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Top Vent - Vertical Termination (continued)
Flue Restrictor Instructions
1. Remove the exhaust shield. See Figure 4.16.
2. Orientate and align the two pieces of the flue restrictor
as shown in Figure 4.17.
3. Refer to Table 4.1 and Figure 4.17 to match the amount
of vertical you have in the system and determine the
appropriate position to set the flue restrictor. In Table
4.1, "NA" indicates that a flue restrictor is not used.
4. Center the two flue restrictor pieces on the vent at the
setting selected in step 3 and secure in place by using
two self-tapping screws. See Figure 4.16.
5. Reinstall the exhaust shield.
REMOVE EXHAUST SHIELD
Figure 4.16
TO BREAK APART
BEND HERE
Note: If the DVP-2SL or DVP-SLP24 adapter is used with SLP pipe, you MUST subtract one number from Table 4.1.
Example: Top vent 40 ft vertical with DVP pipe = 3-4
Top vent 40 ft vertical with SLP pipe = 2-3
Figure 4.17 Setting the Flue Restrictor
Majestic • MER36N, MER36L, MER42N, MER42L Installation Manual • 2595-980 Rev. B • 5/23
FLUE RESTRICTOR INSTALLED
TOP VENTED APPLIANCE
REINSTALL EXHAUST SHIELD
ALWAYS USED WITH THE
HOLES TO THE RIGHT
ALWAYS USED WITH THE
HOLES TO THE RIGHT
Model
Vertical
4 ft.
8 ft.
MER36
MER42
15 ft.
20 ft.
MER36
25 ft.
MER42
MER36
30 ft.
MER42
MER36
35 ft.
MER42
MER36
40 ft.
MER42
Table 4.1
1
2
3
4 5
1
2
3
4 5
TOP VENT
REAR VENT
NG
Propane
NG
1-1
NA
NA
2-2
1-2
1-1
3-2
3-2
2-2
3-2
3-2
3-2
3-3
3-3
3-3
3-2
3-2
3-2
3-3
3-3
3-3
3-2
3-2
3-2
3-3
3-3
3-3
3-2
3-2
3-2
3-3
3-3
3-3
3-2
3-2
3-2
FLUE RESTRICTOR INSTALLED
REAR VENTED APPLIANCE
REINSTALL EXHAUST SHIELD
1
2
3
4 5
1
2
3
4 5
FLUE RESTRICTOR SET TO 4-4
Propane
NA
NA
1-2
3-2
3-3
3-2
3-3
3-2
3-3
3-2
3-3
3-2
37
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