash or pour water on, in or over any controls, control panel or
wiring.Donotattempttowashlterpacks.Waterwillcausetheir
immediate failure and disable the ventilator.
Exposed surfaces of this appliance can be hot to the touch and may
cause burns.
Avoidstoringammableorcombustiblematerialsin,onornearthe
ventilator or associated cooking appliance.
The technical content of this manual, including any wiring diagrams,
schematics,partsbreakdownillustrationsand/oradjustment
procedures,isintendedforusebyqualiedtechnicalpersonnel.
Any procedure which requires the use of tools must be performed by a
qualiedtechnician.
All supplied instructions, diagrams, schematics, parts breakdown
illustrations, notices and labels must remain with the appliance if the
unit is sold or moved to another location.
This appliance is made in the USA. Unless otherwise noted, this
appliance has American sizes on all hardware.
DANGER:
SUFFOCATION HAZARD
Do not attempt to use this
ventilatorwithgas-redunits.
This ventilator will not remove
products of combustion.
Unvented exhaust gasses
can be deadly.
WARNING:
SHOCK HAZARD
All servicing requiring
access to non-insulated
electrical components must
be performed by a factory
authorized technician.
DO NOT open any access
panel which requires the use
of tools. Failure to follow this
warning can result in severe
electrical shock.
IMPORTANT:
The ventilator is disabled
whentheltersareclogged
tothepointofinsufcient
airowforproperoperation.
Also, power to the cooking
appliances is interrupted if
anyltersorservicepanel
are removed.
It is the responsibility of
the store management to
maintainsufcientspares
oflterpackstoavoid
prolonged shutdown due
toadirtyorcloggedlter
pack. Filter packs cannot be
cleaned.
Lang Manufacturing
assumes no liability for loss
ofbusinessduetoalter
related shutdown. Spare
lterscanbepurchasedfrom
any authorized Lang servicer
or calling [phone].

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AGENCY LISTING INFORMATION
INSTALLATION
NOTE: DO NOT discard
the carton or other packing
materials until you have
inspected the appliance for
hidden damage and tested it
for proper operation.
Refer to SHIPPING DAMAGE
CLAIM PROCEDURE on the
inside front cover of this
manual.
WARNING:
RISK OF INJURY
Installation procedures must
beperformedbyaqualied
technician with full knowledge
of all applicable electrical
codes. Failure can result in
personal injury and property
damage.
IMPORTANT:
Fire suppression system must
bechargedandcertiedbyan
authorized Ansul® distributor.
Ventilator will not operate and
cooking appliance will not be
energizeduntiltheAnsul®re
suppression system has been
charged.
IMPORTANT:
After cooking appliances
are positioned under the
hood, swivel nozzles must
be positioned per Ansul®
recommendations.
UNPACKING & INSPECTION
Carefully remove the appliance from the carton. Remove all
protectiveplasticlm,packingmaterialsandaccessoriesfromthe
appliance before connecting electrical power or otherwise performing
any installation procedure.
Carefully read all instructions in this manual and any other docments
packed with the appliance before starting any installation.
All documentation should remain with the equipment operator for future
reference.
Read and understand all labels and diagrams attached to the
ventilator.
Carefully account for all components and accessories before
discarding packing materials.
COMPONENTS
Pre-Filter 1 ea.
Bafe Filter 1 ea.
Filter pack 1 ea.
Grease cup 1 ea.
Discharge Adapter Kit 1 ea.
Ansul® components - must be installed by an authorized Ansul®
distributor only:
1 ea. Fire suppression agent tank
1 ea. Fire suppression agent (Ansulex® Low pH) 1.5 gal.
1 ea. Fire suppression system charging cartridge
Store these components in a convenient place for later use.
This appliance conforms to NSF Standard 4 for sanitation only if
installed in accordance with the supplied Installation Instructions
and operated and maintained in accordance with the instructions in this
manual.
This appliance is ETL listed.
UL710B
Recurculating System
3169406
US

