Sears 9MPD125L20B1 - Manual (Page 46)

tical termination is preferred. Field supplied pipe and fittings are
required to complete the installation.
Figure 4S Kit Components
Kit Contents:
3" Rain Cap or 2" Rain Cap
3" Diameter SDR-26 Pipe, 19^2" Long or
4" Diameter SDR-26 Pipe, 37Vs" Long,
2" Diameter SDR-26 Pipe, 31^/s" Long or
2 V 2 " Diameter SDR-26 Pipe, 24" Long,
3" Y Concentric Fitting or 2" Y Concentric Fitting
Nominal 3" or 4" Día.
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Vertical & Horizontal Termination
1. Determine the pipe diameters required for the installation
from Table 13 and Table 14 and Figure 47.
2. Determine the best location for the termination kit. See
Figure 46 for vertical termination or Figure 46 and
Figure 50 for horizontal termination. Roof termination is
preferred since it is less susceptible to damage, has re­
duced intake contaminants and less visible vent vapor. For
side wall termination, consideration should be given to:
1 )
possible damage from the vapors to plants/shrubs, other
equipment and building materials,
2 ) possible damage to
the terminal from foreign objects, 3) wind effects that may
cause recirculation of flue products, debris or light snowand
4) visible vent vapor.
3. Cut one 5" diameter hole through the structure for the
NAHA001CV Kit or one 4" diameter hole for the
NAHA002CV Kit.
4. Dimension D may be lengthened to 60" max. or shortened
by cutting the pipes to 12" min. Dimension A will change ac­
cording to D dimension. (See Figure 47)
Figuro 47
Concentric Vent Dimensional
Drawing
EPVC
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Model A* B
c
D”
NAHA001CV 38'/g 3 W 2
21 7g
NAHA002CV 33% 2 3^7^ 16Vg
* = Dimension will change accordingly as dimension D is
lengthened or shortened.
” = Dimension D may be lengthened to 60" may also be
shortened by cutting the pipes provided in the kit to 12"
minimum
Table 13
Concentric Termination Kit
NAHA001CV & NAHA002CV Venting
Table for *9MPD Models
50,000, 75,000 & 80,000 Btuh Furnaces
NAHA002CV - 35' & (4) 90° elbows with 2" PVC pipe or
NAHA001CV - 65' & (4) 90° elbows with 3" PVC pipe
100,000 Btuh Furnace
NAHA001CV - 35' & (4) 90° elbows with 3" PVC pipe or
NAHA001CV - 65' & (4) 90° elbows with 3” PVC pipe &
Long Vent Kit (See Tech. Manual)
125,000 Btuh Furnace
NAHA001CV - 35' & (4) 90° elbows with 3” PVC pipe
1. Do not include the field supplied 45° elbow in the total elbow
count.
2. If more than four elbows are required, reduce the length of
both the inlet and the exhaust pipes five feet for each
additional elbow used.
3. Elbows are DWV long radius type for 2 ' and 3" vents.
NOTE: Feet of pipe is whichever pipe run is the longest, either
inlet or outlet side.
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