Gas Information; Fuel Conversions; Gas Pressures; Gas Connection - Heat & Glo SL-950TR-E Owner's Manual

Direct vent gas appliance heater
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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 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
Natural Gas
Minimum
Inlet Pressure
Maximum Inlet
14.0 inches
Gas Pressure
Manifold
Pressure
42
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 / 950TR-E • 2118-900 Rev. K • 9/08
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 supply piping and gas access hole
may be caulked with high temperature caulk or stuffed with
non-combustible, unfaced insulation to prevent cold air in-
fi ltration.
• 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 com-
partment and connected to the 1/2 inch connection on
the manual shutoff valve.
WARNING
Fire or Explosion Hazard
• Gas buildup during line purge may ignite.
• Purge should be performed by qualifi ed technician.
• Ensure adequate ventilation.
• Ensure there are no ignition sources such as
sparks or open fl ames.

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