Specifications

30259-0-0212Page 18
DIRECT VENT COLINEAR VENT EXAMPLES
Note:Exhaustmustbea
minimumof3inchesabove
airintakeinlet.
Max Vent Run - 40 ft. Equivalent With Three (3) 90° Elbows
Special Note: The vent terminal 90° elbow and rst 90° elbow
off back of the fireplace, when within 6” (15.2 cm), do not con-
tribute to the overall vent length measurement. For each 45°
elbow installed in the horizontal run, the length of the hori-
zontal run MUST be reduced by 1.5 feet (45 cm). This does not
apply if the 45° elbows are installed on the vertical part of the
vent system. Reduce the length of the horizontal run 3 feet
(91.4 cm) for every 90° elbow.
6’
5’
10’
10’
SINGLE FLUE ADAPTER
MODEL PVVK-FC
CO-LINEAR DIRECT VENT ADAPTER
MODEL PVCA
FIRST 90
DOES NOT GET COUNTED
WHEN WITHIN 6” (15.2cm)
OFF BACK OF HEATER
° ELBOW
90° ELBOW
3 FEET
90° ELBOW
3 FEET
CO-LINEAR TRANSITION
MODEL PVCT
OPTIONAL
VERTICAL TERMINA
TION CAP
MODEL PVVTC
PTRAP
H = 5’ + 6’ = 11’
V = 10’+ 10’= 20’
(3) 90° = 9’
TOTAL= 40’
SIDE VIEW
3” MIN.
12” MIN.
FLAT ROOF
3” MIN.
12” MIN.
EXHAUST
AIR INTAKE
EXHAUST
AIR INTAKE
SLOPE
SLOPE
Figure 15
Calculation example of vent run maximum 40 feet
Figure15 displays atwo-pipeinstallation. Because thedistance
from the replace to the rst elbow is more than 6 inches, the
equivalentlengthallowancefortherst90°elbowmustbeadded
tothetotalventlength.Theequivalentlengthofthesecond90°
elbow also needs to be added to the total length. The third el-
bowalsoneedstobeincluded.TheequivalentlengthofthePTrap
doesnotneedto be added since it is the termination.The total
horizontalventlengthoftheuesystemis11feet,andthetotal
verticallengthis20feet.Thethree90°elbowsareequivalentto9
feet,bringingthetotalto40feet.
Note:Theexhaustmustbeaminimumof3inchesabovetheinlet
airpipe.Theuemustbeatleast12inchesfromtheroofline,and
itisrecommendedtobeatleast12inchesabovethemaximum
expectedsnowlevelasindicatedinFigures7,9,13,14,16and
20.
Note: Onhorizontalruns,aP.V.C.supportclampneedstobein-
stalledevery 3feet.Do notallow “sags”inhorizontal ventruns;
waterwillsettleinthepipe.
When installing a colinear horizontal, the minimum vent length
protrudingfromtheoutsidewallis6”(15.2cm)forairintakeand9”
for exhaust. See Figure 16.
Note:Horizontaldischarge90°elbowmustbepointeddownward.
SeeFigure16.Allhorizontalrunsrequireeithera1/4”perfootrise
toruncondensationbacktothefireplace,ora1/4”perfootdown-
wardslopetoruncondensationawayfromthefireplace.
Note:AllPVCventrunpipingcanbepurchasedatalocalhard-
warestore.Schedule40PVCpipeshouldbeusedandcemented.
PVCAHorizontalColinearDirectVentAdaptor,PVVTCCap,PV-
VK-CFA Flex Kit and PVVK-SH Horizontal VentAdaptor Kit are
availablefromEmpireComfortSystems,Inc.
In both vertical and horizontal colinear direct vent applications,
acolineartransitionplatemodelPVCTcanbeusedtominimize
clearancesbetweenintakeandexhaustpipes.
Forhorizontalcolineardirectventing,exhaustandintakeair,cap
pipeswith90ºelbows,pointeddownward.
Note:Iftransitionplate(modelPVCT)isused,themeasurement
forcentertocenterofthepipeswillbe2.5”.Ifthetransitionplate
(modelPVCT)isnotused,themeasurementforcentertocenter
ofthepipescanbe3”to24”maximum.
9” MIN.
MIN. 2”
6” MIN.
3” MIN.
12" MIN TO GRADE
(RECOMMENDED 12"MIN.
TO MAX EXPECT SNOW LEVEL)
Figure 16