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INSTALLATION
INSTRUCTIONS
DIRECT VENT
™
MERIT PLUS SERIES
VENTED GAS FIREPLACE HEATERS - DIRECT VENT MODELS
This appliance may be installed in an aftermarket perma-
P/N 850,043M REV. F 09/2008
nently located, manufactured home (USA only) or mobile
home, where not prohibited by local codes. This appliance
is only for use with the type of gas indicated on the rating
MODELS
plate. This appliance is not convertible for use with other
gases, unless a certified kit is used.
Ms illivolt Models Elec
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PACKAGING Both millivolt and electronic versions of these TABLE OF CONTENTS appliances are listed by Omni-Test Labora- The assembled vented gas fireplace heater is Packaging ........................................ page 2 tories for installation in bedrooms and mo- packaged with the folowing: bile homes. Introduction ..................................... page 2 General Information ......................... page 2 The Installation must conform to local codes 1 - The logs are packaged in a carto
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Provide adequate clearances around air open- Installations at Altitudes of 0 to 4500 ft.- Cet appareil peut être installé dans un ings and adequate accessibility clearance for maison préfabriquée (É.-U. seulement) Units are tested and approved for elevations service and proper operation. Never obstruct ou mobile déjà installée à demeure si of 0 to 4500 feet (0 to 1372 meters). the front openings of the appliance. les réglements locaux le permettent. Installations at Altitudes above 4500 ft.- C
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WARNING: FAILURE TO COMPLY WITH THE INSTALLATION AND OPERATING INSTRUCTIONS PROVIDED IN THIS DOCUMENT WILL RESULT IN AN IMPROP- ERLY INSTALLED AND OPERATING APPLIANCE, VOIDING ITS WARRANTY. ANY CHANGE TO THIS APPLIANCE AND/ OR ITS OPERATING CONTROLS IS DAN- APPLICATION HORIZONTAL VENT HORIZONTAL VENT VERTICAL VENT GEROUS. IMPROPER INSTALLATION OR (Top Vent (Top Vent USE OF THIS APPLIANCE CAN CAUSE RECESSED Application) Application) INSTALLATION SERIOUS INJURY OR DEATH FROM FIRE, HORIZONTAL VE
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To provide for the lowest possible shelf surface Massachusetts And New York City, NY Vertical Vent Termination Clearances the venting attached to the top vent should be Requirements Terminate single vent caps relative to building routed in a way to minimize obstructions to the These appliances are approved for installation components according to Figure 4. use of the space above the appliance. Do not insulate the space between the appliance and in the following USA locations listed in the Term
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TYPICAL INSTALLATION SEQUENCE Horizontal Vent Termination Clearances The typical sequence of installation follows, Combustible Projection however, each installation is unique resulting in 2-1/2 inches or less in length variations to those described. All horizontal terminations Combustible Projection greater may be located as close as than 2-1/2 inches in length 6” (152mm) to any See the page numbers references in the follow- (non-combustible and Ventilated ing steps for detailed procedures. comb
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V EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS NOTE: Local Codes Or Regulations May Require Different Clearances. * See Item D in the Text Below. P N N NOTE: Location Of The Vent Termination Center Line Exterior Wall Inside of Termination Must Not Interfere With Access To The Corner Detail O Electrical Service. *18” V V G Q Horizontal Termination V 18” Ventilated Soffit A Inside Corner = 9” in U.S. A = 12” in Canada Detail D H 3 ft. B B D X C A A V V Fixed Operable L V Closed Wi
