Monessen Hearth DEB20 Installation And Operating Instructions Manual
Unvented gas log heater or vented decorative appliance
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- Installation and operating instructions manual (40 pages)
Table of Contents
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Unvented Gas Log Heater
or Vented Decorative
Appliance
Models:
DEB20, DEB24, DEB30
Installation and
Operating Instructions
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.
440060
DEB cover
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 7.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future refer-
ence.
44D0060 8/10 Rev. 9
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Table of Contents
Related Manuals for Monessen Hearth DEB20
Summary of Contents for Monessen Hearth DEB20
- Page 1 Unvented Gas Log Heater or Vented Decorative Appliance Models: DEB20, DEB24, DEB30 Installation and Operating Instructions WARNINGS 440060 If the information in this manual is not DEB cover followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
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Page 2: Table Of Contents
DEB Unvented Gas Logs CONTENTS Thank you and congratulations on your purchase of an MHSC Log Set. 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. Important Safety Information ........3 Electrical Wiring - Millivolt ........15 Codes ..............4... -
Page 3: Important Safety Information
IMPORTANT SAFETY INFORMATION DEB Unvented Gas Logs OWNER INSTALLER Please retain these instructions for future reference. Please leave these instructions with the appliance. • 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: Codes
IMPORTANT SAFETY INFORMATION DEB Unvented Gas Logs The initial break-in operation should last two to three hours with the burner at the highest setting. Provide Never connect unit to private (non-utility) maximum ventilation by opening windows or doors to gas wells. This gas is commonly known allow odors to dissipate. -
Page 5: Product Features
PRODUCT FEATURES DEB Unvented Gas Logs GAS SPECIFICATIONS IGNITION CONTROLS Max.Input Min. Input Piezo ignitor allows ignition of the pilot without the Model Fuel Control BTU/h BTU/h use of matches or batteries. DEB0NM Nat. Manual 18,000 8,000 Manual control has three (3) positions: DEB0PM Manual 18,000... -
Page 6: Getting Started
DEB Unvented Gas Logs GETTING STARTED • Handle the gas log burner assembly by the burner only. Do not pick the unit up by the burners. • Gloves are recommended when handling ceramic fiber logs to prevent skin irritation from loose fibers. Logs are fragile — handle with care. -
Page 7: Combustion And Ventilation Air
COMBUSTION and VENTILATION AIR DEB Unvented Gas Logs ADEQUATE COMBUSTION AND VENTILATION AIR This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. The National Fuel Gas Code, (ANSI Z223.1/NFPA54), defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 BTU per hour (4.8 m per kw) of the aggre- gate input rating of all appliances installed in that space, and an unconfined space as a space... -
Page 8: Fireplace And Hearth Dimensions
DEB Unvented Gas Logs FIREPLACE and HEARTH DIMENSIONS This appliance is for installation only in a solid-fuel burning masonry or UL127 factory-built fireplace, vent free appliance, or in listed ventless firebox enclosure. It has been design certified for these installations. Exception: DO NOT install this appliance in a factory-built fireplace that includes instructions stating it has not been tested or should not be used with unvented gas logs. -
Page 9: Clearances And Height Requirements
Measure heat resist material Sidewall and Ceiling Clearances Heat Resistant Material Requirements for Safe Installation Heat resistant material (minimum requirements) Measurement DEB20 DEB24/30 with no wooden mantel or other combustible pro- 1” or more Hood not required FP1996 jection: 8” or less than 1” Hood not required... -
Page 10: Installation Requirements
0Z\x" of 14Z\x" above the open- above the opening. ing. FP797 FP798 Figure 7 - Figure 8 - DEB20 Minimum Mantel Clearance with No Hood All Models Minimum Mantel Clearance with a Hood Fp2797 mantel no hood FP2798 44D0060 mantel with hood... - Page 11 INSTALLATION REQUIREMENTS DEB Unvented Gas Logs 10” or Less 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.
