Hearth and Home Technologies CFX-Crescent owner manual SL-45D SL-90D 17-24 11 3/4

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	6 1/2	6 3/8
		6 3/8
9 1/4
		6 1/2	9 5/8
6 5/8		6 3/8
6 5/8

SL-45D

6 5/8

9 5/8

SL-90D

17-24

11 3/4

6 1/2

		5 3/4
		6 5/8
SL-17/24D	SL-12D	SL-06D
(SL17-24D)	SL-12D	SL-06D

47 3/4

35 3/4

23 3/4

12-17

8 3/4

SL-09D

SL-12/17D (SL12-17D)

SL-24D

SL-36D

SL-48D

Note: Pipes overlap 1 3/8 inches (34.93mm) at each joint.

Figure 5. SL-Series Direct Vent Component Specifications (4-inch inner pipe/6 5/8-inch outer pipe)

14	Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07

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Contents Installation and Operation Model CFX-CrescentSafety and Warning Information Approvals and Codes Table of ContentsSection Installing the Fireplace Getting StartedLog Set Assembly CFX-CrescentService Parts List CFX-Crescent At DepotPre 002182991 Valve Assembly Post 002182991 Valve AssemblyApprovals and Codes Installation CodesHigh Altitude Installations CodesInstallation of Carbon Monoxide Detectors Requirements for the Commonwealth of MassachusettsGetting Started Diagram of the CFX-CRESCENT Clearance Requirements Installing the FireplaceLocating the fireplace 66 5/8 33 1/4 47 1/8 19 5/8 35 1/2Framing Dimensions Step Framing FireplaceVent System Approvals Identifying Vent ComponentsSL-45D SL-90D 17-24 11 3/4 Straight UP Venting with eight 8 90 Elbows Attach the First Vent Component to the Starting Collars Attaching the First Vent Component to the Starting CollarsAdding Venting Components Install Support Brackets Continue Adding Vent ComponentsInstalling Support Brackets 4. Install Firestops 10 Hole and Vent Pipe 9 Hole & New Framing Members Attic Firestop Vent Termination Trapezoid Termination Cap Vent Termination Minimum Clearances This also pertains to vertical vent systems installed Minimum Height from Roof to Lowest Discharge Opening Intermittent Pilot Ignition IPI System Step Positioning Leveling, Securing FireplaceStep Gas Control System Step Gas Supply Line Gas Supply LinePressure Natural Gas Propane Step Gas Pressure Requirements Wiring FireplaceIntermittent Pilot Ignition IPI Wiring Appliance RequirementsOptional Accessories Wall SwitchWSK-MLT Hearth Extensions Sealant MaterialInstalling the Trim Removing Glass DoorPlacing the Ember Material and Lava Rock Positioning the LogsSave the log instructions with this manual Double-check for gas leaks Step Before Lighting Fireplace After InstallationDouble-check for faulty components Double-check vent terminationsFireplace Maintenance Maintaining and Servicing Your FireplaceBurner Flame Patterns Contact Information