Monessen Hearth DFS32C Installation Instructions Manual

Monessen Hearth DFS32C Installation Instructions Manual

Dfs series vent-free fireplace system
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DFS Series Vent-Free
Fireplace System

Installation Instructions

Models:
DFS32C, DFS36C, DFS42C
WARNINGS
If the information in this manual is 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.
710533
VFH cover
This is an unvented gas-fired heater. It uses air
(oxygen) from the room in which it is installed.
Provisions for adequate combustion and
ventilation air must be provided. Refer to page
7.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future refer-
ence.
71D0532 1/11 Rev. 10

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Summary of Contents for Monessen Hearth DFS32C

  • Page 1: Installation Instructions

    DFS Series Vent-Free Fireplace System Installation Instructions Models: DFS32C, DFS36C, DFS42C WARNINGS If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. 710533 VFH cover –...
  • Page 2: Table Of Contents

    CONTENTS DFS Series Vent Free Fireplace Thank you and congratulations on your purchase of a Majestic 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. Flame Appearance .............
  • Page 3: Important Safety Information

    IMPORTANT SAFETY INFORMATION DFS Series Vent Free Fireplace OWNER INSTALLER Please leave these instructions with the appliance. Please retain these instructions for future reference. • Any change to this heater or its controls can be dangerous. • Improper installation or use of the heater can cause serious injury or death from fire, burns, explosion or carbon monoxide poisoning.
  • Page 4: Code Approval

    IMPORTANT SAFETY INFORMATION and CODE APPROVAL DFS Series Vent Free Fireplace 21. During manufacturing, fabricating and shipping, various THIS APPLIANCE MAY BE INSTALLED IN AN components of this appliance are treated with certain AFTERMARkET, PERMANENTLY LOCATED, oils, films or bonding agents. These chemicals are not MANUFACTURED (MOBILE) HOME, WHERE NOT harmful but may produce annoying smoke and smells PROHIBITED BY LOCAL CODES.
  • Page 5: Product Features

    PRODUCT FEATURES DFS Series Vent Free Fireplace Gas Specifications Input BTU/hr Model Fuel Control Max. Min. DFS32NVC Nat. Millivolt 38,000 26,000 DFS32PVC Millivolt 34,000 26,000 DFS36NVC Nat. Millivolt 38,000 26,000 DFS36PVC Millivolt 34,000 26,000 DFS42NVC Nat. Millivolt 38,000 26,000 Screen DFS42PVC Millivolt 34,000...
  • Page 6: Fireplace And Framing Dimensions

    FIREPLACE and FRAMING DIMENSIONS DFS Series Vent Free Fireplace Min. Rough Opening  Depth 1/2”  or 5/8” R - Min. Rough Opening Width Min. Rough 1 ”  Opening (32 mm) Height 2 ” (64 mm) Figure 2 - Fireplace and Framing Dimensions ”  (33 mm) Ref. DFS32 DFS36 DFS42 37” (940 mm) 41” (1041 mm) 47”...
  • Page 7: Preinstallation Information

    PREINSTALLATION INFORMATION DFS Series Vent Free Fireplace Do not install the heater: Gloves are recommended when handling • Where curtains, furniture, clothing, or ceramic fiber logs to prevent skin irritation other flammable objects are less than from loose fibers. Logs are fragile — handle 42"...
  • Page 8: Installation Information

    INSTALLATION INFORMATION DFS Series Vent Free Fireplace FIREPLACE LOCATION Carefully select the best location for installation of your unvented fireplace. The following factors should be taken into consideration. • Clearance to side wall, ceiling, woodwork and window or other combustibles. Refer to “Clear- ances”...
  • Page 9: Clearances

    INSTALLATION INFORMATION DFS Series Vent Free Fireplace The dimensions shown in Figures 4, 5 and 6 and defined in the fireplace manufacturer's instructions are minimum clearances to maintain when installing this heater. Left and right clearances are determined when facing the front of the heater.
  • Page 10: Fireplace Installation

    FIREPLACE INSTALLATION DFS Series Vent Free Fireplace If unit is to be “built in,” fireplace framing can be built before or after the appliance is set in place. BE SURE THAT ALL PACkING MATERIAL HAS BEEN REMOVED FROM THE UNDERSIDE OF THE UNIT PRIOR TO SETTING THE FIREBOX IN PLACE.
  • Page 11: Connect The Gas