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Page 12: Installation
DEB Unvented Gas Logs INSTALLATION BEFORE FULLY INSTALLING THE UNIT: DAMPER STOP INSTALLATION A damper stop must be provided with the unit. Contact your • Turn OFF the gas supply to the fireplace or firebox. dealer to obtain one. The damper stop must be installed as •... -
Page 13: Assembly Procedure
INSTALLATION DEB Unvented Gas Logs ASSEMBLY PROCEDURE: CONNECT THE GAS 1. Center the gas log unit in the fireplace or firebox. Make NOTICE: A qualified gas appliance installer must connect certain the front feet of the grate sit inside the front edge the heater to the gas supply. -
Page 14: Check Gas Pressure
DEB Unvented Gas Logs INSTALLATION MILLIVOLT CONTROL Connecting directly to an unregulated Figure 17 p r o p a n e / L P G t a n k c a n c a u s e a n The valve regulator controls the burner pressure which explosion. -
Page 15: Electrical Wiring - Millivolt
ELECTRICAL WIRING - MILLIVOLT DEB Unvented Gas Logs Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. ODS Pilot On/Off Switch ODS Pilot Wall Switch Millivolt Valve On/Off Switch Spade Terminal TH = 3... -
Page 16: Connect Remote Receiver
ELECTRICAL WIRING - MILLIVOLT DEB Unvented Gas Logs CONNECT REMOTE RECEIVER INSTALL T-STAT SENSOR Connect the connectors to the two () .5” male connectors OPTION SOLD SEPARATELY located on the right side when facing the unit. Figure 19. 1. Remove metal bracket and label from box. Do not allow the wire to touch the grate or burners. - Page 17 ELECTRICAL WIRING - MILLIVOLT DEB Unvented Gas Logs 5. Route wiring harnesses through large hole on side of unit. Mount bracket to side of unit with screw provided. Figure 22 6. Attach wiring harness to either TP/TH and TH on control valve or to existing wiring harness with two () 0.50"...
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Page 18: Operation Of Thermostat Sensor
ELECTRICAL WIRING - MILLIVOLT DEB Unvented Gas Logs OPERATION OF THERMOSTAT SENSOR On/Off Switch 1. Follow millivolt lighting instructions on lighting plate attached to unit or in homeowner’s manual. . With control knob in the “ON” position make sure the ON/OFF switch is in the “OFF” position. Figure 3. -
Page 19: Log Placement
Log #6 PLACE LOGS ON GRATE Figures 25 and 26 NOTE: Model DEB20 has 4 logs and models Log #4 DEB24 and DEB30 have 5 logs. 1. Install back log (#1) on two pins located near the back of base. -
Page 20: Log Placement
DEB Unvented Gas Logs LOG PLACEMENT Log #6 Log #4 Log #3 Log #1 Log # Log #5 (4 & 30 Only) Left Front Figure 26 - Back Right Front Place Logs on Grate Pins and Center (DEB24/30) LG105 Pins LG1005 DEB24 30 logs 44D0060... -
Page 21: Flame Appearance
FLAME APPEARANCE DEB Unvented Gas Logs PLACE THE DECORATIVE ROCk DO NOT sprinkle volcanic rock on the logs, around the pilot, or on or near burners. This may cause sooting. Place volcanic rock only on the floor of the fireplace. During initial operation of the new heater, burning logs will give off a paper burning smell and orange flames will be present. - Page 22 FLAME APPEARANCE DEB Unvented Gas Logs In normal operation at full rate after 15 minutes, the following flame appearances should be observed: LG106 Figure 31 - LG1026 Correct Rear Flame Appearance DEB log flames The left and right rear flames should be yellow and extend 1"-"...
