MHSC CDVR33N/PV7 Installation And Operating Instructions Manual

Cdv7 series direct vent gas fireplace
Table of Contents

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Installation and Operating
Instructions
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 may be installed in an aftermarket*,
permanently 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 plate. This appliance
is not convertible for use with other gases,
unless a certified kit is used.
* aftermarket: Completion of sale, not for purpose of
resale, from the manufacturer.
CDV7 SeRIeS
Direct Vent Gas Fireplace
Models:
CDVR33n/pV7;n/pe7, CDVT33n/V7;n/pe7,
CDVR36n/pV7;n/pe7, CDVT36n/V7;n/pe7,
CDVR42n/pV7;n/pe7, CDVT42n/V7;n/pe7,
CDVR47n/pV7;n/pe7, CDVT47n/V7;n/pe7
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.
CDVT
CDVR
693011
CDVRT7 cover
69D3011 11/09 Rev. 6

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Summary of Contents for MHSC CDVR33N/PV7

  • Page 1 CDV7 SeRIeS Direct Vent Gas Fireplace Models: CDVR33n/pV7;n/pe7, CDVT33n/V7;n/pe7, CDVR36n/pV7;n/pe7, CDVT36n/V7;n/pe7, CDVR42n/pV7;n/pe7, CDVT42n/V7;n/pe7, CDVR47n/pV7;n/pe7, CDVT47n/V7;n/pe7 Installation and Operating Instructions waRnInGS CDVT 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.
  • Page 2: Table Of Contents

    ConTenTS pleaSe ReaD The InSTallaTIon & opeRaTInG InSTRuCTIonS BeFoRe uSInG applIanCe. Thank you and congratulations on your purchase of a MhSC fireplace. IMpoRTanT: Read all instructions and warnings carefully before starting installation. Failure to follow these instructions fully may result in a possible fire hazard and will void the warranty.
  • Page 3: Important Safety Information

    CDV7 Series Gas Fireplace IMpoRTanT SaFeTy InFoRMaTIon OWNER INSTALLER Please retain these instructions for future reference. Please leave these instructions with the appliance. • Read this owner’s manual carefully and completely before trying to assemble, operate, or service this fireplace. • Any change to this fireplace or its controls can be dangerous. • Improper installation or use of this fireplace can cause serious injury or death from fire, burns, explosions, electrical shock and carbon monoxide poisoning. This fireplace is a vented product. This fireplace must 4.
  • Page 4: Code Approval

    CDV7 Series Gas Fireplace IMpoRTanT SaFeTy InFoRMaTIon 15. This appliance, when installed, must be electrically IMpoRTanT: grounded in accordance with local codes or in the pleaSe ReaD The FollowInG CaReFully absence of local codes, with the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, It is normal for fireplaces fabricated of steel CSA C22.1.
  • Page 5: Product Specifications

    5.5” w.c. 11.0” w.c. • This appliance is approved to be vented with Simpson- Inlet Maximum 14.0” w.c. 14.0” w.c. Duravent and MHSC Twist-Lock Direct Vent Compo- Manifold Pressure 3.5” w.c. 10.0” w.c. nents. GaS SpeCIFICaTIonS & oRIFICe SIZe Max.Input Min.
  • Page 6: Fireplace & Framing Dimensions

    CDV7 Series Gas Fireplace FIReplaCe DIMenSIonS & FRaMInG Minimum Rough Opening  Depth 5/8” 5/8” 1/2” 1/2” P - Minimum Rough Opening Width Minimum Rough Opening  Height 1 ” 5/8” 1/2” 1/2” 5/8” 15/16” Figure 2 - CDVR Series Fireplace Dimensions CDVR33 CDVR36 CDVR42 CDVR47 33" 37Z\zn" 41" 47"...
  • Page 7 CDV7 Series Gas Fireplace FIReplaCe DIMenSIonS & FRaMInG Minimum Rough Opening  Depth 5/8” 5/8” 1/2” 1/2” Q - Minimum Rough Opening Width Minimum Rough Opening  Height 1 ” 5/8” 1/2” 1/2” 5/8” 15/16” Figure 3 - CDVT Series Fireplace Dimensions CDVT33 CDVT36 CDVT42 CDVT47 33" 37Z\zn" 41" 47"...
  • Page 8: Pre-Installation Information

    CDV7 Series Gas Fireplace pRe-InSTallaTIon InFoRMaTIon BeFoRe you STaRT FIReBox FRaMInG FoR CDVR 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 9: Fireplace Location

    CDV7 Series Gas Fireplace pRe-InSTallaTIon InFoRMaTIon 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.
  • Page 10: Clearances

