10
JLA Limited
113374 - 4
C. DRYER ENCLOSURE REQUIREMENTS
Even though a 12-inch (30.48 cm) clearance is acceptable, it is recommended that the rear of the dryer be positioned
approximately 24-inches (60.96 cm) from the nearest obstruction (i.e., wall) for ease of installation, maintenance, and
service. Bulkheads and partitions
should be
made from noncombustible materials. The clearance between the bulkhead
header and the dryer
must be
a minimum of 4-inches (10.16 cm) and must not extend more than 4-inches (10.16 cm) to
the rear of the front. A 2-inch (5.08 cm) clearance is required between the bulkhead facing and the top of the dryer.
NOTE:
Bulkhead facing
should not be
installed until after the dryer is in place. Ceiling area
must be
located
a minimum of 12-inches (30.48 cm) above the dryer top console (module).
NOTE:
When fire sprinkler systems are located above the dryers, a minimum of 18-inches (45.72 cm) above
the dryer console (module) is required. Dryers may be positioned sidewall to sidewall, however, 1 or
2-inches (2.54 or 5.08 cm) is suggested for ease of installation and maintenance. Allowances
must be
made for the opening and closing of the control door and the lint door.
D. FRESH AIR SUPPLY REQUIREMENTS
When the dryer is operating, it draws in room air, heats it, passes this air through the basket (tumbler), and exhausts it out
of the building. Therefore, the room air
must be
continually replenished from the outdoors. If the make-up air is
inadequate, drying time and drying efficiency will be adversely affected. Ignition problems and sail switch “fluttering”
problems may result, as well as premature motor failure from overheating. The dryer
must be
installed with provisions
for adequate combustion and make-up air supply.
Air supply (make-up air)
must be
given careful consideration to ensure proper performance of each dryer. An unrestricted
source of air is necessary for each dryer. As a general rule, an unrestricted air entrance from the outdoors (atmosphere)
of a minimum of 350 square inches (2258.1 square cm) is required for each gas dryer (based on 1 square inch per 1000
Btus).
Содержание D90
Страница 40: ...JLA113374 4 10 02 07 5 ...