Reznor CAUA Unit Installation Manual - Manual (Page 14)

Form I-CAUA, P/N 164771 R8, Page 14
6.2.1.1 HORIZONTAL
Vent Instructions
Components
Required - Factory
and Field
TABLE 9 - Parts in
Option CC6, Horizontal
Vent Terminal/
Combustion Air
Package
Field-supplied
installation
requirements:
• Vent pipes - see requirements, page 9.
• Combustion air pipes - see requirements, page 9.
• Taper-type vent pipe diameter reducers and/or increasers as required.
• Thimble (a thimble is not required if wall is of non-combustible construction).
• Flashing.
• Sheetmetal screws, tape, and sealant as required.
Installation Instructions
for Horizontal Vent Kit,
Option CC6
1) Determine the location on the outside wall for the vent terminal. Location
must comply with vent length requirements, Requirement No. 3 on page 10. Allow
1/4" per foot (6mm per 305mm) downward pitch for condensate drain.
The distance of the termination of the horizontal vent from adjacent public walkways,
adjacent buildings, openable windows, and building openings must be in accordance
with local codes or, in the absence of local codes, must conform with National Fuel
Gas Code Z223.2. Local codes supersede all provisions in these instructions and in
the National Fuel Gas Code. Minimum clearances for the horizontal vent terminal are
shown below. Also, select a location that complies with adjoining building clearances
as shown in FIGURE 8, page 16.
Products of combustion can cause discoloring of some building finishes and
deterioration of masonry materials. Applying a clear silicone sealant that is normally
used to protect concrete driveways can protect masonry materials. If discoloration is
an esthetic problem re-locate the vent or install a vertical vent.
WARNING: All vent
terminals must
be positioned or
located 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.
TABLE 10 - Clearances
to Horizontal Vent
Terminal
Screened
Exhaust
Assembly
Inlet
Guard
Qty
150,
200
250, 300,
350, 400
Description
1 205882 205883 Complete Horizontal Vent Kit (Same as
Option CC6)
1 205884 205885 Concentric Adapter Box Assembly (FIGURE
5, page 12.)
1 155096 53316 Screened Exhaust Assembly (illustrated
below)
1 205893 205894 Inlet Guard (illustrated below)
4 37661 37661 #10-16 x 1/2" long Screws to attach the
inlet guard
2 207232 207232 Brackets for attaching Concentric Adapter
Box ( FIGURE 7, page 15.)
1 53335 53335 Tube of High Temperature Silicone Sealant
Structure
Minimum Clearances for Vent Terminal Location
(all directions unless specified)
Forced air inlet within 10 ft (3.1M)* 3 ft (0.9M) above
Combustion air inlet of another appliance 6 ft (1.8M)
Door, window, or gravity air inlet (any
building opening)
4 ft (1.2M) horizontally
4 ft (1.2M) below
1 ft (305mm) above
Electric meter, gas meter ** and relief
equipment
U.S. - 4 ft (1.2M) horizontally;
Canada - 6 ft (1.8M)
Gas regulator ** U.S. - 3 ft (0.9M); Canada - 6 ft (1.8M) horizontally
Adjoining building or parapet 6 ft (1.8M)
Adjacent public walkways 7 ft (2.1M) above
Grade (ground level) 3 ft (.9M) above***
*Does not apply to the inlet of a direct vent appliance. **Do not terminate the vent directly
above a gas meter or service regulator. *** Consider local snow depth conditions. The vent
must be at least 6” (152mm) higher than anticipated snow depth.
2) Install the Vent Pipe and Combustion Air Pipe Runs - Use the type of pipe
specified in Requirement No. 1, page 9. Comply with requirements in Requirement
No. 2 and No. 4 when attaching pipes to the heater.
6.0 Mechanical
(cont'd)
6.2 Venting and Combustion Air (cont'd)
6.2.1 Venting and Combustion Air Requirements for a Separated
Combustion (cont'd)