American Dryer Corp. AD-230 - Manual (Page 30)

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NOTE: Water column pressure requirements (measured at the pressure tap of the gas valve body):
Natural Gas .......... 3.5 Inches Water Column
L.P. Gas ................ 10.5 Inches Water Column
IMPORTANT: THERE IS NO REGULATOR PROVIDED IN AN L.P. DRYER. The water
column (W.C.) pressure must be regulated at the source (L.P. tank) or an external
regulator must be added to each dryer.
3. Make a complete operational check of ALL the operating controls to insure that the timing is correct and
that the temperatures are set properly.
4. Make a complete operational check of ALL safety-related circuits (i.e., door switches, hi-limit thermostats,
sail switches, basket (tumbler) safety thermostats, etc.).
NOTE: The sail switch can be checked for proper operation by opening the control door while the
dryer is running and the heating unit (burner) active (on). The heating unit(s) should shut off
within a few seconds. If not, make the necessary adjustments.
5. Each basket (tumbler) should be operated through one (1) complete cycle to assure that no further
adjustments are necessary and that ALL components are functioning properly.
IMPORTANT: The dryer baskets (tumblers) are treated with a protective coating. This coating
can be removed by tumbling old clothes or material in the baskets (tumblers)
using a mild detergent to remove the protective coating.
NOTE: Drying and cooling cycles are complete when the L.E.D. display reads ... "donE".
6. Computer Programs / Selections...
Each microprocessor controller (computer) has been preprogrammed by the factory with the most
commonly used program (parameter) selections. If microprocessor controller (computer) program changes
are required, refer to the computer programming manual which was shipped with the dryer.
7. On models manufactured for 3-phase (3Ø) electrical input voltage, check the electrical service phase
sequence. While the dryer is operating, check to see if the baskets (tumblers) are rotating in the clockwise
(CW) direction (when viewed from the front of the dryer). If the baskets (tumblers) rotate counterclockwise
(CCW), the phasing is incorrect. Reverse the two (2) leads at connections L1, L2, or L3 of the power supply
to the dryer.