Hearth and Home Technologies ST-550TM-IPI Gas Information, Fuel Conversion, Gas Pressure

Page 42

11 Gas Information

A. Fuel Conversion

Make sure the appliance is compatible with available gas types.

Conversions must be made by a qualified service technician using Hearth & Home Technologies specified and approved parts.

B. Gas Pressure

Optimum appliance performance requires proper input pressures.

Gas line sizing requirements will be determined in ANSI Z223.1 National Fuel Gas Code in the USA and CAN/ CGA B149 in Canada.

Pressure requirements are:

Gas Pressure

Natural Gas

Propane

Minimum inlet pressure

5.0 in. w.c.

11.0 in. w.c.

Maximum inlet pressure

14.0 in. w.c.

14.0 in. w.c.

Manifold pressure

3.5 in. w.c.

10.0 in. w.c.

C. Gas Connection

Refer to Reference Section 16 for location of gas line access in appliance.

Gas line may be run through knockout(s) provided.

The gap between supply piping and gas access hole may be caulked with high temperature caulk or stuffed with non-combustible, unfaced insulation to prevent cold air infiltration.

Ensure that gas line does not come in contact with outer wrap of the appliance. Follow local codes.

Pipe incoming gas line into valve compartment.

Connect incoming gas line to the 1/2 in. (13 mm) connection on manual shutoff valve.

WARNING! Risk of Fire or Explosion! Support control when attaching pipe to prevent bending gas line.

• A small amount of air will be in the gas supply lines.

WARNING! Risk of Fire or Explosion! Gas build-up dur- ing line purge could ignite.

WARNING! Risk of Fire/Explosion! High pressure will damage valve. Low pressure may cause explosion.

Verify inlet pressures. Verify minimum pressures when other household gas appliances are operating.

Install regulator upstream of valve if line pressure is greater than 1/2 psig.

WARNING

Fire Risk. Explosion Hazard.

High pressure will damage valve.

• Disconnect gas supply piping BEFORE pressure testing gas line at test pressures above 1/2 psig.

Close the manual shutoff valve BEFORE pressure testing gas line at test pressures equal to or less than 1/2 psig.

Note: Have the gas supply line installed in accordance with local codes, if any. If not, follow ANSI 223.1. Installation should be done by a qualified installer approved and/or licensed as required by the locality. (In the Commonwealth of Massachusetts installation must be performed by a licensed plumber or gas fitter).

Note: A listed (and Commonwealth of Massachusetts ap- proved) 1/2 in. (13 mm) T-handle manual shut-off valve and flexible gas connector are connected to the 1/2 inch (13 mm) control valve inlet.

If substituting for these components, please consult local codes for compliance.

Purge should be performed by qualified service technician.

Ensure adequate ventilation.

Ensure there are no ignition sources such as sparks or open flames.

Light the appliance. It will take a short time for air to purge from lines. When purging is complete the appliance will light and operate normally.

WARNING! Risk of Fire, Explosion or Asphyxiation! Check all fittings and connections with a non-corrosive commercially available leak-check solution. DO NOT use open flame. Fittings and connections could have loos- ened during shipping and handling.

WARNING! Risk of Fire! DO NOT change valve settings. This valve has been preset at the factory.

D. High Altitude Installations

NOTICE: If the heating value of the gas has been reduced, these rules do not apply. Check with your local gas utility or authorities having jurisdiction.

When installing above 2000 feet elevation:

In the USA: Reduce burner orifice 4% for each 1000 feet above 2000 feet.

In the CANADA: Reduce burner orifice 10% for elevations between 2000 feet and 4500 feet. Above 4500 feet, consult local gas utility.

42

Heat & Glo • ST-550TM-IPI2142-900 Rev. B • 11/08

Image 42
Contents Models What to do if you smell gasCongratulations Homeowner Reference InformationTable of Contents User GuideFinishing Appliance SetupTroubleshooting Reference MaterialsCONDITIONS, Exclusions & Limitation of Liability Limited Lifetime Warranty Listing and Code Approvals Installation of Carbon Monoxide Detectors Requirements for the Commonwealth of MassachusettsGas Fireplace Safety Operating Instructions User GuideYour Fireplace Clear Space Fixed Glass AssemblyRemote Controls, Wall Controls and Wall Switches Decorative Doors and FrontsLighting Instructions IPI Final inspection byFrequently Asked Questions After Fireplace is LitGlass Cleaning Maintenance and ServiceMaintenance Tasks-Homeowner Remote ControlGasket Seal and Glass Assembly Inspection Porcelain Firebox Panel CleaningMaintenance Tasks-Qualified Service Technician VentingBurner Ignition and Operation IPI Pilot Flame PatternsGetting Started Typical Appliance SystemDesign and Installation Considerations Tools and Supplies NeededInspect Appliance and Components Framing and Clearances Selecting Appliance LocationConstructing the Appliance Chase ClearancesNon-Combustible Mantel Fireplace OpeningTermination Locations Vent Termination Minimum ClearancesCovered Alcove Applications Install Support Brackets To Install the Heat ShieldContinue Adding Vent Components Vent Table Key Vent Information and DiagramsApproved Pipe Use of ElbowsUse of Flex Vent Vent Diagrams Top Vent Horizontal Termination One ElbowV1 Minimum H1 Maximum Top Vent Horizontal Termination Two Elbows V1 Minimum H1 + H2 MaximumTop Vent Horizontal Termination Three Elbows V1 Minimum H1 + H2 Maximum V1 + V2 MinExhaust restrictor Instructions Two Elbows Three Elbows Minimum Maximum + V 2 MinV1 Minimum Maximum V1 + V2 Min Wall Penetration Framing Vent Clearances and FramingPipe Clearances to Combustibles Combustible Wall PenetrationInstall the Ceiling Firestop Pipe SLPInstall Attic Insulation Shield Flat Ceiling InstallationVaulted Ceiling Installation Appliance Preparation Securing and Leveling the ApplianceInstalling Vent Pipe Assemble Vent SectionsAssemble Slip Sections Secure the Vent SectionsInstall Decorative Ceiling Components Disassemble Vent SectionsInstall Metal Roof Flashing Assemble and Install Storm CollarInstall RF4-8 Apply Sealant TOP & Partial SidesInstall Vertical Termination Cap Install Decorative Wall ComponentsHeat Shield Requirements for Horizontal Termination Install Horizontal Termination Cap 22 Venting through the wallGas Pressure Gas InformationFuel Conversion Gas ConnectionOptional Accessories Requirements Wiring RequirementsIntellifire Ignition System Wiring Electrical Service and RepairIntellifire Ignition Wiring Diagram with Remote Receiver Junction Box Installation Wall Switch Installation for Fan OptionTo install the Splatter Guard FinishingSplatter Guard To Close the Lower Access Panel To Remove the Splatter GuardMantel and Wall Projections Combustible Mantel 15 Non-Combustible ZoneFacing Material Finishing MaterialWithout Front Shown Appliance Setup Install Trim Kits and Surrounds Air Shutter SettingTroubleshooting Symptom Possible Cause Corrective ActionIntellifire Ignition System Remove any contaminants that may have accumulated on Appliance Dimension Diagram Reference MaterialsVent Components Diagrams Snorkel Black Support Box-Black Wall Thimble-BlackAdapter SLP-HRC-SS SLP-HRC-ZC-SS Horizontal Termination CAP Service Parts ST-550TM-IPIService Parts List StockedAt Depot Intermittent Pilot Ignition Valve Assembly Contact Information