Olsen ODV-B User manual

ODOD
ODOD
ODVV
VV
V-B-B
-B-B
-B
GAS FIRED BOILERS
FOR FORCED HOT WATER
ECR International Ltd. - Olsen Division •P.O. Box 900 •Wallaceburg, Ont. N8A5E5
VENTING ADDENDUMVENTING ADDENDUM VENTING ADDENDUMVENTING ADDENDUM
VENTING ADDENDUM

TT
TT
TABLE OF CONTENTSABLE OF CONTENTS
ABLE OF CONTENTSABLE OF CONTENTS
ABLE OF CONTENTS
HORIZONTAL PIPING ..................................................................................PAGES 1-10
WARNINGS............................................................................................... PAGE 1
INSTALLATION ....................................................................................PAGES 2-3
TYPICAL INSTALLATION ......................................................................... PAGE 4
FLEX-LPIPINGCOMPONENTS ............................................................... PAGE 5
HEATFABPIPINGCOMPONENTS........................................................... PAGE 6
Z-FLEXPIPINGCOMPONENTS ............................................................... PAGE 7
PROTECHPIPINGCOMPONENTS........................................................... PAGE 8
CONDENSATEDRAINS............................................................................ PAGE 9
LOCATINGTHEVENTTERMINATION................................................PAGES 9-10
VERTICAL VENT PIPING...........................................................................PAGES 11-18
INSTALLATION .................................................................................. PAGE 11-16
B VENT SINGLE APPLIANCE................................................................ PAGE 16
B VENT DUAL APPLIANCE ................................................................... PAGE 17
CATEGORY I VENT INSTALLATION....................................................... PAGE 18

