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Monessen Hearth DLX18 Installation And Operating Instructions Manual

Monessen hearth unvented gas log heater or vented decorative appliance installation and operating instructions.
Also See for DLX18:
Installation and operating instructions manual - 36 pages
UNVENTED GAS LOG HEATER OR
VENTED DECORATIVE APPLIANCE
INSTALLATION AND OPERATING INSTRUCTIONS
MODELS
DLX18/GLX18
DLX24/GLX24
DLX28/GLX28
Natural Gas or Propane/LPG
Control Type:
Manual, Thermostat or Milli-Volt
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.
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
• Immediately call your gas supplier from a
• If you cannot reach your gas supplier, call the fire
Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
READ AND SAVE THESE INSTRUCTIONS
WARNINGS
phone in your building.
neighbor's phone. Follow the gas supplier's
instructions.
department.

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   Summary of Contents for Monessen Hearth DLX18

  • Page 1

    UNVENTED GAS LOG HEATER OR VENTED DECORATIVE APPLIANCE INSTALLATION AND OPERATING INSTRUCTIONS MODELS DLX18/GLX18 DLX24/GLX24 DLX28/GLX28 Natural Gas or Propane/LPG Control Type: Manual, Thermostat or Milli-Volt This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed.

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ... 2 IMPORTANT SAFETY INFORMATION ... 3 GETTING STARTED ... 5 PRODUCT FEATURES AND SPECIFICATIONS ... 6 GENERAL INSTALLATION INFORMATION ... 7 FIREPLACE AND HEARTH DIMENSIONS ... 9 PLACEMENT IN A FIREPLACE WITH A RESTRICTIVE BARRIER... 10 CLEARANCES AND HEIGHT REQUIREMENTS ... 11 FLOOR CLEARANCE ...

  • Page 3: Important Safety Information

    INSTALLER Please leave these instructions with the owner. 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. • Improper installation or use of the heater can cause serious injury or death from fire, burns, explosion or carbon monoxide poisoning.

  • Page 4

    IMPORTANT SAFETY INFORMATION Continued from page 3 16. Keep room area clear and free from combustible mate- rials, gasoline and other flammable vapors and liquids. 17. Unvented gas heaters are a supplemental zone heater. They are not intended to be a primary heating appli- ance.

  • Page 5: 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. • Installation/operating instructions. • Ceramic fiber logs. • Two (2) anchoring screws. •...

  • Page 6

    PRODUCT FEATURES NATURAL GAS MANUAL / T-STAT PRESSURE Regulator Pressure Setting: 3" w.c. Gas Inlet Pressure: Maximum 10 Minimum 5" w.c. Model Number DLX18NV, GLX18NV DLX24/28NM, GLX24/28NM DLX18NT, GLX18NT DLX24/28NT DLX18NV, GLX18NV DLX24/28NV, GLX24/28NV PROPANE / LPG Note: An external regulator is required to reduce supply pressure to a maximum of 13" w. c. MANUAL / T-STAT PRESSURE Regulator Pressure Setting: 10"...

  • Page 7: General Installation Information

    Thermostat control has three (3) positions: OFF - All gas to the gas logs is shut off at the valve. IGN - Valve position to light/maintain a standing pilot. LOW/HI - Variable position corresponding to desired temperature. Both front and rear burners are in operation to provide realistic glow and yellow flame.

  • Page 8

    GENERAL INSTALLATION INFORMATION 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: Consider two connecting rooms with an open area between, with the following dimensions: = 15 Ft., L = 12 Ft., W = 12 Ft., H = 8 Ft.

  • Page 9: Fireplace And Hearth Dimensions

    The LX 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 (typically referred to as a "Universal Firebox"), as long as firebox hearth dimensions meet the minimum hearth dimensions shown below. DLX18/GLX18 DLX24/GLX24 DLX28/GLX28...

  • Page 10: 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 11

    The dimensions shown in Figures 3 through 11 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 12: Clearances And Height Requirements

    TABLE A - Heat Resistant Material Requirements with no Mantel or Combustible Projection Heat Resistant Material Heater in Fireplace or Firebox Figure 5 - Measuring Heat Resistant Material REQUIREMENTS FOR SAFE INSTALLATION DLX18/GLX18 All Models Hood not required. Hood not required. Extend heat resistant material to at least 8" Measure this distance...

  • Page 13

    Figure 6 - Measuring Heat Resistant Material for Mantel Heat resistant material (minimum requirements) with wooden mantel or other combustible projection: To install the heater with a wooden mantel, shelf or other combustible projection above, first measure the heat resistant material shown in Figure 6.

  • Page 14

    CLEARANCES HEIGHT REQUIRMENTS 10" 8" " 6" " " Heat Resistant Material Heater in Fireplace or Firebox Figure 7 - Minimum Mantel Clearance with No Hood — DLX/GLX 18 12" 10" 8" 6" Heat Resistant Material Hood Heater in Fireplace or Firebox Figure 8 - Minimum Mantel Clearance with Hood —...

  • Page 15

    10" and Less Heat Resistant Material 12" Heater in Fireplace or Firebox Figure 9 - Minimum Mantel Clearance with No Hood — DLX/GLX 24 and 28 Figure 10 is an example of an unsafe mantel installa- tion. This mantel projects 4" at 8" above the opening, exceeding the maximum acceptable distance of 2 The mantel also projects 7"...

