Gas Information; Fuel Conversions; Section 9: Gas Information A. Fuel Conversions; Gas Pressures - Heat & Glo SL-550TV-D Owner's Manual

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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 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 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 pressure must be met when other
household gas appliances are operating.
Pressure Natural Gas
Minimum Inlet
Pressure
Maximum Inlet 14.0 inches
Gas Pressure
Manifold Pressure
Propane
5.0 inches 11.0 inches
w.c. w.c.
14.0 inches
w.c. w.c.
3.5 inches 10.0 inches
w.c. w.c.
Heat & Glo • SL-550 / 750 / 950TV-D • 2053-985 Rev. H • 9/06
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
approved) 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 the supply piping and gas access
hole may be caulked with high temperature caulk or stuffed
with non-combustible, un-faced insulation to prevent cold
air infi ltration.
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