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INSTALLATION (continued)
UNDER-HOOD APPLIANCE LIMITATIONS:
1. Appliance must be installed per manufactures instructions.
2. Electricalappliancesonly.NotIntendedforgasredunits.
3. All appliances under the hood must be connected to the hood appliance interlock circuit.
4. All appliances must meet the requirements outlined in the cooking appliance limitations chart below.
EQUIPMENT PARAMERTUER - LVC-46 (X)
Parameters Appliance
Type
Max Cooking
Temp
Max Single Units
Cooking Area
Dim “A” (1)
Min.
Dim “A” (2)
Min.
Dim “B” (3)
Min.
Dim “C” (4)
Min.
Dim “D” (5)
Min.
Convection Oven
550°F (287°C) 19 Cubic Feet 1” 6” 3” 0” 8”
Double Stack Oven
Steamer/Combi Oven
Bakery Oven / Proofer
Intended for installation in accordance with:
Thestandardforventilationcontrolandre
protection of commercial cooking operations
NFPA96,theNationalElectricCodeNFPA70
and local codes where applicable.
Only electrically heated appliances are
acceptable for installation. Appliance Operation
Requires the Fire suppression system be setup,
chargedandcertiedbyanauthorizedANSUL®
distributor.Theairowmonitoringsystem
willpreventapplianceoperationifinsufcient
airowisdetectedorallltersarenotinplace.
The service panel must be in place for blower
operation.
1. Dim “A” minimum distance from the lower edge of the hood skirt and the top of the appliance.
2. Dim “A” maximum distance from the lower edge of the hood skirt and the top of the appliance.
3. Dim “B” minimum overhang between the hood side skirt and the appliance side.
4. Dim “C” minimum space between the hood rear skirt and the back panel of the appliance.
5. Dim “D” minimum overhang between the front lower edge of the hood to the oven’s heated surface.
IL2871
52.20”45.82”
SIDE VIEWFRONT VIEW
D
B
AC

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INSTALLATION (continued)
SERVICE TECHNICIAN INSTALLATION NOTES
This ventilator hood is to be used with light-duty and medium-duty
electrically powered cooking appliances only.
•DONOTattempttousethisventilatorhoodwithgas-redunits.
•DO NOT use this ventilator hood with electrical appliances whose
dimensionsorwattagecharacteristicsexceedthosedenedinthe
Under Hood Cooking Appliance Limitations, page 6.
Installation and start up must be performed by an Authorized
Installation Company.
Ansul® Installer must complete the WARRANTY INITIATION form
(2M-303912) included with the unit for the warranty to begin, and record
installation particulars on the CUSTOMER SERVICE DATA form
located at the end of this manual.
IT is the responsibility of the installer to verify that this VENTILATOR
installationisincompliancewiththespecicationslistedinthis
manual, with local code requirements, and in accordance with N.F.P.A
96 the STANDARD FOR VENTILATION CONTROL AND FIRE
PROTECTION OF COMMERCIAL COOKING OPERATIONS.
WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION,
SERVICE OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY
OR DEATH. READ THE INSTALLATION, OPERATION AND MAINTENANCE
INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING
THIS EQUIPMENT.
WARNING: THIS PRODUCT IS NOT PROVIDED WITH AN INTEGRAL
FIRE EXTINGUISHING SYSTEM. AUTHORITIES HAVING JURISDICTION
SHOULD BE CONSULTED AS TO THE REQUIREMENT FOR THIS
EQUIPMENT WITH RESPECT TO FIRE EXTINGUISHING SYSTEMS, SUCH
AS THE NEED FOR FIELD INSTALLED SYSTEMS IN ACCORDANCE WITH
NFPA 96.
DANGER:
SUFFOCATION HAZARD
Do not attempt to use this
ventilatorwithgas-redunits.
This ventilator will not remove
products of combustion.
Unvented exhaust gasses
can be deadly.
WARNING:
SHOCK HAZARD
All servicing requiring
access to non-insulated
electrical components must
be performed by a factory
authorized technician.
DO NOT open any access
panel which requires the use
of tools. Failure to follow this
warning can result in severe
electrical shock.
CAUTION:
RISK OF
DAMAGE
DO NOT connect or energize
this appliance until all
installation instructions are
read and followed. Property
damage or bodily injury could
result if these instructions are
not followed.
IMPORTANT:
If a remote pull station is to
be used, ventilator cannot be
movedwithoutrstdisabling
the remote pull station.
Contact your Ansul® agent
for details.

