Alliance Laundry Systems Stacked Drying Tumbler - Manual (Page 18)

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Installation Instructions
M412060 16
Make-Up Air
A tumbler is forced-air exhausted and requires
provisions for make-up air to replace the air exhausted
by the tumbler.
The manufacturer’s recommended make up air
opening for each tumbler is 144 square inches (929 sq.
cm) of free area. At a minimum, the National Fuel
Gas Code requires tumblers to have at least one
square inch (6.5 sq. cm) of opening for every 1000
BTU/hr. of input rating for proper combustion.
EXAMPLE: A tumbler with a rated input of 120,000
BTU/hr. (30,240 Kcal) requires 120 square inches
(774.2 sq. cm) of free opening.
Protective louvers in the opening to the outdoors can
reduce air movement by approximately 40 percent.
The opening must compensate for the area taken up by
the louvers.
NOTE: The make-up air openings into a room
containing tumblers, and a gas fired hot water
heater or other gravity vented appliances must be
increased sufficiently to prevent downdrafts in any
of the vents when all tumblers are in operation. Do
not install gravity vented appliances between
tumblers and air inlet openings.
Positioning the Drying Tumbler
The tumbler may be removed from the skid before
moving it to the installation location, or it may be
moved while still attached to the skid. To remove
tumbler from the skid, unscrew the four shipping
capscrews (one at each corner) and lift the tumbler
from the skid.
The leveling legs will be in a bag inside the cylinder.
Screw the four leveling legs into the level adjusting
fittings from the bottom.
IMPORTANT: The tumbler should be slid in place
using the wooden crate pad supplied on the
shipping crate to prevent damage to the flooring.
Slide the tumbler to its permanent location and level.
Keep the tumbler as close to the floor as possible. The
tumbler must rest firmly on the floor so weight of
tumbler is evenly distributed. Tumbler must not rock.
Shim under the corners to level and stabilize the unit.
Drying Tumbler Enclosure
Construction
IMPORTANT: DO NOT block the airflow at the
top rear of the tumbler with laundry, etc. Doing so
would prevent adequate air supply to the tumbler’s
heat chamber.
A typical enclosure is shown in Figure 5. Note that the
enclosure does touch the tumbler top and side panels.
Note, too, the minimum and maximum dimensions. Be
aware that there may be local codes and ordinances
which must be complied with.
IMPORTANT: Install tumblers with sufficient
clearance for servicing and operation. Refer to
Figure 5.
TO FACILITATE INSTALLATION: To ensure room
for leveling, adjusting and lining up the tumblers, size
the enclosure opening three inches (7.6 cm) larger than
the tumbler dimensions. After the tumblers are lined
up and level, close the gap with a trim board.
To reduce the risk of serious injury, install
lockable door(s) to prevent public access
to rear of tumblers.
W055
WARNING