Alliance Laundry Systems LTZ87A*H0902 Series, Installation Instructions Manual

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Installation
800941
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Exhaust System
IMPORTANT: Keep exhaust duct as short as
possible.
NOTE: Be certain old ducts are cleaned before
installing your new unit.
For best drying results, recommended maximum
length of exhaust system is shown in
Table 2 .
To prevent backdraft when dryer is not in operation,
outer end of exhaust pipe must have a weather hood
with hinged dampers (obtain locally).
NOTE: Weather hood should be installed at least
30.5 cm (12) above the ground. Larger clearances
may be necessary for installations where heavy
snowfall can occur.
Number of
90° Elbows
Weather Hood Type
Recommended Use Only for Short Run Installations
Maximum length of 10.2 cm (4) diameter rigid metal duct
0 19.8 m (65 feet) 16.8 m (55 feet)
1 16.8 m (55 feet) 14.3 m (47 feet)
2 14.3 m (47 feet) 12.5 m (41 feet)
3 11.0 m (36 feet) 9.1 m (30 feet)
4 8.5 m (28 feet) 6.7 m (22 feet)
Maximum length of 10.2 cm (4) diameter flexible metal duct
0 13.7 m (45 feet) 10.7 m (35 feet)
1 10.7 m (35 feet) 8.2 m (27 feet)
2 9.1 m (30 feet) 6.4 m (21 feet)
3 7.6 m (25 feet) 5.2 m (17 feet)
4 6.1 m (20 feet) 4.5 m (15 feet)
NOTE: Deduct 1.8 m (6 feet) for each additional elbow.
Table 2
D673I
10.2 cm
(4)
10.2 cm
(4 in.)
6.35 cm
(2-1/2 in.)
D802I