GMEC96 Installation Manual
11
Recommended Installation Positions
left or right side down. *CEC96 models may be installed
install this furnace on its back. For upright upow furnaces,
return air ductwork may be attached to the side panel(s)
and/or basepan. For horizontal upow furnaces, return
air ductwork must be attached to the basepan. For both
upright or horizontal counterow furnaces, return ductwork
must be attached to the basepan (top end of the blower
compartment). Ductwork must never be attached to
the back of the furnace. Refer to “Recommended Installa-
must be given to the following:
If suspending the furnace from rafters or joists, use 3/8” thread-
ed rod and 2”x2”x1/8” angle iron as shown in the following
diagram. The length of rod will depend on the application and
the clearances necessary.
If the furnace is installed in a crawl space it must be sus-
Never install the furnace on the ground or allow it to be
exposed to water.
2" 2" 3/8"
ANGLE
IRON
(3
PLACES
)
X X
Figure 2
the front cover pressure switch tube must be re-locaed to
he lower port of the collector box cover.
1. Remove tubefrom front cover pressure switch and
collector box cover.
2. Remove rubber plug from bottom collector box port
and install on top of collector box port.
3. Locate 24’’ x 1/4’’ tube in bag assembly.
4. Install one end on front cover pressure switch.
5. Route tube to lower port on collector box cover and
In horizontal applications the condensate drain trap is secured
to the furnace side panel, suspending it below the furnace.
A minimum clearance of 5.5” below the furnace must be
provided for the drain trap. Additionally, the appropriate
downward piping slope must be maintained from the drain
trap to the drain location. Refer to Condensate Drain Trap
and Lines for further details. If the drain trap and drain line
will be exposed to temperatures near or below freezing,
adequate measures must be taken to prevent condensate
from freezing.
Leveling ensures proper condensate drainage from the heat
level lengthwise from end to end. The furnace should have a
slight tilt from back to front with the access doors downhill
from the back panel approximately 1/2 to 3/4 inches. The
slight tilt allows the heat exchanger condensate, generated in
front cover.
This furnace has provisions allowing for electrical and gas line
connections through either side panel. In horizontal applica-
tions the connections can be made either through the “top” or
“bottom” of the furnace.
A drain pan must be provided if the furnace is installed above
a conditioned area. The drain pan must cover the entire area
under the furnace (and air conditioning coil if applicable).
Refer to Horizontal Applications and Conditions - Drain
Trap and Lines.
WARNING
POSSIBLE PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH MAY
OCCUR IF THE CORRECT CONVERSION KITS
ARE NOT INSTALLED. THE
APPROPRIATE KITS MUST BE APPLIED TO ENSURE SAFE AND PROPER
FURNACE OPERATION. ALL CONVERSIONS MUST BE PERFORMED BY A
QUALIFIED INSTALLER OR SERVICE AGENCY.
gas at standard altitude. Propane gas installations require an
-
High altitude installations may require both a pressure
necessary to compensate for the natural reduction in the
density of both the gas fuel and the combustion air at higher
altitude. For furnaces being converted to LP gas, it is strong-
ly recommended that a LPLP03 kit also be installed. The use
gas supply pressure is too low to support proper combustion.