Monessen Hearth DEB20 manual

READ AND SA VE THESE INSTRUCTIONS MODELS: DEB20, DEB24, DEB30 Natural Gas or Propane/LPG Control T ype: Manual or Milli-V olt UNVENTED GAS LOG HEA TER OR VENTED DECORA TIVE APPLIANCE INST ALLA TION AND OPERA TING INSTRUCTIONS This is an unvented gas- fi red heater . It uses air (oxygen) from the room in which it is installed. Provisions for adequa[...]

2 44D0060 CONTENTS Important Safety Information .................................. 3 Getting Started .......................................................... 5 Product Features and Speci fi cations .................... 6 Natural Gas ......................................................... 6 Propane/LP ...........................................[...]

44D0060 3 IMPORT ANT SAFETY INFORMA TION 10. This unit complies with ANSI Z21.11.2-2001 Unvented Heaters and also complies with ANSI Z21.60-2000 Deco- rative Vented Appliances for Solid Fuel Burning Fire- places. State and local codes may only allow operation of this appliance in a vented configuration. Check your state or local codes. For vented o[...]

4 44D0060 IMPORT ANT SAFETY INFORMA TION Continued from page 3 16. Keep room area clear and free from combustible materi- als, gasoline and other flammable vapors and liquids. 17. Unvented gas heaters are a supplemental zone heater. They are not intended to be the primary heating appli- ance. 18. Unvented gas heaters emit moisture into the living a[...]

44D0060 5 MAKE SURE YOU HA VE RECEIVED ALL P ARTS: Check your packing list to verify that all listed parts have been received. You should have the following: • Unvented gas log grate/burner assembly • Two (2) Plastic bags containing crushed volcanic rock • Installation/operating instructions • Two (2) anchoring screws • Ceramic Fiber logs[...]

6 44D0060 PRODUCT FEA TURES AND SPECIFICA TIONS Gas Rate Model Number Control Max BTU/Hr Min BTU/Hr DEB20NM MANUAL 28,000 18,000 DEB24NM MANUAL 38,000 20,000 DEB30NM MANUAL 38,000 20,000 DEB20NV MILLI-VOL T 28,000 18,000 DEB24NV MILLI-VOL T 38,000 25,000 DEB30NV MILLI-VOL T 38,000 25,000 Gas Rate Model Number Control Max BTU/Hr Min BTU/Hr DEB20PM M[...]

44D0060 7 IGNITION CONTROLS Piezo ignitor allows ignition of the pilot without the use of matches or batteries. Manual 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. HI/LOW - Variable position corresponding to desired flame height. Milli-V olt control[...]

8 44D0060 GENERAL INST ALLA TION INFORMA TION 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 or National Fire Protection Association, Inc. Batterymarch Park Quincy, [...]

44D0060 9 W H The following formula can be used to determine the maximum heater rating per the definition of unconfined space: BTU/Hr = (L 1 + L 2 ) Ft x (W) Ft x (H) Ft 50 Consider two connecting rooms with an open area between, with the following dimensions: L 1 = 15 1 / 2 Ft., L 2 = 12 Ft., W = 12 Ft., H = 8 Ft. BTU/Hr = (15 1 / 2 + 12) x (12) x[...]

10 44D0060 A C D B Model A B C D DEB20 18" 13 1 / 4 " 27" 17" DEB24 22 1 / 4 " 13 1 / 4 " 28 1 / 2 " 17" DEB30 25 1 / 2 " 13 1 / 4 " 32 1 / 2 " 17" FIREPLACE AND HEARTH DIMENSIONS Use manufacturer's installation and clearance requirements as de fi ned in their manual. The DEB Series [...]

44D0060 11 Height of Restriction (X) Minimum Depth of Fireplace/Firebox No restriction 13 1 / 4 " 0 to 1 1 / 2 " 16" From 1 1 / 2 " to 3" 16" Greater than 3" ANY BARRIER GREA TER THAN THREE INCHES (3") PLACED IN FRONT OF THE GAS LOG SET IS NOT RECOMMENDED BY THE MANUF ACTURER. PLACEMENT IN A FIREPLACE WITH A [...]

12 44D0060 16" 42" CLEARANCES AND HEIGHT REQUIREMENTS Sidewall and ceiling clearances: The sides of the fireplace opening must be at least 16" from any combustible wall. The ceiling must be at least 42" from the top of the fireplace opening. Figure 4 - Sidewall and Ceiling Clearances The dimensions shown in Figures 4 through 12 [...]

