Monessen Hearth DEB20 Installation And Operating Instructions Manual

Monessen Hearth DEB20 Installation And Operating Instructions Manual

Unvented gas log heater or vented decorative appliance

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UNVENTED GAS LOG HEATER OR
VENTED DECORATIVE APPLIANCE

INSTALLATION AND OPERATING INSTRUCTIONS

Control Type: Manual, Milli-Volt, Thermostat or Hi/Lo Remote Control
This appliance may be installed
in an aftermarket, permanently
located, manufactured (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.
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 8.
MODELS: DEB20, DEB24, DEB30
Natural Gas or Propane/LPG
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.
READ AND SAVE THESE INSTRUCTIONS
WARNINGS
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.

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Summary of Contents for Monessen Hearth DEB20

  • Page 1: Installation And Operating Instructions

    UNVENTED GAS LOG HEATER OR VENTED DECORATIVE APPLIANCE INSTALLATION AND OPERATING INSTRUCTIONS MODELS: DEB20, DEB24, DEB30 Natural Gas or Propane/LPG Control Type: Manual, Milli-Volt, Thermostat or Hi/Lo Remote Control WARNINGS This appliance may be installed in an aftermarket, permanently If the information in this manual is not followed exactly,...
  • Page 2: Table Of Contents

    CONTENTS Electrical Wiring (Milli-volt) ........22 Important Safety Information ........3 Connecting Remote Receiver......23 Getting Started............5 Installing Thermostat Sensor ......23 Product Features and Specifications ....6 Operation of Thermostat Sensor ....... 25 Natural Gas ............6 Log Placement ............26 Propane/LP............6 Placing the Decorative Rock ......
  • Page 3: Important Safety Information

    IMPORTANT SAFETY INFORMATION INSTALLER OWNER Please leave these instructions with the owner. Please retain these instructions for future reference. IMPORTANT Read these instructions carefully before installing or trying to operate this vent-free gas heater. • Any change to this heater or its controls can be dangerous. •...
  • Page 4 IMPORTANT SAFETY INFORMATION Continued from page 3 16. Keep room area clear and free from combustible materi- 24. This appliance must not be used with glass doors in the als, gasoline and other flammable vapors and liquids. closed position. This can lead to pilot outages and severe sooting outside the fireplace.
  • Page 5: Getting Started

    GETTING STARTED MAKE SURE YOU HAVE RECEIVED ALL PARTS: Check your packing list to verify that all listed parts have been received. You should have the following: • Unvented gas log grate/burner assembly • Two (2) Plastic bags containing crushed volcanic rock •...
  • Page 6: Product Features And Specifications

    PRODUCT FEATURES SPECIFICATIONS NATURAL GAS NOTE: An external regulator is required to reduce supply pressure to a maximum of 10 " W.C. (11" W.C. for HI/LO) on natural gas systems operating at higher pressure. Manual Pressure Milli-Volt and T-Stat Pressure Hi/Lo Pressure Regulator Pressure: Setting: 3.0"...
  • Page 7: Ignition Controls

    PRODUCT FEATURES SPECIFICATIONS IGNITION CONTROLS Piezo ignitor allows ignition of the pilot without the use of matches or batteries. Manual control has three (3) positions: - All gas to the gas logs is shut off at the valve. - Valve position to light/maintain a standing pilot. HI/LOW - Variable position corresponding to desired flame height.
  • Page 8: General Installation Information

    GENERAL INSTALLATION INFORMATION CODES Adhere to all local codes or, in their absence, the latest edition of THE NATIONAL FUEL GAS CODE ANSI Z223.1 or NFPA54 which can be obtained from… American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 National Fire Protection Association, Inc.
  • Page 9 GENERAL INSTALLATION INFORMATION Counter Fireplace � � Figure 1 - Example of a Large Room with 1/2 Wall Divider The following formula can be used to determine the maximum heater rating per the definition of unconfined space: BTU/Hr = (L ) Ft x (W) Ft x (H) Ft x 1000 Consider two connecting rooms with an open area between, with the following dimensions:...
  • Page 10: Fireplace And Hearth Dimensions

    The DEB Series unvented room heater may also be installed into a Ventless Firebox Enclosure for Gas Fired Decorative Type Unvented Room Heaters per IAS Requirement No. 2-97 ANSI Z21.91-2001 (typically referred to as a "Universal Firebox"), as long as firebox hearth dimensions meet the minimum hearth dimensions shown below. � Model � DEB20 18" " 27" 17" DEB24 "...
  • Page 11: Placement In A Fireplace With A Restrictive Barrier

