
4
INTRODUCTION
Figure 4-1: The key pad clearly displays the system
functions of the humidifier.
VAPOR-LOGIC
ACTUAL RH: 35%
Figure 4-2: The VAPOR-LOGIC
2
key pad is mounted on
the CRU humidifier control cabinet, located near the unit.
Figure 4-4: The STS and LTS humidifiers offer the
flexibility of mounting the VAPOR-LOGIC
2
key pad on a
control cabinet that is mounted on either the humidifier or
on a wall near the humidifier.
Figure 4-3: The VAPOR-LOGIC
2
key pad is mounted on
the front of the VAPORMIST cabinet for easy access.
This manual explains the operation of and gives instruc-
tions for the use of the VAPOR-LOGIC
®
2
microcontroller.
(See figure 4-1.)
VAPOR-LOGIC
2
is a custom microprocessor-based
humidifier control system developed to be compatible with
DRI-STEEM single stage humidifiers. (See figures 4-2,
4-3 and 4-4 below.) The versatile software is configured
to meet the needs of humidification system control
variations and to adapt to a multitude of humidifier
applications. The advanced technology of
VAPOR-LOGIC
2
provides reliable operation while its
simple operating procedures make it easy to use.
VAPOR-LOGIC
2
features include a self-diagnostic test
during initialization, end of season drain and compatibility
with most control inputs. A full-function integral digital
display/key pad allows you to monitor and adjust humidi-
fier control parameters.
VAPOR-LOGIC
2
controls single stage humidification
systems with control accuracies to within ±2% RH.
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