PAGE 1
HORIZONTHORIZONT
HORIZONTHORIZONT
HORIZONTALAL
ALAL
AL VENT PIPE INSTVENT PIPE INST
VENT PIPE INSTVENT PIPE INST
VENT PIPE INSTALLAALLA
ALLAALLA
ALLATION INSTRTION INSTR
TION INSTRTION INSTR
TION INSTRUCTIONSUCTIONS
UCTIONSUCTIONS
UCTIONS
(Through the wall)
THIS BOILER IS DESIGN CERTIFIED FOR USE WITH THE FOLLOWING VENTING
SYSTEMS.
COMPANY HEAT-FAB ®®
®®
®FLEX-L®®
®®
®Z-FLEX®®
®®
®ProTech®®
®®
®
PRODUCT SAF-T-VENT™STAR-34™Z-VENT™FasNSeal™
CAUTION:CAUTION:
CAUTION:CAUTION:
CAUTION: THE ABOVE VENT PIPE AND FITTINGS ARE USED FOR
VENTING GAS BURNING CATEGORY III AND IV APPLIANCES. DO NOT USE THIS
VENT PIPE OR FITTINGS FOR VENTING APPLIANCES BURNING FUELS SUCH AS
WOOD, OIL, KEROSENE OR COAL.
CAUTION:CAUTION:
CAUTION:CAUTION:
CAUTION: DONOTUSETHISVENTPIPEANDFITTINGSFORVENTING
INCINERATORS OF ANY KIND.
WARNINGS:WARNINGS:
WARNINGS:WARNINGS:
WARNINGS:
1. FOR CORRECT INSTALLATION OF VENT SYSTEM, READ ALL OF THESE
INSTRUCTIONSANDREFERTOTHEVENTPIPEMANUFACTURER'SINSTRUCTIONS.
2. FAILURETOUSETHISVENTINGSYSTEMWILLVOIDTHEMANUFACTURER’S
WARRANTYANDMAYRESULTINRAPIDDETERIORATIONOFTHEVENTINGSYSTEM,
APOTENTIALHEALTHHAZARD.
3. FAULTY VENT INSTALLATION CAN ALLOW TOXIC FUMES TO BE RELEASED
INTO LIVING AREAS. THIS MAY CAUSE SERIOUS BODILY INJURY OR PROPERTY
DAMAGE.VENTPERFORMANCEMAYALSOBEAFFECTEDBYIMPROPERASSEMBLY.
4. INSTALL SEPARATE VENTS FOR FORCED EXHAUST APPLIANCES AND
NATURALDRAFTAPPLIANCES.ACOMMONVENTBETWEENNATURALDRAFTAND
FORCEDEXHAUSTAPPLIANCESMAYCAUSETOXICGASESTOEXHAUSTTHROUGH
THE NATURAL DRAFT APPLIANCE RATHER THAN TO OUTSIDE AIR. BREATHING
EXHAUST GASES WILL CAUSE SERIOUS PERSONAL INJURY OR DEATH.
WARNING:WARNING:
WARNING:WARNING:
WARNING: ALL INSTALLATIONS OF BOILERS ANDALL INSTALLATIONS OF BOILERS AND
ALL INSTALLATIONS OF BOILERS ANDALL INSTALLATIONS OF BOILERS AND
ALL INSTALLATIONS OF BOILERS AND
VENTING SHOULD BE DONE ONLY BY A QUALIFIED EXPERT ANDVENTING SHOULD BE DONE ONLY BY A QUALIFIED EXPERT AND
VENTING SHOULD BE DONE ONLY BY A QUALIFIED EXPERT ANDVENTING SHOULD BE DONE ONLY BY A QUALIFIED EXPERT AND
VENTING SHOULD BE DONE ONLY BY A QUALIFIED EXPERT AND
IN ACCORDANCE WITH THE APPROPRIATE OLSEN MANUAL.IN ACCORDANCE WITH THE APPROPRIATE OLSEN MANUAL.
IN ACCORDANCE WITH THE APPROPRIATE OLSEN MANUAL.IN ACCORDANCE WITH THE APPROPRIATE OLSEN MANUAL.
IN ACCORDANCE WITH THE APPROPRIATE OLSEN MANUAL.
INSTALLING OR VENTING A BOILER OR ANY OTHER GASINSTALLING OR VENTING A BOILER OR ANY OTHER GAS
INSTALLING OR VENTING A BOILER OR ANY OTHER GASINSTALLING OR VENTING A BOILER OR ANY OTHER GAS
INSTALLING OR VENTING A BOILER OR ANY OTHER GAS
APPLIANCE WITH IMPROPER METHODS OR MATERIALS MAYAPPLIANCE WITH IMPROPER METHODS OR MATERIALS MAY
APPLIANCE WITH IMPROPER METHODS OR MATERIALS MAYAPPLIANCE WITH IMPROPER METHODS OR MATERIALS MAY
APPLIANCE WITH IMPROPER METHODS OR MATERIALS MAY
RESULT IN SERIOUS INJURY OR DEATH DUE TO FIRE OR TORESULT IN SERIOUS INJURY OR DEATH DUE TO FIRE OR TO
RESULT IN SERIOUS INJURY OR DEATH DUE TO FIRE OR TORESULT IN SERIOUS INJURY OR DEATH DUE TO FIRE OR TO
RESULT IN SERIOUS INJURY OR DEATH DUE TO FIRE OR TO
ASPHYXIATION FROM POISONOUS GASES SUCH AS CARBONASPHYXIATION FROM POISONOUS GASES SUCH AS CARBON
ASPHYXIATION FROM POISONOUS GASES SUCH AS CARBONASPHYXIATION FROM POISONOUS GASES SUCH AS CARBON
ASPHYXIATION FROM POISONOUS GASES SUCH AS CARBON
MONOXIDE WHICH IS ODORLESS AND INVISIBLE.MONOXIDE WHICH IS ODORLESS AND INVISIBLE.
MONOXIDE WHICH IS ODORLESS AND INVISIBLE.MONOXIDE WHICH IS ODORLESS AND INVISIBLE.
MONOXIDE WHICH IS ODORLESS AND INVISIBLE.