    PLACEMENT IN A FIREPLACE WITH A RESTRICTIVE BARRIER IMPORTANT INFORMATION FOR THE INSTALLATION OF THIS GAS LOG SET The following are guidelines for placing a gas log set in a fireplace that has a restrictive barrier along the bottom front opening of the fireplace.
  • Page 12: Clearances And Height Requirements

    CLEARANCES HEIGHT REQUIREMENTS The dimensions shown in Figures 4 through 12 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. When heater is installed into a ventless firebox, minimum clearances, as specified by the ventless firebox manufacturer, must be met.
  • Page 13: Clearances And Height Requirements

    ��������� �� ������� Figure 5 - Measuring Heat Resistant Material HEAT RESISTANT REQUIREMENTS FOR SAFE INSTALLATION MATERIAL MEASUREMENT DEB20 DEB24 and DEB30 12" or more Hood not required. Hood not required. 8" to less than 12" Hood not required. Extend heat resistent material to 12"...
  • Page 14 HEAT RESISTANT REQUIREMENTS FOR SAFE INSTALLATION WITH WOODEN MANTEL, MATERIAL SHELF OR OTHER COMBUSTIBLE PROJECTION MEASUREMENT DEB20 DEB24 and DEB30 12" or more Hood not required. Observe profiles (side Hood not required. Observe profile (side elevations) shown in Figure 7, page 15.
  • Page 15 14" above the opening, and a maximum of 6" at a ������ �� minimum of 20 " above the opening. ��������� �� ������� Figure 7 - Minimum Mantel Clearance with No Hood - DEB20 ��� ��� �� �� �...
  • Page 16 CLEARANCES HEIGHT REQUIRMENTS ��� �� ���� ���� ��������� �������� ��� ���� ��� ������ �� ��������� �� Example: The bottom of the mantel may project from the wall a ������� maximum of 10" at a minimum of 28" above the Figure 9 - Minimum Mantel Clearance with No Hood — DEB24 and DEB30 ��...
  • Page 17: Floor Clearance

    FLOOR CLEARANCE The gas log heater must be installed at least 5" above any combustible flooring material, such as carpeting or tile, which is closer than 14" to the base of the fireplace. The minimum distance must be maintained from the top surface of carpeting, tile, etc.
  • Page 18: Fireplace Preparation

    FIREPLACE PREPARATION BEFORE FULLY INSTALLING THE UNIT: • Turn OFF the gas supply to the fireplace or firebox. • Seal any fresh air vents and/or ash clean-out doors located on the floor or wall of the fireplace. If left unsealed, drafting may cause pilot outage or sooting.
  • Page 19: Installing Vented Applications

    INSTALLING VENTED APPLICATIONS The fireplace and gas logs function as a system. If the fireplace is spilling into the room (check with a match or a smoke stick), reposition the damper clamp until a positive draft is obtained by opening the damper. If negative pressure in home prevents having a positive draft, contact your dealer for assistance.
  • Page 20: Connecting The Gas

    CONNECTING 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 21: Checking Gas Pressure

    CHECKING GAS PRESSURE The heater gas inlet connection is a " NPT at the valve. On all control type units, the inlet connection is on the right side of unit. Connecting directly To connect from the opposite side, route the pipe around the back unregulated propane/LPG tank portion of the unit.
  • Page 22: Electrical Wiring (Milli-Volt)

    ELECTRICAL WIRING (MILLI-VOLT) The milli-volt valve is a self-powered combination gas control THAT DOES NOT REQUIRE 110 VAC TO OPERATE. Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. Pilot On/Off Switch...
  • Page 23: Connecting Remote Receiver

    ELECTRICAL WIRING (MILLI-VOLT) CONNECTING REMOTE RECEIVER Remote THESE INSTRUCTIONS SUPERCEDE THE SECTION Wire ENTITLED “HEARTH MOUNT” IN THE MILLI-VOLT Connectors HAND-HELD REMOTE INSTRUCTIONS SUPPLIED WITH THE REMOTE. 1. Cut cable to length (approximately 12") for placement in the fireplace. 2. Strip back "...
  • Page 24 ELECTRICAL WIRING (MILLI-VOLT) 5. Route wiring harnesses through large hole on side of unit. Mount bracket to side of unit with screw provided. See Figure 6. Attach wiring harness to either TP/TH and TH on control valve or to existing wiring harness with two (2) 0.250" male spade terminals for remote or t-stat option.
  • Page 25: Operation Of Thermostat Sensor

