High Altitude Installation; Gas Line Connection - Heatilator GCBC36LE Installation Instructions Manual

1. High Altitude Installation

For U.S. installation, units are tested and approved for
elevations from 0-2000 feet. When installing this unit at
an elevation above 2000 feet, National Fuel Gas Codes
require a decrease of the input rating by changing the
existing burner orifice to a smaller size. Input should
be reduced 4% for each 1000 feet above sea level.
Check with the local gas utility for proper orifice size
identification. The correct orifice is available from your
Heatilator distributor.
For Canada, units are certified for elevations from 0-
4500 feet. When installing this unit at an elevation
between 0-4500 feet in Canada, the input rating does
not need to be reduced. When installing this unit at an
elevation above 4500 feet in Canada, check with local
authorities.

2. Gas Line Connection

Remove the lower grille panel as shown in Figures 9
and 10. See Figure 11 to connect gas line. All connec-
tions must be checked for leaks with a soap and water
solution or a leak detector. Bleed the gas line to extract
any air that may have been trapped inside the pipe.
Lower Grille Panel Removal
Lower Grille Panel Removal
12-97
F. UTILITIES
Figure 9
Figure 10
OPTIONAL: SEAL AROUND GAS
LINE TO PREVENT COLD AIR LEAKAGE.
Note: The appliance and its individual shutoff
valve must be disconnected from the gas supply
piping system during any pressure testing of that
system at test pressures in excess of 1/2 psi (3.5
kPa). The appliance must be isolated from the
gas supply piping system by closing its individ-
ual manual shutoff valve during any pressure
testing of the gas supply piping system at test
pressures equal to or less than 1/2 psi (3.5 kPa).
9i
Figure 11
Gas Line
28887A