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VENT-FREE FIREPLACE SYSTEMS
INSTALLATION AND OPERATING INSTRUCTIONS
MODEL: DIS33
Natural Gas or Propane/LPG
Control Type: Milli-Volt, T-Stat, or
Hi/Lo Remote Control
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 9.
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
– WHAT TO DO IF YOU SMELL GAS
– Installation and service must be performed by
READ AND SAVE THESE INSTRUCTIONS
WARNINGS
WARNINGS
vapors and liquids in the vicinity of this or any
other appliance.
• 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.
a qualified installer, service agency or the gas
supplier.
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Table of Contents
Related Manuals for Monessen Hearth DIS33
Summary of Contents for Monessen Hearth DIS33
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Page 1: Installation And Operating Instructions
VENT-FREE FIREPLACE SYSTEMS INSTALLATION AND OPERATING INSTRUCTIONS MODEL: DIS33 Natural Gas or Propane/LPG Control Type: Milli-Volt, T-Stat, or Hi/Lo Remote Control WARNINGS 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. -
Page 2: Table Of Contents
CONTENTS Checking Gas Pressure .........18 Important Safety Information ........3 Electrical Wiring (Milli-Volt) ........19 Product Features ............5 Electrical Wiring (Fan)..........21 Operation..............5 Log Placement ............22 Natural Gas ............6 Fame Appearance...........23 Propane/LPG............6 Checking the Burner Flame........24 Specifications ............6 Operating Instructions ...........25 Ignition Controls............6 What to Do if You Smell Gas ......25 Pilot...............6 Hi/Lo Control Lighting Instructions......26... -
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 24. Never burn solid fuels in a fireplace where a unvented Continued from page 3 room heater is installed. 16. Keep room area clear and free from combustible materials, gasoline and other flammable vapors and 25. Always have a fireplace screen in place when the appliance is in operation and, unless other provisions liquids.
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Page 5: Product Features
PRODUCT FEATURES Optional Face Plate Fireplace Screen Control Access Door Control Knobs On/Off Switch Piezo Ignitor Optional T-Stat Optional Blower Sensor Figure 1 - Unvented Gas Heater with Control Access Door Open Your vent-free fireplace must be mounted to the floor or the fireplace hearth. OPERATION This unvented gas heater requires no outside venting and burns cleanly with high heating efficiency. -
Page 6: Natural Gas
PRODUCT FEATURES SPECIFICATIONS NATURAL GAS Milli-Volt and T-Stat Pressure Hi/Lo Pressure Regulator Pressure Setting: 3.5" w.c. Regulator Pressure Setting: 3.5" w.c. Pilot Regulator: 3.5" w.c. Pilot Regulator: 3.5" w.c. Gas Inlet Pressure: Max. 10 1/2" w. c. Gas Inlet Pressure: Max. 11" w.c. Min. -
Page 7: 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: • Installation/Operating instructions • Brass Louvers (5) • 33" unvented gas heater with simulated brick panels. •... -
Page 8: General Installation Information
GENERAL INSTALLATION INFORMATION REMOVING SCREEN Remove fireplace screen by pushing screen frame panel up and out. See Figure 2. Do not operate the unit without the screen frame panel and canopy installed. NOTE: Fireplace screen must be removed to access log box and to install canopy. -
Page 9: Codes
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 10 GENERAL INSTALLATION INFORMATION Counter Fireplace � � Figure 4 - 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:...
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Page 11: Clearances And Height Requirements
CLEARANCES HEIGHT REQUIREMENTS The dimensions shown in Figures 5 and 8 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. Follow these instructions carefully to ensure safe installation. - Page 12 CLEARANCES and HEIGHT REQUIREMENTS HEAT RESISTANT MATERIAL (MINIMUM REQUIRE- MENTS) WITH NO WOODEN MANTEL OR OTHER COM- BUSTIBLE PROJECTION Heat resistant material (minimum requirements) with wooden mantel or other combustible projection: �� �� ���� To install the heater with a wooden mantel shelf or other combustible ��...
- Page 13 CLEARANCES and HEIGHT REQUIREMENTS 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. See to Figures 10 and 11. �����������...
