Operating instructions
75D0004 1
MLDV Series Gas Fireplace
Install restrictor disc as shown in Figure 29 for vertically
vented applications.
Up to two () restrictor discs may be needed for 40' instal-
lation.
The two () restrictor discs suppled will work for most instal-
lations. If a third disc is needed order Part No. 56D307.
You may use a reducer to 4" x 6B\," or 4" x 7" in vertically
vented applications. If a reducer is used, only one restric-
tor may be used.
FP1967
restrictor disc
Restrictor Disc
Fireplace Collar
FP1967
Figure 29 -
Install Restrictor Disc into Fire-
place Collar
This Gas Fireplace has been approved for,
• Vertical installations up to 40' (1 m) in height. Up to
a 10' (3 m) horizontal vent run can be installed within
the vent system using a maximum of two 90° elbows.
Figure 30
FP1183
max height
FP1183
max height
10' (3 m)
Maximum
10' (3 m)
Maximum
Maximum Height
40' (1 m)
Minimum Height
8' ( m)
Support Straps
Every 3' (914 mm)
Figure 30 -
Support Straps for Horizontal Runs
Maximum Height
40' (1 m)
Minimum Height
8' ( m)
Support Straps
Every 3' (914 mm)
FP1183
• Up to two 45° elbows may be used within the horizontal
run. For each 45° elbow used on the horizontal plane,
the maximum horizontal length must be reduced by 18"
(450 mm).
Example: Maximum horizontal length
No elbows = 10’ (3 m)
1 x 45° elbows = 8.5’ (.6 m)
x 45° elbows = 7’ (.1 m)
• A minimum of an 8' (.5 m) vertical rise is required.