American Standard Standard Residential, Руководство по эксплуатации, установке и обслуживанию

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g. Close the panel on the junction box. Make sure the
access panel
is properly secured.
6. The blower discharge coupling boot is made to accept
only straight sections of 2” pipe. To start off with an
elbow, a short section of the straight pipe must be cut
and glued into the end of the elbow that will mount on
the discharge boot.
7. A rubber coupling is an integral part of the vent
system and must be used in every installation. Failure
to do so may result in overheating, poor performance,
nuisance lock-outs, personal injury or death.
INSTALLATION OF VENT SYSTEM
Before beginning installation of piping system, thoroughly
read the “Vent Pipe Preparation” section of this manual.
PLANNING THE VENT SYSTEM
Plan the layout of the vent system from the vent termination
to the water heater considering all of the 90 degree and 45
degree elbows plus the number of feet of pipe that would
be needed to install the total vent system. The water heater
must be vented to the outdoors as described in these
instructions. This water heater must be vented separately
from all other appliances. The unit may be vented horizontally
through a wall or vertically through the roof. Pipe runs must
be adequately supported along both vertical and horizontal
runs.
Note: Do not use an elbow as a support point. Elbows are
not designed to carry the load or stresses of the venting
system if they are rigidly held.
It is imperative that the first hanger (or support) be located
on the horizontal run immediately adjacent to the first 90°
elbow from the vertical rise. Support method used should
isolate the vent pipe from the floor joists or other structural
members to prevent the transmission of noise and vibration.
Do not support, pin, or otherwise secure the venting system
in a way that restricts the normal thermal expansion and
contraction of the chosen venting material.
If the water heater is being installed as a replacement for
an existing power vented heater in pre-existing venting,
a thorough inspection of existing venting system must be
performed prior to any installation work. Verify that correct
material, as detailed in below, has been used, and that the
minimum or maximum vent lengths and terminal location as
detailed in this manual have been met.