MHSC 400DVBLNV7CE Installation And Operating Instructions Manual

Dvbl7 series direct vent gas fireplace

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DVBL7 Series
Direct Vent Gas Fireplace
Model: 400DVBLnV7ce
warnInGS
IF the InForMatIon In theSe InStructIonS
are not FoLLoweD exactLy, a FIre
or expLoSIon May reSuLt cauSInG
property DaMaGe, perSonaL Injury or
LoSS oF LIFe.
Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appliance.
what to Do IF you SMeLL GaS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Immediately call your gas supplier from
a neighbor's phone. Follow the gas
supplier's instructions.
• If you cannot reach your gas supplier, call
the fire department.
Installation and service must be performed
by a qualified installer, service agency or
the gas supplier.
warnInG: Improper installation, adjustment,
alteration, services or maintenance can cause
injury or property damage. refer to this manual.
For assistance or additional information
consult a qualified installer, service agency or
the gas supplier.
this appliance is only for use with the type of
gas indicated on the rating plate. this appliance
is not convertible for use with other gases,
unless a certified kit is used.
Installation and
Operating Instructions
Due to hIGh teMperatureS, the appLIance
ShouLD Be LocateD out oF traFFIc anD
away FroM FurnIture anD DraperIeS.
chILDren anD aDuLtS ShouLD Be aLerteD
to the haZarDS oF hIGh SurFace
teMperature anD ShouLD Stay away to
aVoID BurnS or cLothInG IGnItIon.
younG chILDren ShouLD Be SuperVISeD
when they are In the SaMe rooM aS the
appLIance.
cLothInG or other FLaMMaBLe MaterIaL
ShouLD not Be pLaceD on or near the
appLIance.
Keep the rooM area cLear anD Free
FroM coMBuStIBLe MaterIaLS, GaSoLIne,
anD other FLaMMaBLe VaporS anD
LIquIDS.
InStaLLer: Leave this manual with the appliance.
conSuMer: retain this manual for future refer-
ence.
743000
BLDV 7 cover
20301763 5/10 Rev. 2

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Summary of Contents for MHSC 400DVBLNV7CE

  • Page 1: Installation And Operating Instructions

    DVBL7 Series Direct Vent Gas Fireplace Model: 400DVBLnV7ce warnInGS IF the InForMatIon In theSe InStructIonS are not FoLLoweD exactLy, a FIre or expLoSIon May reSuLt cauSInG property DaMaGe, perSonaL Injury or Installation and LoSS oF LIFe. – Do not store or use gasoline or other...
  • Page 2: Table Of Contents

    DVBL7 Series Gas Fireplace contentS thank you and congratulations on your purchase of a MhSc Fireplace. pLeaSe reaD the InStaLLatIon anD operatIon InStructIonS BeFore uSInG the appLIance! IMportant: read all instructions and warnings carefully before starting installation. Failure to follow these instructions may result in a possible fire hazard and will void the warranty.
  • Page 3: Important Safety Information

    IMportant SaFety InForMatIon DVBL7 Series Gas Fireplace InStaLLer owner Please leave these instructions with the appliance. Please retain these instructions for future reference. • read this owner’s manual carefully and completely before trying to assemble, operate, or service this fireplace. •...
  • Page 4: Code Approval

    DVBL7 Series Gas Fireplace IMportant SaFety InForMatIon & coDe approVaL 13. Do not use any solid fuels (wood, coal, paper, card- board, etc.) in this fireplace. Use only the gas type IMportant: indicated on rating plate. pLeaSe reaD the FoLLowInG careFuLLy 14.
  • Page 5: Product Specifications

    The appliance is not approved for closet or recessed installations. Manifold Pressure 3.5” w.c. (8.7 mbar) GaS SpecIFIcatIonS & orIFIce SIZe Max.Input Min. Input Orifice Model Fuel BTU/h BTU/h Size 400DVBLNV7CE Nat. 26,000 21,000 2.5 mm (7.62 kw) (6.2 kw) Ignitor On/Off/RS Switch Hi/Lo Knob FP2073 Off/Pilot/On Knob...
  • Page 6: Fireplace Dimensions & Framing

    pre-InStaLLatIon InForMatIon DVBL7 Series Gas Fireplace Rough 7" Dia. Opening Depth 4" Dia. 1/2” or 5/8” (13 or 16 mm) R - Rough Opening Width Rough Opening Height Figure 2 - Fireplace Specifications and Framing Dimensions Gas Line Access 400DVBL 37Z\zn" (941 mm) 743000 BLDV 7 dims 29" (737 mm) 40B\,"...
  • Page 7: Before You Start

