26
UPRIGHT INSTALLATIONS
Depending on the installation and/or customer preference, differing
filter arrangements can be applied. Filters can be installed in the
central return register or a side panel external filter rack kit (up-
flows). As an alternative a media air filter or electronic air cleaner
can be used as the requested filter.
The following figure shows possible filter locations.
FILTER
AIR FLOW
CENTRAL
RETURN
GRILLE
FILTER
SIDE RETURN
EXTERNAL FILTER
RACK KIT
(EITHER SIDE)
FILTER
AIR FLOW
FILTER
ACCESS
DOOR
CENTRAL
RETURN
GRILLE
RETURN
DUCT
FI
L
TE
R
FILTER
SUPPORT
BRACKET
(PROVIDED)
Possible Upright Upflow Possible Upright Counterflow
Filter Locations
NOTE: Internal filter retention is not provided on this furnace. If an
internal installation is desired, an internal filter retention kit is avail-
able as an accessory. Please see your distributor for details.
HORIZONTAL INSTALLATIONS
Filters must be installed in either the central return register or in the
return air duct work.
XIVXIV
XIVXIV
XIV
. ST. ST
. ST. ST
. ST
ARAR
ARAR
AR
TUP PRTUP PR
TUP PRTUP PR
TUP PR
OCEDURE & ADOCEDURE & AD
OCEDURE & ADOCEDURE & AD
OCEDURE & AD
JUSTJUST
JUSTJUST
JUST
MENTMENT
MENTMENT
MENT
Furnace must have a 115 VAC power supply properly connected
and grounded. Proper polarity must be maintained for correct op-
eration. In addition to the following start-up and adjustment items,
refer to further information in Section XVI, Operational Checks.
HEAT ANTICIPATOR SETTING
The heat anticipator in the room thermostat must be correctly ad-
justed to obtain the proper number of cycles per hour and to prevent
“overshooting” of the setting. Set the heat anticipator setting to 0.7
amps. Follow the thermostat manufacturer’s instructions on how to
adjust the heat anticipator setting.
DRAIN TRAP PRIMING
The drain trap must be primed prior to furnace startup. To prime, fill
the drain trap with water. This ensures proper furnace drainage
upon startup and prohibits the possibility of flue gases escaping
through the drain system.
FURNACE OPERATION
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 water
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 STARTUP
1. Close the manual gas shutoff valve external to the furnace.
2. Turn off the electrical power to the furnace.
the cooling unit to avoid condensation in the heating element. With
a parallel flow arrangement, the dampers or other means used to
control the flow of air must be adequate to prevent chilled air from
entering the furnace and, if manually operated, must be equipped
with means to prevent operation of either unit unless the damper is
in the full heat or cool position.
When the furnace is installed without a cooling coil, it is recom-
mended that a removable access panel be provided in the outlet air
duct. This opening shall be accessible when the furnace is installed
and shall be of such a size that the heat exchanger can be viewed
for visual light inspection or such that a sampling probe can be in-
serted into the airstream. The access panel must be made to pre-
vent air leaks when the furnace is in operation.
When the furnace is heating, the temperature of the return air enter-
ing the furnace must be between 55°F and 100°F.
FILTERS - READ THIS SECTION BEFORE INSTALLING THE
RETURN AIR DUCTWORK
Filters must be used with this furnace. Discuss filter maintenance
with the building owner. Filters do not ship with this furnace, but
must be provided by the installer. Filters must comply with UL900 or
CAN/ULCS111 standards. If the furnace is installed without filters,
the warranty will be voided.
On upflow units, guide dimples locate the side return cutout
locations. Use a straight edge to scribe lines connecting the
dimples. Cut out the opening on these lines. NOTE: An
undersized opening will cause reduced airflow.
Refer to Minimum Filter Area tables to determine filter area require-
ments.
600 800 1000 1200 1400 1600 2000
0453_XA 188* 192 240 288 --- --- ---
0703_XA --- 282* 282* 282* 336 --- ---
0704_XA --- --- 260* 260* 336 384 ---
0904_XA --- --- 376* 376* 376* 384 ---
0905_XA --- --- --- 376* 376* 384 480
115_XA --- --- --- 470* 470* 470* 480
Input__Airflow
COOLING AIRFLOW REQUIREMENT (CFM)
*Minimum filter area dictated by heating airflow requirement.
Permanent Minimum Filter Area (sq. in)
[Based on a 600 ft/min filter face velocity]
600 800 1000 1200 1400 1600 2000
0453_XA 376* 384 480 576 --- --- ---
0703_XA --- 564* 564* 564* 672 --- ---
0704_XA --- --- 564* 564* 672 768 ---
0904_XA --- --- 752* 752* 752* 768 ---
0905_XA --- --- --- 752* 752* 768 800
1155_XA --- --- --- 940* 940* 940* 800
Input__Airflow
COOLING AIRFLOW REQUIREMENT (CFM)
*Minimum filter area dictated by heating airflow requirement.
Disposable Minimum Filter area (sq. in)
[Based on 300 ft/min filter face velocity]
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