Install Instructions

Installation & Operation Manual
28
4 Sidewall direct venting
Sidewall termination – optional concentric vent
Description and usage
Lochinvar offers an optional concentric combustion air and
vent pipe termination kit (100140480). Both combustion
air and vent pipes must attach to the termination kit. The
termination kit must terminate outside the structure and
must be installed as shown below in FIG. 4-7.
The required combustion vent pipe materials are listed in
Table 3B, on page 18 of this manual.
Figure 4-7 Concentric Sidewall Termination
Sidewall termination installation
1. Determine the best location for the termination kit (see
FIG. 4-7).
2. Reference the Determine Location Section on page 21 of
this manual for general termination considerations.
4" DIA.
SDR-26 PIPE
3" DIA.
SDR-26 PIPE
RAIN CAP
"Y" CONCENTRIC
FITTING
Figure 4-8 Kit Contents_100140480
4. Cut one (1) hole (5 inch diameter) into the structure to
install the termination kit.
5. Partially assemble the concentric vent termination kit.
Clean and cement using the procedures found in these
instructions.
a. Cement the Y concentric fitting to the larger kit pipe
(FIG. 4-8).
b. Cement the rain cap to the smaller diameter kit pipe
(FIG. 4-8).
Roof Terminations
Size Part No.
3" ICRT3539
Wall Terminations
Size Part No.
3" ICWT352
Table 4E Alternate Centrotherm Concentric Vent Terminations