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INSTALLATION (continued)
Site Preparation
1. Provide clearance around installation site to safety rig and lift
equipmentintoitsnalposition.Considergeneralserviceand
installation space when locating unit.
2. Thoroughlyreviewtheplansandspecicationoftheproject.
3. Determine the exact location in which the cooking hood will be
installed and verify that there are no interferences, which will
prevent proper installation.
4. Verify that all overhead beams and angles are structurally strong
enough to support the weight of the hood and hanging system.
It is often necessary to strengthen existing structural beams, as
they are not designed to carry the weight of a stainless steel hood.
Refer to the project submittal drawing for hood weight(s). It may
also be necessary to create a support structure suspended from
the ceiling joists to better align with the desired hood location.
5. Determine if adequate room is available to install the hood with
proper clearance from combustible material. IMC, NFPA96 and
local authorities having jurisdiction call for a minimum clearance
(typically 18 inches) between the cooking hood(s) and building
materials, which are combustible. However, IMC and NFPA96
outline acceptable clearance reduction methods. It is important to
check with the local authority having jurisdiction to determine that
the installation method is satisfactory to meet their requirements
prior to installing the equipment.

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INSTALLATION (continued)
FRONT
3/8” Top
Mounting Hole
IL2636b
35”
42 1/8”
1 15/16”
3 9/32”
15 3/16”
3 3/4”
3/8” Rear
Mounting Hole
MECHANICAL INSTALLATION
The following is a step-by-step procedure for installation of the Recirculating Hoods.
1. Uncrate the hood, being very careful not to dent or scratch the outer surface. NOTE Report any
damagetothedeliveringfreightcarrierandleaclaimifappropriate.Refertotheinstallation
drawing for typical details of the ventilation system prior to hanging the hood. Check the nameplate
ontheequipmenttomakecertainitmeetsthespecicationsprovidedbythearchitectandor
engineer. If discrepancies exist, notify the manufacturer immediately.
2. It’s important that you have read and understand “Site Preparation” before continuing with the installation
of the hood. See Table on page 6 “EQUIPMENT PARAMERTUER”.
3. Determine the exact location of the hood. Ensure support beams are structural support system is
the responsibility of the contractor and the structural engineer.
4. Use1/2-13threadedrodtohangthehood.Drill5/8”holesinthestructuralsupportsystemusing
dimensions provided below.
5. Eachcornerofthehoodhasapre-punchedhole.Itisimportantthatthe1/2-13threadedrodthat
will be used to suspend the hood is secured at these locations. Each hole has a 14 gauge steel
support plate that is riveted to the inside of the lid to strengthen the hood corners. Do not remove or
relocate these plates.
6. Raise the hood into position using high lifts or equipment jacks at each end of the hood to ensure the
hoodislevel.Whenthehoodiselevatedtotheproperheight,install1/2-13threadedrodbetween
thehoodsupportplatesandthemodiedsupportsintheceiling.
7. Makenaladjustmentsasneededtoensurethatthehoodislevel.Maintaintensiononalltherods
to ensure hood weight is evenly distributed.

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INSTALLATION continued
DISCHARGE DIRECTION MODIFICATION
Theunitcomesconguredforafrontdischarge,changingittoatopdischargecanbeaccomplishedby
following these instructions. The unit comes with the Vertical Discharged Adapter Assembly & Close-
Off Adapter Bracket, these parts can be re-aquiired
bypurchasingpnN1-WL0645fromanyauthorized
Well Servicer or directly from Lang by
calling [phone].
Before attempting to perform any maintenance
ormodications:readinstructionsthoroughly&
disconnect ventilator from power source.
1. Remove blower access panel
2. Disconnectclearexibletubefromtheblower
pressuretap.Removeexibledistributiontube
fromthetankandcompressiontting.(See
illustration #2)
3. First, remove the 2 screws securing the blower
discharge bracket.
4. Remove 2 of the blower mounting bolts. Support
theblowerbeforeremovingthe3rdandnalbolt.
5. Rest blower on deck panel while locating the
vertical discharge adapter assembly.
6. Rotatetheblower90deg.Clockwiseuntilthe
discharge is in the vertical position. (See Fig. 4)
7. Locate vertical mounting hole locations on the
blower panel and secure blower using previously
removed mounting bolts.
IL2869
BLOWER TUBE CONNECTION
BLOWER ACCESS PANEL
FLEXIBLE DISTRIBUTION HOSE
IL2851
BLOWER MOUNTING
BOLT LOCATIONS
BLOWER DISCHARGE
BRACKET SCREWS
VERTICAL MOUNTING
HOLE LOCATIONS
FIG #3
FIG #4
Vertical Discharge
Adapter
Adapter Bracket
Close-Off
IL2853

