GMEC96 Installation Manual

34

-
rations. Consult your distributor for information on our



Filters must be installed in either the central return register or
in the return air duct work.
FILTER
AIR FLOW
CENTRAL
RETURN
GRILLE
FILTER
SIDE RETURN
EXTERNAL FILTER
RACK KIT
(EITHER SIDE)
Figure 38

Furnace must have a 115 VAC power supply properly connected
and grounded. Proper polarity must be maintained for correct
operation. In addition to the following start-up and adjustment
items, refer to further information in Operational Checks
section.

Check that all furnace cabinet sealing components are in
place (plugs, grommets, gaskets).
NOTE; If the furnace bottom panel has not been removed
for a return duct connection, all preforations must be sealed
with duct sealant compound or other suitable method to
prevent air leakeage. For optimal performance verify that
all door gaskets are properly in place and replace as needed
to prevent air leakage.

The drain trap MUST be primed prior to furnace startup. To
-
sures proper furnace drainage upon startup and prohibits the


Purge gas lines of air prior to startup. Be sure not purge lines
into an enclosed burner compartment.
Check for leaks using an approved chloride-free soap and wa-
ter solution, an electronic combustible gas detector, or other
approved method. Verify that all required kits (propane gas,
high altitude, etc.) have been appropriately installed.

         
furnace.
 
3. Set the room thermostat to the lowest possible setting.
4. Remove the burner compartment door.
 This furnace is equipped with an ignition device
which automatically lights the burner. Do not try to light
the burner by hand.
5. Move the furnace gas valve manual control to the OFF
position.
 

air.
 
the Safety Considerations on page 2 of this manual.
  
furnace gas valve manual control to the ON position.
8. Replace the burner compartment door.
         
furnace.
10. Turn on the electrical power to the furnace.
11. Adjust the thermostat to a setting above room
temperature.
12. After the burners are lit, set the thermostat to desired
temperature.

1. Set the thermostat to the lowest setting.
The integrated control will close the gas valve and
       
induced draft blower will be de-energized. The

expires (selectable 90, 120, 150, 180 seconds).
2. Remove the burner compartment door and move the
furnace gas valve manual control to the OFF position.
 
furnace.
4. Replace the burner compartment door.


The line pressure supplied to the gas valve must be within the


in the gas piping drip leg. The supply pressure must be mea-
sured with the burners operating. To measure the gas supply
pressure, use the following procedure.
 
external to the furnace.
2. Connect a calibrated water manometer (or appropriate
gas pressure gauge) at either the gas valve inlet pressure
        

tap.