PAGE 2
HORIZONTAL VENT INSTALLATION:HORIZONTAL VENT INSTALLATION:
HORIZONTAL VENT INSTALLATION:HORIZONTAL VENT INSTALLATION:
HORIZONTAL VENT INSTALLATION:
A. Theboilerscoveredinthis sectionaredesign-certifiedas CATEGORY3for venting,
only when they are installed with manufacturer specified vent system components and
installation practices.
B. Install vent pipe beginning at the vent connector and work toward the vent cap.
C. Vent pipe and fittings MUST NOT be routed into, through, or within any other vent,
suchasanexisting masonry chimney or factorybuiltchimney.(Recommended installation
is shown in figure 1 page 3, unacceptable installation is shown in figure 2 page 3).
D.Vent pipe lengths. Themaximumlength is thecombinedlength of straight horizontal
andverticalruns,andtheequivalentstraightlengthoffittings.Therequiredlengthsforeach
boiler are as follows: VENT PIPE LENGTHS
Vent Pipe VENTLENGTHS EQUIV.
Model Dia. Maximum Minimum feet per fitting
ODV50/100 3" 30' W/
Condensate 2' W/1 5'
Tee & 2 Elbows Elbow
ODV125 3" 25' W/1 2' W/1 5'
Elbow Elbow
ODV150/200 4" 30' W/1 2' W/1 5'
Elbow Elbow
Example: 20 feet of vent pipe w/1 elbow is Equivalent to 15 feet of vent pipe w/2
elbows. Note, condensate trap is not required on models ODV150 thru 200.
E. The vent pipe should slope upward from the boiler at least 1 inch for every 4 feet.
F. Noportionoftheventpipeshouldhavedipsorsagswherecondensatecouldcollect,
see figure 3 on page 3 for a typical vent system.
G. Rigidly support vent pipe every 5 feet and at the elbows. Plumbers straps may be
used.
H. Clearances and enclosures. ALL vent pipe and fittings must be installed with
appropriate air space clearances to combustibles. These air space clearances apply to
indoor or outdoor vents, whether they are open, enclosed, horizontal or vertical or pass
throughfloors,walls,roofs,orframedspaces.Theappropriateairspaceclearancesshould
be observed to joists, studs, subfloors, plywood, drywall, or plaster enclosures, insulated
sheathing, rafters, roofing, and any other combustible material. The minimum air space
clearance also applies to electrical wires and any kind of building insulation.
WARNING:WARNING:
WARNING:WARNING:
WARNING: DONOTINSULATEOROTHERWISEWRAPVENTPIPEOR
FITTINGS.
For Horizontal runsFor Horizontal runs
For Horizontal runsFor Horizontal runs
For Horizontal runs maintaina minimum air space clearance of6 inches for 3inch and
4inchventpipetoanycombustiblematerial,electricwires,andbuildingmaterials.

PAGE 3
FIGURE1b FIGURE 2
FIGURE 3
FIGURE1a

PAGE 4
FIGURE4
TYPICAL INSTTYPICAL INST
TYPICAL INSTTYPICAL INST
TYPICAL INSTALLAALLA
ALLAALLA
ALLATIONTION
TIONTION
TION
Notes:
*1 : A condensate tee/drain is only needed when horizontal vent lengths exceed
10 feet.
*2: Insert vent pipe in boiler venter outlet (vent adapter), apply silicone completely
around edge of outlet and tighten clamp.

Flex-L®Star-34™Vent Pipe Components
Notes:
*1 : A condensate tee/drain is only needed when horizontal vent lengths exceed
10 feet.
*2: Insert vent pipe in boiler venter outlet (vent adapter), apply silicone completely
around edge of outlet and tighten clamp.
PAGE 5
FIGURE5

Heat Fab®Saf-T Vent™Vent Pipe Components
PAGE 6
FIGURE6
Notes:
*1 : A condensate tee/drain is only needed when horizontal vent lengths exceed
10 feet.
*2: Insert vent pipe in boiler venter outlet (vent adapter), apply silicone completely
around edge of outlet and tighten clamp.

PAGE 7
FIGURE7
Z-Flex®Z-Vent™Vent Pipe Components
Notes:
*1 : A condensate tee/drain is only needed when horizontal vent lengths
exceed 10 feet.
*2 : Insert vent pipe in boiler venter outlet (vent adapter), apply silicone
completely around edge of outlet and tighten clamp.

PAGE 8
FIGURE8
ProTech®FasNSeal™Vent Pipe Components
Notes:
*1 : A condensate tee/drain is only needed when horizontal vent lengths
exceed 10 feet.
*2 : Insert vent pipe in boiler venter outlet (vent adapter), apply silicone
completely around edge of outlet and tighten clamp.

