Lochinvar 51-211 operation manual Sidewall termination - optional concentric vent models

Models: 51-211

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Sidewall termination – optional concentric vent models

Installation & Operation Manual

4 Sidewall direct venting (continued)

Sidewall termination – optional concentric vent models

Figure 4-8Concentric Vent Dimensional Drawing

NOTICE

Instead of cementing the smaller pipe to

the rain cap, a field-supplied stainless steel

 

screw may be used to secure the two (2)

 

components together when field disassembly

 

is desired for cleaning (see FIG. 4-9).

5.Install the Y concentric fitting and pipe assembly through the structure’s hole.

NOTICE

Do not allow insulation or other materials

to accumulate inside the pipe assembly

 

 

when installing through the hole.

￿WARNING

￿WARNING

When using the alternate screw assembly method, drill a clearance hole in the rain cap and a pilot hole in the vent pipe for the screw size being used. Failure to drill adequate holes may cause cracking of PVC components, allowing combustion products to be recirculated. Failure to follow this warning could result in personal injury or death.

Do not operate the appliance with the rain cap removed or recirculation of combustion products may occur. Water may also collect inside the larger combustion air pipe and flow to the burner enclosure. Failure to follow this warning could result in product damage or improper operation, personal injury, or death.

6.Install the rain cap and small diameter pipe assembly into the Y concentric fitting and large pipe assembly. Ensure small diameter pipe is bottomed and cemented in the Y concentric fitting.

7.Secure the assembly to the structure as shown in FIG. 4-10 using field-supplied metal strapping or equivalent support material.

NOTICE

Ensure termination location clearance

dimensions are as shown in FIG. 4-6.

 

If assembly needs to be extended to

NOTICE

allow sidewall thickness requirement, the

 

 

two (2) pipes supplied in the kit may

 

be replaced by using the same diameter,

 

field-supplied SDR-26 PVC (D2241) pipe.

 

Do not extend dimension D more than 60

 

inches (see FIG. 4-8).

Figure 4-9Rain Cap to Vent Pipe Alternate Assembly

NOTICE

If assembly needs to be reduced, dimension

D can be as short as possible.

 

Figure 4-8Concentric Vent Dimensional Drawing 27 Figure 4-9Rain Cap to Vent Pipe Alternate Assembly

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Lochinvar 51-211 Sidewall termination - optional concentric vent models, 8 Concentric Vent Dimensional Drawing