Desa CD36TN-M Continued, pilot assembly, Burner Flame Pattern, Burner orifice conversion

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pilot assembly

Operating fireplace

Continued

The blower helps distribute heated air from the fireplace. Periodically check the louvers of the firebox and remove any dust, dirt or other obstructions that will hinder the flow of air.

Inspecting Burners

Check pilot flame pattern and burner flame pat- terns often.

pilot assembly

The pilot assembly is factory preset for the proper flame height. Alterations may have occurred dur- ing shipping and handling. Call a qualified service person to readjust the pilot if necessary.

The position and pattern of the pilot flames in relation to the sensing devices should be as shown in Figure 52.

If you pilot assembly does not meet these requirements:

turn fireplace off (see To Turn Off Gas to Ap- pliance, page 28)

see Troubleshooting, page 35

Thermopile

3/8" to 1/2"

•see Troubleshooting, page 35 Pilot Burner Figure 52 - Pilot Assembly (Millivolt) 1/8"

BURNER FLAME PATTERNThermocouple

Piezo

Ignitor

Figure 52 - Pilot Assembly (Millivolt)

BURNER FLAME PATTERN

Burner flames will be steady; not lifting or floating. Flame patterns will be different from unit to unit and will vary depending on installation type and weather conditions.

If the vent configuration is installed incorrectly, the flames will lift or "ghost". This can be danger- ous. Inspect the flames after installation to ensure proper installation and performance.

Figure 53 shows a typical flame pattern.

If burner flame pattern differs from that de- scribed:

turn fireplace off (see To Turn Off Gas to Ap- pliance, page 28)

see Troubleshooting, page 35

Figure 53 - Typical Flame Pattern

Conversion

Instructions

The conversion kit must be installed by a qualified service agency.

The conversion kit is packaged with the unit. Please check contents before beginning this conversion.

Before proceeding, make sure gas control valve is in the OFF position, all electrical power to appli- ance is off and fireplace is cool to the touch.

Remove glass door to access the log and burner assembly as follows:

1.Remove lower louver panel (see Removing Lower Louver Access Panel, page 26).

2.Remove top louver trim panel (see Removing Top Louver Trim Panel, page 26).

3.Remove glass door panel (see Removing Glass Door, page 25).

Burner orifice conversion

1.Remove top, rear and base logs, see Figure 54, page 32.

2.Remove two screws holding pilot bracket to rear of burner pan. (see Figure 54, page 32).

3.Remove two screws holding rear log stand to rear panel of firebox (see Figure 54, page 32).

4.Expose main burner orifice by lifting burner pan assembly off orifice mount.

5.Use a 1 1/8" wrench on bulkhead fitting and an 11/16" wrench to remove main burner orifice (see Figure 55, page 32).

6.Apply thread sealant to make end of the #55 main burner orifice included with kit and remount orifice into bulkhead fitting.

118531-01A

www.desatech.com

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Contents WHAT TO DO IF YOU SMELL GAS Table of Contents Safety Information Product Identification Safety informationContinued Location and space requirements Product FeaturesPre-Installation Preparation Local CodesClearances Figure 3 - Fireplace Bottom DimensionsContinued Packaging and RemovalFigure 5 - Framing Clearances for Corner InstallationFigure 6 - Unit Dimensions ContinuedMANTEL CLEARANCES ContinuedOutside Corner D E B LFigure 9 - Minimum Clearances for Termination Cap Inside CornerVenting Installation Instructions Figure 10 - Vent Pipe Connections Venting Installation instructionsINSTALLATION PLANNING ContinuedStandoff Vent Cap Apply Mastic to All Four Sides Figure 12 - Installing Siding StandoffFigure 13 - Installing Outer Wall Firestop Inner Wall FirestopClearance at Ground Floor Installation Configuration For Corner InstallationUsing One 90 Elbow Configuration with Vertical Rise and One 90 ElbowContinued HORIZONTAL VENT INSTALLATIONSContinued Installation for vertical terminationFlat Ceiling Installation Figure 20 - Installing FirestopContinued Thimble InstallationVertical Termination Configurations for Top Vent Figure 21 - Installing Thimble with FirestopFigure 23 - Vertical Venting parts list for venting kits and componentsConfiguration Using Two 90 Elbows ContinuedDescription ContinuedELECTRICAL SUPPLY CONNECTION NumberFirebox Millivolt Models Installing optional blower accessoriesFigure 27 - Blower Model BK Figure 28 - Attaching Speed Control toContinued Model BKT InstallationFigure 30 - Blower Model BKT Continued Wiring DiagramsFigure 31 - Blower Wiring Diagram for Figure 32 - Millivolt Ignition Wiring DiagramFigure 34 - Attaching Alkaline Battery to Installing optional wall Mount Switch - gwmS2Figure 33 - Connecting Wall Switch to Installing Remote ReceiverCheck Gas Type Installing Gas Piping to Fireplace LocationInstallation Items Needed ContinuedPressure Testing Gas Supply Piping System CONNECTING FIREPLACE TO GAS SUPPLYInstallation Items Needed Figure 39 - Connecting Flexible Gas LineNatural Gas Fireplace Removing/Replacing Glass DoorFigure 40 - Equipment Shutoff Valve Figure 42 - Checking Gas Joints forRemoving Top Louver Trim Panel Removing Lower Louver Access PanelFigure 43 - Removing Lower Louver Access Panel ContinuedFigure 45 - Removing/Replacing Glass Door Installing LOGS, lava rock and glowing embersFigure 46 - Installing Logs ContinuedTO TURN OFF GAS TO APPLIANCE for your safety Read before lightingOperating Fireplace lighting instructionsoptional Hand-Held REMOTE OPERATION MANUAL LIGHTING PROCEDUREFigure 49 - Setting the Selector Switch ContinuedRemote Control Unit HRC200 operating optional blower accessorySafety Features Auto Shutoff Featuresee Troubleshooting, page pilot assemblysee Troubleshooting, page Figure 52 - Pilot Assembly MillivoltPilot Orifice Conversion Figure 54 - Removing Logs and Burner AssemblyFigure 56 - Adjusting Air Shutter ContinuedGLASS DOOR Cleaning and MaintenanceConversion Instructions Gas Control Conversionlogs CAUTION: Do not vacuum if pieces are hotContinued pilot and burnersREMEDY TroubleshootingOBSERVED PROBLEM POSSIBLE CAUSEPOSSIBLE CAUSE TROUBLESHOOTINGOBSERVED PROBLEM ContinuedWARNING If you smell gas Shut off gas supply Continued OBSERVED PROBLEMParts Under Warranty Parts Not Under WarrantyTHERMOSTATICALLY - CONTROLLED BLOWER KIT - BKT WALL MOUNTED ON/OFF SWITCH GWMS2 Not ShownWhen Gas Pressure Is Too Low MANUAL BLOWER KIT - BKIllustrated Parts Breakdown Fireplace Assembly for Model CD36TN-MFIREPLACE ASSEMBLY FOR MODEL CD36TN-M PARTS LISTIllustrated parts breakdown BURNER ASSEMBLY FOR MODEL CD36TN-M1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 BURNER ASSEMBLY FOR MODEL CD36TN-MKEEP THIS WARRANTY Warranty InformationLIMITED WARRANTY DIRECT-VENTFIREPLACE