Burnham Revolution Installation, Operating And Service Instructions page 27

The following parts are required for installation which are
not included with this kit. Parts are supplied by others.
•
(1) B-Vent Storm collar – 5 inch
•
(1) B-Vent Boot Flashing – 5 inch
•
(1) B-Vent Support – 5 inch
•
(2) B-Vent Tee – 5 inch
•
(1) B-Vent 1 Foot Pipe Length – 5 inch
•
(1) Fire Stop for Each Floor or Attic Penetration
•
Adequate 5 inch B-Vent for Vertical Run
•
Adequate 3 inch AL 29-4C
Vertical Run and Connection to Boiler
•
Adequate Air Intake Piping to Connect B-Vent to
Boiler
•
Adequate Sealant to Ensure Air Tight System
1. Do not exceed maximum vent/air intake lengths.
Refer to Table 4.
2. Position boiler as close to vertical run as possible.
3. Install 5 inch B-vent support, B-vent vertical run,
flashing boot and storm collar per B-vent
manufacturer's instructions. Apply silicone sealant
to all B-vent joints. Refer to B-vent manufacturer
for approved sealants.
NOTE: Roof penetration must allow enough pipe to
extend above roof surface to maintain minimum
vertical ("X") and minimum horizontal ("Y")
distance of twelve (12) inches from roof surface
when B-Vent tee is installed. Allow additional
vertical ("X") distance for expected snow
accumulation. See Figure 12.
NOTICE
All exposed B-Vent must be protected with a
high quality, non-latex, enamel paint.
4. Install B-vent tee at bottom of B-vent vertical run.
Position horizontal leg of tee to allow connection to
air intake piping to boiler. Seal joint per B-vent
manufacturer's instructions.
5. Install vertical lower seal plate to bottom leg of
B-vent tee. See Figure 12.
6. From top of B-vent vertical run, install three (3) inch
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AL 29-4C vent pipe. Refer to Sections C through E
for proper procedures for joining vent pipe and
fittings.
NOTE: Female (bell) end of vent pipe is used at
vent terminal.
7. Allow minimum of three (3) inches of vent piping to
extend through lower seal plate of bottom B-vent
tee.
8. Join vent disc terminal to vent terminal elbow.
Refer to Sections C through E for proper procedures
for joining vent pipe and fittings.
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Vent Pipe for
9. Insert vent disc terminal assembly into horizontal
leg of the remaining B-vent tee. See Figure 14.
Secure terminal to tee.
NOTICE
Minimum clearance to combustible material of
B-vent is normally one (1) inch. Follow B-vent
manufacturer's instructions.
10. Install B-vent/vent disc terminal assembly to vertical
three (3) inch AL 29-4C
vertical B-vent run.
a. Join vertical vent pipe run to vent disc terminal
assembly. Refer to Sections C through E for
proper procedures for joining vent pipe and
fittings.
b. With vertical vent pipe and vent disc terminal
assembly joined, lower B-vent tee to join B-vent
vertical run. Seal joint per B-vent manufactur-
er's instructions.
NOTE: Position horizontal leg of B-vent tee in
direction opposite pitch of roof. See Figure 12.
11. Install one (1) foot B-vent pipe into top leg of
B-vent tee. Seal per B-vent manufacturer's
instructions.
12. Install disc air intake terminal (supplied with boiler)
to one (1) foot B-vent pipe.
a. Insert collar of disc air intake terminal into air
intake inner disc. Secure disc air intake terminal
to inner disc using four (4) 10 - 32 x ¼ inch
stainless steel machine screws and stainless steel
nuts provided. See Figure 13.
b. Install inner disc/air intake terminal assembly
onto top of one (1) foot B-vent pipe. Secure
inner disc to B-vent pipe and seal with RTV.
13. Install lower air intake adapter to interior B-vent
tee's horizontal leg. Secure adapter and seal with
RTV.
Connect boiler vent connector to vertical vent
14.
pipe run
. See Figure 12.
a. Vent length is measured from boiler to vent
terminal. Do not exceed maximum vent length.
b. Start at vent connector on top of boiler and work
towards vent piping positioned in B-vent tee.
c. Maintain minimum 1/4 inch per foot slope in
horizontal runs. Slope down towards boiler.
d. Use non-combustible 3/4 inch pipe strap to
support horizontal runs and maintain vent
location and slope. Maximum support spacing is
five (5) feet.
e. Install vent piping, connect vent connector on
top of boiler and vent pipe positioned in B-vent.
Refer to Sections C through E for proper
procedures for joining vent pipe and fittings. See
Figures 3 (A, B, C and D).
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vent pipe run and to