    pre-InStaLLatIon InForMatIon DVBL7 Series Gas Fireplace BeFore you Start FIreBox FraMInG Read this homeowner manual thoroughly and follow all Firebox framing can be built before or after the appliance instructions carefully. Inspect all contents for shipping is set in place. Construct firebox framing following Figure 2 damage and immediately inform your dealer if any damage for your specific installation requirements.
  • Page 8: Fireplace Location

    pre-InStaLLatIon InForMatIon DVBL7 Series Gas Fireplace FIrepLace LocatIon Plan for the installation of your appliance. This includes determining where the unit is to be installed, the vent configuration to be used, framing and finishing details, and whether any optional accessories (i.e. blower, wall switch, or remote control) are desired. Consult your local building code agency to ensure compliance with local codes, including permits and inspections.
  • Page 9: Clearances

    DVBL7 Series Gas Fireplace cLearanceS cLearanceS to coMBuStIBLeS Follow these instructions carefully to ensure safe installation. Failure to follow instructions exactly can create a fire hazard. the appliance cannot be installed on a carpet, tile or other combustible material other than wood flooring. If installed on carpet or vinyl flooring, the appliance shall be installed on a metal, wood or noncombustible material panel extending full width and depth of the appliance.
  • Page 10: Securing Fireplace To Floor Or Framing

    DVBL7 Series Gas Fireplace SecurInG FIrepLace to FLoor or FraMInG The fireplace must be secured to the floor and/or to framing studs as shown in Figure 6. Use two (2) wood screws or masonry/ concrete screws to secure fireplace to the floor. Use four (4) screws to attach fireplace to framing.
  • Page 11: Venting Installation

    The installer must make sure to select the • proper vent system for installation. Before installing vent only MhSc venting components specifically ap- kit, the installer must read this fireplace manual and vent proved and labelled for this fireplace may be kit instructions.
  • Page 12: Termination Location

    3. MHSC assumes no responsibility for the improper  only permitted if veranda, porch, deck or balcony is fully open on a performance of the appliance when the venting system minimum 2 sides beneath the floor: does not meet these requirements.
  • Page 13: Assembling Vent Pipes

    Repeat process with 7” flex vent pipe. The same proce- the current National Fuel Code ANSI Z223.1/NFPA 54. dure must be performed on the vent side. Only venting components manufactured by MHSC may be used in Direct Vent systems. Hose Clamp...
  • Page 14: How To Use The Vent Graph

    DVBL7 Series Gas Fireplace VentInG InStaLLatIon InForMatIon how to uSe the Vent Graph t-LocK pIpeS The Vent Graph should be read in conjunction with the When using unitized T-Lock pipe it is not necessary to following vent installation instructions to determine the re- use sealant on the joints.
  • Page 15: Vent Pipe Clearances To Combustibles

    VentInG InStaLLatIon DVBL7 Series Gas Fireplace horizontal sections of this vent system require a minimum of 3" clearances to combustibles at the top of the flue and 1" clearance at the sides and bottom until the flue penetrates the outside wall. a minimum 1" clearance all around the flue is acceptable at this point of penetration.
  • Page 16: Vertical Sidewall Application

    DVBL7 Series Gas Fireplace VentInG InStaLLatIon 90° VertIcaL SIDewaLL appLIcatIon Minimum clearance between vent pipes and combus- tible materials is 3" (76 mm) on top, and 1" (25 mm) on the bottom and sides unless otherwise noted. refer to page 15 When vent termination exits through foundations less than 20”...
  • Page 17 VentInG InStaLLatIon DVBL7 Series Gas Fireplace VertIcaL SIDewaLL InStaLLatIon - t-LocK LocK pIpe Step 1 Locate vent opening on the wall. It may be necessary to first position the fireplace and measure to obtain hole lo- cation. Depending on whether the wall is combustible or noncombustible, cut opening to size.
  • Page 18: Below Grade Installation

    DVBL7 Series Gas Fireplace VentInG InStaLLatIon Sealing vent pipe and firestop gaps with high tem- perature sealant will restrict cold air being drawn in around fireplace. 4" Flex Step 7 12" Vent Pipe (305 mm) Guide the vent terminations 4” and 7” collard into their respective vent pipes.
  • Page 19: Vertical Through-The-Roof Applications

    VentInG InStaLLatIon DVBL7 Series Gas Fireplace 2. Remove soil to a depth of approximately 16” (406 mm) VertIcaL throuGh-the-rooF below base of snorkel. Install drain pipe. Install window appLIcatIon well (not supplied). Refill hole with 12” (305 mm) of his gas fireplace has been approved for: coarse gravel leaving a clearance of approximately 4”...
  • Page 20: Installation