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INSTALLATION
8. Install the vertical adapter at the
discharge of the blower.
9. Secure adapter bracket use (6)
8-32 screws. (Not provided)
10.Removetheredamperfromthe
horizontal discharge and install it
into the vertical discharge adapter
assembly. See Fig 5
11.Reconnectdischargeextubingand
blower pressure switch tube. Verify that
tubing is secure and tight.
12. Install adapter bracket close-off
part#NI-Z18760. See Fig 5
13. Replace blower access panel
14. Reconnect power supply and verify unit
operation.
SLIDE BRACKET OVER
BLOWER DISCHARGE,
SECURE WITH 8-32 SCREWS
INSERT FIRE DAMPER
INTO THE VERTICAL
ADAPTER ASSEMBLY
STEP 10 - INSTALL FIRE DAMPER
INTO BLOWER ADAPTER
STEP 12 - SECURE ADAPTER BRACKET
CLOSE-OFF WITH 8/32 SCREWS (7)
IL2852
FIG #5

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12
ELECTRICAL INSTALLATION
Refer to the nameplate on the ventilator. Verify ELECTRICAL
SERVICE POWER. Voltage and phase must match the nameplate
specications,andavailableelectricalserviceamperagemustmeetor
exceedthelistedamperage.Refertospecicationslistedonpage1of
this manual.
The ground lug of this ventilator must be connected to a suitable
building ground.
Open the front control panel to access the cooking appliance contactor
and builign alarm relay. Wire the cooking appliance control circuit to
theterminalblockperthegurebelow.
NOTE: It is the responsibility of the electrical contractor to provide
suitablewiring,exibleorrigidconduit,andanappropriatestrainrelief.
Electrical Connection
NOTE:Thehoodrequresasinglephase(1ph),208or240volt,20
amp suppy. When connecting line voltage to the unit’s terminal block,
use a minimum of #12 gage copper wire only, suitable for 167°F (76°C)
ambient temperature.
Appliance Connections
All under hood appliances are required to be interlocked with the hood’s
equipment cut-off circuit, through a customer supplied contactor. This
contactormustbeaULlisted,denitepurposeACresistiveairheatingtype,
suitable for the appliance load. Installation and connections shall be in
accordancewiththeNationalElectricCodeNFPA70.Theseconnections
provide an automatic shutdown of the appliance when the hood is OFF, or in
theeventofamalfunctionorappliancere.
Equipment Cutoff Connections
Opt 1: UseTB#3&TB#4for208or240voltcontrolcircuit.Thesecontactswillbe
de-energized when the hood is OFF or in the event of a malfunction
Opt 2: Use TB#5 & TB#6 as a Normally Closed SPST relay connection for equipment
controlcircuitswithvoltagesotherthan208or240AC.Thesecontactswillbe
open when hood is OFF or in the event of a malfunction.
INSTALLATION
DANGER:
SUFFOCATION HAZARD
Do not attempt to use this
ventilatorwithgas-redunits.
This ventilator will not remove
products of combustion.
Unvented exhaust gasses
can be deadly.
WARNING
SHOCK HAZARD
Electrical connections must
be made by a licensed
electrician.
CAUTION:
FIRE HAZARD
HEALTH HAZARD
All cooking appliance must
be connected to the cooking
appliance contactor, the
control circuit of which is
controlled by the ventilator.
Failure to control cooking
appliances will provide no
protection in the event of a
re,norwillcookingvapors
and odors be contained in
the event of ventilator hood
TB1 TB6 TB7 TB8 TB2 TB3 TB4 TB5
LINE INPUT
208-240VAC
50/60HZ
BUILDING
ALARM
INTERFACE
TO CUSTOMER
SUPPLIED
SWITCHING
DEVICE (SPST)
OPTION 2
TO CUSTOMER
SUPPLIED APPLIANCE
CONTACTOR
(240V CNTR CIRCUIT)
OPTION 1
L1 L2
IL2376a
TB3
TB4
208/240V
APPLIANCE
CONTROL
EQUIPMENT
CUTOFF
TERMINALS
CUSTOMER
SUPPLIED
CONTACTOR(S)
TO APPLIANCE
OVER CURRENT
PROTECTED
SUPPLY
EQUIPMENT INTERFACE OPTION 1
SPST
SWITCHED
EQUIPMENT
CUTOFF
TERMINALS
TB5
TB6
CUSTOMER
SUPPLIED
CONTACTOR(S)
CUSTOMER
SUPPLIED
SOURCE CIRCUIT
TO APPLIANCE
OVER CURRENT
PROTECTED
SUPPLY
L3
T3
EQUIPMENT INTERFACE OPTION 2

