“Direct Vent” Combustion Air Intake Piping; Vent Terminal Clearance; Distance Inside / Outside Minimums - IBC DC Series Installation And Operating Instructions Manual

D
V
E
B
V
L
V VENT TERMINAL X AIR SUPPLY INLET
Figure 14A: Vent Terminal Clearance
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DC SERIES BOILERS / WATER HEATERS DC 15-95, DC 15-96, DC 20-125, DC 33-160
C
FIXED
V
CLOSED
OPERABLE
V
F
B
AREA WHERE TERMINAL IS NOT PERMITTED
Figure 14B: Distance Inside / outside minimums
1.4.7 "Direct Vent" Combustion Air Intake Piping
The boiler / water heater must always be installed as a Direct Vent venting
system with the combustion air piped directly from the outdoors to the boilers
/ water heaters combustion air connection. Provisions for combustion and
ventilation air in accordance with the section "Air for Combustion and Ventilation,"
of the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or Clause 8.2, 8.3 or 8.4
of Natural Gas and Propane Installation Code, CAN/CSA B149.1, or applicable
provisions of the local building codes.
INSIDE
CORNER DETAIL
G
V
A
B
B
V
FIXED
CLOSED
V
OPERABLE
B
X
V
B
J
A
INSTALLATION AND OPERATION INSTRUCTIONS
H
I
M
X
V
K