Vermont Casting 36CDVTRN 사용자 설명서

11

Termination clearances for buildings with combustible and noncombustible exteriors. 

Combustible 

  6"(152mm)
Noncombustible 

  2"(50mm)

Combustible 

  6"(152mm)
Noncombustible 

  2"(50mm)

  12"(305mm)

H = 24"(610mm)
J = 20"(508mm)

      

C = Maximum depth of 48"

       (1219mm) for recessed 

       location.

       

D = Minimum width for back wall 

       of a recessed location.

       Combustible 38"(965mm)

       Noncombustible 24"(610mm)
E = Clearance from corner in 

       recessed location.

       Combustible 6"(152mm)

       Noncombustible 2"(50mm)

Canadian Installations:
Venting system must be installed in accordance with the 
current CSA-B149.1 installation code.
USA Installations:
The venting system must conform with local codes and/
or the current National Fuel Gas code ANSI Z223.1/
NFPA 54.
Only venting components manufactured by CFM Corpo-
ration can be used in Direct Vent systems. 

Before joining the flex vent pipe to the unit, apply a 
bead of high temperature sealant* (provided) to the 4” 
pipe exiting the fireplace. Secure flex vent pipe in place 
with a hose clamp (provided).
*Be sure the flex pipe overlaps at least 1” (25 mm) onto 
the collars of the fireplace and termination. If the ter-
mination has an internal bead, be sure to overlap and 
secure 1” (25 mm) past the bead.

584-15

Fig. 8  Termination clearances.

* Be sure the vent is actually crushed before proceed-
ing. Apply a tug to be sure the vent will not slip off the 
collars.
Repeat process with 7” flex vent pipe. The same proce-
dure must be performed on the vent side.

FP1471

flex vent

Hose Clamp

Apply High Tempera-

ture Sealant

FP1471a

Fig. 9  Apply high temperature sealant to 4” and 7” pipes.