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FIREPLACE FRAMING SPECIFICATIONS Framing should be constructed of 2 x 4 10-1/2 MA odel No. BCD or larger lumber. (267) i6 n.34 0 9/142 0 3/18 6 1/ 3 MPLDV30 m6 m75 8 19 03 45 1 96 i6 n.30 5 9/1 4432 /18 6 1/ 3 *7 MPLDV35 (178) 5-1/8 m3 m95 0 19 03 45 1 96 (130) **12-1/8 (308) i6 n.44 0 9/142 5 3/13 6 1/ 4 MPLDV40 m0 m12 03 19 16 42 1 109 i6 n.45 5 9/1 4432 /13 6 1/ 4 MPLDV45 m7 m12 15 19 16 42 1 109 D B *9" (229 mm) For MPLDV-35, 40 & 45 **14-1/8" (359 mm) For MPLDV-35, 40 & 45 C 1/2 A A Inche
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FIREPLACE SPECIFICATIONS F G 6 5/8 (168) TOP VIEW 17 E (432) 1 (25.4) 3 5/16 (100 mm) 13 11/64 (335) 10 (254 mm) A B C H D 2 9/32 4 3/4 (58) (121) FRONT VIEW RIGHT SIDE VIEW LEFT SIDE VIEW Unit Dimensions MA odel No. BCDEFGH i2 n.42 0 1/38 7 1/28 0 5/24 4 1/34 0 1/18 9 3/94 7/ 27 1/ MPLDV30 m9 m13 02 94 5 53 3 68 1 72 6 51 0 22 5 69 i2 n.42 0 1/38 7 1/28 0 5/24 9 1/34 5 1/28 4 3/14 2 3/ 27 1/ MPLDV35 m9 m13 02 94 5 50 3 75 4 89 9 64 2 32 1 69 i2 n.42 5 1/48 2 1/28 5 5/34 4 1/44 0 1/28 9 3/14 4 7
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The vent system may not service multiple Step 3. INSTALL THE VENT SYSTEM SV4.5CGV-1 SV4.5FA OR Termination appliances, and must never be connected to a SV4.5FB Flashing General Information flue serving a solid fuel burning appliance. The AND SV4.5SC STORM COLLAR vent pipe is tested to be run inside an enclos- These instructions should be used as a guide- ing wall (such as a chase). There is no require- line and do not supersede local codes in any ment for inspection openings in the enclosing way
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Where required, a telescopic vent section VENT SECTION LENGTH CHART VENT SECTION LENGTH CHART (SV4.5LA) may be used to provide the installer Nominal T T Nominal Section 62142638 4 Section Length 62142638 4 O O Length (inches) with an option in installing in tight and confined (inches) T T Net Section A A 42 -1/212 0-1/22 2-1/32 4-1/ 46-1/ Net Section spaces or where the vent run made up of fixed Length (inches) 42 -1/212 0-1/22 2-1/32 4-1/ 46-1/ L L Length (inches) length pieces develops a joi
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To attach a vent component to the 45 degree This seating position is indicated by the 10 1/2” Min. (267 mm) starter elbow, align the dimpled end over the alignment of the arrow and dimple as shown elbow, adjusting the radial alignment until the in Figure 16. four locking dimples are aligned with the inlet 10 1/2” Min. of the four inclined channels on the collar F. Install firestop/spacer at ceiling - When (267 mm) (refer to Figure 15 ). using Secure Vent, use SV4.5VF firestop/spacer at ceiling j
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H. Frame roof opening - Identify location for Loop the tape around the vent, securing the ends of the tape to the framing. If desired, vent at the roof. Cut and/or frame opening per Storm sheet metal screws #6 x 1/2" length may be Roof Framing Chart and Figure 19. Collar used to secure the support straps to the vent pipe. Refer to Figure 17. H. Change vent direction to horizontal/in- clined run - At transition from or to a horizon- C tal/inclined run, install the SV4.5E45 and SV4.5E90 elbows in
