27
SSCBL-RPBL-IOM (10-22) 149159-C
4 . Connect sensor wires:
a . For units with sensor holder:
(1) Determine where sensor wire should enter box and remove knockout .
(2) Secure field-supplied cable connector to box, connect sensor wire, and install box cover .
b . For all options, ensure that all sensor wires are connected in accordance with wiring diagram provided with unit .
Venting/Combustion Air Connections (Model SSCBL)
⚠ WARNING ⚠
Do not use an existing venting system. Each furnace section requires installation of the combustion
air/vent system ordered with the unit (either option CC2 or CC6). Vent installation to be any listed
vent system manufacturer. Do not intermix different vent system parts from different manufacturers
in the same venting system.
NOTE: All model SSCBL installations require a vent/combustion air kit for each furnace section.
•
All separated-combustion, power-vented units MUST BE equipped with both combustion air and exhaust piping
to the outdoors . The unique concentric adapter box designed for use with this heater allows for both combustion
air and exhaust piping with only one horizontal or vertical penetration hole in the building .
•
These instructions apply to installation and use of the concentric adapter and vent/combustion air kit (option CC2
or CC6) designed for use with all Reznor separated-combustion products . The systems illustrated in this manual
are the only venting/combustion air systems approved for these separated-combustion units . Do not use this
concentric adapter box with any other products .
•
Installation should be done by a qualified agency in accordance with these instructions . The service agency
installing this separated-combustion system is responsible for the installation .
Specific Venting Requirements: Piping
All pipe is field-supplied . Requirements for both the vent pipe and the combustion air inlet pipe are as follows:
• Vent pipe:
Vent pipe approved for a Category III appliance OR single-wall, 26-gauge or heavier galvanized (or a
material of equivalent durability and corrosion resistance) vent pipe is required between the furnace section and
the concentric adapter box . Double-wall (Type B) vent pipe is required for the vent terminal section . The length
of vent pipe that extends through the box and runs concentric through the combustion air pipe must be one piece
with no joints .
• Combustion air pipe:
Sealed, single-wall galvanized pipe is recommended for combustion air .
• Pipe length and diameter:
Vent pipe diameters and maximum indoor vent lengths apply to both horizontal and
vertical vents . Pipe diameter and length requirements listed for the indoor sections of pipe—between the heater
and the concentric adapter box—are listed in
NOTE: Add all straight sections and equivalent lengths for elbows. The total length of the straight
sections and elbows must not exceed the maximum length.
• Outdoor concentric pipes length and diameter:
The lengths of the outside (terminal) concentric pipes depend on
the installation . The diameters are 8 inches (203 mm) for the inlet air pipe and 5 inches (127 mm) for the vent pipe .
