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Routine Maintenance _________________
Cleaning
A program or schedule should be established for periodic
inspection, cleaning, and removal of lint from various areas of
the dryer, as well as throughout the ductwork system. The
frequency of cleaning can best be determined from experience
at each location. Maximum operating efficiency is dependent
upon proper air circulation. The accumulation of lint can restrict
this airflow. If the guidelines in this section are met, an ADC
dryer will provide many years of efficient, trouble free, and most
importantly, safe operation.
WARNING
!
Lint from most fabrics is highly combustible. The
accumulation of lint can create a potential fire hazard.
Keep dryer area clear and free from combustible
materials, gasoline, and other flammable vapors and
liquids.
NOTE: Suggested time intervals shown are for average
usage which is considered six to eight operational (running)
hours per day.
Clean lint drawer and screen every third or fourth load.
NOTE: Frequency can best be determined at each location.
Daily
Beginning of each work shift.
Clean lint from the drawer and screen. Inspect lint screen and
replace if torn.
Weekly
Clean lint accumulation from lint chamber, thermostat, and
microprocessor temperature sensor area.
WARNING
!
To avoid the hazard of electrical shock, discontinue
electrical supply to the dryer.
Steam Dryers
Clean steam coil fins using compressed air and a vacuum
cleaner with brush attachment.
NOTE: When cleaning steam coil fins, be careful not to
bend the fins. If the fins are bent, straighten by using a fin
comb, which is available from local air conditioning supply
houses.
90 Days
Remove lint from tumbler, drive motors, and surrounding areas.
Remove lint from gas valve burner area with a dusting brush
or vacuum cleaner attachment.
NOTE: To prevent damage, avoid cleaning and/or touching
the ignitor/globar probe assembly.
450370 - 2
6 Months
Inspect and remove lint accumulation in customer furnished
exhaust ductwork system and from dryer's internal exhaust
ducting.
NOTE: The accumulation of lint in the exhaust ductwork
can create a potential fire hazard.
Do not obstruct the flow of combustion and ventilation air.
Check customer furnished back draft dampers in the
exhaust ductwork. Inspect and remove any lint
accumulation, which can cause the damper to bind or stick.
A back draft damper that is sticking partially closed can
result in slow drying and shutdown of heat circuit safety
switches or thermostats.
When cleaning the dryer cabinet(s), avoid using harsh
abrasives. A product intended for the cleaning of
appliances is recommended.
Adjustments
7 Days After Installation and Every 6 Months Thereafter
Inspect bolts, nuts, screws, grounding connections, and
nonpermanent gas connections (unions, shutoff valves, and
orifices). Motor and drive belts should be examined. Cracked
or seriously frayed belts should be replaced. Complete
operational check of controls and valves. Complete operational
check of all safety devices (door switches, lint drawer switch,
sail switch, burner and hi-limit thermostats).
Installation Requirements ____________
Installation should be performed by competent technicians in
accordance with local and state codes. In the absence of these
codes, the installation must conform to applicable American
National Standards: ANSI Z223.1-LATEST EDITION (National
Fuel Gas Code) or ANSI/NFPA NO. 70-LATEST EDITION
(National Electrical Code) or in Canada, the installation must
conform to applicable Canadian Standards: CAN/CGA-B149.1-
M91 (Natural Gas) or CAN/CGA-B149.2-M91 (L.P. Gas) or
LATEST EDITION (for General Installation and Gas Plumbing)
or Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or
LATEST EDITION (for Electrical Connections).
Enclosure, Air Supply,
and Exhaust Requirements
NOTE: The following information is very brief and general.
For a detailed description, refer to the Installation Manual
supplied with the dryer.
Bulkheads and partitions around the dryer should be made of
noncombustible materials. Allowances should be made for the
opening and closing of the control door and lint drawer. Also,
allowances should be made in the rear for ease of maintenance.
(Refer to the appropriate Installation Manual for recommended
distances and minimum allowances required.)
When the dryer is operating, it draws in room air, heats it, passes
this air through the 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 on gas dryers may result,
and you also could have premature motor failure from
overheating. The air supply must be given careful consideration
to insure proper performance of each dryer.
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