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Page 14: Fireplace Framing
FIREPLACE FRAMING 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 15: Securing Heater To Floor
SECURING HEATER TO FLOOR NOTE: Clearance requirements as detailed in “Clearances and Height Requirements” section of this manual must be met before securing heater in place. To prevent movement, the heater must be secured to the floor or hearth. 1. Open the control access door and remove the screen. 2. -
Page 16: 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 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 17 CONNECTING THE GAS CHECK GAS TYPE: The gas supply must be the same as stated on heater's rating plate. Located behind the control access door (Figure 1, page 5). If the gas supply is different, DO NOT INSTALL the heater. Contact your dealer for the correct model. Connecting to the wrong gas type may result in property damage or personal injury.
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Page 18: Checking Gas Pressure
CHECKING GAS PRESSURE The stainless flex line is on the right side facing the fireplace and can connect to either a NPT female or NPT male pipe. To Connecting directly to an connect from the opposite side, route the pipe under the rear portion unregulated propane/LPG of the unit. -
Page 19: Electrical Wiring (Milli-Volt)
ELECTRICAL WIRING (MILLI-VOLT) The milli-volt valve is a self-powered combination gas Label all wires prior to disconnection control THAT DOES NOT REQUIRE 110 VAC TO OPERATE. when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. On/Off Pilot Switch... - Page 20 ELECTRICAL WIRING (MILLI-VOLT) CONNECTING REMOTE RECEIVER Remote THESE INSTRUCTIONS SUPERCEDE THE SECTION Receiver ENTITLED “HEARTH MOUNT” IN THE MILLI-VOLT HAND-HELD REMOTE INSTRUCTIONS SUPPLIED WITH THE REMOTE. 1. Remove cover on control panel to show opening for remote receiver. See Figure 25. 2.
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Page 21: Electrical Wiring (Fan)
(see parts list for part number). 120 volts, 60Hz, 1 amps. Electrical power cord (plug) can be routed to exit the DIS33 on either the left side or the right side. Remove cord protector from side of unit, route power cord through hole opposite side. Reinstall cord protector. -
Page 22: Log Placement
LOG PLACEMENT Before you begin — This unit is supplied with four 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 23: Fame 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 24: Checking The Burner Flame
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 log top surfaces. The yellow flames should not contact the logs. -
Page 25: 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 an ignition device which automatically lights the pilot. Do not try to light the unit by hand. -
Page 26: Hi/Lo Control Lighting Instructions
OPERATING INSTRUCTIONS HI/LO 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 27: Milli-Volt 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 28. -
Page 28: Match Lighting Instructions
OPERATING INSTRUCTIONS BLOWER OPERATION 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 29: Cleaning And Servicing
CLEANING AND SERVICING Annual inspection and cleaning by your dealer or qualified service technician is recommended to prevent malfunction and/or sooting. Turn off heater and allow to cool before cleaning. Disconnect electrical power before cleaning or servicing. Remove logs, handling carefully by holding gently at each end. Gloves are recommended to prevent skin irritation from ceramic fibers. -
Page 30: 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 31 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...
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Page 32: Illustrated Parts Breakdown
ILLUSTRATED PARTS BREAKDOWN � � � �� � � � � � �� �� � � �� �� � 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 33: Replacement Parts List
REPLACEMENT PARTS LIST Item Description DIS33N/P Screen Assembly 23D6003K Canopy Assembly 23D0138K Top Brass Louver 23D0201K Brass Louver Door 23D0203K Left Simulate Brick 23D7051 Right Simulated Brick 23D7049 Center Simulated Brick 23D7047 Control Door Assembly 23D6013K OPTIONAL FACE PLATE 33" x 43" Black Face Plate Kit DIFACESM 33"... -
Page 34: Gratre And Base Assembly
ILLUSTRATED PARTS BREAKDOWN 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 35 REPLACEMENT PARTS LIST REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. Item Description DIS33N DIS33P Common Parts Piezo Ignitor 14D0503 14D0503 Piezo Wire 00K0632 00K0632 Front Burner 44D0020K 44D0020K Rear Burner 44D0035K 44D0036K Hi/Lo Control Control Valve 26D4000 26D4001 Front Burner Injector 44D0208 44D0210 ODS Pilot Assembly...
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Page 36: Logs
ILLUSTRATED PARTS BREAKDOWN REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. Item Description DIS33 Back Log 44D1011 Middle Log 44D1010 Front Log 44D1012 Top Log 44D1013 � � � � 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 NOTES 26D3311...
- Page 38 NOTES 26D3311...
- Page 39 NOTES 26D3311...
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Page 40: Warranty
Free Ceramic Fiber Logs, Catalytic Filter 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.