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Section 6 Adjustments
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the tumbler before servicing.
• Close gas shut-off valve to gas tumbler before servicing.
• Close steam valve to steam tumbler before servicing.
• Never start the tumbler with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the tumbler is properly grounded.
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WARNING
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
63. AIRFLOW SWITCH
Gas and Electric Tumblers
Refer to Figure 22.
The airflow switch (located on the rear of tumbler,
Figure 22, is set at the factory for proper operation.
However, if there is a problem with the switch, it should
be adjusted as follows:
NOTE: Steam models do not have an airflow
switch.
NOTE: Control panel must be in place and access
door closed before attempting to adjust airflow
switch.
IMPORTANT: Airflow switch disc must remain
closed during operation. If it opens and closes
during the drying cycle, this indicates insufficient
airflow through the tumbler. If switch remains
open, or pops open and closed during the cycle, the
heating system will shut off. The cylinder and fan
will continue to operate even though the airflow
switch is opened.
The airflow switch operation is controlled by the
counterweight position on the shaft. Moving the
counterweight either increases or decreases airflow
switch sensitivity. The counterweight should be
adjusted so the disc moves away from the cabinet when
the lint panel is opened 1-1/2 in. (38.1 mm) with a full
load. Adjust the airflow switch as follows:
a. Load the tumbler. This adjustment is much
faster to make with one person opening lint
panel in front and another adjusting the
counterweight in the rear of tumbler.
b. Temporarily tape down the lint panel safety
switch located behind the upper right corner of
the lint panel.
c. Start the tumbler. Open the lint panel 1-1/2 in.
(38.1 mm). The airflow disc should move away
from the cabinet, opening the switch contacts
and shutting off the heat system. This indicates
proper operation and proper adjustment.
d. If switch is not opening as described in step 3,
it should be adjusted so it is MORE sensitive.
Depress the spring clip and move
counterweight toward disc. Retest by opening
lint panel and continue moving counterweight
toward disc until switch operates as described
in Step c.
e. If switch opens BEFORE lint panel is opened
the proper distance, step 3, it should be adjusted
so it is LESS sensitive. Depress the spring clip
and move counterweight away from the disc.
Retest by opening lint panel and continue
moving counterweight away from disc until
switch operates as described in Step c.
IMPORTANT: Remove tape from lint panel switch.
To reduce the risk of fire, airflow switch
operation may be affected by a clogged lint
screen, lack of make-up air, obstructions at
the thimble or in the customer installed
main or collector ducts. These conditions
must be checked and necessary corrections
made before adjusting airflow switch.
Always adjust airflow at installation.
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WARNING
