Hearth and Home Technologies II-B Gas Information, Fuel Conversions Gas Connection, Gas Pressures

6 Gas Information

A. Fuel Conversions C. Gas Connection

Before making gas connections ensure that appliance be- ing installed is compatible with the available gas type.

Any natural or propane gas conversions necessary to meet the appliance and locality needs must be made by a qualified technician using Hearth & Home Technologies specified and listed gas conversion kit.

NOTE: Have the gas supply line installed in accordance with local building 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.)

B. Gas Pressures

Proper input pressures are required for optimum appliance performance. Gas line sizing requirements need to be made following NFPA51.

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.

WARNING

Verify inlet pressures.

• High pressure may cause overfire condition.

• Low pressure may cause explosion.

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

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

NOTE: A listed (and Commonwealth of Massachusetts ap- proved) 1/2 inch (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.

Refer to Reference Section 13 for location of gas line ac- cess in appliance.

NOTE: Gas line may be run from either side or the bottom of the appliance provided the hole in the outer wrap does NOT exceed 2-1/2 inches in diameter and does not penetrate the firebox.

WARNING

Gas Leak Risk

•Support control when attaching pipe to prevent bending gas line.

NOTE: The gap between the 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.

Pressure requirements for appliance are shown in the table below. Minimum pressures must be met when other household gas appliances are operating.

Pressure	Natural Gas	Propane
Minimum	5.0 inches	11.0 inches
Inlet Pressure	w.c.	w.c.
Maximum Inlet	14.0 inches	14.0 inches
Gas Pressure	w.c.	w.c.
Manifold	3.5 inches	10.0 inches
Pressure	w.c.	w.c.

Heat & Glo LifeStyle Collection • Twilight-II-B • 2108-900 Rev. G • 8/07 15