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Page 23: Operating Instructions
OPERATING INSTRUCTIONS DEB Unvented Gas Logs OPERATING INSTRUCTIONS Avoid any drafts that alter burner flame patterns. Do not allow fans to blow directly into the fireplace. Do not place a blower inside the burn area of the firebox. Ceiling fans may create drafts that alter flame patterns. -
Page 24: For Your Safety Read Before Lighting
DEB Unvented Gas Logs 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, refer to “Match Lighting”... -
Page 25: Manual Control
OPERATING INSTRUCTIONS DEB Unvented Gas Logs MANUAL CONTROL LIGHTING INSTRUCTIONS 1. STOP! Read the safety information. . Make sure the manual shutoff valve is fully open. 3. This heater is equipped with an ignition device (piezo) which automatically lights the pilot. Rotate 4. -
Page 26: Millivolt Control Lighting Instructions
DEB Unvented Gas Logs OPERATING INSTRUCTIONS MILLIVOLT CONTROL LIGHTING INSTRUCTIONS 1. STOP! Read the safety information label. . 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 and CLEANING & SERVICING DEB Unvented Gas Logs MATCH LIGHTING INSTRUCTIONS 1. Remove any items necessary for easy access to the pilot (for example: logs, screens, etc.). . 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 28: Troubleshooting
DEB Unvented Gas Logs TROUBLESHOOTING Turn off appliance and allow to cool before NOTE: All troubleshooting items are listed in order of operation. cleaning. Only a qualified service person should service and repair the heater. Problem Possible Cause Solution When ignitor button is 1. - Page 29 TROUBLESHOOTING DEB Unvented Gas Logs Problem Possible Cause Solution 1. Press in control knob fully. ODS/pilot lights, but flame 1. Control knob not fully pressed in. goes out when control . After ODS/pilot lights, keep control knob . Control knob not pressed in long knob is released.
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Page 30: Replacement Parts
DEB Unvented Gas Logs REPLACEMENT PARTS 5 (Manual) 5 (Millivolt) 440060 DEB parts 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. 44D0060... -
Page 31: Accessories
REPLACEMENT PARTS DEB Unvented Gas Logs DEB20 DEB24/30 Ref. Description Qty. Natural Propane Natural Propane Piezo Ignitor 14D0503 14D0503 14D0503 14D0503 Piezo Wire 00K063 00K063 00K063 00K063 Front Burner 44D000K 44D000K 44D0019K 44D0019K Rear Burner 44D0035K 44D0036K 44D0081K 44D008K Manual Control... - Page 32 DEB Unvented Gas Logs REPLACEMENT PARTS 5 (DEB24/DEB30) Ref. Description Qty. DEB18 DEB24 DEB30 Back Log 44D1011K 44D1001K 44D1006K Right Center Log 44D10 44D100 44D104K Left Center Log 44D103 44D101 44D105 Middle Front Log 440060 44D101K 44D100K 44D1007K Left Front Log 44D1003K 44D1008K DEB log parts...
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Page 34: Massachusetts Residents Only
DEB Unvented Gas Logs Massachusetts Residents Only — Please read and follow these special requirements . Approved Carbon Monoxide Detectors. Each carbon NOTE REGARDING VENTED PRODUCTS monoxide detector as required in accordance with the above This product must be installed by a licensed plumber or gas fitter provisions shall comply with NFPA 70 and be ANSI/UL 034 when installed within the Commonwealth of Massachusetts. -
Page 35: Warranty
DEB Unvented Gas Logs LIMITED LIFETIME WARRANTY LIFETIME WARRANTY The following components are warranted for life to the original owner, subject of proof of purchase: Firebox, Combustion Chamber, Heat Exchanger, Grate, and Stainless Steel Burners. FIVE YEAR WARRANTY The following components are warranted for 5 years to the original owner, subject of proof of pur- chase: Vent Free Ceramic Fiber Logs and Aluminized Burners. - Page 36 MHSC 149 Cleveland Drive • Paris, Kentucky 40361 www.mhsc.com...