Lochinvar WH 55-399 Sidewall termination – optional concentric vent, Description and usage

Installation & Operation Manual

4 Sidewall direct venting

Sidewall termination – optional concentric vent

Description and usage

Lochinvar offers optional concentric combustion air and vent pipe termination kits (Factory Kit #CVK3003 for 3" diameter - models 155 - 199, #CVK3008 for 2" diameter - models 55 - 110, or #CVK3007 for 4" diameter - models 285 - 399). 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. 4-6.

The required combustion vent pipe and fittings are listed in Table 3D, on page 19 of this manual.

Figure 4-6Concentric Sidewall Termination

3.Cut one (1) hole (5 inch diameter for #CVK3003 installations, 4 inch diameter for #CVK3008, or 7 inch diameter for #CVK3007 installations) into the structure to install the termination kit.

4.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. 4-7).

b.Cement the rain cap to the smaller diameter kit pipe (FIG. 4-7).

Figure 4-7Kit Contents - CVK3008 & CVK3003 (reference Table 3B on page 16)

Figure 4-8Kit Contents - CVK3007 (reference Table 3B on page 16)

Sidewall termination installation

1.Determine the best location for the termination kit (see FIG. 4-6).

2.Reference the Determine Location Section on page 22 of this manual for general termination considerations.

RAIN CAP

6" (152 MM) TO 4" (102 MM) REDUCER

6" (152 MM) DIA.

6" (152 MM) DIA.

4" (102 MM) DIA.

"Y" CONCENTRIC FITTING

6" (152 MM) DIA. 4" CONCENTRIC

"FLEXIBLE" PIPE COUPLING

VENT KIT

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