International comfort products WFSR040A030 Service And Technical Support Manual page 15

4. For approximately 2 sec, short (jumper) the COM-24v
terminal on control to the TEST/TWIN 3/16—in. (5
mm) quick-connect terminal on control until the LED
goes off. Remove jumper from terminals. (See Fig. 2)
NOTE: If TEST/TWIN and COM-24v terminals are
jumpered longer than 2 sec, LED will flash rapidly and
ignore component test request.
Component test sequence is as follows:
a. LED will display previous status code 4 times.
b. Inducer motor starts and continues to run until Step
f of component test sequence.
c. After 7 sec the hot surface igniter is energized for
15 sec., then off.
d. Blower motor operates on HEAT speed for 10 sec.
e. Blower motor operates on COOL speed for 10 sec.
f. Inducer motor stops.
5. Reconnect R lead to furnace control, remove tape
from blower door switch, and re-install blower door.
6. Verify furnace shut down by lowering thermostat
setting below room temperature.
7. Verify that furnace restarts by raising thermostat
setting above room temperature.
Checklist
1. Put away tools and instruments. Clean up debris.
2. Verify that the jumper is removed from the TEST/
TWIN terminal. Verify that there is nothing plugged
into the PLT connector. (Note: If there is a jumper
connector plugged into PLT, remove it and discard.)
(See Fig. 2)
3. Verify that the Blower/Heat Off Delay jumpers are set
as desired. (See Fig. 2)
4. Verify that there are no unsealed openings in the
blower shelf or casing.
5. Verify that the blower and control ("Main") doors are
properly installed.
6. Verify that the Status LED glows. If not, check that the
power supply is energized and that the blower door is
secure. (See Fig. 5)
7. Cycle test furnace with room thermostat to be sure
that it operates properly with the room thermostat.
Check all modes including Heat, Cool and Fan.
8. Check operation of accessories per manufacturer's
instructions.
9. Review Owner's Manual with owner.
10. Attach entire literature packet to furnace.
Care and Maintenance
WARNING
!
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
Never store flammable or combustible materials on,
near, or in contact with the furnace, such as:
1. Spray or aerosol cans, rags, brooms, dust
mops, vacuum cleaners, or other cleaning
tools.
2. Soap powders, bleaches, waxes or other
cleaning compounds,
containers, gasoline, kerosene, cigarette lighter
fluid, dry cleaning fluids, or other volatile fluids.
3. Paint thinners and other painting compounds,
paper bags, or other paper products. Exposure
to these materials could lead to corrosion of the
heat exchangers.
440 04 7101 09
plastic or plastic
Specifications subject to change without notice.
For continuing high performance and to minimize possible
furnace failure, periodic maintenance must be performed on
this furnace. Consult your local dealer about proper
frequency of maintenance and the availability of a
maintenance contract.
WARNING
!
ELECTRICAL SHOCK AND FIRE HAZARD
Failure to follow this warning could result in personal
injury, death, and/or property damage.
Turn off the gas and electrical supplies to the furnace
and install lockout tag before performing any
maintenance or service.
instructions on the label attached to the furnace.
WARNING
!
CARBON MONOXIDE POISONING AND FIRE
HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
Never operate furnace without a filter or filtration
device installed. Never operate a furnace with filter or
filtration device access doors removed.
CAUTION
!
CUT HAZARD
Failure to follow this caution may result in personal
injury.
Sheet metal parts may have sharp edges or burrs.
Use care and wear appropriate protective clothing,
safety glasses and gloves when handling parts, and
servicing furnaces.
The minimum maintenance on this furnace is as follows:
1. Check and clean air filter each month or more
frequently if required. Replace if torn.
2. Check blower motor and wheel for cleanliness each
heating and cooling season. Clean as necessary.
3. Check electrical connections for tightness and
controls for proper operation each heating season.
Service as necessary.
4. Inspect burner compartment before each heating
season for rust, corrosion, soot or excessive dust. If
necessary, have furnace and burner serviced by a
qualified service agency.
5. Inspect the vent pipe/vent system before each
heating season for water leakage, sagging pipes or
broken fittings. Have vent pipes/vent system serviced
by a qualified service agency.
6. Inspect any accessories attached to the furnace such
as a humidifier or electronic air cleaner. Perform any
service or maintenance to the accessories as
recommended in the accessory instructions.
Cleaning and/or Replacing Air Filter
The air filter type may vary depending on the application or
orientation. The filter is external to the furnace casing. There
are no provisions for an internal filter with this furnace. See
"Filter Arrangement" under the "Installation" section of this
manual.
Follow the operating
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