44D0060 13 Measur e this distance Heater in Fireplace or Firebox Heat Resistant Material Figure 5 - Measuring Heat Resistant Material Heat resistant material (minimum requirements) with no wooden mantel or other combustible projection: To install the gas logs into a fireplace with no wooden mantel, shelf or other combustible projection above the fi[...]

14 44D0060 Heater in Fireplace or Firebox 8" or More of Heat Resista n Material Hood CLEARANCES and HEIGHT REQUIREMENTS 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[...]

44D0060 15 Heater in Fireplace or Firebox Heat Resistant Material 10" 8" 6" 2 1 / 2 " 8" 14" 20 1 / 2 "2 4 5 / 8 "2 8 " Heater in Fireplace or Firebox Heat Resistant Material Hood 10" 12" 8" 6" 2 1 / 2 " 8" 14 1 / 2 "1 8 5 / 8 "2 2 1 / 2 " 26" CLEARANCES [...]

16 44D0060 Heater in Fireplace or Firebox Heat Resistant Material 10" or less 12" min. 28" 2 1 / 2 " 8" 6" 7" 14 1 / 2 " 4" Figure 10 - Minimum Mantel Clearance with No Hood - DEB24 and DEB30 (Example of Unsafe Installation) Figure 9 - Minimum Mantel Clearance with No Hood — DEB24 and DEB30 Example: Th[...]

44D0060 17 Heater in Fireplace or Firebox 5" Minimum Combustible Material 14" Minimum Heater in Fireplace or Firebox Combustible Material This Distance May Now Be Less than 5" 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 [...]

18 44D0060 Damper Stop Damper Figure 13 - Damper Stop Installation. (See W ARNING at top of next page.) FIREPLACE PREP ARA TION BEFORE FULL Y INST ALLING 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, draftin[...]

44D0060 19 INST ALLING VENTED APPLICA TIONS PLACING AND SECURING APPLIANCE ASSEMBL Y PROCEDURE: 1. Center the gas log unit in the fireplace or firebox. Make certain the front feet of the grate sit inside the front edge of t he fireplace or firebox. 2. Anchor holes are located on the right and left sides of the unit. After centering the grate correc[...]

20 44D0060 Pipe Coupling T o Heater V alve Gas Supply Inlet CONNECTING THE GAS NOTICE: A quali fi ed gas appliance installer must connect the heater to the gas supply . Consult all local codes. IMPORT ANT : Hold heater valve firmly with a wrench to prevent movement when connecting to inlet pipe. Manual Shutoff V alve Pipe Stainless Flexible T ube [...]

44D0060 21 CHECKING GAS PRESSURE The heater gas inlet connection is a 3 / 8 " NPT at the valve. On all control type units, the inlet connection is on the right side of unit. To connect from the opposite side, route the pipe around the back portion of the unit. When tightening up the joint to the valve, hold the valve securely to prevent moveme[...]

22 44D0060 ELECTRICAL WIRING (MILLI-VOL T) The milli-volt valve is a self-powered combination gas control THA T DOES NOT REQUIRE 1 10 V AC T O OPER- A TE. CONNECTING OPTIONAL W ALL SWITCH OR THERMOST A T 1. Use 18 awg, two-wire cable, 15 feet maximum length. 2. At one end of the cable, connect both wires to the wall switch or thermostat. At the oth[...]

44D0060 23 HIGH LOW 2 6D3 3 1 7 THER MOST A T SETTING H I GH LOW 2 6 D33 1 7 THERM OS T AT SE TT IN G ELECTRICAL WIRING (MILLI-VOL T) CONNECTING REMOTE RECEIVER 1. Connect the connectors to the two .25" male con- nectors located on the right side when facing the unit (Figure 19). Do not let the wire touch the grate or burners. NOTE: Heat reduc[...]

24 44D0060 HI GH L O W 2 6D 33 1 7 THERMOST AT S E TTI NG ELECTRICAL WIRING (MILLI-VOL T) 5. Route wiring harnesses through large hole on side of unit. Mount bracket to side of unit with screw provided. See Figure 22. 6. Attach wiring harness to either TP/TH and TH on control valve or to existing wiring harness with two (2) 0.250" male spade t[...]

44D0060 25 HIGH LOW 2 6D3 3 1 7 T H E RMOS TA T SE TTING A. COMPLETE MILLI-VOL T SYSTEM CHECK (“A” Reading - Thermostat contacts CLOSED - Control Knob “ON” - Main burner should turn ON) a. If the reading is more than 175 milli-volts and the automatic valve still does not come on, replace the control. b. If the closed circuit reading (“A?[...]

