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UNVENTED GAS LOG HEATER OR
VENTED DECORATIVE APPLIANCE
INSTALLATION AND OPERATING INSTRUCTIONS
This is an unvented gas-fi red
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.
Natural Gas or Propane/LPG • Control Type: Milli-Volt
READ AND SAVE THESE INSTRUCTIONS
MODEL: DST30
WARNINGS
If the information in this manual is not followed exactly,
a fi re or explosion may result causing property damage,
personal injury or loss of life.
–
Do not store or use gasoline or other fl ammable
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
fi re department.
–
Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
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Table of Contents
Related Manuals for Monessen Hearth DST30
Summary of Contents for Monessen Hearth DST30
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Page 1: Installation And Operating Instructions
UNVENTED GAS LOG HEATER OR VENTED DECORATIVE APPLIANCE INSTALLATION AND OPERATING INSTRUCTIONS MODEL: DST30 Natural Gas or Propane/LPG • Control Type: Milli-Volt WARNINGS If the information in this manual is not followed exactly, a fi re or explosion may result causing property damage, personal injury or loss of life. -
Page 2: Table Of Contents
CONTENTS 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
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 21. The heater and its individual shutoff valve must be disconnected from the gas supply piping system during 14. Caution: Candles, incense, oil lamps, etc. produce any pressure testing of that system at test pressures in combustion byproducts including soot.
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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 • Plastic bag containing crushed volcanic rock •... -
Page 6: Product Features And Specifications
PRODUCT FEATURES SPECIFICATIONS NATURAL GAS Milli-Volt Pressure Regulator Pressure Setting: 3.5" w.c. Pilot Regulator: 3.5" w.c. Gas Inlet Pressure: Max. 10 1/2" w. c. Min. 5" w.c. Gas Rate Model Number Control Max BTU/Hr Min BTU/Hr DST30NV MILLI-VOLT 38,000 24,000 PROPANE/LPG Note: An external regulator is required to reduce supply pressure to a maximum of 13"... -
Page 7: 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 8 GENERAL INSTALLATION INFORMATION Inside Wall Fireplace Figure 1 - Example of a Large Room with a See-Through Unit as 1/2 Wall Divider The following formula can be used to determine the maximum heater rating per the defi nition of unconfi ned space: BTU/Hr = (L ) Ft x (W) Ft x (H) Ft x 1000...
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Page 9: Fireplace And Hearth Dimensions
GPF36, GSTF36, GRCF36, GLCF36 The DST30 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 Z21.91-2000 (typically referred to as a “Universal Firebox”), as long as fi... -
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 fi replace that has a restrictive barrier along the bottom front opening of the fi... -
Page 11: Clearances And Height Requirements
CLEARANCES HEIGHT REQUIREMENTS The dimensions shown in Figures 4 through 10 and defined in the fireplace manufacturer's instructions are minimum clearances to maintain when installing this heater. When heater is installed into a ventless fi rebox, minimum clearances, as specifi ed by the ventless fi... - Page 12 CLEARANCES and HEIGHT REQUIREMENTS IMPORTANT: If installing unit into an unvented fi rebox, minimum required clearances listed in the fi rebox installation manual must be met. If installing unit into a vented fi rebox with a working damper, minimum clearances shown in Figures 5 through 10 must be met.
- Page 13 CLEARANCES and HEIGHT REQUIREMENTS 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, fi rst measure the heat resistant material shown in Figure 6, the refer to Table B. 8"...
- Page 14 CLEARANCES HEIGHT REQUIRMENTS 10" or less Heat Resistant Material 12" min. 28" Heater in Fireplace or Example: The bottom of the mantel may project from the wall a Firebox maximum of 10" at a minimum of 28" above the fi rebox. Figure 7 - Minimum Mantel Clearance with No Hood 7"...
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Page 15: Floor Clearance
FLOOR CLEARANCE The gas log heater must be installed at least 5" above any combustible fl ooring material, such as carpeting or tile, which is closer than 14" to the base of the fi replace. The minimum distance must be maintained from the top surface of carpeting, tile, etc. -
Page 16: Fireplace Preparation
FIREPLACE PREPARATION BEFORE FULLY INSTALLING THE UNIT: • Turn OFF the gas supply to the fi replace or fi rebox. • Seal any fresh air vents and/or ash clean-out doors located on the fl oor or wall of the fi replace. If left unsealed, drafting may cause pilot outage or sooting. -
Page 17: Installing Vented Applications
INSTALLING VENTED APPLICATIONS The fi replace and gas logs function as a system. If the fi replace 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 18: 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 sulfi de limits, and where permitted by local codes. -
Page 19: Checking Gas Pressure
CHECKING GAS PRESSURE The heater gas inlet connection is a female " NPT at the valve. The inlet connection is on the right side of unit when facing the Connecting directly to an control. To connect from the opposite side, rotate unit 180° or route unregulated propane/LPG the pipe under the rear portion of the unit. -
Page 20: 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. CAUTION Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and Pilot dangerous operation. Verify On/Off proper operation Switch... - Page 21 ELECTRICAL WIRING (MILLI-VOLT) CONNECTING REMOTE RECEIVER THESE INSTRUCTIONS SUPERCEDE THE SEC- TION ENTITLED “HEARTH MOUNT” IN THE MILLI-VOLT HAND-HELD REMOTE INSTRUC- TIONS SUPPLIED WITH THE REMOTE. 1. Unscrew 2 (two) screws located on the side of the frame. Unscrew 1 (one) screw located on top of the frame.
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Page 22: Log Placement
LOG PLACEMENT Before you begin — This unit is supplied with one ceramic fi ber log. Do not handle the log with your bare hands. Always wear gloves to prevent skin irritation from ceramic fi bers. After handling the log, wash your hands gently with soap and water to remove any traces of fi... -
Page 23: 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 fl ames visually during operation. CHECKING THE PILOT FLAME The pilot fl ame 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 fl ame appearances should be observed: Figure 20 - Correct Appearance of Flames The flames should be yellow and extend 3"-4" 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 fi re 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: Milli-Volt Control Lighting Instructions
OPERATING 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 27. -
Page 27: 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 fl ame to the end of the pilot and ignite the pilot. 3. -
Page 28: 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 POSSIBLE CAUSE OBSERVED PROBLEM 1 Replace ignitor. When ignitor button is pressed, 1. - Page 29 TROUBLESHOOTING If the gas quality is bad, your pilot may not stay lit, the burners may produce soot and the heater may backfi re when lit. If the gas quality or pressure is low, contact your local gas supplier immediately. REMEDY POSSIBLE CAUSE OBSERVED PROBLEM...
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Page 30: 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. 43D0122... -
Page 31: Replacement Parts List
REPLACEMENT PARTS LIST REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. DST30 Item Description Natural Propane Piezo Ignitor 14D0503 14D0503 Piezo Wire 00K0632 00K0632 Burner #1 43D0174 43D0176 Burner #2 43D0175 43D0177 Crossover Burner 43D0178 43D0179 Burner Injector 30D2304 43D0180 Extension Knob (Hi-Lo) -
Page 32: Warranty
This warranty is expressly in lieu of other warranties, express or implied, including the warranty of merchantability of fi tness 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.