Specifications

Part number 550-100-090/0809
17
g a s -f i r e d w a t e r b o i l e r — Boiler Manual
BASIC INSTALLATION
Venting/air piping — general (continued)
Ultra Boilers must be vented
and supplied with combustion
and ventilation air using piping
and methods described in this
manual
.
Every boiler must have its own
vent
. DO NOT common vent with
any other appliance. See page 16.
Inspect finished vent and air piping
thoroughly to ensure all are airtight
and comply with the instructions
provided and with all requirements
of applicable codes.
Failure to provide a properly-in-
stalled vent and air system will cause
severe personal injury or death.
Installations must comply with local
requirements and with the National
Fuel Gas Code, ANSI Z223.1 for
U.S. installations or CSA B149.1 or
B149.2 for Canadian installations.
Use only the materials listed in this
manual for vent and air pipe and fit-
tings. Failure to comply could result
in severe personal injury, death or
substantial property damage.
If used, a masonry chimney can
ONLY be used as a PIPE CHASE
for vent and air pipes
— The vent
and air piping must be installed as
instructed in this manual and all
joints must be sealed. The chimney
must be used only for Ultra boilers.
NO OTHER appliance or fireplace
can be connected to the chimney.
The chimney must be straight, with
no offsets, and the vent and air pip-
ing materials must comply with this
instruction manual.
The chimney must be fitted with
a sealed access opening, through
which the interior of the chimney
can be inspected.
The chimney and liner must be
inspected at least once annually to
verify condition.
Failure to comply could result in
severe personal injury, death or
substantial property damage.
Combustion air piping
Combustion air must be piped from outside to the boiler, following the 1.
instructions in this manual, and compliant with all applicable codes.
Read the warning in Figure 11, page 16, and ensure the air intake will
not be likely to draw in contaminated air.
Combustion air can be piped individually for each boiler, or it can be 2.
manifolded as shown in Figure 59, page 55. Air piping must always
terminate on the same side (or roof ) of the building as the vent.
Vent piping
Boiler flue gases must be piped from the boiler to outside, following the 1.
instructions in this manual, and compliant with all applicable codes.
The vent pipe must terminate either through the sidewall or through
the roof, located with the correct separation from the air termination.
See Figure 14, page 18, and the associated instructions referenced.
Each Ultra boiler requires a separate vent. Do not common vent.2.
Vent and air piping materials
See 1. Figure 12 for approved vent and air piping materials.
Use only the materials listed below, ensuring that all Figure 12
materials meet local codes
Item Material
Standards for installations in:
United States Canada
Plastic piping materials
Vent or air
pipe
&
ttings
PVC schedule 40 ANSI/ASTM D1785
Plastic vent pipe must
be certified to UL S636
when required.
Air pipe can be any
of those listed at left
if acceptable for local
codes.
PVC-DWV ANSI/ASTM D2665
CPVC schedule 40 ANSI/ASTM F441
ABS-DWV schedule 40 ANSI/ASTM D2661
PVC &
ABS pipe
cement &
primer
PVC ANSI/ASTM D2564
CPVC ANSI/ASTM F493
ABS ANSI/ASTM D2235
AL29-4C piping materials
Vent pipe
AL29-4C
stainless
steel
Heat Fab, Inc.
Saf-T-Vent
®
Z-Flex, Inc.
Z-Vent II
Protech Systems
FasNSeal™
Certified for Category
IV and direct vent
appliance venting
Certified for Category
IV and direct vent
appliance venting
AL29-4C vent piping — Install a PVC-to-stainless adapter
supplied by the vent pipe manufacturer at the boiler vent
connection and at the termination (when using Weil-
McLain plate or concentric PVC termination). DO NOT
mix piping from different vent pipe manufacturers unless
using adapters specifically designed for the purpose by the
manufacturer.
Plastic piping — Do not attempt to connect different types
of plastic piping together.
DO NOT use cellular core pipe.