PAGE 9
LL
LL
LOCAOCA
OCAOCA
OCATINGTING
TINGTING
TING THETHE
THETHE
THE VENTVENT
VENTVENT
VENT TERMINTERMIN
TERMINTERMIN
TERMINAA
AA
ATIONTION
TIONTION
TION
A. At least 12 inches above finished grade, or at least 12 inches above the normally
expected snow accumulation level in geographical areas where snow accumulates.
B. 4 feet away from and not above any doors or windows.
C. At least 3 feet above any forced air inlet located within 6 feet horizontally.
D. At least 6 feet from a combustion air intake of another appliance.
E. Atleast4feethorizontallyfromelectricmeters,gasmeters,regulatorsandreliefequipment.
F. Donotlocatetheventterminationintrafficareaslikewalkways,unlessitisatleast7feet
abovefinishedgrade.
G. Donotlocatetheventterminationtooclosetoshrubberyasflueproductsmaystuntorkillthem.
H. Some building materials may be affected by flue products expelled near unprotected
surfaces. Sealing or shielding of exposed surfaces with a corrosion resistant material
(such as aluminum sheet) may be required to prevent staining or deterioration.
I. Wheninstallingventcapsecureittoanoncombustiblewalloracombustiblewallthimble.
Refertoventpipemanufacturersinstructions.
J. Seethelatestrevisionof theNFGC,ANSIZ223.1.WheninstalledinCanada:Thelatest
revision of the CAN/CSA - B149 Natural Gas and Propane Installtion Code.
FIGURE9
CONDENSATE DRAINSCONDENSATE DRAINS
CONDENSATE DRAINSCONDENSATE DRAINS
CONDENSATE DRAINS
(Note: A condensate drain is not required on models ODV150 thru 200)
WARNING:WARNING:
WARNING:WARNING:
WARNING: DO NOT PLACE CONDENSATE DRAIN WHERE FREEZING
MAY OCCUR.
CONDENSATE DRAINS ARE REQUIRED IN THE VENT WHEN USING THE
CONDENSATE TEE. THE CONDENSATE DRAIN FITTING MUST BE PLUMBED TO A
SANITARY DRAIN FOR LIQUID CONDENSATE DISPOSAL.
Refertofigure9belowforthefollowinginstructions.
Condensate drain is plumbed with 3/8" (1 cm) inside diameter flexible tubing. Refer to
"GENERAL INSTRUCTION FOR SEASONAL STARTUP AND MAINTENANCE", in the
Installation Manual for maintenance
recommendations and schedule.
1. Flexible Tubing Condensate Drain.
Inthevent,andclosetotheappliance,install
a tee with a run outlet. Install condensate
draininthedownoutletwithhightemperature
adhesive. Connect the condensate drain
outlettocommerciallyavailableflexibletubing
(minimum length 40"). Below the drain
outlet, make a 6" diameter loop in 3/8" ID
tubing,ora9"diameterloopin5/8"IDtubing.
Securetheloop with a plastic cabletie. Run
the other end of the flexible tubing to a
sanitary drain. (Use a condensate pump if
necessary)

PAGE 10
FIGURE10
NOTE: IF THERE IS A POTENTIAL FOR EXCESSIVE WINDS, SPECIAL CONSIDERATION SHOULD BE GIVEN TO LOCATE THE VENT TERMINATIONAWAY FROM THE WINDWARD SIDE OF THE BUILDING.

