Nordyne M2RC-080 Installation Instructions Manual page 15

Upflow Furnace
Inlot -- Exhaust _\ I See Vent Table !
.(
I
= Seal/Cualk
* '_ __ _ : /_aroundpips
5/8"
I
I
Combustion
Air Inlet 7\ I
OtfsetwithExhau ! _
Pips for Adequate '
PVC or ABS ' -J
Neopren3e "_apl_nt_ r _ ' [
Straps or other suitable / at buildin
supports at minimum 5 foot intervals _ ! / g
; o=,= E ,ha°at Vent 1="
| Wall _ Y_._ MIn,
!
Exhaust Vent A/C Coil Normal Snow Level _
_,---- - "------ Box
' Flexible 3" x 2= reducer to adapt the 2" diameter
vent pips of furnace to the 3" diameter pipe of the vent
--Fuma_
Downflow Furnace
SealiCautk I <
Around Pipe
atSu.dth0 \\ I
\
Min, i
Normal Snow Level
See Vent Table 4
Straps or Other Suitable
Supports at Minimum of
5 fL intervals
Upward Pitch - 1/4" Per Foot •
Wall Outlet Exhaust Vent
First Support Should he as Close to
Fumace ConnecUon as Possible --
Exhauat Vent
/ Exhaust _lnlat
[ / // 5/8"
I i *
: Top View !
r r
Combustion Air In_'t
Offset with Exhaust
Pipe for Adequate
Dimensioi_al Clearance
PVC or
ASS pipe
3" diamat_
Neoprene Coupling"
and 2 Clamps
Rax{b • 3" x 2 reducer to adapt the 2" diameter
vent pipe of furnace to the 3" dLameter pipe of the vent
Figure 14. Horizontal Venting
* These neoprene couplings are field-supplied and can be used if the installation requires
breakable connections in the piping. Note that a maximum of two couplings per pipe are allowed.
instructions. Specifically, all minimum
distance requirements with respect to
termination of the vent piping listed below.
The following list is a summary of vent terminal
location requirements:
1. The termination must be 12 inches above
snow level or grade level whichever is
higher. See Figure 17 for alternate method
to achieve 12" above snow level.
2. The minimum distance for a direct vent (2-
pipe) installation) from any door,
(openable) window, or air gravity inlet is 1
ft. below, 1 It. horizontally, or 1 ft. above.
3. The vent termination shall be a minimum of
3 ft. above any forced air inlet within 10 ft.
4. The vent termination shall be located at
least 4 ft. horizontally from any electric
meter, gas meter, regulator and any relief
equipment. These distances apply ONLY
to U.S. installations. In Canada, the Ca-
nadian Fuel Gas Code takes precedence.
5. Avoid areas where condensate drainage
may cause problems by dropping on
planters or patios, etc. Also ensure that
exhaust gases will not impinge on win-
dows or building surfaces, which may be
compromised or damaged by condensa-
tion. Do not install the vent terminal such
that exhaust is directed into window wells,
stairwells, under decks or into alcoves or
similar recessed areas, and do not termi-
nate above any public walkways.
6. Select the point of wall penetration where
the minimum 1/4 inch per foot of slope up
can be maintained.
15