    VentInG InStaLLatIon DVBL7 Series Gas Fireplace attic Insulation Shield (7DV1aIS) 1 + 2 + 3 + 4 = 270° upper Floor Figure 26 - 11” Maximum Elbow (279 mm) Usage ceiling Installation 12” Min. FP1029 Joist FP1179 Firestop Spacer VertIcaL throuGh-the-rooF Nails (4) InStaLLatIon Figure 28 -...
  • Page 21 VentInG InStaLLatIon DVBL7 Series Gas Fireplace Horizontal Overhang 2 ft.  2 ft. (610 mm)  (610 mm) Min. Min. Lowest Dis- charge Opening roof pitch h (feet) h (mm) Termination Flat to 6/12 Vent Over 6/12 to 7/12 1.25 Over 7/12 to 8/12 Over 8/12 to 9/12 Storm Collar Over 9/12 to 10/12 FP1971...
  • Page 22: Fireplace Installation

    FIrepLace InStaLLatIon DVBL7 Series Gas Fireplace checK GaS type a manual shutoff valve must be installed Use proper gas type for the fireplace you are installing. upstream of the appliance. union tee and If you have conflicting gas type, do not install fireplace. plugged pressure tapping point should be See dealer where you purchased the fireplace for proper installed upstream of the appliance.
  • Page 23: Check Gas Pressure (Millivolt)

    DVBL7 Series Gas Fireplace MILLIVoLt - checKInG GaS preSSure and eLectrIcaL InStaLLatIon 1. Check gas type. The gas supply must be the same as stated on the appliance’s rating decal. If the gas supply is different from the fireplace, Stop! Do not install the appliance.
  • Page 24: Glass Removal

    DVBL7 Series Gas Fireplace GLaSS reMoVaL GLaSS FraMe reMoVaL 1. Remove access panel by lifting up and out. 2. Release two clamps (500 model has three clamps) on bottom of fireplace. Figure 34 3. Tilt glass frame out and lift glass frame up until it clears three tabs on top of fireplace. 4.
  • Page 25: Remote Wall Switch Installation

    reMote waLL SwItch & BLower InStaLLatIon DVBL7 Series Gas Fireplace reMote waLL MounteD SwItch A remote wall switch and up to fifteen (15) feet of 18 Ga. wire may be used with this appliance. Attach the wall switch in a Do not connect wall switch to (110 V) junction box at the desired location on the wall.
  • Page 26: Operating Instructions (Milli-Volt)

    operatInG InStructIonS (MILLI-VoLt) DVBL7 Series Gas Fireplace For your SaFety reaD BeFore LIGhtInG If you do not follow these instruction exactly, a fire or explosion may result causing property damage, personal injury or loss of life. a. This appliance is equipped with a pilot which must be lit with built-in piezo ignitor while following these instructions exactly.
  • Page 27: Lighting Pilot

    operatInG InStructIonS (MILLI-VoLt) DVBL7 Series Gas Fireplace LIGhtInG pILot For the FIrSt tIMe approVeD LeaK teStInG MethoD If using a soap and water You may check for gas leaks with the following methods solution to test for leaks, only: Do not spray solution onto •...
  • Page 28: Lighting Burner

    operatInG InStructIonS (MILLI-VoLt) DVBL7 Series Gas Fireplace LIGhtInG Burner MaIn Burner SwItch The “ON/OFF/RS” switch for the main burner can be found behind door of the fireplace. This switch allows you to turn on and to turn off the main burner without using the gas valve knob. Make sure the button is in the “ON”...
  • Page 29: Final Installation

    DVBL7 Series Gas Fireplace LoG & rocK wooL InStaLLatIon hearth BrIcK pLaceMent Place the hearth brick centered in front of burner and slide back until it hits the stops on the right and left of burner. rocK wooL pLaceMent 1. Place rock wool on burner to provide glowing Burner embers.
  • Page 30 FInaL InStaLLatIon DVBL7 Series Gas Fireplace 5. Place the middle cross log (#6) by matching the rectangular notch on the bottom of this log with the rectangular protrusion of the rear log toward the left. The narrow pointed end will line up between the second left tong and the middle tong on the grate.
  • Page 31: Cleaning And Maintenance

    cLeanInG anD MaIntenance DVBL7 Series Gas Fireplace turn off gas before servicing fireplace. It is recommended that a qualified service technician perform these check-ups at the Thermocouple beginning of each heating season Thermopile Millivolt control Burner, pILot anD controL coMpart- pilot Ment Keep the control compartment, logs, and burner areas...
  • Page 32: Vent System

