Monessen Hearth 7000 Series Maintenance, Standing-Pilot Flame Only, Burner Flame

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MAINTENANCE

MAINTENANCE

WARNING

Turn off gas before servicing fireplace. It is recommended that a qualified service technician perform these

check-ups at the beginning of each heating season.

The appliance area must be kept clear and free from combustible materials, gasoline and other flammable

vapors and liquids. The flow of combustion and ventilation air must not be obstructed.

Burner, Pilot and Control Compartment:

Keep the control compartment, logs, and burner areas surrounding the logs clean by vacuuming or brushing at least twice a year. Make sure the pilot air intake is free of obstructions at all time.

Standing-Pilot Flame Only:

The flames from the pilot should be visually checked as soon as the heater is installed and periodically during normal operation. The pilot flame must always be present when the fireplace is in operation. Refer to Figure 23: Pilot Flame Appearance. The pilot flame has three distinct flames, one engulfing the thermopile, one engulfing the thermocouple (which is not connected to the valve), and the other reaching to the main burner.

Burner Flame:

Thermopile

Figure 23: Pilot Flame Appearance

The flames from the burner should be visually checked as soon as the heater is installed and periodically during normal operation. In normal operation, at full rate, and after approximately 15-30 minutes, the flame appearance in Figure 24: Burner Flame Appearance should be observed.

NOTE

The type of installation, vent system configuration, and wind effects may cause the flame patterns to vary.

Figure 24: Burner Flame Appearance

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Contents Series Table of Contents Important Safety Information Important Safety InformationAlways Burn Propane Models with Doors Closed Listing & Code Approval Product SPECIFICATIONS/LISTING & Code ApprovalModel LAB Type Certification Standard PRE-INSTALLATION Information ContentsItems Required For Installations Tools Building Supplies Before You StartFireplace Dimensions PRE-INSTALLATION Information Combustible Clearances Mantel Clearances Mantel Clearance Floor ClearancesCombustible Vent Installation Vertical Venting Straight up No ElbowPiping Installations Vertical Venting with Two 2 45 Degree ElbowTo Locate and Install Ceiling Firestop Ceiling Firestop Location Vent Termination For Vertical TerminationTo Locate and install Vertical Termination Outside Air Kit InstallationGAS Line and Electrical Installation Do not use open flame to check for gas leaksStanding Pilot Ignition Wiring-Millivolt Control Remote Wall SwitchMillivolt Control Valve Checklist Optional DC Remote SystemsThermopile Output Check Complete Millivolt System CheckElectronic Pilot Ignition Wiring Wiring Diagram for Electronic Ignition SystemGAS Line and Electrical Installation Rock Wool Placement Lava Rock PlacementWall Finishing DefinitionsLog Placement for fiber VDY24/18D3R Log PlacementDoor Rail Installation Damper Operation Hi Temperature Cut Off Disc Operating Instructions Before Lighting the FireplaceLighting the Fireplace You may notice the followingLighting Instructions Millivolt Control For Your Safety Read Before LightingTo Turn OFF GAS to Appliance Lighting Instructions Electronic IGN Standing-Pilot Flame Only MaintenanceBurner Flame Vent System Soot cleaning fluid may be used on refractory logsGlass Door Parts List / Illustration Parts List / IllustrationsVDY24/18D3R Description 4536 5142 Engine Components Conversion Kit Not Shown for Millivolt-Control OnlyConversion Kit Not Shown for Electronic Ignition Page Electronic Ignition General Troubleshooting Limited Lifetime Warranty Policy 41D2002 Rev 5 April