Lochinvar 000 - 2, 495, 065 service manual TABLE-A Flue Pipe Sizes, Parapet Wall

Installation and

Service Manual

You must locate the air inlet termination elbow at least 12" (30cm) above the roof or above normal snow levels.

Keep the vent cap clear of snow, ice, leaves, and debris to avoid blocking the flue.

Figure 12 - Vent Termination from Flat Roof 10' or Less from

Parapet Wall

Figure 10 - Vent Termination from Peaked Roof - 10' or Less From Ridge

IMPORTANT: Vent terminations are not shown in Figures 10, 11, 12, and 13. Make sure all vertical vents are installed with vent terminations recommended by the vent manufacturer.

Figure 11 - Vent Termination from Peaked Roof More Than 10' From Ridge

Figure 13 - Vent Termination from Flat Roof More Than 10' from Parapet Wall

￿CAUTION: Units which are shut down or will not operate may experience freezing due to convective air flow in the flue pipe, through the air inlet, or from negative pressure in the mechanical room. In cold climates, operate pump continuously to help prevent freezing of boiler water. Provide proper freeze protection. See Freeze Protection, page 7.

TABLE-A

Flue Pipe Sizes

11