ConcentricVentDimensional
Drawing
PVC,ntake,C, s 0
._ A
Model A* B C
381/8 3 41/2
33_/8 2 31/2
11/2"
NAHAOO1CV
NAHAOO2CV
25-22-03
D _*
211/8
16;/8
* = 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
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.
5.
Partially assemble the concentric vent termination kit.
Clean and cement the parts using the procedures for Join-
ing Pipe and Fittings section of the manual. A) Cement theY
Concentric fitting to the 4" diameter kit pipe. (See
Figure 33) B) Cement the 3" rain cap to the 21/2" diameter
kit part. (See Figure 33) NOTE: A field supplied stainless
steel screw may be used to secure the rain cap to the pipe
instead of cementing when field disassembly is desired for
cleaning (See Figure 33)
Concentric Termination Kit
NAHAOOICV & NAHAOO2CV Venting
Table for NDMP2 Models
50,000 & 80,000 Btuh Furnaces
NAHAOO2CV - 35' & (4) 90 ° elbows with 2" PVC pipe or
NAHAOOICV - 65' & (4) 90 ° elbows with 3" PVC pipe
75,000 Btuh Furnace
NAHAOO2CV - 20' & (2) 90 ° elbows with 2" PVC pipe or
NAHAOO2CV - 35' & (4) 90 ° elbows with 2" PVC pipe &
Long Vent Kit (See Tech. Manual) or
NAHAOOICV - 65' & (4) 90 ° elbows with 3" PVC pipe
100,000 Btuh Furnace
NAHAOOICV - 35' & (4) 90 ° elbows with 3" PVC pipe or
NAHAOOICV - 65' & (4) 90 ° elbows with 3" PVC pipe &
Long Vent Kit (See Tech. Manual)
125,000 Btuh Furnace
NAHAOOICV - 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,
If assembly needs to be extended to meet height or side wall thick-
ness requirement, the two pipes supplied in the kit may be re-
placed by using the same diameter solid, single (no coupling
connections) field supplied SDR-26 PVC (ASTM D2241) pipes.
Do not extend dimension D more than 60". (See Figure 32)
Do not use field supplied couplings to extend the pipes.
Airflow restriction will occur and the furnace pressure switch
may cause intermittent operation.
25-22-02
Rain Cap to Vent Pipe Assembly
Drill clearance hole in rain
capandp_t pipe.
Stainless steel screw
(Fieldsupplied)
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in death
or personal injury.
When using the alternate screw assembly method,
drill a clearance hole in the rain cap and a pilot hole
in the vent pipe for the screw size being used.
Failure to drill adequate holes may cause cracking
of the PVC components, allowing flue gases to be
recirculated.
44001 102102 E_
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