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VII. Venting (continued)
D. Room Air for Combustion
1. If using room air for combustion (intake), install
the included screen to the intake opening of the
appliance.
a. Sizes 400-500: The included circular rodent
screen can be pushed into the 4 in. PVC slip on
the rear panel.
b. Sizes 650-1000: Remove the 6 screws holding the
6 in. aluminum collar and gasket to the rear panel.
Use the same screws to install the included mesh
screen covering the intake opening.
E. PVC Venting
1. When venting with PVC material, the CPVC vent
kit must be connected to the vent adapter of the
appliance. PVC can be installed downstream all the
CPVC vent kit material. The CPVC vent kit includes
a 30 in. long Sch. 40 pipe and a 90° Sch. 80 elbow.
a. 4 in. CPVC vent kit, sizes 400-500: 111569-01
b. 6 in. CPVC vent kit, sizes 650-1000: 111569-02
2. Apply supplied silicone lubricant to gasket inside
vent connector. The grease will prevent gasket
rupture when inserting vent pipe and gasket
deterioration due to condensate exposure.
3. The 30 in. long CPVC straight pipe may be cut to
accommodate desired vent configuration provided
both pieces are used in conjunction with the CPVC
90° Elbow before any PVC components are used.
Ensure that the CPVC 90° Elbow is the first elbow
used in the vent system as it exits the boiler.
F. 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.
AMP 400-1000L I&O Manual
CAUTION
CAUTION
Use all CPVC vent kit components for near-boiler
vent piping before transitioning to Schedule 40
PVC pipe (ASTM 2665) components for remainder
of vent system.
Do not exceed maximum vent/combustion air
system length.
It is the Responsibility of the installing contractor
or venting designers to comply with national and
local codes and follow best industry practices for
installing vent support, drainage, and pitch.
Termination Tee
90° Elbow
36" Straight
Boot Tee
Drain Cap
Figure 7: Outdoor Venting Installation
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.
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