Installation guide

DRI-STEEM Vapor-logic

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When the ADS mode is set to “Interval,” the humidifier enters

a drain and flush sequence after a user-defined interval of time,

ignoring the amount of water converted to steam. The interval

is established by setting the “ADS day,” “ADS hour,” and “ADS

interval” parameters in the Set Up menu (the “Lbs of H2O

until ADS” parameter is not used when the ADS mode is set

to Interval). Once the ADS day is reached, the drain and flush

occurs at the ADS hour. The unit drains and flushes again after

the number of days specified by the ADS interval has passed.

For example, if the user sets the ADS day to Sunday, ADS hour

to 13, and the ADS interval to seven days, the humidifier enters

the drain and flush sequence every Sunday at 1:00 p.m. In this

example, if the ADS interval is changed from seven to six days,

the first ADS occurs on Sunday, the next on Saturday, the next

on Friday, and so on.

Note that if the ADS interval is not a multiple of seven days, the

ADS day becomes meaningless after the first drain and flush

sequence until the ADS mode is reset. The Interval ADS mode

allows the user to keep the humidifier on-line until a convenient

time for the drain and flush sequence.

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When the ADS mode is set to “Use + Interval,” the humidifier

enters the drain and flush sequence after both the Use and

Interval requirements are met, as stated in sections 1 and 2

above. For example, if the user sets the “Lbs of H2O until ADS”

to 10,000 lbs (4536 kg), the ADS day to Sunday, ADS hour to

23, and the ADS interval to one day, every day at 11:00 p.m.

the humidifier will check to see if at least 10,000 lbs (4536 kg)

of water converted to steam since the last ADS. If so, the

humidifier drains and flushes. If not, the humidifier waits until

the next interval (in this example, one day) to see if the usage

requirement is met. This allows the unit to drain and flush at a

convenient time.

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continued

VL3_IOM.pdf 79 11/19/2009 9:11:16 AM