GM9S80 Installation Manual
13
peated wetting by liquids such as water (except rain
water), detergents, or sewage.
Gas line
entrance
Right side
gas entrance
(alternate)
When the gas piping enters through the side of the furnace,
the gas valve):
•
• 90 degree elbow.
• Straight pipe to reach the exterior of the furnace.
also be supplied by the installer. In some cases, the installer
may also need to supply a transition piece from ½” to anoth-
er pipe size.
When the gas piping enters through the left side of the fur-
from the gas valve):
• 90 degree elbow.
• Straight pipe to reach the exterior of the furnace.
•
must also be supplied by the installer. In some cases,
the installer may also need to supply a transition piece
from ½ inch to another pipe size.
When the gas piping enters through the left side of the fur-
nace, the installer must supply a straight pipe and a 90 de-
gree elbow to reach the exterior of the furnace.
also be supplied by the installer. In most cases, the installer
may also need to supply a transition piece from ½” to anoth-
er pipe size. When the gas piping enters through the right
side of the furnace, the installer must supply the following
•
•
•
Before placing unit in operation, leak test the unit and gas
connections.
water solution, an electronic combustible gas detector, or
other approved testing methods.
pressure may cause gas valve failure.
piping system before pressure testing the supply piping sys-
tem with pressures in excess of ½ psig (3.48 kPa).
This unit must be isolated from the gas supply system by
gas supply piping system with test pressures equal to or less
than ½ psig (3.48 kPa).
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 on Page 3 of this manual.
All propane gas equipment must conform to the safety stan-
Manual 58.
in operation. 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.