Superior Fireplaces DRT4000-C Series Installation And Operation Instructions Manual page 32

Innovative Hearth Products
DRT4000-C & DRT4200-C Series Direct-Vent Gas Fireplaces
Install the Horizontal Termination Vent System
These instructions should be used as a guideline and do not supersede local codes in any way. Install venting according to local codes, these
instructions, the current National Fuel Gas Code (ANSI-Z223.1) in the USA or the current standards of CAN/CGA-B149.1 in Canada.
Ensure clearances are in accordance with local installation codes and the requirements of the gas supplier.
Dégagement conforme aux codes d'installa tion locaux et aux exigences du foumisseunde gaz.
Horizontal vent systems terminate through an outside wall. Building Codes limit or prohibit terminating in specific areas (Table 7, Page 14).
The following figures and their associated horizontal vent tables illustrate the various configurations that are possible for use with these fireplaces.
Secure Vent pipe is shown in these figures; Secure Flex
®
vertical and horizontal length parameters for a variety of applications. For more information on connecting the vent pipe, see Page 24.
Assure that adequate space between the bottom of the horizontal run and the attic is provided so that blown in insulation does not contact the vent.
Figure 23 - Typical Horizontal Vent Installation
Building
Support
Framing
SV4.5E90
Elbow
Vertical
Rise
1. Analyze the vent route and determine the number of vent sections and elbows required—See Effective Vent Length on Pages 24 and 26 for
more information. Plan the venting so that a joint does not occur in the ceiling or roof joists. Allow for elbows (Figure 15C, Page 24). Maintain
clearances to combustibles equal to or greater than minimum specified in these instructions (Page 27).
2. Frame the exterior wall opening—Locate the center of the vent outlet on the exterior wall (Table 10, Page 18). Cut and/or frame an opening,
10-1/2 x 12-1/8" (267 x 308 mm) inside dimensions, about this center.
3. Frame the ceiling opening—If the vertical route is to penetrate a ceiling, use plumb line to locate the center above the fireplace. Cut and/or
frame an opening, 10-1/2 x 10-1/2" (267 x 267 mm) inside dimensions, about this center (Figure 18, Page 28).
4. Attach the vent components to the fireplace—See Connecting the vent pipe on Page 24.
5. Attach the vent components to each other—See Connecting the vent pipe on Page 24.
6. Install the firestop/spacer at the ceiling—When using Secure Vent
use SF4.5VF firestop/spacer. If there is living space above the ceiling level, the firestop/ spacer must be installed on the bottom side of the
ceiling. If attic space is above the ceiling, the firestop/spacer must be installed on the top side of the joist. Route the vent sections through the
framed opening and secure the firestop/spacer with 8d nails or other appropriate fasteners at each corner.
Maintain 1" (26 mm) clearance to combustibles, framing members, and attic or ceiling insulation when running vertical chimney sections.
7. Support the vertical run sections—On the vertical run, support the venting system every 8 ft (2.4 m) above the fireplace vent outlet with field
provided support straps (Plumber's tape). Attach the straps to the vent pipe and secure to the framing members with nails or screws (Figure
19, Page 28).
32
®
Support
Brackets
Ceiling
Firestop/Spacer
Vertical Vent
pipe may also be used. A table summarizes each configuration's minimum and maximum
Horizontal / Inclined Run
SV4.5L6/12/24/36/48
Support bracket spacing
every 5 ft (1.52 m)
NOTE:
4245 series models require 1
foot section before elbow.
Fireplace
, use SV4.5VF firestop/spacer at ceiling joists; when using Secure Flex
®
Vent Sections
Installation
901032-00B, 07/2020
Termination
Exterior
Wall
Termination
,
®