MAXIDRY MAXIMD200, Installation Manual, Page: 42 / 64

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NOTE:
Dryer can be stopped at any time by opening the main door or by pressing the “CLEAR/
STOP” key. To restart the dryer, press the “ENTER/START” key or a preprogrammed cycle
key (i.e., “E”).
NOTE: Pressing keyboard (touch pad) key “A,” “B,” “C,” “D,” or “F” will also start the dryer. The
six preprogrammed drying cycles (“A” thru “F”) have been stored in the microprocessor
controller’s (computer’s) memory. Refer to the Programming Manual supplied with the dryer
for these preprogrammed cycles.
10. Check to insure that the tumbler starts in the clockwise direction. Additionally, check the direction of the
blower motor to insure that it rotates in the counterclockwise direction as viewed from the left side of the
dryer. If it does, the phasing is correct. If the phasing is incorrect, reverse two (2) of the leads at L1, L2,
or L3 of the power supply connections made to the dryer.
IMPORTANT: Dryer blower motor and impellor/fan shaft as viewed from the left side of the dryer
must turn in the counterclockwise direction, otherwise the dryer efficiency
will be
drastically reduced, and premature component failure can result.
11. Heat Circuit Operational Test
a. Gas Models
1) When the dryer is first started (during initial start-up), the burner has a tendency not to ignite on the
first attempt. This is because the gas supply piping is filled with air, so the dryer may have to be
stopped and restarted several times for this air to be purged from the lines.
2) The dryer has one (1) burner box, which has its own Direct Spark Ignition (DSI) module and Spark
Ignition/Flame-Probe Assembly. If ignition is not established after first attempt, the heat circuit DSI
module will lockout until it is manually reset. To reset the DSI system, open and close the loading
doors and restart the dryer (press “ENTER/START” key).
NOTE:
During the purging period, verify that
ALL
gas shutoff valves are open.
3) Once ignition is established, a gas pressure test
should be
taken at the gas valve pressure tap of the
dryer to assure that the water column pressure is correct and consistent.
NOTE: Water column pressure requirements (measured at both gas valve pressure taps)...
Natural Gas ----------------- 3.5 inches (8.7 mb) water column.
Liquid Propane ------------- 10.5 inches (26.1 mb) water column.
IMPORTANT: There is no regulator provided in a liquid propane dryer. The water column pressure
must be regulated at the source (liquid propane tank), or an external regulator must
be added to each dryer.
b. Steam Models
1) Check to ensure that the steam damper is functioning properly.