Lochinvar 151 Sidewall direct venting continued, 3A Clearance to Gravity Air Inlets

Installation & Operation Manual

4 Sidewall direct venting (continued)

Vent/air termination – sidewall

Figure 4-1CAlternate Stainless Steel Vent Termination

-Typical Stainless Steel Sidewall Termination of Air and Vent Models 286 - 601 w/Field Supplied Fittings, Utilizing FasNSeal’s Hood Intake. Available Through FasNSeal Only

Figure 4-2BAlternate Stainless Steel Sidewall Termination Models 701 - 801 w/Field Supplied Fittings

BIRD SCREEN

TO BOILER

INTAKE AIR

CONNECTION

12" (305 MM) MIN

TO BOILER INTAKE AIR CONNECTION

FROM BOILER VENT PIPE CONNECTION

12" (305 MM) MIN 15" (381 MM) MAX

15" (381 MM) MAX

FROM BOILER

VENT PIPE

CONNECTION

12" (305 MM) MIN

GRADE OR

SNOW LINE

Figure 4-1DAlternate PVC/CPVC/SS Vent Termination

-Typical Stainless Steel Sidewall Termination of Air and Vent Models 151 - 601 w/Field Supplied Fittings, Utilizing 90° Elbow Intake

TO BOILER
INTAKE AIR
CONNECTION
FROM BOILER
VENT PIPE
CONNECTION	12" MIN
	15" MAX
	12" MIN

BIRD SCREEN

GRADE OR

SNOW LINE

Figure 4-2AAlternate PVC/CPVC Sidewall Termination Models 151 - 801 w/Field Supplied Fittings

12" (305 MM) MIN

GRADE OR

SNOW LINE

NOTICE PVC/CPVC or ABS is acceptable air inlet pipe material.

5.Maintain clearances as shown in FIG.’s 4-1A thru 4-3B, pages 24 thru 26. Also maintain the following:

a.Vent must terminate:

•At least 6 feet from adjacent walls.

•No closer than 12 inches below roof overhang.

•At least 7 feet above any public walkway.

•At least 3 feet above any forced air intake within 10 feet.

•No closer than 12 inches below or horizontally from any door or window or any other gravity air inlet.

b.Air inlet must terminate at least 12 inches above grade or snow line; at least 12 inches below the vent termination; and the vent pipe must not extend more than 24 inches vertically outside the building as shown in FIG. 4-1B.

c.Do not terminate closer than 4 feet horizontally from any electric meter, gas meter, regulator, relief valve, or other equipment. Never terminate above or below any of these within 4 feet horizontally.

6.Locate terminations so they are not likely to be damaged by foreign objects, such as stones or balls, or subject to buildup of leaves or sediment.

Figure 4-3AClearance to Gravity Air Inlets

TO BOILER

INTAKE AIR

CONNECTION

FROM BOILER

VENT PIPE

CONNECTION

BIRD SCREEN

12" (305 MM) MIN 15" (381 MM) MAX

12"

MIN.

BIRD SCREEN

12" (305 MM) MIN

VENT / AIR

TERMINATION

12" MIN.

12" MIN.

GRADE OR SNOW LINE

25