Hearth and Home Technologies GATEWAY - Manual (Page 25)

Heat & Glo • Gateway • 288-900 Rev. W • 10/08 25
USE A WRENCH
ON SHUT-OFF
VALVE WHEN
TIGHTENING
GAS LINE
GAS
VALVE
FLEX
CONNECTOR
MANUAL
SHUT-OFF
VALVE
GAS LINE
ACCESS
CONTROL
VALVE
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).
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.
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.
C. Gas Connection
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.
9 9
Gas Information
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.
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.
Pressure requirements for appliance are shown in the
table below. Minimum pressures must be met when other
household gas appliances are operating.
Refer to Reference Section 16 for location of gas line
access in appliance.
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.
WARNING
WARNING
Pressure Natural Gas Propane
Minimum inlet pressure
5.0 inches
w.c.
11.0 inches
w.c.
Maximum inlet gas pressure
14.0 inches
w.c.
14.0 inches
w.c.
Manifold pressure
3.5 inches
w.c.
10.0 inches
w.c.
WARNING
Figure 9.1 Gas supply line