Broan 42H-B, 42-B Gas Information, Fuel Conversion Gas Connection, Gas Pressure, Gas Leak Risk

6 Gas Information

A. Fuel Conversion C. Gas Connection

Before making gas connections ensure appliance being in- stalled 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 quali- fied technician using Hearth & Home Technologies specified and approved parts.

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 Pressure

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

WARNING

Fire Risk

Explosion Risk

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

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

Optional: A 5 ft flexible gas line is available to those regions which do not require black pipe to be used. See Service Parts List (Section 13).

Note: Gas line MUST be run from right side of appliance.

WARNING

Fire Risk

Explosion Risk

Verify inlet pressures.

•High pressure may cause overfire condition.

•Low pressure may cause explosion.

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

Pressure requirements for		appliance are shown in table
below.
	Pressure	Natural Gas	Propane
	Minimum Inlet Pressure	5.0 inches w.c.	11.0 inches w.c.
	Maximum Inlet Pressure	7.0 inches w.c.	14.0 inches w.c.
	Manifold Pressure	3.5 inches w.c.	10.5 inches w.c.

These pressures can be verified through the internal valve access panels as shown in Section E. Valve Access.

WARNING

Gas Leak Risk

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

Note: The gap between supply piping and gas access hole may be plugged with non-combustible unfaced insulation to prevent cold air infiltration.

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

•Incoming gas line should be piped into the valve compartment and connected to the 1/2 in. connection on the manual shutoff valve.

10 Heat & Glo LifeStyle Collection • Dakota 42-B/Dakota 42H-B • 4036-909 Rev D • 08/06