p/n 2M-W2029 OpM LVC- Ventless Universal Hood
13
INSTALLATION continued
ThealarmrelayisactivatedbytheAnsul®redetectionsystem.Ifthe
installation includes a building alarm system, connect to terminals T7 &
T8 of the terminal block in supply connection box. These terminals are
conguredfromthefactoryfornormallyopenoperation.
The ventilator will operate properly, and the appliance control relay will
be energized, only when:
1. The VENTILATOR POWER SWITCH is “ON”.
2. The Ansul® Fire Suppression System is charged and armed.
3. Allltersareinpositionandserviceable,andtheventilatorairow
systemissatised.
FIRE SUPPRESSION SYSTEM INSTALLATION
THE FIRE SUPPRESSION SYSTEM is comprised of one container
ofAnsulex®LowpHliquidresuppressionmediaandasystem
pressurization canister, plus associated plumbing. Actuation controls are
contained in the Automan enclosure.
ThehoodisnotsuppliedwithaeldinstalledMANUALPULLSTATION,
which must be set-up at the time of installation by an authorized Ansul®
distributor.
The MANUAL PULL STATION allows for for manual emergency
shutdownofcookingappliancepower,andactuationofthere
suppression system.
Three(3)NOZZLESdispersetheresuppressionmedia.Thesenozzles
protect the fan and plenum.
If the ventilator is situated such that the supplied manual pull
station cannot be installed or is not readily accessible, a REMOTE
MANUAL PULL STATION may be required by local codes. Any
such remote manual pull station must be installed by an authorized
Ansul® distributor in accordance with the AUTHORITY HAVING
JURISDICTION.
Theredetectionsystemutilizesoneelectronicthermaldetectorwithan
actuation set point of 275°F (135°C).
The signaling from the detection devices will automatically discharge
theresuppressionmediathroughallnozzles,disablethecooking
appliances and cause the alarm to sound.
Fire supression media will form an emulsion designed to both smother
andcoolthefuelsin/onthecookingappliance.
DANGER
FIRE HAZARD
Fire suppression system
mustbechargedandcertied
by an authorized Ansul®
distributor.
DO NOT attempt to modify or
bypasstheresuppression
system.
Anuncontrolledrecan
cause serious injury or death.
NOTE:
Iftheresuppressionsystem
is discharged, a buzzer will
sound continuously. The unit
will remain inoperable until
theresuppressionsystemis
serviced, recharged and reset
by an authorized Ansul®
distributor.
Charging of the Ansul®
Fire Suppression system
must be in accordance with
Ansul® Design, Installation,
Recharge and Maintenance
Manual,#418087.
NOTE:
If a REMOTE MANUAL PULL
STATION is installed, moving
the ventilator for any reason
may cause the Ansul®
system to discharge.
IMPORTANT:
Shouldtheresuppression
system discharge: all nozzles
must be replaced, and all
lines thoroughly cleaned,
prior to recharging the
system.
Residualresuppression
media may compromise the
owanddispersionofre
suppression media in any
subsequent activation.

