Inca Metal Cutting DCF36-LIGHT Installation And Operating Instruction page 27

USE OF SEALANT
Sealant is required on vent system joints, except Metal-Fab Sure-Seal direct vent system joints
(figure 7). On longer vent runs, especially vertical runs, sealant will ensure that the combustion air
enters from outdoors, and not through the vent joints. Use high temperature sealant, available from
local suppliers, on the inner pipe joint, applying the sealant around the outside of the male part of the
vent. A bead of silicone should be used on the outside of the joint after assembly to seal the supply
air. If the venting is disconnected for servicing, be sure to follow above instructions for resealing
venting when reconnecting to system.
FIGURE 7
VENT RESTRICTOR INSTALLATION
VENT RESTRICTOR
To fasten the Restrictor Plate to the ceiling of the firebox:
1/. Remove the 2 screws that are holding the heat shield in place in the top of the firebox
2/. Align holes in the Restrictor that match the required degree of restriction
Apply RTV high temperature
sealant around male pipe.
Vent Configuration Restrictor Size
SEE PAGE 26
SEE PAGE 26
SEE PAGE 26
Heat shield screws
Inside top of firebox
looking up.
60%
40%
20%
Page 27 of 57