Gas Connection; High Altitude Installations - Heat & Glo MEZZO-1000-AU Installation Manual

D. Gas Connection
 Refer to Reference Section 3.A for location of gas
line access in appliance.
 Gas line may be run through the left side of appliance.
 The gap between supply piping and gas access
hole may be caulked with caulk with a minimum of
º
300 F continuous exposure rating or stuffed with
noncombustible, unfaced insulation to prevent cold
air infiltration.
 Ensure that gas line does not come in contact with
outer wrap of the appliance. Follow local codes.
 Pipe incoming gas line into valve compartment.
 Connect incoming gas line to the 1/2 in. (13 mm)
connection on manual shutoff valve.
WARNING! Risk of Fire or Explosion! Support control
when attaching pipe to prevent bending gas line.
 A small amount of air will be in the gas supply lines.
WARNING! Risk of Fire or Explosion! Gas build-up
during line purge could ignite.

Purge should be performed by
technician
.

Ensure adequate ventilation.

Ensure there are no ignition sources such as sparks
or open flames.
Light the appliance. It will take a short time for air to
purge from lines. When purging is complete the
appliance will light and operate normally.
WARNING! Risk of Fire, Explosion or Asphyxiation!
Check all fittings and connections with a non-corrosive
commercially available leak-check solution. DO NOT use
open flame. Fittings and connections could have loos-
ened during shipping and handling.
WARNING! Risk of Fire! DO NOT change valve
settings. This valve has been preset at the factory.
Heat & Glo • MEZZO-1000-AU, MEZZO-1300-AU, MEZZO-1300ST-AU, MEZZO-1600-AU Installation Manual • 2304-970 Rev. D • 3/15
qualified service
E. 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).
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