p/n 2M-W2029 OpM LVC- Ventless Universal Hood
14
INSTALLATION continued
DANGER
BURN HAZARD
Any additional remote pull
station must NOT be installed
on the front of the cooking
appliances,
Dischargeofthere
extinguishing system into hot
grease or oil may cause hot
foam to spill over from the
cooking surface or frypot.
Serious burns and other injuries
can result from contact with hot
oil and from slipping in spilled
oil.
The manual pull station is
installed on the right side
(facing the unit. It may,
however, be relocated to the left
side of the ventilator hood by an
authorized Ansul® agent.
FIRE SUPPRESSION SYSTEM INSTALLATION (continued)
The MANUAL PULL STATION and any similar REMOTE MANUAL
PULLSTATIONwillactivatetheresuppressionsystemwhenthe
ring on the pull station is pulled to its full extent.
TB9 TB14 TB10 TB11 TB12 TB13
OPENTO CUSTOMER
ANSUL ELECTRIC
SWITCHING DEVICE
TO CUSTOMER
SUPPLIED U.L. LISTED
RELEASING CONTROL
UNIT (120V RATED)
N.C. COM N.O.
SUPPLIED U.L. LISTED
DETECTION AND ACTIVATION CONNECTIONS
MODEL WVC-46X (ONLY)
IL2854

p/n 2M-W2029 OpM LVC- Ventless Universal Hood
15
INSTALLATION
NOTE:
The BAFFLE FILTERS,
PRE-FILTERS and FILTER
PACK actuate position
switches when they are
properly positioned. They
must be properly installed
for the under hood cooking
appliance contactor to be
energized.
WARNING
SLIP AND FALL
HAZARD
DO NOT operate any
grease-producing cooking
appliance unless the grease
cup is properly installed. Oil
willdripontooorcreatinga
slipping hazard.
CAUTION
BURN HAZARD
DO NOT operate any cooking
appliance unless the grease
cup is installed.
Moisture dripping onto hot
surfaces, oil or grease can
cause splattering.
FILTER INSTALLATION
 Noteairowdirectionarrowonlterpack.Removeoldlterpack
andslidenewlterpackfullyintotheappropriateslot.Verifythat
theairowarrowpointstowardthefan.
Thebaffelterisreusableandshouldbecleanedatleastweekly.
Changethepre-lterandHepalterpackasindicatedonthefront
panel.Theseltersaredisposableandcannotbereusable.Alllters
are accessible throught the front service door.
UseonlygenuineLangreplacementpartsandlters,
call [phone] or your authorized Lang service agent. Parts
supplied by others will void your warranty and may not provide safe
operation.
BAFFLE FILTER and GREASE CUP INSTALLATION
1. Installbafelterfromfront.Engagethebafelterintheretainer
slot.Pushupuntilthebafelterbottomclearsthelowerlipofthe
retainer,thenlowerthebafelterintothebottomretainer
2. InstallGREASECUPintobracketsbelowthebafelter.
Note: Failure to install the GREASE CUP will allow grease and
moisture from the BAFFLE FILTER to drop into hot cooking surfaces,
creating both a SAFETY HAZARD (hot oil splatter).
Air Exhaust
23.3”
30”
BAFFLE
FILTER
PRE-FILTER
HEPA FILTER
GREASE
CUP IL2637a

p/n 2M-W2029 OpM LVC- Ventless Universal Hood
16
OPERATION
Control Panel
NOTE: Cooking appliances must
be operated in accordance with the
manufacturer’s instructions.
During normal operation, the illuminated
power switch will be the only light on the
control panel that will be ON.
If the CHECK FILTERS light illuminates,
check BAFFLE FILTERS, PREFILTERS,
and the HEPA AIR FILTERS for proper
installation.
If the REPLACE PRE-FILTERS light
illuminates..ReplacethePre-lters.
If the REPLACE FILTER light
illuminates, replace the FILTER PACK.
NOTE: the REPLACE FILTERS light is
awarningthatlterpackisnearingthe
end of its service life. The ventilator will
continue to operate for a period of time
after the REPLACE FILTER LIGHT turns
ON to allow continued operation through
apeakperiod.However,lterpackmust
be replaced within a short time period or
it will clog, disabling the ventilator and
appliances.
If the SERVICE REQUIRED light
illuminates,thelterpackisrestrictedto
thepointofinsufcientairowforproper
operation and the Ventilator will shut
downuntiltheunderlyingcloggedltersituationhasbeencorrected.
Replacecloggeditemwithafreshltertocorrectthecondition.
Reset the unit by turning VENTILATOR POWER SWITCH to OFF,
then back to ON.
A failure of incoming electric power will cause a shut down of the unit.
Reset the unit by turning VENTILATOR POWER SWITCH to OFF, then
back to ON.
Operation Lights
There are two equipment lights that provide illumination of the working
area. These lights are controllled by the main power switch.
CAUTION:
HOT SURFACE
Exposed surfaces can be hot
to the touch and may cause
burns.
CAUTION:
SHOCK HAZARD
DO NOT splash or pour water
or grease onto control panel
or wiring.
IMPORTANT:
The ventilator cannot operate
ifthelterpackisremovedor
clogged.
It is the responsibility of
the store management to
maintainsufcientspares
oflterpackstoavoid
prolonged shutdown of the
ventilatorwhenthislteris
expended.
Filter packs cannot be
cleaned.
Lang Manufacturing assumes
no liability for loss of business
duetolterrelatedshutdown.
Filters that are not genuine
Lang Replacement Parts may
cause your unit to operate
incorrectly and you will risk
the possibility of voiding your
warranty.
SERVICE
REQUIRED
REPLACE
FILTER PACK
REPLACE
PREFILTER
CHECK
FILTER
ON
POWER
OFF
IL2870