PAGE 11
VERVER
VERVER
VERTICALTICAL
TICALTICAL
TICAL VENT PIPE INSTVENT PIPE INST
VENT PIPE INSTVENT PIPE INST
VENT PIPE INSTALLAALLA
ALLAALLA
ALLATIONTION
TIONTION
TION
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONS
(PROVIDING FOR PROPER VENTING THROUGH THE ROOF)
VentboilermakingreferencetothelatestrevisionofNFGC,ANSIZ223-1(wheninstalled
inCanada:refertotheCAN/CSA-B149NaturalGasandPropaneInstallationCode)using
theseinstructionsandtherequirementsofthelocalutilitiesandotherlocalcodeauthorities.
Youmustconnectboilertoaventorfactory-builtchimney.Ventorfactory-builtchimneymust
meet a recognized standard. Chimney lining method and material must comply with local
coderequirements.Usecorrosion-resistantmaterialmeetingnationallyrecognizedstandards
for vent construction.
WARNING:WARNING:
WARNING:WARNING:
WARNING: Inadequate vent or chimney could allow combustion products
to collect in structure, resulting in injury or death.
WARNING:WARNING:
WARNING:WARNING:
WARNING: Ventthisboilerseparatelyfromanyappliancedesignedtoburn
solidfuel,particularlywoodburningorcoalburningappliances.Improperventingcouldallow
combustion products to collect in the structure, resulting in injury or death.
A. VENTING CATEGORY
The boilers covered by this manual are design-certified as CATEGORY 1 for venting.
CATEGORY 1 Appliances have non-positive vent static pressure and rely on the heat
content of combustion products to vent. You may common vent CATEGORY 1 boilers.
The boilers covered by this manual are also design certified as CATEGORY 3 for
venting,onlywhentheyinstalledwithmanufacturerspecifiedventsystemcomponentsand
installedpractices.(Ref.pages1-10forcategory3ventinginstructions)
B. DESIGN CONSIDERATIONS
1.Avoidoversizingboilerforyourapplication.Selectaboilermodelwitharatedheating
output close to the calculated heating load. This extends the firing period, decreasing the
potentialforcondensateformationinthevent.
2.Toosmallaventcannotcarryallcombustionproductsoutdoors.Toolargeaventwill
not vent combustion products rapidly enough to avoid potential for condensation. Refer to
pages15thru18 forcorrectvent size.
3.Ventheightmustbeaminimumofsixfeet.Minimizeventconnectorhorizontalruns
totheextentpossibleforbestperformance.
4.Thedesignermustconsiderthebuilding’sorientation,answeringthesequestions.
(Ref.pages 13-15)
A.Willtheventterminateoutsidethebuildingwhereitsoperationcouldbe
adversely affected by winds?
B.Couldanyadjacentbuildingsadverselyaffectventoperation?
C.Allowingforthesefactorscanreducethepossibilityofdowndraft
conditions.
5. If your local experience indicates possible condensation problems, provide for
draininganddisposalofventingsystemcondensate.
C. VENT SIZING
1.Sometimesthehorizontaldistancefromtheboilertotheventorchimneyisalready

PAGE 12
given;thisisknownasthehorizontalventconnectorrun.Theventorchimneyheightisalso
usually given as the Btuh input of the gas appliances served by the vent.
Checktheseparameterstobesuretheventingsystemwillwork.Useapprovedengineering
practicesand part 7 &10 of the latest revision of the (NFGC)National Fuel Gas Code,
ANSIZ223.1/NFPA54.WheninstalledinCanada:ThelatestrevisionoftheCAN/CSA-B149
Natural Gas and Propane Installation Code.
2.Usethisventingaddendumforsingleapplianceventingandmultipleappliance(common)
venting.Formultistoryinstallations,refertothe latestrevisionof theNationalFuelGasCode
ANSIZ223.1/NFPA54.WheninstalledinCanada:ThelatestrevisionoftheCAN/CSA-B149
Natural Gas and Propane Installation Code.
D. VENT CONNECTOR
1. Vent connectors must be made of noncombustible, corrosion resistant material
capable of withstanding vent gas temperatures. They must be thick enough to withstand
physical damage and be accessible for inspection, cleaning and replacement.
2. Use Type B 1 vent connector in or through attics, crawl spaces, or other cold areas.
Installthimblesthatmeetlocalcodeswhenventconnectorspassthroughwallsorpartitions
of combustible material.
3. Keep vent connectors as short as possible by locating boiler as close as practical to
vent or chimney. Avoid unnecessary turns or bends which create resistance to flow of vent
gases.Addinganelbowaddsresistance.Forexample,addinga6"90-degreeelbowwould
be the equivalent of adding 20 feet of horizontal 6" pipe. (45-degree elbows have lower
resistance than 90-degree elbows, and can work for most vent runs).
4.Ifyoujointwo ormorevent connectorsbeforetheyentertheverticalvent orchimney,
see figure17,on page17. Also refer to NFGC book, ANSI standards and NFPA book. In
Canada refer to the CAN/CSA - B149 Natural Gas and Propane Installation Code.
5.Donotconnectthisboilertoanyportionofaventsystemwhichoperatesunderpositive
pressure.PositivepressurewillresultwithCATEGORY3or4appliancesthatareconnected
to the vent.
6. Do not connect vent connector to a chimney flue serving a fireplace.
E. VERTICAL VENT OR CHIMNEY
1.Ventsandchimneys usually extend vertically withoffsetsnotexceeding45-degrees.
Considerventpiperunsmorethan45-degreesashorizontalruns.Includetheirlengthinthe
totalhorizontalrun.
2. Designer and installer must provide an appropriately sized common vent for all
appliancesconnectedtoit(Ref.tofigure17,onpage17or thelatestrevisionof theNFGC,
ANSIZ223.1.WheninstalledinCanada:ThelatestrevisionoftheCAN/CSA-B149Natural
Gas and Propane Installtion Code).
3. Connect this CATEGORY 1 boiler only to vent systems with other CATEGORY 1
appliances.

