American Dryer Corp. 30 lb. Stacked Models - Manual (Page 20)

e. Repeat above procedure for other
tumbler.
3. Heat Circuit Operational Test
When a gas dryer is first started
(during initial start-up), it has a
tendency not to ignite on the first
attempt. This is because the gas
supply piping is filled with air. So, it
may take a few minutes for this air to
be purged from the lines.
The dryer is equipped with a direct
spark ignition (DSI) system which has
internal diagnostics. If ignition is not
established after first attempt, the
system will retry two (2) more times. If
ignition is not established after three
(3) attempts, the heat circuit DSI
module will lock out until it is manually
reset. To reset the DSI system, open
and close main door and restart dryer
(press desired temperature selection).
NOTE: During the purging period,
check to be sure that all gas shut-off
valves are open.
Once ignition is established, a gas
pressure test should be taken at the
gas valve pressure tap of each dryer
(tumbler) to assure that the water
column pressure is correct and
consistent.
NOTE: Water column pressure
requirements (measured at the gas
valve pressure tap):
Natural Gas - 4.0 Inches VJ.C.
L. P. Gas - 10.5 Inches W.C.
IMPORTANT: If dryer has been
converted to L.P., the water column
pressure must be regulated at the
source (L.P. tank) or an external
regulator must be added to each
dryer.
4. Make a complete operational check of
all safety-related circuits (i.e., lint
basket switches and sail switches).
NOTE: The sail switch can be checked
for proper operation by opening the
middle access (control) door while the
dryer is running and the heating unit
(burner) active (on). The heating
unit(s) should shut off within a few
seconds. If not, make necessary
adjustments.
5. Each tumbler should be operated
through one complete cycle to assure
that
no further adjustments are
necessary and that all components are
functioning properly.
NOTE: Drying and cooling cycles are
complete when display reads ...
“donE”.
IMPORTANT: The dryer tumblers
(baskets/drums) are treated with a
protective coating. This coating can be
removed by tumbling old clothes or
material in the baskets/drums, using
a
mild detergent to remove the
protective coating.
6. Computer Programs/Selections
Each computer has been
preprogrammed by the factory with
the most commonly used parameter
selections.
If computer program
changes are required, refer to the
user's manual which was shipped with
the dryer.
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