Exhaust Tapping For Vent Sample; Boiler Removal From Common Venting System - RBI IEW-199 Installation And Operation Instructions Manual

7. Exhaust and air inlet piping is to be supported
separately and should not apply force to the boiler.
8. Penetration openings around the vent pipe and air
intake piping are to be fully sealed to prevent exhaust
gases from entering building structures.
9. PVC & CPVC Piping:
a. Use only solid PVC or CPVC Schedule 40 or 80
pipe for exhaust venting. Cellular core PVC or
CPVC is not approved for exhaust vent.
b. All joints in vent pipe, fittings, attachment to the
boiler stub, and all vent termination joints must be
properly cleaned, primed and cemented. Use only
cement and primer approved for use with PVC or
CPVC pipe that conforms to ANSI/ASTM D2564.
c. A straight coupling is provided with the boiler to
be used as an outside vent termination. One of
the two screens is to be installed to prevent birds
or rodents from entering.
d. An air intake tee is provided with the boiler to be
used as an outside air intake termination. A screen
is to be installed to prevent birds or rodents from
entering.
e. The following are optional combination air
intake/exhaust terminations that are available
separately from your RBI distributor for use with
Infinite Energy boilers.
Table 3.5: Vent Termination Kits
Description
3" PVC Concentric Vent Termination Kit
3" Stainless Steel Vent Termination Kit
f. Refer to Figures 3.3 to 3.6 for sidewall venting
options using PVC or CPVC pipe.
g. Refer to Figures 3.7 & 3.8 for vertical venting
options using PVC or CPVC pipe.
F.

EXHAUST TAPPING FOR VENT SAMPLE

To properly install the boiler, carbon dioxide (CO
carbon monoxide (CO) readings are to be determined
from a sample of combustion gases from the vent pipe.
To do this, a hole must be drilled in the vent pipe.
a. Drill a 21/64" diameter hole in the exhaust vent
pipe at a point between 6" and 12" from the
boiler connection.
b. Tap the hole with a 1/8" NPT pipe tap.
c. Use a 1/8" NPT, PVC or Teflon Pipe Plug to seal
the hole.
See Section 9.D.7 for instructions on taking combustion
readings.
G. BOILER REMOVAL FROM COMMON
VENTING SYSTEM
If removing an existing boiler from a common vent
system the following steps must be carried out for each
appliance that remains connected. These steps are to be
completed for each appliance while the other appliances
that remain connected are not in operation.
Stock Code
3391403
3354161
) and
2
VENTING & AIR INLET PIPING
a. Seal any unused openings in the common venting
system.
b. Visually inspect the venting system for proper size
and horizontal pitch. Verify that there is no
blockage or restriction, leakage, corrosion, and
other deficiencies which could cause an unsafe
condition.
c. Where practical, close all building doors and
windows. This includes interior doors between the
space in which the appliances remaining
connected to the common venting system are
located and other interior spaces in the building.
d. Turn on clothes dryers and any other appliance
not connected to the common venting system.
Exhaust fans such as range hoods or bathroom
exhaust fans are to be operated at their maximum
speed (do not operate a summer exhaust fan).
e. Close fireplace dampers.
f. Place the appliance that is being inspected in
operation. Follow the lighting instructions and
adjust the thermostat so that the appliance will
operate continuously.
g. Test for spillage at the draft hood relief opening
after 5 minutes of main burner operation. Use the
flame from a match or candle, or smoke from a
cigarette, cigar, or pipe.
h. After each appliance remaining connected to the
common vent system has been determined to vent
properly as outlined above, doors, windows,
exhaust fans, fireplace dampers and any other gas
burning appliance are to be returned to their
previous condition of use.
i. Any improper operation of the common venting
system should be corrected at once so that the
installation conforms with the National Fuel Gas
Code, ANSI Z223.1/NFPA 54 and/or CAN/CGA
B149 Natural Gas and Propane Installation Code.
j. When resizing any portion of the common venting
system, the system should be resized to approach
the minimum size as determined using the
appropriate tables in Part 11 of the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 and or
CAN/CSA B149.1, Natural Gas and Propane
Installation Code.
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