XDV Direct Vent Gas Fireplace
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
Inside Corner | Outside Corner | Alcove Applications* |
|
|
| F = |
|
| G = |
| Combustible | |
G | Combustible |
| 6" | (152 mm) |
| 6" (152 mm) | V | Noncombustible | |
|
| 2" | (51 mm) | |
| Noncombustible |
| ||
V |
| F |
| |
2" (51 mm) |
|
|
Balcony - | Balcony - |
with no side wall | with perpendicular side wall |
M | M | |
| ||
V | V | |
| P | |
M = | Combustible & | |
Noncombustible | ||
Combustible & | ||
M = 24" (610 mm) | ||
Noncombustible | ||
P = 20” (508 mm) | ||
12" (305 mm) |
D
C C
V
E
O
E = Min. 6” (152 mm) for
O = 8’ (2.4 m) Min.
No. |
|
|
of Caps | DMin. | CMax. |
1 | 3’ (.9 mm) | 2 x DActual |
2 | 6’ (1.8 m) | 1 x DActual |
3 | 9’ (2.7 m) | 2/3 x DActual |
4 | 12’ (3.7 m) | 1/2 x DActual |
DMin. = # of Termination caps x 3
CMax. = (2 / # termination caps) x DActual
*NOTE: Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions specified for vinyl or
Fig. 17a Termination clearances.
General Information Assembling Vent Pipes
Canadian Installations:
Venting system must be installed in accordance with the current
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.
Flex Vent Pipes
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 piep 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.
*Be sure the flex vent is flat and flush with the flue or outer collar before proceeding. 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.
Apply High Temperature
Sealant
Hose Clamp
FP1471
Fig. 18 Apply high temperature sealant to 4” and 7” pipes.
10009383 | 13 |