PAGE 13
WARNING:WARNING:
WARNING:WARNING:
WARNING: DonotconnectthisCATEGORY1boilertoaventsystemused
by a CATEGORY 3 and 4 appliance. Do not connect it to vents with mechanical draft
systemsoperating atpositivepressure.Improperventing could allowcombustionproducts
to collect in the structure during use, resulting in damage, injury or death.
F. CHIMNEY LINING
UseasuitablysizedType B1 vent liner or suitablecorrigatedliner.(SeeFigure11 below)
WARNING:WARNING:
WARNING:WARNING:
WARNING: Support vent liner in a masonry chimney. Maintain at least 1"
clearance on all sides to reduce the possibility of condensate in vent. Condensate may
cause vent to deteriorate allowing combustion products to collect in structure, which could
result in injury or death. See Figure 12 below.
WARNING:WARNING:
WARNING:WARNING:
WARNING: Ventliner mustnotblockopeningwhere other appliance'svent
connectors enter chimney. Blocked openings will cause combustion products to collect in
the structure, resulting in damage, injury or death.
WARNING:WARNING:
WARNING:WARNING:
WARNING: Do not use unlined masonry chimneys. These increase risk of
condensate formation, which may cause chimney to deteriorate, allowing combustion
products to collect in the structure, resulting in damage, injury or death.
G. VENT TERMINATION
FIGURE12
FIGURE11

PAGE 14
1.Terminateallverticalventswithalistedventcaporroofassemblyunlesslocalcodes
require otherwise. See vent cap or roof assembly manufacturer’s instructions. Locate vent
termination (vent cap or roof assembly) in an area without positive pressures or eddy
currents.Eddycurrentsoccurwhenairswirls
over roof peaks. They cause down-drafts
and adversely affect vent operation. See
Figure13atright. Someventterminationsor
capsprotectagainsteddycurrentsanddown-
drafts. Consult their manufacturer’s
instructions.Ventterminationsorcapsshould
usuallybeatleastthesamesizeasthevent.
Theymaybelargeriftheinstallationwarrants.
2. Vent systems must end at least five
feet above the highest gas appliance
connection. The vent pipe must extend at
least three feet above the point where it
passes through the roof. Vent termination
must be at least two feet higher than any
portion of building within ten feet horizontal
andventterminationmustbeatleasttwofeet
higher than roof peaks within ten feet horizontal. See figures 14 and 15 below. Some vent
capmanufacturersofferventcapsthatallowreducedclearances.Consulttheirinstructions.
WARNING:WARNING:
WARNING:WARNING:
WARNING: Failuretoproperlyterminateventchimneysystemscouldallow
combustionproductstocollectinthestructure,resultingininjuryordeath.
3.Terminateventingsystematleastthreefeetaboveanyforced-airbuildinginletwithinten
feet.Considerdoors,windowsandgravityairbuildinginlets.Locateventterminationatleast
four feet below, four horizontal feet from or one foot above any of these openings.
FIGURE13
FIGURE14 FIGURE15
TERMINATION 10'OR LESSFROM RIDGE TERMINATION MORETHAN10'FROM RIDGE

