Reznor RPBL Unit Installation Manual - Manual (Page 19)

Form I-SSCBL/RPBL, P/N 149159 R7, Page 19
6.2.1.2 Horizontal Vent
Instructions - Model
SSCBL
Components Required - Factory and Field
FIGURE 15 - Parts in
each Horizontal Vent
Terminal/Combustion
Air Package (Option
CC6) - One required for
each furnace section.
Field-supplied
installation
requirements:
• Vent pipes - see requirements, page 15.
• Combustion air pipes - see requirements, page 15.
• 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.
Screened
Exhaust
Assembly,
P/N 53316
Inlet Guard,
P/N 205894
Qty P/N Description
1 205883 Complete Horizontal Vent Kit (Same as Option CC6)
1 205885 Concentric Adapter Box Assembly (See FIGURE 13, page 17.)
1 53316 Screened Exhaust Assembly (illustrated below)
1 205894 Inlet Guard (illustrated below)
4 37661 #10-16 x 1/2" long Screws to attach the inlet guard
2 207232 Brackets for attaching Concentric Adapter Box (FIGURE 16B, page 20)
1 53335 Tube of High Temperature (450°F) Silicone Sealant
Installation Instructions
for Horizontal Vent Kit
Option CC6 - Model
SSCBL
1. Determine the location on the outside wall for the vent terminal. Location must
comply with vent length requirements, Requirement No. 4 on pages 15-16. In most
applications, the terminal would be on a level with the heater mounting height. 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 17, page 21.
Products of combustion can cause discoloring of some building finishes and deteriora-
tion of masonry materials. Applying a clear silicone sealant that is normally used to pro-
tect concrete driveways can protect masonry materials. If discoloration is an esthetic
problem re-locate the vent or install a vertical vent.
2. Install the Vent Pipe and Combustion Air Pipe Runs - Use the type of pipe speci-
fied in Requirement No. 2, page 15. Comply with requirements in Requirement No. 3,
page 15, when attaching pipes to the heater.
Seal all joints. Due to the high temperature,
do not enclose the exhaust pipe or place
pipe closer than 6" (152 mm) to combustible material. Extend the runs close to the wall
location selected in Step 1. Support pipes as required in Requirement No. 6, page 17.
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.
Clearances to a
Horizontal Vent
Terminal
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.