    CDV7 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. Finish Wall Insulation Board Stud 12" 72"  12” Maximum Minimum Depth Header 8” 13" Side Standoff Wall 6” 7” 2” 13”  5” Minimum 3” Top of Heat Exhaust Vent 6”...
  • Page 11: Securing Fireplace To Floor Or Framing

    CDV7 Series Gas Fireplace SeCuRe FIReplaCe To FlooR oR FRaMInG The fireplace must be secured to the floor and/or to framing studs as shown Drywall Support Tabs (Do Not Use for Framing or in Figure 7. Use two () wood screws Header) or masonry/ concrete screws to secure Framing...
  • Page 12: 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 13: 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  sides beneath the floor: does not meet these requirements.
  • Page 14: Termination Clearances

    Repeat process with 7” flex vent pipe. The same proce- the current National Fuel Code ANSI Z3.1/NFPA 54. dure must be performed on the vent side. Only venting components manufactured by MHSC may be used in Direct Vent systems. Canadian Installations...
  • Page 15: How To Use The Vent Graph

    CDV7 Series Gas Fireplace VenTInG InSTallaTIon InFoRMaTIon TwIST loCK pIpeS When using twist lock pipe it is not necessary to use sealant on the joints. The only areas of the venting system that need to be sealed with high temperature silicone sealant are the sliding joints of any telescopic vent section used in the system.
  • Page 16: Vent Installation

    CDV7 Series Gas Fireplace VenT InSTallaTIon VenT pIpe CleaRanCeS A Minimum 1" C l e a r a n c e t o C o m b u s t i b l e s P e r m i t t e d A l l A Minimum 1"...
  • Page 17: Rear Vent Applications & Installation

    When installed as a rear vent unit this appliance may be (44 mm) Min. vented directly to a termination located on the rear wall behind the appliance. • Only MHSC venting components are approved to be 9B\,” used in these applications (Refer to ‘Venting Compo- (44 mm) Min.
  • Page 18: Vertical Sidewall Applications & Installation

    CDV7 Series Gas Fireplace VenTInG InSTallaTIon Finish Wall Rise Vent Termination FP147 Figure 18 - There must be a 1/2" rise per foot length Top VenT SIDewall applICaTIon Figure 16 - noTe: For all top vent installations where a 90° elbow FP94 Side View of Final Unit Location is the first pipe piece towards a sidewall termination (up...
  • Page 19 CDV7 Series Gas Fireplace VenTInG InSTallaTIon 3 x 90° 3 x 90° Elbows Elbows A + B = 17’ (Max.) FP1176 (5.2m) Figure 20 - 7’6" Maximum three (3) 90° elbows per installation (2.3m) 36" (914mm) Figure 22 - FP1178 Max.
  • Page 20: Vertical Sidewall Installation

    CDV7 Series Gas Fireplace VenTInG InSTallaTIon VeRTICal SIDewall InSTallaTIon - TwIST 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 21 CDV7 Series Gas Fireplace VenTInG InSTallaTIon Step 6 Use appropriate length of pipe sections - telescopic or fixed - and install. The sections which go through the wall are packaged with the starter kit, and can be cut to suit if 4”...
  • Page 22 CDV7 Series Gas Fireplace VenTInG InSTallaTIon Below GRaDe InSTallaTIon Do not back fill around snorkel. When it is not possible to meet the required vent terminal a clearance of at least 4” must be maintained clearances of 1” (305 mm) above grade level, a snor- between the snorkel and the soil.
  • Page 23: Vertical Through-The-Roof

    CDV7 Series Gas Fireplace VenTInG InSTallaTIon • For the minimum height of the vent above the highest VeRTICal ThRouGh-The-RooF point of penetration through the roof refer to Figure 37, InSTallaTIon Page 4. noTe: For all top vent vertical through-the-roof installa- tions, install the supplied cross-bar flue restrictor onto the top edge of the firebox flue adapter.
  • Page 24 CDV7 Series Gas Fireplace VenTInG InSTallaTIon 9. Install storm collar and seal around the pipe. Horizontal Overhang 10. Add additional vent lengths for proper height. Fig- ure 38 11. Apply high temperature sealant to 4” and 7” collars of vertical vent termination and install. 2 ft. ...
  • Page 25: Below Grade Installation

    CDV7 Series Gas Fireplace FIReplaCe InSTallaTIon CheCK GaS Type Use proper gas type for the fireplace you are installing. If you have conflicting gas type, do not install fireplace. See dealer where you purchased the fireplace for proper fireplace for your gas type or con- version kit.
  • Page 26 CDV7 Series Gas Fireplace FIReplaCe InSTallaTIon A manual shutoff valve must be installed Only persons licensed to work with gas upstream of the appliance. Union tee and piping may make the necessary gas plugged 1/8” NPT pressure tapping point connections to this appliance. should be installed upstream of the appliance.
  • Page 27: Check Gas Pressure

