Form No. PMG-100/200M-0805
19
INSTALLATION
b. Horizontally vented through an outside wall
directly to the outdoors. See additional
instructions below. (See Figure 9.)
c. Exhausted into a vertical masonry chimney
that has a listed steel liner installed in the
chimney. Locate appliance as close as
practicable to a chimney or gas vent.
Because of the low flue gas temperature, do
not vent into an unlined or masonry lined
chimney. Note that all venting into a vertical
chimney of any type must comply with the
horizontal and vertical ratios and sizing
requirements that are detailed in the National
Fuel Gas Code.
d. Vented vertically using type B vent pipe that is
5" (127 mm) in diameter provided the
termination above the roof uses a listed wind
cap.
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AL 29-4C is a Registered Trademark of Allegheny Ludlum
Corp.
VENTING
The PMG-100 and PMG-200 may be vented by two
methods, both of which have been tested for
compliance with national safety standards for gas
water heaters. Whichever method is used must
comply with local codes. The installation of the
venting system must comply with local codes and in
the absence of local codes, in accordance with the
National Fuel Gas Code and the guidelines in this
manual.
Before installing any method of venting
you should contact the local code authority of
your gas supplier to make sure that the final
installation will be acceptable to the authorities
having jurisdiction.
The proper method of venting a power vented gas
appliance is too complicated to cover in this manual
and is explained in detail in the National Fuel Gas
Code. Before installing the venting system the
person or agency making the installation must be
familiar and experienced with the guidelines of the
National Fuel Gas Code.
The temperature of the flue gases from this booster
water heater operates at approximately 225°F to
275°F (107°C to 135°C).
The two methods that have been tested for
compliance with the national safety standards are:
1. The first method of venting permits the
connection of 4" (102 mm) diameter, AL 29-4C
1
stainless steel vent pipe. Use only the specific
types of materials currently listed by a nationally
recognized testing agency for category III
venting.
The maximum combined horizontal
vent length must not exceed a length of
40 feet (12 m) [each sweep elbow is the
equivalent of 5' (1.5 m) of straight pipe and a
standard right elbow is the equivalent of
10 feet (3 m)].
The venting may be done in such
a way that the exhaust products are:
a. Conveyed to another area in the kitchen such
as under a ventilator or near an exhaust fan
(both of which exhaust outdoors).
(See Figure 8.)
When using this method the booster water
heater must be electrically interlocked with
the vent hood to prevent operation if the vent
hood is not operating.
The termination end must be placed so that it
vents above the bottom of the hood skirt. Do
not penetrate the filter with the vent.
Figure 8. Venting Through Typical Exhaust System.
Содержание POWERMITE PMG-100
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