    FIREPLACE INSTALLATION DFS Series Vent Free Fireplace CONNECT THE GAS NOTICE: A qualified gas appliance installer must connect the heater to the gas supply. Consult all local codes. Use new black iron or steel pipe. Internally tinned copper or copper tubing can be used per National Fuel Code, section 2.6.3, providing gas meets hydrogen sulfide limits, and where permitted by local codes.
  • Page 12: Checking Gas Pressure

    CHECk GAS PRESSURE and ELECTRICAL INSTALLATION DFS Series Vent Free Fireplace When tightening the joint to the valve, hold the valve securely to prevent movement. Test all gas joints from the gas meter to the heater valve for leaks using a gas analyzer or soap and water solution after completing connection.
  • Page 13: Electrical Installation

    ELECTRICAL INSTALLATION DFS Series Vent Free Fireplace ODS Pilot On/Off Switch Pilot Wall Switch Valve On/Off Switch Spade Terminal TH = 3 TP = 1 TP/TH = 2 Figure 11 - Wiring Diagram FP2112 Switch Optional Wall Switch or Remote Receiver Label all wires prior to disconnection when servicing controls.
  • Page 14: Connect Remote Receiver

    ELECTRICAL INSTALLATION DFS Series Vent Free Fireplace CONNECT REMOTE RECEIVER THESE INSTRUCTIONS SUPERCEDE THE SECTION ENTITLED “HEARTH MOUNT” IN THE MILLI-VOLT HAND-HELD REMOTE INSTRUCTIONS SUPPLIED WITH THE REMOTE. Figure 12 1. Remove cover on control panel to show opening for remote receiver.
  • Page 15: Final Installation

    FINAL INSTALLATION DFS Series Vent Free Fireplace SCREEN REMOVAL Remove fireplace screen frame panel by pushing screen frame panel up and out. Figure 13 Do not operate the unit without the screen frame panel and canopy installed. Canopy Figure 13 - Remove Fireplace Screen Frame Panel Fireplace...
  • Page 16: Blower Installation

    BLOWER INSTALLATION DFS Series Vent Free Fireplace FORCED AIR kIT (BLOTMC) If you are installing the forced air blower kit, refer to the installation instructions provided with the kit. The firebox must be connected to main power supply at time of firebox installation. The electrical connections must be made before the firebox is framed and enclosed in the finished walls.
  • Page 17: Log Placement

    LOG PLACEMENT DFS Series Vent Free Fireplace Before you begin — This unit is supplied with six (6) ceramic fiber logs. Do not handle these logs with your bare hands. Always wear gloves to prevent skin irritation from ceramic fibers. After handling the logs, wash your hands gently with soap and water to remove any traces of fibers.
  • Page 18: Log Placement

    LOG PLACEMENT DFS Series Vent Free Fireplace Left Base Log 3. Place left base log (#3) on two pins on left side of grate. Figure 19 LG674 Figure 19 - Place Left Base Log 4. Place right front log (#4) on two pins on bottom right side of grate.
  • Page 19: Rock Wool Placement

    LOG PLACEMENT DFS Series Vent Free Fireplace 6. Place right top log (#6) on two pins to the left of right base log. Figure 22 LG685 Right Top Log Figure 22 - Place Right Top Log LG685 PLACING ROCk WOOL DFS Right top log After placing logs, place TPB18-RW (Rock Wool) in dime-size pieces evenly across the burner surface in between the logs.
  • Page 20: Flame Appearance

    FLAME APPEARANCE DFS Series Vent Free Fireplace Flames from the pilot, front and rear burner should be visually checked as soon as the heater is installed. In addition, periodically check the flames visually during operation. CHECk THE PILOT FLAME The pilot flame must always be present when the heater is in operation. It should just touch the top of the thermocouple tip for natural.
  • Page 21: Operating Instructions

    OPERATING INSTRUCTIONS DFS Series Vent Free 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 22: Milli-Volt Control Lighting Instructions

    OPERATING INSTRUCTIONS DFS Series Vent Free Fireplace MILLI-VOLT CONTROL LIGHTING INSTRUCTIONS 1. STOP! Read the safety information label. 2. Make sure the manual shutoff valve is fully open. 3. This gas log set is equipped with an ignition device (piezo) which automatically lights the pilot. If piezo ignitor does not light the pilot, refer to instructions for “Match Lighting Instructions,”...
  • Page 23: Match Lighting Instructions

