Alliance Laundry Systems Stacked Drying Tumbler Make-UpAir, Construction, Drying Tumbler Enclosure, Positioning the Drying Tumbler, At a minimum, the National Fuel

Installation Instructions

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 EnclosureConstruction

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.

WARNING

To reduce the risk of serious injury, install lockable door(s) to prevent public access to rear of tumblers.

W055

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.

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