PAGE 15
HEIGHT
ROOF PITCH ABOVE ROOF
FLAT TO 7/12 1.0 FT.
OVER 7/12 TO 8/12 1.5 FT.
OVER 8/12 TO 9/12 2.0 FT.
OVER 9/12 TO 10/12 2.5 FT. BRACE TO ROOF
OVER 10/12 TO 11/12 3.3 FT. AT TOP
OVER 11/12 TO 12/12 4.0 FT.
OVER 12/12 TO 14/12 5.0 FT.
OVER 14/12 TO 16/12 6.0 FT. BRACE TO ROOF
OVER 16/12 TO 18/12 7.0 FT. AT TOP AND
OVER 18/12 TO 20/12 7.5 FT. MID POINT
OVER 20/12 TO 21/12 8.0 FT.
ROOF PITCH CHART
H.INSTALLATION
1. Vent Adaptor.
Attach vent adaptor at draft inducer collar. See figure 18 on page 18. Use Kit #
56111101 for ODV 50-125 and Kit # 56111102 for ODV 150-200, or equivalent.
WARNING:Make sure thatallventpipeand connectorsaresecuredbecause
unsecuredventpipeconnectionsmayloosen.Thiscanallowcombustionproductstocollect
in the structure, resulting in injury or death.
2. Vent Connector.
Install vent connectors without any dips or sags. Slope them upward from boiler at
least1/4"perfoot.Topreventsagging,ateachjointsupportventconnectorsandhorizontal
portions using hangers, straps or equivalent. Seal all connections where vent connectors
enter chimney. See Figure 11 on page 13.
3. Vertical Vent
Install vent materials following their listing terms, manufacturer’s instructions, these
instructions and local codes. A gas vent passing through a roof must extend through roof
flashing, jack or thimble. It must terminate above the roof surface.(Ref. Figure 14 & 15)
I. EXISTING VENT CONSIDERATIONS
MASONRYCHIMNEYSPREVIOUSLYUSEDFORVENTINGEQUIPMENTSHOULDBE
SUITABLY PER NFGC STANDARD. Also provide an accessible clean out per the latest
revisionoftheNFGC,ANSIZ223.1,ANDNFPA54.1.WheninstalledinCanada:Thelatest
revision of the CAN/CSA - B149 Natural Gas and Propane Installation Code.
1.INSPECTION OF VENTS
A. Make sure existing vent or chimney is the proper size and construction for
appliances that will use it. The best way to do this is to size as if it were a new installation.
Compare the existing vent to your calculations and make necessary corrections.

B.Examineventorchimneycleanoutstomakesuretheyremaintightlyclosedwhennot
in use. Make sure vent or chimney passageway is clear and free of obstructions. Look for
evidence of condensate or deterioration in vent or chimney. Either of these means an
inadequatevent.
C. If you find an inadequate vent or chimney, do not leave it as is. Repair or replace
it. A new vent must meet these instructions and the latest revision of the National Fuel Gas
Code ANSI Z223.1/NFPA54. In Canada CAN/CSA - B149.
PAGE 16
FIGURE16
VERVER
VERVER
VERTICALTICAL
TICALTICAL
TICAL VENTING INSTVENTING INST
VENTING INSTVENTING INST
VENTING INSTALLAALLA
ALLAALLA
ALLATION FOR (TYPE BTION FOR (TYPE B
TION FOR (TYPE BTION FOR (TYPE B
TION FOR (TYPE B VENT)*VENT)*
VENT)*VENT)*
VENT)*
MODEL D1 D2 D2
MIN MAX
ODV50 4" 4" 5"
ODV75 & 100 4" 4" 6"
ODV125 4" 4" 8"
ODV150 - 200 4" 5" 8"
*The information contained in this figure is only one of many possible vertical
venting configurations. Follow appropriate sections of NFGC for proper
venting practice for category 1 appliances.
NOTE: See below*

PAGE 17
FIGURE17
VERVER
VERVER
VERTICALTICAL
TICALTICAL
TICAL VENTING INSTVENTING INST
VENTING INSTVENTING INST
VENTING INSTALLAALLA
ALLAALLA
ALLATION FORTION FOR
TION FORTION FOR
TION FOR
(TYPE B(TYPE B
(TYPE B(TYPE B
(TYPE B VENT)VENT)
VENT)VENT)
VENT) W/ NW/ N
W/ NW/ N
W/ NAA
AA
ATURAL DRAFTTURAL DRAFT
TURAL DRAFTTURAL DRAFT
TURAL DRAFT
WW
WW
WAA
AA
ATER HEATER HEA
TER HEATER HEA
TER HEATER (40,000 BTU/HR)*TER (40,000 BTU/HR)*
TER (40,000 BTU/HR)*TER (40,000 BTU/HR)*
TER (40,000 BTU/HR)*
MODEL D1 D2 D2
MIN MAX
ODV50 4" 4" 4"
ODV75 & 100 4" 5" 6"
ODV125 & 150 4" 6" 8"
ODV175 & 200 4" 7" 8"
*The information contained in this figure is only one of many possible vertical
venting configurations. Follow appropriate sections of NFGC for proper
venting practice for category 1 appliances.
NOTE: See below*

37616301 PAGE 18 REV.5.1,March,2004
FIGURE18