DEB <strong>Unvented</strong> <strong>Gas</strong> <strong>Log</strong>sCONTENTSThank you and congratulations on your purchase of an MHSC <strong>Log</strong> Set.PLEASE READ THE INSTALLATION AND OPERATION INSTRUCTIONS BEFORE USING THE APPLIANCE!IMPORTANT: Read all instructions and warnings carefully bef<strong>or</strong>e starting installation.Failure to follow these instructions may result in a possible fire hazard and will void the warranty.Imp<strong>or</strong>tant Safety Inf<strong>or</strong>mation......................................3Codes......................................................................4Product Features ........................................................5<strong>Gas</strong> Specifications...................................................5<strong>Gas</strong> Pressures.........................................................5Ignition Controls.......................................................5Pilot..........................................................................5Thermal Generat<strong>or</strong>..................................................5Getting Started.............................................................6Combustion and Ventilation Air................................7Fireplace and Hearth Dimensions .............................8Placement in a Fireplace with Restrictive Barrier.....8Clearances and Height Requirements ......................9Installation Requirements.........................................10Installation..................................................................12Installing <strong>Vented</strong> Applications................................12Damper Stop Installation.......................................12Place and Secure <strong>Appliance</strong>..................................12Assembly Procedure.............................................13<strong>Gas</strong> Line Connection ................................................13Check <strong>Gas</strong> Pressure .................................................14<strong>Manual</strong> Control......................................................14Millivolt/Thermostat Control...................................14Electrical Wiring - Millivolt........................................15Connect Wall Switch <strong>or</strong> Thermostat......................15Connect Remote Receiver....................................16Install Thermostat Sens<strong>or</strong>......................................16Operation of Thermostat Sens<strong>or</strong>...........................18Check System Operation.......................................18<strong>Log</strong> Placement ..........................................................19Flame Appearance.....................................................21Millivolt/Thermostat Control...................................21<strong>Manual</strong> Control......................................................21Burner Flame Appearance.....................................22Operating Instructions...............................................23F<strong>or</strong> Your Safety Read Bef<strong>or</strong>e Lighting...................24<strong>Manual</strong> Control .....................................................25Millivolt/Thermostat Control ..................................26To Turn Off <strong>Gas</strong> to <strong>Heater</strong>.....................................26Match Lighting Instructions....................................27Cleaning and Servicing.............................................27Troubleshooting.........................................................28Replacement Parts.....................................................30Burner Assembly...................................................30Access<strong>or</strong>ies...........................................................31<strong>Log</strong>s.......................................................................32Massachusetts Residents Only................................34Warranty......................................................................3544D0060
IMPORTANT SAFETY INFORMATIONINSTALLERPlease leave these instructions with the appliance.OWNERDEB <strong>Unvented</strong> <strong>Gas</strong> <strong>Log</strong>sPlease retain these instructions f<strong>or</strong> future reference.WARNING• Any change to this heater <strong>or</strong> its controls can be dangerous.• Improper installation <strong>or</strong> use of the heater can cause serious injury <strong>or</strong> death fromfire, burns, explosion <strong>or</strong> carbon monoxide poisoning.• Do not allow fans to blow directly into the fireplace. Avoid any drafts that alterburner flame patterns.• Do not use a blower insert, heat exchanger insert <strong>or</strong> other access<strong>or</strong>y, notapproved f<strong>or</strong> use with this heater where applicable.1. Due to high temperatures, the appliance should belocated out of traffic and away from furniture anddraperies.2. Children and adults should be alerted to the hazardof high surface temperature and should stay awayto avoid burns <strong>or</strong> clothing ignition.3. Young children should be carefully supervised whenthey are in the same room with the appliance.4. Do not place clothing <strong>or</strong> other flammable materialon <strong>or</strong> near the appliance.5. Any safety screen <strong>or</strong> guard removed f<strong>or</strong> servicingan appliance, must be replaced pri<strong>or</strong> to operatingthe heater.6. Installation and repair should be done by a qualifiedservice person.7. To prevent malfunction and/<strong>or</strong> sooting, an unventedgas heater should be cleaned bef<strong>or</strong>e use and atleast annually by a professional service person.M<strong>or</strong>e frequent cleaning may be required due toexcessive lint from carpeting, bedding material, etc.It is imperative that control compartments, burnersand circulating air passageways be kept clean.8. CARBON MONOXIDE POISONING: Early signs ofcarbon monoxide poisoning are similar to the flu withheadaches, dizziness and/<strong>or</strong> nausea. If you have thesesigns, obtain fresh air immediately. Have the heaterserviced as it may not be operating properly.9. The installation must conf<strong>or</strong>m with local codes <strong>or</strong>, inthe absence of local codes, with the National Fuel <strong>Gas</strong>Code, ANSI Z223.l/NFPA54.10. This unit complies with the latest edition of ANSIZ21.11.2 <strong>Unvented</strong> <strong>Heater</strong>s and also complies withANSI Z21.60 / CSA 2.26 Dec<strong>or</strong>ative <strong>Vented</strong> <strong>Appliance</strong>sf<strong>or</strong> Solid Fuel Burning Fireplaces. State and localcodes may only allow operation of this appliance in avented configuration. Check your state <strong>or</strong> local codes.F<strong>or</strong> vented operation, see “<strong>Vented</strong> Instructions” in thismanual.11. Do not install the heaters in a bathroom <strong>or</strong> bedroom.44D006012. C<strong>or</strong>rect installation of the ceramic fiber logs, properlocation of the heater, and annual cleaning are necessaryto avoid potential problems with sooting. Sooting,resulting from improper installation <strong>or</strong> operation, cansettle on surfaces outside the fireplace. See log placementinstructions f<strong>or</strong> proper installation.13. Avoid any drafts that alter burner flame patterns. Do notallow fans to blow directly into fireplace. Do not placea blower inside burn area of firebox. Ceiling fans maycreate drafts that alter burner flame patterns. Sootingand improper burning will occur.14. Caution: Candles, incense, oil lamps, etc. producecombustion byproducts including soot. Vent-free applianceswill not filter <strong>or</strong> clean soot produced by thesetypes of products. In addition, the smoke and/<strong>or</strong> aromatics(scents) may be reburnt in the vent-free appliancewhich can produce od<strong>or</strong>s. It is recommended tominimize the use of candles, incense, etc. while thevent-free appliance is in operation.15. This is an unvented gas-fired heater. It uses air(oxygen) from the room in which it is installed. Provisionsf<strong>or</strong> adequate combustion and ventilation air mustbe provided. Refer to Page 7.16. Keep room area clear and free from combustiblematerials, gasoline and other flammable vap<strong>or</strong>s andliquids.17. <strong>Unvented</strong> gas heaters are a supplemental zone heater.They are not intended to be the primary heating appliance.18. <strong>Unvented</strong> gas heaters emit moisture into the livingarea. In most homes of average construction, thisdoes not pose a problem. In houses of extremelytight construction, additional mechanical ventilation isrecommended.19. During manufacturing, fabricating and shipping, variouscomponents of this appliance are treated with certainoils, films <strong>or</strong> bonding agents. These chemicals are notharmful but may produce annoying smoke and smellsas they are burned off during the initial operation of theappliance; possibly causing headaches <strong>or</strong> eye <strong>or</strong> lungirritation. This is a n<strong>or</strong>mal and temp<strong>or</strong>ary occurrence.