Hearth and Home Technologies CD4236MILR, CD4842MR Maintenance Tasks-Qualified Service Technician

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B. Maintenance Tasks-Qualified Service Technician

The following tasks must be performed by a qualified service technician.

Gasket Seal and Glass Assembly Inspection

Frequency: Annually

By: Qualified Service Technician

Tools needed: Protective gloves, drop cloth and a stable work surface.

Inspect gasket seal and its condition.

Inspect fixed glass assembly for scratches and nicks that can lead to breakage when exposed to heat.

Confirm there is no damage to glass or glass frame. Replace as necessary.

Verify that fixed glass assembly is properly retained and attachment components are intact and not damaged. Replace as necessary.

Logs

Frequency: Annually

By: Qualified Service Technician

Tools needed: Protective gloves.

Inspect for damaged or missing logs. Replace as necessary. Refer to Section 14.J. for log placement instructions.

Verify correct log placement and no flame impingement causing sooting. Correct as necessary.

Firebox

Frequency: Annually

By: Qualified Service Technician

Tools needed: Protective gloves, sandpaper, steel wool, cloths, mineral spirits, primer and touch-up paint.

Inspect for paint condition, warped surfaces, corrosion or perforation. Sand and repaint as necessary.

Replace fireplace if firebox has been perforated.

Control Compartment and Firebox Top

Frequency: Annually

By: Qualified Service Technician

Tools needed: Protective gloves, vacuum cleaner, dust cloths

Vacuum and wipe out dust, cobwebs, debris or pet hair. Use caution when cleaning these areas. Screw tips that have penetrated the sheet metal are sharp and should be avoided.

Remove all foreign objects.

Verify unobstructed air circulation.

Burner Ignition and Operation

Frequency: Annually

By: Qualified Service Technician

Tools needed: Protective gloves, vacuum cleaner, whisk broom, flashlight, voltmeter, indexed drill bit set, and a manometer.

Verify burner is properly secured and aligned with pilot or igniter.

Clean off burner top, inspect for plugged ports, corrosion or deterioration. Replace burner if necessary.

Replace rockwool with new dime-size pieces. DO NOT block ports or obstruct lighting paths. Refer to Section 14 for proper rockwool placement.

Verify batteries have been removed from battery back- up IPI systems to prevent premature battery failure or leaking.

Check for smooth lighting and ignition carryover to all ports. Verify that there is no ignition delay.

Inspect for lifting or other flame problems.

Verify air shutter setting is correct. See Section 14 for required air shutter setting. Verify air shutter is clear of dust and debris.

Inspect orifice for soot, dirt and corrosion. Verify orifice size is correct. See Service Parts List for proper orifice sizing.

Verify manifold and inlet pressures. Adjust regulator as required.

Inspect pilot flame pattern and strength. See Figure 3.1 and 3.2 for proper pilot flame pattern. Clean or replace orifice spud as necessary.

Inspect thermocouple/thermopile or IPI flame sensing rod for soot, corrosion and deterioration. Clean with emery cloth or replace as required.

Verify thermocouple/thermopile or IPI millivolt output. Replace as necessary.

Figure 3.1 IPI Pilot Flame Patterns

Figure 3.2 Standing Pilot Flame Patterns (SIT controls)

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Heatilator • Caliber Mesh CD Series-SIT Valve • 4040-849 Rev J • 06/08

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Contents Direct Vent Gas Appliance Installation and OperationModels CD4236MR CD4842MR What to do if you smell gasCongratulations Homeowner Reference InformationUser Guide Table of ContentsInstaller Guide Reference Materials Appliance SetupTroubleshooting Gas Appliance Fireplace Limited Lifetime Warranty Limited Lifetime WarrantyListing and Code Approvals Requirements for the Commonwealth of Massachusetts Your Fireplace Gas Fireplace SafetyOperating Instructions Fan Kit optional Fixed Glass AssemblyRemote Controls, Wall Controls and Wall Switches Clear SpaceFor Your Safety Read Before Lighting Lighting Instructions IPI Pilot Lighting Standing Frequently Asked Questions After Fireplace is LitRemote Control Maintenance and ServiceMaintenance Tasks-Homeowner Doors, Surrounds, FrontsMaintenance Tasks-Qualified Service Technician Getting Started Typical Appliance SystemInspect Appliance and Components Design and Installation ConsiderationsTools and Supplies Needed Model # Framing and ClearancesSelect Appliance Location Construct the Appliance Chase ClearancesMantel Legs or Wall Projections Mantel and Wall ProjectionsMantels Termination Locations Vent Termination Minimum ClearancesMinimum Clearances for Termination Vent Table Key Vent Information and DiagramsApproved Pipe Use of ElbowsOne Elbow Vent DiagramsTop Vent Horizontal Termination Two 45 Elbows replacing One 90 Elbow Two ElbowsInstalled Vertically Three ElbowsTop Vent Vertical Termination No Elbow12 ft 3.66 m min 60 ft 18.29 m max Rear Vent Horizontal Termination One 45 ElbowTwo Elbows Rear Vent Vertical Termination Min Ft 1.83 m max 12 ft 3.66 m min 60 ft 18.29 m max Install Vertical Termination Baffle 17 Flat BaffleWall Penetration Framing Vent Clearances and FramingPipe Clearances to Combustibles Combustible Wall PenetrationInstall the Ceiling Firestop Installing Ceiling FirestopVaulted Ceiling Installation Install Attic Insulation ShieldFlat Ceiling Installation Appliance Preparation Convert from Top Vent to Rear VentOuter Collar, Remove Four Screws 11 Place Outer Collar on Rear of Appliance 16 Cover Plate-Replace Secure and Level the Appliance 20 Proper Positioning, Leveling And Securing Of AnAssemble Pipe Sections DVP Only Install Vent PipeAttach Pipe to the Firebox Assembly Assemble Pipe SectionsAssemble Vent Sections SLP Only Assemble Slip SectionsSecure the Vent Sections Disassemble Vent SectionsInstall Decorative Ceiling Components SLP only Install Metal Roof Flashing Assemble and Install Storm CollarInstall RF4-8 SLP-FSHeat Shield Requirements for Horizontal Termination Install Vertical Termination CapInstall Decorative Wall Components SLP only Install Horizontal Termination Cap InteriorGas Pressure Gas InformationFuel Conversion Gas ConnectionIntellifire Ignition System Wiring Wiring RequirementsStanding Pilot Ignition System Wiring Optional Accessories RequirementsElectrical Service and Repair WSK-MLT-HTLJunction Box Installation Wall Switch Installation for Fan OptionalCombustible FinishingFacing Material Appliance Setup Replacing Fixed Glass Assembly Install the Log AssemblyRemoving Fixed Glass Assembly Install Hood Install TrimInstall Clean Face Components Install Top Latch CoverInstall Firescreen Assembly Air Shutter SettingInstall Bottom Latch Cover Troubleshooting Standing Pilot Ignition SystemSymptom Possible Cause Corrective Action Intellifire Ignition System Will not ignite. If the pilot Appliance Dimension Diagram Reference MaterialsVent Components Diagrams DVP Vent ComponentsBEK DVP-BEK2 DVP-TVHW DVP-TRAP DVP-HRC-SS Effective SL-2DVP AdapterParts Service#22 Log/Grate Assembly CD4842M Series Parts Service CD4842M SeriesOptional Components Model # Description Contact Information