    CDV7 Series Gas Fireplace CheCK 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 28: Electrical Installation

    CDV7 Series Gas Fireplace eleCTRICal InSTallaTIon 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. Figure 40. Do circuit.
  • Page 29: Electronic Pilot Ignition Wiring

    CDV7 Series Gas Fireplace eleCTRICal InSTallaTIon eleCTRonIC pIloT IGnITIon wIRInG Do not connect 110-120 VaC to the Remote wall Switch. The appliance will malfunction. Pilot Assembly To Junction Box  Sense  Spark Ignition Module (Synetek)  GREEN WHITE  BLACK MAGENTA #5 BLACK WHITE  Primary - 120V Electronic Valve Transformer Secondary WHITE #3 GRAY #7 BLUE YELLOW...
  • Page 30: Glass Frame Removal

    CDV7 Series Gas Fireplace GlaSS ReMoVal & RoCK wool plaCeMenT GlaSS FRaMe ReMoVal 1. Remove upper and lower louvers. . Release the clamps on the bottom of the fireplace. Figure 46 3. Tilt glass frame out and lift glass frame up until it clears the hook on top of the frame.
  • Page 31: Log Placement

    CDV7 Series Gas Fireplace loG plaCeMenT loG plaCeMenT Figure 48 1. Place rear log (#1) on grate assembly. Log should rest firmly on the two log mounting pins shown. . Place top right log (#) on the rear log. Rest the right back side of the log in the flat area of the rear log.
  • Page 32: Operating Instructions - Millivolt

    CDV7 Series Gas Fireplace MIllIVolT opeRaTInG InSTRuCTIonS 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 33: Lighting Pilot

    CDV7 Series Gas Fireplace MIllIVolT opeRaTInG InSTRuCTIonS 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 • Soap and water solution control body. • An approved leak testing spray •...
  • Page 34: Lighting Burner

    CDV7 Series Gas Fireplace MIllIVolT opeRaTInG InSTRuCTIonS 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 35: Operating Instructions Electronic Ignition

    CDV7 Series Gas Fireplace eleCTRonIC IGnITIon opeRaTInG InSTRuCTIonS FOR yOUR SAFETy READ bEFORE LIGhTING This appliance is equipped with an ignition device If you do not follow these (Piezo) which automatically lights the pilot. Do NOT instructions exactly, a fire or try to light the burner by hand. explosion may result causing B.
  • Page 36: Cleaning And Maintenance

    CDV7 Series Gas Fireplace CleanInG anD MaInTenanCe Turn off gas before servicing fireplace. It is recommended that a qualified service technician perform these check-ups at the beginning of each heating season. BuRneR, pIloT anD ConTRol CoMpaRTMenT Keep the control compartment, logs, and burner areas surrounding the logs clean by vacuuming or brushing at least twice a year.
  • Page 37: Vent System

    CDV7 Series Gas Fireplace CleanInG anD MaInTenanCe VenT SySTeM The fireplace and venting system should be inspected before initial use and at least annually by a quali- fied field service person. Inspect the external vent cap on a regular basis to make sure that no debris is interfering with the airflow.
  • Page 38: Troubleshooting

    CDV7 Series Gas Fireplace TRouBleShooTInG STanDInG pIloT IGnITIon SyMPTOM POSSIbLE CAUSE ACTION 1. Spark ignitor will A. Wire disconnected. A. Open door and check to make sure wire is connected to not light pilot after ignitor. repeated triggering of B. Defective ignitor. B.
  • Page 39 CDV7 Series Gas Fireplace STANDING PILOT IGNITION 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. safety to drop out 5.
  • Page 40 CDV7 Series Gas Fireplace TRouBleShooTInG eleCTRonIC IGnITIon STaRT Check: Line voltage (10VAC) Low voltage transformer (19.5 minimum VAC) 1. Turn gas supply off. ON/OFF switch . Turn ON/OFF switch to “ON” Wiring connections Power to module (4V Normal) Unplug ignition lead and check spark at module Is there a spark across (4VAC normal).
  • Page 41: Replacement Parts

    CDV7 Series Gas Fireplace ReplaCeMenT paRTS FIReBox CoMponenTS (CDVT Series) (CDVR Series) 10,11 69D3011...
  • Page 42 CDV7 Series Gas Fireplace ReplaCeMenT paRTS FIReBox CoMponenTS Item Description qty. CDVR33 CDVR33 CDVR36 CDVT36 CDVR42 CDVT42 CDVR47 CDVT47 Standard Features Junction Box Assy 6D18K 6D18K 6D18K 6D18K 6D18K 6D18K 6D18K 6D18K Black Louver 54D046 54D046 6D0695 6D0695 6D0697 6D0697 6D0699 6D0699 Glass Frame Assy...
  • Page 43: Standing Pilot - Millivolt Control