  • Page 16: 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. Refer to Figure 11. The gas log heater may be installed nearer to the floor if a minimum of 14" of noncombustible material such as slate or marble is installed between the base of the fireplace and the combustible flooring.

  • Page 17: 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. Use a heat resistant sealant. Do not seal the chimney flue damper. INSTALLING VENTED APPLICATIONS Manual and millivolt controlled gas logs may be installed as a vented decorative log set in compliance with ANSI Z21.60 and National Fuel Gas Code, Section 6.6 Since, the gas logs are operated with the damper open, non-combustible material and...

  • Page 18: 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 19: 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 20: Checking Gas Pressure

    CHECKING GAS PRESSURE Connecting directly to an unregulated propane/LPG tank can cause an explosion. 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. DO NOT USE AN OPEN FLAME. Check the gas pressure with the appliance burning and the control set to HIGH.

  • Page 21: Electrical Wiring (milli-volt)

    The milli-volt valve is a self-powered combination gas control THAT DOES NOT USE 110 VAC TO OPERATE. CAUTION Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. Wall Switch On/Off...

  • Page 22

    ELECTRICAL WIRING (MILLI-VOLT) CONNECTING REMOTE RECEIVER THESE INSTRUCTIONS SUPERCEDE THE SECTION ENTITLED “HEARTH MOUNT” IN THE MILLI-VOLT HAND-HELD REMOTE INSTRUCTIONS SUPPLIED WITH THE REMOTE. 1. Cut cable to length (approximately 12") for placement in the fire- place. 2. Strip back "...

  • Page 23: Log Placement

    Before you begin — This unit is supplied with a set of three or four rustic split ceramic fiber logs. Do not handle these logs with your bare hands. Always wear gloves to prevent skin irritation from ceramic fibers. After handling logs, wash your hands gently with soap and water to remove any traces of fibers.

  • Page 24: 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 thermocouple tip for natural.

  • Page 25: Checking The Burner Flame

    CHECKING THE BURNER FLAME In normal operation at full rate after 15 minutes, the following flame appearances should be observed: The rear flames above and behind log #2, and in front of log #3, may be yellow. The flames should extend approximately 2" - 4"...

  • Page 26: Operating Instructions, For Your Safety Read Before Lighting

    OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE LIGHTING A. This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the unit by hand. B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

  • Page 27: Manual Control Lighting 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 28, page 26 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 28: Thermostatic Control Lighting Instructions

    OPERATING INSTRUCTIONS THERMOSTATIC 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 28, page 26 for the location of the piezo ignitor and control knob. Turn control knob clock- wise to the OFF position.

  • Page 29: Milli-volt Control Lighting Instructions

    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 30.

  • Page 30: Match Lighting Instructions

    OPERATING 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 31: Cleaning And Servicing

    Annual inspection and cleaning by your dealer or qualified service technician is recommended to prevent malfunction and/or sooting. Remove fireplace screen. Carefully lower screen from mounting lugs and set aside during cleaning. Refer to instruction manual for installation of screen. DO NOT OPERATE THE UNIT WITH THE SCREEN REMOVED. Remove logs, handling carefully by holding gently at each end.

  • Page 32: Replacement Parts List

    REPLACEMENT PARTS LIST 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. 14D2099...

  • Page 33

    REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. Item Description Common Parts Front Burner Rear Burner Piezo Ignitor Manual Control Control Valve Regulator Valve Main Injector Rear Injector ODS Pilot Assembly Piezo Wire Knob Control T-Stat Control Control Valve Regulator Valve Main Injector Rear Injector ODS Pilot Assembly...

  • Page 34

    REPLACEMENT PARTS LIST REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. Item Description LX Golden Oak Logs Front Log Center Log Rear Log Top Log LX Aged Split Logs Front Log Center Log Rear Log Top Log LX Weathered Oak Logs Front Left Log Front Right Log 1 Center Log...

  • Page 35

    REPLACEMENT PARTS LIST LX Weathered Oak Logs LX Chestnut Oak Logs LX Weathered Split Logs 14D2099...

  • Page 36: Troubleshooting

    TROUBLESHOOTING Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM When ignitor button is pressed, there is no spark at ODS/pilot. Appliance produces unwanted odors. Appliance shuts off during use. Gas odor even when control knob is in OFF position. When ignitor button is pressed, there is spark at ODS pilot, but no ignition.

  • Page 37

    OBSERVED PROBLEM ODS/pilot lights, but flame goes out when control knob is re- leased. One or both burners do not light after ODS/pilot is lit. Burner backfires during com- bustion. Slight smoke or odor during ini- tial operation. Logs appear to smoke after ini- tial operation.

  • Page 38

    NOTES 14D2099...

  • Page 39

    NOTES 14D2099...

  • Page 40

    This warranty is expressly in lieu of other warranties, express or implied, including the warranty of merchantabil- ity of fitness for purpose and of all other obligations or liabilities. Monessen Hearth Systems, Inc. does not assume for it any other obligations or liability in connection with the sale or use of the appliance. In 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.

This manual also for:

Dlx28, Glx18, Glx24, Glx28

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