p/n 2M-W2029 OpM LVC- Ventless Universal Hood
17
CLEANING INSTRUCTIONS
PRECAUTIONS: Disconnect unit from electric power and allow to cool
Cover frypot to prevent oil contamination
FREQUENCY: Weekly
TOOLS: Mild detergent, clean non-abrasive towels
NOTE: Ventilator section to be cleaned in conjunction with cooking
appliance. Refer to appliance user instructions for cleaning procedure.
1. TURN HOOD POWER SWITCH TO OFF.
Cover cooking appliance to prevent oil contamination.
2. Remove BAFFLE FILTERS and GREASE CUP(s).
3. Empty GREASE CUP(s) into an appropriate grease collection
receptacle.
4. Clean BAFFLE FILTERS and GREASE CUP(s) in a sink or dishwasher
using mild detergent and warm water.
5. Dry components with a clean non-abrasive cloth.
Reinstall BAFFLE FILTERS and GREASE CUP(s) in ventilator.
6. Wipe exterior of ventilator with a clean cloth moistened with warm
water and mild detergent. Rinse by wiping with a clean cloth
moistened with warm water.
7. Uncover the cooking appliance and reconnect unit to electric power.
Procedure is complete
CAUTION:
HOT SURFACE
Exposed surfaces can be hot
to the touch and may cause
burns. Allow unit to cool
before cleaning.
CAUTION:
SHOCK HAZARD
DO NOT splash or pour water
or grease onto control panel
or wiring.

p/n 2M-W2029 OpM LVC- Ventless Universal Hood
18
CLEANING INSTRUCTIONS
PRECAUTIONS: Disconnect unit from electric power and allow to cool
Cover cooking surfaces and frypots to prevent
contamination.
FREQUENCY: Monthly
TOOLS: Mild detergent, clean non-abrasive towels
NOTE: Ventilator section to be cleaned in conjunction with cooking
appliance. Refer to appliance user instructions for cleaning procedure.
1. TURN HOOD POWER SWITCH TO OFF.
Cover cooking applaince to prevent oil contamination.
2. Remove BAFFLE FILTERS, GREASE CUP(s), and all FILTER PACK(s).
3. Wipe interior of ventilator with a clean cloth moistened with warm water
and mild detergent. Rinse by wiping with a clean cloth moistened with
warm water. DO NOT clean by spraying.
4. Dry ventilator thoroughly with a clean non-abrasive cloth.
Reinstall all FILTERS, BAFFLE FILTERS, GREASE CUP(s).
5. Uncover the cooking appliance and reconnect unit to electric power.
Procedure is complete
CAUTION:
HOT SURFACE
Exposed surfaces can be hot
to the touch and may cause
burns. Allow unit to cool
before cleaning.
CAUTION:
SHOCK HAZARD
DO NOT splash or pour water
or grease onto control panel
or wiring.
IMPORTANT:
DO NOT wash FILTER
PACK.Washingtheselters
will clog them, and cause
installed cooking appliance
to be disabled.
IMPORTANT:
DO NOT clean interior of
ventilator by spraying.
Spraying can contaminate the
cooking appliance, and may
cause internal damage to the
ventilator blower, operation
proongsystemand/orre
suppression system.
Clean by wiping only.