    CDV7 Series Gas Fireplace ReplaCeMenT paRTS STanDInG pIloT — MIllIVolT ConTRol 11,12,13,14 693011 CDV millivolt parts 69D3011...
  • Page 44 CDV7 Series Gas Fireplace ReplaCeMenT paRTS STanDInG pIloT – MIllIVolT ConTRol Item Description qty. CDV33nV7 CDV33pV7 CDV36nV7 CDV36pV7 CDV42nV7 CDV42pV7 CDV47nV7 CDV47pV7 Gas Valve Assy. 37D0117 37D0118 37D0117 37D0118 37D0117 37D0118 37D0117 37D0118 Pilot Assembly 37D0018 37D0019 37D0018 37D0019 37D0018 37D0019 37D0018 37D0019...
  • Page 45: Electronic Ignition

    CDV7 Series Gas Fireplace ReplaCeMenT paRTS eleCTRonIC IGnITIon Item Description qty. CDV33ne7 CDV33pe7 CDV36ne7 CDV36pe7 CDV42ne7 CDV42pe7 CDV47ne1 CDV47pe7 Gas Valve Assy. 37D0016 37D0017 37D0016 37D0017 37D0016 37D0017 37D0016 37D0017 Pilot Assembly 37D000 37D001 37D000 37D001 37D000 37D001 37D000 37D001 Burner Tube 54D088 54D088...
  • Page 46: Logs

    CDV7 Series Gas Fireplace ReplaCeMenT paRTS loGS Item Description CDVR33/CDVT33 CDVR36/CDVT36 CDVR42/CDVT42 CDVR47/CDVT47 693011 Rear Log 54D011 54D0181 54D0339 54D0339 Right Log 54D0147 54D0116 54D0361 54D0361 cdv log parts Left Log 54D0146 54D0115 54D0360 54D0360 69D3011...
  • Page 47: Vent Components

    CDV7 Series Gas Fireplace VenTInG CoMponenTS VeRTICal VenTInG Description Model number Vertical Vent Termination Kits Vertical Vent Termination w/ Storm Collar 7TDVSKV (flashing NOT included) Vertical Vent Termination w/ Storm Collar - 8 pack 7TDVSKV/8 (flashing NOT included) Vertical Vent Termination w/ 1/1 - 6/1 Flashing, Storm 7TDVSKVA* Collar and Ceiling Support Kit Vertical Vent Termination w/ 6/1 - 1/1 Flashing,...
  • Page 48 CDV7 Series Gas Fireplace VenTInG CoMponenTS hoRIZonTal VenTInG Description Model number Horizontal Vent Termination Kits Rear Vent Hot Touch Termination Kit w/ 10" to 16" 7TBRHTK Adjustable Termination Pipe, Firestop, and Hot Touch Termination w/ Siding Shield Up and Out Side Wall Termination Kit w/ 10" to 16" 7TDVSCTK Adjustable Termination Pipe, 90°...
  • Page 49 CDV7 Series Gas Fireplace 69D3011...
  • Page 50: Massachusetts Requirements

    Massachusetts Residents only — please read and follow these special requirements . approved Carbon Monoxide Detectors. Each carbon noTe ReGaRDInG VenTeD pRoDuCTS monoxide detector as required in accordance with the above This product must be installed by a licensed plumber or gas fitter provisions shall comply with NFPA 70 and be ANSI/UL 034 when installed within the Commonwealth of Massachusetts.
  • Page 51: Lifetime Warranty

    After installation, if any of the components manufactured by MHSC in the appliance are found to be defective in materials or workmanship, MHSC will, at its option, replace or repair the defective components at no charge to the original owner. MHSC will also pay for reasonable labor costs incurred in replacing or repairing such components for a period of two years from date of installation.
  • Page 52: Energuide Efficiencies

    45.9 CDVT33PV7 53.0 CDVT33NE7 47.6 CDVT33PE7 55.4 CDVT36NV7 47.7 CDVT36PV7 53.6 CDVT36NE7 49.7 CDVT36PE7 56.1 CDVT4NV7 56.3 CDVT4PV7 64.3 CDVT4NE7 59.1 CDVT4PE7 67.6 CDVT47NV7 54. CDVT47PV7 6.4 CDVT47NE7 56.6 CDVT47PE7 65.7 MhSC 149 Cleveland Drive • Paris, Kentucky 40361 www.mhsc.com...

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