Heat & Glo • 350X-AU, 550X-AU Installation Manual • 2279-980
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A. Fuel Conversion
• Make sure the appliance is compatible with available gas
types.
• Conversions must be made by a qualified service
technician using Hearth & Home Technologies specified
and approved parts.
B. Gas Pressure
• Optimum appliance performance requires proper input
pressures.
• Pressure requirements are:
WARNING! Risk of Fire or Explosion!
High pressure
will damage valve. Low pressure could cause explosion.
• Verify inlet pressures. Verify minimum pressures when
other household gas appliances are operating.
• Install regulator upstream of valve if line pressure is
greater than 3.4 kPa.
9
Gas Information
Gas Pressure
Natural Gas Propane Butane
Minimum inlet pressure
1.13 kPa
2.75 kPa 2.75 kPa
Maximum inlet pressure
3.4 kPa
3.4 kPa
3.4 kPa
Manifold pressure
0.87 kPa
2.40 kPa 2.40 kPa
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
D. High Altitude Installations
NOTICE:
If the heating value of the gas has been reduced,
these rules do not apply. Check with your local gas utility
or authorities having jurisdiction.
When installing above 2000 ft. (610 m) elevation:
Reduce input rate 4% for each 1000 ft. (305 m) above
2000 ft. (610 m).
Note:
This appliance does include a manual gas shutoff
valve that is located in the valve compartment. This manual
gas shutoff valve is accessible for service by removing the
decorative front. The valve is most accessible if it is located
forward in the control cavity of the appliance.
Depending upon local code, an additional manual gas
shutoff, in a readily accessible area may be required and
located upstream from the appliance.
C. Gas Service Access