Table of Contents
Advertisement
9 9
Gas Information
A. Fuel Conversions
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 qualifi ed technician using Hearth & Home Technologies
specifi ed and approved parts.
B. Gas Pressures
Proper input pressures are required for optimum appli-
ance performance. Gas line sizing requirements need to
be made following NFPA54.
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 overfi re 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
Minimum inlet pressure
Maximum inlet gas pressure
Manifold pressure
26
Natural Gas
Propane
5.0 inches
11.0 inches
w.c.
w.c.
14.0 inches
14.0 inches
w.c.
w.c.
3.5 inches
10.0 inches
w.c.
w.c.
Heat & Glo • Crescent II • 2083-902 Rev. N • 7/09
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 qualifi ed 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 fi tter).
Note: A listed (and Commonwealth of Massachusetts ap-
proved) 1/2 inch (13 mm) T-handle manual shut-off valve and
fl exible 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 16 for location of gas line
access 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 fi rebox.
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 caulked with high temperature caulk or stuffed
with non-combustible, unfaced insulation to prevent cold air
infi ltration.
Advertisement
Table of Contents