    cLeanInG anD MaIntenance DVBL7 Series Gas Fireplace Vent SySteM The fireplace and venting system should be inspected before initial use and at least annually by a qualified field service person. Inspect the external vent cap on a regular basis to make sure that no debris is interfering with the airflow.
  • Page 33: Troubleshooting Standing Pilot Ignition

    trouBLeShootInG DVBL7 Series Gas Fireplace StanDInG pILot IGnItIon MILLIVoLt SySteM SyMptoM poSSIBLe cauSe actIon 1. Spark ignitor will A. Open door and check to make sure wire is connected A. Wire disconnected. not light pilot after to ignitor. repeated triggering of B.
  • Page 34 DVBL7 Series Gas Fireplace trouBLeShootInG StanDInG pILot IGnItIon MILLIVoLt SySteM SyMptoM poSSIBLe cauSe actIon 4. Frequent pilot A. Pilot flame may be too high A. Clean and adjust the pilot flame for maximum flame outage problem. or too low, causing pilot impingement on thermocouple.
  • Page 35: Replacement Parts

    repLaceMent partS DVBL7 Series Gas Fireplace FIreBox coMponentS ref. Description qty. 400DVBL Junction Box Assy (not shown) 26D2128K Sheet Metal Base 74D0514 Glass Frame Assy 74D0096K 1763 Control Cover 74D0038K DVBL7 parts accessories / Field Installed options Decorative Mesh Glass Cover BLDV400SD Firebrick Set - Tavern Brown FBBLDV400TB...
  • Page 36: Standing Pilot Millivolt Control

    DVBL7 Series Gas Fireplace repLaceMent partS StanDInG pILot — MILLIVoLt controL 10, 11,12,13 1763 DVBL7 millivolt parts 20301763...
  • Page 37 repLaceMent partS DVBL7 Series Gas Fireplace StanDInG pILot — MILLIVoLt controL ref. Description qty. 400DVBLnV7 400DVBLpV7 1. Gas Valve Assy 37D0117 37D0118 2. Pilot Assy 37D0018 37D0019 2C. Replacement Thermocouple 37D1067 37D1067 2I. Replacement Igniter & Wire 37D1069 37D1069 2T. Replacement Thermopile 37D1068 37D1068 3.
  • Page 38: Logs

    DVBL7 Series Gas Fireplace repLaceMent partS LoGS ref. Description qty. 400DVBL Rear Log #1 74D0059 743000 Top Right Log #2 74D0060 BLDV log parts Front Upper Log #3 74D0061 Right Front Log #4 74D0062 Left Front Log #5 74D0063 Middle Cross Log #6 74D0064 20301763...
  • Page 39: Vertical Venting Components

    VentInG coMponentS DVBL7 Series Gas Fireplace VertIcaL VentInG Description Model number Vertical Vent Termination Kits Vertical Vent Termination w/ Storm Collar 47TLVTK (flashing NOT included) Vertical Vent Termination w/ Storm Collar - 8 pack 47TLVTK/8 (flashing NOT included) Vertical Vent Termination w/ 1/12 - 6/12 Flashing, Storm 47TLVTKA Collar and Ceiling Support Kit Vertical Vent Termination w/ 6/12 - 12/12 Flashing,...
  • Page 40: Horizontal Venting Components

    VentInG coMponentS DVBL7 Series Gas Fireplace horIZontaL VentInG Description Model number Horizontal Vent Termination Kits Rear Vent Hot Touch Termination Kit w/ 10" to 16" 477TLBRTK Adjustable Termination Pipe, Firestop, and Hot Touch Termination w/ Siding Shield Up and Out Side Wall Termination Kit w/ 10" to 16" 47TLSTK Adjustable Termination Pipe, 90°...
  • Page 41 DVBL7 Series Gas Fireplace 20301763...
  • Page 42 DVBL7 Series Gas Fireplace 20301763...
  • Page 43: Warranty

    This warranty is expressly in lieu of other warranties, express or implied, including the warranty of merchant- ability of fitness for purpose and of all other obligations or liabilities. MHSC does not assume for it any other obligations or liabilities in connection with sale or use of the appliance. It states that do not allow limitations on how long an implied warranty lasts, or do not allow exclusion of indirect damage, those limitations of exclusions may not apply to you.
  • Page 44 MhSc 149 Cleveland Drive • Paris, Kentucky 40361 www.mhsc.com...

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