    ELECTRICAL WIRING (MILLI-VOLT) OPERATION OF THERMOSTAT SENSOR 1.Follow millivolt lighting instructions on lighting plate attached to unit or in homeowner’s manual. 2.With control knob in the “ON” position make sure the ON/OFF switch is in the “OFF” position. See Figure 25. 3.The unit is now being controlled by the thermostat sensor.
  • Page 26: Log Placement

    Log #5 should fit on pin on center Figure 26 - Installing Logs Figure 27 - Installing Logs log #2. to Grate (Model DEB20) to Grate (Models DEB24 and DEB30) PLACING THE DECORATIVE ROCK DO NOT sprinkle volcanic rock on the logs, around the pilot, or on or near burners. This may cause sooting.
  • Page 27: Flame Appearance

    FLAME APPEARANCE 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. CHECKING THE PILOT FLAME The pilot flame must always be present when the heater is in operation. It should just touch the top of the ther- mocouple tip for natural.
  • Page 28: Checking Burner Flames

    CHECKING THE BURNER FLAME In normal operation at full rate after 15 minutes, the following flame appearances should be observed: Glowing Embers Figure 32 - Correct Appearance of Rear Flames The left and right rear flames should be yellow and extend 1"-2" above the mid log top surfaces. The yellow flames should not contact the logs.
  • Page 29: Operating Instructions

    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 piezo ignition device which lights the pilot. If piezo is not working properly see “Match Lighting Instructions”, page 33.
  • Page 30: Manual Control Lighting Instructions

    OPERATING INSTRUCTIONS MANUAL CONTROL LIGHTING INSTRUCTIONS STOP! Read the safety information. Make sure the manual shutoff valve is fully open. This heater is equipped with an ignition device (piezo) which automatically lights the pilot. Refer to Figure 33, page 29 for the location of the piezo ignitor and control knob. Push in gas control knob slightly and turn control knob clockwise to the OFF position.
  • Page 31: Milli-Volt/Thermostat Control Lighting Instructions

    OPERATING INSTRUCTIONS MILLI-VOLT THERMOSTAT 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 33.
  • Page 32: Hi/Lo Control Lighting Instructions

    OPERATING INSTRUCTIONS HI/LO REMOTE CONTROL LIGHTING INSTRUCTIONS STOP! Read the safety information. Make sure the manual shutoff valve is fully open. This heater is equipped with an ignition device (piezo) which automatically lights the pilot. See Figure 34 for the location of the piezo ignitor and control knob. Push in gas control knob slightly and turn control knob clockwise to the OFF position.
  • Page 33: Match Lighting Instructions

    OPERATING INSTRUCTIONS CLEANING AND SERVICING 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. 3.
  • Page 34: Troubleshooting

    TROUBLESHOOTING Turn appliance OFF and allow to cool before servicing. Only a qualified service person should service and repair the heater. Note: All troubleshooting items are listed in order of operation. REMEDY OBSERVED PROBLEM POSSIBLE CAUSE 1 Replace ignitor. When ignitor button is pressed, 1.
  • Page 35 TROUBLESHOOTING 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 OBSERVED PROBLEM POSSIBLE CAUSE ODS/pilot lights, but flame...
  • Page 36: Replacement Parts

    REPLACEMENT PARTS BURNER ASSEMBLY � � � �������� �� � � �� �� � � � ����������� ��� ������� �� � � � ������ ������� �� 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.
  • Page 37: Replacement Parts List

    REPLACEMENT PARTS LIST REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. BURNER ASSEMBLY DEB20 DEB24/DEB30 Item Description Natural Propane Natural Propane Common Parts Piezo Ignitor 14D0503 14D0503 14D0503 14D0503 Piezo Wire 00K0632 00K0632 00K0632 00K0632 Front Burner 44D0020K 44D0020K 44D0019K 44D0019K...
  • Page 38: Logs

    REPLACEMENT PARTS LIST REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. LOGS Item Description DEB20 DEB24 DEB30 Back Log 44D1011K 44D1001K 44D1006K � Middle Log 44D1010K 44D1000K 44D1005K Front Log 44D1012K 44D1002K 44D1007K Left Log 44D1003K 44D1008K Top Log 44D1013K 44D1004K 44D1009K �...
  • Page 39 NOTES 44D0060...
  • Page 40: Warranty

    Ceramic Fiber Logs and Aluminized Burners. BASIC WARRANTY Monessen Hearth Systems (MHS) warrants the components and materials in your gas appliance to be free from manufacturing and material defects for a period of two years from date of installation. After installation, if any of the components manufactured by MHS in the appliance are found to be defective in materials or workmanship, MHS will, at its option, replace or repair the defective components at no charge to the original owner.

This manual is also suitable for:

Deb24Deb30

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