UTICA BOILERS JE Installation Manual download pdf (Page 11)

Flue Connection And Venting - Continued

Simple vent system consists of 6-foot minimum vertical

rise immediately off draft-hood, as shown in Figure 3.

Terminate this vertical ue above building roof with suitable

rain cap at least 2 feet above surrounding obstructions,

i.e., parapets, adjacent buildings, penthouses, etc. This

type of vent system applies to single draft-hood boilers

ONLY, and has limited practical use, because it is restricted

to single-story boiler rooms and because of problems

encountered in roof ashing.

Vertical venting system shown in Figure 3 cannot be used

on multiple-base boilers because of physical interference of

multiple rain caps.

For multiple-base boilers, pant leg venting system shown in

Figure 4 can be applied, if desired.

Vent system shown in Figure 5 is commonly used. With

vent diameters sized to match ue outlets, minimum

vertical rise of 4 feet above draft-hood must be maintained

for proper operation. Refer to Chart 1 for typical chimney

sizes. Requirements for this type of system are: an

adequately sized chimney, adequate combustion air, and

outlet end of horizontal run must be no more than 6 feet

from chimney with no more than one 90° elbow in this run

as shown.

For installations where required minimum 4-foot vertical

rise cannot be maintained, diameter of horizontal run must

be increased one inch for each foot of riser reduction. This

procedure will reduce resistance of system, and if chimney

is adequate boiler will vent properly.

IMPORTANT: Extend chimneys at least 2 feet above any

object within radius of 15 feet, including roof.

VENT INSTALLATION

Figure 3

Figure 5

Figure 4

IMPORTANT: Extend chimneys at least 2 feet above any

object within radius of 15 feet, including roof.

IMPORTANT: Extend chimneys at least 2 feet above any

object within radius of 15 feet, including roof.

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 35 36

No comments

UTICA BOILERS JE Installation Manual Page 11