Reznor SDH Option - Installation - Venting Instructions - Manual (Page 6)

Form I-SDH-V, P/N 211410 R5, Page 6
Venting Requirements (cont’d)
7. Concentric Adapter Box (cont’d)
Model SDH 150 - Pipe Diameters and Connections
Required at the Concentric
Adapter Box
Concentric
Adapter
Box
8” (203mm) diameter
single-wall
inlet air pipe 5” (127mm) diameter
single-wall inlet air pipe
attaches to the heater
.
5” (127 mm) diameter single-wall or Category III
vent pipe attaches to the heater.
5” (127mm) diameter
vent pipe (if vertical
vent terminal, pipe
must be double-wall)
Requires a 6”to 5” (152 to
127 mm) taper-type reducer.
Taper-type
Pipe Diameter
Increaser Airflow
• Size 150 requires a 5” to
6” (127mm to 152mm)
taper-type increaser in the
combustion air pipe.
FIGURE 8 - Concentric
Adapter Box
Connections for Model
SDH Size 150
Horizontal Terminal, Option CC6,
instructions begin below.
Vertical Terminal, Option CC2,
instructions begin on page 9.
FIGURE 10 - Follow the
Instructions that apply to
the Vent/Combustion Air
Terminal being installed.
Is the Vent Terminal
HORIZONTAL OR
VERTICAL?
FIGURE 9 - Concentric
Adapter Box Connections for
Sizes 300, 350, and 400A
• Sizes 300, 350, and 400A
always require a 6” to 5” (152
to 127 mm) reducer in the vent
pipe.
Taper-
type
Pipe
Diameter
Reducer
Airflow
Model SDH 300, 350, and 400A - Pipe Diameters
and Connections Required at
the Concentric Adapter Box
Requires a 6 to 5 inch (152 to 127mm) taper-type
pipe diameter reducer a maximum of 6” (152mm)
from the concentric adapter box.
Concentric
Adapter Box
8” (203mm) diameter single-wall
inlet air pipe
6” (152mm) diameter
single-wall inlet air pipe
attaches to the heater
. 6” (152mm) diameter
single-wall or
Category III vent pipe
attaches to the heater
.
5” (127mm) diameter
vent pipe (if vertical
vent, pipe must be
double-wall)
HORIZONTAL
TERMINAL
INSTRUCTIONS -
Option CC6
Components Required -
Factory and Field
Field-supplied installation requirements:
• Vent pipes - see requirements, page 2
• Combustion air pipes - see requirements, page 2
• 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
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.