GC9C80 Installation Manual
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A gas detecting warning system is the only reliable way to
detect a propane gas leak. Rust can reduce the level of
detecting warning system. If the presence of gas is suspect-
ed, follow the instructions listed in the Safety Considerations
section of this manual.
All propane gas equipment must conform to the safety stan-
Manual 58.
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eration. Maintaining proper gas pressure depends on three
main factors:
1.
liquid, and “wetted surface” area of the con tainer or
containers.
2. Proper pressure regulation (Two-stage regulation is
3. Pressure drop in lines between regulators, and between
second stage regulator and the appliance. Pipe size
will depend on length of pipe run and total load of all
appliances.
recommended regulator settings, and pipe sizing is avail-
able from most regulator manufacturers and propane gas
suppliers.
Since propane gas will quickly dissolve white lead and most
standard com mercial compounds, special pipe dope must
be used. Always use a pipe thread sealant approved for all
gases.
Refer to the this illustration for typical propane gas installa-
tions and piping.
Install the duct system in accordance with Standards of the
Pamphlets No. 90A and 90B.
A closed return duct system must be used, with the return
duct connected to the furnace.
be attached to the back of the furnace.-
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ible joints may be used for supply and return con nections to
reduce noise transmission. To prevent the blower from inter-
fering with combustion air or draft when a central return is
used, a connecting duct must be installed between the unit
and the utility room wall. Never use a room, closet, or alcove
as a return air chamber.