AMPW 400-1000L I&O Manual
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17. For multiple appliance installations with horizontal
wall terminals, maintain minimum 12 in. (300
mm) horizontal distance between adjacent
vent terminals. Maintaining greater spacing is
recommended to avoid frost damage to building
surfaces where vent terminations are placed.
18. For multiple appliance installations with vertical
roof terminals, maintain minimum 12 in. (300
mm) horizontal distance between adjacent vent
terminals.
D. Field Installation
1. A factory installed 4" PVC slip or 6" cast aluminum
ring provides a means for air intake connection.
2. A factory installed Polypropylene vent adapter
provides a means for vent connection.
3. Vent and combustion air intake pipe must be
supported to allow uniform flow of combustion
air and flue gas.
4. Plan venting system to avoid possible contact
with plumbing or electrical wires. Start at the vent
connector and work towards the vent termination.
5. Design the air intake system to allow 3/8” (9.5mm)
of thermal expansion per 10 ft. (3m) of CPVC/
PVC pipe. Runs of 20 ft. (6.1m) or longer that are
restrained at both ends must have an offset.
a. CPVC combustion air pipe joints must be cleaned
with primer and glued with cement. Follow all
manufacturer instructions and drawings when
preparing pipe ends for joining and using the
primer and the cement.
6. Size and cut wall opening such that a minimal
clearance is obtained and to allow easy insertion
of vent pipe.
. Venting
(continued)
E. Venting for Outdoor Installation
1. The outdoor AMP ships from the factory with an
outdoor venting kit. Kits use DuraVent FasNSeal
stainless steel vent pieces.
a. 4" outdoor vent kit: 110644-01
b. 6" outdoor vent kit: 110645-01
2. The louvered side panel on outdoor models is used
as the combustion air intake for the appliance.
a. Keep louvered panel clear from obstructions.
This panel can be placed on either side of the
appliance.
3. Condensate from the drain cap should be routed
with the condensate drain from the appliance.
WARNING
WARNING
Failure to follow these instructions could cause
products of combustion to enter the building,
resulting in severe property damage, personal
injury, or death.
Use CPVC vent components within any interior
space where air cannot circulate freely, including
through vertical or horizontal chase ways, inside
a stud wall, in closets, and through wall penetra
-
tions.
The use of cellular core PVC (ASTM F891), cel
-
lular core CPVC or Radel (polyphenolsulfone) is
prohibited.
All condensate that forms in the vent must be able
to drain back to the heat exchanger.
!
Figure 7: Outdoor Venting Installation
Drain Cap
Boot Tee
36" Straight
90° Elbow
Termination Tee
NOTICE
NOTICE
The outdoor vent system requires field installed
support. Do not rely on the vent adapter of the
appliance to hold the vent material
The outdoor vent kit may be shipped separately
from the appliance.
