Gas Information; Fuel Conversions; Section 9: Gas Information A. Fuel Conversions; Gas Pressures - Heat & Glo Crescent II Owner's Manual

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Gas Information

A. Fuel Conversions
Before making gas connections ensure that appliance
being 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 quali-
fied technician using Hearth & Home Technologies speci-
fied and approved parts.
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.
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
Minimum 5.0 inches
Inlet Pressure
Maximum Inlet 14.0 inches
Gas Pressure
Manifold 3.5 inches
Pressure
Propane
11.0 inches
w.c. w.c.
14.0 inches
w.c. w.c.
10.0 inches
w.c. w.c.
Heat & Glo • Crescent II • 2083-902 Rev. G • 9/05
C.

Gas Connection

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.)
NOTE: A listed (and Commonwealth of Massachusetts ap-
proved) 1/2 inch (13mm) T-handle manual shut-off valve and
flexible gas connector are connected to the 1/2 inch (13mm)
control valve inlet.
• If substituting for these components, please consult
local codes for compliance.
Refer to Reference Section 16 for location of gas line ac-
cess in appliance.
NOTE: Gas line may be run from either side 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.
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