1. Determine the location of the vent terminal.
Select a location away from fresh air intakes, allowing space for the con-
centric adapter box inside. Vent terminal must be located from adjacent
buildings as shown in
FIGURE 20
, page 27.
WARNING: All vent terminals must be positioned or lo
-
cated away from fresh air intakes, doors, and windows to
preclude combustion products from entering occupied
space. Failure to comply could result in severe personal
injury or death and/or property damage.
If more than one vertical concentric vent/combustion air terminal (Option
CC2) is being installed, the minimum spacing between vent centerlines is
determined by the minimum outdoor design temperature (most extreme
outdoor condition at the installation site).
Minimum Outdoor Design
Temperature
Minimum Spacing between Centerlines of Vent Pipes in
Vertical Combustion Air/Vent Terminals (Option CC2)
°F
°C
inches
mm
31 or warmer 0 or warmer
36
914
-10 to 30
-23 to -1
60
1524
less than -10 less than -23
84
2134
Installation Instructions
for Vertical Vent/
Combustion Air Kit
Option CC2
(in compliance with
requirements on
pages 13-19)
Parts in the Vertical Vent
Terminal/Combustion Air
Package (Option CC2)
Components Required - Factory and Field
• Vent pipes and fittings
as illustrated in
FIGURE 8A, 8B, 9A or 9B
on
pages 14 and 15
• Combustion air pipes (6” and 8” single-wall galvanized pipe)
• Flashing
• Sheetmetal screws, tape, primer, cement, and sealant as required
Before beginning, verify that the kit is at the site and that all components
are correct for the installation. Be sure all required field-supplied parts are
available.
Field-supplied
requirements:
7.2.3
VERTICAL VENT
TERMINAL Installation -
Option CC2
Minimum Vent Terminal
Spacing when Installing
more than one Heater
7.2 Venting and
Combustion Air
(cont’d)
7. Mechanical
(cont’d)
Complete Vertical Vent/Combustion Air Kit (Same as Option
CC2), P/N 221248
Qty
P/N
Description
1
221069
Concentric Adapter Box with Silicone Sealing Ring (See
Paragraph 7.2.1.9
, pages 18-19.)
1
221215
Bird Guard
2
37661
Screws for Bird Guard. #10x1/2" self-drilling
1
221250
Combustion Air Inlet
1
221185
Rain Collar
1
221091
4" PVC Cap for Vent Condensate Drain Connection (See
FIGURE 8A and 9A
on page 14 and 15.)
Form I-UEAS, Page 24
