Installation Manual
34
AIR FLOW
CENTRAL
RETURN
GRILLE
FILTER
SUPPORT
BRACKET
(Field Supplied)
in the return air duct work.
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
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
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
follow approved purging methods in B149.1-15.
Check for leaks using an approved chloride-free soap and
water solution, an electronic combustible gas detector,
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
the burner by hand.
CAUTION
T
O
PREVENT
UNRELIABLE
OPERATION
OR
EQUIPMENT
DAMAGE
,
THE
INLET
GAS
SUPPLY
PRESSURE
MUST
BE
AS
SPECIFIED
ON
THE
UNIT
RATING
PLATE
WITH
ALL
OTHER
HOUSEHOLD
GAS
FIRED
APPLIANCES
OPERATING
.
5. Move the furnace gas valve manual con
position.
air.
the safety instructions in the Safety Considerations on
page 3 of this manual. If you do not smell gas after
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.