- 21 -
F
O
UR 90° ELBOWS MAX I
F
VERT
ICALLY
TERMINATED
IN
THIS
ZONE.
T
HREE
90°
ELBOWS M
A
X
IF
H
O
R
IZ
O
NTALLY TERMINATED IN THI
S
ZONE.
NOT
E
: IN T
H
IS
Z
O
NE
, MAXIMUM HO
RI
ZON
T
A
L
RU
N
RE
MA
IN
S
24
F
E
E
T
REGARDLESS OF THE
NUMBER OF
90
°
E
L
B
O
WS
US
E
D
ZONE "A"
ZONE "B"
M50 MASTER FLUE VENTING REQUIREMENTS CHART
NOTE: THIS CHART IS APPLICABLE TO BOTH NATURAL GAS AND LPG INSTALLATIONS.
IMPORTANT NOTES: See Figure 15, below.
1. 3 feet maximum horizontal pipe run allowed with a 90
0
elbow connected directly to this fireplace’s flue starter collar.
2. Maximum Vertical Run allowed is 51 feet.
3. Maximum Vent System length allowed is 64 feet.
4. In
Zone “A”
, 24 feet maximum horizontal run allowed with a 4 feet starter section. If the starter vertical section is less
than 4 feet, use the chart and reduce 3 feet for every 90
0
elbow installed after the first 90
0
elbow.
5. In
Zone “B”
, 24 feet maximum
horizontal run allowed only if the
first vertical section connected di-
rectly to the top of this fireplace is
4 feet or longer. Three 90
0
elbows
may be installed anywhere within
the 24 feet horizontal run. No re-
duction in horizontal is required for
the 90
0
elbows used.
HIGH ALTITUDE INSTALLATION
INFORMATION
: Prior to installing at
altitudes higher than 7500, please con-
tact the Mendota technical service de-
partment for specific venting require-
ments and venting restrictions.
V min
H max
0 in.
36"
6 in.
36"
12 in.
9'
18 in.
11'6"
24 in.
14'
36 in.
19’
4 ft. - 40 ft.
24'
Figure 15
Summary of Contents for GREENBRIAR M-50
Page 52: ...52 BURNER FLAMES GENERAL HEIGHT DIAGRAM...
Page 58: ...58 SCALE 3 4 DETAIL A Figure 43 VALVE ASSEMBLY...
Page 63: ...63 NOTES...
Page 64: ...64 NOTES...
Page 65: ...65 NOTES...
Page 66: ...66 NOTES...
