Empire Comfort Systems MILLIVOLT DVCD32FP30, Руководство по установке, Страница: 21 / 96

38712-2-0719 Page 21
VENTING FIREPLACE - TOP (CONT’D)
Example of possible venting systems using two 90° elbows.
V is listed as minimum vertical dimensions and H1 + H2 is listed
as total of maximum horizontal dimensions. The maximum
vertical and horizontal distances for two 90° elbows as shown in
Figure 33 is 20 feet (6.1 m).
Attention: Refer to Figure 30 for additional venting requirements.
FIRESTOP AT
CEILING LEVEL
SEE GRAPH FOR PERMISSIBLE “H” AND “V” DIMENSIONS
NOTE: H1 AND H2 MUST BE ADDED TOGETHER TO USE CHART
V
H2
H1
figure 33
B
C
A
CENTER OF ELBOW
STRAIGHT OUT
(MINIMUM)
D
C
B
fireplace
series
hard elboW dimensions (inches)
a b c d
dvcd32fP 41-1/2 4-1/2 6-1/2 9-1/8
dvcd36fP 41-1/2 4-1/2 6-1/2 9 1/8
dvcd42fP 43-1/2 4-1/2 6-1/2 9 1/8
fireplace
series
fleX pipe 90 degree bend
dimensions (inches)
a b c d
dvcd32fP 43 4-1/2 6-1/2 9-1/8
dvcd36fP 43 4-1/2 6-1/2 9-1/8
dvcd42fP 45 4-1/2 6-1/2 9-1/8
minimum hole location dimensions for through the wall horizontal
installations with 90 degree elbow off top of fireplace.
figure 34