26 44D0060 LOG PLACEMENT INST ALLING LOGS ON GRA TE (See Figures 25 and 26 ) NOTE: Model DEB18 has 4 logs and models DEB24 and DEB30 have 5 logs. 1. Install back log (#1) on two pins located near the back of base. Check log position and stability. 2. Install right center log (#2) on pins located near right front of base and center of base. Figure 2[...]

44D0060 27 PLACING THE DECORA TIVE 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 fl oor of the fi replace. During initial operation of the new heater , burning logs will give off a paper burning smell and orange fl ames will be present. Simply open[...]

28 44D0060 In normal operation at full rate after 15 minutes, the following fl ame appearances should be observed: Figure 31 - Correct Appearance of Rear Flames The left and right rear flames should be yellow and extend 1"-2" above the mid log top surfaces. The yellow flames should not contact the logs. There should be glowing embers on [...]

44D0060 29 Figure 32 - Location of Piezo Ignitor , Control Knobs and Switch on Milli-volt and Manual Units A. This appliance is equipped with a piezo ignition device which lights the pilot. If piezo is not working properly see “Match Lighting Instructions,” page 33. B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to sme[...]

30 44D0060 Push Push Rotate Rotate Rotate OPERA TING INSTRUCTIONS Figure 33 - IGN Position Figure 34 - HIGH Position Figure 35 - LOW Position 1. STOP! Read the safety information. 2. Make sure the manual shutoff valve is fully open. 3. This heater is equipped with an ignition device (piezo) which automatically lights the pilot. 4. Refer to Figure 3[...]

44D0060 31 OPERA TING 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 33. 4. [...]

32 44D0060 OPERA TING INSTRUCTIONS AND CLEANING AND SERVICING CLEANING AND SERVICING Annual inspection and cleaning by your dealer or quali fi ed service technician is recommended to prevent malfunction and/or sooting. PERIODIC CLEANING - Refer to parts diagram for location of items discussed below . • Do not use cleaning fluid to clean logs or [...]

44D0060 33 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. POSSIBLE CAUSE 1. Ignitor electrode positioned wrong. 2. Igni[...]

34 44D0060 OBSERVED PROBLEM ODS/pilot lights, but flame goes out when control knob is released. Burner does not light after ODS/ pilot is lit. Burner backfires during com- bustion. Slight smoke or odor during initial operation. Logs appear to smoke after ini- tial operation. Heater produces a whistling noise when burner is lit. No gas to pilot. POS[...]

44D0060 35 4 7 8 11 1 2 3 5 (Manual) 5 (Milli-V olt) 6 9 10 10 12 13 REPLACEMENT P ARTS Failure to position the parts in accordance with these diagrams or failure to use only parts speci fi cally approved with this appliance may result in property damage or personal injury . W ARNING BURNER ASSEMBL Y[...]

36 44D0060 REPLACEMENT P ARTS LIST REPLACEMENT P ARTS ARE A V AILABLE THROUGH YOUR RET AILER. Accessories Flex Connector Flexcon 30 All Models W all Switch Kit MVWS Milli-volt only W all Thermostat Kit WT Milli-volt only Hand Held Remote RCT , RCB Milli-volt only Hand Held Thermostat Remote RCT , RCST Milli-volt only Remote Receiver Cover Ember RRC[...]

44D0060 37 6 2 3 1 4 5 (DEB24/DEB30) REPLACEMENT P ARTS ARE A V AILABLE THROUGH YOUR RET AILER. Item Description Qty DEB20 DEB24 DEB30 1 Back Log 1 44D101 1K 44D1001K 44D1006K 2 Right Center Log 1 44D1022 44D1020 44D1024K 3 Left Center Log 1 44D1023 44D1021 44D1025 4 Middle Front Log 1 44D1012K 44D1002K 44D1007K 5 Left Front Log 1 N/A 44D1003K 44D1[...]

NOTES NOTE REGARDING VENTED PRODUCTS This product must be installed by a licensed plumber or gas fi tter when installed within the Commonwealth of Massachu- setts. Any residence with a direct vent product must have a CO detector installed in the residence. Installation of the fi replace or vented gas log in the State of Massachusetts requires the[...]

SPECIAL REQUIREMENTS CONTINUED 2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions shall comply with NFP A 720 and be ANSI/UL 2034 listed and IAS certi fi ed. 3. SIGNAGE. A metal or plastic identi fi cation plate shall be permanently mounted to the exterior of the building at a [...]

40 44D0060 NOVEMBER 2007 P/N 44D0060 • Rev . 8 MONESSEN HEARTH SYSTEMS LIMITED LIFETIME W ARRANTY POLICY LIFETIME W ARRANTY 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 W ARRANTY The following componen[...]