    OPERATING INSTRUCTIONS and MAINTENANCE DFS Series Vent Free Fireplace MATCH LIGHTING INSTRUCTIONS 1. Remove any items necessary for easy access to the pilot (for example: logs, screens, etc.). 2. Follow appropriate lighting instructions found previously. Instead of pushing and releasing the piezo button, light a match and hold the flame to the end of the pilot and ignite the pilot.
  • Page 24: Troubleshooting

    TROUBLESHOOTING DFS Series Vent Free Fireplace NOTE: All troubleshooting items are listed in order of Turn appliance OFF and allow to cool before servicing. Only a qualified operation. service person should service and repair the heater. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY 1.
  • Page 25 TROUBLESHOOTING DFS Series Vent Free Fireplace If the gas quality is bad, your pilot may not stay lit, the burners may produce soot and the heater may backfire when lit. If the gas quality or pressure is low, contact your local gas supplier immediately. REMEDY POSSIBLE CAUSE OBSERVED PROBLEM...
  • Page 26: Replacement Parts

    REPLACEMENT PARTS DFS Series Vent Free Fireplace Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury. DFS Firebox 710533 VFH firebox parts Ref.
  • Page 27: Logs

    REPLACEMENT PARTS DFS Series Vent Free Fireplace DFS Logs 710532 DFS log parts Ref. Description qty. DFS32 DFS36 DFS42 1. Rear Log - #1 70D0031 70D0031 70D0221 2. Right Base Log - #2 70D0032 70D0032 70D0222 3. Left Base Log - #3 70D0033 70D0033 70D0223...
  • Page 28: Burner

    REPLACEMENT PARTS DFS Series Vent Free Fireplace DFS Milli-volt Control Ref. Description qty. DFSNVC DFSPVC 1. Piezo Igniter 14D0503 14D0503 710533 2. Piezo Wire 00K0632 00K0632 VFH Burner parts 3. Burner 70D0010 70D0010 4. Control Valve 14D0467 14D0468 5. Injector 70D0064 57D0680 6.
  • Page 29: Optional Accessories

    OPTIONAL ACCESSORIES DFS Series Vent Free Fireplace OPTIONAL EqUIPMENT FORCED AIR kIT If you are installing the forced air kit, Model BLOTMC, see the installation instructions provided with the kit for electrical wiring requirements, or the blower installation section. The firebox must be con- nected to main power supply at time of firebox installation.
  • Page 30: Trim Installation

    TRIM INSTALLATION DFS Series Vent Free Fireplace 1. Remove top and bottom louver assemblies by disengaging hooks. Pull assemblies up and away from unit. Figure 28 FP2454 Figure 28 2. Remove canopy by removing screws and pulling canopy away from unit. Figure 29 FP2454 3.
  • Page 31: Trim Installation

    TRIM INSTALLATION DFS Series Vent Free Fireplace Top Trim Piece Side Trim 5. Set left and right side piece of trim kit in place on unit. Piece Lean the top of each piece away from the unit and Top Trim towards you in order to install top trim kit piece.
  • Page 32: Outside Combustion Air

    OUTSIDE COMBUSTION AIR DFS Series Vent Free Fireplace COMBUSTION AIR 1. Locate combustion air assembly at an exterior location which is not likely to be accidentally blocked in any manner. Locate assembly a min. of 12" above the snow line to prevent blockage by snow accumulation.
  • Page 33: Outside Combustion Air

    OUTSIDE COMBUSTION AIR DFS Series Vent Free Fireplace The use of outside air for combustion is optional unless required by building codes. It is only neces- sary to supply outside combustion air to one side of the fireplace. Use the model AK4 combustion air kit.
  • Page 34 OUTSIDE COMBUSTION AIR DFS Series Vent Free Fireplace 7. If the duct is the insulated type, push the insulation back from one end of the duct approximately 2". Figure 40 8. Slip the exposed end of the duct over the starting collar on the fireplace.
  • Page 35: Warranty

    DFS Series Vent Free Fireplace LIMITED LIFETIME WARRANTY POLICY LIFETIME WARRANTY The following components are warranted for life to the original owner, subject to proof of purchase: Firebox, Combustion Chamber, Heat Exchanger, Grate and Stainless Steel Burners. FIVE YEAR WARRANTY The following components are warranted five (5) years to the original owner, subject of proof of purchase: Vent Free Ceramic Fiber Logs and Aluminized Burners.
  • Page 36 MHSC 149 Cleveland Drive • Paris, Kentucky 40361 www.mhsc.com...

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