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VERTICAL VENT FIGURES/TABLES Note: Secure Vent (rigid vent pipe) is shown in the figures; Secure Flex (flexible vent pipe) may also be used. WARNING: UNDER NO CIRCUMSTANCES MAY SEPARATE SECTIONS OF CONCENTRIC FLEXIBLE VENT PIPE BE JOINED TOGETHER. Note: It is very important that the horizontal/inclined run be maintained in a straight (no dips) and recommended to be in a slightly elevated plane, in a direction away from the fireplace of 1/4" rise per foot (20 mm per meter) which is ideal, tho
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VERTICAL VENT FIGURES/TABLES (continued) TABLE B *Ceiling H + H Maximum V Minimum 1 Firestop/Spacer V **Wall (SV4.5VF) feet (meters) feet (meters) Firestop/Spacer (1.524) (0.305) 5 1 (3.048) (0.610) 10 2 H (4.572) (0.914) 15 3 (6.096) (1.219) 20 4 H + H = 20 feet (6.096 m) Max. 1 H + H + H = 40 ft. (12.192 m) Max. V 1 1 Example: If 20 feet of (H) horizontal vent run is *When using Secure Flex, Support use Firestop/Spacer needed, then 4 feet minimum of (V) vertical vent Bracket SF4.5VF will be
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D. Frame exterior wall opening - TYPICAL HORIZONTAL VENT INSTALLATION Locate the center of the vent outlet on the Support Horizontal / Inclined Run exterior wall according to the dimensions Building Brackets SV4.5 HT-2 Support shown in Figure 9 on page 8. Termination Framing SV4.5E90 Cut and/or frame an opening, 10-1/2" x 12-1/8" Elbow (267 mm x 308mm) inside dimensions, about this center. SV4.5L6/12/24/36/48 Exterior Wall E. Frame ceiling opening - If the vertical route Vent Sections Ceiling is
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If the terminus of the last section is not within Firestop/Spacer provided with the this distance, use the telescopic vent section termination shown on the exterior side of the wall. It may also be SV4.5LA, as the last vent section. For wall installed on the interior side. SV4.5 HT-2 thicknesses greater than that shown in Figure Termination 28, refer to Table 3 on page 18. This table lists **7" 10-1/2" the additional venting components needed (in (178) (267 mm) **12-1/8" addition to the terminat
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HORIZONTAL VENT FIGURES/TABLES Note: Secure Vent components (rigid vent pipe and terminal) are The SV4.5HF or SF4.5HF firestop provided with each termination can be shown in the figures; Secure Flex components (flexible vent pipe and used as shown in Figure 29 when fitted at the exterior wall adjacent to the terminal) may also be used. termination. Note: Two 45 degree elbows may be used in place of one 90 degree elbow. The same rise to run ratios, as shown in the venting figures for 90 deg
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*Use Firestop/Spacer SV4.5HF or SF4.5HF Example: If 20 feet of (H) TABLE C when using Secure Vent or Secure Flex horizontal vent run is needed, respectively. Use Firestop/Spacer SV4.5HF5 H Maximum V Minimum or SF4.5HF5 when using Secure Vent or then 4 feet minimum of (V) Secure Flex on horizontal vent runs for the (meters) (meters) feet feet vertical vent will be required. MPLDV35/40/45 with a center line lower than 48” (1219 mm) above the fireplace top 5 (1.524) 1 (0.305) wrapper surface. I
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HORIZONTAL VENT FIGURES/TABLES (CONTINUED) **Wall Firestop/Spacer TABLE D H + H Maximum V Minimum H 1 (meters) (meters) feet feet (1.524) 5 1 (0.305) H 1 V* 10 (3.048) 2 (0.610) (0.914) ***Note - When using 15 (4.572) 3 Secure Flex, use **Wall (6.096) (1.219) 20 4 Firestop/Spacer SF4.5VF Firestop/Spacer V + H + H = 40 feet (12.2 m) Max. **Use Firestop/Spacer SV4.5HF or SF4.5HF when 1 + H = 20 ft. (6.096 m) Max. ***Ceiling H using Secure Vent or Secure Flex respectively. Use 1 Firestop/Spacer F
