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6 American Dryer Corporation 450431-3
!
IMPORTANT: Make-up air must be provided from a
source free of dry cleaning fumes. Make-up air that is
contaminated by dry cleaning fumes will result in
irreparable damage to motors and other dryer
components.
Exhaust ductwork should be designed and installed by a
competent technician. Improperly sized ductwork will create
excessive back pressure, which will result in slow drying,
increased use of energy, and shut down of the burner by the
airflow (sail) switch, burner hi-limit or lint chamber hi-heat
protector thermostat. (Refer to appropriate Installation
Manual for more details.)
CAUTION: Improperly sized or installed
exhaust ductwork can create a potential fire
hazard.
Compressed Air Requirements
The dryer requires an external supply of air (2.5 cfm @ 80
psi [0.07 cmm @ 5.52 bar) on the steam models, the air is
necessary to operate the damper system. On both steam,
as well as the gas model, the air is necessary/required for
the blower air jet operation to clean lint from the impellor/
fan (squirrel cage type).
Electrical and Gas Requirements
It is your responsibility to have all electrical connections
made by a properly licensed and competent electrician to
assure that the electrical installation is adequate and
conforms to local and state regulations or codes. In the
absence of such codes, all electrical connections, materials,
and workmanship must conform to the applicable
requirements of the National Electrical Code ANSI/NFPA NO.
70-LATEST EDITION or in Canada, the Canadian Electrical
Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION.
IMPORTANT: Failure to comply with these codes or
ordinances and/or the requirements stipulated in this
manual can result in personal injury or component failure.
The dryer installation must meet the American National
Standard, National Fuel Gas Code ANSI Z223.1-LATEST
EDITION, or in Canada, the Canadian Electrical Codes Parts
1 & 2 CSA C22.1-1990 or LATEST EDITION (for Electrical
Connections) as well as, local codes and ordinances, and
must be done by a qualified technician.
NOTE: Undersized gas piping will result in ignition
problems and slow drying and can create a safety hazard.
The dryer must be connected to the type of gas (natural or
L.P.) indicated on the dryer data label. If this information
does not agree with the type of gas available, contact the
reseller who sold the dryer or contact the factory.
The gas input ratings shown on the dryer data label are for
elevations up to 2,000 feet (610 meters), unless elevation
requirements of over 2,000 feet (610 meters) were specified
at the time the dryer order was placed with the factory. The
adjustment for dryers in the field for elevations over 2,000
feet (610 meters) are made by changing the burner orifices.
If this adjustment is necessary, contact the reseller who
sold the dryer or contact the factory.
NOTE: Any burner changes must be made by a qualified
technician.
Operational Service Check Procedure
Turn on electric power to the dryer.
To start dryer:
Display will read “READY.”
Press “E” on the keypad of microprocessor controller
(computer).
The dryer will start to run.
NOTE: Pressing keypad “A,” “B,” “C,” “D,” or “F” will also
start the dryer. Six preprogrammed drying cycles (“A”
through “F”) have been stored in the computer’s memory.
(Refer to Computer Operator’s Manual for details.)
Make a complete operational check of all the operating
controls to assure that the timing is correct, temperature
selection switches are functioning, etc.
Make a complete operational check of all safety-related
circuits: door switch(es), hi-limit thermostat, sail switch,
cycling thermostats, etc.
For gas dryers, a gas pressure test should be taken at the
gas valve pressure tap of each dryer to assure that the water
column pressure is correct and consistent.
NOTE: Water column pressure requirements (measured
at the pressure tap on the gas valve body):
Natural Gas – 3.5 in wc; L.P. Gas – 10.5 in wc
If computer program changes are required, refer to the
Phase 6 OPL Operator’s Manual (ADC P/N 113022) for
details.
The dryer should be operated through one complete cycle
to assure that no further adjustments are necessary and
that all components are functioning properly.
Check the electric service phase sequence. While the dryer
is operating, check to see if the tumbler is rotating in the
proper direction. Looking from the front, the tumbler should
spin in the clockwise direction. If so, the phasing is correct.
If the phasing is incorrect, reverse two leads at connections
L1, L2, or L3 of power supply to the dryer.
Description of Parts __________________
Control Panel (Microprocessor)
Opening the control panel will allow access to the major
components, which include the computer board and keypad.
The keypad inputs to the computer what temperature and
program has been selected. The computer controls the
entire operation of the machine. It accepts inputs and gives
outputs to various parts throughout the machine.