94
M411429
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.
W002
WARNING
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
115. MAIN GAS BURNER AIR INLET
SHUTTERS
(All Gas Models)
Refer to Figure 41.
Air inlet shutter adjustments will vary from
location to location and will depend on the vent
system, number of units installed, make-up air and
line gas pressure. Opening the shutter increases
the amount of air supplied to the burner while
closing the shutter decreases the air supply. Adjust
air shutter as follows:
a. Unlock and open the access door.
b. Start the tumbler and check the flame pattern.
Correct air and gas mixture is indicated if the
flame pattern is primarily blue, with small
yellow tips, and bends to the right of the heater
section. Too little air is indicated if the flame is
yellow, lazy and smoky.
c. To adjust the air inlet shutter, loosen adjusting
screws. The control panel may have to be
removed temporarily to loosen adjusting screw.
d. Turn shutter to the right or left (or in or out on
new models) as necessary to obtain desired
flame intensity.
e. After shutter is adjusted, tighten locking screw
securely.
f. If the shutter is correctly adjusted, but the flame
pattern is straight up, insufficient air is flowing
through the tumbler and airflow switch is
improperly set. A flame pattern that flares to the
right and left, indicates that no air is flowing
through the tumbler.
The air inlet shutters on the burner must be
adjusted so sufficient primary air is metered
into the system for proper combustion and
maximum efficiency. Before adjusting the
inlet shutter be sure that all lint is removed
from lint compartment and lint screen.
W281
CAUTION
Figure 41
T047SE3A
T048SE3A
T049SE3A
PROPER
AIRFLOW
INSUFFICIENT
AIRFLOW
NO AIRFLOW
AIR SHUTTER
ADJUSTING SCREWS
AIR SHUTTER
ADJUSTING SCREWS
AIR SHUTTER
ADJUSTING SCREWS