Monessen Hearth DEB20 Operations Instructions

READ AND SAVE THESE INSTRUCTIONSMODELS: DEB20, DEB24, DEB30Natural Gas or Propane/LPGControl Type: Manual or Milli-VoltUNVENTED GAS LOG HEATER OR VENT

10 44D0060ACDB Model A B C D DEB20 18" 131/ 4" 27" 17" DEB24 221/ 4" 131/ 4" 281/ 2" 17" DE

44D0060 11 Height of Restriction (X) Minimum Depth of Fireplace/Firebox No restriction 131/ 4" 0 to 11/2" 16" From 11/2"

12 44D006016"42"CLEARANCES AND HEIGHT REQUIREMENTSSidewall and ceiling clearances: The sides of the fireplace opening must be at least 16&q

44D0060 13MeasurethisdistanceHeater inFireplace orFireboxHeatResistantMaterialFigure 5 - Measuring Heat Resistant MaterialHeat resistant material (mi

14 44D0060Heater inFireplace orFirebox8" or More ofHeat ResistanMaterialHoodCLEARANCES and HEIGHT REQUIREMENTSFigure 6 - Measuring Heat Resistan

44D0060 15Heater inFireplace orFireboxHeatResistantMaterial10"8"6"21/2"8" 14" 201/2"245/8"28"Heater inFi

16 44D0060Heater inFireplace orFireboxHeatResistantMaterial10" or less12" min. 28"21/2"8"6"7"141/2"4"Fig

44D0060 17Heater inFireplace orFirebox5" MinimumCombustibleMaterial14" MinimumHeater inFireplace orFireboxCombustibleMaterialThis DistanceM

18 44D0060Damper StopDamperFigure 13 - Damper Stop Installation.(See WARNING at top of next page.)FIREPLACE PREPARATIONBEFORE FULLY INSTALLING THE UN

44D0060 19INSTALLING VENTED APPLICATIONSPLACING AND SECURING APPLIANCEASSEMBLY PROCEDURE: 1. Center the gas log unit in the fireplace or firebox. M

2 44D0060CONTENTSImportant Safety Information ...3Getting Started ...

20 44D0060Pipe CouplingTo Heater ValveGas Supply Inlet CONNECTING THE GASNOTICE: A qualifi ed gas appliance installer must connect the heater to the g

44D0060 21CHECKING GAS PRESSUREThe heater gas inlet connection is a 3/8" NPT at the valve. On all control type units, the inlet connection is on

22 44D0060ELECTRICAL WIRING (MILLI-VOLT)The milli-volt valve is a self-powered combination gas control THAT DOES NOT REQUIRE 110 VAC TO OPER-ATE.CONN

44D0060 23HIGHLOW26D3317THERMOSTATSETTINGHIGHLOW26D3317THERMOSTATSETTINGELECTRICAL WIRING (MILLI-VOLT)CONNECTING REMOTE RECEIVER 1. Connect the con

24 44D0060HIGHLOW26D3317THERMOSTATSETTINGELECTRICAL WIRING (MILLI-VOLT) 5. Route wiring harnesses through large hole on side of unit. Mount bracket

44D0060 25HIGHLOW26D3317THERMOSTATSETTINGA. COMPLETE MILLI-VOLT SYSTEM CHECK (“A” Reading - Thermostat contacts CLOSED - Control Knob “ON” - Mai

26 44D0060LOG PLACEMENTINSTALLING LOGS ON GRATE (See Figures 25 and 26 ) NOTE: Model DEB18 has 4 logs and models DEB24 and DEB30 have 5 logs.1. Ins

44D0060 27PLACING THE DECORATIVE ROCK DO NOT sprinkle volcanic rock on the logs, around the pilot, or on or near burners. This may cause sooting. Pla

28 44D0060In normal operation at full rate after 15 minutes, the following fl ame appearances should be observed:Figure 31 - Correct Appearance of Rea

44D0060 29Figure 32 - Location of Piezo Ignitor, Control Knobs and Switch on Milli-volt and Manual UnitsA. This appliance is equipped with a piezo i

44D0060 3IMPORTANT SAFETY INFORMATION10. This unit complies with ANSI Z21.11.2-2001 Unvented Heaters and also complies with ANSI Z21.60-2000 Deco-ra

30 44D0060PushPushRotateRotateRotateOPERATING INSTRUCTIONSFigure 33 - IGN PositionFigure 34 - HIGH Position Figure 35 - LOW Position1. STOP! Read th

44D0060 31OPERATING INSTRUCTIONS 1. STOP! Read the safety information label. 2. Make sure the manual shutoff valve is fully open. 3. This gas l

32 44D0060OPERATING INSTRUCTIONS AND CLEANING AND SERVICING CLEANING AND SERVICINGAnnual inspection and cleaning by your dealer or qualifi ed service

44D0060 33OBSERVED PROBLEMWhen ignitor button is pressed, there is no spark at ODS/pilot.Appliance produces unwanted odors.Appliance shuts off during

34 44D0060OBSERVED PROBLEMODS/pilot lights, but flame goes out when control knob is released.Burner does not light after ODS/pilot is lit.Burner back

44D0060 35478111235 (Manual)5 (Milli-Volt)6910101213REPLACEMENT PARTSFailure to position the parts in accordance with these diagrams or failure to us

36 44D0060REPLACEMENT PARTS LIST REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. Accessories Flex Connector Flexcon 30 All Models Wall S

44D0060 37623145 (DEB24/DEB30)REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. Item Description Qty DEB20 DEB24 DEB30 1 Back Log 1 4

NOTES NOTE REGARDING VENTED PRODUCTSThis product must be installed by a licensed plumber or gas fi tter when installed within the Commonwealth of Massa

SPECIAL REQUIREMENTS CONTINUED2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisio

4 44D0060IMPORTANT SAFETY INFORMATIONContinued from page 316. Keep room area clear and free from combustible materi-als, gasoline and other flammabl

40 44D0060NOVEMBER 2007 P/N 44D0060 • Rev. 8MONESSEN HEARTH SYSTEMS LIMITED LIFETIME WARRANTY POLICYLIFETIME WARRANTYThe following components are wa

44D0060 5MAKE SURE YOU HAVE RECEIVED ALL PARTS:Check your packing list to verify that all listed parts have been received. You should have the follow

6 44D0060PRODUCT FEATURES AND SPECIFICATIONS Gas Rate Model Number Control Max BTU/Hr Min BTU/Hr DEB20NM MANUAL 28,000 18,000DEB24NM MANUAL 38,

44D0060 7IGNITION CONTROLS Piezo ignitor allows ignition of the pilot without the use of matches or batteries. Manual control has three (3) position

8 44D0060GENERAL INSTALLATION INFORMATIONCODESAdhere to all local codes or, in their absence, the latest edition of THE NATIONAL FUEL GAS CODE ANSI Z

44D0060 9WHThe following formula can be used to determine the maximum heater rating per the definition of unconfined space:BTU/Hr = (L1 + L2) Ft x (W